Mercurial > hg > graal-jvmci-8
comparison src/cpu/zero/vm/frame_zero.cpp @ 1010:354d3184f6b2
6890308: integrate zero assembler hotspot changes
Reviewed-by: never
Contributed-by: gbenson@redhat.com
author | never |
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date | Tue, 13 Oct 2009 12:04:21 -0700 |
parents | |
children | 8e7adf982378 |
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1009:03b336640699 | 1010:354d3184f6b2 |
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1 /* | |
2 * Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved. | |
3 * Copyright 2007, 2008, 2009 Red Hat, Inc. | |
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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
21 * CA 95054 USA or visit www.sun.com if you need additional information or | |
22 * have any questions. | |
23 * | |
24 */ | |
25 | |
26 #include "incls/_precompiled.incl" | |
27 #include "incls/_frame_zero.cpp.incl" | |
28 | |
29 #ifdef ASSERT | |
30 void RegisterMap::check_location_valid() { | |
31 ShouldNotCallThis(); | |
32 } | |
33 #endif | |
34 | |
35 bool frame::is_interpreted_frame() const { | |
36 return zeroframe()->is_interpreter_frame(); | |
37 } | |
38 | |
39 bool frame::is_fake_stub_frame() const { | |
40 return zeroframe()->is_fake_stub_frame(); | |
41 } | |
42 | |
43 frame frame::sender_for_entry_frame(RegisterMap *map) const { | |
44 assert(map != NULL, "map must be set"); | |
45 assert(!entry_frame_is_first(), "next Java fp must be non zero"); | |
46 assert(entry_frame_call_wrapper()->anchor()->last_Java_sp() == sender_sp(), | |
47 "sender should be next Java frame"); | |
48 map->clear(); | |
49 assert(map->include_argument_oops(), "should be set by clear"); | |
50 return frame(sender_sp(), sp() + 1); | |
51 } | |
52 | |
53 frame frame::sender_for_interpreter_frame(RegisterMap *map) const { | |
54 return frame(sender_sp(), sp() + 1); | |
55 } | |
56 | |
57 frame frame::sender_for_compiled_frame(RegisterMap *map) const { | |
58 return frame(sender_sp(), sp() + 1); | |
59 } | |
60 | |
61 frame frame::sender_for_fake_stub_frame(RegisterMap *map) const { | |
62 return frame(sender_sp(), sp() + 1); | |
63 } | |
64 | |
65 frame frame::sender(RegisterMap* map) const { | |
66 // Default is not to follow arguments; the various | |
67 // sender_for_xxx methods update this accordingly. | |
68 map->set_include_argument_oops(false); | |
69 | |
70 if (is_entry_frame()) | |
71 return sender_for_entry_frame(map); | |
72 | |
73 if (is_interpreted_frame()) | |
74 return sender_for_interpreter_frame(map); | |
75 | |
76 if (is_compiled_frame()) | |
77 return sender_for_compiled_frame(map); | |
78 | |
79 if (is_fake_stub_frame()) | |
80 return sender_for_fake_stub_frame(map); | |
81 | |
82 ShouldNotReachHere(); | |
83 } | |
84 | |
85 #ifdef CC_INTERP | |
86 BasicObjectLock* frame::interpreter_frame_monitor_begin() const { | |
87 return get_interpreterState()->monitor_base(); | |
88 } | |
89 | |
90 BasicObjectLock* frame::interpreter_frame_monitor_end() const { | |
91 return (BasicObjectLock*) get_interpreterState()->stack_base(); | |
92 } | |
93 #endif // CC_INTERP | |
94 | |
95 void frame::patch_pc(Thread* thread, address pc) { | |
96 // We borrow this call to set the thread pointer in the interpreter | |
97 // state; the hook to set up deoptimized frames isn't supplied it. | |
98 assert(pc == NULL, "should be"); | |
99 get_interpreterState()->set_thread((JavaThread *) thread); | |
100 } | |
101 | |
102 bool frame::safe_for_sender(JavaThread *thread) { | |
103 ShouldNotCallThis(); | |
104 } | |
105 | |
106 void frame::pd_gc_epilog() { | |
107 } | |
108 | |
109 bool frame::is_interpreted_frame_valid(JavaThread *thread) const { | |
110 ShouldNotCallThis(); | |
111 } | |
112 | |
113 BasicType frame::interpreter_frame_result(oop* oop_result, | |
114 jvalue* value_result) { | |
115 assert(is_interpreted_frame(), "interpreted frame expected"); | |
116 methodOop method = interpreter_frame_method(); | |
117 BasicType type = method->result_type(); | |
118 intptr_t* tos_addr = (intptr_t *) interpreter_frame_tos_address(); | |
119 oop obj; | |
120 | |
121 switch (type) { | |
122 case T_VOID: | |
123 break; | |
124 case T_BOOLEAN: | |
125 value_result->z = *(jboolean *) tos_addr; | |
126 break; | |
127 case T_BYTE: | |
128 value_result->b = *(jbyte *) tos_addr; | |
129 break; | |
130 case T_CHAR: | |
131 value_result->c = *(jchar *) tos_addr; | |
132 break; | |
133 case T_SHORT: | |
134 value_result->s = *(jshort *) tos_addr; | |
135 break; | |
136 case T_INT: | |
137 value_result->i = *(jint *) tos_addr; | |
138 break; | |
139 case T_LONG: | |
140 value_result->j = *(jlong *) tos_addr; | |
141 break; | |
142 case T_FLOAT: | |
143 value_result->f = *(jfloat *) tos_addr; | |
144 break; | |
145 case T_DOUBLE: | |
146 value_result->d = *(jdouble *) tos_addr; | |
147 break; | |
148 | |
149 case T_OBJECT: | |
150 case T_ARRAY: | |
151 if (method->is_native()) { | |
152 obj = get_interpreterState()->oop_temp(); | |
153 } | |
154 else { | |
155 oop* obj_p = (oop *) tos_addr; | |
156 obj = (obj_p == NULL) ? (oop) NULL : *obj_p; | |
157 } | |
158 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); | |
159 *oop_result = obj; | |
160 break; | |
161 | |
162 default: | |
163 ShouldNotReachHere(); | |
164 } | |
165 | |
166 return type; | |
167 } | |
168 | |
169 int frame::frame_size(RegisterMap* map) const { | |
170 #ifdef PRODUCT | |
171 ShouldNotCallThis(); | |
172 #else | |
173 return 0; // make javaVFrame::print_value work | |
174 #endif // PRODUCT | |
175 } | |
176 | |
177 intptr_t* frame::interpreter_frame_tos_at(jint offset) const { | |
178 int index = (Interpreter::expr_offset_in_bytes(offset) / wordSize); | |
179 return &interpreter_frame_tos_address()[index]; | |
180 } | |
181 | |
182 void frame::zero_print_on_error(int frame_index, | |
183 outputStream* st, | |
184 char* buf, | |
185 int buflen) const { | |
186 // Divide the buffer between the field and the value | |
187 buflen >>= 1; | |
188 char *fieldbuf = buf; | |
189 char *valuebuf = buf + buflen; | |
190 | |
191 // Print each word of the frame | |
192 for (intptr_t *addr = fp(); addr <= sp(); addr++) { | |
193 int offset = sp() - addr; | |
194 | |
195 // Fill in default values, then try and improve them | |
196 snprintf(fieldbuf, buflen, "word[%d]", offset); | |
197 snprintf(valuebuf, buflen, PTR_FORMAT, *addr); | |
198 zeroframe()->identify_word(frame_index, offset, fieldbuf, valuebuf, buflen); | |
199 fieldbuf[buflen - 1] = '\0'; | |
200 valuebuf[buflen - 1] = '\0'; | |
201 | |
202 // Print the result | |
203 st->print_cr(" " PTR_FORMAT ": %-21s = %s", addr, fieldbuf, valuebuf); | |
204 } | |
205 } | |
206 | |
207 void ZeroFrame::identify_word(int frame_index, | |
208 int offset, | |
209 char* fieldbuf, | |
210 char* valuebuf, | |
211 int buflen) const { | |
212 switch (offset) { | |
213 case next_frame_off: | |
214 strncpy(fieldbuf, "next_frame", buflen); | |
215 break; | |
216 | |
217 case frame_type_off: | |
218 strncpy(fieldbuf, "frame_type", buflen); | |
219 if (is_entry_frame()) | |
220 strncpy(valuebuf, "ENTRY_FRAME", buflen); | |
221 else if (is_interpreter_frame()) | |
222 strncpy(valuebuf, "INTERPRETER_FRAME", buflen); | |
223 else if (is_shark_frame()) | |
224 strncpy(valuebuf, "SHARK_FRAME", buflen); | |
225 else if (is_fake_stub_frame()) | |
226 strncpy(valuebuf, "FAKE_STUB_FRAME", buflen); | |
227 break; | |
228 | |
229 default: | |
230 if (is_entry_frame()) { | |
231 as_entry_frame()->identify_word( | |
232 frame_index, offset, fieldbuf, valuebuf, buflen); | |
233 } | |
234 else if (is_interpreter_frame()) { | |
235 as_interpreter_frame()->identify_word( | |
236 frame_index, offset, fieldbuf, valuebuf, buflen); | |
237 } | |
238 else if (is_shark_frame()) { | |
239 as_shark_frame()->identify_word( | |
240 frame_index, offset, fieldbuf, valuebuf, buflen); | |
241 } | |
242 else if (is_fake_stub_frame()) { | |
243 as_fake_stub_frame()->identify_word( | |
244 frame_index, offset, fieldbuf, valuebuf, buflen); | |
245 } | |
246 } | |
247 } | |
248 | |
249 void EntryFrame::identify_word(int frame_index, | |
250 int offset, | |
251 char* fieldbuf, | |
252 char* valuebuf, | |
253 int buflen) const { | |
254 switch (offset) { | |
255 case call_wrapper_off: | |
256 strncpy(fieldbuf, "call_wrapper", buflen); | |
257 break; | |
258 | |
259 default: | |
260 snprintf(fieldbuf, buflen, "local[%d]", offset - 3); | |
261 } | |
262 } | |
263 | |
264 void InterpreterFrame::identify_word(int frame_index, | |
265 int offset, | |
266 char* fieldbuf, | |
267 char* valuebuf, | |
268 int buflen) const { | |
269 interpreterState istate = interpreter_state(); | |
270 bool is_valid = istate->self_link() == istate; | |
271 intptr_t *addr = addr_of_word(offset); | |
272 | |
273 // Fixed part | |
274 if (addr >= (intptr_t *) istate) { | |
275 const char *field = istate->name_of_field_at_address((address) addr); | |
276 if (field) { | |
277 if (is_valid && !strcmp(field, "_method")) { | |
278 istate->method()->name_and_sig_as_C_string(valuebuf, buflen); | |
279 } | |
280 else if (is_valid && !strcmp(field, "_bcp") && istate->bcp()) { | |
281 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
282 (intptr_t) istate->bcp(), | |
283 istate->method()->bci_from(istate->bcp())); | |
284 } | |
285 snprintf(fieldbuf, buflen, "%sistate->%s", | |
286 field[strlen(field) - 1] == ')' ? "(": "", field); | |
287 } | |
288 else if (addr == (intptr_t *) istate) { | |
289 strncpy(fieldbuf, "(vtable for istate)", buflen); | |
290 } | |
291 return; | |
292 } | |
293 | |
294 // Variable part | |
295 if (!is_valid) | |
296 return; | |
297 | |
298 // JNI stuff | |
299 if (istate->method()->is_native() && addr < istate->stack_base()) { | |
300 address hA = istate->method()->signature_handler(); | |
301 if (hA != NULL) { | |
302 if (hA != (address) InterpreterRuntime::slow_signature_handler) { | |
303 InterpreterRuntime::SignatureHandler *handler = | |
304 InterpreterRuntime::SignatureHandler::from_handlerAddr(hA); | |
305 | |
306 intptr_t *params = istate->stack_base() - handler->argument_count(); | |
307 if (addr >= params) { | |
308 int param = addr - params; | |
309 const char *desc = ""; | |
310 if (param == 0) | |
311 desc = " (JNIEnv)"; | |
312 else if (param == 1) { | |
313 if (istate->method()->is_static()) | |
314 desc = " (mirror)"; | |
315 else | |
316 desc = " (this)"; | |
317 } | |
318 snprintf(fieldbuf, buflen, "parameter[%d]%s", param, desc); | |
319 return; | |
320 } | |
321 | |
322 for (int i = 0; i < handler->argument_count(); i++) { | |
323 if (params[i] == (intptr_t) addr) { | |
324 snprintf(fieldbuf, buflen, "unboxed parameter[%d]", i); | |
325 return; | |
326 } | |
327 } | |
328 } | |
329 } | |
330 return; | |
331 } | |
332 | |
333 // Monitors and stack | |
334 identify_vp_word(frame_index, addr, | |
335 (intptr_t *) istate->monitor_base(), | |
336 istate->stack_base(), | |
337 fieldbuf, buflen); | |
338 } | |
339 | |
340 void SharkFrame::identify_word(int frame_index, | |
341 int offset, | |
342 char* fieldbuf, | |
343 char* valuebuf, | |
344 int buflen) const { | |
345 // Fixed part | |
346 switch (offset) { | |
347 case pc_off: | |
348 strncpy(fieldbuf, "pc", buflen); | |
349 if (method()->is_oop()) { | |
350 nmethod *code = method()->code(); | |
351 if (code && code->pc_desc_at(pc())) { | |
352 SimpleScopeDesc ssd(code, pc()); | |
353 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
354 (intptr_t) pc(), ssd.bci()); | |
355 } | |
356 } | |
357 return; | |
358 | |
359 case unextended_sp_off: | |
360 strncpy(fieldbuf, "unextended_sp", buflen); | |
361 return; | |
362 | |
363 case method_off: | |
364 strncpy(fieldbuf, "method", buflen); | |
365 if (method()->is_oop()) { | |
366 method()->name_and_sig_as_C_string(valuebuf, buflen); | |
367 } | |
368 return; | |
369 | |
370 case oop_tmp_off: | |
371 strncpy(fieldbuf, "oop_tmp", buflen); | |
372 return; | |
373 } | |
374 | |
375 // Variable part | |
376 if (method()->is_oop()) { | |
377 identify_vp_word(frame_index, addr_of_word(offset), | |
378 addr_of_word(header_words + 1), | |
379 unextended_sp() + method()->max_stack(), | |
380 fieldbuf, buflen); | |
381 } | |
382 } | |
383 | |
384 void ZeroFrame::identify_vp_word(int frame_index, | |
385 intptr_t* addr, | |
386 intptr_t* monitor_base, | |
387 intptr_t* stack_base, | |
388 char* fieldbuf, | |
389 int buflen) const { | |
390 // Monitors | |
391 if (addr >= stack_base && addr < monitor_base) { | |
392 int monitor_size = frame::interpreter_frame_monitor_size(); | |
393 int last_index = (monitor_base - stack_base) / monitor_size - 1; | |
394 int index = last_index - (addr - stack_base) / monitor_size; | |
395 intptr_t monitor = (intptr_t) ( | |
396 (BasicObjectLock *) monitor_base - 1 - index); | |
397 intptr_t offset = (intptr_t) addr - monitor; | |
398 | |
399 if (offset == BasicObjectLock::obj_offset_in_bytes()) | |
400 snprintf(fieldbuf, buflen, "monitor[%d]->_obj", index); | |
401 else if (offset == BasicObjectLock::lock_offset_in_bytes()) | |
402 snprintf(fieldbuf, buflen, "monitor[%d]->_lock", index); | |
403 | |
404 return; | |
405 } | |
406 | |
407 // Expression stack | |
408 if (addr < stack_base) { | |
409 snprintf(fieldbuf, buflen, "%s[%d]", | |
410 frame_index == 0 ? "stack_word" : "local", | |
411 (int) (stack_base - addr - 1)); | |
412 return; | |
413 } | |
414 } |