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/*
* Copyright (C) 2008 Apple Inc. All rights reserved.
* Copyright (C) Research In Motion Limited 2010. 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 "CallData.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 ctiVirtualConstructLink;
MacroAssemblerCodePtr ctiVirtualCall;
MacroAssemblerCodePtr ctiVirtualConstruct;
MacroAssemblerCodePtr ctiNativeCall;
MacroAssemblerCodePtr ctiNativeConstruct;
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;
void* unused1;
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;
void* unused1;
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 {
JITStubArg reserved; // Unused
JITStubArg args[6];
#if USE(JSVALUE64)
void* padding; // 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;
void* unused1;
// These arguments passed on the stack.
Profiler** enabledProfilerReference;
JSGlobalData* globalData;
ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
};
#elif CPU(ARM_TRADITIONAL)
#if COMPILER(MSVC)
#pragma pack(push)
#pragma pack(4)
#endif // COMPILER(MSVC)
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;
void* unused1;
// 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; }
};
#if COMPILER(MSVC)
#pragma pack(pop)
#endif // COMPILER(MSVC)
#elif CPU(MIPS)
struct JITStackFrame {
JITStubArg reserved; // Unused
JITStubArg args[6];
#if USE(JSVALUE32_64)
void* padding; // Make the overall stack length 8-byte aligned.
#endif
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;
void* unused1;
// These arguments passed on the stack.
Profiler** enabledProfilerReference;
JSGlobalData* globalData;
ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; }
};
#elif CPU(SH4)
struct JITStackFrame {
JITStubArg padding; // Unused
JITStubArg args[6];
ReturnAddressPtr thunkReturnAddress;
void* savedR10;
void* savedR11;
void* savedR13;
void* savedRPR;
void* savedR14;
void* savedTimeoutReg;
RegisterFile* registerFile;
CallFrame* callFrame;
JSValue* exception;
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*))
#define STUB_ARGS_DECLARATION void** args
#define STUB_ARGS (args)
#if CPU(X86)
#if COMPILER(MSVC)
#define JIT_STUB __fastcall
#elif COMPILER(GCC)
#define JIT_STUB __attribute__ ((fastcall))
#else
#error "JIT_STUB function calls require fastcall conventions on x86, add appropriate directive/attribute here for your compiler!"
#endif
#else
#define JIT_STUB
#endif
extern "C" void ctiVMThrowTrampoline();
extern "C" void ctiOpThrowNotCaught();
extern "C" EncodedJSValue ctiTrampoline(void* code, RegisterFile*, CallFrame*, void* /*unused1*/, Profiler**, JSGlobalData*);
template <typename T> class Strong;
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 ctiVirtualConstructLink() { return m_trampolineStructure.ctiVirtualConstructLink; }
MacroAssemblerCodePtr ctiVirtualCall() { return m_trampolineStructure.ctiVirtualCall; }
MacroAssemblerCodePtr ctiVirtualConstruct() { return m_trampolineStructure.ctiVirtualConstruct; }
MacroAssemblerCodePtr ctiNativeCall() { return m_trampolineStructure.ctiNativeCall; }
MacroAssemblerCodePtr ctiNativeConstruct() { return m_trampolineStructure.ctiNativeConstruct; }
MacroAssemblerCodePtr ctiSoftModulo() { return m_trampolineStructure.ctiSoftModulo; }
MacroAssemblerCodePtr ctiStub(JSGlobalData* globalData, ThunkGenerator generator);
NativeExecutable* hostFunctionStub(JSGlobalData*, NativeFunction);
NativeExecutable* hostFunctionStub(JSGlobalData*, NativeFunction, ThunkGenerator);
void clearHostFunctionStubs();
private:
typedef HashMap<ThunkGenerator, MacroAssemblerCodePtr> CTIStubMap;
CTIStubMap m_ctiStubMap;
typedef HashMap<NativeFunction, Strong<NativeExecutable> > HostFunctionStubMap;
OwnPtr<HostFunctionStubMap> m_hostFunctionStubMap;
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_create_this(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_convert_this(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_convert_this_strict(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_create_arguments(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_create_arguments_no_params(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_custom_stub(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_get_by_id_generic(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_get_by_id_getter_stub(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_get_by_id_method_check(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_base_strict_put(STUB_ARGS_DECLARATION);
EncodedJSValue JIT_STUB cti_op_ensure_property_exists(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_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_to_object(STUB_ARGS_DECLARATION);
JSObject* JIT_STUB cti_op_new_array(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);
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_check_has_instance(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_tear_off_activation(STUB_ARGS_DECLARATION);
void JIT_STUB cti_op_tear_off_arguments(STUB_ARGS_DECLARATION);
void JIT_STUB cti_op_throw_reference_error(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_op_call_arityCheck(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_op_construct_arityCheck(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_op_call_jitCompile(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_op_construct_jitCompile(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_op_throw(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_register_file_check(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_vm_lazyLinkCall(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_vm_lazyLinkConstruct(STUB_ARGS_DECLARATION);
void* JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION);
} // extern "C"
} // namespace JSC
#endif // ENABLE(JIT)
#endif // JITStubs_h