Mercurial > hg > truffle
comparison src/cpu/ppc/vm/frame_ppc.cpp @ 14408:ec28f9c041ff
8019972: PPC64 (part 9): platform files for interpreter only VM.
Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs.
Reviewed-by: kvn
author | goetz |
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date | Fri, 02 Aug 2013 16:46:45 +0200 |
parents | |
children | 018b357638aa |
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14407:94c202aa2646 | 14408:ec28f9c041ff |
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1 /* | |
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. | |
3 * Copyright 2012, 2013 SAP AG. All rights reserved. | |
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
5 * | |
6 * This code is free software; you can redistribute it and/or modify it | |
7 * under the terms of the GNU General Public License version 2 only, as | |
8 * published by the Free Software Foundation. | |
9 * | |
10 * This code is distributed in the hope that it will be useful, but WITHOUT | |
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 * version 2 for more details (a copy is included in the LICENSE file that | |
14 * accompanied this code). | |
15 * | |
16 * You should have received a copy of the GNU General Public License version | |
17 * 2 along with this work; if not, write to the Free Software Foundation, | |
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
19 * | |
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
21 * or visit www.oracle.com if you need additional information or have any | |
22 * questions. | |
23 * | |
24 */ | |
25 | |
26 #include "precompiled.hpp" | |
27 #include "interpreter/interpreter.hpp" | |
28 #include "memory/resourceArea.hpp" | |
29 #include "oops/markOop.hpp" | |
30 #include "oops/method.hpp" | |
31 #include "oops/oop.inline.hpp" | |
32 #include "runtime/frame.inline.hpp" | |
33 #include "runtime/handles.inline.hpp" | |
34 #include "runtime/javaCalls.hpp" | |
35 #include "runtime/monitorChunk.hpp" | |
36 #include "runtime/signature.hpp" | |
37 #include "runtime/stubCodeGenerator.hpp" | |
38 #include "runtime/stubRoutines.hpp" | |
39 #include "vmreg_ppc.inline.hpp" | |
40 #ifdef COMPILER1 | |
41 #include "c1/c1_Runtime1.hpp" | |
42 #include "runtime/vframeArray.hpp" | |
43 #endif | |
44 | |
45 #ifndef CC_INTERP | |
46 #error "CC_INTERP must be defined on PPC64" | |
47 #endif | |
48 | |
49 #ifdef ASSERT | |
50 void RegisterMap::check_location_valid() { | |
51 } | |
52 #endif // ASSERT | |
53 | |
54 bool frame::safe_for_sender(JavaThread *thread) { | |
55 bool safe = false; | |
56 address cursp = (address)sp(); | |
57 address curfp = (address)fp(); | |
58 if ((cursp != NULL && curfp != NULL && | |
59 (cursp <= thread->stack_base() && cursp >= thread->stack_base() - thread->stack_size())) && | |
60 (curfp <= thread->stack_base() && curfp >= thread->stack_base() - thread->stack_size())) { | |
61 safe = true; | |
62 } | |
63 return safe; | |
64 } | |
65 | |
66 bool frame::is_interpreted_frame() const { | |
67 return Interpreter::contains(pc()); | |
68 } | |
69 | |
70 frame frame::sender_for_entry_frame(RegisterMap *map) const { | |
71 assert(map != NULL, "map must be set"); | |
72 // Java frame called from C; skip all C frames and return top C | |
73 // frame of that chunk as the sender. | |
74 JavaFrameAnchor* jfa = entry_frame_call_wrapper()->anchor(); | |
75 assert(!entry_frame_is_first(), "next Java fp must be non zero"); | |
76 assert(jfa->last_Java_sp() > _sp, "must be above this frame on stack"); | |
77 map->clear(); | |
78 assert(map->include_argument_oops(), "should be set by clear"); | |
79 | |
80 if (jfa->last_Java_pc() != NULL) { | |
81 frame fr(jfa->last_Java_sp(), jfa->last_Java_pc()); | |
82 return fr; | |
83 } | |
84 // Last_java_pc is not set, if we come here from compiled code. The | |
85 // constructor retrieves the PC from the stack. | |
86 frame fr(jfa->last_Java_sp()); | |
87 return fr; | |
88 } | |
89 | |
90 frame frame::sender_for_interpreter_frame(RegisterMap *map) const { | |
91 // Pass callers initial_caller_sp as unextended_sp. | |
92 return frame(sender_sp(), sender_pc(), (intptr_t*)((parent_ijava_frame_abi *)callers_abi())->initial_caller_sp); | |
93 } | |
94 | |
95 frame frame::sender_for_compiled_frame(RegisterMap *map) const { | |
96 assert(map != NULL, "map must be set"); | |
97 | |
98 // Frame owned by compiler. | |
99 address pc = *compiled_sender_pc_addr(_cb); | |
100 frame caller(compiled_sender_sp(_cb), pc); | |
101 | |
102 // Now adjust the map. | |
103 | |
104 // Get the rest. | |
105 if (map->update_map()) { | |
106 // Tell GC to use argument oopmaps for some runtime stubs that need it. | |
107 map->set_include_argument_oops(_cb->caller_must_gc_arguments(map->thread())); | |
108 if (_cb->oop_maps() != NULL) { | |
109 OopMapSet::update_register_map(this, map); | |
110 } | |
111 } | |
112 | |
113 return caller; | |
114 } | |
115 | |
116 intptr_t* frame::compiled_sender_sp(CodeBlob* cb) const { | |
117 return sender_sp(); | |
118 } | |
119 | |
120 address* frame::compiled_sender_pc_addr(CodeBlob* cb) const { | |
121 return sender_pc_addr(); | |
122 } | |
123 | |
124 frame frame::sender(RegisterMap* map) const { | |
125 // Default is we do have to follow them. The sender_for_xxx will | |
126 // update it accordingly. | |
127 map->set_include_argument_oops(false); | |
128 | |
129 if (is_entry_frame()) return sender_for_entry_frame(map); | |
130 if (is_interpreted_frame()) return sender_for_interpreter_frame(map); | |
131 assert(_cb == CodeCache::find_blob(pc()),"Must be the same"); | |
132 | |
133 if (_cb != NULL) { | |
134 return sender_for_compiled_frame(map); | |
135 } | |
136 // Must be native-compiled frame, i.e. the marshaling code for native | |
137 // methods that exists in the core system. | |
138 return frame(sender_sp(), sender_pc()); | |
139 } | |
140 | |
141 void frame::patch_pc(Thread* thread, address pc) { | |
142 if (TracePcPatching) { | |
143 tty->print_cr("patch_pc at address " PTR_FORMAT " [" PTR_FORMAT " -> " PTR_FORMAT "]", | |
144 &((address*) _sp)[-1], ((address*) _sp)[-1], pc); | |
145 } | |
146 own_abi()->lr = (uint64_t)pc; | |
147 _cb = CodeCache::find_blob(pc); | |
148 if (_cb != NULL && _cb->is_nmethod() && ((nmethod*)_cb)->is_deopt_pc(_pc)) { | |
149 address orig = (((nmethod*)_cb)->get_original_pc(this)); | |
150 assert(orig == _pc, "expected original to be stored before patching"); | |
151 _deopt_state = is_deoptimized; | |
152 // Leave _pc as is. | |
153 } else { | |
154 _deopt_state = not_deoptimized; | |
155 _pc = pc; | |
156 } | |
157 } | |
158 | |
159 void frame::pd_gc_epilog() { | |
160 if (is_interpreted_frame()) { | |
161 // Set constant pool cache entry for interpreter. | |
162 Method* m = interpreter_frame_method(); | |
163 | |
164 *interpreter_frame_cpoolcache_addr() = m->constants()->cache(); | |
165 } | |
166 } | |
167 | |
168 bool frame::is_interpreted_frame_valid(JavaThread* thread) const { | |
169 // Is there anything to do? | |
170 assert(is_interpreted_frame(), "Not an interpreted frame"); | |
171 return true; | |
172 } | |
173 | |
174 BasicType frame::interpreter_frame_result(oop* oop_result, jvalue* value_result) { | |
175 assert(is_interpreted_frame(), "interpreted frame expected"); | |
176 Method* method = interpreter_frame_method(); | |
177 BasicType type = method->result_type(); | |
178 | |
179 #ifdef CC_INTERP | |
180 if (method->is_native()) { | |
181 // Prior to calling into the runtime to notify the method exit the possible | |
182 // result value is saved into the interpreter frame. | |
183 interpreterState istate = get_interpreterState(); | |
184 address lresult = (address)istate + in_bytes(BytecodeInterpreter::native_lresult_offset()); | |
185 address fresult = (address)istate + in_bytes(BytecodeInterpreter::native_fresult_offset()); | |
186 | |
187 switch (method->result_type()) { | |
188 case T_OBJECT: | |
189 case T_ARRAY: { | |
190 oop* obj_p = *(oop**)lresult; | |
191 oop obj = (obj_p == NULL) ? NULL : *obj_p; | |
192 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); | |
193 *oop_result = obj; | |
194 break; | |
195 } | |
196 // We use std/stfd to store the values. | |
197 case T_BOOLEAN : value_result->z = (jboolean) *(unsigned long*)lresult; break; | |
198 case T_INT : value_result->i = (jint) *(long*)lresult; break; | |
199 case T_CHAR : value_result->c = (jchar) *(unsigned long*)lresult; break; | |
200 case T_SHORT : value_result->s = (jshort) *(long*)lresult; break; | |
201 case T_BYTE : value_result->z = (jbyte) *(long*)lresult; break; | |
202 case T_LONG : value_result->j = (jlong) *(long*)lresult; break; | |
203 case T_FLOAT : value_result->f = (jfloat) *(double*)fresult; break; | |
204 case T_DOUBLE : value_result->d = (jdouble) *(double*)fresult; break; | |
205 case T_VOID : /* Nothing to do */ break; | |
206 default : ShouldNotReachHere(); | |
207 } | |
208 } else { | |
209 intptr_t* tos_addr = interpreter_frame_tos_address(); | |
210 switch (method->result_type()) { | |
211 case T_OBJECT: | |
212 case T_ARRAY: { | |
213 oop obj = *(oop*)tos_addr; | |
214 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); | |
215 *oop_result = obj; | |
216 } | |
217 case T_BOOLEAN : value_result->z = (jboolean) *(jint*)tos_addr; break; | |
218 case T_BYTE : value_result->b = (jbyte) *(jint*)tos_addr; break; | |
219 case T_CHAR : value_result->c = (jchar) *(jint*)tos_addr; break; | |
220 case T_SHORT : value_result->s = (jshort) *(jint*)tos_addr; break; | |
221 case T_INT : value_result->i = *(jint*)tos_addr; break; | |
222 case T_LONG : value_result->j = *(jlong*)tos_addr; break; | |
223 case T_FLOAT : value_result->f = *(jfloat*)tos_addr; break; | |
224 case T_DOUBLE : value_result->d = *(jdouble*)tos_addr; break; | |
225 case T_VOID : /* Nothing to do */ break; | |
226 default : ShouldNotReachHere(); | |
227 } | |
228 } | |
229 #else | |
230 Unimplemented(); | |
231 #endif | |
232 return type; | |
233 } | |
234 | |
235 #ifndef PRODUCT | |
236 | |
237 void frame::describe_pd(FrameValues& values, int frame_no) { | |
238 if (is_interpreted_frame()) { | |
239 #ifdef CC_INTERP | |
240 interpreterState istate = get_interpreterState(); | |
241 values.describe(frame_no, (intptr_t*)istate, "istate"); | |
242 values.describe(frame_no, (intptr_t*)&(istate->_thread), " thread"); | |
243 values.describe(frame_no, (intptr_t*)&(istate->_bcp), " bcp"); | |
244 values.describe(frame_no, (intptr_t*)&(istate->_locals), " locals"); | |
245 values.describe(frame_no, (intptr_t*)&(istate->_constants), " constants"); | |
246 values.describe(frame_no, (intptr_t*)&(istate->_method), err_msg(" method = %s", istate->_method->name_and_sig_as_C_string())); | |
247 values.describe(frame_no, (intptr_t*)&(istate->_mdx), " mdx"); | |
248 values.describe(frame_no, (intptr_t*)&(istate->_stack), " stack"); | |
249 values.describe(frame_no, (intptr_t*)&(istate->_msg), err_msg(" msg = %s", BytecodeInterpreter::C_msg(istate->_msg))); | |
250 values.describe(frame_no, (intptr_t*)&(istate->_result), " result"); | |
251 values.describe(frame_no, (intptr_t*)&(istate->_prev_link), " prev_link"); | |
252 values.describe(frame_no, (intptr_t*)&(istate->_oop_temp), " oop_temp"); | |
253 values.describe(frame_no, (intptr_t*)&(istate->_stack_base), " stack_base"); | |
254 values.describe(frame_no, (intptr_t*)&(istate->_stack_limit), " stack_limit"); | |
255 values.describe(frame_no, (intptr_t*)&(istate->_monitor_base), " monitor_base"); | |
256 values.describe(frame_no, (intptr_t*)&(istate->_frame_bottom), " frame_bottom"); | |
257 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_pc), " last_Java_pc"); | |
258 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_fp), " last_Java_fp"); | |
259 values.describe(frame_no, (intptr_t*)&(istate->_last_Java_sp), " last_Java_sp"); | |
260 values.describe(frame_no, (intptr_t*)&(istate->_self_link), " self_link"); | |
261 values.describe(frame_no, (intptr_t*)&(istate->_native_fresult), " native_fresult"); | |
262 values.describe(frame_no, (intptr_t*)&(istate->_native_lresult), " native_lresult"); | |
263 #else | |
264 Unimplemented(); | |
265 #endif | |
266 } | |
267 } | |
268 #endif | |
269 | |
270 void frame::adjust_unextended_sp() { | |
271 // If we are returning to a compiled MethodHandle call site, the | |
272 // saved_fp will in fact be a saved value of the unextended SP. The | |
273 // simplest way to tell whether we are returning to such a call site | |
274 // is as follows: | |
275 | |
276 if (is_compiled_frame() && false /*is_at_mh_callsite()*/) { // TODO PPC port | |
277 // If the sender PC is a deoptimization point, get the original | |
278 // PC. For MethodHandle call site the unextended_sp is stored in | |
279 // saved_fp. | |
280 _unextended_sp = _fp - _cb->frame_size(); | |
281 | |
282 #ifdef ASSERT | |
283 nmethod *sender_nm = _cb->as_nmethod_or_null(); | |
284 assert(sender_nm && *_sp == *_unextended_sp, "backlink changed"); | |
285 | |
286 intptr_t* sp = _unextended_sp; // check if stack can be walked from here | |
287 for (int x = 0; x < 5; ++x) { // check up to a couple of backlinks | |
288 intptr_t* prev_sp = *(intptr_t**)sp; | |
289 if (prev_sp == 0) break; // end of stack | |
290 assert(prev_sp>sp, "broken stack"); | |
291 sp = prev_sp; | |
292 } | |
293 | |
294 if (sender_nm->is_deopt_mh_entry(_pc)) { // checks for deoptimization | |
295 address original_pc = sender_nm->get_original_pc(this); | |
296 assert(sender_nm->insts_contains(original_pc), "original PC must be in nmethod"); | |
297 assert(sender_nm->is_method_handle_return(original_pc), "must be"); | |
298 } | |
299 #endif | |
300 } | |
301 } | |
302 | |
303 intptr_t *frame::initial_deoptimization_info() { | |
304 // unused... but returns fp() to minimize changes introduced by 7087445 | |
305 return fp(); | |
306 } |