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PPC: [debugger] do not predict step in target for liveedit.

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Port 1e671030b9

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1502573002

Cr-Commit-Position: refs/heads/master@{#32625}
This commit is contained in:
mbrandy 2015-12-04 09:48:56 -08:00 committed by Commit bot
parent cc17ead444
commit fe35487860
2 changed files with 7 additions and 16 deletions
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15
src/debug/ppc/debug-ppc.cc
View File

@ -115,19 +115,7 @@ void DebugCodegen::GenerateDebugBreakStub(MacroAssembler* masm,
}
void DebugCodegen::GeneratePlainReturnLiveEdit(MacroAssembler* masm) {
__ Ret();
}
void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
ExternalReference restarter_frame_function_slot =
ExternalReference::debug_restarter_frame_function_pointer_address(
masm->isolate());
__ mov(ip, Operand(restarter_frame_function_slot));
__ li(r4, Operand::Zero());
__ StoreP(r4, MemOperand(ip, 0));
// Load the function pointer off of our current stack frame.
__ LoadP(r4, MemOperand(fp, StandardFrameConstants::kConstantPoolOffset -
kPointerSize));
@ -135,6 +123,9 @@ void DebugCodegen::GenerateFrameDropperLiveEdit(MacroAssembler* masm) {
// Pop return address and frame
__ LeaveFrame(StackFrame::INTERNAL);
ParameterCount dummy(0);
__ FloodFunctionIfStepping(r4, no_reg, dummy, dummy);
// Load context from the function.
__ LoadP(cp, FieldMemOperand(r4, JSFunction::kContextOffset));

8
src/ppc/macro-assembler-ppc.h
View File

@ -563,6 +563,10 @@ class MacroAssembler : public Assembler {
const ParameterCount& actual, InvokeFlag flag,
const CallWrapper& call_wrapper);
void FloodFunctionIfStepping(Register fun, Register new_target,
const ParameterCount& expected,
const ParameterCount& actual);
// Invoke the JavaScript function in the given register. Changes the
// current context to the context in the function before invoking.
void InvokeFunction(Register function, Register new_target,
@ -1495,10 +1499,6 @@ class MacroAssembler : public Assembler {
bool* definitely_mismatches, InvokeFlag flag,
const CallWrapper& call_wrapper);
void FloodFunctionIfStepping(Register fun, Register new_target,
const ParameterCount& expected,
const ParameterCount& actual);
void InitializeNewString(Register string, Register length,
Heap::RootListIndex map_index, Register scratch1,
Register scratch2);