Mercurial > hg > truffle
annotate src/cpu/zero/vm/frame_zero.cpp @ 5182:70aaaa83b93a
fixed gcc warning; added note to README_GRAAL about disabling the bootstrap step
author | Doug Simon <doug.simon@oracle.com> |
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date | Mon, 02 Apr 2012 12:19:18 +0200 |
parents | 5dbed2f542ff |
children | da91efe96a93 |
rev | line source |
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1010 | 1 /* |
1972 | 2 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2007, 2008, 2009, 2010, 2011 Red Hat, Inc. |
1010 | 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 * | |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
1010 | 23 * |
24 */ | |
25 | |
1972 | 26 #include "precompiled.hpp" |
27 #include "code/scopeDesc.hpp" | |
28 #include "interpreter/interpreter.hpp" | |
29 #include "interpreter/interpreterRuntime.hpp" | |
30 #include "memory/resourceArea.hpp" | |
31 #include "oops/markOop.hpp" | |
32 #include "oops/methodOop.hpp" | |
33 #include "oops/oop.inline.hpp" | |
34 #include "runtime/frame.inline.hpp" | |
35 #include "runtime/handles.inline.hpp" | |
36 #include "runtime/javaCalls.hpp" | |
37 #include "runtime/monitorChunk.hpp" | |
38 #include "runtime/signature.hpp" | |
39 #include "runtime/stubCodeGenerator.hpp" | |
40 #include "runtime/stubRoutines.hpp" | |
41 #include "vmreg_zero.inline.hpp" | |
42 #ifdef COMPILER1 | |
43 #include "c1/c1_Runtime1.hpp" | |
44 #include "runtime/vframeArray.hpp" | |
45 #endif | |
1010 | 46 |
47 #ifdef ASSERT | |
48 void RegisterMap::check_location_valid() { | |
49 ShouldNotCallThis(); | |
50 } | |
51 #endif | |
52 | |
53 bool frame::is_interpreted_frame() const { | |
54 return zeroframe()->is_interpreter_frame(); | |
55 } | |
56 | |
1512 | 57 bool frame::is_fake_stub_frame() const { |
58 return zeroframe()->is_fake_stub_frame(); | |
59 } | |
60 | |
1010 | 61 frame frame::sender_for_entry_frame(RegisterMap *map) const { |
1078 | 62 assert(zeroframe()->is_entry_frame(), "wrong type of frame"); |
1010 | 63 assert(map != NULL, "map must be set"); |
64 assert(!entry_frame_is_first(), "next Java fp must be non zero"); | |
65 assert(entry_frame_call_wrapper()->anchor()->last_Java_sp() == sender_sp(), | |
66 "sender should be next Java frame"); | |
67 map->clear(); | |
68 assert(map->include_argument_oops(), "should be set by clear"); | |
1505 | 69 return frame(zeroframe()->next(), sender_sp()); |
1010 | 70 } |
71 | |
1078 | 72 frame frame::sender_for_nonentry_frame(RegisterMap *map) const { |
73 assert(zeroframe()->is_interpreter_frame() || | |
74 zeroframe()->is_shark_frame() || | |
75 zeroframe()->is_fake_stub_frame(), "wrong type of frame"); | |
1505 | 76 return frame(zeroframe()->next(), sender_sp()); |
1010 | 77 } |
78 | |
79 frame frame::sender(RegisterMap* map) const { | |
80 // Default is not to follow arguments; the various | |
81 // sender_for_xxx methods update this accordingly. | |
82 map->set_include_argument_oops(false); | |
83 | |
84 if (is_entry_frame()) | |
85 return sender_for_entry_frame(map); | |
1078 | 86 else |
87 return sender_for_nonentry_frame(map); | |
1010 | 88 } |
89 | |
90 #ifdef CC_INTERP | |
91 BasicObjectLock* frame::interpreter_frame_monitor_begin() const { | |
92 return get_interpreterState()->monitor_base(); | |
93 } | |
94 | |
95 BasicObjectLock* frame::interpreter_frame_monitor_end() const { | |
96 return (BasicObjectLock*) get_interpreterState()->stack_base(); | |
97 } | |
98 #endif // CC_INTERP | |
99 | |
100 void frame::patch_pc(Thread* thread, address pc) { | |
101 // We borrow this call to set the thread pointer in the interpreter | |
102 // state; the hook to set up deoptimized frames isn't supplied it. | |
103 assert(pc == NULL, "should be"); | |
104 get_interpreterState()->set_thread((JavaThread *) thread); | |
105 } | |
106 | |
107 bool frame::safe_for_sender(JavaThread *thread) { | |
108 ShouldNotCallThis(); | |
109 } | |
110 | |
111 void frame::pd_gc_epilog() { | |
112 } | |
113 | |
114 bool frame::is_interpreted_frame_valid(JavaThread *thread) const { | |
115 ShouldNotCallThis(); | |
116 } | |
117 | |
118 BasicType frame::interpreter_frame_result(oop* oop_result, | |
119 jvalue* value_result) { | |
120 assert(is_interpreted_frame(), "interpreted frame expected"); | |
121 methodOop method = interpreter_frame_method(); | |
122 BasicType type = method->result_type(); | |
123 intptr_t* tos_addr = (intptr_t *) interpreter_frame_tos_address(); | |
124 oop obj; | |
125 | |
126 switch (type) { | |
127 case T_VOID: | |
128 break; | |
129 case T_BOOLEAN: | |
130 value_result->z = *(jboolean *) tos_addr; | |
131 break; | |
132 case T_BYTE: | |
133 value_result->b = *(jbyte *) tos_addr; | |
134 break; | |
135 case T_CHAR: | |
136 value_result->c = *(jchar *) tos_addr; | |
137 break; | |
138 case T_SHORT: | |
139 value_result->s = *(jshort *) tos_addr; | |
140 break; | |
141 case T_INT: | |
142 value_result->i = *(jint *) tos_addr; | |
143 break; | |
144 case T_LONG: | |
145 value_result->j = *(jlong *) tos_addr; | |
146 break; | |
147 case T_FLOAT: | |
148 value_result->f = *(jfloat *) tos_addr; | |
149 break; | |
150 case T_DOUBLE: | |
151 value_result->d = *(jdouble *) tos_addr; | |
152 break; | |
153 | |
154 case T_OBJECT: | |
155 case T_ARRAY: | |
156 if (method->is_native()) { | |
157 obj = get_interpreterState()->oop_temp(); | |
158 } | |
159 else { | |
160 oop* obj_p = (oop *) tos_addr; | |
161 obj = (obj_p == NULL) ? (oop) NULL : *obj_p; | |
162 } | |
163 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); | |
164 *oop_result = obj; | |
165 break; | |
166 | |
167 default: | |
168 ShouldNotReachHere(); | |
169 } | |
170 | |
171 return type; | |
172 } | |
173 | |
174 int frame::frame_size(RegisterMap* map) const { | |
175 #ifdef PRODUCT | |
176 ShouldNotCallThis(); | |
177 #else | |
178 return 0; // make javaVFrame::print_value work | |
179 #endif // PRODUCT | |
180 } | |
181 | |
182 intptr_t* frame::interpreter_frame_tos_at(jint offset) const { | |
183 int index = (Interpreter::expr_offset_in_bytes(offset) / wordSize); | |
184 return &interpreter_frame_tos_address()[index]; | |
185 } | |
186 | |
187 void frame::zero_print_on_error(int frame_index, | |
188 outputStream* st, | |
189 char* buf, | |
190 int buflen) const { | |
191 // Divide the buffer between the field and the value | |
192 buflen >>= 1; | |
193 char *fieldbuf = buf; | |
194 char *valuebuf = buf + buflen; | |
195 | |
196 // Print each word of the frame | |
1505 | 197 for (intptr_t *addr = sp(); addr <= fp(); addr++) { |
198 int offset = fp() - addr; | |
1010 | 199 |
200 // Fill in default values, then try and improve them | |
201 snprintf(fieldbuf, buflen, "word[%d]", offset); | |
202 snprintf(valuebuf, buflen, PTR_FORMAT, *addr); | |
203 zeroframe()->identify_word(frame_index, offset, fieldbuf, valuebuf, buflen); | |
204 fieldbuf[buflen - 1] = '\0'; | |
205 valuebuf[buflen - 1] = '\0'; | |
206 | |
207 // Print the result | |
208 st->print_cr(" " PTR_FORMAT ": %-21s = %s", addr, fieldbuf, valuebuf); | |
209 } | |
210 } | |
211 | |
212 void ZeroFrame::identify_word(int frame_index, | |
213 int offset, | |
214 char* fieldbuf, | |
215 char* valuebuf, | |
216 int buflen) const { | |
217 switch (offset) { | |
218 case next_frame_off: | |
219 strncpy(fieldbuf, "next_frame", buflen); | |
220 break; | |
221 | |
222 case frame_type_off: | |
223 strncpy(fieldbuf, "frame_type", buflen); | |
224 if (is_entry_frame()) | |
225 strncpy(valuebuf, "ENTRY_FRAME", buflen); | |
226 else if (is_interpreter_frame()) | |
227 strncpy(valuebuf, "INTERPRETER_FRAME", buflen); | |
228 else if (is_shark_frame()) | |
229 strncpy(valuebuf, "SHARK_FRAME", buflen); | |
230 else if (is_fake_stub_frame()) | |
231 strncpy(valuebuf, "FAKE_STUB_FRAME", buflen); | |
232 break; | |
233 | |
234 default: | |
235 if (is_entry_frame()) { | |
236 as_entry_frame()->identify_word( | |
237 frame_index, offset, fieldbuf, valuebuf, buflen); | |
238 } | |
239 else if (is_interpreter_frame()) { | |
240 as_interpreter_frame()->identify_word( | |
241 frame_index, offset, fieldbuf, valuebuf, buflen); | |
242 } | |
243 else if (is_shark_frame()) { | |
244 as_shark_frame()->identify_word( | |
245 frame_index, offset, fieldbuf, valuebuf, buflen); | |
246 } | |
247 else if (is_fake_stub_frame()) { | |
248 as_fake_stub_frame()->identify_word( | |
249 frame_index, offset, fieldbuf, valuebuf, buflen); | |
250 } | |
251 } | |
252 } | |
253 | |
254 void EntryFrame::identify_word(int frame_index, | |
255 int offset, | |
256 char* fieldbuf, | |
257 char* valuebuf, | |
258 int buflen) const { | |
259 switch (offset) { | |
260 case call_wrapper_off: | |
261 strncpy(fieldbuf, "call_wrapper", buflen); | |
262 break; | |
263 | |
264 default: | |
265 snprintf(fieldbuf, buflen, "local[%d]", offset - 3); | |
266 } | |
267 } | |
268 | |
269 void InterpreterFrame::identify_word(int frame_index, | |
270 int offset, | |
271 char* fieldbuf, | |
272 char* valuebuf, | |
273 int buflen) const { | |
274 interpreterState istate = interpreter_state(); | |
275 bool is_valid = istate->self_link() == istate; | |
276 intptr_t *addr = addr_of_word(offset); | |
277 | |
278 // Fixed part | |
279 if (addr >= (intptr_t *) istate) { | |
280 const char *field = istate->name_of_field_at_address((address) addr); | |
281 if (field) { | |
282 if (is_valid && !strcmp(field, "_method")) { | |
283 istate->method()->name_and_sig_as_C_string(valuebuf, buflen); | |
284 } | |
285 else if (is_valid && !strcmp(field, "_bcp") && istate->bcp()) { | |
286 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
287 (intptr_t) istate->bcp(), | |
288 istate->method()->bci_from(istate->bcp())); | |
289 } | |
290 snprintf(fieldbuf, buflen, "%sistate->%s", | |
291 field[strlen(field) - 1] == ')' ? "(": "", field); | |
292 } | |
293 else if (addr == (intptr_t *) istate) { | |
294 strncpy(fieldbuf, "(vtable for istate)", buflen); | |
295 } | |
296 return; | |
297 } | |
298 | |
299 // Variable part | |
300 if (!is_valid) | |
301 return; | |
302 | |
303 // JNI stuff | |
304 if (istate->method()->is_native() && addr < istate->stack_base()) { | |
305 address hA = istate->method()->signature_handler(); | |
306 if (hA != NULL) { | |
307 if (hA != (address) InterpreterRuntime::slow_signature_handler) { | |
308 InterpreterRuntime::SignatureHandler *handler = | |
309 InterpreterRuntime::SignatureHandler::from_handlerAddr(hA); | |
310 | |
311 intptr_t *params = istate->stack_base() - handler->argument_count(); | |
312 if (addr >= params) { | |
313 int param = addr - params; | |
314 const char *desc = ""; | |
315 if (param == 0) | |
316 desc = " (JNIEnv)"; | |
317 else if (param == 1) { | |
318 if (istate->method()->is_static()) | |
319 desc = " (mirror)"; | |
320 else | |
321 desc = " (this)"; | |
322 } | |
323 snprintf(fieldbuf, buflen, "parameter[%d]%s", param, desc); | |
324 return; | |
325 } | |
326 | |
327 for (int i = 0; i < handler->argument_count(); i++) { | |
328 if (params[i] == (intptr_t) addr) { | |
329 snprintf(fieldbuf, buflen, "unboxed parameter[%d]", i); | |
330 return; | |
331 } | |
332 } | |
333 } | |
334 } | |
335 return; | |
336 } | |
337 | |
338 // Monitors and stack | |
339 identify_vp_word(frame_index, addr, | |
340 (intptr_t *) istate->monitor_base(), | |
341 istate->stack_base(), | |
342 fieldbuf, buflen); | |
343 } | |
344 | |
345 void SharkFrame::identify_word(int frame_index, | |
346 int offset, | |
347 char* fieldbuf, | |
348 char* valuebuf, | |
349 int buflen) const { | |
350 // Fixed part | |
351 switch (offset) { | |
352 case pc_off: | |
353 strncpy(fieldbuf, "pc", buflen); | |
354 if (method()->is_oop()) { | |
355 nmethod *code = method()->code(); | |
356 if (code && code->pc_desc_at(pc())) { | |
357 SimpleScopeDesc ssd(code, pc()); | |
358 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
359 (intptr_t) pc(), ssd.bci()); | |
360 } | |
361 } | |
362 return; | |
363 | |
364 case unextended_sp_off: | |
365 strncpy(fieldbuf, "unextended_sp", buflen); | |
366 return; | |
367 | |
368 case method_off: | |
369 strncpy(fieldbuf, "method", buflen); | |
370 if (method()->is_oop()) { | |
371 method()->name_and_sig_as_C_string(valuebuf, buflen); | |
372 } | |
373 return; | |
374 | |
375 case oop_tmp_off: | |
376 strncpy(fieldbuf, "oop_tmp", buflen); | |
377 return; | |
378 } | |
379 | |
380 // Variable part | |
381 if (method()->is_oop()) { | |
382 identify_vp_word(frame_index, addr_of_word(offset), | |
383 addr_of_word(header_words + 1), | |
384 unextended_sp() + method()->max_stack(), | |
385 fieldbuf, buflen); | |
386 } | |
387 } | |
388 | |
389 void ZeroFrame::identify_vp_word(int frame_index, | |
390 intptr_t* addr, | |
391 intptr_t* monitor_base, | |
392 intptr_t* stack_base, | |
393 char* fieldbuf, | |
394 int buflen) const { | |
395 // Monitors | |
396 if (addr >= stack_base && addr < monitor_base) { | |
397 int monitor_size = frame::interpreter_frame_monitor_size(); | |
398 int last_index = (monitor_base - stack_base) / monitor_size - 1; | |
399 int index = last_index - (addr - stack_base) / monitor_size; | |
400 intptr_t monitor = (intptr_t) ( | |
401 (BasicObjectLock *) monitor_base - 1 - index); | |
402 intptr_t offset = (intptr_t) addr - monitor; | |
403 | |
404 if (offset == BasicObjectLock::obj_offset_in_bytes()) | |
405 snprintf(fieldbuf, buflen, "monitor[%d]->_obj", index); | |
406 else if (offset == BasicObjectLock::lock_offset_in_bytes()) | |
407 snprintf(fieldbuf, buflen, "monitor[%d]->_lock", index); | |
408 | |
409 return; | |
410 } | |
411 | |
412 // Expression stack | |
413 if (addr < stack_base) { | |
414 snprintf(fieldbuf, buflen, "%s[%d]", | |
415 frame_index == 0 ? "stack_word" : "local", | |
416 (int) (stack_base - addr - 1)); | |
417 return; | |
418 } | |
419 } | |
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420 |
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421 #ifndef PRODUCT |
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422 |
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423 void frame::describe_pd(FrameValues& values, int frame_no) { |
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424 |
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425 } |
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426 |
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427 #endif |
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428 |
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429 intptr_t *frame::initial_deoptimization_info() { |
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430 // unused... but returns fp() to minimize changes introduced by 7087445 |
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431 return fp(); |
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432 } |
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433 |