[apple/javascriptcore.git] / jit / JITStubs.h

/*
 * Copyright (C) 2008 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1.  Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 * 2.  Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
 *     its contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef JITStubs_h
#define JITStubs_h

#include "MacroAssemblerCodeRef.h"
#include "Register.h"
#include "ThunkGenerators.h"
#include <wtf/HashMap.h>

#if ENABLE(JIT)

namespace JSC {

    struct StructureStubInfo;

    class CodeBlock;
    class ExecutablePool;
    class FunctionExecutable;
    class Identifier;
    class JSGlobalData;
    class JSGlobalObject;
    class JSObject;
    class JSPropertyNameIterator;
    class JSValue;
    class JSValueEncodedAsPointer;
    class NativeExecutable;
    class Profiler;
    class PropertySlot;
    class PutPropertySlot;
    class RegisterFile;
    class RegExp;

    union JITStubArg {
        void* asPointer;
        EncodedJSValue asEncodedJSValue;
        int32_t asInt32;

        JSValue jsValue() { return JSValue::decode(asEncodedJSValue); }
        JSObject* jsObject() { return static_cast<JSObject*>(asPointer); }
        Identifier& identifier() { return *static_cast<Identifier*>(asPointer); }
        int32_t int32() { return asInt32; }
        CodeBlock* codeBlock() { return static_cast<CodeBlock*>(asPointer); }
        FunctionExecutable* function() { return static_cast<FunctionExecutable*>(asPointer); }
        RegExp* regExp() { return static_cast<RegExp*>(asPointer); }
        JSPropertyNameIterator* propertyNameIterator() { return static_cast<JSPropertyNameIterator*>(asPointer); }
        JSGlobalObject* globalObject() { return static_cast<JSGlobalObject*>(asPointer); }
        JSString* jsString() { return static_cast<JSString*>(asPointer); }
        ReturnAddressPtr returnAddress() { return ReturnAddressPtr(asPointer); }
    };
    
    struct TrampolineStructure {
        MacroAssemblerCodePtr ctiStringLengthTrampoline;
        MacroAssemblerCodePtr ctiVirtualCallLink;
        MacroAssemblerCodePtr ctiVirtualCall;
        RefPtr<NativeExecutable> ctiNativeCallThunk;
        MacroAssemblerCodePtr ctiSoftModulo;
    };

#if CPU(X86_64)
    struct JITStackFrame {
        void* reserved; // Unused
        JITStubArg args[6];
        void* padding[2]; // Maintain 32-byte stack alignment (possibly overkill).

        void* code;
        RegisterFile* registerFile;
        CallFrame* callFrame;
        JSValue* exception;
        Profiler** enabledProfilerReference;
        JSGlobalData* globalData;

        void* savedRBX;
        void* savedR15;
        void* savedR14;
        void* savedR13;
        void* savedR12;
        void* savedRBP;
        void* savedRIP;

        // When JIT code makes a call, it pushes its return address just below the rest of the stack.
        ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; }
    };
#elif CPU(X86)
#if COMPILER(MSVC) || (OS(WINDOWS) && COMPILER(GCC))
#pragma pack(push)
#pragma pack(4)
#endif // COMPILER(MSVC) || (OS(WINDOWS) && COMPILER(GCC))
    struct JITStackFrame {
        void* reserved; // Unused
        JITStubArg args[6];
#if USE(JSVALUE32_64)
        void* padding[2]; // Maintain 16-byte stack alignment.
#endif

        void* savedEBX;
        void* savedEDI;
        void* savedESI;
        void* savedEBP;
        void* savedEIP;

        void* code;
        RegisterFile* registerFile;
        CallFrame* callFrame;
        JSValue* exception;
        Profiler** enabledProfilerReference;
        JSGlobalData* globalData;
        
        // When JIT code makes a call, it pushes its return address just below the rest of the stack.
        ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; }
    };
#if COMPILER(MSVC) || (OS(WINDOWS) && COMPILER(GCC))
#pragma pack(pop)
#endif // COMPILER(MSVC) || (OS(WINDOWS) && COMPILER(GCC))
#elif CPU(ARM_THUMB2)
    struct JITStackFrame {
        void* reserved; // Unused
        JITStubArg args[6];
#if USE(JSVALUE32_64)
        void* padding[2]; // Maintain 16-byte stack alignment.
#endif

        ReturnAddressPtr thunkReturnAddress;

        void* preservedReturnAddress;
        void* preservedR4;
        void* preservedR5;
        void* preservedR6;

        // These arguments passed in r1..r3 (r0 contained the entry code pointed, which is not preserved)
        RegisterFile* registerFile;
        CallFrame* callFrame;
        JSValue* exception;

        void* padding2;

        // These arguments passed on the stack.
        Profiler** enabledProfilerReference;
        JSGlobalData* globalData;
        
        ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
    };
#elif CPU(ARM_TRADITIONAL)
    struct JITStackFrame {
        JITStubArg padding; // Unused
        JITStubArg args[7];

        ReturnAddressPtr thunkReturnAddress;

        void* preservedR4;
        void* preservedR5;
        void* preservedR6;
        void* preservedR7;
        void* preservedR8;
        void* preservedLink;

        RegisterFile* registerFile;
        CallFrame* callFrame;
        JSValue* exception;

        // These arguments passed on the stack.
        Profiler** enabledProfilerReference;
        JSGlobalData* globalData;

        // When JIT code makes a call, it pushes its return address just below the rest of the stack.
        ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
    };
#elif CPU(MIPS)
    struct JITStackFrame {
        void* reserved; // Unused
        JITStubArg args[6];

        void* preservedGP; // store GP when using PIC code
        void* preservedS0;
        void* preservedS1;
        void* preservedS2;
        void* preservedReturnAddress;

        ReturnAddressPtr thunkReturnAddress;

        // These arguments passed in a1..a3 (a0 contained the entry code pointed, which is not preserved)
        RegisterFile* registerFile;
        CallFrame* callFrame;
        JSValue* exception;

        // These arguments passed on the stack.
        Profiler** enabledProfilerReference;
        JSGlobalData* globalData;

        ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
    };
#else
#error "JITStackFrame not defined for this platform."
#endif

#define JITSTACKFRAME_ARGS_INDEX (OBJECT_OFFSETOF(JITStackFrame, args) / sizeof(void*))

#if USE(JIT_STUB_ARGUMENT_VA_LIST)
    #define STUB_ARGS_DECLARATION void* args, ...
    #define STUB_ARGS (reinterpret_cast<void**>(vl_args) - 1)

    #if COMPILER(MSVC)
    #define JIT_STUB __cdecl
    #else
    #define JIT_STUB
    #endif
#else
    #define STUB_ARGS_DECLARATION void** args
    #define STUB_ARGS (args)

    #if CPU(X86) && COMPILER(MSVC)
    #define JIT_STUB __fastcall
    #elif CPU(X86) && COMPILER(GCC)
    #define JIT_STUB  __attribute__ ((fastcall))
    #else
    #define JIT_STUB
    #endif
#endif

#if CPU(X86_64)
    struct VoidPtrPair {
        void* first;
        void* second;
    };
    #define RETURN_POINTER_PAIR(a,b) VoidPtrPair pair = { a, b }; return pair
#else
    // MSVC doesn't support returning a two-value struct in two registers, so
    // we cast the struct to int64_t instead.
    typedef uint64_t VoidPtrPair;
    union VoidPtrPairUnion {
        struct { void* first; void* second; } s;
        VoidPtrPair i;
    };
    #define RETURN_POINTER_PAIR(a,b) VoidPtrPairUnion pair = {{ a, b }}; return pair.i
#endif

    extern "C" void ctiVMThrowTrampoline();
    extern "C" void ctiOpThrowNotCaught();
    extern "C" EncodedJSValue ctiTrampoline(void* code, RegisterFile*, CallFrame*, JSValue* exception, Profiler**, JSGlobalData*);

    class JITThunks {
    public:
        JITThunks(JSGlobalData*);
        ~JITThunks();

        static void tryCacheGetByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const Identifier& propertyName, const PropertySlot&, StructureStubInfo* stubInfo);
        static void tryCachePutByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const PutPropertySlot&, StructureStubInfo* stubInfo, bool direct);

        MacroAssemblerCodePtr ctiStringLengthTrampoline() { return m_trampolineStructure.ctiStringLengthTrampoline; }
        MacroAssemblerCodePtr ctiVirtualCallLink() { return m_trampolineStructure.ctiVirtualCallLink; }
        MacroAssemblerCodePtr ctiVirtualCall() { return m_trampolineStructure.ctiVirtualCall; }
        NativeExecutable* ctiNativeCallThunk() { return m_trampolineStructure.ctiNativeCallThunk.get(); }
        MacroAssemblerCodePtr ctiSoftModulo() { return m_trampolineStructure.ctiSoftModulo; }

        NativeExecutable* specializedThunk(JSGlobalData* globalData, ThunkGenerator generator);
    private:
        typedef HashMap<ThunkGenerator, RefPtr<NativeExecutable> > ThunkMap;
        ThunkMap m_thunkMap;
        RefPtr<ExecutablePool> m_executablePool;

        TrampolineStructure m_trampolineStructure;
    };

extern "C" {
    EncodedJSValue JIT_STUB cti_op_add(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_bitand(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_bitnot(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_bitor(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_bitxor(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_call_NotJSFunction(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_call_eval(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_construct_NotJSConstruct(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_convert_this(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_del_by_id(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_del_by_val(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_div(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_array_fail(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_generic(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_method_check(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_getter_stub(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_custom_stub(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_proto_fail(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list_full(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_self_fail(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_id_string_fail(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_val(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_val_byte_array(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_get_by_val_string(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_in(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_instanceof(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_boolean(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_function(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_number(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_object(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_string(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_is_undefined(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_less(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_lesseq(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_lshift(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_mod(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_mul(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_negate(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_not(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_nstricteq(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_post_dec(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_post_inc(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_pre_dec(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_pre_inc(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve_base(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve_global(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve_global_dynamic(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve_skip(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_resolve_with_base(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_rshift(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_strcat(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_stricteq(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_sub(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_throw(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_to_jsnumber(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_to_primitive(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_typeof(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_op_urshift(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION);
    EncodedJSValue JIT_STUB cti_to_object(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_construct_JSConstruct(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_array(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_error(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_func(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_func_exp(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_object(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_new_regexp(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_push_activation(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_push_new_scope(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_push_scope(STUB_ARGS_DECLARATION);
    JSObject* JIT_STUB cti_op_put_by_id_transition_realloc(STUB_ARGS_DECLARATION);
    JSPropertyNameIterator* JIT_STUB cti_op_get_pnames(STUB_ARGS_DECLARATION);
    VoidPtrPair JIT_STUB cti_op_call_arityCheck(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_eq(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_eq_strings(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_jless(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_jlesseq(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_jtrue(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_load_varargs(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_op_loop_if_lesseq(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_timeout_check(STUB_ARGS_DECLARATION);
    int JIT_STUB cti_has_property(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_create_arguments(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_create_arguments_no_params(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_debug(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_end(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_jmp_scopes(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_pop_scope(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_profile_did_call(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_profile_will_call(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id_fail(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id_generic(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id_direct(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id_direct_fail(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_id_direct_generic(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_index(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_val(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_by_val_byte_array(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_getter(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_put_setter(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_ret_scopeChain(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_tear_off_activation(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_op_tear_off_arguments(STUB_ARGS_DECLARATION);
    void JIT_STUB cti_register_file_check(STUB_ARGS_DECLARATION);
    void* JIT_STUB cti_op_call_JSFunction(STUB_ARGS_DECLARATION);
    void* JIT_STUB cti_op_switch_char(STUB_ARGS_DECLARATION);
    void* JIT_STUB cti_op_switch_imm(STUB_ARGS_DECLARATION);
    void* JIT_STUB cti_op_switch_string(STUB_ARGS_DECLARATION);
    void* JIT_STUB cti_vm_lazyLinkCall(STUB_ARGS_DECLARATION);
} // extern "C"

} // namespace JSC

#endif // ENABLE(JIT)

#endif // JITStubs_h
Commit	Line	Data
ba379fdc A	1	/*
	2	* Copyright (C) 2008 Apple Inc. All rights reserved.
	3	*
	4	* Redistribution and use in source and binary forms, with or without
	5	* modification, are permitted provided that the following conditions
	6	* are met:
	7	*
	8	* 1. Redistributions of source code must retain the above copyright
	9	* notice, this list of conditions and the following disclaimer.
	10	* 2. Redistributions in binary form must reproduce the above copyright
	11	* notice, this list of conditions and the following disclaimer in the
	12	* documentation and/or other materials provided with the distribution.
	13	* 3. Neither the name of Apple Computer, Inc. ("Apple") nor the names of
	14	* its contributors may be used to endorse or promote products derived
	15	* from this software without specific prior written permission.
	16	*
	17	* THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
	18	* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
	19	* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
	20	* DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
	21	* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
	22	* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
	23	* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
	24	* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
	27	*/
	28
	29	#ifndef JITStubs_h
	30	#define JITStubs_h
	31
ba379fdc A	32	#include "MacroAssemblerCodeRef.h"
ba379fdc A	33	#include "Register.h"
4e4e5a6f A	34	#include "ThunkGenerators.h"
4e4e5a6f A	35	#include <wtf/HashMap.h>
ba379fdc A	36
	37	#if ENABLE(JIT)
	38
	39	namespace JSC {
	40
f9bf01c6 A	41	struct StructureStubInfo;
f9bf01c6 A	42
ba379fdc A	43	class CodeBlock;
ba379fdc A	44	class ExecutablePool;
f9bf01c6	45	class FunctionExecutable;
ba379fdc A	46	class Identifier;
ba379fdc A	47	class JSGlobalData;
4e4e5a6f	48	class JSGlobalObject;
ba379fdc A	49	class JSObject;
	50	class JSPropertyNameIterator;
	51	class JSValue;
	52	class JSValueEncodedAsPointer;
4e4e5a6f	53	class NativeExecutable;
ba379fdc A	54	class Profiler;
	55	class PropertySlot;
	56	class PutPropertySlot;
	57	class RegisterFile;
ba379fdc A	58	class RegExp;
	59
	60	union JITStubArg {
	61	void* asPointer;
	62	EncodedJSValue asEncodedJSValue;
	63	int32_t asInt32;
	64
	65	JSValue jsValue() { return JSValue::decode(asEncodedJSValue); }
f9bf01c6	66	JSObject* jsObject() { return static_cast<JSObject*>(asPointer); }
ba379fdc A	67	Identifier& identifier() { return static_cast<Identifier>(asPointer); }
	68	int32_t int32() { return asInt32; }
	69	CodeBlock* codeBlock() { return static_cast<CodeBlock*>(asPointer); }
f9bf01c6	70	FunctionExecutable* function() { return static_cast<FunctionExecutable*>(asPointer); }
ba379fdc A	71	RegExp* regExp() { return static_cast<RegExp*>(asPointer); }
	72	JSPropertyNameIterator* propertyNameIterator() { return static_cast<JSPropertyNameIterator*>(asPointer); }
	73	JSGlobalObject* globalObject() { return static_cast<JSGlobalObject*>(asPointer); }
	74	JSString* jsString() { return static_cast<JSString*>(asPointer); }
	75	ReturnAddressPtr returnAddress() { return ReturnAddressPtr(asPointer); }
	76	};
4e4e5a6f A	77
	78	struct TrampolineStructure {
	79	MacroAssemblerCodePtr ctiStringLengthTrampoline;
	80	MacroAssemblerCodePtr ctiVirtualCallLink;
	81	MacroAssemblerCodePtr ctiVirtualCall;
	82	RefPtr<NativeExecutable> ctiNativeCallThunk;
	83	MacroAssemblerCodePtr ctiSoftModulo;
	84	};
ba379fdc	85
f9bf01c6	86	#if CPU(X86_64)
ba379fdc A	87	struct JITStackFrame {
	88	void* reserved; // Unused
	89	JITStubArg args[6];
	90	void* padding[2]; // Maintain 32-byte stack alignment (possibly overkill).
	91
f9bf01c6 A	92	void* code;
	93	RegisterFile* registerFile;
	94	CallFrame* callFrame;
	95	JSValue* exception;
	96	Profiler** enabledProfilerReference;
	97	JSGlobalData* globalData;
	98
ba379fdc A	99	void* savedRBX;
	100	void* savedR15;
	101	void* savedR14;
	102	void* savedR13;
	103	void* savedR12;
	104	void* savedRBP;
	105	void* savedRIP;
	106
ba379fdc A	107	// When JIT code makes a call, it pushes its return address just below the rest of the stack.
	108	ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; }
	109	};
f9bf01c6	110	#elif CPU(X86)
4e4e5a6f	111	#if COMPILER(MSVC) \|\| (OS(WINDOWS) && COMPILER(GCC))
ba379fdc A	112	#pragma pack(push)
ba379fdc A	113	#pragma pack(4)
4e4e5a6f	114	#endif // COMPILER(MSVC) \|\| (OS(WINDOWS) && COMPILER(GCC))
ba379fdc A	115	struct JITStackFrame {
	116	void* reserved; // Unused
	117	JITStubArg args[6];
	118	#if USE(JSVALUE32_64)
	119	void* padding[2]; // Maintain 16-byte stack alignment.
	120	#endif
	121
	122	void* savedEBX;
	123	void* savedEDI;
	124	void* savedESI;
	125	void* savedEBP;
	126	void* savedEIP;
	127
	128	void* code;
	129	RegisterFile* registerFile;
	130	CallFrame* callFrame;
	131	JSValue* exception;
	132	Profiler** enabledProfilerReference;
	133	JSGlobalData* globalData;
	134
	135	// When JIT code makes a call, it pushes its return address just below the rest of the stack.
	136	ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; }
	137	};
4e4e5a6f	138	#if COMPILER(MSVC) \|\| (OS(WINDOWS) && COMPILER(GCC))
ba379fdc	139	#pragma pack(pop)
4e4e5a6f	140	#endif // COMPILER(MSVC) \|\| (OS(WINDOWS) && COMPILER(GCC))
f9bf01c6	141	#elif CPU(ARM_THUMB2)
ba379fdc A	142	struct JITStackFrame {
	143	void* reserved; // Unused
	144	JITStubArg args[6];
	145	#if USE(JSVALUE32_64)
	146	void* padding[2]; // Maintain 16-byte stack alignment.
	147	#endif
	148
	149	ReturnAddressPtr thunkReturnAddress;
	150
	151	void* preservedReturnAddress;
	152	void* preservedR4;
	153	void* preservedR5;
	154	void* preservedR6;
	155
	156	// These arguments passed in r1..r3 (r0 contained the entry code pointed, which is not preserved)
	157	RegisterFile* registerFile;
	158	CallFrame* callFrame;
	159	JSValue* exception;
	160
f9bf01c6 A	161	void* padding2;
f9bf01c6 A	162
ba379fdc A	163	// These arguments passed on the stack.
	164	Profiler** enabledProfilerReference;
	165	JSGlobalData* globalData;
	166
f9bf01c6 A	167	ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
	168	};
	169	#elif CPU(ARM_TRADITIONAL)
	170	struct JITStackFrame {
	171	JITStubArg padding; // Unused
	172	JITStubArg args[7];
	173
	174	ReturnAddressPtr thunkReturnAddress;
	175
	176	void* preservedR4;
	177	void* preservedR5;
	178	void* preservedR6;
	179	void* preservedR7;
	180	void* preservedR8;
	181	void* preservedLink;
	182
	183	RegisterFile* registerFile;
	184	CallFrame* callFrame;
	185	JSValue* exception;
	186
	187	// These arguments passed on the stack.
	188	Profiler** enabledProfilerReference;
	189	JSGlobalData* globalData;
	190
	191	// When JIT code makes a call, it pushes its return address just below the rest of the stack.
4e4e5a6f A	192	ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
	193	};
	194	#elif CPU(MIPS)
	195	struct JITStackFrame {
	196	void* reserved; // Unused
	197	JITStubArg args[6];
	198
	199	void* preservedGP; // store GP when using PIC code
	200	void* preservedS0;
	201	void* preservedS1;
	202	void* preservedS2;
	203	void* preservedReturnAddress;
	204
	205	ReturnAddressPtr thunkReturnAddress;
	206
	207	// These arguments passed in a1..a3 (a0 contained the entry code pointed, which is not preserved)
	208	RegisterFile* registerFile;
	209	CallFrame* callFrame;
	210	JSValue* exception;
	211
	212	// These arguments passed on the stack.
	213	Profiler** enabledProfilerReference;
	214	JSGlobalData* globalData;
	215
ba379fdc A	216	ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
	217	};
	218	#else
	219	#error "JITStackFrame not defined for this platform."
	220	#endif
	221
f9bf01c6 A	222	#define JITSTACKFRAME_ARGS_INDEX (OBJECT_OFFSETOF(JITStackFrame, args) / sizeof(void*))
f9bf01c6 A	223
ba379fdc A	224	#if USE(JIT_STUB_ARGUMENT_VA_LIST)
	225	#define STUB_ARGS_DECLARATION void* args, ...
	226	#define STUB_ARGS (reinterpret_cast<void**>(vl_args) - 1)
	227
	228	#if COMPILER(MSVC)
	229	#define JIT_STUB __cdecl
	230	#else
	231	#define JIT_STUB
	232	#endif
	233	#else
	234	#define STUB_ARGS_DECLARATION void** args
	235	#define STUB_ARGS (args)
	236
f9bf01c6	237	#if CPU(X86) && COMPILER(MSVC)
ba379fdc	238	#define JIT_STUB __fastcall
f9bf01c6	239	#elif CPU(X86) && COMPILER(GCC)
ba379fdc A	240	#define JIT_STUB __attribute__ ((fastcall))
	241	#else
	242	#define JIT_STUB
	243	#endif
	244	#endif
	245
f9bf01c6	246	#if CPU(X86_64)
ba379fdc A	247	struct VoidPtrPair {
	248	void* first;
	249	void* second;
	250	};
	251	#define RETURN_POINTER_PAIR(a,b) VoidPtrPair pair = { a, b }; return pair
	252	#else
	253	// MSVC doesn't support returning a two-value struct in two registers, so
	254	// we cast the struct to int64_t instead.
	255	typedef uint64_t VoidPtrPair;
	256	union VoidPtrPairUnion {
	257	struct { void* first; void* second; } s;
	258	VoidPtrPair i;
	259	};
	260	#define RETURN_POINTER_PAIR(a,b) VoidPtrPairUnion pair = {{ a, b }}; return pair.i
	261	#endif
	262
	263	extern "C" void ctiVMThrowTrampoline();
	264	extern "C" void ctiOpThrowNotCaught();
f9bf01c6	265	extern "C" EncodedJSValue ctiTrampoline(void* code, RegisterFile, CallFrame, JSValue* exception, Profiler*, JSGlobalData);
ba379fdc A	266
	267	class JITThunks {
	268	public:
	269	JITThunks(JSGlobalData*);
4e4e5a6f	270	~JITThunks();
ba379fdc	271
f9bf01c6	272	static void tryCacheGetByID(CallFrame, CodeBlock, ReturnAddressPtr returnAddress, JSValue baseValue, const Identifier& propertyName, const PropertySlot&, StructureStubInfo* stubInfo);
4e4e5a6f	273	static void tryCachePutByID(CallFrame, CodeBlock, ReturnAddressPtr returnAddress, JSValue baseValue, const PutPropertySlot&, StructureStubInfo* stubInfo, bool direct);
f9bf01c6	274
4e4e5a6f A	275	MacroAssemblerCodePtr ctiStringLengthTrampoline() { return m_trampolineStructure.ctiStringLengthTrampoline; }
	276	MacroAssemblerCodePtr ctiVirtualCallLink() { return m_trampolineStructure.ctiVirtualCallLink; }
	277	MacroAssemblerCodePtr ctiVirtualCall() { return m_trampolineStructure.ctiVirtualCall; }
	278	NativeExecutable* ctiNativeCallThunk() { return m_trampolineStructure.ctiNativeCallThunk.get(); }
	279	MacroAssemblerCodePtr ctiSoftModulo() { return m_trampolineStructure.ctiSoftModulo; }
ba379fdc	280
4e4e5a6f	281	NativeExecutable* specializedThunk(JSGlobalData* globalData, ThunkGenerator generator);
ba379fdc	282	private:
4e4e5a6f A	283	typedef HashMap<ThunkGenerator, RefPtr<NativeExecutable> > ThunkMap;
4e4e5a6f A	284	ThunkMap m_thunkMap;
ba379fdc A	285	RefPtr<ExecutablePool> m_executablePool;
ba379fdc A	286
4e4e5a6f	287	TrampolineStructure m_trampolineStructure;
ba379fdc A	288	};
	289
	290	extern "C" {
	291	EncodedJSValue JIT_STUB cti_op_add(STUB_ARGS_DECLARATION);
	292	EncodedJSValue JIT_STUB cti_op_bitand(STUB_ARGS_DECLARATION);
	293	EncodedJSValue JIT_STUB cti_op_bitnot(STUB_ARGS_DECLARATION);
	294	EncodedJSValue JIT_STUB cti_op_bitor(STUB_ARGS_DECLARATION);
	295	EncodedJSValue JIT_STUB cti_op_bitxor(STUB_ARGS_DECLARATION);
	296	EncodedJSValue JIT_STUB cti_op_call_NotJSFunction(STUB_ARGS_DECLARATION);
	297	EncodedJSValue JIT_STUB cti_op_call_eval(STUB_ARGS_DECLARATION);
	298	EncodedJSValue JIT_STUB cti_op_construct_NotJSConstruct(STUB_ARGS_DECLARATION);
	299	EncodedJSValue JIT_STUB cti_op_convert_this(STUB_ARGS_DECLARATION);
	300	EncodedJSValue JIT_STUB cti_op_del_by_id(STUB_ARGS_DECLARATION);
	301	EncodedJSValue JIT_STUB cti_op_del_by_val(STUB_ARGS_DECLARATION);
	302	EncodedJSValue JIT_STUB cti_op_div(STUB_ARGS_DECLARATION);
	303	EncodedJSValue JIT_STUB cti_op_get_by_id(STUB_ARGS_DECLARATION);
	304	EncodedJSValue JIT_STUB cti_op_get_by_id_array_fail(STUB_ARGS_DECLARATION);
	305	EncodedJSValue JIT_STUB cti_op_get_by_id_generic(STUB_ARGS_DECLARATION);
	306	EncodedJSValue JIT_STUB cti_op_get_by_id_method_check(STUB_ARGS_DECLARATION);
4e4e5a6f A	307	EncodedJSValue JIT_STUB cti_op_get_by_id_getter_stub(STUB_ARGS_DECLARATION);
4e4e5a6f A	308	EncodedJSValue JIT_STUB cti_op_get_by_id_custom_stub(STUB_ARGS_DECLARATION);
ba379fdc A	309	EncodedJSValue JIT_STUB cti_op_get_by_id_proto_fail(STUB_ARGS_DECLARATION);
	310	EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list(STUB_ARGS_DECLARATION);
	311	EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list_full(STUB_ARGS_DECLARATION);
ba379fdc A	312	EncodedJSValue JIT_STUB cti_op_get_by_id_self_fail(STUB_ARGS_DECLARATION);
	313	EncodedJSValue JIT_STUB cti_op_get_by_id_string_fail(STUB_ARGS_DECLARATION);
	314	EncodedJSValue JIT_STUB cti_op_get_by_val(STUB_ARGS_DECLARATION);
	315	EncodedJSValue JIT_STUB cti_op_get_by_val_byte_array(STUB_ARGS_DECLARATION);
	316	EncodedJSValue JIT_STUB cti_op_get_by_val_string(STUB_ARGS_DECLARATION);
	317	EncodedJSValue JIT_STUB cti_op_in(STUB_ARGS_DECLARATION);
	318	EncodedJSValue JIT_STUB cti_op_instanceof(STUB_ARGS_DECLARATION);
	319	EncodedJSValue JIT_STUB cti_op_is_boolean(STUB_ARGS_DECLARATION);
	320	EncodedJSValue JIT_STUB cti_op_is_function(STUB_ARGS_DECLARATION);
	321	EncodedJSValue JIT_STUB cti_op_is_number(STUB_ARGS_DECLARATION);
	322	EncodedJSValue JIT_STUB cti_op_is_object(STUB_ARGS_DECLARATION);
	323	EncodedJSValue JIT_STUB cti_op_is_string(STUB_ARGS_DECLARATION);
	324	EncodedJSValue JIT_STUB cti_op_is_undefined(STUB_ARGS_DECLARATION);
	325	EncodedJSValue JIT_STUB cti_op_less(STUB_ARGS_DECLARATION);
	326	EncodedJSValue JIT_STUB cti_op_lesseq(STUB_ARGS_DECLARATION);
	327	EncodedJSValue JIT_STUB cti_op_lshift(STUB_ARGS_DECLARATION);
	328	EncodedJSValue JIT_STUB cti_op_mod(STUB_ARGS_DECLARATION);
	329	EncodedJSValue JIT_STUB cti_op_mul(STUB_ARGS_DECLARATION);
	330	EncodedJSValue JIT_STUB cti_op_negate(STUB_ARGS_DECLARATION);
ba379fdc A	331	EncodedJSValue JIT_STUB cti_op_not(STUB_ARGS_DECLARATION);
	332	EncodedJSValue JIT_STUB cti_op_nstricteq(STUB_ARGS_DECLARATION);
	333	EncodedJSValue JIT_STUB cti_op_post_dec(STUB_ARGS_DECLARATION);
	334	EncodedJSValue JIT_STUB cti_op_post_inc(STUB_ARGS_DECLARATION);
	335	EncodedJSValue JIT_STUB cti_op_pre_dec(STUB_ARGS_DECLARATION);
	336	EncodedJSValue JIT_STUB cti_op_pre_inc(STUB_ARGS_DECLARATION);
	337	EncodedJSValue JIT_STUB cti_op_resolve(STUB_ARGS_DECLARATION);
	338	EncodedJSValue JIT_STUB cti_op_resolve_base(STUB_ARGS_DECLARATION);
	339	EncodedJSValue JIT_STUB cti_op_resolve_global(STUB_ARGS_DECLARATION);
4e4e5a6f	340	EncodedJSValue JIT_STUB cti_op_resolve_global_dynamic(STUB_ARGS_DECLARATION);
ba379fdc A	341	EncodedJSValue JIT_STUB cti_op_resolve_skip(STUB_ARGS_DECLARATION);
	342	EncodedJSValue JIT_STUB cti_op_resolve_with_base(STUB_ARGS_DECLARATION);
	343	EncodedJSValue JIT_STUB cti_op_rshift(STUB_ARGS_DECLARATION);
	344	EncodedJSValue JIT_STUB cti_op_strcat(STUB_ARGS_DECLARATION);
	345	EncodedJSValue JIT_STUB cti_op_stricteq(STUB_ARGS_DECLARATION);
	346	EncodedJSValue JIT_STUB cti_op_sub(STUB_ARGS_DECLARATION);
	347	EncodedJSValue JIT_STUB cti_op_throw(STUB_ARGS_DECLARATION);
	348	EncodedJSValue JIT_STUB cti_op_to_jsnumber(STUB_ARGS_DECLARATION);
	349	EncodedJSValue JIT_STUB cti_op_to_primitive(STUB_ARGS_DECLARATION);
	350	EncodedJSValue JIT_STUB cti_op_typeof(STUB_ARGS_DECLARATION);
	351	EncodedJSValue JIT_STUB cti_op_urshift(STUB_ARGS_DECLARATION);
	352	EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION);
f9bf01c6	353	EncodedJSValue JIT_STUB cti_to_object(STUB_ARGS_DECLARATION);
ba379fdc A	354	JSObject* JIT_STUB cti_op_construct_JSConstruct(STUB_ARGS_DECLARATION);
	355	JSObject* JIT_STUB cti_op_new_array(STUB_ARGS_DECLARATION);
	356	JSObject* JIT_STUB cti_op_new_error(STUB_ARGS_DECLARATION);
	357	JSObject* JIT_STUB cti_op_new_func(STUB_ARGS_DECLARATION);
	358	JSObject* JIT_STUB cti_op_new_func_exp(STUB_ARGS_DECLARATION);
	359	JSObject* JIT_STUB cti_op_new_object(STUB_ARGS_DECLARATION);
	360	JSObject* JIT_STUB cti_op_new_regexp(STUB_ARGS_DECLARATION);
	361	JSObject* JIT_STUB cti_op_push_activation(STUB_ARGS_DECLARATION);
	362	JSObject* JIT_STUB cti_op_push_new_scope(STUB_ARGS_DECLARATION);
	363	JSObject* JIT_STUB cti_op_push_scope(STUB_ARGS_DECLARATION);
	364	JSObject* JIT_STUB cti_op_put_by_id_transition_realloc(STUB_ARGS_DECLARATION);
	365	JSPropertyNameIterator* JIT_STUB cti_op_get_pnames(STUB_ARGS_DECLARATION);
	366	VoidPtrPair JIT_STUB cti_op_call_arityCheck(STUB_ARGS_DECLARATION);
	367	int JIT_STUB cti_op_eq(STUB_ARGS_DECLARATION);
ba379fdc	368	int JIT_STUB cti_op_eq_strings(STUB_ARGS_DECLARATION);
ba379fdc A	369	int JIT_STUB cti_op_jless(STUB_ARGS_DECLARATION);
	370	int JIT_STUB cti_op_jlesseq(STUB_ARGS_DECLARATION);
	371	int JIT_STUB cti_op_jtrue(STUB_ARGS_DECLARATION);
	372	int JIT_STUB cti_op_load_varargs(STUB_ARGS_DECLARATION);
ba379fdc	373	int JIT_STUB cti_op_loop_if_lesseq(STUB_ARGS_DECLARATION);
ba379fdc	374	int JIT_STUB cti_timeout_check(STUB_ARGS_DECLARATION);
f9bf01c6	375	int JIT_STUB cti_has_property(STUB_ARGS_DECLARATION);
ba379fdc A	376	void JIT_STUB cti_op_create_arguments(STUB_ARGS_DECLARATION);
	377	void JIT_STUB cti_op_create_arguments_no_params(STUB_ARGS_DECLARATION);
	378	void JIT_STUB cti_op_debug(STUB_ARGS_DECLARATION);
	379	void JIT_STUB cti_op_end(STUB_ARGS_DECLARATION);
	380	void JIT_STUB cti_op_jmp_scopes(STUB_ARGS_DECLARATION);
	381	void JIT_STUB cti_op_pop_scope(STUB_ARGS_DECLARATION);
	382	void JIT_STUB cti_op_profile_did_call(STUB_ARGS_DECLARATION);
	383	void JIT_STUB cti_op_profile_will_call(STUB_ARGS_DECLARATION);
	384	void JIT_STUB cti_op_put_by_id(STUB_ARGS_DECLARATION);
	385	void JIT_STUB cti_op_put_by_id_fail(STUB_ARGS_DECLARATION);
	386	void JIT_STUB cti_op_put_by_id_generic(STUB_ARGS_DECLARATION);
4e4e5a6f A	387	void JIT_STUB cti_op_put_by_id_direct(STUB_ARGS_DECLARATION);
	388	void JIT_STUB cti_op_put_by_id_direct_fail(STUB_ARGS_DECLARATION);
	389	void JIT_STUB cti_op_put_by_id_direct_generic(STUB_ARGS_DECLARATION);
ba379fdc A	390	void JIT_STUB cti_op_put_by_index(STUB_ARGS_DECLARATION);
ba379fdc A	391	void JIT_STUB cti_op_put_by_val(STUB_ARGS_DECLARATION);
ba379fdc A	392	void JIT_STUB cti_op_put_by_val_byte_array(STUB_ARGS_DECLARATION);
	393	void JIT_STUB cti_op_put_getter(STUB_ARGS_DECLARATION);
	394	void JIT_STUB cti_op_put_setter(STUB_ARGS_DECLARATION);
	395	void JIT_STUB cti_op_ret_scopeChain(STUB_ARGS_DECLARATION);
	396	void JIT_STUB cti_op_tear_off_activation(STUB_ARGS_DECLARATION);
	397	void JIT_STUB cti_op_tear_off_arguments(STUB_ARGS_DECLARATION);
	398	void JIT_STUB cti_register_file_check(STUB_ARGS_DECLARATION);
	399	void* JIT_STUB cti_op_call_JSFunction(STUB_ARGS_DECLARATION);
	400	void* JIT_STUB cti_op_switch_char(STUB_ARGS_DECLARATION);
	401	void* JIT_STUB cti_op_switch_imm(STUB_ARGS_DECLARATION);
	402	void* JIT_STUB cti_op_switch_string(STUB_ARGS_DECLARATION);
ba379fdc A	403	void* JIT_STUB cti_vm_lazyLinkCall(STUB_ARGS_DECLARATION);
	404	} // extern "C"
	405
	406	} // namespace JSC
	407
	408	#endif // ENABLE(JIT)
	409
	410	#endif // JITStubs_h