summaryrefslogtreecommitdiffstats
path: root/Source/JavaScriptCore/jit/JITStubs.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'Source/JavaScriptCore/jit/JITStubs.cpp')
-rw-r--r--Source/JavaScriptCore/jit/JITStubs.cpp198
1 files changed, 23 insertions, 175 deletions
diff --git a/Source/JavaScriptCore/jit/JITStubs.cpp b/Source/JavaScriptCore/jit/JITStubs.cpp
index ded3428..74f505f 100644
--- a/Source/JavaScriptCore/jit/JITStubs.cpp
+++ b/Source/JavaScriptCore/jit/JITStubs.cpp
@@ -79,7 +79,7 @@ namespace JSC {
#define THUMB_FUNC_PARAM(name)
#endif
-#if OS(LINUX) && CPU(X86_64)
+#if (OS(LINUX) || OS(FREEBSD)) && CPU(X86_64)
#define SYMBOL_STRING_RELOCATION(name) #name "@plt"
#elif OS(DARWIN)
#define SYMBOL_STRING_RELOCATION(name) "_" #name
@@ -221,7 +221,7 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
"ret" "\n"
);
-#elif COMPILER(GCC) && CPU(ARM_THUMB2)
+#elif (COMPILER(GCC) || COMPILER(RVCT)) && CPU(ARM_THUMB2)
#define THUNK_RETURN_ADDRESS_OFFSET 0x38
#define PRESERVED_RETURN_ADDRESS_OFFSET 0x3C
@@ -233,8 +233,10 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
#define EXCEPTION_OFFSET 0x54
#define ENABLE_PROFILER_REFERENCE_OFFSET 0x58
-#elif (COMPILER(GCC) || COMPILER(RVCT)) && CPU(ARM_TRADITIONAL)
+#elif (COMPILER(GCC) || COMPILER(MSVC) || COMPILER(RVCT)) && CPU(ARM_TRADITIONAL)
+// Also update the MSVC section (defined at DEFINE_STUB_FUNCTION)
+// when changing one of the following values.
#define THUNK_RETURN_ADDRESS_OFFSET 64
#define PRESERVEDR4_OFFSET 68
@@ -298,12 +300,6 @@ extern "C" {
}
}
-#elif COMPILER(MSVC) && CPU(ARM_TRADITIONAL)
-
-#define THUNK_RETURN_ADDRESS_OFFSET 64
-#define PRESERVEDR4_OFFSET 68
-// See DEFINE_STUB_FUNCTION for more information.
-
#elif CPU(MIPS)
#define PRESERVED_GP_OFFSET 60
@@ -325,58 +321,7 @@ extern "C" {
#else // USE(JSVALUE32_64)
-#if COMPILER(GCC) && CPU(X86)
-
-// These ASSERTs remind you that, if you change the layout of JITStackFrame, you
-// need to change the assembly trampolines below to match.
-COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x38, JITStackFrame_callFrame_offset_matches_ctiTrampoline);
-COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x30, JITStackFrame_code_offset_matches_ctiTrampoline);
-COMPILE_ASSERT(offsetof(struct JITStackFrame, savedEBX) == 0x1c, JITStackFrame_stub_argument_space_matches_ctiTrampoline);
-
-asm (
-".text\n"
-".globl " SYMBOL_STRING(ctiTrampoline) "\n"
-HIDE_SYMBOL(ctiTrampoline) "\n"
-SYMBOL_STRING(ctiTrampoline) ":" "\n"
- "pushl %ebp" "\n"
- "movl %esp, %ebp" "\n"
- "pushl %esi" "\n"
- "pushl %edi" "\n"
- "pushl %ebx" "\n"
- "subl $0x1c, %esp" "\n"
- "movl $512, %esi" "\n"
- "movl 0x38(%esp), %edi" "\n"
- "call *0x30(%esp)" "\n"
- "addl $0x1c, %esp" "\n"
- "popl %ebx" "\n"
- "popl %edi" "\n"
- "popl %esi" "\n"
- "popl %ebp" "\n"
- "ret" "\n"
-);
-
-asm (
-".globl " SYMBOL_STRING(ctiVMThrowTrampoline) "\n"
-HIDE_SYMBOL(ctiVMThrowTrampoline) "\n"
-SYMBOL_STRING(ctiVMThrowTrampoline) ":" "\n"
- "movl %esp, %ecx" "\n"
- "call " SYMBOL_STRING_RELOCATION(cti_vm_throw) "\n"
- "int3" "\n"
-);
-
-asm (
-".globl " SYMBOL_STRING(ctiOpThrowNotCaught) "\n"
-HIDE_SYMBOL(ctiOpThrowNotCaught) "\n"
-SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
- "addl $0x1c, %esp" "\n"
- "popl %ebx" "\n"
- "popl %edi" "\n"
- "popl %esi" "\n"
- "popl %ebp" "\n"
- "ret" "\n"
-);
-
-#elif COMPILER(GCC) && CPU(X86_64)
+#if COMPILER(GCC) && CPU(X86_64)
// These ASSERTs remind you that, if you change the layout of JITStackFrame, you
// need to change the assembly trampolines below to match.
@@ -442,103 +387,6 @@ SYMBOL_STRING(ctiOpThrowNotCaught) ":" "\n"
"ret" "\n"
);
-#elif COMPILER(GCC) && CPU(ARM_THUMB2)
-
-#define THUNK_RETURN_ADDRESS_OFFSET 0x20
-#define PRESERVED_RETURN_ADDRESS_OFFSET 0x24
-#define PRESERVED_R4_OFFSET 0x28
-#define PRESERVED_R5_OFFSET 0x2C
-#define PRESERVED_R6_OFFSET 0x30
-#define REGISTER_FILE_OFFSET 0x34
-#define CALLFRAME_OFFSET 0x38
-#define EXCEPTION_OFFSET 0x3C
-#define ENABLE_PROFILER_REFERENCE_OFFSET 0x40
-
-#elif (COMPILER(GCC) || COMPILER(RVCT)) && CPU(ARM_TRADITIONAL)
-
-#define THUNK_RETURN_ADDRESS_OFFSET 32
-#define PRESERVEDR4_OFFSET 36
-
-#elif CPU(MIPS)
-
-#define PRESERVED_GP_OFFSET 28
-#define PRESERVED_S0_OFFSET 32
-#define PRESERVED_S1_OFFSET 36
-#define PRESERVED_S2_OFFSET 40
-#define PRESERVED_RETURN_ADDRESS_OFFSET 44
-#define THUNK_RETURN_ADDRESS_OFFSET 48
-#define REGISTER_FILE_OFFSET 52
-#define CALLFRAME_OFFSET 56
-#define EXCEPTION_OFFSET 60
-#define ENABLE_PROFILER_REFERENCE_OFFSET 64
-#define GLOBAL_DATA_OFFSET 68
-#define STACK_LENGTH 72
-
-#elif COMPILER(MSVC) && CPU(X86)
-
-// These ASSERTs remind you that, if you change the layout of JITStackFrame, you
-// need to change the assembly trampolines below to match.
-COMPILE_ASSERT(offsetof(struct JITStackFrame, callFrame) == 0x38, JITStackFrame_callFrame_offset_matches_ctiTrampoline);
-COMPILE_ASSERT(offsetof(struct JITStackFrame, code) == 0x30, JITStackFrame_code_offset_matches_ctiTrampoline);
-COMPILE_ASSERT(offsetof(struct JITStackFrame, savedEBX) == 0x1c, JITStackFrame_stub_argument_space_matches_ctiTrampoline);
-
-extern "C" {
-
- __declspec(naked) EncodedJSValue ctiTrampoline(void* code, RegisterFile*, CallFrame*, void* /*unused1*/, Profiler**, JSGlobalData*)
- {
- __asm {
- push ebp;
- mov ebp, esp;
- push esi;
- push edi;
- push ebx;
- sub esp, 0x1c;
- mov esi, 512;
- mov ecx, esp;
- mov edi, [esp + 0x38];
- call [esp + 0x30];
- add esp, 0x1c;
- pop ebx;
- pop edi;
- pop esi;
- pop ebp;
- ret;
- }
- }
-
- __declspec(naked) void ctiVMThrowTrampoline()
- {
- __asm {
- mov ecx, esp;
- call cti_vm_throw;
- add esp, 0x1c;
- pop ebx;
- pop edi;
- pop esi;
- pop ebp;
- ret;
- }
- }
-
- __declspec(naked) void ctiOpThrowNotCaught()
- {
- __asm {
- add esp, 0x1c;
- pop ebx;
- pop edi;
- pop esi;
- pop ebp;
- ret;
- }
- }
-}
-
-#elif COMPILER(MSVC) && CPU(ARM_TRADITIONAL)
-
-#define THUNK_RETURN_ADDRESS_OFFSET 32
-#define PRESERVEDR4_OFFSET 36
-// See DEFINE_STUB_FUNCTION for more information.
-
#else
#error "JIT not supported on this platform."
#endif
@@ -997,7 +845,7 @@ NEVER_INLINE void JITThunks::tryCacheGetByID(CallFrame* callFrame, CodeBlock* co
// Since we're accessing a prototype in a loop, it's a good bet that it
// should not be treated as a dictionary.
if (slotBaseObject->structure()->isDictionary()) {
- slotBaseObject->flattenDictionaryObject();
+ slotBaseObject->flattenDictionaryObject(callFrame->globalData());
offset = slotBaseObject->structure()->get(propertyName);
}
@@ -1094,17 +942,17 @@ static NEVER_INLINE void throwStackOverflowError(CallFrame* callFrame, JSGlobalD
#define CHECK_FOR_EXCEPTION() \
do { \
- if (UNLIKELY(stackFrame.globalData->exception)) \
+ if (UNLIKELY(stackFrame.globalData->exception.get())) \
VM_THROW_EXCEPTION(); \
} while (0)
#define CHECK_FOR_EXCEPTION_AT_END() \
do { \
- if (UNLIKELY(stackFrame.globalData->exception)) \
+ if (UNLIKELY(stackFrame.globalData->exception.get())) \
VM_THROW_EXCEPTION_AT_END(); \
} while (0)
#define CHECK_FOR_EXCEPTION_VOID() \
do { \
- if (UNLIKELY(stackFrame.globalData->exception)) { \
+ if (UNLIKELY(stackFrame.globalData->exception.get())) { \
VM_THROW_EXCEPTION_AT_END(); \
return; \
} \
@@ -1270,13 +1118,13 @@ MSVC_BEGIN()
MSVC_BEGIN(ctiTrampoline PROC)
MSVC_BEGIN( stmdb sp!, {r1-r3})
MSVC_BEGIN( stmdb sp!, {r4-r8, lr})
-MSVC_BEGIN( sub sp, sp, # THUNK_RETURN_ADDRESS_OFFSET + 4)
+MSVC_BEGIN( sub sp, sp, #68 ; sync with PRESERVEDR4_OFFSET)
MSVC_BEGIN( mov r4, r2)
MSVC_BEGIN( mov r5, #512)
MSVC_BEGIN( ; r0 contains the code)
MSVC_BEGIN( mov lr, pc)
MSVC_BEGIN( bx r0)
-MSVC_BEGIN( add sp, sp, # THUNK_RETURN_ADDRESS_OFFSET + 4)
+MSVC_BEGIN( add sp, sp, #68 ; sync with PRESERVEDR4_OFFSET)
MSVC_BEGIN( ldmia sp!, {r4-r8, lr})
MSVC_BEGIN( add sp, sp, #12)
MSVC_BEGIN( bx lr)
@@ -1287,7 +1135,7 @@ MSVC_BEGIN( mov r0, sp)
MSVC_BEGIN( mov lr, pc)
MSVC_BEGIN( bl cti_vm_throw)
MSVC_BEGIN(ctiOpThrowNotCaught)
-MSVC_BEGIN( add sp, sp, # THUNK_RETURN_ADDRESS_OFFSET + 4)
+MSVC_BEGIN( add sp, sp, #68 ; sync with PRESERVEDR4_OFFSET)
MSVC_BEGIN( ldmia sp!, {r4-r8, lr})
MSVC_BEGIN( add sp, sp, #12)
MSVC_BEGIN( bx lr)
@@ -1297,9 +1145,9 @@ MSVC_BEGIN()
MSVC( EXPORT cti_#op#)
MSVC( IMPORT JITStubThunked_#op#)
MSVC(cti_#op# PROC)
-MSVC( str lr, [sp, # THUNK_RETURN_ADDRESS_OFFSET])
+MSVC( str lr, [sp, #64] ; sync with THUNK_RETURN_ADDRESS_OFFSET)
MSVC( bl JITStubThunked_#op#)
-MSVC( ldr lr, [sp, # THUNK_RETURN_ADDRESS_OFFSET])
+MSVC( ldr lr, [sp, #64] ; sync with THUNK_RETURN_ADDRESS_OFFSET)
MSVC( bx lr)
MSVC(cti_#op# ENDP)
MSVC()
@@ -1618,7 +1466,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_get_by_id_method_check)
// Since we're accessing a prototype in a loop, it's a good bet that it
// should not be treated as a dictionary.
if (slotBaseObject->structure()->isDictionary())
- slotBaseObject->flattenDictionaryObject();
+ slotBaseObject->flattenDictionaryObject(callFrame->globalData());
// The result fetched should always be the callee!
ASSERT(result == JSValue(callee));
@@ -1808,7 +1656,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_get_by_id_proto_list)
// Since we're accessing a prototype in a loop, it's a good bet that it
// should not be treated as a dictionary.
if (slotBaseObject->structure()->isDictionary()) {
- slotBaseObject->flattenDictionaryObject();
+ slotBaseObject->flattenDictionaryObject(callFrame->globalData());
offset = slotBaseObject->structure()->get(propertyName);
}
@@ -2299,7 +2147,7 @@ DEFINE_STUB_FUNCTION(void, op_tear_off_activation)
activation->copyRegisters();
if (JSValue v = stackFrame.args[1].jsValue()) {
if (!stackFrame.callFrame->codeBlock()->isStrictMode())
- asArguments(v)->setActivation(activation);
+ asArguments(v)->setActivation(*stackFrame.globalData, activation);
}
}
@@ -2356,7 +2204,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_resolve)
Identifier& ident = stackFrame.args[0].identifier();
do {
- JSObject* o = *iter;
+ JSObject* o = iter->get();
PropertySlot slot(o);
if (o->getPropertySlot(callFrame, ident, slot)) {
JSValue result = slot.getValue(callFrame, ident);
@@ -2549,7 +2397,7 @@ DEFINE_STUB_FUNCTION(void, op_put_by_val)
if (isJSArray(globalData, baseValue)) {
JSArray* jsArray = asArray(baseValue);
if (jsArray->canSetIndex(i))
- jsArray->setIndex(i, value);
+ jsArray->setIndex(*globalData, i, value);
else
jsArray->JSArray::put(callFrame, i, value);
} else if (isJSByteArray(globalData, baseValue) && asByteArray(baseValue)->canAccessIndex(i)) {
@@ -2797,7 +2645,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_resolve_skip)
}
Identifier& ident = stackFrame.args[0].identifier();
do {
- JSObject* o = *iter;
+ JSObject* o = iter->get();
PropertySlot slot(o);
if (o->getPropertySlot(callFrame, ident, slot)) {
JSValue result = slot.getValue(callFrame, ident);
@@ -3126,7 +2974,7 @@ DEFINE_STUB_FUNCTION(EncodedJSValue, op_resolve_with_base)
Identifier& ident = stackFrame.args[0].identifier();
JSObject* base;
do {
- base = *iter;
+ base = iter->get();
PropertySlot slot(base);
if (base->getPropertySlot(callFrame, ident, slot)) {
JSValue result = slot.getValue(callFrame, ident);
@@ -3632,7 +3480,7 @@ DEFINE_STUB_FUNCTION(void*, vm_throw)
{
STUB_INIT_STACK_FRAME(stackFrame);
JSGlobalData* globalData = stackFrame.globalData;
- ExceptionHandler handler = jitThrow(globalData, stackFrame.callFrame, globalData->exception, globalData->exceptionLocation);
+ ExceptionHandler handler = jitThrow(globalData, stackFrame.callFrame, globalData->exception.get(), globalData->exceptionLocation);
STUB_SET_RETURN_ADDRESS(handler.catchRoutine);
return handler.callFrame;
}
generated by cgit v1.1 at 2025-06-04 07:19:44 +0000