// ldr ip, [pc, #0]
// blx ip
// <debug break return code entry point address>
- // bktp 0
+ // bkpt 0
CodePatcher patcher(rinfo()->pc(), Assembler::kJSReturnSequenceInstructions);
patcher.masm()->ldr(v8::internal::ip, MemOperand(v8::internal::pc, 0));
patcher.masm()->blx(v8::internal::ip);
{
FrameAndConstantPoolScope scope(masm, StackFrame::INTERNAL);
+ // Load padding words on stack.
+ __ mov(ip, Operand(Smi::FromInt(LiveEdit::kFramePaddingValue)));
+ for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) {
+ __ push(ip);
+ }
+ __ mov(ip, Operand(Smi::FromInt(LiveEdit::kFramePaddingInitialSize)));
+ __ push(ip);
+
// Store the registers containing live values on the expression stack to
// make sure that these are correctly updated during GC. Non object values
// are stored as a smi causing it to be untouched by GC.
}
}
+ // Don't bother removing padding bytes pushed on the stack
+ // as the frame is going to be restored right away.
+
// Leave the internal frame.
}
void DebugCodegen::GeneratePlainReturnLiveEdit(MacroAssembler* masm) {
- masm->Abort(kLiveEditFrameDroppingIsNotSupportedOnArm);
+ __ Ret();
}
void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
- masm->Abort(kLiveEditFrameDroppingIsNotSupportedOnArm);
+ ExternalReference restarter_frame_function_slot =
+ ExternalReference::debug_restarter_frame_function_pointer_address(
+ masm->isolate());
+ __ mov(ip, Operand(restarter_frame_function_slot));
+ __ mov(r1, Operand::Zero());
+ __ str(r1, MemOperand(ip, 0));
+
+ // We do not know our frame height, but set sp based on fp.
+ __ sub(sp, fp, Operand(kPointerSize));
+
+ __ Pop(lr, fp, r1); // Return address, Frame, Function.
+
+ // Load context from the function.
+ __ ldr(cp, FieldMemOperand(r1, JSFunction::kContextOffset));
+
+ // Get function code.
+ __ ldr(ip, FieldMemOperand(r1, JSFunction::kSharedFunctionInfoOffset));
+ __ ldr(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset));
+ __ add(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
+
+ // Re-run JSFunction, r1 is function, cp is context.
+ __ Jump(ip);
}
-const bool LiveEdit::kFrameDropperSupported = false;
+const bool LiveEdit::kFrameDropperSupported = true;
#undef __
V(kLiveBytesCountOverflowChunkSize, "Live Bytes Count overflow chunk size") \
V(kLiveEditFrameDroppingIsNotSupportedOnARM64, \
"LiveEdit frame dropping is not supported on arm64") \
- V(kLiveEditFrameDroppingIsNotSupportedOnArm, \
- "LiveEdit frame dropping is not supported on arm") \
V(kLiveEditFrameDroppingIsNotSupportedOnMips, \
"LiveEdit frame dropping is not supported on mips") \
V(kLiveEdit, "LiveEdit") \
# should be platform-independent.
'regress/regress-1132': [SKIP],
- # Stack manipulations in LiveEdit is not implemented for this arch.
- 'debug-liveedit-check-stack': [SKIP],
- 'debug-liveedit-stack-padding': [SKIP],
- 'debug-liveedit-restart-frame': [SKIP],
- 'debug-liveedit-double-call': [SKIP],
- 'harmony/generators-debug-liveedit': [SKIP],
-
# Currently always deopt on minus zero
'math-floor-of-div-minus-zero': [SKIP],