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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 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "src/isolate.h" | 5 #include "src/isolate.h" |
6 | 6 |
7 #include <stdlib.h> | 7 #include <stdlib.h> |
8 | 8 |
9 #include <fstream> // NOLINT(readability/streams) | 9 #include <fstream> // NOLINT(readability/streams) |
10 #include <sstream> | 10 #include <sstream> |
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1001 | 1001 |
1002 if (bootstrapper()->IsActive()) { | 1002 if (bootstrapper()->IsActive()) { |
1003 // It's not safe to try to make message objects or collect stack traces | 1003 // It's not safe to try to make message objects or collect stack traces |
1004 // while the bootstrapper is active since the infrastructure may not have | 1004 // while the bootstrapper is active since the infrastructure may not have |
1005 // been properly initialized. | 1005 // been properly initialized. |
1006 ReportBootstrappingException(exception_handle, location); | 1006 ReportBootstrappingException(exception_handle, location); |
1007 } else { | 1007 } else { |
1008 Handle<Object> message_obj = CreateMessage(exception_handle, location); | 1008 Handle<Object> message_obj = CreateMessage(exception_handle, location); |
1009 thread_local_top()->pending_message_obj_ = *message_obj; | 1009 thread_local_top()->pending_message_obj_ = *message_obj; |
1010 | 1010 |
1011 // If the abort-on-uncaught-exception flag is specified, abort on any | 1011 // For any exception not caught by JavaScript, even when an external |
1012 // exception not caught by JavaScript, even when an external handler is | 1012 // handler is present: |
1013 // present. This flag is intended for use by JavaScript developers, so | 1013 // If the abort-on-uncaught-exception flag is specified, and if the |
1014 // print a user-friendly stack trace (not an internal one). | 1014 // embedder didn't specify a custom uncaught exception callback, |
| 1015 // or if the custom callback determined that V8 should abort, then |
| 1016 // abort. |
1015 if (FLAG_abort_on_uncaught_exception && | 1017 if (FLAG_abort_on_uncaught_exception && |
1016 PredictExceptionCatcher() != CAUGHT_BY_JAVASCRIPT) { | 1018 PredictExceptionCatcher() != CAUGHT_BY_JAVASCRIPT && |
1017 FLAG_abort_on_uncaught_exception = false; // Prevent endless recursion. | 1019 (!abort_on_uncaught_exception_callback_ || |
| 1020 abort_on_uncaught_exception_callback_( |
| 1021 reinterpret_cast<v8::Isolate*>(this)))) { |
| 1022 // Prevent endless recursion. |
| 1023 FLAG_abort_on_uncaught_exception = false; |
| 1024 // This flag is intended for use by JavaScript developers, so |
| 1025 // print a user-friendly stack trace (not an internal one). |
1018 PrintF(stderr, "%s\n\nFROM\n", | 1026 PrintF(stderr, "%s\n\nFROM\n", |
1019 MessageHandler::GetLocalizedMessage(this, message_obj).get()); | 1027 MessageHandler::GetLocalizedMessage(this, message_obj).get()); |
1020 PrintCurrentStackTrace(stderr); | 1028 PrintCurrentStackTrace(stderr); |
1021 base::OS::Abort(); | 1029 base::OS::Abort(); |
1022 } | 1030 } |
1023 } | 1031 } |
1024 } | 1032 } |
1025 | 1033 |
1026 // Set the exception being thrown. | 1034 // Set the exception being thrown. |
1027 set_pending_exception(*exception_handle); | 1035 set_pending_exception(*exception_handle); |
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1595 void Isolate::SetCaptureStackTraceForUncaughtExceptions( | 1603 void Isolate::SetCaptureStackTraceForUncaughtExceptions( |
1596 bool capture, | 1604 bool capture, |
1597 int frame_limit, | 1605 int frame_limit, |
1598 StackTrace::StackTraceOptions options) { | 1606 StackTrace::StackTraceOptions options) { |
1599 capture_stack_trace_for_uncaught_exceptions_ = capture; | 1607 capture_stack_trace_for_uncaught_exceptions_ = capture; |
1600 stack_trace_for_uncaught_exceptions_frame_limit_ = frame_limit; | 1608 stack_trace_for_uncaught_exceptions_frame_limit_ = frame_limit; |
1601 stack_trace_for_uncaught_exceptions_options_ = options; | 1609 stack_trace_for_uncaught_exceptions_options_ = options; |
1602 } | 1610 } |
1603 | 1611 |
1604 | 1612 |
| 1613 void Isolate::SetAbortOnUncaughtExceptionCallback( |
| 1614 v8::Isolate::AbortOnUncaughtExceptionCallback callback) { |
| 1615 abort_on_uncaught_exception_callback_ = callback; |
| 1616 } |
| 1617 |
| 1618 |
1605 Handle<Context> Isolate::native_context() { | 1619 Handle<Context> Isolate::native_context() { |
1606 return handle(context()->native_context()); | 1620 return handle(context()->native_context()); |
1607 } | 1621 } |
1608 | 1622 |
1609 | 1623 |
1610 Handle<Context> Isolate::GetCallingNativeContext() { | 1624 Handle<Context> Isolate::GetCallingNativeContext() { |
1611 JavaScriptFrameIterator it(this); | 1625 JavaScriptFrameIterator it(this); |
1612 if (debug_->in_debug_scope()) { | 1626 if (debug_->in_debug_scope()) { |
1613 while (!it.done()) { | 1627 while (!it.done()) { |
1614 JavaScriptFrame* frame = it.frame(); | 1628 JavaScriptFrame* frame = it.frame(); |
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1763 function_entry_hook_(NULL), | 1777 function_entry_hook_(NULL), |
1764 deferred_handles_head_(NULL), | 1778 deferred_handles_head_(NULL), |
1765 optimizing_compile_dispatcher_(NULL), | 1779 optimizing_compile_dispatcher_(NULL), |
1766 stress_deopt_count_(0), | 1780 stress_deopt_count_(0), |
1767 vector_store_virtual_register_(NULL), | 1781 vector_store_virtual_register_(NULL), |
1768 next_optimization_id_(0), | 1782 next_optimization_id_(0), |
1769 #if TRACE_MAPS | 1783 #if TRACE_MAPS |
1770 next_unique_sfi_id_(0), | 1784 next_unique_sfi_id_(0), |
1771 #endif | 1785 #endif |
1772 use_counter_callback_(NULL), | 1786 use_counter_callback_(NULL), |
1773 basic_block_profiler_(NULL) { | 1787 basic_block_profiler_(NULL), |
| 1788 abort_on_uncaught_exception_callback_(NULL) { |
1774 { | 1789 { |
1775 base::LockGuard<base::Mutex> lock_guard(thread_data_table_mutex_.Pointer()); | 1790 base::LockGuard<base::Mutex> lock_guard(thread_data_table_mutex_.Pointer()); |
1776 CHECK(thread_data_table_); | 1791 CHECK(thread_data_table_); |
1777 } | 1792 } |
1778 id_ = base::NoBarrier_AtomicIncrement(&isolate_counter_, 1); | 1793 id_ = base::NoBarrier_AtomicIncrement(&isolate_counter_, 1); |
1779 TRACE_ISOLATE(constructor); | 1794 TRACE_ISOLATE(constructor); |
1780 | 1795 |
1781 memset(isolate_addresses_, 0, | 1796 memset(isolate_addresses_, 0, |
1782 sizeof(isolate_addresses_[0]) * (kIsolateAddressCount + 1)); | 1797 sizeof(isolate_addresses_[0]) * (kIsolateAddressCount + 1)); |
1783 | 1798 |
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2822 // Then check whether this scope intercepts. | 2837 // Then check whether this scope intercepts. |
2823 if ((flag & intercept_mask_)) { | 2838 if ((flag & intercept_mask_)) { |
2824 intercepted_flags_ |= flag; | 2839 intercepted_flags_ |= flag; |
2825 return true; | 2840 return true; |
2826 } | 2841 } |
2827 return false; | 2842 return false; |
2828 } | 2843 } |
2829 | 2844 |
2830 } // namespace internal | 2845 } // namespace internal |
2831 } // namespace v8 | 2846 } // namespace v8 |
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