| // Copyright 2015 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/init/v8.h" |
| |
| #if V8_TARGET_ARCH_S390 |
| |
| #include "src/debug/debug.h" |
| |
| #include "src/codegen/macro-assembler.h" |
| #include "src/debug/liveedit.h" |
| #include "src/execution/frames-inl.h" |
| |
| namespace v8 { |
| namespace internal { |
| |
| #define __ ACCESS_MASM(masm) |
| |
| void DebugCodegen::GenerateHandleDebuggerStatement(MacroAssembler* masm) { |
| { |
| FrameScope scope(masm, StackFrame::INTERNAL); |
| __ CallRuntime(Runtime::kHandleDebuggerStatement, 0); |
| } |
| __ MaybeDropFrames(); |
| |
| // Return to caller. |
| __ Ret(); |
| } |
| |
| void DebugCodegen::GenerateFrameDropperTrampoline(MacroAssembler* masm) { |
| // Frame is being dropped: |
| // - Drop to the target frame specified by r3. |
| // - Look up current function on the frame. |
| // - Leave the frame. |
| // - Restart the frame by calling the function. |
| |
| __ LoadRR(fp, r3); |
| __ LoadP(r3, MemOperand(fp, StandardFrameConstants::kFunctionOffset)); |
| __ LeaveFrame(StackFrame::INTERNAL); |
| __ LoadTaggedPointerField( |
| r2, FieldMemOperand(r3, JSFunction::kSharedFunctionInfoOffset)); |
| __ LoadLogicalHalfWordP( |
| r2, FieldMemOperand(r2, SharedFunctionInfo::kFormalParameterCountOffset)); |
| __ LoadRR(r4, r2); |
| |
| __ InvokeFunction(r3, r4, r2, JUMP_FUNCTION); |
| } |
| |
| const bool LiveEdit::kFrameDropperSupported = true; |
| |
| #undef __ |
| } // namespace internal |
| } // namespace v8 |
| |
| #endif // V8_TARGET_ARCH_S390 |
