Mercurial > hg > graal-compiler
annotate src/cpu/x86/vm/c1_FrameMap_x86.cpp @ 1976:0fc262af204f
6780143: hs203t003 hits SIGSEGV/EXCEPTION_ACCESS_VIOLATION with -XX:+UseCompressedOops
Summary: Using r12 as temporary register around call_VM trashes heapbase becausecall_VM doesn't always return immediately to following code (eg forward_exception, popframe and early return support).
Reviewed-by: never, kvn
author | coleenp |
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date | Mon, 29 Nov 2010 15:43:36 -0500 |
parents | f95d63e2154a |
children | ac637b7220d1 |
rev | line source |
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0 | 1 /* |
1579 | 2 * Copyright (c) 1999, 2010, 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
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "c1/c1_FrameMap.hpp" | |
27 #include "c1/c1_LIR.hpp" | |
28 #include "runtime/sharedRuntime.hpp" | |
29 #include "vmreg_x86.inline.hpp" | |
0 | 30 |
31 const int FrameMap::pd_c_runtime_reserved_arg_size = 0; | |
32 | |
33 LIR_Opr FrameMap::map_to_opr(BasicType type, VMRegPair* reg, bool) { | |
34 LIR_Opr opr = LIR_OprFact::illegalOpr; | |
35 VMReg r_1 = reg->first(); | |
36 VMReg r_2 = reg->second(); | |
37 if (r_1->is_stack()) { | |
38 // Convert stack slot to an SP offset | |
39 // The calling convention does not count the SharedRuntime::out_preserve_stack_slots() value | |
40 // so we must add it in here. | |
41 int st_off = (r_1->reg2stack() + SharedRuntime::out_preserve_stack_slots()) * VMRegImpl::stack_slot_size; | |
42 opr = LIR_OprFact::address(new LIR_Address(rsp_opr, st_off, type)); | |
43 } else if (r_1->is_Register()) { | |
44 Register reg = r_1->as_Register(); | |
304 | 45 if (r_2->is_Register() && (type == T_LONG || type == T_DOUBLE)) { |
0 | 46 Register reg2 = r_2->as_Register(); |
304 | 47 #ifdef _LP64 |
48 assert(reg2 == reg, "must be same register"); | |
49 opr = as_long_opr(reg); | |
50 #else | |
0 | 51 opr = as_long_opr(reg2, reg); |
304 | 52 #endif // _LP64 |
53 } else if (type == T_OBJECT || type == T_ARRAY) { | |
0 | 54 opr = as_oop_opr(reg); |
55 } else { | |
56 opr = as_opr(reg); | |
57 } | |
58 } else if (r_1->is_FloatRegister()) { | |
59 assert(type == T_DOUBLE || type == T_FLOAT, "wrong type"); | |
60 int num = r_1->as_FloatRegister()->encoding(); | |
61 if (type == T_FLOAT) { | |
62 opr = LIR_OprFact::single_fpu(num); | |
63 } else { | |
64 opr = LIR_OprFact::double_fpu(num); | |
65 } | |
66 } else if (r_1->is_XMMRegister()) { | |
67 assert(type == T_DOUBLE || type == T_FLOAT, "wrong type"); | |
68 int num = r_1->as_XMMRegister()->encoding(); | |
69 if (type == T_FLOAT) { | |
70 opr = LIR_OprFact::single_xmm(num); | |
71 } else { | |
72 opr = LIR_OprFact::double_xmm(num); | |
73 } | |
74 } else { | |
75 ShouldNotReachHere(); | |
76 } | |
77 return opr; | |
78 } | |
79 | |
80 | |
81 LIR_Opr FrameMap::rsi_opr; | |
82 LIR_Opr FrameMap::rdi_opr; | |
83 LIR_Opr FrameMap::rbx_opr; | |
84 LIR_Opr FrameMap::rax_opr; | |
85 LIR_Opr FrameMap::rdx_opr; | |
86 LIR_Opr FrameMap::rcx_opr; | |
87 LIR_Opr FrameMap::rsp_opr; | |
88 LIR_Opr FrameMap::rbp_opr; | |
89 | |
90 LIR_Opr FrameMap::receiver_opr; | |
91 | |
92 LIR_Opr FrameMap::rsi_oop_opr; | |
93 LIR_Opr FrameMap::rdi_oop_opr; | |
94 LIR_Opr FrameMap::rbx_oop_opr; | |
95 LIR_Opr FrameMap::rax_oop_opr; | |
96 LIR_Opr FrameMap::rdx_oop_opr; | |
97 LIR_Opr FrameMap::rcx_oop_opr; | |
98 | |
304 | 99 LIR_Opr FrameMap::long0_opr; |
100 LIR_Opr FrameMap::long1_opr; | |
0 | 101 LIR_Opr FrameMap::fpu0_float_opr; |
102 LIR_Opr FrameMap::fpu0_double_opr; | |
103 LIR_Opr FrameMap::xmm0_float_opr; | |
104 LIR_Opr FrameMap::xmm0_double_opr; | |
105 | |
304 | 106 #ifdef _LP64 |
107 | |
108 LIR_Opr FrameMap::r8_opr; | |
109 LIR_Opr FrameMap::r9_opr; | |
110 LIR_Opr FrameMap::r10_opr; | |
111 LIR_Opr FrameMap::r11_opr; | |
112 LIR_Opr FrameMap::r12_opr; | |
113 LIR_Opr FrameMap::r13_opr; | |
114 LIR_Opr FrameMap::r14_opr; | |
115 LIR_Opr FrameMap::r15_opr; | |
116 | |
117 // r10 and r15 can never contain oops since they aren't available to | |
118 // the allocator | |
119 LIR_Opr FrameMap::r8_oop_opr; | |
120 LIR_Opr FrameMap::r9_oop_opr; | |
121 LIR_Opr FrameMap::r11_oop_opr; | |
122 LIR_Opr FrameMap::r12_oop_opr; | |
123 LIR_Opr FrameMap::r13_oop_opr; | |
124 LIR_Opr FrameMap::r14_oop_opr; | |
125 #endif // _LP64 | |
126 | |
0 | 127 LIR_Opr FrameMap::_caller_save_cpu_regs[] = { 0, }; |
128 LIR_Opr FrameMap::_caller_save_fpu_regs[] = { 0, }; | |
129 LIR_Opr FrameMap::_caller_save_xmm_regs[] = { 0, }; | |
130 | |
304 | 131 XMMRegister FrameMap::_xmm_regs [] = { 0, }; |
0 | 132 |
133 XMMRegister FrameMap::nr2xmmreg(int rnr) { | |
134 assert(_init_done, "tables not initialized"); | |
135 return _xmm_regs[rnr]; | |
136 } | |
137 | |
138 //-------------------------------------------------------- | |
139 // FrameMap | |
140 //-------------------------------------------------------- | |
141 | |
1584 | 142 void FrameMap::initialize() { |
143 assert(!_init_done, "once"); | |
0 | 144 |
304 | 145 assert(nof_cpu_regs == LP64_ONLY(16) NOT_LP64(8), "wrong number of CPU registers"); |
146 map_register(0, rsi); rsi_opr = LIR_OprFact::single_cpu(0); | |
147 map_register(1, rdi); rdi_opr = LIR_OprFact::single_cpu(1); | |
148 map_register(2, rbx); rbx_opr = LIR_OprFact::single_cpu(2); | |
149 map_register(3, rax); rax_opr = LIR_OprFact::single_cpu(3); | |
150 map_register(4, rdx); rdx_opr = LIR_OprFact::single_cpu(4); | |
151 map_register(5, rcx); rcx_opr = LIR_OprFact::single_cpu(5); | |
0 | 152 |
304 | 153 #ifndef _LP64 |
154 // The unallocatable registers are at the end | |
155 map_register(6, rsp); | |
156 map_register(7, rbp); | |
157 #else | |
158 map_register( 6, r8); r8_opr = LIR_OprFact::single_cpu(6); | |
159 map_register( 7, r9); r9_opr = LIR_OprFact::single_cpu(7); | |
160 map_register( 8, r11); r11_opr = LIR_OprFact::single_cpu(8); | |
161 map_register( 9, r12); r12_opr = LIR_OprFact::single_cpu(9); | |
162 map_register(10, r13); r13_opr = LIR_OprFact::single_cpu(10); | |
163 map_register(11, r14); r14_opr = LIR_OprFact::single_cpu(11); | |
164 // The unallocatable registers are at the end | |
165 map_register(12, r10); r10_opr = LIR_OprFact::single_cpu(12); | |
166 map_register(13, r15); r15_opr = LIR_OprFact::single_cpu(13); | |
167 map_register(14, rsp); | |
168 map_register(15, rbp); | |
169 #endif // _LP64 | |
170 | |
171 #ifdef _LP64 | |
172 long0_opr = LIR_OprFact::double_cpu(3 /*eax*/, 3 /*eax*/); | |
173 long1_opr = LIR_OprFact::double_cpu(2 /*ebx*/, 2 /*ebx*/); | |
174 #else | |
175 long0_opr = LIR_OprFact::double_cpu(3 /*eax*/, 4 /*edx*/); | |
176 long1_opr = LIR_OprFact::double_cpu(2 /*ebx*/, 5 /*ecx*/); | |
177 #endif // _LP64 | |
0 | 178 fpu0_float_opr = LIR_OprFact::single_fpu(0); |
179 fpu0_double_opr = LIR_OprFact::double_fpu(0); | |
180 xmm0_float_opr = LIR_OprFact::single_xmm(0); | |
181 xmm0_double_opr = LIR_OprFact::double_xmm(0); | |
182 | |
183 _caller_save_cpu_regs[0] = rsi_opr; | |
184 _caller_save_cpu_regs[1] = rdi_opr; | |
185 _caller_save_cpu_regs[2] = rbx_opr; | |
186 _caller_save_cpu_regs[3] = rax_opr; | |
187 _caller_save_cpu_regs[4] = rdx_opr; | |
188 _caller_save_cpu_regs[5] = rcx_opr; | |
189 | |
304 | 190 #ifdef _LP64 |
191 _caller_save_cpu_regs[6] = r8_opr; | |
192 _caller_save_cpu_regs[7] = r9_opr; | |
193 _caller_save_cpu_regs[8] = r11_opr; | |
194 _caller_save_cpu_regs[9] = r12_opr; | |
195 _caller_save_cpu_regs[10] = r13_opr; | |
196 _caller_save_cpu_regs[11] = r14_opr; | |
197 #endif // _LP64 | |
198 | |
0 | 199 |
200 _xmm_regs[0] = xmm0; | |
201 _xmm_regs[1] = xmm1; | |
202 _xmm_regs[2] = xmm2; | |
203 _xmm_regs[3] = xmm3; | |
204 _xmm_regs[4] = xmm4; | |
205 _xmm_regs[5] = xmm5; | |
206 _xmm_regs[6] = xmm6; | |
207 _xmm_regs[7] = xmm7; | |
208 | |
304 | 209 #ifdef _LP64 |
210 _xmm_regs[8] = xmm8; | |
211 _xmm_regs[9] = xmm9; | |
212 _xmm_regs[10] = xmm10; | |
213 _xmm_regs[11] = xmm11; | |
214 _xmm_regs[12] = xmm12; | |
215 _xmm_regs[13] = xmm13; | |
216 _xmm_regs[14] = xmm14; | |
217 _xmm_regs[15] = xmm15; | |
218 #endif // _LP64 | |
219 | |
0 | 220 for (int i = 0; i < 8; i++) { |
221 _caller_save_fpu_regs[i] = LIR_OprFact::single_fpu(i); | |
304 | 222 } |
223 | |
224 for (int i = 0; i < nof_caller_save_xmm_regs ; i++) { | |
0 | 225 _caller_save_xmm_regs[i] = LIR_OprFact::single_xmm(i); |
226 } | |
227 | |
228 _init_done = true; | |
229 | |
304 | 230 rsi_oop_opr = as_oop_opr(rsi); |
231 rdi_oop_opr = as_oop_opr(rdi); | |
232 rbx_oop_opr = as_oop_opr(rbx); | |
233 rax_oop_opr = as_oop_opr(rax); | |
234 rdx_oop_opr = as_oop_opr(rdx); | |
235 rcx_oop_opr = as_oop_opr(rcx); | |
236 | |
237 rsp_opr = as_pointer_opr(rsp); | |
238 rbp_opr = as_pointer_opr(rbp); | |
239 | |
240 #ifdef _LP64 | |
241 r8_oop_opr = as_oop_opr(r8); | |
242 r9_oop_opr = as_oop_opr(r9); | |
243 r11_oop_opr = as_oop_opr(r11); | |
244 r12_oop_opr = as_oop_opr(r12); | |
245 r13_oop_opr = as_oop_opr(r13); | |
246 r14_oop_opr = as_oop_opr(r14); | |
247 #endif // _LP64 | |
248 | |
0 | 249 VMRegPair regs; |
250 BasicType sig_bt = T_OBJECT; | |
251 SharedRuntime::java_calling_convention(&sig_bt, ®s, 1, true); | |
252 receiver_opr = as_oop_opr(regs.first()->as_Register()); | |
304 | 253 |
0 | 254 } |
255 | |
256 | |
257 Address FrameMap::make_new_address(ByteSize sp_offset) const { | |
258 // for rbp, based address use this: | |
259 // return Address(rbp, in_bytes(sp_offset) - (framesize() - 2) * 4); | |
260 return Address(rsp, in_bytes(sp_offset)); | |
261 } | |
262 | |
263 | |
264 // ----------------mapping----------------------- | |
265 // all mapping is based on rbp, addressing, except for simple leaf methods where we access | |
266 // the locals rsp based (and no frame is built) | |
267 | |
268 | |
269 // Frame for simple leaf methods (quick entries) | |
270 // | |
271 // +----------+ | |
272 // | ret addr | <- TOS | |
273 // +----------+ | |
274 // | args | | |
275 // | ...... | | |
276 | |
277 // Frame for standard methods | |
278 // | |
279 // | .........| <- TOS | |
280 // | locals | | |
281 // +----------+ | |
282 // | old rbp, | <- EBP | |
283 // +----------+ | |
284 // | ret addr | | |
285 // +----------+ | |
286 // | args | | |
287 // | .........| | |
288 | |
289 | |
290 // For OopMaps, map a local variable or spill index to an VMRegImpl name. | |
291 // This is the offset from sp() in the frame of the slot for the index, | |
292 // skewed by VMRegImpl::stack0 to indicate a stack location (vs.a register.) | |
293 // | |
294 // framesize + | |
295 // stack0 stack0 0 <- VMReg | |
296 // | | <registers> | | |
297 // ...........|..............|.............| | |
298 // 0 1 2 3 x x 4 5 6 ... | <- local indices | |
299 // ^ ^ sp() ( x x indicate link | |
300 // | | and return addr) | |
301 // arguments non-argument locals | |
302 | |
303 | |
304 VMReg FrameMap::fpu_regname (int n) { | |
305 // Return the OptoReg name for the fpu stack slot "n" | |
306 // A spilled fpu stack slot comprises to two single-word OptoReg's. | |
307 return as_FloatRegister(n)->as_VMReg(); | |
308 } | |
309 | |
310 LIR_Opr FrameMap::stack_pointer() { | |
311 return FrameMap::rsp_opr; | |
312 } | |
313 | |
314 | |
1564 | 315 // JSR 292 |
316 LIR_Opr FrameMap::method_handle_invoke_SP_save_opr() { | |
317 assert(rbp == rbp_mh_SP_save, "must be same register"); | |
318 return rbp_opr; | |
319 } | |
320 | |
321 | |
0 | 322 bool FrameMap::validate_frame() { |
323 return true; | |
324 } |