Mercurial > hg > truffle
annotate src/cpu/x86/vm/sharedRuntime_x86_64.cpp @ 4970:33df1aeaebbf
Merge with http://hg.openjdk.java.net/hsx/hsx24/hotspot/
author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
---|---|
date | Mon, 27 Feb 2012 13:10:13 +0100 |
parents | 74c0b866fe8d 0382d2b469b2 |
children | 18a5539bf19b |
rev | line source |
---|---|
0 | 1 /* |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "asm/assembler.hpp" | |
27 #include "assembler_x86.inline.hpp" | |
28 #include "code/debugInfoRec.hpp" | |
29 #include "code/icBuffer.hpp" | |
30 #include "code/vtableStubs.hpp" | |
31 #include "interpreter/interpreter.hpp" | |
32 #include "oops/compiledICHolderOop.hpp" | |
33 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
34 #include "runtime/sharedRuntime.hpp" | |
35 #include "runtime/vframeArray.hpp" | |
36 #include "vmreg_x86.inline.hpp" | |
37 #ifdef COMPILER1 | |
38 #include "c1/c1_Runtime1.hpp" | |
39 #endif | |
40 #ifdef COMPILER2 | |
41 #include "opto/runtime.hpp" | |
42 #endif | |
0 | 43 |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3363
diff
changeset
|
44 #define __ masm-> |
0 | 45 |
524
c9004fe53695
6792301: StackAlignmentInBytes not honored for compiled native methods
xlu
parents:
520
diff
changeset
|
46 const int StackAlignmentInSlots = StackAlignmentInBytes / VMRegImpl::stack_slot_size; |
c9004fe53695
6792301: StackAlignmentInBytes not honored for compiled native methods
xlu
parents:
520
diff
changeset
|
47 |
0 | 48 class SimpleRuntimeFrame { |
49 | |
50 public: | |
51 | |
52 // Most of the runtime stubs have this simple frame layout. | |
53 // This class exists to make the layout shared in one place. | |
54 // Offsets are for compiler stack slots, which are jints. | |
55 enum layout { | |
56 // The frame sender code expects that rbp will be in the "natural" place and | |
57 // will override any oopMap setting for it. We must therefore force the layout | |
58 // so that it agrees with the frame sender code. | |
59 rbp_off = frame::arg_reg_save_area_bytes/BytesPerInt, | |
60 rbp_off2, | |
61 return_off, return_off2, | |
62 framesize | |
63 }; | |
64 }; | |
65 | |
66 class RegisterSaver { | |
67 // Capture info about frame layout. Layout offsets are in jint | |
68 // units because compiler frame slots are jints. | |
69 #define DEF_XMM_OFFS(regnum) xmm ## regnum ## _off = xmm_off + (regnum)*16/BytesPerInt, xmm ## regnum ## H_off | |
70 enum layout { | |
71 fpu_state_off = frame::arg_reg_save_area_bytes/BytesPerInt, // fxsave save area | |
72 xmm_off = fpu_state_off + 160/BytesPerInt, // offset in fxsave save area | |
73 DEF_XMM_OFFS(0), | |
74 DEF_XMM_OFFS(1), | |
75 DEF_XMM_OFFS(2), | |
76 DEF_XMM_OFFS(3), | |
77 DEF_XMM_OFFS(4), | |
78 DEF_XMM_OFFS(5), | |
79 DEF_XMM_OFFS(6), | |
80 DEF_XMM_OFFS(7), | |
81 DEF_XMM_OFFS(8), | |
82 DEF_XMM_OFFS(9), | |
83 DEF_XMM_OFFS(10), | |
84 DEF_XMM_OFFS(11), | |
85 DEF_XMM_OFFS(12), | |
86 DEF_XMM_OFFS(13), | |
87 DEF_XMM_OFFS(14), | |
88 DEF_XMM_OFFS(15), | |
89 fpu_state_end = fpu_state_off + ((FPUStateSizeInWords-1)*wordSize / BytesPerInt), | |
90 fpu_stateH_end, | |
91 r15_off, r15H_off, | |
92 r14_off, r14H_off, | |
93 r13_off, r13H_off, | |
94 r12_off, r12H_off, | |
95 r11_off, r11H_off, | |
96 r10_off, r10H_off, | |
97 r9_off, r9H_off, | |
98 r8_off, r8H_off, | |
99 rdi_off, rdiH_off, | |
100 rsi_off, rsiH_off, | |
101 ignore_off, ignoreH_off, // extra copy of rbp | |
102 rsp_off, rspH_off, | |
103 rbx_off, rbxH_off, | |
104 rdx_off, rdxH_off, | |
105 rcx_off, rcxH_off, | |
106 rax_off, raxH_off, | |
107 // 16-byte stack alignment fill word: see MacroAssembler::push/pop_IU_state | |
108 align_off, alignH_off, | |
109 flags_off, flagsH_off, | |
110 // The frame sender code expects that rbp will be in the "natural" place and | |
111 // will override any oopMap setting for it. We must therefore force the layout | |
112 // so that it agrees with the frame sender code. | |
113 rbp_off, rbpH_off, // copy of rbp we will restore | |
114 return_off, returnH_off, // slot for return address | |
115 reg_save_size // size in compiler stack slots | |
116 }; | |
117 | |
118 public: | |
119 static OopMap* save_live_registers(MacroAssembler* masm, int additional_frame_words, int* total_frame_words); | |
120 static void restore_live_registers(MacroAssembler* masm); | |
121 | |
122 // Offsets into the register save area | |
123 // Used by deoptimization when it is managing result register | |
124 // values on its own | |
125 | |
126 static int rax_offset_in_bytes(void) { return BytesPerInt * rax_off; } | |
304 | 127 static int rdx_offset_in_bytes(void) { return BytesPerInt * rdx_off; } |
0 | 128 static int rbx_offset_in_bytes(void) { return BytesPerInt * rbx_off; } |
2935
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
129 static int r10_offset_in_bytes(void) { return BytesPerInt * r10_off; } |
0 | 130 static int xmm0_offset_in_bytes(void) { return BytesPerInt * xmm0_off; } |
131 static int return_offset_in_bytes(void) { return BytesPerInt * return_off; } | |
132 | |
133 // During deoptimization only the result registers need to be restored, | |
134 // all the other values have already been extracted. | |
135 static void restore_result_registers(MacroAssembler* masm); | |
136 }; | |
137 | |
138 OopMap* RegisterSaver::save_live_registers(MacroAssembler* masm, int additional_frame_words, int* total_frame_words) { | |
139 | |
140 // Always make the frame size 16-byte aligned | |
141 int frame_size_in_bytes = round_to(additional_frame_words*wordSize + | |
142 reg_save_size*BytesPerInt, 16); | |
143 // OopMap frame size is in compiler stack slots (jint's) not bytes or words | |
144 int frame_size_in_slots = frame_size_in_bytes / BytesPerInt; | |
145 // The caller will allocate additional_frame_words | |
146 int additional_frame_slots = additional_frame_words*wordSize / BytesPerInt; | |
147 // CodeBlob frame size is in words. | |
148 int frame_size_in_words = frame_size_in_bytes / wordSize; | |
149 *total_frame_words = frame_size_in_words; | |
150 | |
151 // Save registers, fpu state, and flags. | |
152 // We assume caller has already pushed the return address onto the | |
153 // stack, so rsp is 8-byte aligned here. | |
154 // We push rpb twice in this sequence because we want the real rbp | |
155 // to be under the return like a normal enter. | |
156 | |
157 __ enter(); // rsp becomes 16-byte aligned here | |
158 __ push_CPU_state(); // Push a multiple of 16 bytes | |
159 if (frame::arg_reg_save_area_bytes != 0) { | |
160 // Allocate argument register save area | |
304 | 161 __ subptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 162 } |
163 | |
164 // Set an oopmap for the call site. This oopmap will map all | |
165 // oop-registers and debug-info registers as callee-saved. This | |
166 // will allow deoptimization at this safepoint to find all possible | |
167 // debug-info recordings, as well as let GC find all oops. | |
168 | |
169 OopMapSet *oop_maps = new OopMapSet(); | |
170 OopMap* map = new OopMap(frame_size_in_slots, 0); | |
171 map->set_callee_saved(VMRegImpl::stack2reg( rax_off + additional_frame_slots), rax->as_VMReg()); | |
172 map->set_callee_saved(VMRegImpl::stack2reg( rcx_off + additional_frame_slots), rcx->as_VMReg()); | |
173 map->set_callee_saved(VMRegImpl::stack2reg( rdx_off + additional_frame_slots), rdx->as_VMReg()); | |
174 map->set_callee_saved(VMRegImpl::stack2reg( rbx_off + additional_frame_slots), rbx->as_VMReg()); | |
175 // rbp location is known implicitly by the frame sender code, needs no oopmap | |
176 // and the location where rbp was saved by is ignored | |
177 map->set_callee_saved(VMRegImpl::stack2reg( rsi_off + additional_frame_slots), rsi->as_VMReg()); | |
178 map->set_callee_saved(VMRegImpl::stack2reg( rdi_off + additional_frame_slots), rdi->as_VMReg()); | |
179 map->set_callee_saved(VMRegImpl::stack2reg( r8_off + additional_frame_slots), r8->as_VMReg()); | |
180 map->set_callee_saved(VMRegImpl::stack2reg( r9_off + additional_frame_slots), r9->as_VMReg()); | |
181 map->set_callee_saved(VMRegImpl::stack2reg( r10_off + additional_frame_slots), r10->as_VMReg()); | |
182 map->set_callee_saved(VMRegImpl::stack2reg( r11_off + additional_frame_slots), r11->as_VMReg()); | |
183 map->set_callee_saved(VMRegImpl::stack2reg( r12_off + additional_frame_slots), r12->as_VMReg()); | |
184 map->set_callee_saved(VMRegImpl::stack2reg( r13_off + additional_frame_slots), r13->as_VMReg()); | |
185 map->set_callee_saved(VMRegImpl::stack2reg( r14_off + additional_frame_slots), r14->as_VMReg()); | |
186 map->set_callee_saved(VMRegImpl::stack2reg( r15_off + additional_frame_slots), r15->as_VMReg()); | |
187 map->set_callee_saved(VMRegImpl::stack2reg(xmm0_off + additional_frame_slots), xmm0->as_VMReg()); | |
188 map->set_callee_saved(VMRegImpl::stack2reg(xmm1_off + additional_frame_slots), xmm1->as_VMReg()); | |
189 map->set_callee_saved(VMRegImpl::stack2reg(xmm2_off + additional_frame_slots), xmm2->as_VMReg()); | |
190 map->set_callee_saved(VMRegImpl::stack2reg(xmm3_off + additional_frame_slots), xmm3->as_VMReg()); | |
191 map->set_callee_saved(VMRegImpl::stack2reg(xmm4_off + additional_frame_slots), xmm4->as_VMReg()); | |
192 map->set_callee_saved(VMRegImpl::stack2reg(xmm5_off + additional_frame_slots), xmm5->as_VMReg()); | |
193 map->set_callee_saved(VMRegImpl::stack2reg(xmm6_off + additional_frame_slots), xmm6->as_VMReg()); | |
194 map->set_callee_saved(VMRegImpl::stack2reg(xmm7_off + additional_frame_slots), xmm7->as_VMReg()); | |
195 map->set_callee_saved(VMRegImpl::stack2reg(xmm8_off + additional_frame_slots), xmm8->as_VMReg()); | |
196 map->set_callee_saved(VMRegImpl::stack2reg(xmm9_off + additional_frame_slots), xmm9->as_VMReg()); | |
197 map->set_callee_saved(VMRegImpl::stack2reg(xmm10_off + additional_frame_slots), xmm10->as_VMReg()); | |
198 map->set_callee_saved(VMRegImpl::stack2reg(xmm11_off + additional_frame_slots), xmm11->as_VMReg()); | |
199 map->set_callee_saved(VMRegImpl::stack2reg(xmm12_off + additional_frame_slots), xmm12->as_VMReg()); | |
200 map->set_callee_saved(VMRegImpl::stack2reg(xmm13_off + additional_frame_slots), xmm13->as_VMReg()); | |
201 map->set_callee_saved(VMRegImpl::stack2reg(xmm14_off + additional_frame_slots), xmm14->as_VMReg()); | |
202 map->set_callee_saved(VMRegImpl::stack2reg(xmm15_off + additional_frame_slots), xmm15->as_VMReg()); | |
203 | |
204 // %%% These should all be a waste but we'll keep things as they were for now | |
205 if (true) { | |
206 map->set_callee_saved(VMRegImpl::stack2reg( raxH_off + additional_frame_slots), | |
207 rax->as_VMReg()->next()); | |
208 map->set_callee_saved(VMRegImpl::stack2reg( rcxH_off + additional_frame_slots), | |
209 rcx->as_VMReg()->next()); | |
210 map->set_callee_saved(VMRegImpl::stack2reg( rdxH_off + additional_frame_slots), | |
211 rdx->as_VMReg()->next()); | |
212 map->set_callee_saved(VMRegImpl::stack2reg( rbxH_off + additional_frame_slots), | |
213 rbx->as_VMReg()->next()); | |
214 // rbp location is known implicitly by the frame sender code, needs no oopmap | |
215 map->set_callee_saved(VMRegImpl::stack2reg( rsiH_off + additional_frame_slots), | |
216 rsi->as_VMReg()->next()); | |
217 map->set_callee_saved(VMRegImpl::stack2reg( rdiH_off + additional_frame_slots), | |
218 rdi->as_VMReg()->next()); | |
219 map->set_callee_saved(VMRegImpl::stack2reg( r8H_off + additional_frame_slots), | |
220 r8->as_VMReg()->next()); | |
221 map->set_callee_saved(VMRegImpl::stack2reg( r9H_off + additional_frame_slots), | |
222 r9->as_VMReg()->next()); | |
223 map->set_callee_saved(VMRegImpl::stack2reg( r10H_off + additional_frame_slots), | |
224 r10->as_VMReg()->next()); | |
225 map->set_callee_saved(VMRegImpl::stack2reg( r11H_off + additional_frame_slots), | |
226 r11->as_VMReg()->next()); | |
227 map->set_callee_saved(VMRegImpl::stack2reg( r12H_off + additional_frame_slots), | |
228 r12->as_VMReg()->next()); | |
229 map->set_callee_saved(VMRegImpl::stack2reg( r13H_off + additional_frame_slots), | |
230 r13->as_VMReg()->next()); | |
231 map->set_callee_saved(VMRegImpl::stack2reg( r14H_off + additional_frame_slots), | |
232 r14->as_VMReg()->next()); | |
233 map->set_callee_saved(VMRegImpl::stack2reg( r15H_off + additional_frame_slots), | |
234 r15->as_VMReg()->next()); | |
235 map->set_callee_saved(VMRegImpl::stack2reg(xmm0H_off + additional_frame_slots), | |
236 xmm0->as_VMReg()->next()); | |
237 map->set_callee_saved(VMRegImpl::stack2reg(xmm1H_off + additional_frame_slots), | |
238 xmm1->as_VMReg()->next()); | |
239 map->set_callee_saved(VMRegImpl::stack2reg(xmm2H_off + additional_frame_slots), | |
240 xmm2->as_VMReg()->next()); | |
241 map->set_callee_saved(VMRegImpl::stack2reg(xmm3H_off + additional_frame_slots), | |
242 xmm3->as_VMReg()->next()); | |
243 map->set_callee_saved(VMRegImpl::stack2reg(xmm4H_off + additional_frame_slots), | |
244 xmm4->as_VMReg()->next()); | |
245 map->set_callee_saved(VMRegImpl::stack2reg(xmm5H_off + additional_frame_slots), | |
246 xmm5->as_VMReg()->next()); | |
247 map->set_callee_saved(VMRegImpl::stack2reg(xmm6H_off + additional_frame_slots), | |
248 xmm6->as_VMReg()->next()); | |
249 map->set_callee_saved(VMRegImpl::stack2reg(xmm7H_off + additional_frame_slots), | |
250 xmm7->as_VMReg()->next()); | |
251 map->set_callee_saved(VMRegImpl::stack2reg(xmm8H_off + additional_frame_slots), | |
252 xmm8->as_VMReg()->next()); | |
253 map->set_callee_saved(VMRegImpl::stack2reg(xmm9H_off + additional_frame_slots), | |
254 xmm9->as_VMReg()->next()); | |
255 map->set_callee_saved(VMRegImpl::stack2reg(xmm10H_off + additional_frame_slots), | |
256 xmm10->as_VMReg()->next()); | |
257 map->set_callee_saved(VMRegImpl::stack2reg(xmm11H_off + additional_frame_slots), | |
258 xmm11->as_VMReg()->next()); | |
259 map->set_callee_saved(VMRegImpl::stack2reg(xmm12H_off + additional_frame_slots), | |
260 xmm12->as_VMReg()->next()); | |
261 map->set_callee_saved(VMRegImpl::stack2reg(xmm13H_off + additional_frame_slots), | |
262 xmm13->as_VMReg()->next()); | |
263 map->set_callee_saved(VMRegImpl::stack2reg(xmm14H_off + additional_frame_slots), | |
264 xmm14->as_VMReg()->next()); | |
265 map->set_callee_saved(VMRegImpl::stack2reg(xmm15H_off + additional_frame_slots), | |
266 xmm15->as_VMReg()->next()); | |
267 } | |
268 | |
269 return map; | |
270 } | |
271 | |
272 void RegisterSaver::restore_live_registers(MacroAssembler* masm) { | |
273 if (frame::arg_reg_save_area_bytes != 0) { | |
274 // Pop arg register save area | |
304 | 275 __ addptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 276 } |
277 // Recover CPU state | |
278 __ pop_CPU_state(); | |
279 // Get the rbp described implicitly by the calling convention (no oopMap) | |
304 | 280 __ pop(rbp); |
0 | 281 } |
282 | |
283 void RegisterSaver::restore_result_registers(MacroAssembler* masm) { | |
284 | |
285 // Just restore result register. Only used by deoptimization. By | |
286 // now any callee save register that needs to be restored to a c2 | |
287 // caller of the deoptee has been extracted into the vframeArray | |
288 // and will be stuffed into the c2i adapter we create for later | |
289 // restoration so only result registers need to be restored here. | |
290 | |
291 // Restore fp result register | |
292 __ movdbl(xmm0, Address(rsp, xmm0_offset_in_bytes())); | |
293 // Restore integer result register | |
304 | 294 __ movptr(rax, Address(rsp, rax_offset_in_bytes())); |
295 __ movptr(rdx, Address(rsp, rdx_offset_in_bytes())); | |
296 | |
0 | 297 // Pop all of the register save are off the stack except the return address |
304 | 298 __ addptr(rsp, return_offset_in_bytes()); |
0 | 299 } |
300 | |
301 // The java_calling_convention describes stack locations as ideal slots on | |
302 // a frame with no abi restrictions. Since we must observe abi restrictions | |
303 // (like the placement of the register window) the slots must be biased by | |
304 // the following value. | |
305 static int reg2offset_in(VMReg r) { | |
306 // Account for saved rbp and return address | |
307 // This should really be in_preserve_stack_slots | |
308 return (r->reg2stack() + 4) * VMRegImpl::stack_slot_size; | |
309 } | |
310 | |
311 static int reg2offset_out(VMReg r) { | |
312 return (r->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size; | |
313 } | |
314 | |
315 // --------------------------------------------------------------------------- | |
316 // Read the array of BasicTypes from a signature, and compute where the | |
317 // arguments should go. Values in the VMRegPair regs array refer to 4-byte | |
318 // quantities. Values less than VMRegImpl::stack0 are registers, those above | |
319 // refer to 4-byte stack slots. All stack slots are based off of the stack pointer | |
320 // as framesizes are fixed. | |
321 // VMRegImpl::stack0 refers to the first slot 0(sp). | |
322 // and VMRegImpl::stack0+1 refers to the memory word 4-byes higher. Register | |
323 // up to RegisterImpl::number_of_registers) are the 64-bit | |
324 // integer registers. | |
325 | |
326 // Note: the INPUTS in sig_bt are in units of Java argument words, which are | |
327 // either 32-bit or 64-bit depending on the build. The OUTPUTS are in 32-bit | |
328 // units regardless of build. Of course for i486 there is no 64 bit build | |
329 | |
330 // The Java calling convention is a "shifted" version of the C ABI. | |
331 // By skipping the first C ABI register we can call non-static jni methods | |
332 // with small numbers of arguments without having to shuffle the arguments | |
333 // at all. Since we control the java ABI we ought to at least get some | |
334 // advantage out of it. | |
335 | |
336 int SharedRuntime::java_calling_convention(const BasicType *sig_bt, | |
337 VMRegPair *regs, | |
338 int total_args_passed, | |
339 int is_outgoing) { | |
340 | |
341 // Create the mapping between argument positions and | |
342 // registers. | |
343 static const Register INT_ArgReg[Argument::n_int_register_parameters_j] = { | |
344 j_rarg0, j_rarg1, j_rarg2, j_rarg3, j_rarg4, j_rarg5 | |
345 }; | |
346 static const XMMRegister FP_ArgReg[Argument::n_float_register_parameters_j] = { | |
347 j_farg0, j_farg1, j_farg2, j_farg3, | |
348 j_farg4, j_farg5, j_farg6, j_farg7 | |
349 }; | |
350 | |
351 | |
352 uint int_args = 0; | |
353 uint fp_args = 0; | |
354 uint stk_args = 0; // inc by 2 each time | |
355 | |
356 for (int i = 0; i < total_args_passed; i++) { | |
357 switch (sig_bt[i]) { | |
358 case T_BOOLEAN: | |
359 case T_CHAR: | |
360 case T_BYTE: | |
361 case T_SHORT: | |
362 case T_INT: | |
363 if (int_args < Argument::n_int_register_parameters_j) { | |
364 regs[i].set1(INT_ArgReg[int_args++]->as_VMReg()); | |
365 } else { | |
366 regs[i].set1(VMRegImpl::stack2reg(stk_args)); | |
367 stk_args += 2; | |
368 } | |
369 break; | |
370 case T_VOID: | |
371 // halves of T_LONG or T_DOUBLE | |
372 assert(i != 0 && (sig_bt[i - 1] == T_LONG || sig_bt[i - 1] == T_DOUBLE), "expecting half"); | |
373 regs[i].set_bad(); | |
374 break; | |
375 case T_LONG: | |
376 assert(sig_bt[i + 1] == T_VOID, "expecting half"); | |
377 // fall through | |
378 case T_OBJECT: | |
379 case T_ARRAY: | |
380 case T_ADDRESS: | |
381 if (int_args < Argument::n_int_register_parameters_j) { | |
382 regs[i].set2(INT_ArgReg[int_args++]->as_VMReg()); | |
383 } else { | |
384 regs[i].set2(VMRegImpl::stack2reg(stk_args)); | |
385 stk_args += 2; | |
386 } | |
387 break; | |
388 case T_FLOAT: | |
389 if (fp_args < Argument::n_float_register_parameters_j) { | |
390 regs[i].set1(FP_ArgReg[fp_args++]->as_VMReg()); | |
391 } else { | |
392 regs[i].set1(VMRegImpl::stack2reg(stk_args)); | |
393 stk_args += 2; | |
394 } | |
395 break; | |
396 case T_DOUBLE: | |
397 assert(sig_bt[i + 1] == T_VOID, "expecting half"); | |
398 if (fp_args < Argument::n_float_register_parameters_j) { | |
399 regs[i].set2(FP_ArgReg[fp_args++]->as_VMReg()); | |
400 } else { | |
401 regs[i].set2(VMRegImpl::stack2reg(stk_args)); | |
402 stk_args += 2; | |
403 } | |
404 break; | |
405 default: | |
406 ShouldNotReachHere(); | |
407 break; | |
408 } | |
409 } | |
410 | |
411 return round_to(stk_args, 2); | |
412 } | |
413 | |
414 // Patch the callers callsite with entry to compiled code if it exists. | |
415 static void patch_callers_callsite(MacroAssembler *masm) { | |
416 Label L; | |
417 __ verify_oop(rbx); | |
304 | 418 __ cmpptr(Address(rbx, in_bytes(methodOopDesc::code_offset())), (int32_t)NULL_WORD); |
0 | 419 __ jcc(Assembler::equal, L); |
420 | |
421 // Save the current stack pointer | |
304 | 422 __ mov(r13, rsp); |
0 | 423 // Schedule the branch target address early. |
424 // Call into the VM to patch the caller, then jump to compiled callee | |
425 // rax isn't live so capture return address while we easily can | |
304 | 426 __ movptr(rax, Address(rsp, 0)); |
0 | 427 |
428 // align stack so push_CPU_state doesn't fault | |
304 | 429 __ andptr(rsp, -(StackAlignmentInBytes)); |
0 | 430 __ push_CPU_state(); |
431 | |
432 | |
433 __ verify_oop(rbx); | |
434 // VM needs caller's callsite | |
435 // VM needs target method | |
436 // This needs to be a long call since we will relocate this adapter to | |
437 // the codeBuffer and it may not reach | |
438 | |
439 // Allocate argument register save area | |
440 if (frame::arg_reg_save_area_bytes != 0) { | |
304 | 441 __ subptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 442 } |
304 | 443 __ mov(c_rarg0, rbx); |
444 __ mov(c_rarg1, rax); | |
0 | 445 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::fixup_callers_callsite))); |
446 | |
447 // De-allocate argument register save area | |
448 if (frame::arg_reg_save_area_bytes != 0) { | |
304 | 449 __ addptr(rsp, frame::arg_reg_save_area_bytes); |
0 | 450 } |
451 | |
452 __ pop_CPU_state(); | |
453 // restore sp | |
304 | 454 __ mov(rsp, r13); |
0 | 455 __ bind(L); |
456 } | |
457 | |
458 | |
459 static void gen_c2i_adapter(MacroAssembler *masm, | |
460 int total_args_passed, | |
461 int comp_args_on_stack, | |
462 const BasicType *sig_bt, | |
463 const VMRegPair *regs, | |
464 Label& skip_fixup) { | |
465 // Before we get into the guts of the C2I adapter, see if we should be here | |
466 // at all. We've come from compiled code and are attempting to jump to the | |
467 // interpreter, which means the caller made a static call to get here | |
468 // (vcalls always get a compiled target if there is one). Check for a | |
469 // compiled target. If there is one, we need to patch the caller's call. | |
470 patch_callers_callsite(masm); | |
471 | |
472 __ bind(skip_fixup); | |
473 | |
474 // Since all args are passed on the stack, total_args_passed * | |
475 // Interpreter::stackElementSize is the space we need. Plus 1 because | |
476 // we also account for the return address location since | |
477 // we store it first rather than hold it in rax across all the shuffling | |
478 | |
1506 | 479 int extraspace = (total_args_passed * Interpreter::stackElementSize) + wordSize; |
0 | 480 |
481 // stack is aligned, keep it that way | |
482 extraspace = round_to(extraspace, 2*wordSize); | |
483 | |
484 // Get return address | |
304 | 485 __ pop(rax); |
0 | 486 |
487 // set senderSP value | |
304 | 488 __ mov(r13, rsp); |
489 | |
490 __ subptr(rsp, extraspace); | |
0 | 491 |
492 // Store the return address in the expected location | |
304 | 493 __ movptr(Address(rsp, 0), rax); |
0 | 494 |
495 // Now write the args into the outgoing interpreter space | |
496 for (int i = 0; i < total_args_passed; i++) { | |
497 if (sig_bt[i] == T_VOID) { | |
498 assert(i > 0 && (sig_bt[i-1] == T_LONG || sig_bt[i-1] == T_DOUBLE), "missing half"); | |
499 continue; | |
500 } | |
501 | |
502 // offset to start parameters | |
1506 | 503 int st_off = (total_args_passed - i) * Interpreter::stackElementSize; |
504 int next_off = st_off - Interpreter::stackElementSize; | |
0 | 505 |
506 // Say 4 args: | |
507 // i st_off | |
508 // 0 32 T_LONG | |
509 // 1 24 T_VOID | |
510 // 2 16 T_OBJECT | |
511 // 3 8 T_BOOL | |
512 // - 0 return address | |
513 // | |
514 // However to make thing extra confusing. Because we can fit a long/double in | |
515 // a single slot on a 64 bt vm and it would be silly to break them up, the interpreter | |
516 // leaves one slot empty and only stores to a single slot. In this case the | |
517 // slot that is occupied is the T_VOID slot. See I said it was confusing. | |
518 | |
519 VMReg r_1 = regs[i].first(); | |
520 VMReg r_2 = regs[i].second(); | |
521 if (!r_1->is_valid()) { | |
522 assert(!r_2->is_valid(), ""); | |
523 continue; | |
524 } | |
525 if (r_1->is_stack()) { | |
526 // memory to memory use rax | |
527 int ld_off = r_1->reg2stack() * VMRegImpl::stack_slot_size + extraspace; | |
528 if (!r_2->is_valid()) { | |
529 // sign extend?? | |
530 __ movl(rax, Address(rsp, ld_off)); | |
304 | 531 __ movptr(Address(rsp, st_off), rax); |
0 | 532 |
533 } else { | |
534 | |
535 __ movq(rax, Address(rsp, ld_off)); | |
536 | |
537 // Two VMREgs|OptoRegs can be T_OBJECT, T_ADDRESS, T_DOUBLE, T_LONG | |
538 // T_DOUBLE and T_LONG use two slots in the interpreter | |
539 if ( sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) { | |
540 // ld_off == LSW, ld_off+wordSize == MSW | |
541 // st_off == MSW, next_off == LSW | |
542 __ movq(Address(rsp, next_off), rax); | |
543 #ifdef ASSERT | |
544 // Overwrite the unused slot with known junk | |
545 __ mov64(rax, CONST64(0xdeadffffdeadaaaa)); | |
304 | 546 __ movptr(Address(rsp, st_off), rax); |
0 | 547 #endif /* ASSERT */ |
548 } else { | |
549 __ movq(Address(rsp, st_off), rax); | |
550 } | |
551 } | |
552 } else if (r_1->is_Register()) { | |
553 Register r = r_1->as_Register(); | |
554 if (!r_2->is_valid()) { | |
555 // must be only an int (or less ) so move only 32bits to slot | |
556 // why not sign extend?? | |
557 __ movl(Address(rsp, st_off), r); | |
558 } else { | |
559 // Two VMREgs|OptoRegs can be T_OBJECT, T_ADDRESS, T_DOUBLE, T_LONG | |
560 // T_DOUBLE and T_LONG use two slots in the interpreter | |
561 if ( sig_bt[i] == T_LONG || sig_bt[i] == T_DOUBLE) { | |
562 // long/double in gpr | |
563 #ifdef ASSERT | |
564 // Overwrite the unused slot with known junk | |
565 __ mov64(rax, CONST64(0xdeadffffdeadaaab)); | |
304 | 566 __ movptr(Address(rsp, st_off), rax); |
0 | 567 #endif /* ASSERT */ |
568 __ movq(Address(rsp, next_off), r); | |
569 } else { | |
304 | 570 __ movptr(Address(rsp, st_off), r); |
0 | 571 } |
572 } | |
573 } else { | |
574 assert(r_1->is_XMMRegister(), ""); | |
575 if (!r_2->is_valid()) { | |
576 // only a float use just part of the slot | |
577 __ movflt(Address(rsp, st_off), r_1->as_XMMRegister()); | |
578 } else { | |
579 #ifdef ASSERT | |
580 // Overwrite the unused slot with known junk | |
581 __ mov64(rax, CONST64(0xdeadffffdeadaaac)); | |
304 | 582 __ movptr(Address(rsp, st_off), rax); |
0 | 583 #endif /* ASSERT */ |
584 __ movdbl(Address(rsp, next_off), r_1->as_XMMRegister()); | |
585 } | |
586 } | |
587 } | |
588 | |
589 // Schedule the branch target address early. | |
304 | 590 __ movptr(rcx, Address(rbx, in_bytes(methodOopDesc::interpreter_entry_offset()))); |
0 | 591 __ jmp(rcx); |
592 } | |
593 | |
594 static void gen_i2c_adapter(MacroAssembler *masm, | |
595 int total_args_passed, | |
596 int comp_args_on_stack, | |
597 const BasicType *sig_bt, | |
598 const VMRegPair *regs) { | |
599 | |
600 // Note: r13 contains the senderSP on entry. We must preserve it since | |
601 // we may do a i2c -> c2i transition if we lose a race where compiled | |
602 // code goes non-entrant while we get args ready. | |
603 // In addition we use r13 to locate all the interpreter args as | |
604 // we must align the stack to 16 bytes on an i2c entry else we | |
605 // lose alignment we expect in all compiled code and register | |
606 // save code can segv when fxsave instructions find improperly | |
607 // aligned stack pointer. | |
608 | |
2245
638119ce7cfd
7009309: JSR 292: compiler/6991596/Test6991596.java crashes on fastdebug JDK7/b122
twisti
parents:
2177
diff
changeset
|
609 // Pick up the return address |
304 | 610 __ movptr(rax, Address(rsp, 0)); |
0 | 611 |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
612 // Must preserve original SP for loading incoming arguments because |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
613 // we need to align the outgoing SP for compiled code. |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
614 __ movptr(r11, rsp); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
615 |
0 | 616 // Cut-out for having no stack args. Since up to 2 int/oop args are passed |
617 // in registers, we will occasionally have no stack args. | |
618 int comp_words_on_stack = 0; | |
619 if (comp_args_on_stack) { | |
620 // Sig words on the stack are greater-than VMRegImpl::stack0. Those in | |
621 // registers are below. By subtracting stack0, we either get a negative | |
622 // number (all values in registers) or the maximum stack slot accessed. | |
623 | |
624 // Convert 4-byte c2 stack slots to words. | |
625 comp_words_on_stack = round_to(comp_args_on_stack*VMRegImpl::stack_slot_size, wordSize)>>LogBytesPerWord; | |
626 // Round up to miminum stack alignment, in wordSize | |
627 comp_words_on_stack = round_to(comp_words_on_stack, 2); | |
304 | 628 __ subptr(rsp, comp_words_on_stack * wordSize); |
0 | 629 } |
630 | |
631 | |
632 // Ensure compiled code always sees stack at proper alignment | |
304 | 633 __ andptr(rsp, -16); |
0 | 634 |
635 // push the return address and misalign the stack that youngest frame always sees | |
636 // as far as the placement of the call instruction | |
304 | 637 __ push(rax); |
0 | 638 |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
639 // Put saved SP in another register |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
640 const Register saved_sp = rax; |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
641 __ movptr(saved_sp, r11); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
642 |
0 | 643 // Will jump to the compiled code just as if compiled code was doing it. |
644 // Pre-load the register-jump target early, to schedule it better. | |
304 | 645 __ movptr(r11, Address(rbx, in_bytes(methodOopDesc::from_compiled_offset()))); |
0 | 646 |
647 // Now generate the shuffle code. Pick up all register args and move the | |
648 // rest through the floating point stack top. | |
649 for (int i = 0; i < total_args_passed; i++) { | |
650 if (sig_bt[i] == T_VOID) { | |
651 // Longs and doubles are passed in native word order, but misaligned | |
652 // in the 32-bit build. | |
653 assert(i > 0 && (sig_bt[i-1] == T_LONG || sig_bt[i-1] == T_DOUBLE), "missing half"); | |
654 continue; | |
655 } | |
656 | |
657 // Pick up 0, 1 or 2 words from SP+offset. | |
658 | |
659 assert(!regs[i].second()->is_valid() || regs[i].first()->next() == regs[i].second(), | |
660 "scrambled load targets?"); | |
661 // Load in argument order going down. | |
1506 | 662 int ld_off = (total_args_passed - i)*Interpreter::stackElementSize; |
0 | 663 // Point to interpreter value (vs. tag) |
1506 | 664 int next_off = ld_off - Interpreter::stackElementSize; |
0 | 665 // |
666 // | |
667 // | |
668 VMReg r_1 = regs[i].first(); | |
669 VMReg r_2 = regs[i].second(); | |
670 if (!r_1->is_valid()) { | |
671 assert(!r_2->is_valid(), ""); | |
672 continue; | |
673 } | |
674 if (r_1->is_stack()) { | |
675 // Convert stack slot to an SP offset (+ wordSize to account for return address ) | |
676 int st_off = regs[i].first()->reg2stack()*VMRegImpl::stack_slot_size + wordSize; | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
677 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
678 // We can use r13 as a temp here because compiled code doesn't need r13 as an input |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
679 // and if we end up going thru a c2i because of a miss a reasonable value of r13 |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
680 // will be generated. |
0 | 681 if (!r_2->is_valid()) { |
682 // sign extend??? | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
683 __ movl(r13, Address(saved_sp, ld_off)); |
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
684 __ movptr(Address(rsp, st_off), r13); |
0 | 685 } else { |
686 // | |
687 // We are using two optoregs. This can be either T_OBJECT, T_ADDRESS, T_LONG, or T_DOUBLE | |
688 // the interpreter allocates two slots but only uses one for thr T_LONG or T_DOUBLE case | |
689 // So we must adjust where to pick up the data to match the interpreter. | |
690 // | |
691 // Interpreter local[n] == MSW, local[n+1] == LSW however locals | |
692 // are accessed as negative so LSW is at LOW address | |
693 | |
694 // ld_off is MSW so get LSW | |
695 const int offset = (sig_bt[i]==T_LONG||sig_bt[i]==T_DOUBLE)? | |
696 next_off : ld_off; | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
697 __ movq(r13, Address(saved_sp, offset)); |
0 | 698 // st_off is LSW (i.e. reg.first()) |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
699 __ movq(Address(rsp, st_off), r13); |
0 | 700 } |
701 } else if (r_1->is_Register()) { // Register argument | |
702 Register r = r_1->as_Register(); | |
703 assert(r != rax, "must be different"); | |
704 if (r_2->is_valid()) { | |
705 // | |
706 // We are using two VMRegs. This can be either T_OBJECT, T_ADDRESS, T_LONG, or T_DOUBLE | |
707 // the interpreter allocates two slots but only uses one for thr T_LONG or T_DOUBLE case | |
708 // So we must adjust where to pick up the data to match the interpreter. | |
709 | |
710 const int offset = (sig_bt[i]==T_LONG||sig_bt[i]==T_DOUBLE)? | |
711 next_off : ld_off; | |
712 | |
713 // this can be a misaligned move | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
714 __ movq(r, Address(saved_sp, offset)); |
0 | 715 } else { |
716 // sign extend and use a full word? | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
717 __ movl(r, Address(saved_sp, ld_off)); |
0 | 718 } |
719 } else { | |
720 if (!r_2->is_valid()) { | |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
721 __ movflt(r_1->as_XMMRegister(), Address(saved_sp, ld_off)); |
0 | 722 } else { |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
723 __ movdbl(r_1->as_XMMRegister(), Address(saved_sp, next_off)); |
0 | 724 } |
725 } | |
726 } | |
727 | |
728 // 6243940 We might end up in handle_wrong_method if | |
729 // the callee is deoptimized as we race thru here. If that | |
730 // happens we don't want to take a safepoint because the | |
731 // caller frame will look interpreted and arguments are now | |
732 // "compiled" so it is much better to make this transition | |
733 // invisible to the stack walking code. Unfortunately if | |
734 // we try and find the callee by normal means a safepoint | |
735 // is possible. So we stash the desired callee in the thread | |
736 // and the vm will find there should this case occur. | |
737 | |
304 | 738 __ movptr(Address(r15_thread, JavaThread::callee_target_offset()), rbx); |
0 | 739 |
740 // put methodOop where a c2i would expect should we end up there | |
741 // only needed becaus eof c2 resolve stubs return methodOop as a result in | |
742 // rax | |
304 | 743 __ mov(rax, rbx); |
0 | 744 __ jmp(r11); |
745 } | |
746 | |
747 // --------------------------------------------------------------- | |
748 AdapterHandlerEntry* SharedRuntime::generate_i2c2i_adapters(MacroAssembler *masm, | |
749 int total_args_passed, | |
750 int comp_args_on_stack, | |
751 const BasicType *sig_bt, | |
1187
cf0685d550f1
6911204: generated adapters with large signatures can fill up the code cache
never
parents:
1135
diff
changeset
|
752 const VMRegPair *regs, |
cf0685d550f1
6911204: generated adapters with large signatures can fill up the code cache
never
parents:
1135
diff
changeset
|
753 AdapterFingerPrint* fingerprint) { |
0 | 754 address i2c_entry = __ pc(); |
755 | |
756 gen_i2c_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs); | |
757 | |
758 // ------------------------------------------------------------------------- | |
759 // Generate a C2I adapter. On entry we know rbx holds the methodOop during calls | |
760 // to the interpreter. The args start out packed in the compiled layout. They | |
761 // need to be unpacked into the interpreter layout. This will almost always | |
762 // require some stack space. We grow the current (compiled) stack, then repack | |
763 // the args. We finally end in a jump to the generic interpreter entry point. | |
764 // On exit from the interpreter, the interpreter will restore our SP (lest the | |
765 // compiled code, which relys solely on SP and not RBP, get sick). | |
766 | |
767 address c2i_unverified_entry = __ pc(); | |
768 Label skip_fixup; | |
769 Label ok; | |
770 | |
771 Register holder = rax; | |
772 Register receiver = j_rarg0; | |
773 Register temp = rbx; | |
774 | |
775 { | |
776 __ verify_oop(holder); | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
777 __ load_klass(temp, receiver); |
0 | 778 __ verify_oop(temp); |
779 | |
304 | 780 __ cmpptr(temp, Address(holder, compiledICHolderOopDesc::holder_klass_offset())); |
781 __ movptr(rbx, Address(holder, compiledICHolderOopDesc::holder_method_offset())); | |
0 | 782 __ jcc(Assembler::equal, ok); |
783 __ jump(RuntimeAddress(SharedRuntime::get_ic_miss_stub())); | |
784 | |
785 __ bind(ok); | |
786 // Method might have been compiled since the call site was patched to | |
787 // interpreted if that is the case treat it as a miss so we can get | |
788 // the call site corrected. | |
304 | 789 __ cmpptr(Address(rbx, in_bytes(methodOopDesc::code_offset())), (int32_t)NULL_WORD); |
0 | 790 __ jcc(Assembler::equal, skip_fixup); |
791 __ jump(RuntimeAddress(SharedRuntime::get_ic_miss_stub())); | |
792 } | |
793 | |
794 address c2i_entry = __ pc(); | |
795 | |
796 gen_c2i_adapter(masm, total_args_passed, comp_args_on_stack, sig_bt, regs, skip_fixup); | |
797 | |
798 __ flush(); | |
1187
cf0685d550f1
6911204: generated adapters with large signatures can fill up the code cache
never
parents:
1135
diff
changeset
|
799 return AdapterHandlerLibrary::new_entry(fingerprint, i2c_entry, c2i_entry, c2i_unverified_entry); |
0 | 800 } |
801 | |
802 int SharedRuntime::c_calling_convention(const BasicType *sig_bt, | |
803 VMRegPair *regs, | |
804 int total_args_passed) { | |
805 // We return the amount of VMRegImpl stack slots we need to reserve for all | |
806 // the arguments NOT counting out_preserve_stack_slots. | |
807 | |
808 // NOTE: These arrays will have to change when c1 is ported | |
809 #ifdef _WIN64 | |
810 static const Register INT_ArgReg[Argument::n_int_register_parameters_c] = { | |
811 c_rarg0, c_rarg1, c_rarg2, c_rarg3 | |
812 }; | |
813 static const XMMRegister FP_ArgReg[Argument::n_float_register_parameters_c] = { | |
814 c_farg0, c_farg1, c_farg2, c_farg3 | |
815 }; | |
816 #else | |
817 static const Register INT_ArgReg[Argument::n_int_register_parameters_c] = { | |
818 c_rarg0, c_rarg1, c_rarg2, c_rarg3, c_rarg4, c_rarg5 | |
819 }; | |
820 static const XMMRegister FP_ArgReg[Argument::n_float_register_parameters_c] = { | |
821 c_farg0, c_farg1, c_farg2, c_farg3, | |
822 c_farg4, c_farg5, c_farg6, c_farg7 | |
823 }; | |
824 #endif // _WIN64 | |
825 | |
826 | |
827 uint int_args = 0; | |
828 uint fp_args = 0; | |
829 uint stk_args = 0; // inc by 2 each time | |
830 | |
831 for (int i = 0; i < total_args_passed; i++) { | |
832 switch (sig_bt[i]) { | |
833 case T_BOOLEAN: | |
834 case T_CHAR: | |
835 case T_BYTE: | |
836 case T_SHORT: | |
837 case T_INT: | |
838 if (int_args < Argument::n_int_register_parameters_c) { | |
839 regs[i].set1(INT_ArgReg[int_args++]->as_VMReg()); | |
840 #ifdef _WIN64 | |
841 fp_args++; | |
842 // Allocate slots for callee to stuff register args the stack. | |
843 stk_args += 2; | |
844 #endif | |
845 } else { | |
846 regs[i].set1(VMRegImpl::stack2reg(stk_args)); | |
847 stk_args += 2; | |
848 } | |
849 break; | |
850 case T_LONG: | |
851 assert(sig_bt[i + 1] == T_VOID, "expecting half"); | |
852 // fall through | |
853 case T_OBJECT: | |
854 case T_ARRAY: | |
855 case T_ADDRESS: | |
856 if (int_args < Argument::n_int_register_parameters_c) { | |
857 regs[i].set2(INT_ArgReg[int_args++]->as_VMReg()); | |
858 #ifdef _WIN64 | |
859 fp_args++; | |
860 stk_args += 2; | |
861 #endif | |
862 } else { | |
863 regs[i].set2(VMRegImpl::stack2reg(stk_args)); | |
864 stk_args += 2; | |
865 } | |
866 break; | |
867 case T_FLOAT: | |
868 if (fp_args < Argument::n_float_register_parameters_c) { | |
869 regs[i].set1(FP_ArgReg[fp_args++]->as_VMReg()); | |
870 #ifdef _WIN64 | |
871 int_args++; | |
872 // Allocate slots for callee to stuff register args the stack. | |
873 stk_args += 2; | |
874 #endif | |
875 } else { | |
876 regs[i].set1(VMRegImpl::stack2reg(stk_args)); | |
877 stk_args += 2; | |
878 } | |
879 break; | |
880 case T_DOUBLE: | |
881 assert(sig_bt[i + 1] == T_VOID, "expecting half"); | |
882 if (fp_args < Argument::n_float_register_parameters_c) { | |
883 regs[i].set2(FP_ArgReg[fp_args++]->as_VMReg()); | |
884 #ifdef _WIN64 | |
885 int_args++; | |
886 // Allocate slots for callee to stuff register args the stack. | |
887 stk_args += 2; | |
888 #endif | |
889 } else { | |
890 regs[i].set2(VMRegImpl::stack2reg(stk_args)); | |
891 stk_args += 2; | |
892 } | |
893 break; | |
894 case T_VOID: // Halves of longs and doubles | |
895 assert(i != 0 && (sig_bt[i - 1] == T_LONG || sig_bt[i - 1] == T_DOUBLE), "expecting half"); | |
896 regs[i].set_bad(); | |
897 break; | |
898 default: | |
899 ShouldNotReachHere(); | |
900 break; | |
901 } | |
902 } | |
903 #ifdef _WIN64 | |
904 // windows abi requires that we always allocate enough stack space | |
905 // for 4 64bit registers to be stored down. | |
906 if (stk_args < 8) { | |
907 stk_args = 8; | |
908 } | |
909 #endif // _WIN64 | |
910 | |
911 return stk_args; | |
912 } | |
913 | |
914 // On 64 bit we will store integer like items to the stack as | |
915 // 64 bits items (sparc abi) even though java would only store | |
916 // 32bits for a parameter. On 32bit it will simply be 32 bits | |
917 // So this routine will do 32->32 on 32bit and 32->64 on 64bit | |
918 static void move32_64(MacroAssembler* masm, VMRegPair src, VMRegPair dst) { | |
919 if (src.first()->is_stack()) { | |
920 if (dst.first()->is_stack()) { | |
921 // stack to stack | |
922 __ movslq(rax, Address(rbp, reg2offset_in(src.first()))); | |
923 __ movq(Address(rsp, reg2offset_out(dst.first())), rax); | |
924 } else { | |
925 // stack to reg | |
926 __ movslq(dst.first()->as_Register(), Address(rbp, reg2offset_in(src.first()))); | |
927 } | |
928 } else if (dst.first()->is_stack()) { | |
929 // reg to stack | |
930 // Do we really have to sign extend??? | |
931 // __ movslq(src.first()->as_Register(), src.first()->as_Register()); | |
932 __ movq(Address(rsp, reg2offset_out(dst.first())), src.first()->as_Register()); | |
933 } else { | |
934 // Do we really have to sign extend??? | |
935 // __ movslq(dst.first()->as_Register(), src.first()->as_Register()); | |
936 if (dst.first() != src.first()) { | |
937 __ movq(dst.first()->as_Register(), src.first()->as_Register()); | |
938 } | |
939 } | |
940 } | |
941 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
942 static void move_ptr(MacroAssembler* masm, VMRegPair src, VMRegPair dst) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
943 if (src.first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
944 if (dst.first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
945 // stack to stack |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
946 __ movq(rax, Address(rbp, reg2offset_in(src.first()))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
947 __ movq(Address(rsp, reg2offset_out(dst.first())), rax); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
948 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
949 // stack to reg |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
950 __ movq(dst.first()->as_Register(), Address(rbp, reg2offset_in(src.first()))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
951 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
952 } else if (dst.first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
953 // reg to stack |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
954 __ movq(Address(rsp, reg2offset_out(dst.first())), src.first()->as_Register()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
955 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
956 if (dst.first() != src.first()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
957 __ movq(dst.first()->as_Register(), src.first()->as_Register()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
958 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
959 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
960 } |
0 | 961 |
962 // An oop arg. Must pass a handle not the oop itself | |
963 static void object_move(MacroAssembler* masm, | |
964 OopMap* map, | |
965 int oop_handle_offset, | |
966 int framesize_in_slots, | |
967 VMRegPair src, | |
968 VMRegPair dst, | |
969 bool is_receiver, | |
970 int* receiver_offset) { | |
971 | |
972 // must pass a handle. First figure out the location we use as a handle | |
973 | |
974 Register rHandle = dst.first()->is_stack() ? rax : dst.first()->as_Register(); | |
975 | |
976 // See if oop is NULL if it is we need no handle | |
977 | |
978 if (src.first()->is_stack()) { | |
979 | |
980 // Oop is already on the stack as an argument | |
981 int offset_in_older_frame = src.first()->reg2stack() + SharedRuntime::out_preserve_stack_slots(); | |
982 map->set_oop(VMRegImpl::stack2reg(offset_in_older_frame + framesize_in_slots)); | |
983 if (is_receiver) { | |
984 *receiver_offset = (offset_in_older_frame + framesize_in_slots) * VMRegImpl::stack_slot_size; | |
985 } | |
986 | |
304 | 987 __ cmpptr(Address(rbp, reg2offset_in(src.first())), (int32_t)NULL_WORD); |
988 __ lea(rHandle, Address(rbp, reg2offset_in(src.first()))); | |
0 | 989 // conditionally move a NULL |
304 | 990 __ cmovptr(Assembler::equal, rHandle, Address(rbp, reg2offset_in(src.first()))); |
0 | 991 } else { |
992 | |
993 // Oop is in an a register we must store it to the space we reserve | |
994 // on the stack for oop_handles and pass a handle if oop is non-NULL | |
995 | |
996 const Register rOop = src.first()->as_Register(); | |
997 int oop_slot; | |
998 if (rOop == j_rarg0) | |
999 oop_slot = 0; | |
1000 else if (rOop == j_rarg1) | |
1001 oop_slot = 1; | |
1002 else if (rOop == j_rarg2) | |
1003 oop_slot = 2; | |
1004 else if (rOop == j_rarg3) | |
1005 oop_slot = 3; | |
1006 else if (rOop == j_rarg4) | |
1007 oop_slot = 4; | |
1008 else { | |
1009 assert(rOop == j_rarg5, "wrong register"); | |
1010 oop_slot = 5; | |
1011 } | |
1012 | |
1013 oop_slot = oop_slot * VMRegImpl::slots_per_word + oop_handle_offset; | |
1014 int offset = oop_slot*VMRegImpl::stack_slot_size; | |
1015 | |
1016 map->set_oop(VMRegImpl::stack2reg(oop_slot)); | |
1017 // Store oop in handle area, may be NULL | |
304 | 1018 __ movptr(Address(rsp, offset), rOop); |
0 | 1019 if (is_receiver) { |
1020 *receiver_offset = offset; | |
1021 } | |
1022 | |
304 | 1023 __ cmpptr(rOop, (int32_t)NULL_WORD); |
1024 __ lea(rHandle, Address(rsp, offset)); | |
0 | 1025 // conditionally move a NULL from the handle area where it was just stored |
304 | 1026 __ cmovptr(Assembler::equal, rHandle, Address(rsp, offset)); |
0 | 1027 } |
1028 | |
1029 // If arg is on the stack then place it otherwise it is already in correct reg. | |
1030 if (dst.first()->is_stack()) { | |
304 | 1031 __ movptr(Address(rsp, reg2offset_out(dst.first())), rHandle); |
0 | 1032 } |
1033 } | |
1034 | |
1035 // A float arg may have to do float reg int reg conversion | |
1036 static void float_move(MacroAssembler* masm, VMRegPair src, VMRegPair dst) { | |
1037 assert(!src.second()->is_valid() && !dst.second()->is_valid(), "bad float_move"); | |
1038 | |
1039 // The calling conventions assures us that each VMregpair is either | |
1040 // all really one physical register or adjacent stack slots. | |
1041 // This greatly simplifies the cases here compared to sparc. | |
1042 | |
1043 if (src.first()->is_stack()) { | |
1044 if (dst.first()->is_stack()) { | |
1045 __ movl(rax, Address(rbp, reg2offset_in(src.first()))); | |
304 | 1046 __ movptr(Address(rsp, reg2offset_out(dst.first())), rax); |
0 | 1047 } else { |
1048 // stack to reg | |
1049 assert(dst.first()->is_XMMRegister(), "only expect xmm registers as parameters"); | |
1050 __ movflt(dst.first()->as_XMMRegister(), Address(rbp, reg2offset_in(src.first()))); | |
1051 } | |
1052 } else if (dst.first()->is_stack()) { | |
1053 // reg to stack | |
1054 assert(src.first()->is_XMMRegister(), "only expect xmm registers as parameters"); | |
1055 __ movflt(Address(rsp, reg2offset_out(dst.first())), src.first()->as_XMMRegister()); | |
1056 } else { | |
1057 // reg to reg | |
1058 // In theory these overlap but the ordering is such that this is likely a nop | |
1059 if ( src.first() != dst.first()) { | |
1060 __ movdbl(dst.first()->as_XMMRegister(), src.first()->as_XMMRegister()); | |
1061 } | |
1062 } | |
1063 } | |
1064 | |
1065 // A long move | |
1066 static void long_move(MacroAssembler* masm, VMRegPair src, VMRegPair dst) { | |
1067 | |
1068 // The calling conventions assures us that each VMregpair is either | |
1069 // all really one physical register or adjacent stack slots. | |
1070 // This greatly simplifies the cases here compared to sparc. | |
1071 | |
1072 if (src.is_single_phys_reg() ) { | |
1073 if (dst.is_single_phys_reg()) { | |
1074 if (dst.first() != src.first()) { | |
304 | 1075 __ mov(dst.first()->as_Register(), src.first()->as_Register()); |
0 | 1076 } |
1077 } else { | |
1078 assert(dst.is_single_reg(), "not a stack pair"); | |
1079 __ movq(Address(rsp, reg2offset_out(dst.first())), src.first()->as_Register()); | |
1080 } | |
1081 } else if (dst.is_single_phys_reg()) { | |
1082 assert(src.is_single_reg(), "not a stack pair"); | |
1083 __ movq(dst.first()->as_Register(), Address(rbp, reg2offset_out(src.first()))); | |
1084 } else { | |
1085 assert(src.is_single_reg() && dst.is_single_reg(), "not stack pairs"); | |
1086 __ movq(rax, Address(rbp, reg2offset_in(src.first()))); | |
1087 __ movq(Address(rsp, reg2offset_out(dst.first())), rax); | |
1088 } | |
1089 } | |
1090 | |
1091 // A double move | |
1092 static void double_move(MacroAssembler* masm, VMRegPair src, VMRegPair dst) { | |
1093 | |
1094 // The calling conventions assures us that each VMregpair is either | |
1095 // all really one physical register or adjacent stack slots. | |
1096 // This greatly simplifies the cases here compared to sparc. | |
1097 | |
1098 if (src.is_single_phys_reg() ) { | |
1099 if (dst.is_single_phys_reg()) { | |
1100 // In theory these overlap but the ordering is such that this is likely a nop | |
1101 if ( src.first() != dst.first()) { | |
1102 __ movdbl(dst.first()->as_XMMRegister(), src.first()->as_XMMRegister()); | |
1103 } | |
1104 } else { | |
1105 assert(dst.is_single_reg(), "not a stack pair"); | |
1106 __ movdbl(Address(rsp, reg2offset_out(dst.first())), src.first()->as_XMMRegister()); | |
1107 } | |
1108 } else if (dst.is_single_phys_reg()) { | |
1109 assert(src.is_single_reg(), "not a stack pair"); | |
1110 __ movdbl(dst.first()->as_XMMRegister(), Address(rbp, reg2offset_out(src.first()))); | |
1111 } else { | |
1112 assert(src.is_single_reg() && dst.is_single_reg(), "not stack pairs"); | |
1113 __ movq(rax, Address(rbp, reg2offset_in(src.first()))); | |
1114 __ movq(Address(rsp, reg2offset_out(dst.first())), rax); | |
1115 } | |
1116 } | |
1117 | |
1118 | |
1119 void SharedRuntime::save_native_result(MacroAssembler *masm, BasicType ret_type, int frame_slots) { | |
1120 // We always ignore the frame_slots arg and just use the space just below frame pointer | |
1121 // which by this time is free to use | |
1122 switch (ret_type) { | |
1123 case T_FLOAT: | |
1124 __ movflt(Address(rbp, -wordSize), xmm0); | |
1125 break; | |
1126 case T_DOUBLE: | |
1127 __ movdbl(Address(rbp, -wordSize), xmm0); | |
1128 break; | |
1129 case T_VOID: break; | |
1130 default: { | |
304 | 1131 __ movptr(Address(rbp, -wordSize), rax); |
0 | 1132 } |
1133 } | |
1134 } | |
1135 | |
1136 void SharedRuntime::restore_native_result(MacroAssembler *masm, BasicType ret_type, int frame_slots) { | |
1137 // We always ignore the frame_slots arg and just use the space just below frame pointer | |
1138 // which by this time is free to use | |
1139 switch (ret_type) { | |
1140 case T_FLOAT: | |
1141 __ movflt(xmm0, Address(rbp, -wordSize)); | |
1142 break; | |
1143 case T_DOUBLE: | |
1144 __ movdbl(xmm0, Address(rbp, -wordSize)); | |
1145 break; | |
1146 case T_VOID: break; | |
1147 default: { | |
304 | 1148 __ movptr(rax, Address(rbp, -wordSize)); |
0 | 1149 } |
1150 } | |
1151 } | |
1152 | |
1153 static void save_args(MacroAssembler *masm, int arg_count, int first_arg, VMRegPair *args) { | |
1154 for ( int i = first_arg ; i < arg_count ; i++ ) { | |
1155 if (args[i].first()->is_Register()) { | |
304 | 1156 __ push(args[i].first()->as_Register()); |
0 | 1157 } else if (args[i].first()->is_XMMRegister()) { |
304 | 1158 __ subptr(rsp, 2*wordSize); |
0 | 1159 __ movdbl(Address(rsp, 0), args[i].first()->as_XMMRegister()); |
1160 } | |
1161 } | |
1162 } | |
1163 | |
1164 static void restore_args(MacroAssembler *masm, int arg_count, int first_arg, VMRegPair *args) { | |
1165 for ( int i = arg_count - 1 ; i >= first_arg ; i-- ) { | |
1166 if (args[i].first()->is_Register()) { | |
304 | 1167 __ pop(args[i].first()->as_Register()); |
0 | 1168 } else if (args[i].first()->is_XMMRegister()) { |
1169 __ movdbl(args[i].first()->as_XMMRegister(), Address(rsp, 0)); | |
304 | 1170 __ addptr(rsp, 2*wordSize); |
0 | 1171 } |
1172 } | |
1173 } | |
1174 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1175 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1176 static void save_or_restore_arguments(MacroAssembler* masm, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1177 const int stack_slots, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1178 const int total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1179 const int arg_save_area, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1180 OopMap* map, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1181 VMRegPair* in_regs, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1182 BasicType* in_sig_bt) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1183 // if map is non-NULL then the code should store the values, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1184 // otherwise it should load them. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1185 int handle_index = 0; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1186 // Save down double word first |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1187 for ( int i = 0; i < total_in_args; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1188 if (in_regs[i].first()->is_XMMRegister() && in_sig_bt[i] == T_DOUBLE) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1189 int slot = handle_index * VMRegImpl::slots_per_word + arg_save_area; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1190 int offset = slot * VMRegImpl::stack_slot_size; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1191 handle_index += 2; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1192 assert(handle_index <= stack_slots, "overflow"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1193 if (map != NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1194 __ movdbl(Address(rsp, offset), in_regs[i].first()->as_XMMRegister()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1195 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1196 __ movdbl(in_regs[i].first()->as_XMMRegister(), Address(rsp, offset)); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1197 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1198 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1199 if (in_regs[i].first()->is_Register() && |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1200 (in_sig_bt[i] == T_LONG || in_sig_bt[i] == T_ARRAY)) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1201 int slot = handle_index * VMRegImpl::slots_per_word + arg_save_area; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1202 int offset = slot * VMRegImpl::stack_slot_size; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1203 handle_index += 2; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1204 assert(handle_index <= stack_slots, "overflow"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1205 if (map != NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1206 __ movq(Address(rsp, offset), in_regs[i].first()->as_Register()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1207 if (in_sig_bt[i] == T_ARRAY) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1208 map->set_oop(VMRegImpl::stack2reg(slot));; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1209 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1210 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1211 __ movq(in_regs[i].first()->as_Register(), Address(rsp, offset)); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1212 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1213 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1214 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1215 // Save or restore single word registers |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1216 for ( int i = 0; i < total_in_args; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1217 if (in_regs[i].first()->is_Register()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1218 int slot = handle_index++ * VMRegImpl::slots_per_word + arg_save_area; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1219 int offset = slot * VMRegImpl::stack_slot_size; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1220 assert(handle_index <= stack_slots, "overflow"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1221 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1222 // Value is in an input register pass we must flush it to the stack |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1223 const Register reg = in_regs[i].first()->as_Register(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1224 switch (in_sig_bt[i]) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1225 case T_BOOLEAN: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1226 case T_CHAR: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1227 case T_BYTE: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1228 case T_SHORT: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1229 case T_INT: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1230 if (map != NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1231 __ movl(Address(rsp, offset), reg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1232 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1233 __ movl(reg, Address(rsp, offset)); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1234 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1235 break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1236 case T_ARRAY: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1237 case T_LONG: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1238 // handled above |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1239 break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1240 case T_OBJECT: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1241 default: ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1242 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1243 } else if (in_regs[i].first()->is_XMMRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1244 if (in_sig_bt[i] == T_FLOAT) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1245 int slot = handle_index++ * VMRegImpl::slots_per_word + arg_save_area; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1246 int offset = slot * VMRegImpl::stack_slot_size; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1247 assert(handle_index <= stack_slots, "overflow"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1248 if (map != NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1249 __ movflt(Address(rsp, offset), in_regs[i].first()->as_XMMRegister()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1250 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1251 __ movflt(in_regs[i].first()->as_XMMRegister(), Address(rsp, offset)); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1252 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1253 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1254 } else if (in_regs[i].first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1255 if (in_sig_bt[i] == T_ARRAY && map != NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1256 int offset_in_older_frame = in_regs[i].first()->reg2stack() + SharedRuntime::out_preserve_stack_slots(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1257 map->set_oop(VMRegImpl::stack2reg(offset_in_older_frame + stack_slots)); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1258 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1259 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1260 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1261 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1262 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1263 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1264 // Check GC_locker::needs_gc and enter the runtime if it's true. This |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1265 // keeps a new JNI critical region from starting until a GC has been |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1266 // forced. Save down any oops in registers and describe them in an |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1267 // OopMap. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1268 static void check_needs_gc_for_critical_native(MacroAssembler* masm, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1269 int stack_slots, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1270 int total_c_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1271 int total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1272 int arg_save_area, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1273 OopMapSet* oop_maps, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1274 VMRegPair* in_regs, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1275 BasicType* in_sig_bt) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1276 __ block_comment("check GC_locker::needs_gc"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1277 Label cont; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1278 __ cmp8(ExternalAddress((address)GC_locker::needs_gc_address()), false); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1279 __ jcc(Assembler::equal, cont); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1280 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1281 // Save down any incoming oops and call into the runtime to halt for a GC |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1282 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1283 OopMap* map = new OopMap(stack_slots * 2, 0 /* arg_slots*/); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1284 save_or_restore_arguments(masm, stack_slots, total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1285 arg_save_area, map, in_regs, in_sig_bt); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1286 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1287 address the_pc = __ pc(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1288 oop_maps->add_gc_map( __ offset(), map); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1289 __ set_last_Java_frame(rsp, noreg, the_pc); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1290 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1291 __ block_comment("block_for_jni_critical"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1292 __ movptr(c_rarg0, r15_thread); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1293 __ mov(r12, rsp); // remember sp |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1294 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1295 __ andptr(rsp, -16); // align stack as required by ABI |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1296 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::block_for_jni_critical))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1297 __ mov(rsp, r12); // restore sp |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1298 __ reinit_heapbase(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1299 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1300 __ reset_last_Java_frame(false, true); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1301 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1302 save_or_restore_arguments(masm, stack_slots, total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1303 arg_save_area, NULL, in_regs, in_sig_bt); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1304 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1305 __ bind(cont); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1306 #ifdef ASSERT |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1307 if (StressCriticalJNINatives) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1308 // Stress register saving |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1309 OopMap* map = new OopMap(stack_slots * 2, 0 /* arg_slots*/); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1310 save_or_restore_arguments(masm, stack_slots, total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1311 arg_save_area, map, in_regs, in_sig_bt); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1312 // Destroy argument registers |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1313 for (int i = 0; i < total_in_args - 1; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1314 if (in_regs[i].first()->is_Register()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1315 const Register reg = in_regs[i].first()->as_Register(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1316 __ xorptr(reg, reg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1317 } else if (in_regs[i].first()->is_XMMRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1318 __ xorpd(in_regs[i].first()->as_XMMRegister(), in_regs[i].first()->as_XMMRegister()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1319 } else if (in_regs[i].first()->is_FloatRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1320 ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1321 } else if (in_regs[i].first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1322 // Nothing to do |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1323 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1324 ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1325 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1326 if (in_sig_bt[i] == T_LONG || in_sig_bt[i] == T_DOUBLE) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1327 i++; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1328 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1329 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1330 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1331 save_or_restore_arguments(masm, stack_slots, total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1332 arg_save_area, NULL, in_regs, in_sig_bt); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1333 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1334 #endif |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1335 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1336 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1337 // Unpack an array argument into a pointer to the body and the length |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1338 // if the array is non-null, otherwise pass 0 for both. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1339 static void unpack_array_argument(MacroAssembler* masm, VMRegPair reg, BasicType in_elem_type, VMRegPair body_arg, VMRegPair length_arg) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1340 Register tmp_reg = rax; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1341 assert(!body_arg.first()->is_Register() || body_arg.first()->as_Register() != tmp_reg, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1342 "possible collision"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1343 assert(!length_arg.first()->is_Register() || length_arg.first()->as_Register() != tmp_reg, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1344 "possible collision"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1345 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1346 // Pass the length, ptr pair |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1347 Label is_null, done; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1348 VMRegPair tmp; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1349 tmp.set_ptr(tmp_reg->as_VMReg()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1350 if (reg.first()->is_stack()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1351 // Load the arg up from the stack |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1352 move_ptr(masm, reg, tmp); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1353 reg = tmp; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1354 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1355 __ testptr(reg.first()->as_Register(), reg.first()->as_Register()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1356 __ jccb(Assembler::equal, is_null); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1357 __ lea(tmp_reg, Address(reg.first()->as_Register(), arrayOopDesc::base_offset_in_bytes(in_elem_type))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1358 move_ptr(masm, tmp, body_arg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1359 // load the length relative to the body. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1360 __ movl(tmp_reg, Address(tmp_reg, arrayOopDesc::length_offset_in_bytes() - |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1361 arrayOopDesc::base_offset_in_bytes(in_elem_type))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1362 move32_64(masm, tmp, length_arg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1363 __ jmpb(done); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1364 __ bind(is_null); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1365 // Pass zeros |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1366 __ xorptr(tmp_reg, tmp_reg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1367 move_ptr(masm, tmp, body_arg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1368 move32_64(masm, tmp, length_arg); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1369 __ bind(done); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1370 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1371 |
0 | 1372 // --------------------------------------------------------------------------- |
1373 // Generate a native wrapper for a given method. The method takes arguments | |
1374 // in the Java compiled code convention, marshals them to the native | |
1375 // convention (handlizes oops, etc), transitions to native, makes the call, | |
1376 // returns to java state (possibly blocking), unhandlizes any result and | |
1377 // returns. | |
1378 nmethod *SharedRuntime::generate_native_wrapper(MacroAssembler *masm, | |
1379 methodHandle method, | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2245
diff
changeset
|
1380 int compile_id, |
0 | 1381 int total_in_args, |
1382 int comp_args_on_stack, | |
1383 BasicType *in_sig_bt, | |
1384 VMRegPair *in_regs, | |
1385 BasicType ret_type) { | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1386 bool is_critical_native = true; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1387 address native_func = method->critical_native_function(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1388 if (native_func == NULL) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1389 native_func = method->native_function(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1390 is_critical_native = false; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1391 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1392 assert(native_func != NULL, "must have function"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1393 |
0 | 1394 // An OopMap for lock (and class if static) |
1395 OopMapSet *oop_maps = new OopMapSet(); | |
1396 intptr_t start = (intptr_t)__ pc(); | |
1397 | |
1398 // We have received a description of where all the java arg are located | |
1399 // on entry to the wrapper. We need to convert these args to where | |
1400 // the jni function will expect them. To figure out where they go | |
1401 // we convert the java signature to a C signature by inserting | |
1402 // the hidden arguments as arg[0] and possibly arg[1] (static method) | |
1403 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1404 int total_c_args = total_in_args; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1405 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1406 total_c_args += 1; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1407 if (method->is_static()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1408 total_c_args++; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1409 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1410 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1411 for (int i = 0; i < total_in_args; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1412 if (in_sig_bt[i] == T_ARRAY) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1413 total_c_args++; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1414 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1415 } |
0 | 1416 } |
1417 | |
1418 BasicType* out_sig_bt = NEW_RESOURCE_ARRAY(BasicType, total_c_args); | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1419 VMRegPair* out_regs = NEW_RESOURCE_ARRAY(VMRegPair, total_c_args); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1420 BasicType* in_elem_bt = NULL; |
0 | 1421 |
1422 int argc = 0; | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1423 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1424 out_sig_bt[argc++] = T_ADDRESS; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1425 if (method->is_static()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1426 out_sig_bt[argc++] = T_OBJECT; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1427 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1428 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1429 for (int i = 0; i < total_in_args ; i++ ) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1430 out_sig_bt[argc++] = in_sig_bt[i]; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1431 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1432 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1433 Thread* THREAD = Thread::current(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1434 in_elem_bt = NEW_RESOURCE_ARRAY(BasicType, total_in_args); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1435 SignatureStream ss(method->signature()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1436 for (int i = 0; i < total_in_args ; i++ ) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1437 if (in_sig_bt[i] == T_ARRAY) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1438 // Arrays are passed as int, elem* pair |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1439 out_sig_bt[argc++] = T_INT; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1440 out_sig_bt[argc++] = T_ADDRESS; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1441 Symbol* atype = ss.as_symbol(CHECK_NULL); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1442 const char* at = atype->as_C_string(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1443 if (strlen(at) == 2) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1444 assert(at[0] == '[', "must be"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1445 switch (at[1]) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1446 case 'B': in_elem_bt[i] = T_BYTE; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1447 case 'C': in_elem_bt[i] = T_CHAR; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1448 case 'D': in_elem_bt[i] = T_DOUBLE; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1449 case 'F': in_elem_bt[i] = T_FLOAT; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1450 case 'I': in_elem_bt[i] = T_INT; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1451 case 'J': in_elem_bt[i] = T_LONG; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1452 case 'S': in_elem_bt[i] = T_SHORT; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1453 case 'Z': in_elem_bt[i] = T_BOOLEAN; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1454 default: ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1455 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1456 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1457 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1458 out_sig_bt[argc++] = in_sig_bt[i]; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1459 in_elem_bt[i] = T_VOID; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1460 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1461 if (in_sig_bt[i] != T_VOID) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1462 assert(in_sig_bt[i] == ss.type(), "must match"); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1463 ss.next(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1464 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1465 } |
0 | 1466 } |
1467 | |
1468 // Now figure out where the args must be stored and how much stack space | |
1469 // they require. | |
1470 int out_arg_slots; | |
1471 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); | |
1472 | |
1473 // Compute framesize for the wrapper. We need to handlize all oops in | |
1474 // incoming registers | |
1475 | |
1476 // Calculate the total number of stack slots we will need. | |
1477 | |
1478 // First count the abi requirement plus all of the outgoing args | |
1479 int stack_slots = SharedRuntime::out_preserve_stack_slots() + out_arg_slots; | |
1480 | |
1481 // Now the space for the inbound oop handle area | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1482 int total_save_slots = 6 * VMRegImpl::slots_per_word; // 6 arguments passed in registers |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1483 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1484 // Critical natives may have to call out so they need a save area |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1485 // for register arguments. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1486 int double_slots = 0; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1487 int single_slots = 0; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1488 for ( int i = 0; i < total_in_args; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1489 if (in_regs[i].first()->is_Register()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1490 const Register reg = in_regs[i].first()->as_Register(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1491 switch (in_sig_bt[i]) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1492 case T_ARRAY: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1493 case T_BOOLEAN: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1494 case T_BYTE: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1495 case T_SHORT: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1496 case T_CHAR: |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1497 case T_INT: single_slots++; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1498 case T_LONG: double_slots++; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1499 default: ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1500 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1501 } else if (in_regs[i].first()->is_XMMRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1502 switch (in_sig_bt[i]) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1503 case T_FLOAT: single_slots++; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1504 case T_DOUBLE: double_slots++; break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1505 default: ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1506 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1507 } else if (in_regs[i].first()->is_FloatRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1508 ShouldNotReachHere(); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1509 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1510 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1511 total_save_slots = double_slots * 2 + single_slots; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1512 // align the save area |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1513 if (double_slots != 0) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1514 stack_slots = round_to(stack_slots, 2); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1515 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1516 } |
0 | 1517 |
1518 int oop_handle_offset = stack_slots; | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1519 stack_slots += total_save_slots; |
0 | 1520 |
1521 // Now any space we need for handlizing a klass if static method | |
1522 | |
1523 int klass_slot_offset = 0; | |
1524 int klass_offset = -1; | |
1525 int lock_slot_offset = 0; | |
1526 bool is_static = false; | |
1527 | |
1528 if (method->is_static()) { | |
1529 klass_slot_offset = stack_slots; | |
1530 stack_slots += VMRegImpl::slots_per_word; | |
1531 klass_offset = klass_slot_offset * VMRegImpl::stack_slot_size; | |
1532 is_static = true; | |
1533 } | |
1534 | |
1535 // Plus a lock if needed | |
1536 | |
1537 if (method->is_synchronized()) { | |
1538 lock_slot_offset = stack_slots; | |
1539 stack_slots += VMRegImpl::slots_per_word; | |
1540 } | |
1541 | |
1542 // Now a place (+2) to save return values or temp during shuffling | |
1543 // + 4 for return address (which we own) and saved rbp | |
1544 stack_slots += 6; | |
1545 | |
1546 // Ok The space we have allocated will look like: | |
1547 // | |
1548 // | |
1549 // FP-> | | | |
1550 // |---------------------| | |
1551 // | 2 slots for moves | | |
1552 // |---------------------| | |
1553 // | lock box (if sync) | | |
1554 // |---------------------| <- lock_slot_offset | |
1555 // | klass (if static) | | |
1556 // |---------------------| <- klass_slot_offset | |
1557 // | oopHandle area | | |
1558 // |---------------------| <- oop_handle_offset (6 java arg registers) | |
1559 // | outbound memory | | |
1560 // | based arguments | | |
1561 // | | | |
1562 // |---------------------| | |
1563 // | | | |
1564 // SP-> | out_preserved_slots | | |
1565 // | |
1566 // | |
1567 | |
1568 | |
1569 // Now compute actual number of stack words we need rounding to make | |
1570 // stack properly aligned. | |
524
c9004fe53695
6792301: StackAlignmentInBytes not honored for compiled native methods
xlu
parents:
520
diff
changeset
|
1571 stack_slots = round_to(stack_slots, StackAlignmentInSlots); |
0 | 1572 |
1573 int stack_size = stack_slots * VMRegImpl::stack_slot_size; | |
1574 | |
1575 // First thing make an ic check to see if we should even be here | |
1576 | |
1577 // We are free to use all registers as temps without saving them and | |
1578 // restoring them except rbp. rbp is the only callee save register | |
1579 // as far as the interpreter and the compiler(s) are concerned. | |
1580 | |
1581 | |
1582 const Register ic_reg = rax; | |
1583 const Register receiver = j_rarg0; | |
1584 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1585 Label hit; |
0 | 1586 Label exception_pending; |
1587 | |
848
fe95187e8882
6859338: amd64 native unverified entry point pushes values before implicit null check
never
parents:
682
diff
changeset
|
1588 assert_different_registers(ic_reg, receiver, rscratch1); |
0 | 1589 __ verify_oop(receiver); |
848
fe95187e8882
6859338: amd64 native unverified entry point pushes values before implicit null check
never
parents:
682
diff
changeset
|
1590 __ load_klass(rscratch1, receiver); |
fe95187e8882
6859338: amd64 native unverified entry point pushes values before implicit null check
never
parents:
682
diff
changeset
|
1591 __ cmpq(ic_reg, rscratch1); |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1592 __ jcc(Assembler::equal, hit); |
0 | 1593 |
1594 __ jump(RuntimeAddress(SharedRuntime::get_ic_miss_stub())); | |
1595 | |
1596 // Verified entry point must be aligned | |
1597 __ align(8); | |
1598 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1599 __ bind(hit); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1600 |
0 | 1601 int vep_offset = ((intptr_t)__ pc()) - start; |
1602 | |
1603 // The instruction at the verified entry point must be 5 bytes or longer | |
1604 // because it can be patched on the fly by make_non_entrant. The stack bang | |
1605 // instruction fits that requirement. | |
1606 | |
1607 // Generate stack overflow check | |
1608 | |
1609 if (UseStackBanging) { | |
1610 __ bang_stack_with_offset(StackShadowPages*os::vm_page_size()); | |
1611 } else { | |
1612 // need a 5 byte instruction to allow MT safe patching to non-entrant | |
1613 __ fat_nop(); | |
1614 } | |
1615 | |
1616 // Generate a new frame for the wrapper. | |
1617 __ enter(); | |
1618 // -2 because return address is already present and so is saved rbp | |
304 | 1619 __ subptr(rsp, stack_size - 2*wordSize); |
0 | 1620 |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1621 // Frame is now completed as far as size and linkage. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1622 int frame_complete = ((intptr_t)__ pc()) - start; |
0 | 1623 |
1624 #ifdef ASSERT | |
1625 { | |
1626 Label L; | |
304 | 1627 __ mov(rax, rsp); |
605 | 1628 __ andptr(rax, -16); // must be 16 byte boundary (see amd64 ABI) |
304 | 1629 __ cmpptr(rax, rsp); |
0 | 1630 __ jcc(Assembler::equal, L); |
1631 __ stop("improperly aligned stack"); | |
1632 __ bind(L); | |
1633 } | |
1634 #endif /* ASSERT */ | |
1635 | |
1636 | |
1637 // We use r14 as the oop handle for the receiver/klass | |
1638 // It is callee save so it survives the call to native | |
1639 | |
1640 const Register oop_handle_reg = r14; | |
1641 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1642 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1643 check_needs_gc_for_critical_native(masm, stack_slots, total_c_args, total_in_args, |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1644 oop_handle_offset, oop_maps, in_regs, in_sig_bt); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1645 } |
0 | 1646 |
1647 // | |
1648 // We immediately shuffle the arguments so that any vm call we have to | |
1649 // make from here on out (sync slow path, jvmti, etc.) we will have | |
1650 // captured the oops from our caller and have a valid oopMap for | |
1651 // them. | |
1652 | |
1653 // ----------------- | |
1654 // The Grand Shuffle | |
1655 | |
1656 // The Java calling convention is either equal (linux) or denser (win64) than the | |
1657 // c calling convention. However the because of the jni_env argument the c calling | |
1658 // convention always has at least one more (and two for static) arguments than Java. | |
1659 // Therefore if we move the args from java -> c backwards then we will never have | |
1660 // a register->register conflict and we don't have to build a dependency graph | |
1661 // and figure out how to break any cycles. | |
1662 // | |
1663 | |
1664 // Record esp-based slot for receiver on stack for non-static methods | |
1665 int receiver_offset = -1; | |
1666 | |
1667 // This is a trick. We double the stack slots so we can claim | |
1668 // the oops in the caller's frame. Since we are sure to have | |
1669 // more args than the caller doubling is enough to make | |
1670 // sure we can capture all the incoming oop args from the | |
1671 // caller. | |
1672 // | |
1673 OopMap* map = new OopMap(stack_slots * 2, 0 /* arg_slots*/); | |
1674 | |
1675 // Mark location of rbp (someday) | |
1676 // map->set_callee_saved(VMRegImpl::stack2reg( stack_slots - 2), stack_slots * 2, 0, vmreg(rbp)); | |
1677 | |
1678 // Use eax, ebx as temporaries during any memory-memory moves we have to do | |
1679 // All inbound args are referenced based on rbp and all outbound args via rsp. | |
1680 | |
1681 | |
1682 #ifdef ASSERT | |
1683 bool reg_destroyed[RegisterImpl::number_of_registers]; | |
1684 bool freg_destroyed[XMMRegisterImpl::number_of_registers]; | |
1685 for ( int r = 0 ; r < RegisterImpl::number_of_registers ; r++ ) { | |
1686 reg_destroyed[r] = false; | |
1687 } | |
1688 for ( int f = 0 ; f < XMMRegisterImpl::number_of_registers ; f++ ) { | |
1689 freg_destroyed[f] = false; | |
1690 } | |
1691 | |
1692 #endif /* ASSERT */ | |
1693 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1694 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1695 // The mapping of Java and C arguments passed in registers are |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1696 // rotated by one, which helps when passing arguments to regular |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1697 // Java method but for critical natives that creates a cycle which |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1698 // can cause arguments to be killed before they are used. Break |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1699 // the cycle by moving the first argument into a temporary |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1700 // register. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1701 for (int i = 0; i < total_c_args; i++) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1702 if (in_regs[i].first()->is_Register() && |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1703 in_regs[i].first()->as_Register() == rdi) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1704 __ mov(rbx, rdi); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1705 in_regs[i].set1(rbx->as_VMReg()); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1706 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1707 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1708 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1709 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1710 // This may iterate in two different directions depending on the |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1711 // kind of native it is. The reason is that for regular JNI natives |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1712 // the incoming and outgoing registers are offset upwards and for |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1713 // critical natives they are offset down. |
0 | 1714 int c_arg = total_c_args - 1; |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1715 int stride = -1; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1716 int init = total_in_args - 1; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1717 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1718 // stride forwards |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1719 c_arg = 0; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1720 stride = 1; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1721 init = 0; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1722 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1723 for (int i = init, count = 0; count < total_in_args; i += stride, c_arg += stride, count++ ) { |
0 | 1724 #ifdef ASSERT |
1725 if (in_regs[i].first()->is_Register()) { | |
1726 assert(!reg_destroyed[in_regs[i].first()->as_Register()->encoding()], "destroyed reg!"); | |
1727 } else if (in_regs[i].first()->is_XMMRegister()) { | |
1728 assert(!freg_destroyed[in_regs[i].first()->as_XMMRegister()->encoding()], "destroyed reg!"); | |
1729 } | |
1730 if (out_regs[c_arg].first()->is_Register()) { | |
1731 reg_destroyed[out_regs[c_arg].first()->as_Register()->encoding()] = true; | |
1732 } else if (out_regs[c_arg].first()->is_XMMRegister()) { | |
1733 freg_destroyed[out_regs[c_arg].first()->as_XMMRegister()->encoding()] = true; | |
1734 } | |
1735 #endif /* ASSERT */ | |
1736 switch (in_sig_bt[i]) { | |
1737 case T_ARRAY: | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1738 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1739 unpack_array_argument(masm, in_regs[i], in_elem_bt[i], out_regs[c_arg + 1], out_regs[c_arg]); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1740 c_arg++; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1741 #ifdef ASSERT |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1742 if (out_regs[c_arg].first()->is_Register()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1743 reg_destroyed[out_regs[c_arg].first()->as_Register()->encoding()] = true; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1744 } else if (out_regs[c_arg].first()->is_XMMRegister()) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1745 freg_destroyed[out_regs[c_arg].first()->as_XMMRegister()->encoding()] = true; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1746 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1747 #endif |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1748 break; |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1749 } |
0 | 1750 case T_OBJECT: |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1751 assert(!is_critical_native, "no oop arguments"); |
0 | 1752 object_move(masm, map, oop_handle_offset, stack_slots, in_regs[i], out_regs[c_arg], |
1753 ((i == 0) && (!is_static)), | |
1754 &receiver_offset); | |
1755 break; | |
1756 case T_VOID: | |
1757 break; | |
1758 | |
1759 case T_FLOAT: | |
1760 float_move(masm, in_regs[i], out_regs[c_arg]); | |
1761 break; | |
1762 | |
1763 case T_DOUBLE: | |
1764 assert( i + 1 < total_in_args && | |
1765 in_sig_bt[i + 1] == T_VOID && | |
1766 out_sig_bt[c_arg+1] == T_VOID, "bad arg list"); | |
1767 double_move(masm, in_regs[i], out_regs[c_arg]); | |
1768 break; | |
1769 | |
1770 case T_LONG : | |
1771 long_move(masm, in_regs[i], out_regs[c_arg]); | |
1772 break; | |
1773 | |
1774 case T_ADDRESS: assert(false, "found T_ADDRESS in java args"); | |
1775 | |
1776 default: | |
1777 move32_64(masm, in_regs[i], out_regs[c_arg]); | |
1778 } | |
1779 } | |
1780 | |
1781 // point c_arg at the first arg that is already loaded in case we | |
1782 // need to spill before we call out | |
1783 c_arg++; | |
1784 | |
1785 // Pre-load a static method's oop into r14. Used both by locking code and | |
1786 // the normal JNI call code. | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1787 if (method->is_static() && !is_critical_native) { |
0 | 1788 |
1789 // load oop into a register | |
1790 __ movoop(oop_handle_reg, JNIHandles::make_local(Klass::cast(method->method_holder())->java_mirror())); | |
1791 | |
1792 // Now handlize the static class mirror it's known not-null. | |
304 | 1793 __ movptr(Address(rsp, klass_offset), oop_handle_reg); |
0 | 1794 map->set_oop(VMRegImpl::stack2reg(klass_slot_offset)); |
1795 | |
1796 // Now get the handle | |
304 | 1797 __ lea(oop_handle_reg, Address(rsp, klass_offset)); |
0 | 1798 // store the klass handle as second argument |
304 | 1799 __ movptr(c_rarg1, oop_handle_reg); |
0 | 1800 // and protect the arg if we must spill |
1801 c_arg--; | |
1802 } | |
1803 | |
1804 // Change state to native (we save the return address in the thread, since it might not | |
1805 // be pushed on the stack when we do a a stack traversal). It is enough that the pc() | |
1806 // points into the right code segment. It does not have to be the correct return pc. | |
1807 // We use the same pc/oopMap repeatedly when we call out | |
1808 | |
1809 intptr_t the_pc = (intptr_t) __ pc(); | |
1810 oop_maps->add_gc_map(the_pc - start, map); | |
1811 | |
1812 __ set_last_Java_frame(rsp, noreg, (address)the_pc); | |
1813 | |
1814 | |
1815 // We have all of the arguments setup at this point. We must not touch any register | |
1816 // argument registers at this point (what if we save/restore them there are no oop? | |
1817 | |
1818 { | |
1819 SkipIfEqual skip(masm, &DTraceMethodProbes, false); | |
1820 // protect the args we've loaded | |
1821 save_args(masm, total_c_args, c_arg, out_regs); | |
1822 __ movoop(c_rarg1, JNIHandles::make_local(method())); | |
1823 __ call_VM_leaf( | |
1824 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_entry), | |
1825 r15_thread, c_rarg1); | |
1826 restore_args(masm, total_c_args, c_arg, out_regs); | |
1827 } | |
1828 | |
610
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1829 // RedefineClasses() tracing support for obsolete method entry |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1830 if (RC_TRACE_IN_RANGE(0x00001000, 0x00002000)) { |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1831 // protect the args we've loaded |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1832 save_args(masm, total_c_args, c_arg, out_regs); |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1833 __ movoop(c_rarg1, JNIHandles::make_local(method())); |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1834 __ call_VM_leaf( |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1835 CAST_FROM_FN_PTR(address, SharedRuntime::rc_trace_method_entry), |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1836 r15_thread, c_rarg1); |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1837 restore_args(masm, total_c_args, c_arg, out_regs); |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1838 } |
70998f2e05ef
6805864: 4/3 Problem with jvmti->redefineClasses: some methods don't get redefined
dcubed
parents:
304
diff
changeset
|
1839 |
0 | 1840 // Lock a synchronized method |
1841 | |
1842 // Register definitions used by locking and unlocking | |
1843 | |
1844 const Register swap_reg = rax; // Must use rax for cmpxchg instruction | |
1845 const Register obj_reg = rbx; // Will contain the oop | |
1846 const Register lock_reg = r13; // Address of compiler lock object (BasicLock) | |
1847 const Register old_hdr = r13; // value of old header at unlock time | |
1848 | |
1849 Label slow_path_lock; | |
1850 Label lock_done; | |
1851 | |
1852 if (method->is_synchronized()) { | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1853 assert(!is_critical_native, "unhandled"); |
0 | 1854 |
1855 | |
1856 const int mark_word_offset = BasicLock::displaced_header_offset_in_bytes(); | |
1857 | |
1858 // Get the handle (the 2nd argument) | |
304 | 1859 __ mov(oop_handle_reg, c_rarg1); |
0 | 1860 |
1861 // Get address of the box | |
1862 | |
304 | 1863 __ lea(lock_reg, Address(rsp, lock_slot_offset * VMRegImpl::stack_slot_size)); |
0 | 1864 |
1865 // Load the oop from the handle | |
304 | 1866 __ movptr(obj_reg, Address(oop_handle_reg, 0)); |
0 | 1867 |
1868 if (UseBiasedLocking) { | |
1869 __ biased_locking_enter(lock_reg, obj_reg, swap_reg, rscratch1, false, lock_done, &slow_path_lock); | |
1870 } | |
1871 | |
1872 // Load immediate 1 into swap_reg %rax | |
1873 __ movl(swap_reg, 1); | |
1874 | |
1875 // Load (object->mark() | 1) into swap_reg %rax | |
304 | 1876 __ orptr(swap_reg, Address(obj_reg, 0)); |
0 | 1877 |
1878 // Save (object->mark() | 1) into BasicLock's displaced header | |
304 | 1879 __ movptr(Address(lock_reg, mark_word_offset), swap_reg); |
0 | 1880 |
1881 if (os::is_MP()) { | |
1882 __ lock(); | |
1883 } | |
1884 | |
1885 // src -> dest iff dest == rax else rax <- dest | |
304 | 1886 __ cmpxchgptr(lock_reg, Address(obj_reg, 0)); |
0 | 1887 __ jcc(Assembler::equal, lock_done); |
1888 | |
1889 // Hmm should this move to the slow path code area??? | |
1890 | |
1891 // Test if the oopMark is an obvious stack pointer, i.e., | |
1892 // 1) (mark & 3) == 0, and | |
1893 // 2) rsp <= mark < mark + os::pagesize() | |
1894 // These 3 tests can be done by evaluating the following | |
1895 // expression: ((mark - rsp) & (3 - os::vm_page_size())), | |
1896 // assuming both stack pointer and pagesize have their | |
1897 // least significant 2 bits clear. | |
1898 // NOTE: the oopMark is in swap_reg %rax as the result of cmpxchg | |
1899 | |
304 | 1900 __ subptr(swap_reg, rsp); |
1901 __ andptr(swap_reg, 3 - os::vm_page_size()); | |
0 | 1902 |
1903 // Save the test result, for recursive case, the result is zero | |
304 | 1904 __ movptr(Address(lock_reg, mark_word_offset), swap_reg); |
0 | 1905 __ jcc(Assembler::notEqual, slow_path_lock); |
1906 | |
1907 // Slow path will re-enter here | |
1908 | |
1909 __ bind(lock_done); | |
1910 } | |
1911 | |
1912 | |
1913 // Finally just about ready to make the JNI call | |
1914 | |
1915 | |
1916 // get JNIEnv* which is first argument to native | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1917 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1918 __ lea(c_rarg0, Address(r15_thread, in_bytes(JavaThread::jni_environment_offset()))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1919 } |
0 | 1920 |
1921 // Now set thread in native | |
304 | 1922 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_native); |
0 | 1923 |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1924 __ call(RuntimeAddress(native_func)); |
0 | 1925 |
1926 // Either restore the MXCSR register after returning from the JNI Call | |
1927 // or verify that it wasn't changed. | |
1928 if (RestoreMXCSROnJNICalls) { | |
304 | 1929 __ ldmxcsr(ExternalAddress(StubRoutines::x86::mxcsr_std())); |
0 | 1930 |
1931 } | |
1932 else if (CheckJNICalls ) { | |
304 | 1933 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, StubRoutines::x86::verify_mxcsr_entry()))); |
0 | 1934 } |
1935 | |
1936 | |
1937 // Unpack native results. | |
1938 switch (ret_type) { | |
1939 case T_BOOLEAN: __ c2bool(rax); break; | |
1940 case T_CHAR : __ movzwl(rax, rax); break; | |
1941 case T_BYTE : __ sign_extend_byte (rax); break; | |
1942 case T_SHORT : __ sign_extend_short(rax); break; | |
1943 case T_INT : /* nothing to do */ break; | |
1944 case T_DOUBLE : | |
1945 case T_FLOAT : | |
1946 // Result is in xmm0 we'll save as needed | |
1947 break; | |
1948 case T_ARRAY: // Really a handle | |
1949 case T_OBJECT: // Really a handle | |
1950 break; // can't de-handlize until after safepoint check | |
1951 case T_VOID: break; | |
1952 case T_LONG: break; | |
1953 default : ShouldNotReachHere(); | |
1954 } | |
1955 | |
1956 // Switch thread to "native transition" state before reading the synchronization state. | |
1957 // This additional state is necessary because reading and testing the synchronization | |
1958 // state is not atomic w.r.t. GC, as this scenario demonstrates: | |
1959 // Java thread A, in _thread_in_native state, loads _not_synchronized and is preempted. | |
1960 // VM thread changes sync state to synchronizing and suspends threads for GC. | |
1961 // Thread A is resumed to finish this native method, but doesn't block here since it | |
1962 // didn't see any synchronization is progress, and escapes. | |
304 | 1963 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_native_trans); |
0 | 1964 |
1965 if(os::is_MP()) { | |
1966 if (UseMembar) { | |
1967 // Force this write out before the read below | |
1968 __ membar(Assembler::Membar_mask_bits( | |
1969 Assembler::LoadLoad | Assembler::LoadStore | | |
1970 Assembler::StoreLoad | Assembler::StoreStore)); | |
1971 } else { | |
1972 // Write serialization page so VM thread can do a pseudo remote membar. | |
1973 // We use the current thread pointer to calculate a thread specific | |
1974 // offset to write to within the page. This minimizes bus traffic | |
1975 // due to cache line collision. | |
1976 __ serialize_memory(r15_thread, rcx); | |
1977 } | |
1978 } | |
1979 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
1980 Label after_transition; |
0 | 1981 |
1982 // check for safepoint operation in progress and/or pending suspend requests | |
1983 { | |
1984 Label Continue; | |
1985 | |
1986 __ cmp32(ExternalAddress((address)SafepointSynchronize::address_of_state()), | |
1987 SafepointSynchronize::_not_synchronized); | |
1988 | |
1989 Label L; | |
1990 __ jcc(Assembler::notEqual, L); | |
1991 __ cmpl(Address(r15_thread, JavaThread::suspend_flags_offset()), 0); | |
1992 __ jcc(Assembler::equal, Continue); | |
1993 __ bind(L); | |
1994 | |
1995 // Don't use call_VM as it will see a possible pending exception and forward it | |
1996 // and never return here preventing us from clearing _last_native_pc down below. | |
1997 // Also can't use call_VM_leaf either as it will check to see if rsi & rdi are | |
1998 // preserved and correspond to the bcp/locals pointers. So we do a runtime call | |
1999 // by hand. | |
2000 // | |
2001 save_native_result(masm, ret_type, stack_slots); | |
304 | 2002 __ mov(c_rarg0, r15_thread); |
2003 __ mov(r12, rsp); // remember sp | |
2004 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
2005 __ andptr(rsp, -16); // align stack as required by ABI | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2006 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2007 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2008 } else { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2009 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, JavaThread::check_special_condition_for_native_trans_and_transition))); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2010 } |
304 | 2011 __ mov(rsp, r12); // restore sp |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2012 __ reinit_heapbase(); |
0 | 2013 // Restore any method result value |
2014 restore_native_result(masm, ret_type, stack_slots); | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2015 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2016 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2017 // The call above performed the transition to thread_in_Java so |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2018 // skip the transition logic below. |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2019 __ jmpb(after_transition); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2020 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2021 |
0 | 2022 __ bind(Continue); |
2023 } | |
2024 | |
2025 // change thread state | |
2026 __ movl(Address(r15_thread, JavaThread::thread_state_offset()), _thread_in_Java); | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2027 __ bind(after_transition); |
0 | 2028 |
2029 Label reguard; | |
2030 Label reguard_done; | |
2031 __ cmpl(Address(r15_thread, JavaThread::stack_guard_state_offset()), JavaThread::stack_guard_yellow_disabled); | |
2032 __ jcc(Assembler::equal, reguard); | |
2033 __ bind(reguard_done); | |
2034 | |
2035 // native result if any is live | |
2036 | |
2037 // Unlock | |
2038 Label unlock_done; | |
2039 Label slow_path_unlock; | |
2040 if (method->is_synchronized()) { | |
2041 | |
2042 // Get locked oop from the handle we passed to jni | |
304 | 2043 __ movptr(obj_reg, Address(oop_handle_reg, 0)); |
0 | 2044 |
2045 Label done; | |
2046 | |
2047 if (UseBiasedLocking) { | |
2048 __ biased_locking_exit(obj_reg, old_hdr, done); | |
2049 } | |
2050 | |
2051 // Simple recursive lock? | |
2052 | |
304 | 2053 __ cmpptr(Address(rsp, lock_slot_offset * VMRegImpl::stack_slot_size), (int32_t)NULL_WORD); |
0 | 2054 __ jcc(Assembler::equal, done); |
2055 | |
2056 // Must save rax if if it is live now because cmpxchg must use it | |
2057 if (ret_type != T_FLOAT && ret_type != T_DOUBLE && ret_type != T_VOID) { | |
2058 save_native_result(masm, ret_type, stack_slots); | |
2059 } | |
2060 | |
2061 | |
2062 // get address of the stack lock | |
304 | 2063 __ lea(rax, Address(rsp, lock_slot_offset * VMRegImpl::stack_slot_size)); |
0 | 2064 // get old displaced header |
304 | 2065 __ movptr(old_hdr, Address(rax, 0)); |
0 | 2066 |
2067 // Atomic swap old header if oop still contains the stack lock | |
2068 if (os::is_MP()) { | |
2069 __ lock(); | |
2070 } | |
304 | 2071 __ cmpxchgptr(old_hdr, Address(obj_reg, 0)); |
0 | 2072 __ jcc(Assembler::notEqual, slow_path_unlock); |
2073 | |
2074 // slow path re-enters here | |
2075 __ bind(unlock_done); | |
2076 if (ret_type != T_FLOAT && ret_type != T_DOUBLE && ret_type != T_VOID) { | |
2077 restore_native_result(masm, ret_type, stack_slots); | |
2078 } | |
2079 | |
2080 __ bind(done); | |
2081 | |
2082 } | |
2083 { | |
2084 SkipIfEqual skip(masm, &DTraceMethodProbes, false); | |
2085 save_native_result(masm, ret_type, stack_slots); | |
2086 __ movoop(c_rarg1, JNIHandles::make_local(method())); | |
2087 __ call_VM_leaf( | |
2088 CAST_FROM_FN_PTR(address, SharedRuntime::dtrace_method_exit), | |
2089 r15_thread, c_rarg1); | |
2090 restore_native_result(masm, ret_type, stack_slots); | |
2091 } | |
2092 | |
2093 __ reset_last_Java_frame(false, true); | |
2094 | |
2095 // Unpack oop result | |
2096 if (ret_type == T_OBJECT || ret_type == T_ARRAY) { | |
2097 Label L; | |
304 | 2098 __ testptr(rax, rax); |
0 | 2099 __ jcc(Assembler::zero, L); |
304 | 2100 __ movptr(rax, Address(rax, 0)); |
0 | 2101 __ bind(L); |
2102 __ verify_oop(rax); | |
2103 } | |
2104 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2105 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2106 // reset handle block |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2107 __ movptr(rcx, Address(r15_thread, JavaThread::active_handles_offset())); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2108 __ movptr(Address(rcx, JNIHandleBlock::top_offset_in_bytes()), (int32_t)NULL_WORD); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2109 } |
0 | 2110 |
2111 // pop our frame | |
2112 | |
2113 __ leave(); | |
2114 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2115 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2116 // Any exception pending? |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2117 __ cmpptr(Address(r15_thread, in_bytes(Thread::pending_exception_offset())), (int32_t)NULL_WORD); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2118 __ jcc(Assembler::notEqual, exception_pending); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2119 } |
0 | 2120 |
2121 // Return | |
2122 | |
2123 __ ret(0); | |
2124 | |
2125 // Unexpected paths are out of line and go here | |
2126 | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2127 if (!is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2128 // forward the exception |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2129 __ bind(exception_pending); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2130 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2131 // and forward the exception |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2132 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2133 } |
0 | 2134 |
2135 // Slow path locking & unlocking | |
2136 if (method->is_synchronized()) { | |
2137 | |
2138 // BEGIN Slow path lock | |
2139 __ bind(slow_path_lock); | |
2140 | |
2141 // has last_Java_frame setup. No exceptions so do vanilla call not call_VM | |
2142 // args are (oop obj, BasicLock* lock, JavaThread* thread) | |
2143 | |
2144 // protect the args we've loaded | |
2145 save_args(masm, total_c_args, c_arg, out_regs); | |
2146 | |
304 | 2147 __ mov(c_rarg0, obj_reg); |
2148 __ mov(c_rarg1, lock_reg); | |
2149 __ mov(c_rarg2, r15_thread); | |
0 | 2150 |
2151 // Not a leaf but we have last_Java_frame setup as we want | |
2152 __ call_VM_leaf(CAST_FROM_FN_PTR(address, SharedRuntime::complete_monitor_locking_C), 3); | |
2153 restore_args(masm, total_c_args, c_arg, out_regs); | |
2154 | |
2155 #ifdef ASSERT | |
2156 { Label L; | |
304 | 2157 __ cmpptr(Address(r15_thread, in_bytes(Thread::pending_exception_offset())), (int32_t)NULL_WORD); |
0 | 2158 __ jcc(Assembler::equal, L); |
2159 __ stop("no pending exception allowed on exit from monitorenter"); | |
2160 __ bind(L); | |
2161 } | |
2162 #endif | |
2163 __ jmp(lock_done); | |
2164 | |
2165 // END Slow path lock | |
2166 | |
2167 // BEGIN Slow path unlock | |
2168 __ bind(slow_path_unlock); | |
2169 | |
2170 // If we haven't already saved the native result we must save it now as xmm registers | |
2171 // are still exposed. | |
2172 | |
2173 if (ret_type == T_FLOAT || ret_type == T_DOUBLE ) { | |
2174 save_native_result(masm, ret_type, stack_slots); | |
2175 } | |
2176 | |
304 | 2177 __ lea(c_rarg1, Address(rsp, lock_slot_offset * VMRegImpl::stack_slot_size)); |
2178 | |
2179 __ mov(c_rarg0, obj_reg); | |
2180 __ mov(r12, rsp); // remember sp | |
2181 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
2182 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 2183 |
2184 // Save pending exception around call to VM (which contains an EXCEPTION_MARK) | |
2185 // NOTE that obj_reg == rbx currently | |
304 | 2186 __ movptr(rbx, Address(r15_thread, in_bytes(Thread::pending_exception_offset()))); |
2187 __ movptr(Address(r15_thread, in_bytes(Thread::pending_exception_offset())), (int32_t)NULL_WORD); | |
0 | 2188 |
2189 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::complete_monitor_unlocking_C))); | |
304 | 2190 __ mov(rsp, r12); // restore sp |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2191 __ reinit_heapbase(); |
0 | 2192 #ifdef ASSERT |
2193 { | |
2194 Label L; | |
304 | 2195 __ cmpptr(Address(r15_thread, in_bytes(Thread::pending_exception_offset())), (int)NULL_WORD); |
0 | 2196 __ jcc(Assembler::equal, L); |
2197 __ stop("no pending exception allowed on exit complete_monitor_unlocking_C"); | |
2198 __ bind(L); | |
2199 } | |
2200 #endif /* ASSERT */ | |
2201 | |
304 | 2202 __ movptr(Address(r15_thread, in_bytes(Thread::pending_exception_offset())), rbx); |
0 | 2203 |
2204 if (ret_type == T_FLOAT || ret_type == T_DOUBLE ) { | |
2205 restore_native_result(masm, ret_type, stack_slots); | |
2206 } | |
2207 __ jmp(unlock_done); | |
2208 | |
2209 // END Slow path unlock | |
2210 | |
2211 } // synchronized | |
2212 | |
2213 // SLOW PATH Reguard the stack if needed | |
2214 | |
2215 __ bind(reguard); | |
2216 save_native_result(masm, ret_type, stack_slots); | |
304 | 2217 __ mov(r12, rsp); // remember sp |
2218 __ subptr(rsp, frame::arg_reg_save_area_bytes); // windows | |
2219 __ andptr(rsp, -16); // align stack as required by ABI | |
0 | 2220 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, SharedRuntime::reguard_yellow_pages))); |
304 | 2221 __ mov(rsp, r12); // restore sp |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2222 __ reinit_heapbase(); |
0 | 2223 restore_native_result(masm, ret_type, stack_slots); |
2224 // and continue | |
2225 __ jmp(reguard_done); | |
2226 | |
2227 | |
2228 | |
2229 __ flush(); | |
2230 | |
2231 nmethod *nm = nmethod::new_native_nmethod(method, | |
2405
3d58a4983660
7022998: JSR 292 recursive method handle calls inline themselves infinitely
twisti
parents:
2245
diff
changeset
|
2232 compile_id, |
0 | 2233 masm->code(), |
2234 vep_offset, | |
2235 frame_complete, | |
2236 stack_slots / VMRegImpl::slots_per_word, | |
2237 (is_static ? in_ByteSize(klass_offset) : in_ByteSize(receiver_offset)), | |
2238 in_ByteSize(lock_slot_offset*VMRegImpl::stack_slot_size), | |
2239 oop_maps); | |
4873
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2240 |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2241 if (is_critical_native) { |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2242 nm->set_lazy_critical_native(true); |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2243 } |
0382d2b469b2
7013347: allow crypto functions to be called inline to enhance performance
never
parents:
4057
diff
changeset
|
2244 |
0 | 2245 return nm; |
2246 | |
2247 } | |
2248 | |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2249 #ifdef HAVE_DTRACE_H |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2250 // --------------------------------------------------------------------------- |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2251 // Generate a dtrace nmethod for a given signature. The method takes arguments |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2252 // in the Java compiled code convention, marshals them to the native |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2253 // abi and then leaves nops at the position you would expect to call a native |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2254 // function. When the probe is enabled the nops are replaced with a trap |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2255 // instruction that dtrace inserts and the trace will cause a notification |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2256 // to dtrace. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2257 // |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2258 // The probes are only able to take primitive types and java/lang/String as |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2259 // arguments. No other java types are allowed. Strings are converted to utf8 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2260 // strings so that from dtrace point of view java strings are converted to C |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2261 // strings. There is an arbitrary fixed limit on the total space that a method |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2262 // can use for converting the strings. (256 chars per string in the signature). |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2263 // So any java string larger then this is truncated. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2264 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2265 static int fp_offset[ConcreteRegisterImpl::number_of_registers] = { 0 }; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2266 static bool offsets_initialized = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2267 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2268 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2269 nmethod *SharedRuntime::generate_dtrace_nmethod(MacroAssembler *masm, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2270 methodHandle method) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2271 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2272 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2273 // generate_dtrace_nmethod is guarded by a mutex so we are sure to |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2274 // be single threaded in this method. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2275 assert(AdapterHandlerLibrary_lock->owned_by_self(), "must be"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2276 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2277 if (!offsets_initialized) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2278 fp_offset[c_rarg0->as_VMReg()->value()] = -1 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2279 fp_offset[c_rarg1->as_VMReg()->value()] = -2 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2280 fp_offset[c_rarg2->as_VMReg()->value()] = -3 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2281 fp_offset[c_rarg3->as_VMReg()->value()] = -4 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2282 fp_offset[c_rarg4->as_VMReg()->value()] = -5 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2283 fp_offset[c_rarg5->as_VMReg()->value()] = -6 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2284 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2285 fp_offset[c_farg0->as_VMReg()->value()] = -7 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2286 fp_offset[c_farg1->as_VMReg()->value()] = -8 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2287 fp_offset[c_farg2->as_VMReg()->value()] = -9 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2288 fp_offset[c_farg3->as_VMReg()->value()] = -10 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2289 fp_offset[c_farg4->as_VMReg()->value()] = -11 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2290 fp_offset[c_farg5->as_VMReg()->value()] = -12 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2291 fp_offset[c_farg6->as_VMReg()->value()] = -13 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2292 fp_offset[c_farg7->as_VMReg()->value()] = -14 * wordSize; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2293 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2294 offsets_initialized = true; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2295 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2296 // Fill in the signature array, for the calling-convention call. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2297 int total_args_passed = method->size_of_parameters(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2298 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2299 BasicType* in_sig_bt = NEW_RESOURCE_ARRAY(BasicType, total_args_passed); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2300 VMRegPair *in_regs = NEW_RESOURCE_ARRAY(VMRegPair, total_args_passed); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2301 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2302 // The signature we are going to use for the trap that dtrace will see |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2303 // java/lang/String is converted. We drop "this" and any other object |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2304 // is converted to NULL. (A one-slot java/lang/Long object reference |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2305 // is converted to a two-slot long, which is why we double the allocation). |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2306 BasicType* out_sig_bt = NEW_RESOURCE_ARRAY(BasicType, total_args_passed * 2); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2307 VMRegPair* out_regs = NEW_RESOURCE_ARRAY(VMRegPair, total_args_passed * 2); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2308 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2309 int i=0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2310 int total_strings = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2311 int first_arg_to_pass = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2312 int total_c_args = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2313 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2314 // Skip the receiver as dtrace doesn't want to see it |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2315 if( !method->is_static() ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2316 in_sig_bt[i++] = T_OBJECT; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2317 first_arg_to_pass = 1; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2318 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2319 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2320 // We need to convert the java args to where a native (non-jni) function |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2321 // would expect them. To figure out where they go we convert the java |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2322 // signature to a C signature. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2323 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2324 SignatureStream ss(method->signature()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2325 for ( ; !ss.at_return_type(); ss.next()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2326 BasicType bt = ss.type(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2327 in_sig_bt[i++] = bt; // Collect remaining bits of signature |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2328 out_sig_bt[total_c_args++] = bt; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2329 if( bt == T_OBJECT) { |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
2330 Symbol* s = ss.as_symbol_or_null(); // symbol is created |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2331 if (s == vmSymbols::java_lang_String()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2332 total_strings++; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2333 out_sig_bt[total_c_args-1] = T_ADDRESS; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2334 } else if (s == vmSymbols::java_lang_Boolean() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2335 s == vmSymbols::java_lang_Character() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2336 s == vmSymbols::java_lang_Byte() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2337 s == vmSymbols::java_lang_Short() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2338 s == vmSymbols::java_lang_Integer() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2339 s == vmSymbols::java_lang_Float()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2340 out_sig_bt[total_c_args-1] = T_INT; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2341 } else if (s == vmSymbols::java_lang_Long() || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2342 s == vmSymbols::java_lang_Double()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2343 out_sig_bt[total_c_args-1] = T_LONG; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2344 out_sig_bt[total_c_args++] = T_VOID; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2345 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2346 } else if ( bt == T_LONG || bt == T_DOUBLE ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2347 in_sig_bt[i++] = T_VOID; // Longs & doubles take 2 Java slots |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2348 // We convert double to long |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2349 out_sig_bt[total_c_args-1] = T_LONG; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2350 out_sig_bt[total_c_args++] = T_VOID; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2351 } else if ( bt == T_FLOAT) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2352 // We convert float to int |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2353 out_sig_bt[total_c_args-1] = T_INT; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2354 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2355 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2356 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2357 assert(i==total_args_passed, "validly parsed signature"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2358 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2359 // Now get the compiled-Java layout as input arguments |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2360 int comp_args_on_stack; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2361 comp_args_on_stack = SharedRuntime::java_calling_convention( |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2362 in_sig_bt, in_regs, total_args_passed, false); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2363 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2364 // Now figure out where the args must be stored and how much stack space |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2365 // they require (neglecting out_preserve_stack_slots but space for storing |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2366 // the 1st six register arguments). It's weird see int_stk_helper. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2367 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2368 int out_arg_slots; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2369 out_arg_slots = c_calling_convention(out_sig_bt, out_regs, total_c_args); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2370 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2371 // Calculate the total number of stack slots we will need. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2372 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2373 // First count the abi requirement plus all of the outgoing args |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2374 int stack_slots = SharedRuntime::out_preserve_stack_slots() + out_arg_slots; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2375 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2376 // Now space for the string(s) we must convert |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2377 int* string_locs = NEW_RESOURCE_ARRAY(int, total_strings + 1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2378 for (i = 0; i < total_strings ; i++) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2379 string_locs[i] = stack_slots; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2380 stack_slots += max_dtrace_string_size / VMRegImpl::stack_slot_size; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2381 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2382 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2383 // Plus the temps we might need to juggle register args |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2384 // regs take two slots each |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2385 stack_slots += (Argument::n_int_register_parameters_c + |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2386 Argument::n_float_register_parameters_c) * 2; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2387 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2388 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2389 // + 4 for return address (which we own) and saved rbp, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2390 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2391 stack_slots += 4; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2392 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2393 // Ok The space we have allocated will look like: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2394 // |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2395 // |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2396 // FP-> | | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2397 // |---------------------| |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2398 // | string[n] | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2399 // |---------------------| <- string_locs[n] |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2400 // | string[n-1] | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2401 // |---------------------| <- string_locs[n-1] |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2402 // | ... | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2403 // | ... | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2404 // |---------------------| <- string_locs[1] |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2405 // | string[0] | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2406 // |---------------------| <- string_locs[0] |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2407 // | outbound memory | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2408 // | based arguments | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2409 // | | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2410 // |---------------------| |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2411 // | | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2412 // SP-> | out_preserved_slots | |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2413 // |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2414 // |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2415 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2416 // Now compute actual number of stack words we need rounding to make |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2417 // stack properly aligned. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2418 stack_slots = round_to(stack_slots, 4 * VMRegImpl::slots_per_word); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2419 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2420 int stack_size = stack_slots * VMRegImpl::stack_slot_size; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2421 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2422 intptr_t start = (intptr_t)__ pc(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2423 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2424 // First thing make an ic check to see if we should even be here |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2425 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2426 // We are free to use all registers as temps without saving them and |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2427 // restoring them except rbp. rbp, is the only callee save register |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2428 // as far as the interpreter and the compiler(s) are concerned. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2429 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2430 const Register ic_reg = rax; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2431 const Register receiver = rcx; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2432 Label hit; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2433 Label exception_pending; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2434 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2435 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2436 __ verify_oop(receiver); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2437 __ cmpl(ic_reg, Address(receiver, oopDesc::klass_offset_in_bytes())); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2438 __ jcc(Assembler::equal, hit); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2439 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2440 __ jump(RuntimeAddress(SharedRuntime::get_ic_miss_stub())); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2441 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2442 // verified entry must be aligned for code patching. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2443 // and the first 5 bytes must be in the same cache line |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2444 // if we align at 8 then we will be sure 5 bytes are in the same line |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2445 __ align(8); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2446 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2447 __ bind(hit); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2448 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2449 int vep_offset = ((intptr_t)__ pc()) - start; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2450 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2451 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2452 // The instruction at the verified entry point must be 5 bytes or longer |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2453 // because it can be patched on the fly by make_non_entrant. The stack bang |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2454 // instruction fits that requirement. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2455 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2456 // Generate stack overflow check |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2457 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2458 if (UseStackBanging) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2459 if (stack_size <= StackShadowPages*os::vm_page_size()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2460 __ bang_stack_with_offset(StackShadowPages*os::vm_page_size()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2461 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2462 __ movl(rax, stack_size); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2463 __ bang_stack_size(rax, rbx); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2464 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2465 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2466 // need a 5 byte instruction to allow MT safe patching to non-entrant |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2467 __ fat_nop(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2468 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2469 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2470 assert(((uintptr_t)__ pc() - start - vep_offset) >= 5, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2471 "valid size for make_non_entrant"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2472 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2473 // Generate a new frame for the wrapper. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2474 __ enter(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2475 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2476 // -4 because return address is already present and so is saved rbp, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2477 if (stack_size - 2*wordSize != 0) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2478 __ subq(rsp, stack_size - 2*wordSize); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2479 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2480 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2481 // Frame is now completed as far a size and linkage. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2482 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2483 int frame_complete = ((intptr_t)__ pc()) - start; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2484 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2485 int c_arg, j_arg; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2486 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2487 // State of input register args |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2488 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2489 bool live[ConcreteRegisterImpl::number_of_registers]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2490 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2491 live[j_rarg0->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2492 live[j_rarg1->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2493 live[j_rarg2->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2494 live[j_rarg3->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2495 live[j_rarg4->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2496 live[j_rarg5->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2497 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2498 live[j_farg0->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2499 live[j_farg1->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2500 live[j_farg2->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2501 live[j_farg3->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2502 live[j_farg4->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2503 live[j_farg5->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2504 live[j_farg6->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2505 live[j_farg7->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2506 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2507 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2508 bool rax_is_zero = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2509 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2510 // All args (except strings) destined for the stack are moved first |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2511 for (j_arg = first_arg_to_pass, c_arg = 0 ; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2512 j_arg < total_args_passed ; j_arg++, c_arg++ ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2513 VMRegPair src = in_regs[j_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2514 VMRegPair dst = out_regs[c_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2515 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2516 // Get the real reg value or a dummy (rsp) |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2517 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2518 int src_reg = src.first()->is_reg() ? |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2519 src.first()->value() : |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2520 rsp->as_VMReg()->value(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2521 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2522 bool useless = in_sig_bt[j_arg] == T_ARRAY || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2523 (in_sig_bt[j_arg] == T_OBJECT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2524 out_sig_bt[c_arg] != T_INT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2525 out_sig_bt[c_arg] != T_ADDRESS && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2526 out_sig_bt[c_arg] != T_LONG); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2527 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2528 live[src_reg] = !useless; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2529 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2530 if (dst.first()->is_stack()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2531 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2532 // Even though a string arg in a register is still live after this loop |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2533 // after the string conversion loop (next) it will be dead so we take |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2534 // advantage of that now for simpler code to manage live. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2535 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2536 live[src_reg] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2537 switch (in_sig_bt[j_arg]) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2538 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2539 case T_ARRAY: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2540 case T_OBJECT: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2541 { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2542 Address stack_dst(rsp, reg2offset_out(dst.first())); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2543 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2544 if (out_sig_bt[c_arg] == T_INT || out_sig_bt[c_arg] == T_LONG) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2545 // need to unbox a one-word value |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2546 Register in_reg = rax; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2547 if ( src.first()->is_reg() ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2548 in_reg = src.first()->as_Register(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2549 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2550 __ movq(rax, Address(rbp, reg2offset_in(src.first()))); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2551 rax_is_zero = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2552 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2553 Label skipUnbox; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2554 __ movptr(Address(rsp, reg2offset_out(dst.first())), |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2555 (int32_t)NULL_WORD); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2556 __ testq(in_reg, in_reg); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2557 __ jcc(Assembler::zero, skipUnbox); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2558 |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2559 BasicType bt = out_sig_bt[c_arg]; |
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2560 int box_offset = java_lang_boxing_object::value_offset_in_bytes(bt); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2561 Address src1(in_reg, box_offset); |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2562 if ( bt == T_LONG ) { |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2563 __ movq(in_reg, src1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2564 __ movq(stack_dst, in_reg); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2565 assert(out_sig_bt[c_arg+1] == T_VOID, "must be"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2566 ++c_arg; // skip over T_VOID to keep the loop indices in sync |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2567 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2568 __ movl(in_reg, src1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2569 __ movl(stack_dst, in_reg); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2570 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2571 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2572 __ bind(skipUnbox); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2573 } else if (out_sig_bt[c_arg] != T_ADDRESS) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2574 // Convert the arg to NULL |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2575 if (!rax_is_zero) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2576 __ xorq(rax, rax); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2577 rax_is_zero = true; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2578 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2579 __ movq(stack_dst, rax); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2580 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2581 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2582 break; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2583 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2584 case T_VOID: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2585 break; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2586 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2587 case T_FLOAT: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2588 // This does the right thing since we know it is destined for the |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2589 // stack |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2590 float_move(masm, src, dst); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2591 break; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2592 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2593 case T_DOUBLE: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2594 // This does the right thing since we know it is destined for the |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2595 // stack |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2596 double_move(masm, src, dst); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2597 break; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2598 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2599 case T_LONG : |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2600 long_move(masm, src, dst); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2601 break; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2602 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2603 case T_ADDRESS: assert(false, "found T_ADDRESS in java args"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2604 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2605 default: |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2606 move32_64(masm, src, dst); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2607 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2608 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2609 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2610 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2611 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2612 // If we have any strings we must store any register based arg to the stack |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2613 // This includes any still live xmm registers too. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2614 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2615 int sid = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2616 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2617 if (total_strings > 0 ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2618 for (j_arg = first_arg_to_pass, c_arg = 0 ; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2619 j_arg < total_args_passed ; j_arg++, c_arg++ ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2620 VMRegPair src = in_regs[j_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2621 VMRegPair dst = out_regs[c_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2622 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2623 if (src.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2624 Address src_tmp(rbp, fp_offset[src.first()->value()]); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2625 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2626 // string oops were left untouched by the previous loop even if the |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2627 // eventual (converted) arg is destined for the stack so park them |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2628 // away now (except for first) |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2629 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2630 if (out_sig_bt[c_arg] == T_ADDRESS) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2631 Address utf8_addr = Address( |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2632 rsp, string_locs[sid++] * VMRegImpl::stack_slot_size); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2633 if (sid != 1) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2634 // The first string arg won't be killed until after the utf8 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2635 // conversion |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2636 __ movq(utf8_addr, src.first()->as_Register()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2637 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2638 } else if (dst.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2639 if (in_sig_bt[j_arg] == T_FLOAT || in_sig_bt[j_arg] == T_DOUBLE) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2640 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2641 // Convert the xmm register to an int and store it in the reserved |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2642 // location for the eventual c register arg |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2643 XMMRegister f = src.first()->as_XMMRegister(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2644 if (in_sig_bt[j_arg] == T_FLOAT) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2645 __ movflt(src_tmp, f); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2646 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2647 __ movdbl(src_tmp, f); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2648 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2649 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2650 // If the arg is an oop type we don't support don't bother to store |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2651 // it remember string was handled above. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2652 bool useless = in_sig_bt[j_arg] == T_ARRAY || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2653 (in_sig_bt[j_arg] == T_OBJECT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2654 out_sig_bt[c_arg] != T_INT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2655 out_sig_bt[c_arg] != T_LONG); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2656 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2657 if (!useless) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2658 __ movq(src_tmp, src.first()->as_Register()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2659 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2660 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2661 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2662 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2663 if (in_sig_bt[j_arg] == T_OBJECT && out_sig_bt[c_arg] == T_LONG) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2664 assert(out_sig_bt[c_arg+1] == T_VOID, "must be"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2665 ++c_arg; // skip over T_VOID to keep the loop indices in sync |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2666 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2667 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2668 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2669 // Now that the volatile registers are safe, convert all the strings |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2670 sid = 0; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2671 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2672 for (j_arg = first_arg_to_pass, c_arg = 0 ; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2673 j_arg < total_args_passed ; j_arg++, c_arg++ ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2674 if (out_sig_bt[c_arg] == T_ADDRESS) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2675 // It's a string |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2676 Address utf8_addr = Address( |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2677 rsp, string_locs[sid++] * VMRegImpl::stack_slot_size); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2678 // The first string we find might still be in the original java arg |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2679 // register |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2680 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2681 VMReg src = in_regs[j_arg].first(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2682 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2683 // We will need to eventually save the final argument to the trap |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2684 // in the von-volatile location dedicated to src. This is the offset |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2685 // from fp we will use. |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2686 int src_off = src->is_reg() ? |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2687 fp_offset[src->value()] : reg2offset_in(src); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2688 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2689 // This is where the argument will eventually reside |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2690 VMRegPair dst = out_regs[c_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2691 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2692 if (src->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2693 if (sid == 1) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2694 __ movq(c_rarg0, src->as_Register()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2695 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2696 __ movq(c_rarg0, utf8_addr); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2697 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2698 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2699 // arg is still in the original location |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2700 __ movq(c_rarg0, Address(rbp, reg2offset_in(src))); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2701 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2702 Label done, convert; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2703 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2704 // see if the oop is NULL |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2705 __ testq(c_rarg0, c_rarg0); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2706 __ jcc(Assembler::notEqual, convert); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2707 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2708 if (dst.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2709 // Save the ptr to utf string in the origina src loc or the tmp |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2710 // dedicated to it |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2711 __ movq(Address(rbp, src_off), c_rarg0); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2712 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2713 __ movq(Address(rsp, reg2offset_out(dst.first())), c_rarg0); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2714 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2715 __ jmp(done); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2716 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2717 __ bind(convert); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2718 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2719 __ lea(c_rarg1, utf8_addr); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2720 if (dst.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2721 __ movq(Address(rbp, src_off), c_rarg1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2722 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2723 __ movq(Address(rsp, reg2offset_out(dst.first())), c_rarg1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2724 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2725 // And do the conversion |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2726 __ call(RuntimeAddress( |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2727 CAST_FROM_FN_PTR(address, SharedRuntime::get_utf))); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2728 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2729 __ bind(done); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2730 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2731 if (in_sig_bt[j_arg] == T_OBJECT && out_sig_bt[c_arg] == T_LONG) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2732 assert(out_sig_bt[c_arg+1] == T_VOID, "must be"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2733 ++c_arg; // skip over T_VOID to keep the loop indices in sync |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2734 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2735 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2736 // The get_utf call killed all the c_arg registers |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2737 live[c_rarg0->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2738 live[c_rarg1->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2739 live[c_rarg2->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2740 live[c_rarg3->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2741 live[c_rarg4->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2742 live[c_rarg5->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2743 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2744 live[c_farg0->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2745 live[c_farg1->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2746 live[c_farg2->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2747 live[c_farg3->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2748 live[c_farg4->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2749 live[c_farg5->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2750 live[c_farg6->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2751 live[c_farg7->as_VMReg()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2752 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2753 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2754 // Now we can finally move the register args to their desired locations |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2755 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2756 rax_is_zero = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2757 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2758 for (j_arg = first_arg_to_pass, c_arg = 0 ; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2759 j_arg < total_args_passed ; j_arg++, c_arg++ ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2760 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2761 VMRegPair src = in_regs[j_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2762 VMRegPair dst = out_regs[c_arg]; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2763 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2764 // Only need to look for args destined for the interger registers (since we |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2765 // convert float/double args to look like int/long outbound) |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2766 if (dst.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2767 Register r = dst.first()->as_Register(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2768 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2769 // Check if the java arg is unsupported and thereofre useless |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2770 bool useless = in_sig_bt[j_arg] == T_ARRAY || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2771 (in_sig_bt[j_arg] == T_OBJECT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2772 out_sig_bt[c_arg] != T_INT && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2773 out_sig_bt[c_arg] != T_ADDRESS && |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2774 out_sig_bt[c_arg] != T_LONG); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2775 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2776 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2777 // If we're going to kill an existing arg save it first |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2778 if (live[dst.first()->value()]) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2779 // you can't kill yourself |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2780 if (src.first() != dst.first()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2781 __ movq(Address(rbp, fp_offset[dst.first()->value()]), r); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2782 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2783 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2784 if (src.first()->is_reg()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2785 if (live[src.first()->value()] ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2786 if (in_sig_bt[j_arg] == T_FLOAT) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2787 __ movdl(r, src.first()->as_XMMRegister()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2788 } else if (in_sig_bt[j_arg] == T_DOUBLE) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2789 __ movdq(r, src.first()->as_XMMRegister()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2790 } else if (r != src.first()->as_Register()) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2791 if (!useless) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2792 __ movq(r, src.first()->as_Register()); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2793 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2794 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2795 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2796 // If the arg is an oop type we don't support don't bother to store |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2797 // it |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2798 if (!useless) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2799 if (in_sig_bt[j_arg] == T_DOUBLE || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2800 in_sig_bt[j_arg] == T_LONG || |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2801 in_sig_bt[j_arg] == T_OBJECT ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2802 __ movq(r, Address(rbp, fp_offset[src.first()->value()])); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2803 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2804 __ movl(r, Address(rbp, fp_offset[src.first()->value()])); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2805 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2806 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2807 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2808 live[src.first()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2809 } else if (!useless) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2810 // full sized move even for int should be ok |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2811 __ movq(r, Address(rbp, reg2offset_in(src.first()))); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2812 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2813 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2814 // At this point r has the original java arg in the final location |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2815 // (assuming it wasn't useless). If the java arg was an oop |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2816 // we have a bit more to do |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2817 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2818 if (in_sig_bt[j_arg] == T_ARRAY || in_sig_bt[j_arg] == T_OBJECT ) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2819 if (out_sig_bt[c_arg] == T_INT || out_sig_bt[c_arg] == T_LONG) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2820 // need to unbox a one-word value |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2821 Label skip; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2822 __ testq(r, r); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2823 __ jcc(Assembler::equal, skip); |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2824 BasicType bt = out_sig_bt[c_arg]; |
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2825 int box_offset = java_lang_boxing_object::value_offset_in_bytes(bt); |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2826 Address src1(r, box_offset); |
165
437d03ea40b1
6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents:
116
diff
changeset
|
2827 if ( bt == T_LONG ) { |
116
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2828 __ movq(r, src1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2829 } else { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2830 __ movl(r, src1); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2831 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2832 __ bind(skip); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2833 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2834 } else if (out_sig_bt[c_arg] != T_ADDRESS) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2835 // Convert the arg to NULL |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2836 __ xorq(r, r); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2837 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2838 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2839 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2840 // dst can longer be holding an input value |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2841 live[dst.first()->value()] = false; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2842 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2843 if (in_sig_bt[j_arg] == T_OBJECT && out_sig_bt[c_arg] == T_LONG) { |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2844 assert(out_sig_bt[c_arg+1] == T_VOID, "must be"); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2845 ++c_arg; // skip over T_VOID to keep the loop indices in sync |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2846 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2847 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2848 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2849 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2850 // Ok now we are done. Need to place the nop that dtrace wants in order to |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2851 // patch in the trap |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2852 int patch_offset = ((intptr_t)__ pc()) - start; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2853 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2854 __ nop(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2855 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2856 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2857 // Return |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2858 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2859 __ leave(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2860 __ ret(0); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2861 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2862 __ flush(); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2863 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2864 nmethod *nm = nmethod::new_dtrace_nmethod( |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2865 method, masm->code(), vep_offset, patch_offset, frame_complete, |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2866 stack_slots / VMRegImpl::slots_per_word); |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2867 return nm; |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2868 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2869 } |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2870 |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2871 #endif // HAVE_DTRACE_H |
018d5b58dd4f
6537506: Provide a mechanism for specifying Java-level USDT-like dtrace probes
kamg
parents:
113
diff
changeset
|
2872 |
0 | 2873 // this function returns the adjust size (in number of words) to a c2i adapter |
2874 // activation for use during deoptimization | |
2875 int Deoptimization::last_frame_adjust(int callee_parameters, int callee_locals ) { | |
1506 | 2876 return (callee_locals - callee_parameters) * Interpreter::stackElementWords; |
0 | 2877 } |
2878 | |
2879 | |
2880 uint SharedRuntime::out_preserve_stack_slots() { | |
2881 return 0; | |
2882 } | |
2883 | |
2884 | |
2885 //------------------------------generate_deopt_blob---------------------------- | |
2886 void SharedRuntime::generate_deopt_blob() { | |
2887 // Allocate space for the code | |
2888 ResourceMark rm; | |
2889 // Setup code generation tools | |
2890 CodeBuffer buffer("deopt_blob", 2048, 1024); | |
2891 MacroAssembler* masm = new MacroAssembler(&buffer); | |
2892 int frame_size_in_words; | |
2893 OopMap* map = NULL; | |
2894 OopMapSet *oop_maps = new OopMapSet(); | |
2895 | |
2896 // ------------- | |
2897 // This code enters when returning to a de-optimized nmethod. A return | |
2898 // address has been pushed on the the stack, and return values are in | |
2899 // registers. | |
2900 // If we are doing a normal deopt then we were called from the patched | |
2901 // nmethod from the point we returned to the nmethod. So the return | |
2902 // address on the stack is wrong by NativeCall::instruction_size | |
2903 // We will adjust the value so it looks like we have the original return | |
2904 // address on the stack (like when we eagerly deoptimized). | |
2905 // In the case of an exception pending when deoptimizing, we enter | |
2906 // with a return address on the stack that points after the call we patched | |
2907 // into the exception handler. We have the following register state from, | |
2908 // e.g., the forward exception stub (see stubGenerator_x86_64.cpp). | |
2909 // rax: exception oop | |
2910 // rbx: exception handler | |
2911 // rdx: throwing pc | |
2912 // So in this case we simply jam rdx into the useless return address and | |
2913 // the stack looks just like we want. | |
2914 // | |
2915 // At this point we need to de-opt. We save the argument return | |
2916 // registers. We call the first C routine, fetch_unroll_info(). This | |
2917 // routine captures the return values and returns a structure which | |
2918 // describes the current frame size and the sizes of all replacement frames. | |
2919 // The current frame is compiled code and may contain many inlined | |
2920 // functions, each with their own JVM state. We pop the current frame, then | |
2921 // push all the new frames. Then we call the C routine unpack_frames() to | |
2922 // populate these frames. Finally unpack_frames() returns us the new target | |
2923 // address. Notice that callee-save registers are BLOWN here; they have | |
2924 // already been captured in the vframeArray at the time the return PC was | |
2925 // patched. | |
2926 address start = __ pc(); | |
2927 Label cont; | |
2928 | |
2929 // Prolog for non exception case! | |
2930 | |
2931 // Save everything in sight. | |
2932 map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); | |
2933 | |
2934 // Normal deoptimization. Save exec mode for unpack_frames. | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2935 __ movl(r14, Deoptimization::Unpack_deopt); // callee-saved |
0 | 2936 __ jmp(cont); |
304 | 2937 |
2938 int reexecute_offset = __ pc() - start; | |
2939 | |
2940 // Reexecute case | |
2941 // return address is the pc describes what bci to do re-execute at | |
2942 | |
2943 // No need to update map as each call to save_live_registers will produce identical oopmap | |
2944 (void) RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); | |
2945 | |
2946 __ movl(r14, Deoptimization::Unpack_reexecute); // callee-saved | |
2947 __ jmp(cont); | |
2948 | |
0 | 2949 int exception_offset = __ pc() - start; |
2950 | |
2951 // Prolog for exception case | |
2952 | |
304 | 2953 // all registers are dead at this entry point, except for rax, and |
2954 // rdx which contain the exception oop and exception pc | |
2955 // respectively. Set them in TLS and fall thru to the | |
2956 // unpack_with_exception_in_tls entry point. | |
2957 | |
2958 __ movptr(Address(r15_thread, JavaThread::exception_pc_offset()), rdx); | |
2959 __ movptr(Address(r15_thread, JavaThread::exception_oop_offset()), rax); | |
2960 | |
2961 int exception_in_tls_offset = __ pc() - start; | |
2962 | |
2963 // new implementation because exception oop is now passed in JavaThread | |
2964 | |
2965 // Prolog for exception case | |
2966 // All registers must be preserved because they might be used by LinearScan | |
2967 // Exceptiop oop and throwing PC are passed in JavaThread | |
2968 // tos: stack at point of call to method that threw the exception (i.e. only | |
2969 // args are on the stack, no return address) | |
2970 | |
2971 // make room on stack for the return address | |
2972 // It will be patched later with the throwing pc. The correct value is not | |
2973 // available now because loading it from memory would destroy registers. | |
2974 __ push(0); | |
0 | 2975 |
2976 // Save everything in sight. | |
4675
c2384f5b2e6e
Small changes to the deopt stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4661
diff
changeset
|
2977 RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); |
0 | 2978 |
304 | 2979 // Now it is safe to overwrite any register |
2980 | |
0 | 2981 // Deopt during an exception. Save exec mode for unpack_frames. |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
2982 __ movl(r14, Deoptimization::Unpack_exception); // callee-saved |
0 | 2983 |
304 | 2984 // load throwing pc from JavaThread and patch it as the return address |
2985 // of the current frame. Then clear the field in JavaThread | |
2986 | |
2987 __ movptr(rdx, Address(r15_thread, JavaThread::exception_pc_offset())); | |
2988 __ movptr(Address(rbp, wordSize), rdx); | |
2989 __ movptr(Address(r15_thread, JavaThread::exception_pc_offset()), (int32_t)NULL_WORD); | |
2990 | |
2991 #ifdef ASSERT | |
2992 // verify that there is really an exception oop in JavaThread | |
2993 __ movptr(rax, Address(r15_thread, JavaThread::exception_oop_offset())); | |
2994 __ verify_oop(rax); | |
2995 | |
2996 // verify that there is no pending exception | |
2997 Label no_pending_exception; | |
2998 __ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); | |
2999 __ testptr(rax, rax); | |
3000 __ jcc(Assembler::zero, no_pending_exception); | |
3001 __ stop("must not have pending exception here"); | |
3002 __ bind(no_pending_exception); | |
3003 #endif | |
3004 | |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2605
diff
changeset
|
3005 // (tw) Start of graal uncommon trap code. |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3006 __ jmp(cont); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3007 |
2605
98fa88528319
Deopt on implicit null pointer exception.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2491
diff
changeset
|
3008 int jmp_uncommon_trap_offset = __ pc() - start; |
98fa88528319
Deopt on implicit null pointer exception.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2491
diff
changeset
|
3009 __ pushptr(Address(r15_thread, in_bytes(JavaThread::ScratchA_offset()))); |
3509
28ba2439034f
recompile upon deoptimizations that are caused by runtime exceptions
Lukas Stadler <lukas.stadler@jku.at>
parents:
3464
diff
changeset
|
3010 __ movptr(rscratch1, 2); // InvalidateRecompile |
2605
98fa88528319
Deopt on implicit null pointer exception.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2491
diff
changeset
|
3011 |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3012 int uncommon_trap_offset = __ pc() - start; |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3013 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3014 // Warning: Duplicate code |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3015 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3016 // Save everything in sight. |
4675
c2384f5b2e6e
Small changes to the deopt stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4661
diff
changeset
|
3017 RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3018 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3019 // Normal deoptimization |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3020 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3021 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3022 // fetch_unroll_info needs to call last_java_frame() |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3023 __ set_last_Java_frame(noreg, noreg, NULL); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3024 |
2935
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
3025 |
2928
1e13559b112d
small fix in deopt stub, more branch prediction code
Lukas Stadler <lukas.stadler@jku.at>
parents:
2891
diff
changeset
|
3026 // __ movl(c_rarg1, (int32_t)Deoptimization::Unpack_reexecute); |
1e13559b112d
small fix in deopt stub, more branch prediction code
Lukas Stadler <lukas.stadler@jku.at>
parents:
2891
diff
changeset
|
3027 // __ movl(r14, c_rarg1); // save into r14 for later call to unpack_frames |
2935
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
3028 |
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
3029 assert(r10 == rscratch1, "scratch register should be r10"); |
4675
c2384f5b2e6e
Small changes to the deopt stub.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4661
diff
changeset
|
3030 __ movl(c_rarg1, Address(rsp, RegisterSaver::r10_offset_in_bytes())); |
2935
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
3031 __ orq(c_rarg1, ~(int32_t)Deoptimization::make_trap_request(Deoptimization::Reason_unreached, Deoptimization::Action_none)); |
9b8f30608e62
deoptimization action (invalidate, reprofile, ...)
Lukas Stadler <lukas.stadler@jku.at>
parents:
2928
diff
changeset
|
3032 __ notq(c_rarg1); |
2928
1e13559b112d
small fix in deopt stub, more branch prediction code
Lukas Stadler <lukas.stadler@jku.at>
parents:
2891
diff
changeset
|
3033 __ movl(r14, (int32_t)Deoptimization::Unpack_reexecute); |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3034 __ mov(c_rarg0, r15_thread); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3035 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::uncommon_trap))); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3036 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3037 // Need to have an oopmap that tells fetch_unroll_info where to |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3038 // find any register it might need. |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3039 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3040 oop_maps->add_gc_map( __ pc()-start, map->deep_copy()); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3041 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3042 __ reset_last_Java_frame(false, false); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3043 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3044 Label after_fetch_unroll_info_call; |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3045 __ jmp(after_fetch_unroll_info_call); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3046 |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3047 |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2605
diff
changeset
|
3048 // (tw) End of graal uncommon trap code. |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3049 |
0 | 3050 __ bind(cont); |
3051 | |
3052 // Call C code. Need thread and this frame, but NOT official VM entry | |
3053 // crud. We cannot block on this call, no GC can happen. | |
3054 // | |
3055 // UnrollBlock* fetch_unroll_info(JavaThread* thread) | |
3056 | |
3057 // fetch_unroll_info needs to call last_java_frame(). | |
3058 | |
3059 __ set_last_Java_frame(noreg, noreg, NULL); | |
3060 #ifdef ASSERT | |
3061 { Label L; | |
304 | 3062 __ cmpptr(Address(r15_thread, |
0 | 3063 JavaThread::last_Java_fp_offset()), |
304 | 3064 (int32_t)0); |
0 | 3065 __ jcc(Assembler::equal, L); |
3066 __ stop("SharedRuntime::generate_deopt_blob: last_Java_fp not cleared"); | |
3067 __ bind(L); | |
3068 } | |
3069 #endif // ASSERT | |
4661
9ae5048b9153
Call uncommon_trap instead of fetch_unroll_info to correctly revoke biased locks on deopt.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4137
diff
changeset
|
3070 |
304 | 3071 __ mov(c_rarg0, r15_thread); |
0 | 3072 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::fetch_unroll_info))); |
3073 | |
3074 // Need to have an oopmap that tells fetch_unroll_info where to | |
3075 // find any register it might need. | |
3076 oop_maps->add_gc_map(__ pc() - start, map); | |
3077 | |
3078 __ reset_last_Java_frame(false, false); | |
3079 | |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3080 __ bind(after_fetch_unroll_info_call); |
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3081 |
0 | 3082 // Load UnrollBlock* into rdi |
304 | 3083 __ mov(rdi, rax); |
3084 | |
3085 Label noException; | |
682
69aefafe69c1
6824463: deopt blob is testing wrong register on 64-bit x86
never
parents:
628
diff
changeset
|
3086 __ cmpl(r14, Deoptimization::Unpack_exception); // Was exception pending? |
304 | 3087 __ jcc(Assembler::notEqual, noException); |
3088 __ movptr(rax, Address(r15_thread, JavaThread::exception_oop_offset())); | |
3089 // QQQ this is useless it was NULL above | |
3090 __ movptr(rdx, Address(r15_thread, JavaThread::exception_pc_offset())); | |
3091 __ movptr(Address(r15_thread, JavaThread::exception_oop_offset()), (int32_t)NULL_WORD); | |
3092 __ movptr(Address(r15_thread, JavaThread::exception_pc_offset()), (int32_t)NULL_WORD); | |
3093 | |
3094 __ verify_oop(rax); | |
3095 | |
3096 // Overwrite the result registers with the exception results. | |
3097 __ movptr(Address(rsp, RegisterSaver::rax_offset_in_bytes()), rax); | |
3098 // I think this is useless | |
3099 __ movptr(Address(rsp, RegisterSaver::rdx_offset_in_bytes()), rdx); | |
3100 | |
3101 __ bind(noException); | |
0 | 3102 |
3103 // Only register save data is on the stack. | |
3104 // Now restore the result registers. Everything else is either dead | |
3105 // or captured in the vframeArray. | |
3106 RegisterSaver::restore_result_registers(masm); | |
3107 | |
3108 // All of the register save area has been popped of the stack. Only the | |
3109 // return address remains. | |
3110 | |
3111 // Pop all the frames we must move/replace. | |
3112 // | |
3113 // Frame picture (youngest to oldest) | |
3114 // 1: self-frame (no frame link) | |
3115 // 2: deopting frame (no frame link) | |
3116 // 3: caller of deopting frame (could be compiled/interpreted). | |
3117 // | |
3118 // Note: by leaving the return address of self-frame on the stack | |
3119 // and using the size of frame 2 to adjust the stack | |
3120 // when we are done the return to frame 3 will still be on the stack. | |
3121 | |
3122 // Pop deoptimized frame | |
3123 __ movl(rcx, Address(rdi, Deoptimization::UnrollBlock::size_of_deoptimized_frame_offset_in_bytes())); | |
304 | 3124 __ addptr(rsp, rcx); |
0 | 3125 |
3126 // rsp should be pointing at the return address to the caller (3) | |
3127 | |
3128 // Stack bang to make sure there's enough room for these interpreter frames. | |
3129 if (UseStackBanging) { | |
3130 __ movl(rbx, Address(rdi, Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes())); | |
3131 __ bang_stack_size(rbx, rcx); | |
3132 } | |
3133 | |
3134 // Load address of array of frame pcs into rcx | |
304 | 3135 __ movptr(rcx, Address(rdi, Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes())); |
0 | 3136 |
3137 // Trash the old pc | |
304 | 3138 __ addptr(rsp, wordSize); |
0 | 3139 |
3140 // Load address of array of frame sizes into rsi | |
304 | 3141 __ movptr(rsi, Address(rdi, Deoptimization::UnrollBlock::frame_sizes_offset_in_bytes())); |
0 | 3142 |
3143 // Load counter into rdx | |
3144 __ movl(rdx, Address(rdi, Deoptimization::UnrollBlock::number_of_frames_offset_in_bytes())); | |
3145 | |
3146 // Pick up the initial fp we should save | |
3931
5432047c7db7
7087445: Improve platform independence of JSR292 shared code
bdelsart
parents:
3442
diff
changeset
|
3147 __ movptr(rbp, Address(rdi, Deoptimization::UnrollBlock::initial_info_offset_in_bytes())); |
0 | 3148 |
3149 // Now adjust the caller's stack to make up for the extra locals | |
3150 // but record the original sp so that we can save it in the skeletal interpreter | |
3151 // frame and the stack walking of interpreter_sender will get the unextended sp | |
3152 // value and not the "real" sp value. | |
3153 | |
3154 const Register sender_sp = r8; | |
3155 | |
304 | 3156 __ mov(sender_sp, rsp); |
0 | 3157 __ movl(rbx, Address(rdi, |
3158 Deoptimization::UnrollBlock:: | |
3159 caller_adjustment_offset_in_bytes())); | |
304 | 3160 __ subptr(rsp, rbx); |
0 | 3161 |
3162 // Push interpreter frames in a loop | |
3163 Label loop; | |
3164 __ bind(loop); | |
304 | 3165 __ movptr(rbx, Address(rsi, 0)); // Load frame size |
3166 #ifdef CC_INTERP | |
3167 __ subptr(rbx, 4*wordSize); // we'll push pc and ebp by hand and | |
3168 #ifdef ASSERT | |
3169 __ push(0xDEADDEAD); // Make a recognizable pattern | |
3170 __ push(0xDEADDEAD); | |
3171 #else /* ASSERT */ | |
3172 __ subptr(rsp, 2*wordSize); // skip the "static long no_param" | |
3173 #endif /* ASSERT */ | |
3174 #else | |
3175 __ subptr(rbx, 2*wordSize); // We'll push pc and ebp by hand | |
3176 #endif // CC_INTERP | |
3177 __ pushptr(Address(rcx, 0)); // Save return address | |
0 | 3178 __ enter(); // Save old & set new ebp |
304 | 3179 __ subptr(rsp, rbx); // Prolog |
3180 #ifdef CC_INTERP | |
3181 __ movptr(Address(rbp, | |
3182 -(sizeof(BytecodeInterpreter)) + in_bytes(byte_offset_of(BytecodeInterpreter, _sender_sp))), | |
3183 sender_sp); // Make it walkable | |
3184 #else /* CC_INTERP */ | |
0 | 3185 // This value is corrected by layout_activation_impl |
304 | 3186 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD ); |
3187 __ movptr(Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize), sender_sp); // Make it walkable | |
3188 #endif /* CC_INTERP */ | |
3189 __ mov(sender_sp, rsp); // Pass sender_sp to next frame | |
3190 __ addptr(rsi, wordSize); // Bump array pointer (sizes) | |
3191 __ addptr(rcx, wordSize); // Bump array pointer (pcs) | |
0 | 3192 __ decrementl(rdx); // Decrement counter |
3193 __ jcc(Assembler::notZero, loop); | |
304 | 3194 __ pushptr(Address(rcx, 0)); // Save final return address |
0 | 3195 |
3196 // Re-push self-frame | |
3197 __ enter(); // Save old & set new ebp | |
3198 | |
3199 // Allocate a full sized register save area. | |
3200 // Return address and rbp are in place, so we allocate two less words. | |
304 | 3201 __ subptr(rsp, (frame_size_in_words - 2) * wordSize); |
0 | 3202 |
3203 // Restore frame locals after moving the frame | |
3204 __ movdbl(Address(rsp, RegisterSaver::xmm0_offset_in_bytes()), xmm0); | |
304 | 3205 __ movptr(Address(rsp, RegisterSaver::rax_offset_in_bytes()), rax); |
0 | 3206 |
3207 // Call C code. Need thread but NOT official VM entry | |
3208 // crud. We cannot block on this call, no GC can happen. Call should | |
3209 // restore return values to their stack-slots with the new SP. | |
3210 // | |
3211 // void Deoptimization::unpack_frames(JavaThread* thread, int exec_mode) | |
3212 | |
3213 // Use rbp because the frames look interpreted now | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3214 // Save "the_pc" since it cannot easily be retrieved using the last_java_SP after we aligned SP. |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3215 // Don't need the precise return PC here, just precise enough to point into this code blob. |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3216 address the_pc = __ pc(); |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3217 __ set_last_Java_frame(noreg, rbp, the_pc); |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3218 |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3219 __ andptr(rsp, -(StackAlignmentInBytes)); // Fix stack alignment as required by ABI |
304 | 3220 __ mov(c_rarg0, r15_thread); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
3221 __ movl(c_rarg1, r14); // second arg: exec_mode |
0 | 3222 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames))); |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3223 // Revert SP alignment after call since we're going to do some SP relative addressing below |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3224 __ movptr(rsp, Address(r15_thread, JavaThread::last_Java_sp_offset())); |
0 | 3225 |
3226 // Set an oopmap for the call site | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3227 // Use the same PC we used for the last java frame |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3228 oop_maps->add_gc_map(the_pc - start, |
0 | 3229 new OopMap( frame_size_in_words, 0 )); |
3230 | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3231 // Clear fp AND pc |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3232 __ reset_last_Java_frame(true, true); |
0 | 3233 |
3234 // Collect return values | |
3235 __ movdbl(xmm0, Address(rsp, RegisterSaver::xmm0_offset_in_bytes())); | |
304 | 3236 __ movptr(rax, Address(rsp, RegisterSaver::rax_offset_in_bytes())); |
3237 // I think this is useless (throwing pc?) | |
3238 __ movptr(rdx, Address(rsp, RegisterSaver::rdx_offset_in_bytes())); | |
0 | 3239 |
3240 // Pop self-frame. | |
3241 __ leave(); // Epilog | |
3242 | |
3243 // Jump to interpreter | |
3244 __ ret(0); | |
3245 | |
3246 // Make sure all code is generated | |
3247 masm->flush(); | |
3248 | |
304 | 3249 _deopt_blob = DeoptimizationBlob::create(&buffer, oop_maps, 0, exception_offset, reexecute_offset, frame_size_in_words); |
3250 _deopt_blob->set_unpack_with_exception_in_tls_offset(exception_in_tls_offset); | |
2059
9508a52cbd32
Add deoptimization blob support.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1972
diff
changeset
|
3251 _deopt_blob->set_uncommon_trap_offset(uncommon_trap_offset); |
2605
98fa88528319
Deopt on implicit null pointer exception.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2491
diff
changeset
|
3252 _deopt_blob->set_jmp_uncommon_trap_offset(jmp_uncommon_trap_offset); |
0 | 3253 } |
3254 | |
3255 #ifdef COMPILER2 | |
3256 //------------------------------generate_uncommon_trap_blob-------------------- | |
3257 void SharedRuntime::generate_uncommon_trap_blob() { | |
3258 // Allocate space for the code | |
3259 ResourceMark rm; | |
3260 // Setup code generation tools | |
3261 CodeBuffer buffer("uncommon_trap_blob", 2048, 1024); | |
3262 MacroAssembler* masm = new MacroAssembler(&buffer); | |
3263 | |
3264 assert(SimpleRuntimeFrame::framesize % 4 == 0, "sp not 16-byte aligned"); | |
3265 | |
3266 address start = __ pc(); | |
3267 | |
3268 // Push self-frame. We get here with a return address on the | |
3269 // stack, so rsp is 8-byte aligned until we allocate our frame. | |
304 | 3270 __ subptr(rsp, SimpleRuntimeFrame::return_off << LogBytesPerInt); // Epilog! |
0 | 3271 |
3272 // No callee saved registers. rbp is assumed implicitly saved | |
304 | 3273 __ movptr(Address(rsp, SimpleRuntimeFrame::rbp_off << LogBytesPerInt), rbp); |
0 | 3274 |
3275 // compiler left unloaded_class_index in j_rarg0 move to where the | |
3276 // runtime expects it. | |
3277 __ movl(c_rarg1, j_rarg0); | |
3278 | |
3279 __ set_last_Java_frame(noreg, noreg, NULL); | |
3280 | |
3281 // Call C code. Need thread but NOT official VM entry | |
3282 // crud. We cannot block on this call, no GC can happen. Call should | |
3283 // capture callee-saved registers as well as return values. | |
3284 // Thread is in rdi already. | |
3285 // | |
3286 // UnrollBlock* uncommon_trap(JavaThread* thread, jint unloaded_class_index); | |
3287 | |
304 | 3288 __ mov(c_rarg0, r15_thread); |
0 | 3289 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::uncommon_trap))); |
3290 | |
3291 // Set an oopmap for the call site | |
3292 OopMapSet* oop_maps = new OopMapSet(); | |
3293 OopMap* map = new OopMap(SimpleRuntimeFrame::framesize, 0); | |
3294 | |
3295 // location of rbp is known implicitly by the frame sender code | |
3296 | |
3297 oop_maps->add_gc_map(__ pc() - start, map); | |
3298 | |
3299 __ reset_last_Java_frame(false, false); | |
3300 | |
3301 // Load UnrollBlock* into rdi | |
304 | 3302 __ mov(rdi, rax); |
0 | 3303 |
3304 // Pop all the frames we must move/replace. | |
3305 // | |
3306 // Frame picture (youngest to oldest) | |
3307 // 1: self-frame (no frame link) | |
3308 // 2: deopting frame (no frame link) | |
3309 // 3: caller of deopting frame (could be compiled/interpreted). | |
3310 | |
3311 // Pop self-frame. We have no frame, and must rely only on rax and rsp. | |
304 | 3312 __ addptr(rsp, (SimpleRuntimeFrame::framesize - 2) << LogBytesPerInt); // Epilog! |
0 | 3313 |
3314 // Pop deoptimized frame (int) | |
3315 __ movl(rcx, Address(rdi, | |
3316 Deoptimization::UnrollBlock:: | |
3317 size_of_deoptimized_frame_offset_in_bytes())); | |
304 | 3318 __ addptr(rsp, rcx); |
0 | 3319 |
3320 // rsp should be pointing at the return address to the caller (3) | |
3321 | |
3322 // Stack bang to make sure there's enough room for these interpreter frames. | |
3323 if (UseStackBanging) { | |
3324 __ movl(rbx, Address(rdi ,Deoptimization::UnrollBlock::total_frame_sizes_offset_in_bytes())); | |
3325 __ bang_stack_size(rbx, rcx); | |
3326 } | |
3327 | |
3328 // Load address of array of frame pcs into rcx (address*) | |
304 | 3329 __ movptr(rcx, |
3330 Address(rdi, | |
3331 Deoptimization::UnrollBlock::frame_pcs_offset_in_bytes())); | |
0 | 3332 |
3333 // Trash the return pc | |
304 | 3334 __ addptr(rsp, wordSize); |
0 | 3335 |
3336 // Load address of array of frame sizes into rsi (intptr_t*) | |
304 | 3337 __ movptr(rsi, Address(rdi, |
3338 Deoptimization::UnrollBlock:: | |
3339 frame_sizes_offset_in_bytes())); | |
0 | 3340 |
3341 // Counter | |
3342 __ movl(rdx, Address(rdi, | |
3343 Deoptimization::UnrollBlock:: | |
3344 number_of_frames_offset_in_bytes())); // (int) | |
3345 | |
3346 // Pick up the initial fp we should save | |
304 | 3347 __ movptr(rbp, |
3348 Address(rdi, | |
3931
5432047c7db7
7087445: Improve platform independence of JSR292 shared code
bdelsart
parents:
3442
diff
changeset
|
3349 Deoptimization::UnrollBlock::initial_info_offset_in_bytes())); |
0 | 3350 |
3351 // Now adjust the caller's stack to make up for the extra locals but | |
3352 // record the original sp so that we can save it in the skeletal | |
3353 // interpreter frame and the stack walking of interpreter_sender | |
3354 // will get the unextended sp value and not the "real" sp value. | |
3355 | |
3356 const Register sender_sp = r8; | |
3357 | |
304 | 3358 __ mov(sender_sp, rsp); |
0 | 3359 __ movl(rbx, Address(rdi, |
3360 Deoptimization::UnrollBlock:: | |
3361 caller_adjustment_offset_in_bytes())); // (int) | |
304 | 3362 __ subptr(rsp, rbx); |
0 | 3363 |
3364 // Push interpreter frames in a loop | |
3365 Label loop; | |
3366 __ bind(loop); | |
304 | 3367 __ movptr(rbx, Address(rsi, 0)); // Load frame size |
3368 __ subptr(rbx, 2 * wordSize); // We'll push pc and rbp by hand | |
3369 __ pushptr(Address(rcx, 0)); // Save return address | |
3370 __ enter(); // Save old & set new rbp | |
3371 __ subptr(rsp, rbx); // Prolog | |
520
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3372 #ifdef CC_INTERP |
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3373 __ movptr(Address(rbp, |
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3374 -(sizeof(BytecodeInterpreter)) + in_bytes(byte_offset_of(BytecodeInterpreter, _sender_sp))), |
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3375 sender_sp); // Make it walkable |
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3376 #else // CC_INTERP |
304 | 3377 __ movptr(Address(rbp, frame::interpreter_frame_sender_sp_offset * wordSize), |
3378 sender_sp); // Make it walkable | |
0 | 3379 // This value is corrected by layout_activation_impl |
304 | 3380 __ movptr(Address(rbp, frame::interpreter_frame_last_sp_offset * wordSize), (int32_t)NULL_WORD ); |
520
52a431267315
6791168: Fix invalid code in bytecodeInterpreter that can cause gcc ICE
coleenp
parents:
304
diff
changeset
|
3381 #endif // CC_INTERP |
304 | 3382 __ mov(sender_sp, rsp); // Pass sender_sp to next frame |
3383 __ addptr(rsi, wordSize); // Bump array pointer (sizes) | |
3384 __ addptr(rcx, wordSize); // Bump array pointer (pcs) | |
3385 __ decrementl(rdx); // Decrement counter | |
0 | 3386 __ jcc(Assembler::notZero, loop); |
304 | 3387 __ pushptr(Address(rcx, 0)); // Save final return address |
0 | 3388 |
3389 // Re-push self-frame | |
3390 __ enter(); // Save old & set new rbp | |
304 | 3391 __ subptr(rsp, (SimpleRuntimeFrame::framesize - 4) << LogBytesPerInt); |
0 | 3392 // Prolog |
3393 | |
3394 // Use rbp because the frames look interpreted now | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3395 // Save "the_pc" since it cannot easily be retrieved using the last_java_SP after we aligned SP. |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3396 // Don't need the precise return PC here, just precise enough to point into this code blob. |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3397 address the_pc = __ pc(); |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3398 __ set_last_Java_frame(noreg, rbp, the_pc); |
0 | 3399 |
3400 // Call C code. Need thread but NOT official VM entry | |
3401 // crud. We cannot block on this call, no GC can happen. Call should | |
3402 // restore return values to their stack-slots with the new SP. | |
3403 // Thread is in rdi already. | |
3404 // | |
3405 // BasicType unpack_frames(JavaThread* thread, int exec_mode); | |
3406 | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3407 __ andptr(rsp, -(StackAlignmentInBytes)); // Align SP as required by ABI |
304 | 3408 __ mov(c_rarg0, r15_thread); |
0 | 3409 __ movl(c_rarg1, Deoptimization::Unpack_uncommon_trap); |
3410 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, Deoptimization::unpack_frames))); | |
3411 | |
3412 // Set an oopmap for the call site | |
4057
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3413 // Use the same PC we used for the last java frame |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3414 oop_maps->add_gc_map(the_pc - start, new OopMap(SimpleRuntimeFrame::framesize, 0)); |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3415 |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3416 // Clear fp AND pc |
1feb272af3a7
6636110: unaligned stackpointer leads to crash during deoptimization
never
parents:
3931
diff
changeset
|
3417 __ reset_last_Java_frame(true, true); |
0 | 3418 |
3419 // Pop self-frame. | |
3420 __ leave(); // Epilog | |
3421 | |
3422 // Jump to interpreter | |
3423 __ ret(0); | |
3424 | |
3425 // Make sure all code is generated | |
3426 masm->flush(); | |
3427 | |
3428 _uncommon_trap_blob = UncommonTrapBlob::create(&buffer, oop_maps, | |
3429 SimpleRuntimeFrame::framesize >> 1); | |
3430 } | |
3431 #endif // COMPILER2 | |
3432 | |
3433 | |
3434 //------------------------------generate_handler_blob------ | |
3435 // | |
3436 // Generate a special Compile2Runtime blob that saves all registers, | |
3437 // and setup oopmap. | |
3438 // | |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3363
diff
changeset
|
3439 SafepointBlob* SharedRuntime::generate_handler_blob(address call_ptr, bool cause_return) { |
0 | 3440 assert(StubRoutines::forward_exception_entry() != NULL, |
3441 "must be generated before"); | |
3442 | |
3443 ResourceMark rm; | |
3444 OopMapSet *oop_maps = new OopMapSet(); | |
3445 OopMap* map; | |
3446 | |
3447 // Allocate space for the code. Setup code generation tools. | |
3448 CodeBuffer buffer("handler_blob", 2048, 1024); | |
3449 MacroAssembler* masm = new MacroAssembler(&buffer); | |
3450 | |
3451 address start = __ pc(); | |
3452 address call_pc = NULL; | |
3453 int frame_size_in_words; | |
3454 | |
3455 // Make room for return address (or push it again) | |
3456 if (!cause_return) { | |
304 | 3457 __ push(rbx); |
0 | 3458 } |
3459 | |
3460 // Save registers, fpu state, and flags | |
3461 map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); | |
3462 | |
3463 // The following is basically a call_VM. However, we need the precise | |
3464 // address of the call in order to generate an oopmap. Hence, we do all the | |
3465 // work outselves. | |
3466 | |
3467 __ set_last_Java_frame(noreg, noreg, NULL); | |
3468 | |
3469 // The return address must always be correct so that frame constructor never | |
3470 // sees an invalid pc. | |
3471 | |
3472 if (!cause_return) { | |
3473 // overwrite the dummy value we pushed on entry | |
304 | 3474 __ movptr(c_rarg0, Address(r15_thread, JavaThread::saved_exception_pc_offset())); |
3475 __ movptr(Address(rbp, wordSize), c_rarg0); | |
0 | 3476 } |
3477 | |
3478 // Do the call | |
304 | 3479 __ mov(c_rarg0, r15_thread); |
0 | 3480 __ call(RuntimeAddress(call_ptr)); |
3481 | |
3482 // Set an oopmap for the call site. This oopmap will map all | |
3483 // oop-registers and debug-info registers as callee-saved. This | |
3484 // will allow deoptimization at this safepoint to find all possible | |
3485 // debug-info recordings, as well as let GC find all oops. | |
3486 | |
3487 oop_maps->add_gc_map( __ pc() - start, map); | |
3488 | |
3489 Label noException; | |
3490 | |
3491 __ reset_last_Java_frame(false, false); | |
3492 | |
304 | 3493 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 3494 __ jcc(Assembler::equal, noException); |
3495 | |
3496 // Exception pending | |
3497 | |
3498 RegisterSaver::restore_live_registers(masm); | |
3499 | |
3500 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); | |
3501 | |
3502 // No exception case | |
3503 __ bind(noException); | |
3504 | |
3505 // Normal exit, restore registers and exit. | |
3506 RegisterSaver::restore_live_registers(masm); | |
3507 | |
3508 __ ret(0); | |
3509 | |
3510 // Make sure all code is generated | |
3511 masm->flush(); | |
3512 | |
3513 // Fill-out other meta info | |
3514 return SafepointBlob::create(&buffer, oop_maps, frame_size_in_words); | |
3515 } | |
3516 | |
3517 // | |
3518 // generate_resolve_blob - call resolution (static/virtual/opt-virtual/ic-miss | |
3519 // | |
3520 // Generate a stub that calls into vm to find out the proper destination | |
3521 // of a java call. All the argument registers are live at this point | |
3522 // but since this is generic code we don't know what they are and the caller | |
3523 // must do any gc of the args. | |
3524 // | |
3442
f7d55ea6ee56
7045514: SPARC assembly code for JSR 292 ricochet frames
never
parents:
3363
diff
changeset
|
3525 RuntimeStub* SharedRuntime::generate_resolve_blob(address destination, const char* name) { |
0 | 3526 assert (StubRoutines::forward_exception_entry() != NULL, "must be generated before"); |
3527 | |
3528 // allocate space for the code | |
3529 ResourceMark rm; | |
3530 | |
3531 CodeBuffer buffer(name, 1000, 512); | |
3532 MacroAssembler* masm = new MacroAssembler(&buffer); | |
3533 | |
3534 int frame_size_in_words; | |
3535 | |
3536 OopMapSet *oop_maps = new OopMapSet(); | |
3537 OopMap* map = NULL; | |
3538 | |
3539 int start = __ offset(); | |
3540 | |
3541 map = RegisterSaver::save_live_registers(masm, 0, &frame_size_in_words); | |
3542 | |
3543 int frame_complete = __ offset(); | |
3544 | |
3545 __ set_last_Java_frame(noreg, noreg, NULL); | |
3546 | |
304 | 3547 __ mov(c_rarg0, r15_thread); |
0 | 3548 |
3549 __ call(RuntimeAddress(destination)); | |
3550 | |
3551 | |
3552 // Set an oopmap for the call site. | |
3553 // We need this not only for callee-saved registers, but also for volatile | |
3554 // registers that the compiler might be keeping live across a safepoint. | |
3555 | |
3556 oop_maps->add_gc_map( __ offset() - start, map); | |
3557 | |
3558 // rax contains the address we are going to jump to assuming no exception got installed | |
3559 | |
3560 // clear last_Java_sp | |
3561 __ reset_last_Java_frame(false, false); | |
3562 // check for pending exceptions | |
3563 Label pending; | |
304 | 3564 __ cmpptr(Address(r15_thread, Thread::pending_exception_offset()), (int32_t)NULL_WORD); |
0 | 3565 __ jcc(Assembler::notEqual, pending); |
3566 | |
3567 // get the returned methodOop | |
304 | 3568 __ movptr(rbx, Address(r15_thread, JavaThread::vm_result_offset())); |
3569 __ movptr(Address(rsp, RegisterSaver::rbx_offset_in_bytes()), rbx); | |
3570 | |
3571 __ movptr(Address(rsp, RegisterSaver::rax_offset_in_bytes()), rax); | |
0 | 3572 |
3573 RegisterSaver::restore_live_registers(masm); | |
3574 | |
3575 // We are back the the original state on entry and ready to go. | |
3576 | |
3577 __ jmp(rax); | |
3578 | |
3579 // Pending exception after the safepoint | |
3580 | |
3581 __ bind(pending); | |
3582 | |
3583 RegisterSaver::restore_live_registers(masm); | |
3584 | |
3585 // exception pending => remove activation and forward to exception handler | |
3586 | |
3587 __ movptr(Address(r15_thread, JavaThread::vm_result_offset()), (int)NULL_WORD); | |
3588 | |
304 | 3589 __ movptr(rax, Address(r15_thread, Thread::pending_exception_offset())); |
0 | 3590 __ jump(RuntimeAddress(StubRoutines::forward_exception_entry())); |
3591 | |
3592 // ------------- | |
3593 // make sure all code is generated | |
3594 masm->flush(); | |
3595 | |
3596 // return the blob | |
3597 // frame_size_words or bytes?? | |
3598 return RuntimeStub::new_runtime_stub(name, &buffer, frame_complete, frame_size_in_words, oop_maps, true); | |
3599 } | |
3600 | |
3601 | |
3602 #ifdef COMPILER2 | |
3603 // This is here instead of runtime_x86_64.cpp because it uses SimpleRuntimeFrame | |
3604 // | |
3605 //------------------------------generate_exception_blob--------------------------- | |
3606 // creates exception blob at the end | |
3607 // Using exception blob, this code is jumped from a compiled method. | |
3608 // (see emit_exception_handler in x86_64.ad file) | |
3609 // | |
3610 // Given an exception pc at a call we call into the runtime for the | |
3611 // handler in this method. This handler might merely restore state | |
3612 // (i.e. callee save registers) unwind the frame and jump to the | |
3613 // exception handler for the nmethod if there is no Java level handler | |
3614 // for the nmethod. | |
3615 // | |
3616 // This code is entered with a jmp. | |
3617 // | |
3618 // Arguments: | |
3619 // rax: exception oop | |
3620 // rdx: exception pc | |
3621 // | |
3622 // Results: | |
3623 // rax: exception oop | |
3624 // rdx: exception pc in caller or ??? | |
3625 // destination: exception handler of caller | |
3626 // | |
3627 // Note: the exception pc MUST be at a call (precise debug information) | |
3628 // Registers rax, rdx, rcx, rsi, rdi, r8-r11 are not callee saved. | |
3629 // | |
3630 | |
3631 void OptoRuntime::generate_exception_blob() { | |
3632 assert(!OptoRuntime::is_callee_saved_register(RDX_num), ""); | |
3633 assert(!OptoRuntime::is_callee_saved_register(RAX_num), ""); | |
3634 assert(!OptoRuntime::is_callee_saved_register(RCX_num), ""); | |
3635 | |
3636 assert(SimpleRuntimeFrame::framesize % 4 == 0, "sp not 16-byte aligned"); | |
3637 | |
3638 // Allocate space for the code | |
3639 ResourceMark rm; | |
3640 // Setup code generation tools | |
3641 CodeBuffer buffer("exception_blob", 2048, 1024); | |
3642 MacroAssembler* masm = new MacroAssembler(&buffer); | |
3643 | |
3644 | |
3645 address start = __ pc(); | |
3646 | |
3647 // Exception pc is 'return address' for stack walker | |
304 | 3648 __ push(rdx); |
3649 __ subptr(rsp, SimpleRuntimeFrame::return_off << LogBytesPerInt); // Prolog | |
0 | 3650 |
3651 // Save callee-saved registers. See x86_64.ad. | |
3652 | |
3653 // rbp is an implicitly saved callee saved register (i.e. the calling | |
3654 // convention will save restore it in prolog/epilog) Other than that | |
3655 // there are no callee save registers now that adapter frames are gone. | |
3656 | |
304 | 3657 __ movptr(Address(rsp, SimpleRuntimeFrame::rbp_off << LogBytesPerInt), rbp); |
0 | 3658 |
3659 // Store exception in Thread object. We cannot pass any arguments to the | |
3660 // handle_exception call, since we do not want to make any assumption | |
3661 // about the size of the frame where the exception happened in. | |
3662 // c_rarg0 is either rdi (Linux) or rcx (Windows). | |
304 | 3663 __ movptr(Address(r15_thread, JavaThread::exception_oop_offset()),rax); |
3664 __ movptr(Address(r15_thread, JavaThread::exception_pc_offset()), rdx); | |
0 | 3665 |
3666 // This call does all the hard work. It checks if an exception handler | |
3667 // exists in the method. | |
3668 // If so, it returns the handler address. | |
3669 // If not, it prepares for stack-unwinding, restoring the callee-save | |
3670 // registers of the frame being removed. | |
3671 // | |
3672 // address OptoRuntime::handle_exception_C(JavaThread* thread) | |
3673 | |
3674 __ set_last_Java_frame(noreg, noreg, NULL); | |
304 | 3675 __ mov(c_rarg0, r15_thread); |
0 | 3676 __ call(RuntimeAddress(CAST_FROM_FN_PTR(address, OptoRuntime::handle_exception_C))); |
3677 | |
3678 // Set an oopmap for the call site. This oopmap will only be used if we | |
3679 // are unwinding the stack. Hence, all locations will be dead. | |
3680 // Callee-saved registers will be the same as the frame above (i.e., | |
3681 // handle_exception_stub), since they were restored when we got the | |
3682 // exception. | |
3683 | |
3684 OopMapSet* oop_maps = new OopMapSet(); | |
3685 | |
3686 oop_maps->add_gc_map( __ pc()-start, new OopMap(SimpleRuntimeFrame::framesize, 0)); | |
3687 | |
3688 __ reset_last_Java_frame(false, false); | |
3689 | |
3690 // Restore callee-saved registers | |
3691 | |
3692 // rbp is an implicitly saved callee saved register (i.e. the calling | |
3693 // convention will save restore it in prolog/epilog) Other than that | |
3694 // there are no callee save registers no that adapter frames are gone. | |
3695 | |
304 | 3696 __ movptr(rbp, Address(rsp, SimpleRuntimeFrame::rbp_off << LogBytesPerInt)); |
3697 | |
3698 __ addptr(rsp, SimpleRuntimeFrame::return_off << LogBytesPerInt); // Epilog | |
3699 __ pop(rdx); // No need for exception pc anymore | |
0 | 3700 |
3701 // rax: exception handler | |
3702 | |
1368
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1187
diff
changeset
|
3703 // Restore SP from BP if the exception PC is a MethodHandle call site. |
93767e6a2dfd
6941529: SharedRuntime::raw_exception_handler_for_return_address must reset thread MethodHandle flag
twisti
parents:
1187
diff
changeset
|
3704 __ cmpl(Address(r15_thread, JavaThread::is_method_handle_return_offset()), 0); |
1567 | 3705 __ cmovptr(Assembler::notEqual, rsp, rbp_mh_SP_save); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
848
diff
changeset
|
3706 |
0 | 3707 // We have a handler in rax (could be deopt blob). |
304 | 3708 __ mov(r8, rax); |
0 | 3709 |
3710 // Get the exception oop | |
304 | 3711 __ movptr(rax, Address(r15_thread, JavaThread::exception_oop_offset())); |
0 | 3712 // Get the exception pc in case we are deoptimized |
304 | 3713 __ movptr(rdx, Address(r15_thread, JavaThread::exception_pc_offset())); |
0 | 3714 #ifdef ASSERT |
3715 __ movptr(Address(r15_thread, JavaThread::exception_handler_pc_offset()), (int)NULL_WORD); | |
3716 __ movptr(Address(r15_thread, JavaThread::exception_pc_offset()), (int)NULL_WORD); | |
3717 #endif | |
3718 // Clear the exception oop so GC no longer processes it as a root. | |
3719 __ movptr(Address(r15_thread, JavaThread::exception_oop_offset()), (int)NULL_WORD); | |
3720 | |
3721 // rax: exception oop | |
3722 // r8: exception handler | |
3723 // rdx: exception pc | |
3724 // Jump to handler | |
3725 | |
3726 __ jmp(r8); | |
3727 | |
3728 // Make sure all code is generated | |
3729 masm->flush(); | |
3730 | |
3731 // Set exception blob | |
3732 _exception_blob = ExceptionBlob::create(&buffer, oop_maps, SimpleRuntimeFrame::framesize >> 1); | |
3733 } | |
3734 #endif // COMPILER2 |