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2c5b320b14
TEST=service/break_on_function_many_child_isolates_test Issue https://github.com/dart-lang/sdk/issues/36097 Change-Id: I15b9d9db938042c89f21700876bf75d932f044a6 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/191781 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Alexander Aprelev <aam@google.com>
77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
// Copyright (c) 2014, 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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#if defined(TARGET_ARCH_ARM64)
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#include "vm/code_patcher.h"
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#include "vm/cpu.h"
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#include "vm/debugger.h"
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#include "vm/instructions.h"
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#include "vm/stub_code.h"
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namespace dart {
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#ifndef PRODUCT
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CodePtr CodeBreakpoint::OrigStubAddress() const {
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return saved_value_;
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}
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void CodeBreakpoint::PatchCode() {
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ASSERT(!IsEnabled());
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const Code& code = Code::Handle(code_);
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switch (breakpoint_kind_) {
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case UntaggedPcDescriptors::kIcCall: {
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Object& data = Object::Handle();
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saved_value_ = CodePatcher::GetInstanceCallAt(pc_, code, &data);
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CodePatcher::PatchInstanceCallAt(pc_, code, data,
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StubCode::ICCallBreakpoint());
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break;
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}
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case UntaggedPcDescriptors::kUnoptStaticCall: {
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saved_value_ = CodePatcher::GetStaticCallTargetAt(pc_, code);
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CodePatcher::PatchPoolPointerCallAt(
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pc_, code, StubCode::UnoptStaticCallBreakpoint());
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break;
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}
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case UntaggedPcDescriptors::kRuntimeCall: {
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saved_value_ = CodePatcher::GetStaticCallTargetAt(pc_, code);
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CodePatcher::PatchPoolPointerCallAt(pc_, code,
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StubCode::RuntimeCallBreakpoint());
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break;
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}
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default:
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UNREACHABLE();
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}
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}
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void CodeBreakpoint::RestoreCode() {
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ASSERT(IsEnabled());
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const Code& code = Code::Handle(code_);
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switch (breakpoint_kind_) {
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case UntaggedPcDescriptors::kIcCall: {
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Object& data = Object::Handle();
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CodePatcher::GetInstanceCallAt(pc_, code, &data);
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CodePatcher::PatchInstanceCallAt(pc_, code, data,
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Code::Handle(saved_value_));
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break;
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}
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case UntaggedPcDescriptors::kUnoptStaticCall:
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case UntaggedPcDescriptors::kRuntimeCall: {
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CodePatcher::PatchPoolPointerCallAt(pc_, code,
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Code::Handle(saved_value_));
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break;
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}
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default:
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UNREACHABLE();
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}
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}
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#endif // !PRODUCT
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} // namespace dart
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#endif // defined TARGET_ARCH_ARM64
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