Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 1 | // Copyright 2014 the V8 project authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 5 | #include "src/runtime/runtime-utils.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 6 | |
| 7 | #include "src/arguments.h" |
| 8 | #include "src/deoptimizer.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 9 | #include "src/frames-inl.h" |
| 10 | #include "src/full-codegen/full-codegen.h" |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 11 | #include "src/isolate-inl.h" |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 12 | #include "src/snapshot/natives.h" |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 13 | |
| 14 | namespace v8 { |
| 15 | namespace internal { |
| 16 | |
| 17 | RUNTIME_FUNCTION(Runtime_DeoptimizeFunction) { |
| 18 | HandleScope scope(isolate); |
| 19 | DCHECK(args.length() == 1); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 20 | |
| 21 | // This function is used by fuzzers to get coverage in compiler. |
| 22 | // Ignore calls on non-function objects to avoid runtime errors. |
| 23 | CONVERT_ARG_HANDLE_CHECKED(Object, function_object, 0); |
| 24 | // If it is not a JSFunction, just return. |
| 25 | if (!function_object->IsJSFunction()) { |
| 26 | return isolate->heap()->undefined_value(); |
| 27 | } |
| 28 | Handle<JSFunction> function = Handle<JSFunction>::cast(function_object); |
| 29 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 30 | if (!function->IsOptimized()) return isolate->heap()->undefined_value(); |
| 31 | |
| 32 | // TODO(turbofan): Deoptimization is not supported yet. |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 33 | if (function->code()->is_turbofanned() && |
| 34 | function->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) { |
| 35 | return isolate->heap()->undefined_value(); |
| 36 | } |
| 37 | |
| 38 | Deoptimizer::DeoptimizeFunction(*function); |
| 39 | |
| 40 | return isolate->heap()->undefined_value(); |
| 41 | } |
| 42 | |
| 43 | |
| 44 | RUNTIME_FUNCTION(Runtime_DeoptimizeNow) { |
| 45 | HandleScope scope(isolate); |
| 46 | DCHECK(args.length() == 0); |
| 47 | |
| 48 | Handle<JSFunction> function; |
| 49 | |
| 50 | // If the argument is 'undefined', deoptimize the topmost |
| 51 | // function. |
| 52 | JavaScriptFrameIterator it(isolate); |
| 53 | while (!it.done()) { |
| 54 | if (it.frame()->is_java_script()) { |
| 55 | function = Handle<JSFunction>(it.frame()->function()); |
| 56 | break; |
| 57 | } |
| 58 | } |
| 59 | if (function.is_null()) return isolate->heap()->undefined_value(); |
| 60 | |
| 61 | if (!function->IsOptimized()) return isolate->heap()->undefined_value(); |
| 62 | |
| 63 | // TODO(turbofan): Deoptimization is not supported yet. |
| 64 | if (function->code()->is_turbofanned() && |
| 65 | function->shared()->asm_function() && !FLAG_turbo_asm_deoptimization) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 66 | return isolate->heap()->undefined_value(); |
| 67 | } |
| 68 | |
| 69 | Deoptimizer::DeoptimizeFunction(*function); |
| 70 | |
| 71 | return isolate->heap()->undefined_value(); |
| 72 | } |
| 73 | |
| 74 | |
| 75 | RUNTIME_FUNCTION(Runtime_RunningInSimulator) { |
| 76 | SealHandleScope shs(isolate); |
| 77 | DCHECK(args.length() == 0); |
| 78 | #if defined(USE_SIMULATOR) |
| 79 | return isolate->heap()->true_value(); |
| 80 | #else |
| 81 | return isolate->heap()->false_value(); |
| 82 | #endif |
| 83 | } |
| 84 | |
| 85 | |
| 86 | RUNTIME_FUNCTION(Runtime_IsConcurrentRecompilationSupported) { |
| 87 | SealHandleScope shs(isolate); |
| 88 | DCHECK(args.length() == 0); |
| 89 | return isolate->heap()->ToBoolean( |
| 90 | isolate->concurrent_recompilation_enabled()); |
| 91 | } |
| 92 | |
| 93 | |
| 94 | RUNTIME_FUNCTION(Runtime_OptimizeFunctionOnNextCall) { |
| 95 | HandleScope scope(isolate); |
| 96 | RUNTIME_ASSERT(args.length() == 1 || args.length() == 2); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 97 | |
| 98 | // This function is used by fuzzers to get coverage for optimizations |
| 99 | // in compiler. Ignore calls on non-function objects to avoid runtime errors. |
| 100 | CONVERT_ARG_HANDLE_CHECKED(Object, function_object, 0); |
| 101 | // If it is not a JSFunction, just return. |
| 102 | if (!function_object->IsJSFunction()) { |
| 103 | return isolate->heap()->undefined_value(); |
| 104 | } |
| 105 | Handle<JSFunction> function = Handle<JSFunction>::cast(function_object); |
| 106 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 107 | // The following assertion was lifted from the DCHECK inside |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 108 | // JSFunction::MarkForOptimization(). |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 109 | RUNTIME_ASSERT(function->shared()->allows_lazy_compilation() || |
| 110 | (function->code()->kind() == Code::FUNCTION && |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 111 | !function->shared()->optimization_disabled())); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 112 | |
| 113 | // If the function is already optimized, just return. |
| 114 | if (function->IsOptimized()) return isolate->heap()->undefined_value(); |
| 115 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 116 | function->MarkForOptimization(); |
| 117 | |
| 118 | Code* unoptimized = function->shared()->code(); |
| 119 | if (args.length() == 2 && unoptimized->kind() == Code::FUNCTION) { |
| 120 | CONVERT_ARG_HANDLE_CHECKED(String, type, 1); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 121 | if (type->IsOneByteEqualTo(STATIC_CHAR_VECTOR("concurrent")) && |
| 122 | isolate->concurrent_recompilation_enabled()) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 123 | function->AttemptConcurrentOptimization(); |
| 124 | } |
| 125 | } |
| 126 | |
| 127 | return isolate->heap()->undefined_value(); |
| 128 | } |
| 129 | |
| 130 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 131 | RUNTIME_FUNCTION(Runtime_OptimizeOsr) { |
| 132 | HandleScope scope(isolate); |
| 133 | RUNTIME_ASSERT(args.length() == 0 || args.length() == 1); |
| 134 | Handle<JSFunction> function = Handle<JSFunction>::null(); |
| 135 | |
| 136 | if (args.length() == 0) { |
| 137 | // Find the JavaScript function on the top of the stack. |
| 138 | JavaScriptFrameIterator it(isolate); |
| 139 | while (!it.done()) { |
| 140 | if (it.frame()->is_java_script()) { |
| 141 | function = Handle<JSFunction>(it.frame()->function()); |
| 142 | break; |
| 143 | } |
| 144 | } |
| 145 | if (function.is_null()) return isolate->heap()->undefined_value(); |
| 146 | } else { |
| 147 | // Function was passed as an argument. |
| 148 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, arg, 0); |
| 149 | function = arg; |
| 150 | } |
| 151 | |
| 152 | // The following assertion was lifted from the DCHECK inside |
| 153 | // JSFunction::MarkForOptimization(). |
| 154 | RUNTIME_ASSERT(function->shared()->allows_lazy_compilation() || |
| 155 | !function->shared()->optimization_disabled()); |
| 156 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 157 | // If function is interpreted, just return. OSR is not supported. |
| 158 | // TODO(4764): Remove this check when OSR is enabled in the interpreter. |
| 159 | if (function->shared()->HasBytecodeArray()) { |
| 160 | return isolate->heap()->undefined_value(); |
| 161 | } |
| 162 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 163 | // If the function is already optimized, just return. |
| 164 | if (function->IsOptimized()) return isolate->heap()->undefined_value(); |
| 165 | |
| 166 | Code* unoptimized = function->shared()->code(); |
| 167 | if (unoptimized->kind() == Code::FUNCTION) { |
| 168 | DCHECK(BackEdgeTable::Verify(isolate, unoptimized)); |
| 169 | isolate->runtime_profiler()->AttemptOnStackReplacement( |
| 170 | *function, Code::kMaxLoopNestingMarker); |
| 171 | } |
| 172 | |
| 173 | return isolate->heap()->undefined_value(); |
| 174 | } |
| 175 | |
| 176 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 177 | RUNTIME_FUNCTION(Runtime_NeverOptimizeFunction) { |
| 178 | HandleScope scope(isolate); |
| 179 | DCHECK(args.length() == 1); |
| 180 | CONVERT_ARG_CHECKED(JSFunction, function, 0); |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 181 | function->shared()->set_disable_optimization_reason( |
| 182 | kOptimizationDisabledForTest); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 183 | function->shared()->set_optimization_disabled(true); |
| 184 | return isolate->heap()->undefined_value(); |
| 185 | } |
| 186 | |
| 187 | |
| 188 | RUNTIME_FUNCTION(Runtime_GetOptimizationStatus) { |
| 189 | HandleScope scope(isolate); |
| 190 | RUNTIME_ASSERT(args.length() == 1 || args.length() == 2); |
| 191 | if (!isolate->use_crankshaft()) { |
| 192 | return Smi::FromInt(4); // 4 == "never". |
| 193 | } |
| 194 | bool sync_with_compiler_thread = true; |
| 195 | if (args.length() == 2) { |
| 196 | CONVERT_ARG_HANDLE_CHECKED(String, sync, 1); |
| 197 | if (sync->IsOneByteEqualTo(STATIC_CHAR_VECTOR("no sync"))) { |
| 198 | sync_with_compiler_thread = false; |
| 199 | } |
| 200 | } |
| 201 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 202 | if (isolate->concurrent_recompilation_enabled() && |
| 203 | sync_with_compiler_thread) { |
| 204 | while (function->IsInOptimizationQueue()) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 205 | isolate->optimizing_compile_dispatcher()->InstallOptimizedFunctions(); |
| 206 | base::OS::Sleep(base::TimeDelta::FromMilliseconds(50)); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 207 | } |
| 208 | } |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 209 | if (FLAG_always_opt || FLAG_prepare_always_opt) { |
| 210 | // With --always-opt, optimization status expectations might not |
| 211 | // match up, so just return a sentinel. |
| 212 | return Smi::FromInt(3); // 3 == "always". |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 213 | } |
| 214 | if (FLAG_deopt_every_n_times) { |
| 215 | return Smi::FromInt(6); // 6 == "maybe deopted". |
| 216 | } |
| 217 | if (function->IsOptimized() && function->code()->is_turbofanned()) { |
| 218 | return Smi::FromInt(7); // 7 == "TurboFan compiler". |
| 219 | } |
| 220 | return function->IsOptimized() ? Smi::FromInt(1) // 1 == "yes". |
| 221 | : Smi::FromInt(2); // 2 == "no". |
| 222 | } |
| 223 | |
| 224 | |
| 225 | RUNTIME_FUNCTION(Runtime_UnblockConcurrentRecompilation) { |
| 226 | DCHECK(args.length() == 0); |
| 227 | RUNTIME_ASSERT(FLAG_block_concurrent_recompilation); |
| 228 | RUNTIME_ASSERT(isolate->concurrent_recompilation_enabled()); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 229 | isolate->optimizing_compile_dispatcher()->Unblock(); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 230 | return isolate->heap()->undefined_value(); |
| 231 | } |
| 232 | |
| 233 | |
| 234 | RUNTIME_FUNCTION(Runtime_GetOptimizationCount) { |
| 235 | HandleScope scope(isolate); |
| 236 | DCHECK(args.length() == 1); |
| 237 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 238 | return Smi::FromInt(function->shared()->opt_count()); |
| 239 | } |
| 240 | |
| 241 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 242 | RUNTIME_FUNCTION(Runtime_GetUndetectable) { |
| 243 | HandleScope scope(isolate); |
| 244 | DCHECK(args.length() == 0); |
| 245 | v8::Isolate* v8_isolate = reinterpret_cast<v8::Isolate*>(isolate); |
| 246 | |
| 247 | Local<v8::ObjectTemplate> desc = v8::ObjectTemplate::New(v8_isolate); |
| 248 | desc->MarkAsUndetectable(); |
| 249 | Local<v8::Object> obj; |
| 250 | if (!desc->NewInstance(v8_isolate->GetCurrentContext()).ToLocal(&obj)) { |
| 251 | return nullptr; |
| 252 | } |
| 253 | return *Utils::OpenHandle(*obj); |
| 254 | } |
| 255 | |
| 256 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 257 | RUNTIME_FUNCTION(Runtime_ClearFunctionTypeFeedback) { |
| 258 | HandleScope scope(isolate); |
| 259 | DCHECK(args.length() == 1); |
| 260 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, function, 0); |
| 261 | function->shared()->ClearTypeFeedbackInfo(); |
| 262 | Code* unoptimized = function->shared()->code(); |
| 263 | if (unoptimized->kind() == Code::FUNCTION) { |
| 264 | unoptimized->ClearInlineCaches(); |
| 265 | } |
| 266 | return isolate->heap()->undefined_value(); |
| 267 | } |
| 268 | |
| 269 | |
| 270 | RUNTIME_FUNCTION(Runtime_NotifyContextDisposed) { |
| 271 | HandleScope scope(isolate); |
| 272 | DCHECK(args.length() == 0); |
| 273 | isolate->heap()->NotifyContextDisposed(true); |
| 274 | return isolate->heap()->undefined_value(); |
| 275 | } |
| 276 | |
| 277 | |
| 278 | RUNTIME_FUNCTION(Runtime_SetAllocationTimeout) { |
| 279 | SealHandleScope shs(isolate); |
| 280 | DCHECK(args.length() == 2 || args.length() == 3); |
| 281 | #ifdef DEBUG |
| 282 | CONVERT_SMI_ARG_CHECKED(interval, 0); |
| 283 | CONVERT_SMI_ARG_CHECKED(timeout, 1); |
| 284 | isolate->heap()->set_allocation_timeout(timeout); |
| 285 | FLAG_gc_interval = interval; |
| 286 | if (args.length() == 3) { |
| 287 | // Enable/disable inline allocation if requested. |
| 288 | CONVERT_BOOLEAN_ARG_CHECKED(inline_allocation, 2); |
| 289 | if (inline_allocation) { |
| 290 | isolate->heap()->EnableInlineAllocation(); |
| 291 | } else { |
| 292 | isolate->heap()->DisableInlineAllocation(); |
| 293 | } |
| 294 | } |
| 295 | #endif |
| 296 | return isolate->heap()->undefined_value(); |
| 297 | } |
| 298 | |
| 299 | |
| 300 | RUNTIME_FUNCTION(Runtime_DebugPrint) { |
| 301 | SealHandleScope shs(isolate); |
| 302 | DCHECK(args.length() == 1); |
| 303 | |
| 304 | OFStream os(stdout); |
| 305 | #ifdef DEBUG |
| 306 | if (args[0]->IsString()) { |
| 307 | // If we have a string, assume it's a code "marker" |
| 308 | // and print some interesting cpu debugging info. |
| 309 | JavaScriptFrameIterator it(isolate); |
| 310 | JavaScriptFrame* frame = it.frame(); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 311 | os << "fp = " << static_cast<void*>(frame->fp()) |
| 312 | << ", sp = " << static_cast<void*>(frame->sp()) |
| 313 | << ", caller_sp = " << static_cast<void*>(frame->caller_sp()) << ": "; |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 314 | } else { |
| 315 | os << "DebugPrint: "; |
| 316 | } |
| 317 | args[0]->Print(os); |
| 318 | if (args[0]->IsHeapObject()) { |
| 319 | os << "\n"; |
| 320 | HeapObject::cast(args[0])->map()->Print(os); |
| 321 | } |
| 322 | #else |
| 323 | // ShortPrint is available in release mode. Print is not. |
| 324 | os << Brief(args[0]); |
| 325 | #endif |
| 326 | os << std::endl; |
| 327 | |
| 328 | return args[0]; // return TOS |
| 329 | } |
| 330 | |
| 331 | |
| 332 | RUNTIME_FUNCTION(Runtime_DebugTrace) { |
| 333 | SealHandleScope shs(isolate); |
| 334 | DCHECK(args.length() == 0); |
| 335 | isolate->PrintStack(stdout); |
| 336 | return isolate->heap()->undefined_value(); |
| 337 | } |
| 338 | |
| 339 | |
| 340 | // This will not allocate (flatten the string), but it may run |
| 341 | // very slowly for very deeply nested ConsStrings. For debugging use only. |
| 342 | RUNTIME_FUNCTION(Runtime_GlobalPrint) { |
| 343 | SealHandleScope shs(isolate); |
| 344 | DCHECK(args.length() == 1); |
| 345 | |
| 346 | CONVERT_ARG_CHECKED(String, string, 0); |
| 347 | StringCharacterStream stream(string); |
| 348 | while (stream.HasMore()) { |
| 349 | uint16_t character = stream.GetNext(); |
| 350 | PrintF("%c", character); |
| 351 | } |
| 352 | return string; |
| 353 | } |
| 354 | |
| 355 | |
| 356 | RUNTIME_FUNCTION(Runtime_SystemBreak) { |
| 357 | // The code below doesn't create handles, but when breaking here in GDB |
| 358 | // having a handle scope might be useful. |
| 359 | HandleScope scope(isolate); |
| 360 | DCHECK(args.length() == 0); |
| 361 | base::OS::DebugBreak(); |
| 362 | return isolate->heap()->undefined_value(); |
| 363 | } |
| 364 | |
| 365 | |
| 366 | // Sets a v8 flag. |
| 367 | RUNTIME_FUNCTION(Runtime_SetFlags) { |
| 368 | SealHandleScope shs(isolate); |
| 369 | DCHECK(args.length() == 1); |
| 370 | CONVERT_ARG_CHECKED(String, arg, 0); |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 371 | base::SmartArrayPointer<char> flags = |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 372 | arg->ToCString(DISALLOW_NULLS, ROBUST_STRING_TRAVERSAL); |
| 373 | FlagList::SetFlagsFromString(flags.get(), StrLength(flags.get())); |
| 374 | return isolate->heap()->undefined_value(); |
| 375 | } |
| 376 | |
| 377 | |
| 378 | RUNTIME_FUNCTION(Runtime_Abort) { |
| 379 | SealHandleScope shs(isolate); |
| 380 | DCHECK(args.length() == 1); |
| 381 | CONVERT_SMI_ARG_CHECKED(message_id, 0); |
| 382 | const char* message = |
| 383 | GetBailoutReason(static_cast<BailoutReason>(message_id)); |
| 384 | base::OS::PrintError("abort: %s\n", message); |
| 385 | isolate->PrintStack(stderr); |
| 386 | base::OS::Abort(); |
| 387 | UNREACHABLE(); |
| 388 | return NULL; |
| 389 | } |
| 390 | |
| 391 | |
| 392 | RUNTIME_FUNCTION(Runtime_AbortJS) { |
| 393 | HandleScope scope(isolate); |
| 394 | DCHECK(args.length() == 1); |
| 395 | CONVERT_ARG_HANDLE_CHECKED(String, message, 0); |
| 396 | base::OS::PrintError("abort: %s\n", message->ToCString().get()); |
| 397 | isolate->PrintStack(stderr); |
| 398 | base::OS::Abort(); |
| 399 | UNREACHABLE(); |
| 400 | return NULL; |
| 401 | } |
| 402 | |
| 403 | |
| 404 | RUNTIME_FUNCTION(Runtime_NativeScriptsCount) { |
| 405 | DCHECK(args.length() == 0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 406 | return Smi::FromInt(Natives::GetBuiltinsCount()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 407 | } |
| 408 | |
| 409 | |
| 410 | // Returns V8 version as a string. |
| 411 | RUNTIME_FUNCTION(Runtime_GetV8Version) { |
| 412 | HandleScope scope(isolate); |
| 413 | DCHECK(args.length() == 0); |
| 414 | |
| 415 | const char* version_string = v8::V8::GetVersion(); |
| 416 | |
| 417 | return *isolate->factory()->NewStringFromAsciiChecked(version_string); |
| 418 | } |
| 419 | |
| 420 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 421 | RUNTIME_FUNCTION(Runtime_DisassembleFunction) { |
| 422 | HandleScope scope(isolate); |
| 423 | #ifdef DEBUG |
| 424 | DCHECK(args.length() == 1); |
| 425 | // Get the function and make sure it is compiled. |
| 426 | CONVERT_ARG_HANDLE_CHECKED(JSFunction, func, 0); |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 427 | if (!Compiler::Compile(func, Compiler::KEEP_EXCEPTION)) { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 428 | return isolate->heap()->exception(); |
| 429 | } |
| 430 | OFStream os(stdout); |
| 431 | func->code()->Print(os); |
| 432 | os << std::endl; |
| 433 | #endif // DEBUG |
| 434 | return isolate->heap()->undefined_value(); |
| 435 | } |
| 436 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 437 | namespace { |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 438 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 439 | int StackSize(Isolate* isolate) { |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 440 | int n = 0; |
| 441 | for (JavaScriptFrameIterator it(isolate); !it.done(); it.Advance()) n++; |
| 442 | return n; |
| 443 | } |
| 444 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 445 | void PrintIndentation(Isolate* isolate) { |
| 446 | const int nmax = 80; |
| 447 | int n = StackSize(isolate); |
| 448 | if (n <= nmax) { |
| 449 | PrintF("%4d:%*s", n, n, ""); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 450 | } else { |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 451 | PrintF("%4d:%*s", n, nmax, "..."); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 452 | } |
| 453 | } |
| 454 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 455 | } // namespace |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 456 | |
| 457 | RUNTIME_FUNCTION(Runtime_TraceEnter) { |
| 458 | SealHandleScope shs(isolate); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 459 | DCHECK_EQ(0, args.length()); |
| 460 | PrintIndentation(isolate); |
| 461 | JavaScriptFrame::PrintTop(isolate, stdout, true, false); |
| 462 | PrintF(" {\n"); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 463 | return isolate->heap()->undefined_value(); |
| 464 | } |
| 465 | |
| 466 | |
| 467 | RUNTIME_FUNCTION(Runtime_TraceExit) { |
| 468 | SealHandleScope shs(isolate); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 469 | DCHECK_EQ(1, args.length()); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 470 | CONVERT_ARG_CHECKED(Object, obj, 0); |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 471 | PrintIndentation(isolate); |
| 472 | PrintF("} -> "); |
| 473 | obj->ShortPrint(); |
| 474 | PrintF("\n"); |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 475 | return obj; // return TOS |
| 476 | } |
| 477 | |
Ben Murdoch | 097c5b2 | 2016-05-18 11:27:45 +0100 | [diff] [blame] | 478 | RUNTIME_FUNCTION(Runtime_TraceTailCall) { |
| 479 | SealHandleScope shs(isolate); |
| 480 | DCHECK_EQ(0, args.length()); |
| 481 | PrintIndentation(isolate); |
| 482 | PrintF("} -> tail call ->\n"); |
| 483 | return isolate->heap()->undefined_value(); |
| 484 | } |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 485 | |
Ben Murdoch | c561043 | 2016-08-08 18:44:38 +0100 | [diff] [blame^] | 486 | RUNTIME_FUNCTION(Runtime_GetExceptionDetails) { |
| 487 | HandleScope shs(isolate); |
| 488 | DCHECK(args.length() == 1); |
| 489 | CONVERT_ARG_HANDLE_CHECKED(JSObject, exception_obj, 0); |
| 490 | |
| 491 | Factory* factory = isolate->factory(); |
| 492 | Handle<JSMessageObject> message_obj = |
| 493 | isolate->CreateMessage(exception_obj, nullptr); |
| 494 | |
| 495 | Handle<JSObject> message = factory->NewJSObject(isolate->object_function()); |
| 496 | |
| 497 | Handle<String> key; |
| 498 | Handle<Object> value; |
| 499 | |
| 500 | key = factory->NewStringFromAsciiChecked("start_pos"); |
| 501 | value = handle(Smi::FromInt(message_obj->start_position()), isolate); |
| 502 | JSObject::SetProperty(message, key, value, STRICT).Assert(); |
| 503 | |
| 504 | key = factory->NewStringFromAsciiChecked("end_pos"); |
| 505 | value = handle(Smi::FromInt(message_obj->end_position()), isolate); |
| 506 | JSObject::SetProperty(message, key, value, STRICT).Assert(); |
| 507 | |
| 508 | return *message; |
| 509 | } |
| 510 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 511 | RUNTIME_FUNCTION(Runtime_HaveSameMap) { |
| 512 | SealHandleScope shs(isolate); |
| 513 | DCHECK(args.length() == 2); |
| 514 | CONVERT_ARG_CHECKED(JSObject, obj1, 0); |
| 515 | CONVERT_ARG_CHECKED(JSObject, obj2, 1); |
| 516 | return isolate->heap()->ToBoolean(obj1->map() == obj2->map()); |
| 517 | } |
| 518 | |
| 519 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 520 | RUNTIME_FUNCTION(Runtime_InNewSpace) { |
| 521 | SealHandleScope shs(isolate); |
| 522 | DCHECK(args.length() == 1); |
| 523 | CONVERT_ARG_CHECKED(Object, obj, 0); |
| 524 | return isolate->heap()->ToBoolean(isolate->heap()->InNewSpace(obj)); |
| 525 | } |
| 526 | |
| 527 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 528 | #define ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(Name) \ |
| 529 | RUNTIME_FUNCTION(Runtime_Has##Name) { \ |
| 530 | CONVERT_ARG_CHECKED(JSObject, obj, 0); \ |
| 531 | return isolate->heap()->ToBoolean(obj->Has##Name()); \ |
| 532 | } |
| 533 | |
| 534 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastSmiElements) |
| 535 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastObjectElements) |
| 536 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastSmiOrObjectElements) |
| 537 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastDoubleElements) |
| 538 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastHoleyElements) |
| 539 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(DictionaryElements) |
| 540 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(SloppyArgumentsElements) |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 541 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FixedTypedArrayElements) |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 542 | // Properties test sitting with elements tests - not fooling anyone. |
| 543 | ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION(FastProperties) |
| 544 | |
| 545 | #undef ELEMENTS_KIND_CHECK_RUNTIME_FUNCTION |
| 546 | |
| 547 | |
Emily Bernier | d0a1eb7 | 2015-03-24 16:35:39 -0400 | [diff] [blame] | 548 | #define FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION(Type, type, TYPE, ctype, s) \ |
| 549 | RUNTIME_FUNCTION(Runtime_HasFixed##Type##Elements) { \ |
| 550 | CONVERT_ARG_CHECKED(JSObject, obj, 0); \ |
| 551 | return isolate->heap()->ToBoolean(obj->HasFixed##Type##Elements()); \ |
| 552 | } |
| 553 | |
| 554 | TYPED_ARRAYS(FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION) |
| 555 | |
| 556 | #undef FIXED_TYPED_ARRAYS_CHECK_RUNTIME_FUNCTION |
Ben Murdoch | da12d29 | 2016-06-02 14:46:10 +0100 | [diff] [blame] | 557 | |
| 558 | |
| 559 | RUNTIME_FUNCTION(Runtime_SpeciesProtector) { |
| 560 | SealHandleScope shs(isolate); |
| 561 | DCHECK_EQ(0, args.length()); |
| 562 | return isolate->heap()->ToBoolean(isolate->IsArraySpeciesLookupChainIntact()); |
| 563 | } |
| 564 | |
| 565 | |
Ben Murdoch | 4a90d5f | 2016-03-22 12:00:34 +0000 | [diff] [blame] | 566 | } // namespace internal |
| 567 | } // namespace v8 |