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 32 #include <wtf/Platform.h> 33 34 #include "MacroAssemblerCodeRef.h" 35 #include "Register.h" 36 37 #if ENABLE(JIT) 38 39 namespace JSC { 40 41 struct StructureStubInfo; 42 43 class CodeBlock; 44 class ExecutablePool; 45 class Identifier; 46 class JSGlobalData; 47 class JSGlobalData; 48 class JSObject; 49 class JSPropertyNameIterator; 50 class JSValue; 51 class JSValueEncodedAsPointer; 52 class Profiler; 53 class PropertySlot; 54 class PutPropertySlot; 55 class RegisterFile; 56 class FuncDeclNode; 57 class FuncExprNode; 58 class JSGlobalObject; 59 class RegExp; 60 61 union JITStubArg { 62 void* asPointer; 63 EncodedJSValue asEncodedJSValue; 64 int32_t asInt32; 65 jsValue()66 JSValue jsValue() { return JSValue::decode(asEncodedJSValue); } identifier()67 Identifier& identifier() { return *static_cast<Identifier*>(asPointer); } int32()68 int32_t int32() { return asInt32; } codeBlock()69 CodeBlock* codeBlock() { return static_cast<CodeBlock*>(asPointer); } funcDeclNode()70 FuncDeclNode* funcDeclNode() { return static_cast<FuncDeclNode*>(asPointer); } funcExprNode()71 FuncExprNode* funcExprNode() { return static_cast<FuncExprNode*>(asPointer); } regExp()72 RegExp* regExp() { return static_cast<RegExp*>(asPointer); } propertyNameIterator()73 JSPropertyNameIterator* propertyNameIterator() { return static_cast<JSPropertyNameIterator*>(asPointer); } globalObject()74 JSGlobalObject* globalObject() { return static_cast<JSGlobalObject*>(asPointer); } jsString()75 JSString* jsString() { return static_cast<JSString*>(asPointer); } returnAddress()76 ReturnAddressPtr returnAddress() { return ReturnAddressPtr(asPointer); } 77 }; 78 79 #if PLATFORM(X86_64) 80 struct JITStackFrame { 81 void* reserved; // Unused 82 JITStubArg args[6]; 83 void* padding[2]; // Maintain 32-byte stack alignment (possibly overkill). 84 85 void* code; 86 RegisterFile* registerFile; 87 CallFrame* callFrame; 88 JSValue* exception; 89 Profiler** enabledProfilerReference; 90 JSGlobalData* globalData; 91 92 void* savedRBX; 93 void* savedR15; 94 void* savedR14; 95 void* savedR13; 96 void* savedR12; 97 void* savedRBP; 98 void* savedRIP; 99 100 // When JIT code makes a call, it pushes its return address just below the rest of the stack. returnAddressSlotJITStackFrame101 ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; } 102 }; 103 #elif PLATFORM(X86) 104 #if COMPILER(MSVC) 105 #pragma pack(push) 106 #pragma pack(4) 107 #endif // COMPILER(MSVC) 108 struct JITStackFrame { 109 void* reserved; // Unused 110 JITStubArg args[6]; 111 #if USE(JSVALUE32_64) 112 void* padding[2]; // Maintain 16-byte stack alignment. 113 #endif 114 115 void* savedEBX; 116 void* savedEDI; 117 void* savedESI; 118 void* savedEBP; 119 void* savedEIP; 120 121 void* code; 122 RegisterFile* registerFile; 123 CallFrame* callFrame; 124 JSValue* exception; 125 Profiler** enabledProfilerReference; 126 JSGlobalData* globalData; 127 128 // When JIT code makes a call, it pushes its return address just below the rest of the stack. returnAddressSlotJITStackFrame129 ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; } 130 }; 131 #if COMPILER(MSVC) 132 #pragma pack(pop) 133 #endif // COMPILER(MSVC) 134 #elif PLATFORM_ARM_ARCH(7) 135 struct JITStackFrame { 136 void* reserved; // Unused 137 JITStubArg args[6]; 138 #if USE(JSVALUE32_64) 139 void* padding[2]; // Maintain 16-byte stack alignment. 140 #endif 141 142 ReturnAddressPtr thunkReturnAddress; 143 144 void* preservedReturnAddress; 145 void* preservedR4; 146 void* preservedR5; 147 void* preservedR6; 148 149 // These arguments passed in r1..r3 (r0 contained the entry code pointed, which is not preserved) 150 RegisterFile* registerFile; 151 CallFrame* callFrame; 152 JSValue* exception; 153 154 // These arguments passed on the stack. 155 Profiler** enabledProfilerReference; 156 JSGlobalData* globalData; 157 returnAddressSlotJITStackFrame158 ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; } 159 }; 160 #elif PLATFORM(ARM) 161 struct JITStackFrame { 162 JITStubArg padding; // Unused 163 JITStubArg args[7]; 164 165 void* preservedR4; 166 void* preservedR5; 167 void* preservedR6; 168 void* preservedR7; 169 void* preservedR8; 170 void* preservedLink; 171 172 RegisterFile* registerFile; 173 CallFrame* callFrame; 174 JSValue* exception; 175 Profiler** enabledProfilerReference; 176 JSGlobalData* globalData; 177 178 // When JIT code makes a call, it pushes its return address just below the rest of the stack. returnAddressSlotJITStackFrame179 ReturnAddressPtr* returnAddressSlot() { return reinterpret_cast<ReturnAddressPtr*>(this) - 1; } 180 }; 181 #else 182 #error "JITStackFrame not defined for this platform." 183 #endif 184 185 #if USE(JIT_STUB_ARGUMENT_VA_LIST) 186 #define STUB_ARGS_DECLARATION void* args, ... 187 #define STUB_ARGS (reinterpret_cast<void**>(vl_args) - 1) 188 189 #if COMPILER(MSVC) 190 #define JIT_STUB __cdecl 191 #else 192 #define JIT_STUB 193 #endif 194 #else 195 #define STUB_ARGS_DECLARATION void** args 196 #define STUB_ARGS (args) 197 198 #if PLATFORM(X86) && COMPILER(MSVC) 199 #define JIT_STUB __fastcall 200 #elif PLATFORM(X86) && COMPILER(GCC) 201 #define JIT_STUB __attribute__ ((fastcall)) 202 #else 203 #define JIT_STUB 204 #endif 205 #endif 206 207 #if PLATFORM(X86_64) 208 struct VoidPtrPair { 209 void* first; 210 void* second; 211 }; 212 #define RETURN_POINTER_PAIR(a,b) VoidPtrPair pair = { a, b }; return pair 213 #else 214 // MSVC doesn't support returning a two-value struct in two registers, so 215 // we cast the struct to int64_t instead. 216 typedef uint64_t VoidPtrPair; 217 union VoidPtrPairUnion { 218 struct { void* first; void* second; } s; 219 VoidPtrPair i; 220 }; 221 #define RETURN_POINTER_PAIR(a,b) VoidPtrPairUnion pair = {{ a, b }}; return pair.i 222 #endif 223 224 extern "C" void ctiVMThrowTrampoline(); 225 extern "C" void ctiOpThrowNotCaught(); 226 extern "C" EncodedJSValue ctiTrampoline(void* code, RegisterFile*, CallFrame*, JSValue* exception, Profiler**, JSGlobalData*); 227 228 class JITThunks { 229 public: 230 JITThunks(JSGlobalData*); 231 232 static void tryCacheGetByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const Identifier& propertyName, const PropertySlot&, StructureStubInfo* stubInfo); 233 static void tryCachePutByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const PutPropertySlot&, StructureStubInfo* stubInfo); 234 ctiStringLengthTrampoline()235 MacroAssemblerCodePtr ctiStringLengthTrampoline() { return m_ctiStringLengthTrampoline; } ctiVirtualCallLink()236 MacroAssemblerCodePtr ctiVirtualCallLink() { return m_ctiVirtualCallLink; } ctiVirtualCall()237 MacroAssemblerCodePtr ctiVirtualCall() { return m_ctiVirtualCall; } ctiNativeCallThunk()238 MacroAssemblerCodePtr ctiNativeCallThunk() { return m_ctiNativeCallThunk; } 239 240 private: 241 RefPtr<ExecutablePool> m_executablePool; 242 243 MacroAssemblerCodePtr m_ctiStringLengthTrampoline; 244 MacroAssemblerCodePtr m_ctiVirtualCallLink; 245 MacroAssemblerCodePtr m_ctiVirtualCall; 246 MacroAssemblerCodePtr m_ctiNativeCallThunk; 247 }; 248 249 extern "C" { 250 EncodedJSValue JIT_STUB cti_op_add(STUB_ARGS_DECLARATION); 251 EncodedJSValue JIT_STUB cti_op_bitand(STUB_ARGS_DECLARATION); 252 EncodedJSValue JIT_STUB cti_op_bitnot(STUB_ARGS_DECLARATION); 253 EncodedJSValue JIT_STUB cti_op_bitor(STUB_ARGS_DECLARATION); 254 EncodedJSValue JIT_STUB cti_op_bitxor(STUB_ARGS_DECLARATION); 255 EncodedJSValue JIT_STUB cti_op_call_NotJSFunction(STUB_ARGS_DECLARATION); 256 EncodedJSValue JIT_STUB cti_op_call_eval(STUB_ARGS_DECLARATION); 257 EncodedJSValue JIT_STUB cti_op_construct_NotJSConstruct(STUB_ARGS_DECLARATION); 258 EncodedJSValue JIT_STUB cti_op_convert_this(STUB_ARGS_DECLARATION); 259 EncodedJSValue JIT_STUB cti_op_del_by_id(STUB_ARGS_DECLARATION); 260 EncodedJSValue JIT_STUB cti_op_del_by_val(STUB_ARGS_DECLARATION); 261 EncodedJSValue JIT_STUB cti_op_div(STUB_ARGS_DECLARATION); 262 EncodedJSValue JIT_STUB cti_op_get_by_id(STUB_ARGS_DECLARATION); 263 EncodedJSValue JIT_STUB cti_op_get_by_id_array_fail(STUB_ARGS_DECLARATION); 264 EncodedJSValue JIT_STUB cti_op_get_by_id_generic(STUB_ARGS_DECLARATION); 265 EncodedJSValue JIT_STUB cti_op_get_by_id_method_check(STUB_ARGS_DECLARATION); 266 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_fail(STUB_ARGS_DECLARATION); 267 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list(STUB_ARGS_DECLARATION); 268 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list_full(STUB_ARGS_DECLARATION); 269 EncodedJSValue JIT_STUB cti_op_get_by_id_self_fail(STUB_ARGS_DECLARATION); 270 EncodedJSValue JIT_STUB cti_op_get_by_id_string_fail(STUB_ARGS_DECLARATION); 271 EncodedJSValue JIT_STUB cti_op_get_by_val(STUB_ARGS_DECLARATION); 272 EncodedJSValue JIT_STUB cti_op_get_by_val_byte_array(STUB_ARGS_DECLARATION); 273 EncodedJSValue JIT_STUB cti_op_get_by_val_string(STUB_ARGS_DECLARATION); 274 EncodedJSValue JIT_STUB cti_op_in(STUB_ARGS_DECLARATION); 275 EncodedJSValue JIT_STUB cti_op_instanceof(STUB_ARGS_DECLARATION); 276 EncodedJSValue JIT_STUB cti_op_is_boolean(STUB_ARGS_DECLARATION); 277 EncodedJSValue JIT_STUB cti_op_is_function(STUB_ARGS_DECLARATION); 278 EncodedJSValue JIT_STUB cti_op_is_number(STUB_ARGS_DECLARATION); 279 EncodedJSValue JIT_STUB cti_op_is_object(STUB_ARGS_DECLARATION); 280 EncodedJSValue JIT_STUB cti_op_is_string(STUB_ARGS_DECLARATION); 281 EncodedJSValue JIT_STUB cti_op_is_undefined(STUB_ARGS_DECLARATION); 282 EncodedJSValue JIT_STUB cti_op_less(STUB_ARGS_DECLARATION); 283 EncodedJSValue JIT_STUB cti_op_lesseq(STUB_ARGS_DECLARATION); 284 EncodedJSValue JIT_STUB cti_op_lshift(STUB_ARGS_DECLARATION); 285 EncodedJSValue JIT_STUB cti_op_mod(STUB_ARGS_DECLARATION); 286 EncodedJSValue JIT_STUB cti_op_mul(STUB_ARGS_DECLARATION); 287 EncodedJSValue JIT_STUB cti_op_negate(STUB_ARGS_DECLARATION); 288 EncodedJSValue JIT_STUB cti_op_next_pname(STUB_ARGS_DECLARATION); 289 EncodedJSValue JIT_STUB cti_op_not(STUB_ARGS_DECLARATION); 290 EncodedJSValue JIT_STUB cti_op_nstricteq(STUB_ARGS_DECLARATION); 291 EncodedJSValue JIT_STUB cti_op_post_dec(STUB_ARGS_DECLARATION); 292 EncodedJSValue JIT_STUB cti_op_post_inc(STUB_ARGS_DECLARATION); 293 EncodedJSValue JIT_STUB cti_op_pre_dec(STUB_ARGS_DECLARATION); 294 EncodedJSValue JIT_STUB cti_op_pre_inc(STUB_ARGS_DECLARATION); 295 EncodedJSValue JIT_STUB cti_op_resolve(STUB_ARGS_DECLARATION); 296 EncodedJSValue JIT_STUB cti_op_resolve_base(STUB_ARGS_DECLARATION); 297 EncodedJSValue JIT_STUB cti_op_resolve_global(STUB_ARGS_DECLARATION); 298 EncodedJSValue JIT_STUB cti_op_resolve_skip(STUB_ARGS_DECLARATION); 299 EncodedJSValue JIT_STUB cti_op_resolve_with_base(STUB_ARGS_DECLARATION); 300 EncodedJSValue JIT_STUB cti_op_rshift(STUB_ARGS_DECLARATION); 301 EncodedJSValue JIT_STUB cti_op_strcat(STUB_ARGS_DECLARATION); 302 EncodedJSValue JIT_STUB cti_op_stricteq(STUB_ARGS_DECLARATION); 303 EncodedJSValue JIT_STUB cti_op_sub(STUB_ARGS_DECLARATION); 304 EncodedJSValue JIT_STUB cti_op_throw(STUB_ARGS_DECLARATION); 305 EncodedJSValue JIT_STUB cti_op_to_jsnumber(STUB_ARGS_DECLARATION); 306 EncodedJSValue JIT_STUB cti_op_to_primitive(STUB_ARGS_DECLARATION); 307 EncodedJSValue JIT_STUB cti_op_typeof(STUB_ARGS_DECLARATION); 308 EncodedJSValue JIT_STUB cti_op_urshift(STUB_ARGS_DECLARATION); 309 EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION); 310 JSObject* JIT_STUB cti_op_construct_JSConstruct(STUB_ARGS_DECLARATION); 311 JSObject* JIT_STUB cti_op_new_array(STUB_ARGS_DECLARATION); 312 JSObject* JIT_STUB cti_op_new_error(STUB_ARGS_DECLARATION); 313 JSObject* JIT_STUB cti_op_new_func(STUB_ARGS_DECLARATION); 314 JSObject* JIT_STUB cti_op_new_func_exp(STUB_ARGS_DECLARATION); 315 JSObject* JIT_STUB cti_op_new_object(STUB_ARGS_DECLARATION); 316 JSObject* JIT_STUB cti_op_new_regexp(STUB_ARGS_DECLARATION); 317 JSObject* JIT_STUB cti_op_push_activation(STUB_ARGS_DECLARATION); 318 JSObject* JIT_STUB cti_op_push_new_scope(STUB_ARGS_DECLARATION); 319 JSObject* JIT_STUB cti_op_push_scope(STUB_ARGS_DECLARATION); 320 JSObject* JIT_STUB cti_op_put_by_id_transition_realloc(STUB_ARGS_DECLARATION); 321 JSPropertyNameIterator* JIT_STUB cti_op_get_pnames(STUB_ARGS_DECLARATION); 322 VoidPtrPair JIT_STUB cti_op_call_arityCheck(STUB_ARGS_DECLARATION); 323 int JIT_STUB cti_op_eq(STUB_ARGS_DECLARATION); 324 #if USE(JSVALUE32_64) 325 int JIT_STUB cti_op_eq_strings(STUB_ARGS_DECLARATION); 326 #endif 327 int JIT_STUB cti_op_jless(STUB_ARGS_DECLARATION); 328 int JIT_STUB cti_op_jlesseq(STUB_ARGS_DECLARATION); 329 int JIT_STUB cti_op_jtrue(STUB_ARGS_DECLARATION); 330 int JIT_STUB cti_op_load_varargs(STUB_ARGS_DECLARATION); 331 int JIT_STUB cti_op_loop_if_less(STUB_ARGS_DECLARATION); 332 int JIT_STUB cti_op_loop_if_lesseq(STUB_ARGS_DECLARATION); 333 int JIT_STUB cti_op_loop_if_true(STUB_ARGS_DECLARATION); 334 int JIT_STUB cti_timeout_check(STUB_ARGS_DECLARATION); 335 void JIT_STUB cti_op_create_arguments(STUB_ARGS_DECLARATION); 336 void JIT_STUB cti_op_create_arguments_no_params(STUB_ARGS_DECLARATION); 337 void JIT_STUB cti_op_debug(STUB_ARGS_DECLARATION); 338 void JIT_STUB cti_op_end(STUB_ARGS_DECLARATION); 339 void JIT_STUB cti_op_jmp_scopes(STUB_ARGS_DECLARATION); 340 void JIT_STUB cti_op_pop_scope(STUB_ARGS_DECLARATION); 341 void JIT_STUB cti_op_profile_did_call(STUB_ARGS_DECLARATION); 342 void JIT_STUB cti_op_profile_will_call(STUB_ARGS_DECLARATION); 343 void JIT_STUB cti_op_put_by_id(STUB_ARGS_DECLARATION); 344 void JIT_STUB cti_op_put_by_id_fail(STUB_ARGS_DECLARATION); 345 void JIT_STUB cti_op_put_by_id_generic(STUB_ARGS_DECLARATION); 346 void JIT_STUB cti_op_put_by_index(STUB_ARGS_DECLARATION); 347 void JIT_STUB cti_op_put_by_val(STUB_ARGS_DECLARATION); 348 void JIT_STUB cti_op_put_by_val_array(STUB_ARGS_DECLARATION); 349 void JIT_STUB cti_op_put_by_val_byte_array(STUB_ARGS_DECLARATION); 350 void JIT_STUB cti_op_put_getter(STUB_ARGS_DECLARATION); 351 void JIT_STUB cti_op_put_setter(STUB_ARGS_DECLARATION); 352 void JIT_STUB cti_op_ret_scopeChain(STUB_ARGS_DECLARATION); 353 void JIT_STUB cti_op_tear_off_activation(STUB_ARGS_DECLARATION); 354 void JIT_STUB cti_op_tear_off_arguments(STUB_ARGS_DECLARATION); 355 void JIT_STUB cti_register_file_check(STUB_ARGS_DECLARATION); 356 void* JIT_STUB cti_op_call_JSFunction(STUB_ARGS_DECLARATION); 357 void* JIT_STUB cti_op_switch_char(STUB_ARGS_DECLARATION); 358 void* JIT_STUB cti_op_switch_imm(STUB_ARGS_DECLARATION); 359 void* JIT_STUB cti_op_switch_string(STUB_ARGS_DECLARATION); 360 void* JIT_STUB cti_vm_lazyLinkCall(STUB_ARGS_DECLARATION); 361 } // extern "C" 362 363 } // namespace JSC 364 365 #endif // ENABLE(JIT) 366 367 #endif // JITStubs_h 368