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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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13199 CONVERT_NUMBER_CHECKED(int32_t, limit, Int32, args[2]); | 13199 CONVERT_NUMBER_CHECKED(int32_t, limit, Int32, args[2]); |
13200 | 13200 |
13201 HandleScope scope(isolate); | 13201 HandleScope scope(isolate); |
13202 // Optionally capture a more detailed stack trace for the message. | 13202 // Optionally capture a more detailed stack trace for the message. |
13203 isolate->CaptureAndSetDetailedStackTrace(error_object); | 13203 isolate->CaptureAndSetDetailedStackTrace(error_object); |
13204 // Capture a simple stack trace for the stack property. | 13204 // Capture a simple stack trace for the stack property. |
13205 return *isolate->CaptureSimpleStackTrace(error_object, caller, limit); | 13205 return *isolate->CaptureSimpleStackTrace(error_object, caller, limit); |
13206 } | 13206 } |
13207 | 13207 |
13208 | 13208 |
13209 // Mark a function to recognize when called after GC to format the stack trace. | 13209 // Retrieve the raw stack trace collected on stack overflow and delete |
13210 RUNTIME_FUNCTION(MaybeObject*, Runtime_MarkOneShotGetter) { | 13210 // it since it is used only once to avoid keeping it alive. |
13211 ASSERT_EQ(args.length(), 1); | 13211 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOverflowedRawStackTrace) { |
13212 CONVERT_ARG_HANDLE_CHECKED(JSFunction, fun, 0); | |
13213 HandleScope scope(isolate); | |
13214 Handle<String> key = isolate->factory()->hidden_stack_trace_symbol(); | |
13215 JSObject::SetHiddenProperty(fun, key, key); | |
13216 return *fun; | |
13217 } | |
13218 | |
13219 | |
13220 // Retrieve the stack trace. This could be the raw stack trace collected | |
13221 // on stack overflow or the already formatted stack trace string. | |
13222 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetOverflowedStackTrace) { | |
13223 HandleScope scope(isolate); | |
13224 ASSERT_EQ(args.length(), 1); | 13212 ASSERT_EQ(args.length(), 1); |
13225 CONVERT_ARG_CHECKED(JSObject, error_object, 0); | 13213 CONVERT_ARG_CHECKED(JSObject, error_object, 0); |
13226 String* key = isolate->heap()->hidden_stack_trace_symbol(); | 13214 String* key = isolate->heap()->hidden_stack_trace_symbol(); |
13227 Object* result = error_object->GetHiddenProperty(key); | 13215 Object* result = error_object->GetHiddenProperty(key); |
13228 RUNTIME_ASSERT(result->IsJSArray() || | 13216 RUNTIME_ASSERT(result->IsJSArray() || result->IsUndefined()); |
13229 result->IsString() || | 13217 error_object->DeleteHiddenProperty(key); |
13230 result->IsUndefined()); | |
13231 return result; | 13218 return result; |
13232 } | 13219 } |
13233 | 13220 |
13234 | 13221 |
13235 // Set or clear the stack trace attached to an stack overflow error object. | |
13236 RUNTIME_FUNCTION(MaybeObject*, Runtime_SetOverflowedStackTrace) { | |
13237 HandleScope scope(isolate); | |
13238 ASSERT_EQ(args.length(), 2); | |
13239 CONVERT_ARG_HANDLE_CHECKED(JSObject, error_object, 0); | |
13240 CONVERT_ARG_HANDLE_CHECKED(HeapObject, value, 1); | |
13241 Handle<String> key = isolate->factory()->hidden_stack_trace_symbol(); | |
13242 if (value->IsUndefined()) { | |
13243 error_object->DeleteHiddenProperty(*key); | |
13244 } else { | |
13245 RUNTIME_ASSERT(value->IsString()); | |
13246 JSObject::SetHiddenProperty(error_object, key, value); | |
13247 } | |
13248 return *error_object; | |
13249 } | |
13250 | |
13251 | |
13252 // Returns V8 version as a string. | 13222 // Returns V8 version as a string. |
13253 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetV8Version) { | 13223 RUNTIME_FUNCTION(MaybeObject*, Runtime_GetV8Version) { |
13254 ASSERT_EQ(args.length(), 0); | 13224 ASSERT_EQ(args.length(), 0); |
13255 | 13225 |
13256 NoHandleAllocation ha; | 13226 NoHandleAllocation ha; |
13257 | 13227 |
13258 const char* version_string = v8::V8::GetVersion(); | 13228 const char* version_string = v8::V8::GetVersion(); |
13259 | 13229 |
13260 return isolate->heap()->AllocateStringFromOneByte(CStrVector(version_string), | 13230 return isolate->heap()->AllocateStringFromOneByte(CStrVector(version_string), |
13261 NOT_TENURED); | 13231 NOT_TENURED); |
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13651 // Handle last resort GC and make sure to allow future allocations | 13621 // Handle last resort GC and make sure to allow future allocations |
13652 // to grow the heap without causing GCs (if possible). | 13622 // to grow the heap without causing GCs (if possible). |
13653 isolate->counters()->gc_last_resort_from_js()->Increment(); | 13623 isolate->counters()->gc_last_resort_from_js()->Increment(); |
13654 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, | 13624 isolate->heap()->CollectAllGarbage(Heap::kNoGCFlags, |
13655 "Runtime::PerformGC"); | 13625 "Runtime::PerformGC"); |
13656 } | 13626 } |
13657 } | 13627 } |
13658 | 13628 |
13659 | 13629 |
13660 } } // namespace v8::internal | 13630 } } // namespace v8::internal |
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