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Diffstat (limited to 'src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp')
-rw-r--r--src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp96
1 files changed, 44 insertions, 52 deletions
diff --git a/src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp b/src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp
index 065b7ea..90ea807 100644
--- a/src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp
+++ b/src/3rdparty/webkit/JavaScriptCore/jit/JITStubs.cpp
@@ -75,6 +75,12 @@ namespace JSC {
#define THUMB_FUNC_PARAM(name)
#endif
+#if PLATFORM(LINUX) && PLATFORM(X86_64)
+#define SYMBOL_STRING_RELOCATION(name) #name "@plt"
+#else
+#define SYMBOL_STRING_RELOCATION(name) SYMBOL_STRING(name)
+#endif
+
#if USE(JSVALUE32_64)
#if COMPILER(GCC) && PLATFORM(X86)
@@ -112,7 +118,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
#if !USE(JIT_STUB_ARGUMENT_VA_LIST)
"movl %esp, %ecx" "\n"
#endif
- "call " SYMBOL_STRING(cti_vm_throw) "\n"
+ "call " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"addl $0x3c, %esp" "\n"
"popl %ebx" "\n"
"popl %edi" "\n"
@@ -175,7 +181,7 @@ asm volatile (
".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
"movq %rsp, %rdi" "\n"
- "call " SYMBOL_STRING(cti_vm_throw) "\n"
+ "call " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"addq $0x48, %rsp" "\n"
"popq %rbx" "\n"
"popq %r15" "\n"
@@ -239,7 +245,7 @@ asm volatile (
".thumb_func " THUMB_FUNC_PARAM(ctiVMThrowTrampoline) "\n"
SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
"cpy r0, sp" "\n"
- "bl " SYMBOL_STRING(cti_vm_throw) "\n"
+ "bl " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"ldr r6, [sp, #0x2c]" "\n"
"ldr r5, [sp, #0x28]" "\n"
"ldr r4, [sp, #0x24]" "\n"
@@ -365,7 +371,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
#if !USE(JIT_STUB_ARGUMENT_VA_LIST)
"movl %esp, %ecx" "\n"
#endif
- "call " SYMBOL_STRING(cti_vm_throw) "\n"
+ "call " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"addl $0x1c, %esp" "\n"
"popl %ebx" "\n"
"popl %edi" "\n"
@@ -434,7 +440,7 @@ asm volatile (
".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
"movq %rsp, %rdi" "\n"
- "call " SYMBOL_STRING(cti_vm_throw) "\n"
+ "call " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"addq $0x78, %rsp" "\n"
"popq %rbx" "\n"
"popq %r15" "\n"
@@ -498,7 +504,7 @@ asm volatile (
".thumb_func " THUMB_FUNC_PARAM(ctiVMThrowTrampoline) "\n"
SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
"cpy r0, sp" "\n"
- "bl " SYMBOL_STRING(cti_vm_throw) "\n"
+ "bl " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
"ldr r6, [sp, #0x2c]" "\n"
"ldr r5, [sp, #0x28]" "\n"
"ldr r4, [sp, #0x24]" "\n"
@@ -554,7 +560,7 @@ SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
"mov lr, r6" "\n"
"add r8, pc, #4" "\n"
"str r8, [sp, #-4]!" "\n"
- "b " SYMBOL_STRING(cti_vm_throw) "\n"
+ "b " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
// Both has the same return sequence
".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
@@ -694,11 +700,15 @@ NEVER_INLINE void JITThunks::tryCachePutByID(CallFrame* callFrame, CodeBlock* co
// Structure transition, cache transition info
if (slot.type() == PutPropertySlot::NewProperty) {
- StructureChain* prototypeChain = structure->prototypeChain(callFrame);
- if (!prototypeChain->isCacheable() || structure->isDictionary()) {
+ if (structure->isDictionary()) {
ctiPatchCallByReturnAddress(codeBlock, returnAddress, FunctionPtr(cti_op_put_by_id_generic));
return;
}
+
+ // put_by_id_transition checks the prototype chain for setters.
+ normalizePrototypeChain(callFrame, baseCell);
+
+ StructureChain* prototypeChain = structure->prototypeChain(callFrame);
stubInfo->initPutByIdTransition(structure->previousID(), structure, prototypeChain);
JIT::compilePutByIdTransition(callFrame->scopeChain()->globalData, codeBlock, stubInfo, structure->previousID(), structure, slot.cachedOffset(), prototypeChain, returnAddress);
return;
@@ -774,17 +784,13 @@ NEVER_INLINE void JITThunks::tryCacheGetByID(CallFrame* callFrame, CodeBlock* co
return;
}
- size_t count = countPrototypeChainEntriesAndCheckForProxies(callFrame, baseValue, slot);
+ size_t count = normalizePrototypeChain(callFrame, baseValue, slot.slotBase());
if (!count) {
stubInfo->accessType = access_get_by_id_generic;
return;
}
StructureChain* prototypeChain = structure->prototypeChain(callFrame);
- if (!prototypeChain->isCacheable()) {
- ctiPatchCallByReturnAddress(codeBlock, returnAddress, FunctionPtr(cti_op_get_by_id_generic));
- return;
- }
stubInfo->initGetByIdChain(structure, prototypeChain);
JIT::compileGetByIdChain(callFrame->scopeChain()->globalData, callFrame, codeBlock, stubInfo, structure, prototypeChain, count, slot.cachedOffset(), returnAddress);
}
@@ -1326,15 +1332,11 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_get_by_id_proto_list)
if (listIndex == (POLYMORPHIC_LIST_CACHE_SIZE - 1))
ctiPatchCallByReturnAddress(codeBlock, STUB_RETURN_ADDRESS, FunctionPtr(cti_op_get_by_id_proto_list_full));
- } else if (size_t count = countPrototypeChainEntriesAndCheckForProxies(callFrame, baseValue, slot)) {
- StructureChain* protoChain = structure->prototypeChain(callFrame);
- if (!protoChain->isCacheable()) {
- ctiPatchCallByReturnAddress(codeBlock, STUB_RETURN_ADDRESS, FunctionPtr(cti_op_get_by_id_proto_fail));
- return JSValue::encode(result);
- }
-
+ } else if (size_t count = normalizePrototypeChain(callFrame, baseValue, slot.slotBase())) {
int listIndex;
PolymorphicAccessStructureList* prototypeStructureList = getPolymorphicAccessStructureListSlot(stubInfo, listIndex);
+
+ StructureChain* protoChain = structure->prototypeChain(callFrame);
JIT::compileGetByIdChainList(callFrame->scopeChain()->globalData, callFrame, codeBlock, stubInfo, prototypeStructureList, listIndex, structure, protoChain, count, slot.cachedOffset());
if (listIndex == (POLYMORPHIC_LIST_CACHE_SIZE - 1))
@@ -1412,7 +1414,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_instanceof)
// ECMA-262 15.3.5.3:
// Throw an exception either if baseVal is not an object, or if it does not implement 'HasInstance' (i.e. is a function).
- TypeInfo typeInfo(UnspecifiedType, 0);
+ TypeInfo typeInfo(UnspecifiedType);
if (!baseVal.isObject() || !(typeInfo = asObject(baseVal)->structure()->typeInfo()).implementsHasInstance()) {
CallFrame* callFrame = stackFrame.callFrame;
CodeBlock* codeBlock = callFrame->codeBlock();
@@ -1942,28 +1944,6 @@ DEFINE_STUB_FUNCTION(void, op_put_by_val)
CHECK_FOR_EXCEPTION_AT_END();
}
-DEFINE_STUB_FUNCTION(void, op_put_by_val_array)
-{
- STUB_INIT_STACK_FRAME(stackFrame);
-
- CallFrame* callFrame = stackFrame.callFrame;
- JSValue baseValue = stackFrame.args[0].jsValue();
- int i = stackFrame.args[1].int32();
- JSValue value = stackFrame.args[2].jsValue();
-
- ASSERT(isJSArray(stackFrame.globalData, baseValue));
-
- if (LIKELY(i >= 0))
- asArray(baseValue)->JSArray::put(callFrame, i, value);
- else {
- Identifier property(callFrame, UString::from(i));
- PutPropertySlot slot;
- baseValue.put(callFrame, property, value, slot);
- }
-
- CHECK_FOR_EXCEPTION_AT_END();
-}
-
DEFINE_STUB_FUNCTION(void, op_put_by_val_byte_array)
{
STUB_INIT_STACK_FRAME(stackFrame);
@@ -2672,7 +2652,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_throw)
if (!handler) {
*stackFrame.exception = exceptionValue;
- STUB_SET_RETURN_ADDRESS(reinterpret_cast<void*>(ctiOpThrowNotCaught));
+ STUB_SET_RETURN_ADDRESS(FunctionPtr(ctiOpThrowNotCaught).value());
return JSValue::encode(jsNull());
}
@@ -2687,18 +2667,22 @@ DEFINE_STUB_FUNCTION(JSPropertyNameIterator*, op_get_pnames)
{
STUB_INIT_STACK_FRAME(stackFrame);
- return JSPropertyNameIterator::create(stackFrame.callFrame, stackFrame.args[0].jsValue());
+ CallFrame* callFrame = stackFrame.callFrame;
+ JSObject* o = stackFrame.args[0].jsObject();
+ Structure* structure = o->structure();
+ JSPropertyNameIterator* jsPropertyNameIterator = structure->enumerationCache();
+ if (!jsPropertyNameIterator || jsPropertyNameIterator->cachedPrototypeChain() != structure->prototypeChain(callFrame))
+ jsPropertyNameIterator = JSPropertyNameIterator::create(callFrame, o);
+ return jsPropertyNameIterator;
}
-DEFINE_STUB_FUNCTION(EncodedJSValue, op_next_pname)
+DEFINE_STUB_FUNCTION(int, has_property)
{
STUB_INIT_STACK_FRAME(stackFrame);
- JSPropertyNameIterator* it = stackFrame.args[0].propertyNameIterator();
- JSValue temp = it->next(stackFrame.callFrame);
- if (!temp)
- it->invalidate();
- return JSValue::encode(temp);
+ JSObject* base = stackFrame.args[0].jsObject();
+ JSString* property = stackFrame.args[1].jsString();
+ return base->hasProperty(stackFrame.callFrame, Identifier(stackFrame.callFrame, property->value()));
}
DEFINE_STUB_FUNCTION(JSObject*, op_push_scope)
@@ -3039,6 +3023,14 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, vm_throw)
return JSValue::encode(exceptionValue);
}
+DEFINE_STUB_FUNCTION(EncodedJSValue, to_object)
+{
+ STUB_INIT_STACK_FRAME(stackFrame);
+
+ CallFrame* callFrame = stackFrame.callFrame;
+ return JSValue::encode(stackFrame.args[0].jsValue().toObject(callFrame));
+}
+
} // namespace JSC
#endif // ENABLE(JIT)
generated by cgit v0.12 at 2025-08-07 17:43:52 (GMT)