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1 // Copyright (c) 1994-2006 Sun Microsystems Inc. | 1 // Copyright (c) 1994-2006 Sun Microsystems Inc. |
2 // All Rights Reserved. | 2 // All Rights Reserved. |
3 // | 3 // |
4 // Redistribution and use in source and binary forms, with or without | 4 // Redistribution and use in source and binary forms, with or without |
5 // modification, are permitted provided that the following conditions | 5 // modification, are permitted provided that the following conditions |
6 // are met: | 6 // are met: |
7 // | 7 // |
8 // - Redistributions of source code must retain the above copyright notice, | 8 // - Redistributions of source code must retain the above copyright notice, |
9 // this list of conditions and the following disclaimer. | 9 // this list of conditions and the following disclaimer. |
10 // | 10 // |
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235 Assembler::set_target_address_at(pc_ + kCodeAgingTargetDelta, host_, | 235 Assembler::set_target_address_at(pc_ + kCodeAgingTargetDelta, host_, |
236 stub->instruction_start(), | 236 stub->instruction_start(), |
237 icache_flush_mode); | 237 icache_flush_mode); |
238 } | 238 } |
239 | 239 |
240 | 240 |
241 Address RelocInfo::call_address() { | 241 Address RelocInfo::call_address() { |
242 DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) || | 242 DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) || |
243 (IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence())); | 243 (IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence())); |
244 // The pc_ offset of 0 assumes patched return sequence per | 244 // The pc_ offset of 0 assumes patched return sequence per |
245 // BreakLocationIterator::SetDebugBreakAtReturn(), or debug break | 245 // BreakLocation::SetDebugBreakAtReturn(), or debug break |
246 // slot per BreakLocationIterator::SetDebugBreakAtSlot(). | 246 // slot per BreakLocation::SetDebugBreakAtSlot(). |
247 return Assembler::target_address_at(pc_, host_); | 247 return Assembler::target_address_at(pc_, host_); |
248 } | 248 } |
249 | 249 |
250 | 250 |
251 void RelocInfo::set_call_address(Address target) { | 251 void RelocInfo::set_call_address(Address target) { |
252 DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) || | 252 DCHECK((IsJSReturn(rmode()) && IsPatchedReturnSequence()) || |
253 (IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence())); | 253 (IsDebugBreakSlot(rmode()) && IsPatchedDebugBreakSlotSequence())); |
254 Assembler::set_target_address_at(pc_, host_, target); | 254 Assembler::set_target_address_at(pc_, host_, target); |
255 if (host() != NULL) { | 255 if (host() != NULL) { |
256 Object* target_code = Code::GetCodeFromTargetAddress(target); | 256 Object* target_code = Code::GetCodeFromTargetAddress(target); |
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278 void RelocInfo::WipeOut() { | 278 void RelocInfo::WipeOut() { |
279 DCHECK(IsEmbeddedObject(rmode_) || IsCodeTarget(rmode_) || | 279 DCHECK(IsEmbeddedObject(rmode_) || IsCodeTarget(rmode_) || |
280 IsRuntimeEntry(rmode_) || IsExternalReference(rmode_)); | 280 IsRuntimeEntry(rmode_) || IsExternalReference(rmode_)); |
281 Assembler::set_target_address_at(pc_, host_, NULL); | 281 Assembler::set_target_address_at(pc_, host_, NULL); |
282 } | 282 } |
283 | 283 |
284 | 284 |
285 bool RelocInfo::IsPatchedReturnSequence() { | 285 bool RelocInfo::IsPatchedReturnSequence() { |
286 // | 286 // |
287 // The patched return sequence is defined by | 287 // The patched return sequence is defined by |
288 // BreakLocationIterator::SetDebugBreakAtReturn() | 288 // BreakLocation::SetDebugBreakAtReturn() |
289 // FIXED_SEQUENCE | 289 // FIXED_SEQUENCE |
290 | 290 |
291 Instr instr0 = Assembler::instr_at(pc_); | 291 Instr instr0 = Assembler::instr_at(pc_); |
292 Instr instr1 = Assembler::instr_at(pc_ + 1 * Assembler::kInstrSize); | 292 Instr instr1 = Assembler::instr_at(pc_ + 1 * Assembler::kInstrSize); |
293 #if V8_TARGET_ARCH_PPC64 | 293 #if V8_TARGET_ARCH_PPC64 |
294 Instr instr3 = Assembler::instr_at(pc_ + (3 * Assembler::kInstrSize)); | 294 Instr instr3 = Assembler::instr_at(pc_ + (3 * Assembler::kInstrSize)); |
295 Instr instr4 = Assembler::instr_at(pc_ + (4 * Assembler::kInstrSize)); | 295 Instr instr4 = Assembler::instr_at(pc_ + (4 * Assembler::kInstrSize)); |
296 Instr binstr = Assembler::instr_at(pc_ + (7 * Assembler::kInstrSize)); | 296 Instr binstr = Assembler::instr_at(pc_ + (7 * Assembler::kInstrSize)); |
297 #else | 297 #else |
298 Instr binstr = Assembler::instr_at(pc_ + 4 * Assembler::kInstrSize); | 298 Instr binstr = Assembler::instr_at(pc_ + 4 * Assembler::kInstrSize); |
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499 } | 499 } |
500 #endif | 500 #endif |
501 return; | 501 return; |
502 } | 502 } |
503 UNREACHABLE(); | 503 UNREACHABLE(); |
504 } | 504 } |
505 } | 505 } |
506 } // namespace v8::internal | 506 } // namespace v8::internal |
507 | 507 |
508 #endif // V8_PPC_ASSEMBLER_PPC_INL_H_ | 508 #endif // V8_PPC_ASSEMBLER_PPC_INL_H_ |
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