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v8/src/simulator.h

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Rework the way we handle the fact that the ARM simulator uses a separate JS stack. In exception handling, we need to be able to compare addresses into the JavaScript portion of the stack with the address of a C++ handler on the stack. Since the stacks are separate on the simulator, we need a JavaScript stack address corresponding to a C++ try catch handler in order to perform valid address comparisons. On the simulator, we now link the C++ try catch handlers indirectly through the JS stack and use the JS stack indirection address for comparisons. JS C++ handler [C++ address] <------ next_ \ \ \----> handler [C++ address] <------ next_ On actual hardware the C++ try catch handlers continue to be directly linked. BUG=http://code.google.com/p/v8/issues/detail?id=271 Review URL: http://codereview.chromium.org/360004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-11-05 13:27:21 +00:00
// Copyright 2009 the V8 project authors. All rights reserved.
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef V8_SIMULATOR_H_
#define V8_SIMULATOR_H_
#if V8_TARGET_ARCH_IA32
#include "ia32/simulator-ia32.h"
#elif V8_TARGET_ARCH_X64
#include "x64/simulator-x64.h"
#elif V8_TARGET_ARCH_ARM
#include "arm/simulator-arm.h"
MIPS port initial commit This is the first step in the MIPS port of V8. It adds assembler, disassembler and simulator for the MIPS32 architecture. Contains stubbed out implementation of all the compiler/code generator infrastructure to make it all build. Patch by Alexandre Rames from Sigma Designs Inc. This is the landing of http://codereview.chromium.org/543161. Review URL: http://codereview.chromium.org/561072 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3799 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2010-02-04 20:36:58 +00:00
#elif V8_TARGET_ARCH_MIPS
#include "mips/simulator-mips.h"
Rework the way we handle the fact that the ARM simulator uses a separate JS stack. In exception handling, we need to be able to compare addresses into the JavaScript portion of the stack with the address of a C++ handler on the stack. Since the stacks are separate on the simulator, we need a JavaScript stack address corresponding to a C++ try catch handler in order to perform valid address comparisons. On the simulator, we now link the C++ try catch handlers indirectly through the JS stack and use the JS stack indirection address for comparisons. JS C++ handler [C++ address] <------ next_ \ \ \----> handler [C++ address] <------ next_ On actual hardware the C++ try catch handlers continue to be directly linked. BUG=http://code.google.com/p/v8/issues/detail?id=271 Review URL: http://codereview.chromium.org/360004 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@3228 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
2009-11-05 13:27:21 +00:00
#else
#error Unsupported target architecture.
#endif
#endif // V8_SIMULATOR_H_
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