| // Copyright (c) 2016, the Dart project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| #include "vm/globals.h" // Needed here to get TARGET_ARCH_DBC. |
| #if defined(TARGET_ARCH_DBC) |
| |
| #include "vm/code_patcher.h" |
| |
| #include "vm/compiler/backend/flow_graph_compiler.h" |
| #include "vm/instructions.h" |
| #include "vm/object.h" |
| |
| namespace dart { |
| |
| RawCode* CodePatcher::GetStaticCallTargetAt(uword return_address, |
| const Code& code) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| CallPattern call(return_address, code); |
| return call.TargetCode(); |
| } |
| |
| void CodePatcher::PatchStaticCallAt(uword return_address, |
| const Code& code, |
| const Code& new_target) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| CallPattern call(return_address, code); |
| call.SetTargetCode(new_target); |
| } |
| |
| void CodePatcher::InsertDeoptimizationCallAt(uword start) { |
| CallPattern::InsertDeoptCallAt(start); |
| } |
| |
| RawCode* CodePatcher::GetInstanceCallAt(uword return_address, |
| const Code& code, |
| ICData* ic_data) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| CallPattern call(return_address, code); |
| if (ic_data != NULL) { |
| *ic_data = call.IcData(); |
| } |
| return call.TargetCode(); |
| } |
| |
| RawFunction* CodePatcher::GetUnoptimizedStaticCallAt(uword return_address, |
| const Code& code, |
| ICData* ic_data_result) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| CallPattern static_call(return_address, code); |
| ICData& ic_data = ICData::Handle(); |
| ic_data ^= static_call.IcData(); |
| if (ic_data_result != NULL) { |
| *ic_data_result = ic_data.raw(); |
| } |
| return ic_data.GetTargetAt(0); |
| } |
| |
| void CodePatcher::PatchSwitchableCallAt(uword return_address, |
| const Code& caller_code, |
| const Object& data, |
| const Code& target) { |
| ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| SwitchableCallPattern call(return_address, caller_code); |
| call.SetData(data); |
| call.SetTarget(target); |
| } |
| |
| RawCode* CodePatcher::GetSwitchableCallTargetAt(uword return_address, |
| const Code& caller_code) { |
| ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| SwitchableCallPattern call(return_address, caller_code); |
| return call.target(); |
| } |
| |
| RawObject* CodePatcher::GetSwitchableCallDataAt(uword return_address, |
| const Code& caller_code) { |
| ASSERT(caller_code.ContainsInstructionAt(return_address)); |
| SwitchableCallPattern call(return_address, caller_code); |
| return call.data(); |
| } |
| |
| void CodePatcher::PatchNativeCallAt(uword return_address, |
| const Code& code, |
| NativeFunction target, |
| NativeFunctionWrapper trampoline) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| NativeCallPattern call(return_address, code); |
| call.set_target(trampoline); |
| call.set_native_function(target); |
| } |
| |
| NativeFunctionWrapper CodePatcher::GetNativeCallAt(uword return_address, |
| const Code& code, |
| NativeFunction* target) { |
| ASSERT(code.ContainsInstructionAt(return_address)); |
| NativeCallPattern call(return_address, code); |
| *target = call.native_function(); |
| return call.target(); |
| } |
| |
| } // namespace dart |
| |
| #endif // defined TARGET_ARCH_DBC |