Mercurial > hg > truffle
annotate src/cpu/zero/vm/frame_zero.cpp @ 1673:6709c14587c2 jdk7-b105
Added tag jdk7-b104 for changeset b4acf10eb134
| author | cl |
|---|---|
| date | Fri, 06 Aug 2010 12:51:54 -0700 |
| parents | c18cbe5936b8 |
| children | f95d63e2154a |
| rev | line source |
|---|---|
| 1010 | 1 /* |
|
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2 * Copyright (c) 2003, 2007, Oracle and/or its affiliates. All rights reserved. |
| 1505 | 3 * Copyright 2007, 2008, 2009, 2010 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 | |
| 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 | |
| 1512 | 39 bool frame::is_fake_stub_frame() const { |
| 40 return zeroframe()->is_fake_stub_frame(); | |
| 41 } | |
| 42 | |
| 1010 | 43 frame frame::sender_for_entry_frame(RegisterMap *map) const { |
| 1078 | 44 assert(zeroframe()->is_entry_frame(), "wrong type of frame"); |
| 1010 | 45 assert(map != NULL, "map must be set"); |
| 46 assert(!entry_frame_is_first(), "next Java fp must be non zero"); | |
| 47 assert(entry_frame_call_wrapper()->anchor()->last_Java_sp() == sender_sp(), | |
| 48 "sender should be next Java frame"); | |
| 49 map->clear(); | |
| 50 assert(map->include_argument_oops(), "should be set by clear"); | |
| 1505 | 51 return frame(zeroframe()->next(), sender_sp()); |
| 1010 | 52 } |
| 53 | |
| 1078 | 54 frame frame::sender_for_nonentry_frame(RegisterMap *map) const { |
| 55 assert(zeroframe()->is_interpreter_frame() || | |
| 56 zeroframe()->is_shark_frame() || | |
| 57 zeroframe()->is_fake_stub_frame(), "wrong type of frame"); | |
| 1505 | 58 return frame(zeroframe()->next(), sender_sp()); |
| 1010 | 59 } |
| 60 | |
| 61 frame frame::sender(RegisterMap* map) const { | |
| 62 // Default is not to follow arguments; the various | |
| 63 // sender_for_xxx methods update this accordingly. | |
| 64 map->set_include_argument_oops(false); | |
| 65 | |
| 66 if (is_entry_frame()) | |
| 67 return sender_for_entry_frame(map); | |
| 1078 | 68 else |
| 69 return sender_for_nonentry_frame(map); | |
| 1010 | 70 } |
| 71 | |
| 72 #ifdef CC_INTERP | |
| 73 BasicObjectLock* frame::interpreter_frame_monitor_begin() const { | |
| 74 return get_interpreterState()->monitor_base(); | |
| 75 } | |
| 76 | |
| 77 BasicObjectLock* frame::interpreter_frame_monitor_end() const { | |
| 78 return (BasicObjectLock*) get_interpreterState()->stack_base(); | |
| 79 } | |
| 80 #endif // CC_INTERP | |
| 81 | |
| 82 void frame::patch_pc(Thread* thread, address pc) { | |
| 83 // We borrow this call to set the thread pointer in the interpreter | |
| 84 // state; the hook to set up deoptimized frames isn't supplied it. | |
| 85 assert(pc == NULL, "should be"); | |
| 86 get_interpreterState()->set_thread((JavaThread *) thread); | |
| 87 } | |
| 88 | |
| 89 bool frame::safe_for_sender(JavaThread *thread) { | |
| 90 ShouldNotCallThis(); | |
| 91 } | |
| 92 | |
| 93 void frame::pd_gc_epilog() { | |
| 94 } | |
| 95 | |
| 96 bool frame::is_interpreted_frame_valid(JavaThread *thread) const { | |
| 97 ShouldNotCallThis(); | |
| 98 } | |
| 99 | |
| 100 BasicType frame::interpreter_frame_result(oop* oop_result, | |
| 101 jvalue* value_result) { | |
| 102 assert(is_interpreted_frame(), "interpreted frame expected"); | |
| 103 methodOop method = interpreter_frame_method(); | |
| 104 BasicType type = method->result_type(); | |
| 105 intptr_t* tos_addr = (intptr_t *) interpreter_frame_tos_address(); | |
| 106 oop obj; | |
| 107 | |
| 108 switch (type) { | |
| 109 case T_VOID: | |
| 110 break; | |
| 111 case T_BOOLEAN: | |
| 112 value_result->z = *(jboolean *) tos_addr; | |
| 113 break; | |
| 114 case T_BYTE: | |
| 115 value_result->b = *(jbyte *) tos_addr; | |
| 116 break; | |
| 117 case T_CHAR: | |
| 118 value_result->c = *(jchar *) tos_addr; | |
| 119 break; | |
| 120 case T_SHORT: | |
| 121 value_result->s = *(jshort *) tos_addr; | |
| 122 break; | |
| 123 case T_INT: | |
| 124 value_result->i = *(jint *) tos_addr; | |
| 125 break; | |
| 126 case T_LONG: | |
| 127 value_result->j = *(jlong *) tos_addr; | |
| 128 break; | |
| 129 case T_FLOAT: | |
| 130 value_result->f = *(jfloat *) tos_addr; | |
| 131 break; | |
| 132 case T_DOUBLE: | |
| 133 value_result->d = *(jdouble *) tos_addr; | |
| 134 break; | |
| 135 | |
| 136 case T_OBJECT: | |
| 137 case T_ARRAY: | |
| 138 if (method->is_native()) { | |
| 139 obj = get_interpreterState()->oop_temp(); | |
| 140 } | |
| 141 else { | |
| 142 oop* obj_p = (oop *) tos_addr; | |
| 143 obj = (obj_p == NULL) ? (oop) NULL : *obj_p; | |
| 144 } | |
| 145 assert(obj == NULL || Universe::heap()->is_in(obj), "sanity check"); | |
| 146 *oop_result = obj; | |
| 147 break; | |
| 148 | |
| 149 default: | |
| 150 ShouldNotReachHere(); | |
| 151 } | |
| 152 | |
| 153 return type; | |
| 154 } | |
| 155 | |
| 156 int frame::frame_size(RegisterMap* map) const { | |
| 157 #ifdef PRODUCT | |
| 158 ShouldNotCallThis(); | |
| 159 #else | |
| 160 return 0; // make javaVFrame::print_value work | |
| 161 #endif // PRODUCT | |
| 162 } | |
| 163 | |
| 164 intptr_t* frame::interpreter_frame_tos_at(jint offset) const { | |
| 165 int index = (Interpreter::expr_offset_in_bytes(offset) / wordSize); | |
| 166 return &interpreter_frame_tos_address()[index]; | |
| 167 } | |
| 168 | |
| 169 void frame::zero_print_on_error(int frame_index, | |
| 170 outputStream* st, | |
| 171 char* buf, | |
| 172 int buflen) const { | |
| 173 // Divide the buffer between the field and the value | |
| 174 buflen >>= 1; | |
| 175 char *fieldbuf = buf; | |
| 176 char *valuebuf = buf + buflen; | |
| 177 | |
| 178 // Print each word of the frame | |
| 1505 | 179 for (intptr_t *addr = sp(); addr <= fp(); addr++) { |
| 180 int offset = fp() - addr; | |
| 1010 | 181 |
| 182 // Fill in default values, then try and improve them | |
| 183 snprintf(fieldbuf, buflen, "word[%d]", offset); | |
| 184 snprintf(valuebuf, buflen, PTR_FORMAT, *addr); | |
| 185 zeroframe()->identify_word(frame_index, offset, fieldbuf, valuebuf, buflen); | |
| 186 fieldbuf[buflen - 1] = '\0'; | |
| 187 valuebuf[buflen - 1] = '\0'; | |
| 188 | |
| 189 // Print the result | |
| 190 st->print_cr(" " PTR_FORMAT ": %-21s = %s", addr, fieldbuf, valuebuf); | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 void ZeroFrame::identify_word(int frame_index, | |
| 195 int offset, | |
| 196 char* fieldbuf, | |
| 197 char* valuebuf, | |
| 198 int buflen) const { | |
| 199 switch (offset) { | |
| 200 case next_frame_off: | |
| 201 strncpy(fieldbuf, "next_frame", buflen); | |
| 202 break; | |
| 203 | |
| 204 case frame_type_off: | |
| 205 strncpy(fieldbuf, "frame_type", buflen); | |
| 206 if (is_entry_frame()) | |
| 207 strncpy(valuebuf, "ENTRY_FRAME", buflen); | |
| 208 else if (is_interpreter_frame()) | |
| 209 strncpy(valuebuf, "INTERPRETER_FRAME", buflen); | |
| 210 else if (is_shark_frame()) | |
| 211 strncpy(valuebuf, "SHARK_FRAME", buflen); | |
| 212 else if (is_fake_stub_frame()) | |
| 213 strncpy(valuebuf, "FAKE_STUB_FRAME", buflen); | |
| 214 break; | |
| 215 | |
| 216 default: | |
| 217 if (is_entry_frame()) { | |
| 218 as_entry_frame()->identify_word( | |
| 219 frame_index, offset, fieldbuf, valuebuf, buflen); | |
| 220 } | |
| 221 else if (is_interpreter_frame()) { | |
| 222 as_interpreter_frame()->identify_word( | |
| 223 frame_index, offset, fieldbuf, valuebuf, buflen); | |
| 224 } | |
| 225 else if (is_shark_frame()) { | |
| 226 as_shark_frame()->identify_word( | |
| 227 frame_index, offset, fieldbuf, valuebuf, buflen); | |
| 228 } | |
| 229 else if (is_fake_stub_frame()) { | |
| 230 as_fake_stub_frame()->identify_word( | |
| 231 frame_index, offset, fieldbuf, valuebuf, buflen); | |
| 232 } | |
| 233 } | |
| 234 } | |
| 235 | |
| 236 void EntryFrame::identify_word(int frame_index, | |
| 237 int offset, | |
| 238 char* fieldbuf, | |
| 239 char* valuebuf, | |
| 240 int buflen) const { | |
| 241 switch (offset) { | |
| 242 case call_wrapper_off: | |
| 243 strncpy(fieldbuf, "call_wrapper", buflen); | |
| 244 break; | |
| 245 | |
| 246 default: | |
| 247 snprintf(fieldbuf, buflen, "local[%d]", offset - 3); | |
| 248 } | |
| 249 } | |
| 250 | |
| 251 void InterpreterFrame::identify_word(int frame_index, | |
| 252 int offset, | |
| 253 char* fieldbuf, | |
| 254 char* valuebuf, | |
| 255 int buflen) const { | |
| 256 interpreterState istate = interpreter_state(); | |
| 257 bool is_valid = istate->self_link() == istate; | |
| 258 intptr_t *addr = addr_of_word(offset); | |
| 259 | |
| 260 // Fixed part | |
| 261 if (addr >= (intptr_t *) istate) { | |
| 262 const char *field = istate->name_of_field_at_address((address) addr); | |
| 263 if (field) { | |
| 264 if (is_valid && !strcmp(field, "_method")) { | |
| 265 istate->method()->name_and_sig_as_C_string(valuebuf, buflen); | |
| 266 } | |
| 267 else if (is_valid && !strcmp(field, "_bcp") && istate->bcp()) { | |
| 268 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
| 269 (intptr_t) istate->bcp(), | |
| 270 istate->method()->bci_from(istate->bcp())); | |
| 271 } | |
| 272 snprintf(fieldbuf, buflen, "%sistate->%s", | |
| 273 field[strlen(field) - 1] == ')' ? "(": "", field); | |
| 274 } | |
| 275 else if (addr == (intptr_t *) istate) { | |
| 276 strncpy(fieldbuf, "(vtable for istate)", buflen); | |
| 277 } | |
| 278 return; | |
| 279 } | |
| 280 | |
| 281 // Variable part | |
| 282 if (!is_valid) | |
| 283 return; | |
| 284 | |
| 285 // JNI stuff | |
| 286 if (istate->method()->is_native() && addr < istate->stack_base()) { | |
| 287 address hA = istate->method()->signature_handler(); | |
| 288 if (hA != NULL) { | |
| 289 if (hA != (address) InterpreterRuntime::slow_signature_handler) { | |
| 290 InterpreterRuntime::SignatureHandler *handler = | |
| 291 InterpreterRuntime::SignatureHandler::from_handlerAddr(hA); | |
| 292 | |
| 293 intptr_t *params = istate->stack_base() - handler->argument_count(); | |
| 294 if (addr >= params) { | |
| 295 int param = addr - params; | |
| 296 const char *desc = ""; | |
| 297 if (param == 0) | |
| 298 desc = " (JNIEnv)"; | |
| 299 else if (param == 1) { | |
| 300 if (istate->method()->is_static()) | |
| 301 desc = " (mirror)"; | |
| 302 else | |
| 303 desc = " (this)"; | |
| 304 } | |
| 305 snprintf(fieldbuf, buflen, "parameter[%d]%s", param, desc); | |
| 306 return; | |
| 307 } | |
| 308 | |
| 309 for (int i = 0; i < handler->argument_count(); i++) { | |
| 310 if (params[i] == (intptr_t) addr) { | |
| 311 snprintf(fieldbuf, buflen, "unboxed parameter[%d]", i); | |
| 312 return; | |
| 313 } | |
| 314 } | |
| 315 } | |
| 316 } | |
| 317 return; | |
| 318 } | |
| 319 | |
| 320 // Monitors and stack | |
| 321 identify_vp_word(frame_index, addr, | |
| 322 (intptr_t *) istate->monitor_base(), | |
| 323 istate->stack_base(), | |
| 324 fieldbuf, buflen); | |
| 325 } | |
| 326 | |
| 327 void SharkFrame::identify_word(int frame_index, | |
| 328 int offset, | |
| 329 char* fieldbuf, | |
| 330 char* valuebuf, | |
| 331 int buflen) const { | |
| 332 // Fixed part | |
| 333 switch (offset) { | |
| 334 case pc_off: | |
| 335 strncpy(fieldbuf, "pc", buflen); | |
| 336 if (method()->is_oop()) { | |
| 337 nmethod *code = method()->code(); | |
| 338 if (code && code->pc_desc_at(pc())) { | |
| 339 SimpleScopeDesc ssd(code, pc()); | |
| 340 snprintf(valuebuf, buflen, PTR_FORMAT " (bci %d)", | |
| 341 (intptr_t) pc(), ssd.bci()); | |
| 342 } | |
| 343 } | |
| 344 return; | |
| 345 | |
| 346 case unextended_sp_off: | |
| 347 strncpy(fieldbuf, "unextended_sp", buflen); | |
| 348 return; | |
| 349 | |
| 350 case method_off: | |
| 351 strncpy(fieldbuf, "method", buflen); | |
| 352 if (method()->is_oop()) { | |
| 353 method()->name_and_sig_as_C_string(valuebuf, buflen); | |
| 354 } | |
| 355 return; | |
| 356 | |
| 357 case oop_tmp_off: | |
| 358 strncpy(fieldbuf, "oop_tmp", buflen); | |
| 359 return; | |
| 360 } | |
| 361 | |
| 362 // Variable part | |
| 363 if (method()->is_oop()) { | |
| 364 identify_vp_word(frame_index, addr_of_word(offset), | |
| 365 addr_of_word(header_words + 1), | |
| 366 unextended_sp() + method()->max_stack(), | |
| 367 fieldbuf, buflen); | |
| 368 } | |
| 369 } | |
| 370 | |
| 371 void ZeroFrame::identify_vp_word(int frame_index, | |
| 372 intptr_t* addr, | |
| 373 intptr_t* monitor_base, | |
| 374 intptr_t* stack_base, | |
| 375 char* fieldbuf, | |
| 376 int buflen) const { | |
| 377 // Monitors | |
| 378 if (addr >= stack_base && addr < monitor_base) { | |
| 379 int monitor_size = frame::interpreter_frame_monitor_size(); | |
| 380 int last_index = (monitor_base - stack_base) / monitor_size - 1; | |
| 381 int index = last_index - (addr - stack_base) / monitor_size; | |
| 382 intptr_t monitor = (intptr_t) ( | |
| 383 (BasicObjectLock *) monitor_base - 1 - index); | |
| 384 intptr_t offset = (intptr_t) addr - monitor; | |
| 385 | |
| 386 if (offset == BasicObjectLock::obj_offset_in_bytes()) | |
| 387 snprintf(fieldbuf, buflen, "monitor[%d]->_obj", index); | |
| 388 else if (offset == BasicObjectLock::lock_offset_in_bytes()) | |
| 389 snprintf(fieldbuf, buflen, "monitor[%d]->_lock", index); | |
| 390 | |
| 391 return; | |
| 392 } | |
| 393 | |
| 394 // Expression stack | |
| 395 if (addr < stack_base) { | |
| 396 snprintf(fieldbuf, buflen, "%s[%d]", | |
| 397 frame_index == 0 ? "stack_word" : "local", | |
| 398 (int) (stack_base - addr - 1)); | |
| 399 return; | |
| 400 } | |
| 401 } |