zra@google.com
816bf5af2e
On arm64, in Dart code, R18(SP) is the stack pointer. In C++ code, R31(CSP) is the stack pointer. The profiler must choose the right one when performing its bounds checks. This change also fixes a bug in the InvokeDartCode stub on arm64 so that CSP is set to the Isolate's stack limit immediately, rather than a bit later. When it was set a bit later, if a profiler interrupt came in in the interim, the stack would be smashed. R=johnmccutchan@google.com Review URL: https://codereview.chromium.org//583683002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@40502 260f80e4-7a28-3924-810f-c04153c831b5
43 lines
887 B
C++
43 lines
887 B
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/signal_handler.h"
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#if defined(TARGET_OS_WINDOWS)
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namespace dart {
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uintptr_t SignalHandler::GetProgramCounter(const mcontext_t& mcontext) {
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UNIMPLEMENTED();
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return 0;
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}
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uintptr_t SignalHandler::GetFramePointer(const mcontext_t& mcontext) {
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UNIMPLEMENTED();
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return 0;
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}
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uintptr_t SignalHandler::GetCStackPointer(const mcontext_t& mcontext) {
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UNIMPLEMENTED();
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return 0;
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}
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uintptr_t SignalHandler::GetDartStackPointer(const mcontext_t& mcontext) {
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UNIMPLEMENTED();
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return 0;
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}
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void SignalHandler::Install(SignalAction action) {
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UNIMPLEMENTED();
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}
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} // namespace dart
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#endif // defined(TARGET_OS_WINDOWS)
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