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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
| 4 | 4 |
| 5 #include "vm/globals.h" | 5 #include "vm/globals.h" |
| 6 #if defined(TARGET_ARCH_ARM) | 6 #if defined(TARGET_ARCH_ARM) |
| 7 | 7 |
| 8 #include "vm/code_patcher.h" | 8 #include "vm/code_patcher.h" |
| 9 #include "vm/cpu.h" | 9 #include "vm/cpu.h" |
| 10 #include "vm/debugger.h" | 10 #include "vm/debugger.h" |
| 11 #include "vm/instructions.h" | 11 #include "vm/instructions.h" |
| 12 #include "vm/stub_code.h" | 12 #include "vm/stub_code.h" |
| 13 | 13 |
| 14 namespace dart { | 14 namespace dart { |
| 15 | 15 |
| 16 #ifndef PRODUCT | 16 #ifndef PRODUCT |
| 17 | 17 |
| 18 RawCode* CodeBreakpoint::OrigStubAddress() const { | 18 RawCode* CodeBreakpoint::OrigStubAddress() const { |
| 19 return saved_value_; | 19 return saved_value_; |
| 20 } | 20 } |
| 21 | 21 |
| 22 | |
| 23 void CodeBreakpoint::PatchCode() { | 22 void CodeBreakpoint::PatchCode() { |
| 24 ASSERT(!is_enabled_); | 23 ASSERT(!is_enabled_); |
| 25 Code& stub_target = Code::Handle(); | 24 Code& stub_target = Code::Handle(); |
| 26 switch (breakpoint_kind_) { | 25 switch (breakpoint_kind_) { |
| 27 case RawPcDescriptors::kIcCall: | 26 case RawPcDescriptors::kIcCall: |
| 28 case RawPcDescriptors::kUnoptStaticCall: | 27 case RawPcDescriptors::kUnoptStaticCall: |
| 29 stub_target = StubCode::ICCallBreakpoint_entry()->code(); | 28 stub_target = StubCode::ICCallBreakpoint_entry()->code(); |
| 30 break; | 29 break; |
| 31 case RawPcDescriptors::kRuntimeCall: | 30 case RawPcDescriptors::kRuntimeCall: |
| 32 stub_target = StubCode::RuntimeCallBreakpoint_entry()->code(); | 31 stub_target = StubCode::RuntimeCallBreakpoint_entry()->code(); |
| 33 break; | 32 break; |
| 34 default: | 33 default: |
| 35 UNREACHABLE(); | 34 UNREACHABLE(); |
| 36 } | 35 } |
| 37 const Code& code = Code::Handle(code_); | 36 const Code& code = Code::Handle(code_); |
| 38 saved_value_ = CodePatcher::GetStaticCallTargetAt(pc_, code); | 37 saved_value_ = CodePatcher::GetStaticCallTargetAt(pc_, code); |
| 39 CodePatcher::PatchStaticCallAt(pc_, code, stub_target); | 38 CodePatcher::PatchStaticCallAt(pc_, code, stub_target); |
| 40 is_enabled_ = true; | 39 is_enabled_ = true; |
| 41 } | 40 } |
| 42 | 41 |
| 43 | |
| 44 void CodeBreakpoint::RestoreCode() { | 42 void CodeBreakpoint::RestoreCode() { |
| 45 ASSERT(is_enabled_); | 43 ASSERT(is_enabled_); |
| 46 const Code& code = Code::Handle(code_); | 44 const Code& code = Code::Handle(code_); |
| 47 switch (breakpoint_kind_) { | 45 switch (breakpoint_kind_) { |
| 48 case RawPcDescriptors::kIcCall: | 46 case RawPcDescriptors::kIcCall: |
| 49 case RawPcDescriptors::kUnoptStaticCall: | 47 case RawPcDescriptors::kUnoptStaticCall: |
| 50 case RawPcDescriptors::kRuntimeCall: { | 48 case RawPcDescriptors::kRuntimeCall: { |
| 51 CodePatcher::PatchStaticCallAt(pc_, code, Code::Handle(saved_value_)); | 49 CodePatcher::PatchStaticCallAt(pc_, code, Code::Handle(saved_value_)); |
| 52 break; | 50 break; |
| 53 } | 51 } |
| 54 default: | 52 default: |
| 55 UNREACHABLE(); | 53 UNREACHABLE(); |
| 56 } | 54 } |
| 57 is_enabled_ = false; | 55 is_enabled_ = false; |
| 58 } | 56 } |
| 59 | 57 |
| 60 #endif // !PRODUCT | 58 #endif // !PRODUCT |
| 61 | 59 |
| 62 } // namespace dart | 60 } // namespace dart |
| 63 | 61 |
| 64 #endif // defined TARGET_ARCH_ARM | 62 #endif // defined TARGET_ARCH_ARM |
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