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 FunctionExecutable; 46 class Identifier; 47 class JSGlobalData; 48 class JSGlobalData; 49 class JSObject; 50 class JSPropertyNameIterator; 51 class JSValue; 52 class JSValueEncodedAsPointer; 53 class Profiler; 54 class PropertySlot; 55 class PutPropertySlot; 56 class RegisterFile; 57 class JSGlobalObject; 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); } 66 JSObject* jsObject() { return static_cast<JSObject*>(asPointer); } 67 Identifier& identifier() { return *static_cast<Identifier*>(asPointer); } 68 int32_t int32() { return asInt32; } 69 CodeBlock* codeBlock() { return static_cast<CodeBlock*>(asPointer); } 70 FunctionExecutable* function() { return static_cast<FunctionExecutable*>(asPointer); } 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 }; 77 78 struct TrampolineStructure { 79 MacroAssemblerCodePtr ctiStringLengthTrampoline; 80 MacroAssemblerCodePtr ctiVirtualCallLink; 81 MacroAssemblerCodePtr ctiVirtualCall; 82 MacroAssemblerCodePtr ctiNativeCallThunk; 83 MacroAssemblerCodePtr ctiSoftModulo; 84 }; 85 86 #if CPU(X86_64) 87 struct JITStackFrame { 88 void* reserved; // Unused 89 JITStubArg args[6]; 90 void* padding[2]; // Maintain 32-byte stack alignment (possibly overkill). 91 92 void* code; 93 RegisterFile* registerFile; 94 CallFrame* callFrame; 95 JSValue* exception; 96 Profiler** enabledProfilerReference; 97 JSGlobalData* globalData; 98 99 void* savedRBX; 100 void* savedR15; 101 void* savedR14; 102 void* savedR13; 103 void* savedR12; 104 void* savedRBP; 105 void* savedRIP; 106 107 // 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 }; 110 #elif CPU(X86) 111 #if COMPILER(MSVC) 112 #pragma pack(push) 113 #pragma pack(4) 114 #endif // COMPILER(MSVC) 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 }; 138 #if COMPILER(MSVC) 139 #pragma pack(pop) 140 #endif // COMPILER(MSVC) 141 #elif CPU(ARM_THUMB2) 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; 160 161 void* padding2; 162 163 // These arguments passed on the stack. 164 Profiler** enabledProfilerReference; 165 JSGlobalData* globalData; 166 167 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. 192 ReturnAddressPtr* returnAddressSlot() { return &thunkReturnAddress; } 193 }; 194 #else 195 #error "JITStackFrame not defined for this platform." 196 #endif 197 198 #define JITSTACKFRAME_ARGS_INDEX (OBJECT_OFFSETOF(JITStackFrame, args) / sizeof(void*)) 199 200 #if USE(JIT_STUB_ARGUMENT_VA_LIST) 201 #define STUB_ARGS_DECLARATION void* args, ... 202 #define STUB_ARGS (reinterpret_cast<void**>(vl_args) - 1) 203 204 #if COMPILER(MSVC) 205 #define JIT_STUB __cdecl 206 #else 207 #define JIT_STUB 208 #endif 209 #else 210 #define STUB_ARGS_DECLARATION void** args 211 #define STUB_ARGS (args) 212 213 #if CPU(X86) && COMPILER(MSVC) 214 #define JIT_STUB __fastcall 215 #elif CPU(X86) && COMPILER(GCC) 216 #define JIT_STUB __attribute__ ((fastcall)) 217 #else 218 #define JIT_STUB 219 #endif 220 #endif 221 222 #if CPU(X86_64) 223 struct VoidPtrPair { 224 void* first; 225 void* second; 226 }; 227 #define RETURN_POINTER_PAIR(a,b) VoidPtrPair pair = { a, b }; return pair 228 #else 229 // MSVC doesn't support returning a two-value struct in two registers, so 230 // we cast the struct to int64_t instead. 231 typedef uint64_t VoidPtrPair; 232 union VoidPtrPairUnion { 233 struct { void* first; void* second; } s; 234 VoidPtrPair i; 235 }; 236 #define RETURN_POINTER_PAIR(a,b) VoidPtrPairUnion pair = {{ a, b }}; return pair.i 237 #endif 238 239 extern "C" void ctiVMThrowTrampoline(); 240 extern "C" void ctiOpThrowNotCaught(); 241 extern "C" EncodedJSValue ctiTrampoline(void* code, RegisterFile*, CallFrame*, JSValue* exception, Profiler**, JSGlobalData*); 242 243 class JITThunks { 244 public: 245 JITThunks(JSGlobalData*); 246 247 static void tryCacheGetByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const Identifier& propertyName, const PropertySlot&, StructureStubInfo* stubInfo); 248 static void tryCachePutByID(CallFrame*, CodeBlock*, ReturnAddressPtr returnAddress, JSValue baseValue, const PutPropertySlot&, StructureStubInfo* stubInfo); 249 250 MacroAssemblerCodePtr ctiStringLengthTrampoline() { return m_trampolineStructure.ctiStringLengthTrampoline; } 251 MacroAssemblerCodePtr ctiVirtualCallLink() { return m_trampolineStructure.ctiVirtualCallLink; } 252 MacroAssemblerCodePtr ctiVirtualCall() { return m_trampolineStructure.ctiVirtualCall; } 253 MacroAssemblerCodePtr ctiNativeCallThunk() { return m_trampolineStructure.ctiNativeCallThunk; } 254 MacroAssemblerCodePtr ctiSoftModulo() { return m_trampolineStructure.ctiSoftModulo; } 255 256 private: 257 RefPtr<ExecutablePool> m_executablePool; 258 259 TrampolineStructure m_trampolineStructure; 260 }; 261 262 extern "C" { 263 EncodedJSValue JIT_STUB cti_op_add(STUB_ARGS_DECLARATION); 264 EncodedJSValue JIT_STUB cti_op_bitand(STUB_ARGS_DECLARATION); 265 EncodedJSValue JIT_STUB cti_op_bitnot(STUB_ARGS_DECLARATION); 266 EncodedJSValue JIT_STUB cti_op_bitor(STUB_ARGS_DECLARATION); 267 EncodedJSValue JIT_STUB cti_op_bitxor(STUB_ARGS_DECLARATION); 268 EncodedJSValue JIT_STUB cti_op_call_NotJSFunction(STUB_ARGS_DECLARATION); 269 EncodedJSValue JIT_STUB cti_op_call_eval(STUB_ARGS_DECLARATION); 270 EncodedJSValue JIT_STUB cti_op_construct_NotJSConstruct(STUB_ARGS_DECLARATION); 271 EncodedJSValue JIT_STUB cti_op_convert_this(STUB_ARGS_DECLARATION); 272 EncodedJSValue JIT_STUB cti_op_del_by_id(STUB_ARGS_DECLARATION); 273 EncodedJSValue JIT_STUB cti_op_del_by_val(STUB_ARGS_DECLARATION); 274 EncodedJSValue JIT_STUB cti_op_div(STUB_ARGS_DECLARATION); 275 EncodedJSValue JIT_STUB cti_op_get_by_id(STUB_ARGS_DECLARATION); 276 EncodedJSValue JIT_STUB cti_op_get_by_id_array_fail(STUB_ARGS_DECLARATION); 277 EncodedJSValue JIT_STUB cti_op_get_by_id_generic(STUB_ARGS_DECLARATION); 278 EncodedJSValue JIT_STUB cti_op_get_by_id_method_check(STUB_ARGS_DECLARATION); 279 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_fail(STUB_ARGS_DECLARATION); 280 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list(STUB_ARGS_DECLARATION); 281 EncodedJSValue JIT_STUB cti_op_get_by_id_proto_list_full(STUB_ARGS_DECLARATION); 282 EncodedJSValue JIT_STUB cti_op_get_by_id_self_fail(STUB_ARGS_DECLARATION); 283 EncodedJSValue JIT_STUB cti_op_get_by_id_string_fail(STUB_ARGS_DECLARATION); 284 EncodedJSValue JIT_STUB cti_op_get_by_val(STUB_ARGS_DECLARATION); 285 EncodedJSValue JIT_STUB cti_op_get_by_val_byte_array(STUB_ARGS_DECLARATION); 286 EncodedJSValue JIT_STUB cti_op_get_by_val_string(STUB_ARGS_DECLARATION); 287 EncodedJSValue JIT_STUB cti_op_in(STUB_ARGS_DECLARATION); 288 EncodedJSValue JIT_STUB cti_op_instanceof(STUB_ARGS_DECLARATION); 289 EncodedJSValue JIT_STUB cti_op_is_boolean(STUB_ARGS_DECLARATION); 290 EncodedJSValue JIT_STUB cti_op_is_function(STUB_ARGS_DECLARATION); 291 EncodedJSValue JIT_STUB cti_op_is_number(STUB_ARGS_DECLARATION); 292 EncodedJSValue JIT_STUB cti_op_is_object(STUB_ARGS_DECLARATION); 293 EncodedJSValue JIT_STUB cti_op_is_string(STUB_ARGS_DECLARATION); 294 EncodedJSValue JIT_STUB cti_op_is_undefined(STUB_ARGS_DECLARATION); 295 EncodedJSValue JIT_STUB cti_op_less(STUB_ARGS_DECLARATION); 296 EncodedJSValue JIT_STUB cti_op_lesseq(STUB_ARGS_DECLARATION); 297 EncodedJSValue JIT_STUB cti_op_lshift(STUB_ARGS_DECLARATION); 298 EncodedJSValue JIT_STUB cti_op_mod(STUB_ARGS_DECLARATION); 299 EncodedJSValue JIT_STUB cti_op_mul(STUB_ARGS_DECLARATION); 300 EncodedJSValue JIT_STUB cti_op_negate(STUB_ARGS_DECLARATION); 301 EncodedJSValue JIT_STUB cti_op_not(STUB_ARGS_DECLARATION); 302 EncodedJSValue JIT_STUB cti_op_nstricteq(STUB_ARGS_DECLARATION); 303 EncodedJSValue JIT_STUB cti_op_post_dec(STUB_ARGS_DECLARATION); 304 EncodedJSValue JIT_STUB cti_op_post_inc(STUB_ARGS_DECLARATION); 305 EncodedJSValue JIT_STUB cti_op_pre_dec(STUB_ARGS_DECLARATION); 306 EncodedJSValue JIT_STUB cti_op_pre_inc(STUB_ARGS_DECLARATION); 307 EncodedJSValue JIT_STUB cti_op_resolve(STUB_ARGS_DECLARATION); 308 EncodedJSValue JIT_STUB cti_op_resolve_base(STUB_ARGS_DECLARATION); 309 EncodedJSValue JIT_STUB cti_op_resolve_global(STUB_ARGS_DECLARATION); 310 EncodedJSValue JIT_STUB cti_op_resolve_skip(STUB_ARGS_DECLARATION); 311 EncodedJSValue JIT_STUB cti_op_resolve_with_base(STUB_ARGS_DECLARATION); 312 EncodedJSValue JIT_STUB cti_op_rshift(STUB_ARGS_DECLARATION); 313 EncodedJSValue JIT_STUB cti_op_strcat(STUB_ARGS_DECLARATION); 314 EncodedJSValue JIT_STUB cti_op_stricteq(STUB_ARGS_DECLARATION); 315 EncodedJSValue JIT_STUB cti_op_sub(STUB_ARGS_DECLARATION); 316 EncodedJSValue JIT_STUB cti_op_throw(STUB_ARGS_DECLARATION); 317 EncodedJSValue JIT_STUB cti_op_to_jsnumber(STUB_ARGS_DECLARATION); 318 EncodedJSValue JIT_STUB cti_op_to_primitive(STUB_ARGS_DECLARATION); 319 EncodedJSValue JIT_STUB cti_op_typeof(STUB_ARGS_DECLARATION); 320 EncodedJSValue JIT_STUB cti_op_urshift(STUB_ARGS_DECLARATION); 321 EncodedJSValue JIT_STUB cti_vm_throw(STUB_ARGS_DECLARATION); 322 EncodedJSValue JIT_STUB cti_to_object(STUB_ARGS_DECLARATION); 323 JSObject* JIT_STUB cti_op_construct_JSConstruct(STUB_ARGS_DECLARATION); 324 JSObject* JIT_STUB cti_op_new_array(STUB_ARGS_DECLARATION); 325 JSObject* JIT_STUB cti_op_new_error(STUB_ARGS_DECLARATION); 326 JSObject* JIT_STUB cti_op_new_func(STUB_ARGS_DECLARATION); 327 JSObject* JIT_STUB cti_op_new_func_exp(STUB_ARGS_DECLARATION); 328 JSObject* JIT_STUB cti_op_new_object(STUB_ARGS_DECLARATION); 329 JSObject* JIT_STUB cti_op_new_regexp(STUB_ARGS_DECLARATION); 330 JSObject* JIT_STUB cti_op_push_activation(STUB_ARGS_DECLARATION); 331 JSObject* JIT_STUB cti_op_push_new_scope(STUB_ARGS_DECLARATION); 332 JSObject* JIT_STUB cti_op_push_scope(STUB_ARGS_DECLARATION); 333 JSObject* JIT_STUB cti_op_put_by_id_transition_realloc(STUB_ARGS_DECLARATION); 334 JSPropertyNameIterator* JIT_STUB cti_op_get_pnames(STUB_ARGS_DECLARATION); 335 VoidPtrPair JIT_STUB cti_op_call_arityCheck(STUB_ARGS_DECLARATION); 336 int JIT_STUB cti_op_eq(STUB_ARGS_DECLARATION); 337 #if USE(JSVALUE32_64) 338 int JIT_STUB cti_op_eq_strings(STUB_ARGS_DECLARATION); 339 #endif 340 int JIT_STUB cti_op_jless(STUB_ARGS_DECLARATION); 341 int JIT_STUB cti_op_jlesseq(STUB_ARGS_DECLARATION); 342 int JIT_STUB cti_op_jtrue(STUB_ARGS_DECLARATION); 343 int JIT_STUB cti_op_load_varargs(STUB_ARGS_DECLARATION); 344 int JIT_STUB cti_op_loop_if_lesseq(STUB_ARGS_DECLARATION); 345 int JIT_STUB cti_timeout_check(STUB_ARGS_DECLARATION); 346 int JIT_STUB cti_has_property(STUB_ARGS_DECLARATION); 347 void JIT_STUB cti_op_create_arguments(STUB_ARGS_DECLARATION); 348 void JIT_STUB cti_op_create_arguments_no_params(STUB_ARGS_DECLARATION); 349 void JIT_STUB cti_op_debug(STUB_ARGS_DECLARATION); 350 void JIT_STUB cti_op_end(STUB_ARGS_DECLARATION); 351 void JIT_STUB cti_op_jmp_scopes(STUB_ARGS_DECLARATION); 352 void JIT_STUB cti_op_pop_scope(STUB_ARGS_DECLARATION); 353 void JIT_STUB cti_op_profile_did_call(STUB_ARGS_DECLARATION); 354 void JIT_STUB cti_op_profile_will_call(STUB_ARGS_DECLARATION); 355 void JIT_STUB cti_op_put_by_id(STUB_ARGS_DECLARATION); 356 void JIT_STUB cti_op_put_by_id_fail(STUB_ARGS_DECLARATION); 357 void JIT_STUB cti_op_put_by_id_generic(STUB_ARGS_DECLARATION); 358 void JIT_STUB cti_op_put_by_index(STUB_ARGS_DECLARATION); 359 void JIT_STUB cti_op_put_by_val(STUB_ARGS_DECLARATION); 360 void JIT_STUB cti_op_put_by_val_byte_array(STUB_ARGS_DECLARATION); 361 void JIT_STUB cti_op_put_getter(STUB_ARGS_DECLARATION); 362 void JIT_STUB cti_op_put_setter(STUB_ARGS_DECLARATION); 363 void JIT_STUB cti_op_ret_scopeChain(STUB_ARGS_DECLARATION); 364 void JIT_STUB cti_op_tear_off_activation(STUB_ARGS_DECLARATION); 365 void JIT_STUB cti_op_tear_off_arguments(STUB_ARGS_DECLARATION); 366 void JIT_STUB cti_register_file_check(STUB_ARGS_DECLARATION); 367 void* JIT_STUB cti_op_call_JSFunction(STUB_ARGS_DECLARATION); 368 void* JIT_STUB cti_op_switch_char(STUB_ARGS_DECLARATION); 369 void* JIT_STUB cti_op_switch_imm(STUB_ARGS_DECLARATION); 370 void* JIT_STUB cti_op_switch_string(STUB_ARGS_DECLARATION); 371 void* JIT_STUB cti_vm_lazyLinkCall(STUB_ARGS_DECLARATION); 372 } // extern "C" 373 374 } // namespace JSC 375 376 #endif // ENABLE(JIT) 377 378 #endif // JITStubs_h 379
