Mercurial > hg > truffle
annotate src/os_cpu/windows_x86/vm/os_windows_x86.cpp @ 1748:3e8fbc61cee8
6978355: renaming for 6961697
Summary: This is the renaming part of 6961697 to keep the actual changes small for review.
Reviewed-by: kvn, never
| author | twisti |
|---|---|
| date | Wed, 25 Aug 2010 05:27:54 -0700 |
| parents | 126ea7725993 |
| children | 1e9a9d2e6509 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 1748 | 2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 // do not include precompiled header file | |
| 26 # include "incls/_os_windows_x86.cpp.incl" | |
| 27 # include "unwind_windows_x86.hpp" | |
| 28 #undef REG_SP | |
| 29 #undef REG_FP | |
| 30 #undef REG_PC | |
| 31 #ifdef AMD64 | |
| 32 #define REG_SP Rsp | |
| 33 #define REG_FP Rbp | |
| 34 #define REG_PC Rip | |
| 35 #else | |
| 36 #define REG_SP Esp | |
| 37 #define REG_FP Ebp | |
| 38 #define REG_PC Eip | |
| 39 #endif // AMD64 | |
| 40 | |
| 41 extern LONG WINAPI topLevelExceptionFilter(_EXCEPTION_POINTERS* ); | |
| 42 | |
| 43 // Install a win32 structured exception handler around thread. | |
| 44 void os::os_exception_wrapper(java_call_t f, JavaValue* value, methodHandle* method, JavaCallArguments* args, Thread* thread) { | |
| 45 __try { | |
| 46 | |
| 47 #ifndef AMD64 | |
| 48 // We store the current thread in this wrapperthread location | |
| 49 // and determine how far away this address is from the structured | |
| 50 // execption pointer that FS:[0] points to. This get_thread | |
| 51 // code can then get the thread pointer via FS. | |
| 52 // | |
| 53 // Warning: This routine must NEVER be inlined since we'd end up with | |
| 54 // multiple offsets. | |
| 55 // | |
| 56 volatile Thread* wrapperthread = thread; | |
| 57 | |
| 58 if ( ThreadLocalStorage::get_thread_ptr_offset() == 0 ) { | |
| 59 int thread_ptr_offset; | |
| 60 __asm { | |
| 61 lea eax, dword ptr wrapperthread; | |
| 62 sub eax, dword ptr FS:[0H]; | |
| 63 mov thread_ptr_offset, eax | |
| 64 }; | |
| 65 ThreadLocalStorage::set_thread_ptr_offset(thread_ptr_offset); | |
| 66 } | |
| 67 #ifdef ASSERT | |
| 68 // Verify that the offset hasn't changed since we initally captured | |
| 69 // it. This might happen if we accidentally ended up with an | |
| 70 // inlined version of this routine. | |
| 71 else { | |
| 72 int test_thread_ptr_offset; | |
| 73 __asm { | |
| 74 lea eax, dword ptr wrapperthread; | |
| 75 sub eax, dword ptr FS:[0H]; | |
| 76 mov test_thread_ptr_offset, eax | |
| 77 }; | |
| 78 assert(test_thread_ptr_offset == ThreadLocalStorage::get_thread_ptr_offset(), | |
| 79 "thread pointer offset from SEH changed"); | |
| 80 } | |
| 81 #endif // ASSERT | |
| 82 #endif // !AMD64 | |
| 83 | |
| 84 f(value, method, args, thread); | |
| 85 } __except(topLevelExceptionFilter((_EXCEPTION_POINTERS*)_exception_info())) { | |
| 86 // Nothing to do. | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 #ifdef AMD64 | |
| 91 | |
| 92 // This is the language specific handler for exceptions | |
| 93 // originating from dynamically generated code. | |
| 94 // We call the standard structured exception handler | |
| 95 // We only expect Continued Execution since we cannot unwind | |
| 96 // from generated code. | |
| 97 LONG HandleExceptionFromCodeCache( | |
| 98 IN PEXCEPTION_RECORD ExceptionRecord, | |
| 99 IN ULONG64 EstablisherFrame, | |
| 100 IN OUT PCONTEXT ContextRecord, | |
| 101 IN OUT PDISPATCHER_CONTEXT DispatcherContext) { | |
| 102 EXCEPTION_POINTERS ep; | |
| 103 LONG result; | |
| 104 | |
| 105 ep.ExceptionRecord = ExceptionRecord; | |
| 106 ep.ContextRecord = ContextRecord; | |
| 107 | |
| 108 result = topLevelExceptionFilter(&ep); | |
| 109 | |
| 110 // We better only get a CONTINUE_EXECUTION from our handler | |
| 111 // since we don't have unwind information registered. | |
| 112 | |
| 113 guarantee( result == EXCEPTION_CONTINUE_EXECUTION, | |
| 114 "Unexpected result from topLevelExceptionFilter"); | |
| 115 | |
| 116 return(ExceptionContinueExecution); | |
| 117 } | |
| 118 | |
| 119 | |
| 120 // Structure containing the Windows Data Structures required | |
| 121 // to register our Code Cache exception handler. | |
| 122 // We put these in the CodeCache since the API requires | |
| 123 // all addresses in these structures are relative to the Code | |
| 124 // area registered with RtlAddFunctionTable. | |
| 125 typedef struct { | |
| 126 char ExceptionHandlerInstr[16]; // jmp HandleExceptionFromCodeCache | |
| 127 RUNTIME_FUNCTION rt; | |
| 128 UNWIND_INFO_EH_ONLY unw; | |
| 129 } DynamicCodeData, *pDynamicCodeData; | |
| 130 | |
| 131 #endif // AMD64 | |
| 132 // | |
| 133 // Register our CodeCache area with the OS so it will dispatch exceptions | |
| 134 // to our topLevelExceptionFilter when we take an exception in our | |
| 135 // dynamically generated code. | |
| 136 // | |
| 137 // Arguments: low and high are the address of the full reserved | |
| 138 // codeCache area | |
| 139 // | |
| 140 bool os::register_code_area(char *low, char *high) { | |
| 141 #ifdef AMD64 | |
| 142 | |
| 143 ResourceMark rm; | |
| 144 | |
| 145 pDynamicCodeData pDCD; | |
| 146 PRUNTIME_FUNCTION prt; | |
| 147 PUNWIND_INFO_EH_ONLY punwind; | |
| 148 | |
| 149 // If we are using Vectored Exceptions we don't need this registration | |
| 150 if (UseVectoredExceptions) return true; | |
| 151 | |
| 1748 | 152 BufferBlob* blob = BufferBlob::create("CodeCache Exception Handler", sizeof(DynamicCodeData)); |
| 153 CodeBuffer cb(blob); | |
| 0 | 154 MacroAssembler* masm = new MacroAssembler(&cb); |
| 155 pDCD = (pDynamicCodeData) masm->pc(); | |
| 156 | |
| 157 masm->jump(ExternalAddress((address)&HandleExceptionFromCodeCache)); | |
| 158 masm->flush(); | |
| 159 | |
| 160 // Create an Unwind Structure specifying no unwind info | |
| 161 // other than an Exception Handler | |
| 162 punwind = &pDCD->unw; | |
| 163 punwind->Version = 1; | |
| 164 punwind->Flags = UNW_FLAG_EHANDLER; | |
| 165 punwind->SizeOfProlog = 0; | |
| 166 punwind->CountOfCodes = 0; | |
| 167 punwind->FrameRegister = 0; | |
| 168 punwind->FrameOffset = 0; | |
| 169 punwind->ExceptionHandler = (char *)(&(pDCD->ExceptionHandlerInstr[0])) - | |
| 170 (char*)low; | |
| 171 punwind->ExceptionData[0] = 0; | |
| 172 | |
| 173 // This structure describes the covered dynamic code area. | |
| 174 // Addresses are relative to the beginning on the code cache area | |
| 175 prt = &pDCD->rt; | |
| 176 prt->BeginAddress = 0; | |
| 177 prt->EndAddress = (ULONG)(high - low); | |
| 178 prt->UnwindData = ((char *)punwind - low); | |
| 179 | |
| 180 guarantee(RtlAddFunctionTable(prt, 1, (ULONGLONG)low), | |
| 181 "Failed to register Dynamic Code Exception Handler with RtlAddFunctionTable"); | |
| 182 | |
| 183 #endif // AMD64 | |
| 184 return true; | |
| 185 } | |
| 186 | |
| 187 void os::initialize_thread() { | |
| 188 // Nothing to do. | |
| 189 } | |
| 190 | |
| 191 // Atomics and Stub Functions | |
| 192 | |
| 193 typedef jint xchg_func_t (jint, volatile jint*); | |
| 194 typedef intptr_t xchg_ptr_func_t (intptr_t, volatile intptr_t*); | |
| 195 typedef jint cmpxchg_func_t (jint, volatile jint*, jint); | |
| 196 typedef jlong cmpxchg_long_func_t (jlong, volatile jlong*, jlong); | |
| 197 typedef jint add_func_t (jint, volatile jint*); | |
| 198 typedef intptr_t add_ptr_func_t (intptr_t, volatile intptr_t*); | |
| 199 | |
| 200 #ifdef AMD64 | |
| 201 | |
| 202 jint os::atomic_xchg_bootstrap(jint exchange_value, volatile jint* dest) { | |
| 203 // try to use the stub: | |
| 204 xchg_func_t* func = CAST_TO_FN_PTR(xchg_func_t*, StubRoutines::atomic_xchg_entry()); | |
| 205 | |
| 206 if (func != NULL) { | |
| 207 os::atomic_xchg_func = func; | |
| 208 return (*func)(exchange_value, dest); | |
| 209 } | |
| 210 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 211 | |
| 212 jint old_value = *dest; | |
| 213 *dest = exchange_value; | |
| 214 return old_value; | |
| 215 } | |
| 216 | |
| 217 intptr_t os::atomic_xchg_ptr_bootstrap(intptr_t exchange_value, volatile intptr_t* dest) { | |
| 218 // try to use the stub: | |
| 219 xchg_ptr_func_t* func = CAST_TO_FN_PTR(xchg_ptr_func_t*, StubRoutines::atomic_xchg_ptr_entry()); | |
| 220 | |
| 221 if (func != NULL) { | |
| 222 os::atomic_xchg_ptr_func = func; | |
| 223 return (*func)(exchange_value, dest); | |
| 224 } | |
| 225 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 226 | |
| 227 intptr_t old_value = *dest; | |
| 228 *dest = exchange_value; | |
| 229 return old_value; | |
| 230 } | |
| 231 | |
| 232 | |
| 233 jint os::atomic_cmpxchg_bootstrap(jint exchange_value, volatile jint* dest, jint compare_value) { | |
| 234 // try to use the stub: | |
| 235 cmpxchg_func_t* func = CAST_TO_FN_PTR(cmpxchg_func_t*, StubRoutines::atomic_cmpxchg_entry()); | |
| 236 | |
| 237 if (func != NULL) { | |
| 238 os::atomic_cmpxchg_func = func; | |
| 239 return (*func)(exchange_value, dest, compare_value); | |
| 240 } | |
| 241 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 242 | |
| 243 jint old_value = *dest; | |
| 244 if (old_value == compare_value) | |
| 245 *dest = exchange_value; | |
| 246 return old_value; | |
| 247 } | |
| 248 #endif // AMD64 | |
| 249 | |
| 250 jlong os::atomic_cmpxchg_long_bootstrap(jlong exchange_value, volatile jlong* dest, jlong compare_value) { | |
| 251 // try to use the stub: | |
| 252 cmpxchg_long_func_t* func = CAST_TO_FN_PTR(cmpxchg_long_func_t*, StubRoutines::atomic_cmpxchg_long_entry()); | |
| 253 | |
| 254 if (func != NULL) { | |
| 255 os::atomic_cmpxchg_long_func = func; | |
| 256 return (*func)(exchange_value, dest, compare_value); | |
| 257 } | |
| 258 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 259 | |
| 260 jlong old_value = *dest; | |
| 261 if (old_value == compare_value) | |
| 262 *dest = exchange_value; | |
| 263 return old_value; | |
| 264 } | |
| 265 | |
| 266 #ifdef AMD64 | |
| 267 | |
| 268 jint os::atomic_add_bootstrap(jint add_value, volatile jint* dest) { | |
| 269 // try to use the stub: | |
| 270 add_func_t* func = CAST_TO_FN_PTR(add_func_t*, StubRoutines::atomic_add_entry()); | |
| 271 | |
| 272 if (func != NULL) { | |
| 273 os::atomic_add_func = func; | |
| 274 return (*func)(add_value, dest); | |
| 275 } | |
| 276 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 277 | |
| 278 return (*dest) += add_value; | |
| 279 } | |
| 280 | |
| 281 intptr_t os::atomic_add_ptr_bootstrap(intptr_t add_value, volatile intptr_t* dest) { | |
| 282 // try to use the stub: | |
| 283 add_ptr_func_t* func = CAST_TO_FN_PTR(add_ptr_func_t*, StubRoutines::atomic_add_ptr_entry()); | |
| 284 | |
| 285 if (func != NULL) { | |
| 286 os::atomic_add_ptr_func = func; | |
| 287 return (*func)(add_value, dest); | |
| 288 } | |
| 289 assert(Threads::number_of_threads() == 0, "for bootstrap only"); | |
| 290 | |
| 291 return (*dest) += add_value; | |
| 292 } | |
| 293 | |
| 294 xchg_func_t* os::atomic_xchg_func = os::atomic_xchg_bootstrap; | |
| 295 xchg_ptr_func_t* os::atomic_xchg_ptr_func = os::atomic_xchg_ptr_bootstrap; | |
| 296 cmpxchg_func_t* os::atomic_cmpxchg_func = os::atomic_cmpxchg_bootstrap; | |
| 297 add_func_t* os::atomic_add_func = os::atomic_add_bootstrap; | |
| 298 add_ptr_func_t* os::atomic_add_ptr_func = os::atomic_add_ptr_bootstrap; | |
| 299 | |
| 300 #endif // AMD64 | |
| 301 | |
| 302 cmpxchg_long_func_t* os::atomic_cmpxchg_long_func = os::atomic_cmpxchg_long_bootstrap; | |
| 303 | |
| 304 ExtendedPC os::fetch_frame_from_context(void* ucVoid, | |
| 305 intptr_t** ret_sp, intptr_t** ret_fp) { | |
| 306 | |
| 307 ExtendedPC epc; | |
| 308 CONTEXT* uc = (CONTEXT*)ucVoid; | |
| 309 | |
| 310 if (uc != NULL) { | |
| 311 epc = ExtendedPC((address)uc->REG_PC); | |
| 312 if (ret_sp) *ret_sp = (intptr_t*)uc->REG_SP; | |
| 313 if (ret_fp) *ret_fp = (intptr_t*)uc->REG_FP; | |
| 314 } else { | |
| 315 // construct empty ExtendedPC for return value checking | |
| 316 epc = ExtendedPC(NULL); | |
| 317 if (ret_sp) *ret_sp = (intptr_t *)NULL; | |
| 318 if (ret_fp) *ret_fp = (intptr_t *)NULL; | |
| 319 } | |
| 320 | |
| 321 return epc; | |
| 322 } | |
| 323 | |
| 324 frame os::fetch_frame_from_context(void* ucVoid) { | |
| 325 intptr_t* sp; | |
| 326 intptr_t* fp; | |
| 327 ExtendedPC epc = fetch_frame_from_context(ucVoid, &sp, &fp); | |
| 328 return frame(sp, fp, epc.pc()); | |
| 329 } | |
| 330 | |
| 331 // VC++ does not save frame pointer on stack in optimized build. It | |
| 332 // can be turned off by /Oy-. If we really want to walk C frames, | |
| 333 // we can use the StackWalk() API. | |
| 334 frame os::get_sender_for_C_frame(frame* fr) { | |
| 335 return frame(fr->sender_sp(), fr->link(), fr->sender_pc()); | |
| 336 } | |
| 337 | |
| 338 | |
| 339 #ifndef AMD64 | |
| 340 intptr_t* _get_previous_fp() { | |
| 341 intptr_t **frameptr; | |
| 342 __asm { | |
| 343 mov frameptr, ebp | |
| 344 }; | |
| 345 return *frameptr; | |
| 346 } | |
| 347 #endif // !AMD64 | |
| 348 | |
| 349 frame os::current_frame() { | |
| 350 | |
| 351 #ifdef AMD64 | |
| 352 // apparently _asm not supported on windows amd64 | |
| 353 typedef intptr_t* get_fp_func (); | |
| 354 get_fp_func* func = CAST_TO_FN_PTR(get_fp_func*, | |
| 304 | 355 StubRoutines::x86::get_previous_fp_entry()); |
| 0 | 356 if (func == NULL) return frame(NULL, NULL, NULL); |
| 357 intptr_t* fp = (*func)(); | |
| 358 #else | |
| 359 intptr_t* fp = _get_previous_fp(); | |
| 360 #endif // AMD64 | |
| 361 | |
| 362 frame myframe((intptr_t*)os::current_stack_pointer(), | |
| 363 (intptr_t*)fp, | |
| 364 CAST_FROM_FN_PTR(address, os::current_frame)); | |
| 365 if (os::is_first_C_frame(&myframe)) { | |
| 366 // stack is not walkable | |
| 367 return frame(NULL, NULL, NULL); | |
| 368 } else { | |
| 369 return os::get_sender_for_C_frame(&myframe); | |
| 370 } | |
| 371 } | |
| 372 | |
| 373 void os::print_context(outputStream *st, void *context) { | |
| 374 if (context == NULL) return; | |
| 375 | |
| 376 CONTEXT* uc = (CONTEXT*)context; | |
| 377 | |
| 378 st->print_cr("Registers:"); | |
| 379 #ifdef AMD64 | |
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380 st->print( "RAX=" INTPTR_FORMAT, uc->Rax); |
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381 st->print(", RBX=" INTPTR_FORMAT, uc->Rbx); |
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382 st->print(", RCX=" INTPTR_FORMAT, uc->Rcx); |
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383 st->print(", RDX=" INTPTR_FORMAT, uc->Rdx); |
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384 st->cr(); |
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385 st->print( "RSP=" INTPTR_FORMAT, uc->Rsp); |
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386 st->print(", RBP=" INTPTR_FORMAT, uc->Rbp); |
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387 st->print(", RSI=" INTPTR_FORMAT, uc->Rsi); |
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388 st->print(", RDI=" INTPTR_FORMAT, uc->Rdi); |
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389 st->cr(); |
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390 st->print( "R8=" INTPTR_FORMAT, uc->R8); |
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391 st->print(", R9=" INTPTR_FORMAT, uc->R9); |
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392 st->print(", R10=" INTPTR_FORMAT, uc->R10); |
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393 st->print(", R11=" INTPTR_FORMAT, uc->R11); |
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394 st->cr(); |
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395 st->print( "R12=" INTPTR_FORMAT, uc->R12); |
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396 st->print(", R13=" INTPTR_FORMAT, uc->R13); |
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397 st->print(", R14=" INTPTR_FORMAT, uc->R14); |
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398 st->print(", R15=" INTPTR_FORMAT, uc->R15); |
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399 st->cr(); |
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400 st->print( "RIP=" INTPTR_FORMAT, uc->Rip); |
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401 st->print(", EFLAGS=" INTPTR_FORMAT, uc->EFlags); |
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402 |
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403 st->cr(); |
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404 st->cr(); |
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405 |
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406 st->print_cr("Register to memory mapping:"); |
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407 st->cr(); |
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408 |
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409 // this is only for the "general purpose" registers |
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410 |
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411 st->print_cr("RAX=" INTPTR_FORMAT, uc->Rax); |
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412 print_location(st, uc->Rax); |
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413 st->cr(); |
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414 st->print_cr("RBX=" INTPTR_FORMAT, uc->Rbx); |
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415 print_location(st, uc->Rbx); |
| 0 | 416 st->cr(); |
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417 st->print_cr("RCX=" INTPTR_FORMAT, uc->Rcx); |
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418 print_location(st, uc->Rcx); |
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419 st->cr(); |
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420 st->print_cr("RDX=" INTPTR_FORMAT, uc->Rdx); |
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421 print_location(st, uc->Rdx); |
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422 st->cr(); |
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423 st->print_cr("RSP=" INTPTR_FORMAT, uc->Rsp); |
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424 print_location(st, uc->Rsp); |
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425 st->cr(); |
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426 st->print_cr("RBP=" INTPTR_FORMAT, uc->Rbp); |
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427 print_location(st, uc->Rbp); |
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428 st->cr(); |
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429 st->print_cr("RSI=" INTPTR_FORMAT, uc->Rsi); |
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430 print_location(st, uc->Rsi); |
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431 st->cr(); |
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432 st->print_cr("RDI=" INTPTR_FORMAT, uc->Rdi); |
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433 print_location(st, uc->Rdi); |
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434 st->cr(); |
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435 st->print_cr("R8 =" INTPTR_FORMAT, uc->R8); |
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436 print_location(st, uc->R8); |
| 0 | 437 st->cr(); |
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438 st->print_cr("R9 =" INTPTR_FORMAT, uc->R9); |
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439 print_location(st, uc->R9); |
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440 st->cr(); |
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441 st->print_cr("R10=" INTPTR_FORMAT, uc->R10); |
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442 print_location(st, uc->R10); |
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443 st->cr(); |
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444 st->print_cr("R11=" INTPTR_FORMAT, uc->R11); |
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445 print_location(st, uc->R11); |
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446 st->cr(); |
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447 st->print_cr("R12=" INTPTR_FORMAT, uc->R12); |
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448 print_location(st, uc->R12); |
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449 st->cr(); |
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450 st->print_cr("R13=" INTPTR_FORMAT, uc->R13); |
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451 print_location(st, uc->R13); |
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452 st->cr(); |
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453 st->print_cr("R14=" INTPTR_FORMAT, uc->R14); |
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454 print_location(st, uc->R14); |
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455 st->cr(); |
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456 st->print_cr("R15=" INTPTR_FORMAT, uc->R15); |
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457 print_location(st, uc->R15); |
| 0 | 458 #else |
| 459 st->print( "EAX=" INTPTR_FORMAT, uc->Eax); | |
| 460 st->print(", EBX=" INTPTR_FORMAT, uc->Ebx); | |
| 461 st->print(", ECX=" INTPTR_FORMAT, uc->Ecx); | |
| 462 st->print(", EDX=" INTPTR_FORMAT, uc->Edx); | |
| 463 st->cr(); | |
| 464 st->print( "ESP=" INTPTR_FORMAT, uc->Esp); | |
| 465 st->print(", EBP=" INTPTR_FORMAT, uc->Ebp); | |
| 466 st->print(", ESI=" INTPTR_FORMAT, uc->Esi); | |
| 467 st->print(", EDI=" INTPTR_FORMAT, uc->Edi); | |
| 468 st->cr(); | |
| 469 st->print( "EIP=" INTPTR_FORMAT, uc->Eip); | |
| 470 st->print(", EFLAGS=" INTPTR_FORMAT, uc->EFlags); | |
|
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471 |
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472 st->cr(); |
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473 st->cr(); |
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474 |
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475 st->print_cr("Register to memory mapping:"); |
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476 st->cr(); |
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477 |
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478 // this is only for the "general purpose" registers |
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479 |
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480 st->print_cr("EAX=" INTPTR_FORMAT, uc->Eax); |
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481 print_location(st, uc->Eax); |
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482 st->cr(); |
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483 st->print_cr("EBX=" INTPTR_FORMAT, uc->Ebx); |
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484 print_location(st, uc->Ebx); |
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485 st->cr(); |
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486 st->print_cr("ECX=" INTPTR_FORMAT, uc->Ecx); |
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487 print_location(st, uc->Ecx); |
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488 st->cr(); |
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489 st->print_cr("EDX=" INTPTR_FORMAT, uc->Edx); |
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490 print_location(st, uc->Edx); |
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491 st->cr(); |
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492 st->print_cr("ESP=" INTPTR_FORMAT, uc->Esp); |
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493 print_location(st, uc->Esp); |
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494 st->cr(); |
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495 st->print_cr("EBP=" INTPTR_FORMAT, uc->Ebp); |
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496 print_location(st, uc->Ebp); |
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497 st->cr(); |
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498 st->print_cr("ESI=" INTPTR_FORMAT, uc->Esi); |
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499 print_location(st, uc->Esi); |
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500 st->cr(); |
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501 st->print_cr("EDI=" INTPTR_FORMAT, uc->Edi); |
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502 print_location(st, uc->Edi); |
| 0 | 503 #endif // AMD64 |
| 504 st->cr(); | |
| 505 st->cr(); | |
| 506 | |
| 507 intptr_t *sp = (intptr_t *)uc->REG_SP; | |
| 508 st->print_cr("Top of Stack: (sp=" PTR_FORMAT ")", sp); | |
| 509 print_hex_dump(st, (address)sp, (address)(sp + 32), sizeof(intptr_t)); | |
| 510 st->cr(); | |
| 511 | |
| 512 // Note: it may be unsafe to inspect memory near pc. For example, pc may | |
| 513 // point to garbage if entry point in an nmethod is corrupted. Leave | |
| 514 // this at the end, and hope for the best. | |
| 515 address pc = (address)uc->REG_PC; | |
| 516 st->print_cr("Instructions: (pc=" PTR_FORMAT ")", pc); | |
| 517 print_hex_dump(st, pc - 16, pc + 16, sizeof(char)); | |
| 518 st->cr(); | |
| 519 } | |
| 520 | |
| 521 extern "C" int SafeFetch32 (int * adr, int Err) { | |
| 522 int rv = Err ; | |
| 523 _try { | |
| 524 rv = *((volatile int *) adr) ; | |
| 525 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 526 } | |
| 527 return rv ; | |
| 528 } | |
| 529 | |
| 530 extern "C" intptr_t SafeFetchN (intptr_t * adr, intptr_t Err) { | |
| 531 intptr_t rv = Err ; | |
| 532 _try { | |
| 533 rv = *((volatile intptr_t *) adr) ; | |
| 534 } __except(EXCEPTION_EXECUTE_HANDLER) { | |
| 535 } | |
| 536 return rv ; | |
| 537 } | |
| 538 | |
| 539 extern "C" int SpinPause () { | |
| 540 #ifdef AMD64 | |
| 541 return 0 ; | |
| 542 #else | |
| 543 // pause == rep:nop | |
| 544 // On systems that don't support pause a rep:nop | |
| 545 // is executed as a nop. The rep: prefix is ignored. | |
| 546 _asm { | |
| 547 pause ; | |
| 548 }; | |
| 549 return 1 ; | |
| 550 #endif // AMD64 | |
| 551 } | |
| 552 | |
| 553 | |
| 554 void os::setup_fpu() { | |
| 555 #ifndef AMD64 | |
| 556 int fpu_cntrl_word = StubRoutines::fpu_cntrl_wrd_std(); | |
| 557 __asm fldcw fpu_cntrl_word; | |
| 558 #endif // !AMD64 | |
| 559 } |