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Issue 1150293002: Do not leak message object beyond try-catch. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: platform ports and turbofan Created 5 years, 7 months ago
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1 // Copyright 2014 the V8 project authors. All rights reserved. 1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #include "src/v8.h" 5 #include "src/v8.h"
6 6
7 #if V8_TARGET_ARCH_PPC 7 #if V8_TARGET_ARCH_PPC
8 8
9 #include "src/code-factory.h" 9 #include "src/code-factory.h"
10 #include "src/code-stubs.h" 10 #include "src/code-stubs.h"
(...skipping 5369 matching lines...) Expand 10 before | Expand all | Expand 10 after
5380 // Uncook return address and return. 5380 // Uncook return address and return.
5381 __ pop(result_register()); 5381 __ pop(result_register());
5382 __ SmiUntag(r4); 5382 __ SmiUntag(r4);
5383 __ mov(ip, Operand(masm_->CodeObject())); 5383 __ mov(ip, Operand(masm_->CodeObject()));
5384 __ add(ip, ip, r4); 5384 __ add(ip, ip, r4);
5385 __ mtctr(ip); 5385 __ mtctr(ip);
5386 __ bctr(); 5386 __ bctr();
5387 } 5387 }
5388 5388
5389 5389
5390 void FullCodeGenerator::EnterCatchBlock() {
5391 DCHECK(!result_register().is(r4));
5392 ExternalReference pending_message_obj =
5393 ExternalReference::address_of_pending_message_obj(isolate());
5394 __ LoadRoot(r4, Heap::kTheHoleValueRootIndex);
5395 __ mov(ip, Operand(pending_message_obj));
5396 __ StoreP(r4, MemOperand(ip));
5397 }
5398
5399
5390 #undef __ 5400 #undef __
5391 5401
5392 5402
5393 void BackEdgeTable::PatchAt(Code* unoptimized_code, Address pc, 5403 void BackEdgeTable::PatchAt(Code* unoptimized_code, Address pc,
5394 BackEdgeState target_state, 5404 BackEdgeState target_state,
5395 Code* replacement_code) { 5405 Code* replacement_code) {
5396 Address mov_address = Assembler::target_address_from_return_address(pc); 5406 Address mov_address = Assembler::target_address_from_return_address(pc);
5397 Address cmp_address = mov_address - 2 * Assembler::kInstrSize; 5407 Address cmp_address = mov_address - 2 * Assembler::kInstrSize;
5398 CodePatcher patcher(cmp_address, 1); 5408 CodePatcher patcher(cmp_address, 1);
5399 5409
(...skipping 54 matching lines...) Expand 10 before | Expand all | Expand 10 after
5454 return ON_STACK_REPLACEMENT; 5464 return ON_STACK_REPLACEMENT;
5455 } 5465 }
5456 5466
5457 DCHECK(interrupt_address == 5467 DCHECK(interrupt_address ==
5458 isolate->builtins()->OsrAfterStackCheck()->entry()); 5468 isolate->builtins()->OsrAfterStackCheck()->entry());
5459 return OSR_AFTER_STACK_CHECK; 5469 return OSR_AFTER_STACK_CHECK;
5460 } 5470 }
5461 } 5471 }
5462 } // namespace v8::internal 5472 } // namespace v8::internal
5463 #endif // V8_TARGET_ARCH_PPC 5473 #endif // V8_TARGET_ARCH_PPC
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