1010
|
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 frame frame::sender_for_entry_frame(RegisterMap *map) const {
|
1078
|
40 assert(zeroframe()->is_entry_frame(), "wrong type of frame");
|
1010
|
41 assert(map != NULL, "map must be set");
|
|
42 assert(!entry_frame_is_first(), "next Java fp must be non zero");
|
|
43 assert(entry_frame_call_wrapper()->anchor()->last_Java_sp() == sender_sp(),
|
|
44 "sender should be next Java frame");
|
|
45 map->clear();
|
|
46 assert(map->include_argument_oops(), "should be set by clear");
|
|
47 return frame(sender_sp(), sp() + 1);
|
|
48 }
|
|
49
|
1078
|
50 frame frame::sender_for_nonentry_frame(RegisterMap *map) const {
|
|
51 assert(zeroframe()->is_interpreter_frame() ||
|
|
52 zeroframe()->is_shark_frame() ||
|
|
53 zeroframe()->is_fake_stub_frame(), "wrong type of frame");
|
1010
|
54 return frame(sender_sp(), sp() + 1);
|
|
55 }
|
|
56
|
|
57 frame frame::sender(RegisterMap* map) const {
|
|
58 // Default is not to follow arguments; the various
|
|
59 // sender_for_xxx methods update this accordingly.
|
|
60 map->set_include_argument_oops(false);
|
|
61
|
|
62 if (is_entry_frame())
|
|
63 return sender_for_entry_frame(map);
|
1078
|
64 else
|
|
65 return sender_for_nonentry_frame(map);
|
1010
|
66 }
|
|
67
|
|
68 #ifdef CC_INTERP
|
|
69 BasicObjectLock* frame::interpreter_frame_monitor_begin() const {
|
|
70 return get_interpreterState()->monitor_base();
|
|
71 }
|
|
72
|
|
73 BasicObjectLock* frame::interpreter_frame_monitor_end() const {
|
|
74 return (BasicObjectLock*) get_interpreterState()->stack_base();
|
|
75 }
|
|
76 #endif // CC_INTERP
|
|
77
|
|
78 void frame::patch_pc(Thread* thread, address pc) {
|
|
79 // We borrow this call to set the thread pointer in the interpreter
|
|
80 // state; the hook to set up deoptimized frames isn't supplied it.
|
|
81 assert(pc == NULL, "should be");
|
|
82 get_interpreterState()->set_thread((JavaThread *) thread);
|
|
83 }
|
|
84
|
|
85 bool frame::safe_for_sender(JavaThread *thread) {
|
|
86 ShouldNotCallThis();
|
|
87 }
|
|
88
|
|
89 void frame::pd_gc_epilog() {
|
|
90 }
|
|
91
|
|
92 bool frame::is_interpreted_frame_valid(JavaThread *thread) const {
|
|
93 ShouldNotCallThis();
|
|
94 }
|
|
95
|
|
96 BasicType frame::interpreter_frame_result(oop* oop_result,
|
|
97 jvalue* value_result) {
|
|
98 assert(is_interpreted_frame(), "interpreted frame expected");
|
|
99 methodOop method = interpreter_frame_method();
|
|
100 BasicType type = method->result_type();
|
|
101 intptr_t* tos_addr = (intptr_t *) interpreter_frame_tos_address();
|
|
102 oop obj;
|
|
103
|
|
104 switch (type) {
|
|
105 case T_VOID:
|
|
106 break;
|
|
107 case T_BOOLEAN:
|
|
108 value_result->z = *(jboolean *) tos_addr;
|
|
109 break;
|
|
110 case T_BYTE:
|
|
111 value_result->b = *(jbyte *) tos_addr;
|
|
112 break;
|
|
113 case T_CHAR:
|
|
114 value_result->c = *(jchar *) tos_addr;
|
|
115 break;
|
|
116 case T_SHORT:
|
|
117 value_result->s = *(jshort *) tos_addr;
|
|
118 break;
|
|
119 case T_INT:
|
|
120 value_result->i = *(jint *) tos_addr;
|
|
121 break;
|
|
122 case T_LONG:
|
|
123 value_result->j = *(jlong *) tos_addr;
|
|
124 break;
|
|
125 case T_FLOAT:
|
|
126 value_result->f = *(jfloat *) tos_addr;
|
|
127 break;
|
|
128 case T_DOUBLE:
|
|
129 value_result->d = *(jdouble *) tos_addr;
|
|
130 break;
|
|
131
|
|
132 case T_OBJECT:
|
|
133 case T_ARRAY:
|
|
134 if (method->is_native()) {
|
|
135 obj = get_interpreterState()->oop_temp();
|
|
136 }
|
|
137 else {
|
|
138 oop* obj_p = (oop *) tos_addr;
|
|
139 obj = (obj_p == NULL) ? (oop) NULL : *obj_p;
|
|
140 }
|
|
141 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check");
|
|
142 *oop_result = obj;
|
|
143 break;
|
|
144
|
|
145 default:
|
|
146 ShouldNotReachHere();
|
|
147 }
|
|
148
|
|
149 return type;
|
|
150 }
|
|
151
|
|
152 int frame::frame_size(RegisterMap* map) const {
|
|
153 #ifdef PRODUCT
|
|
154 ShouldNotCallThis();
|
|
155 #else
|
|
156 return 0; // make javaVFrame::print_value work
|
|
157 #endif // PRODUCT
|
|
158 }
|
|
159
|
|
160 intptr_t* frame::interpreter_frame_tos_at(jint offset) const {
|
|
161 int index = (Interpreter::expr_offset_in_bytes(offset) / wordSize);
|
|
162 return &interpreter_frame_tos_address()[index];
|
|
163 }
|
|
164
|
|
165 void frame::zero_print_on_error(int frame_index,
|
|
166 outputStream* st,
|
|
167 char* buf,
|
|
168 int buflen) const {
|
|
169 // Divide the buffer between the field and the value
|
|
170 buflen >>= 1;
|
|
171 char *fieldbuf = buf;
|
|
172 char *valuebuf = buf + buflen;
|
|
173
|
|
174 // Print each word of the frame
|
|
175 for (intptr_t *addr = fp(); addr <= sp(); addr++) {
|
|
176 int offset = sp() - addr;
|
|
177
|
|
178 // Fill in default values, then try and improve them
|
|
179 snprintf(fieldbuf, buflen, "word[%d]", offset);
|
|
180 snprintf(valuebuf, buflen, PTR_FORMAT, *addr);
|
|
181 zeroframe()->identify_word(frame_index, offset, fieldbuf, valuebuf, buflen);
|
|
182 fieldbuf[buflen - 1] = '\0';
|
|
183 valuebuf[buflen - 1] = '\0';
|
|
184
|
|
185 // Print the result
|
|
186 st->print_cr(" " PTR_FORMAT ": %-21s = %s", addr, fieldbuf, valuebuf);
|
|
187 }
|
|
188 }
|
|
189
|
|
190 void ZeroFrame::identify_word(int frame_index,
|
|
191 int offset,
|
|
192 char* fieldbuf,
|
|
193 char* valuebuf,
|
|
194 int buflen) const {
|
|
195 switch (offset) {
|
|
196 case next_frame_off:
|
|
197 strncpy(fieldbuf, "next_frame", buflen);
|
|
198 break;
|
|
199
|
|
200 case frame_type_off:
|
|
201 strncpy(fieldbuf, "frame_type", buflen);
|
|
202 if (is_entry_frame())
|
|
203 strncpy(valuebuf, "ENTRY_FRAME", buflen);
|
|
204 else if (is_interpreter_frame())
|
|
205 strncpy(valuebuf, "INTERPRETER_FRAME", buflen);
|
|
206 else if (is_shark_frame())
|
|
207 strncpy(valuebuf, "SHARK_FRAME", buflen);
|
|
208 else if (is_fake_stub_frame())
|
|
209 strncpy(valuebuf, "FAKE_STUB_FRAME", buflen);
|
|
210 break;
|
|
211
|
|
212 default:
|
|
213 if (is_entry_frame()) {
|
|
214 as_entry_frame()->identify_word(
|
|
215 frame_index, offset, fieldbuf, valuebuf, buflen);
|
|
216 }
|
|
217 else if (is_interpreter_frame()) {
|
|
218 as_interpreter_frame()->identify_word(
|
|
219 frame_index, offset, fieldbuf, valuebuf, buflen);
|
|
220 }
|
|
221 else if (is_shark_frame()) {
|
|
222 as_shark_frame()->identify_word(
|
|
223 frame_index, offset, fieldbuf, valuebuf, buflen);
|
|
224 }
|
|
225 else if (is_fake_stub_frame()) {
|
|
226 as_fake_stub_frame()->identify_word(
|
|
227 frame_index, offset, fieldbuf, valuebuf, buflen);
|
|
228 }
|
|
229 }
|
|
230 }
|
|
231
|
|
232 void EntryFrame::identify_word(int frame_index,
|
|
233 int offset,
|
|
234 char* fieldbuf,
|
|
235 char* valuebuf,
|
|
236 int buflen) const {
|
|
237 switch (offset) {
|
|
238 case call_wrapper_off:
|
|
239 strncpy(fieldbuf, "call_wrapper", buflen);
|
|
240 break;
|
|
241
|
|
242 default:
|
|
243 snprintf(fieldbuf, buflen, "local[%d]", offset - 3);
|
|
244 }
|
|
245 }
|
|
246
|
|
247 void InterpreterFrame::identify_word(int frame_index,
|
|
248 int offset,
|
|
249 char* fieldbuf,
|
|
250 char* valuebuf,
|
|
251 int buflen) const {
|
|
252 interpreterState istate = interpreter_state();
|
|
253 bool is_valid = istate->self_link() == istate;
|
|
254 intptr_t *addr = addr_of_word(offset);
|
|
255
|
|
256 // Fixed part
|
|
257 if (addr >= (intptr_t *) istate) {
|
|
258 const char *field = istate->name_of_field_at_address((address) addr);
|
|
259 if (field) {
|
|
260 if (is_valid && !strcmp(field, "_method")) {
|
|
261 istate->method()->name_and_sig_as_C_string(valuebuf, buflen);
|
|
262 }
|
|
263 else if (is_valid && !strcmp(field, "_bcp") && istate->bcp()) {
|
|
264 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)",
|
|
265 (intptr_t) istate->bcp(),
|
|
266 istate->method()->bci_from(istate->bcp()));
|
|
267 }
|
|
268 snprintf(fieldbuf, buflen, "%sistate->%s",
|
|
269 field[strlen(field) - 1] == ')' ? "(": "", field);
|
|
270 }
|
|
271 else if (addr == (intptr_t *) istate) {
|
|
272 strncpy(fieldbuf, "(vtable for istate)", buflen);
|
|
273 }
|
|
274 return;
|
|
275 }
|
|
276
|
|
277 // Variable part
|
|
278 if (!is_valid)
|
|
279 return;
|
|
280
|
|
281 // JNI stuff
|
|
282 if (istate->method()->is_native() && addr < istate->stack_base()) {
|
|
283 address hA = istate->method()->signature_handler();
|
|
284 if (hA != NULL) {
|
|
285 if (hA != (address) InterpreterRuntime::slow_signature_handler) {
|
|
286 InterpreterRuntime::SignatureHandler *handler =
|
|
287 InterpreterRuntime::SignatureHandler::from_handlerAddr(hA);
|
|
288
|
|
289 intptr_t *params = istate->stack_base() - handler->argument_count();
|
|
290 if (addr >= params) {
|
|
291 int param = addr - params;
|
|
292 const char *desc = "";
|
|
293 if (param == 0)
|
|
294 desc = " (JNIEnv)";
|
|
295 else if (param == 1) {
|
|
296 if (istate->method()->is_static())
|
|
297 desc = " (mirror)";
|
|
298 else
|
|
299 desc = " (this)";
|
|
300 }
|
|
301 snprintf(fieldbuf, buflen, "parameter[%d]%s", param, desc);
|
|
302 return;
|
|
303 }
|
|
304
|
|
305 for (int i = 0; i < handler->argument_count(); i++) {
|
|
306 if (params[i] == (intptr_t) addr) {
|
|
307 snprintf(fieldbuf, buflen, "unboxed parameter[%d]", i);
|
|
308 return;
|
|
309 }
|
|
310 }
|
|
311 }
|
|
312 }
|
|
313 return;
|
|
314 }
|
|
315
|
|
316 // Monitors and stack
|
|
317 identify_vp_word(frame_index, addr,
|
|
318 (intptr_t *) istate->monitor_base(),
|
|
319 istate->stack_base(),
|
|
320 fieldbuf, buflen);
|
|
321 }
|
|
322
|
|
323 void SharkFrame::identify_word(int frame_index,
|
|
324 int offset,
|
|
325 char* fieldbuf,
|
|
326 char* valuebuf,
|
|
327 int buflen) const {
|
|
328 // Fixed part
|
|
329 switch (offset) {
|
|
330 case pc_off:
|
|
331 strncpy(fieldbuf, "pc", buflen);
|
|
332 if (method()->is_oop()) {
|
|
333 nmethod *code = method()->code();
|
|
334 if (code && code->pc_desc_at(pc())) {
|
|
335 SimpleScopeDesc ssd(code, pc());
|
|
336 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)",
|
|
337 (intptr_t) pc(), ssd.bci());
|
|
338 }
|
|
339 }
|
|
340 return;
|
|
341
|
|
342 case unextended_sp_off:
|
|
343 strncpy(fieldbuf, "unextended_sp", buflen);
|
|
344 return;
|
|
345
|
|
346 case method_off:
|
|
347 strncpy(fieldbuf, "method", buflen);
|
|
348 if (method()->is_oop()) {
|
|
349 method()->name_and_sig_as_C_string(valuebuf, buflen);
|
|
350 }
|
|
351 return;
|
|
352
|
|
353 case oop_tmp_off:
|
|
354 strncpy(fieldbuf, "oop_tmp", buflen);
|
|
355 return;
|
|
356 }
|
|
357
|
|
358 // Variable part
|
|
359 if (method()->is_oop()) {
|
|
360 identify_vp_word(frame_index, addr_of_word(offset),
|
|
361 addr_of_word(header_words + 1),
|
|
362 unextended_sp() + method()->max_stack(),
|
|
363 fieldbuf, buflen);
|
|
364 }
|
|
365 }
|
|
366
|
|
367 void ZeroFrame::identify_vp_word(int frame_index,
|
|
368 intptr_t* addr,
|
|
369 intptr_t* monitor_base,
|
|
370 intptr_t* stack_base,
|
|
371 char* fieldbuf,
|
|
372 int buflen) const {
|
|
373 // Monitors
|
|
374 if (addr >= stack_base && addr < monitor_base) {
|
|
375 int monitor_size = frame::interpreter_frame_monitor_size();
|
|
376 int last_index = (monitor_base - stack_base) / monitor_size - 1;
|
|
377 int index = last_index - (addr - stack_base) / monitor_size;
|
|
378 intptr_t monitor = (intptr_t) (
|
|
379 (BasicObjectLock *) monitor_base - 1 - index);
|
|
380 intptr_t offset = (intptr_t) addr - monitor;
|
|
381
|
|
382 if (offset == BasicObjectLock::obj_offset_in_bytes())
|
|
383 snprintf(fieldbuf, buflen, "monitor[%d]->_obj", index);
|
|
384 else if (offset == BasicObjectLock::lock_offset_in_bytes())
|
|
385 snprintf(fieldbuf, buflen, "monitor[%d]->_lock", index);
|
|
386
|
|
387 return;
|
|
388 }
|
|
389
|
|
390 // Expression stack
|
|
391 if (addr < stack_base) {
|
|
392 snprintf(fieldbuf, buflen, "%s[%d]",
|
|
393 frame_index == 0 ? "stack_word" : "local",
|
|
394 (int) (stack_base - addr - 1));
|
|
395 return;
|
|
396 }
|
|
397 }
|