mirror of
https://github.com/dart-lang/sdk
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db45ae178a
This reverts commit b6c659ae8f.
TEST=CQ
Change-Id: I49056d510a9365c7aed83388430949a630c0f4b7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/216740
Commit-Queue: Ben Konyi <bkonyi@google.com>
Reviewed-by: Siva Annamalai <asiva@google.com>
104 lines
2.7 KiB
C++
104 lines
2.7 KiB
C++
// Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/globals.h"
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#include "vm/instructions.h"
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#include "vm/signal_handler.h"
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#include "vm/simulator.h"
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#if defined(DART_HOST_OS_MACOS)
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namespace dart {
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uintptr_t SignalHandler::GetProgramCounter(const mcontext_t& mcontext) {
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uintptr_t pc = 0;
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#if defined(HOST_ARCH_IA32)
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pc = static_cast<uintptr_t>(mcontext->__ss.__eip);
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#elif defined(HOST_ARCH_X64)
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pc = static_cast<uintptr_t>(mcontext->__ss.__rip);
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#elif defined(HOST_ARCH_ARM)
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pc = static_cast<uintptr_t>(mcontext->__ss.__pc);
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#elif defined(HOST_ARCH_ARM64)
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pc = static_cast<uintptr_t>(mcontext->__ss.__pc);
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#else
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#error Unsuported architecture.
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#endif // HOST_ARCH_...
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return pc;
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}
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uintptr_t SignalHandler::GetFramePointer(const mcontext_t& mcontext) {
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uintptr_t fp = 0;
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#if defined(HOST_ARCH_IA32)
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fp = static_cast<uintptr_t>(mcontext->__ss.__ebp);
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#elif defined(HOST_ARCH_X64)
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fp = static_cast<uintptr_t>(mcontext->__ss.__rbp);
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#elif defined(HOST_ARCH_ARM)
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fp = static_cast<uintptr_t>(mcontext->__ss.__r[7]);
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#elif defined(HOST_ARCH_ARM64)
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fp = static_cast<uintptr_t>(mcontext->__ss.__fp);
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#else
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#error Unsuported architecture.
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#endif // HOST_ARCH_...
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return fp;
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}
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uintptr_t SignalHandler::GetCStackPointer(const mcontext_t& mcontext) {
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uintptr_t sp = 0;
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#if defined(HOST_ARCH_IA32)
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sp = static_cast<uintptr_t>(mcontext->__ss.__esp);
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#elif defined(HOST_ARCH_X64)
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sp = static_cast<uintptr_t>(mcontext->__ss.__rsp);
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#elif defined(HOST_ARCH_ARM)
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sp = static_cast<uintptr_t>(mcontext->__ss.__sp);
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#elif defined(HOST_ARCH_ARM64)
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sp = static_cast<uintptr_t>(mcontext->__ss.__sp);
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#else
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UNIMPLEMENTED();
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#endif // HOST_ARCH_...
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return sp;
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}
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uintptr_t SignalHandler::GetDartStackPointer(const mcontext_t& mcontext) {
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#if defined(TARGET_ARCH_ARM64) && !defined(USING_SIMULATOR)
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return static_cast<uintptr_t>(mcontext->__ss.__x[SPREG]);
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#else
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return GetCStackPointer(mcontext);
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#endif
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}
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uintptr_t SignalHandler::GetLinkRegister(const mcontext_t& mcontext) {
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uintptr_t lr = 0;
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#if defined(HOST_ARCH_IA32)
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lr = 0;
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#elif defined(HOST_ARCH_X64)
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lr = 0;
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#elif defined(HOST_ARCH_ARM)
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lr = static_cast<uintptr_t>(mcontext->__ss.__lr);
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#elif defined(HOST_ARCH_ARM64)
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lr = static_cast<uintptr_t>(mcontext->__ss.__lr);
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#else
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#error Unsupported architecture.
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#endif // HOST_ARCH_...
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return lr;
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}
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void SignalHandler::Install(SignalAction action) {
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// Nothing to do on MacOS.
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}
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void SignalHandler::Remove() {
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// Nothing to do on MacOS.
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}
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} // namespace dart
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#endif // defined(DART_HOST_OS_MACOS)
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