| 1 | Starting program: /Users/Shared/libunwind_test/test_throw.libcxx.i386 |
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| 2 | unable to read unknown load command 0x24 |
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| 3 | unable to read unknown load command 0x26 |
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| 4 | unable to read unknown load command 0x24 |
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| 5 | unable to read unknown load command 0x26 |
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| 6 | unable to read unknown load command 0x24 |
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| 7 | unable to read unknown load command 0x26 |
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| 8 | Reading symbols for shared libraries ++++. done |
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| 9 | |
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| 10 | Breakpoint 1, 0x00001da4 in main () |
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| 11 | (gdb) step |
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| 12 | Single stepping until exit from function main, |
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| 13 | which has no line number information. |
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| 14 | unable to read unknown load command 0x24 |
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| 15 | __cxa_allocate_exception (thrown_size=4) at ../src/cxa_exception.cpp:160 |
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| 16 | 160 size_t actual_size = cxa_exception_size_from_exception_thrown_size(thrown_size); |
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| 17 | (gdb) |
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| 18 | Current language: auto; currently c++ |
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| 19 | __cxxabiv1::cxa_exception_size_from_exception_thrown_size (size=4) at ../src/cxa_exception.cpp:76 |
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| 20 | 76 return size + sizeof (__cxa_exception); |
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| 21 | (gdb) |
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| 22 | 76 return size + sizeof (__cxa_exception); |
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| 23 | (gdb) |
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| 24 | __cxa_allocate_exception (thrown_size=4) at ../src/cxa_exception.cpp:161 |
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| 25 | 161 __cxa_exception* exception_header = static_cast<__cxa_exception*>(do_malloc(actual_size)); |
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| 26 | (gdb) |
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| 27 | __cxxabiv1::do_malloc (size=84) at ../src/cxa_exception.cpp:111 |
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| 28 | 111 void *ptr = std::malloc(size); |
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| 29 | (gdb) |
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| 30 | 112 if (NULL == ptr) // if malloc fails, fall back to emergency stash |
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| 31 | (gdb) |
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| 32 | 114 return ptr; |
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| 33 | (gdb) |
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| 34 | 114 return ptr; |
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| 35 | (gdb) |
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| 36 | __cxa_allocate_exception (thrown_size=4) at ../src/cxa_exception.cpp:162 |
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| 37 | 162 if (NULL == exception_header) |
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| 38 | (gdb) |
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| 39 | 164 std::memset(exception_header, 0, actual_size); |
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| 40 | (gdb) |
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| 41 | 165 return thrown_object_from_cxa_exception(exception_header); |
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| 42 | (gdb) |
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| 43 | __cxxabiv1::thrown_object_from_cxa_exception (exception_header=0x300180) at ../src/cxa_exception.cpp:57 |
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| 44 | 57 return static_cast<void*>(exception_header + 1); |
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| 45 | (gdb) |
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| 46 | 57 return static_cast<void*>(exception_header + 1); |
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| 47 | (gdb) |
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| 48 | __cxa_allocate_exception (thrown_size=4) at ../src/cxa_exception.cpp:165 |
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| 49 | 165 return thrown_object_from_cxa_exception(exception_header); |
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| 50 | (gdb) |
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| 51 | 0x00001dd9 in main () |
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| 52 | (gdb) |
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| 53 | Single stepping until exit from function main, |
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| 54 | which has no line number information. |
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| 55 | unable to read unknown load command 0x24 |
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| 56 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:223 |
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| 57 | 223 __cxa_eh_globals *globals = __cxa_get_globals(); |
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| 58 | (gdb) |
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| 59 | unable to read unknown load command 0x24 |
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| 60 | __cxa_get_globals () at ../src/cxa_exception_storage.cpp:75 |
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| 61 | 75 __cxa_eh_globals* retVal = __cxa_get_globals_fast (); |
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| 62 | (gdb) |
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| 63 | 78 if ( NULL == retVal ) { |
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| 64 | (gdb) |
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| 65 | 80 (std::calloc (1, sizeof (__cxa_eh_globals))); |
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| 66 | (gdb) |
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| 67 | 79 retVal = static_cast<__cxa_eh_globals*> |
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| 68 | (gdb) |
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| 69 | 81 if ( NULL == retVal ) |
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| 70 | (gdb) |
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| 71 | 83 if ( 0 != pthread_setspecific ( key_, retVal ) ) |
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| 72 | (gdb) |
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| 73 | 85 } |
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| 74 | (gdb) |
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| 75 | 86 return retVal; |
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| 76 | (gdb) |
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| 77 | 86 return retVal; |
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| 78 | (gdb) |
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| 79 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:223 |
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| 80 | 223 __cxa_eh_globals *globals = __cxa_get_globals(); |
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| 81 | (gdb) |
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| 82 | 224 __cxa_exception* exception_header = cxa_exception_from_thrown_object(thrown_object); |
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| 83 | (gdb) |
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| 84 | __cxxabiv1::cxa_exception_from_thrown_object (thrown_object=0x3001d0) at ../src/cxa_exception.cpp:47 |
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| 85 | 47 return static_cast<__cxa_exception*>(thrown_object) - 1; |
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| 86 | (gdb) |
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| 87 | 47 return static_cast<__cxa_exception*>(thrown_object) - 1; |
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| 88 | (gdb) |
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| 89 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:224 |
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| 90 | 224 __cxa_exception* exception_header = cxa_exception_from_thrown_object(thrown_object); |
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| 91 | (gdb) |
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| 92 | 226 exception_header->unexpectedHandler = std::get_unexpected(); |
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| 93 | (gdb) |
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| 94 | unable to read unknown load command 0x24 |
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| 95 | std::get_unexpected () at ../src/cxa_handlers.cpp:29 |
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| 96 | 29 return __sync_fetch_and_add(&__cxa_unexpected_handler, (unexpected_handler)0); |
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| 97 | (gdb) |
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| 98 | 29 return __sync_fetch_and_add(&__cxa_unexpected_handler, (unexpected_handler)0); |
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| 99 | (gdb) |
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| 100 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:226 |
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| 101 | 226 exception_header->unexpectedHandler = std::get_unexpected(); |
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| 102 | (gdb) |
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| 103 | 227 exception_header->terminateHandler = std::get_terminate(); |
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| 104 | (gdb) |
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| 105 | std::get_terminate () at ../src/cxa_handlers.cpp:54 |
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| 106 | 54 return __sync_fetch_and_add(&__cxa_terminate_handler, (terminate_handler)0); |
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| 107 | (gdb) |
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| 108 | 54 return __sync_fetch_and_add(&__cxa_terminate_handler, (terminate_handler)0); |
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| 109 | (gdb) |
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| 110 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:227 |
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| 111 | 227 exception_header->terminateHandler = std::get_terminate(); |
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| 112 | (gdb) |
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| 113 | 228 exception_header->exceptionType = tinfo; |
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| 114 | (gdb) |
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| 115 | 229 exception_header->exceptionDestructor = dest; |
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| 116 | (gdb) |
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| 117 | 230 setExceptionClass(&exception_header->unwindHeader); |
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| 118 | (gdb) |
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| 119 | __cxxabiv1::setExceptionClass (unwind_exception=0x3001b0) at ../src/cxa_exception.cpp:80 |
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| 120 | 80 unwind_exception->exception_class = kOurExceptionClass; |
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| 121 | (gdb) |
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| 122 | 81 } |
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| 123 | (gdb) |
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| 124 | __cxa_throw (thrown_object=0x3001d0, tinfo=0x270908, dest=0) at ../src/cxa_exception.cpp:231 |
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| 125 | 231 exception_header->referenceCount = 1; // This is a newly allocated exception, no need for thread safety. |
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| 126 | (gdb) |
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| 127 | 232 globals->uncaughtExceptions += 1; // Not atomically, since globals are thread-local |
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| 128 | (gdb) |
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| 129 | 234 exception_header->unwindHeader.exception_cleanup = exception_cleanup_func; |
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| 130 | (gdb) |
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| 131 | 238 _Unwind_RaiseException(&exception_header->unwindHeader); |
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| 132 | (gdb) |
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| 133 | |
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| 134 | |
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| 135 | |
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| 136 | |
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| 137 | |
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| 138 | 242 failed_throw(exception_header); |
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| 139 | (gdb) |
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| 140 | 242 failed_throw(exception_header); |
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| 141 | (gdb) |
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| 142 | __cxxabiv1::failed_throw (exception_header=0x300180) at ../src/cxa_exception.cpp:148 |
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| 143 | 148 (void) __cxa_begin_catch(&exception_header->unwindHeader); |
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| 144 | (gdb) |
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| 145 | __cxa_begin_catch (unwind_arg=0x3001b0) at ../src/cxa_exception.cpp:384 |
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| 146 | 384 _Unwind_Exception* unwind_exception = static_cast<_Unwind_Exception*>(unwind_arg); |
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| 147 | (gdb) |
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| 148 | 385 bool native_exception = isOurExceptionClass(unwind_exception); |
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| 149 | (gdb) |
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| 150 | __cxxabiv1::isOurExceptionClass (unwind_exception=0x3001b0) at ../src/cxa_exception.cpp:89 |
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| 151 | 89 return (unwind_exception->exception_class & get_vendor_and_language) == |
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| 152 | (gdb) |
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| 153 | 89 return (unwind_exception->exception_class & get_vendor_and_language) == |
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| 154 | (gdb) |
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| 155 | __cxa_begin_catch (unwind_arg=0x3001b0) at ../src/cxa_exception.cpp:386 |
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| 156 | 386 __cxa_eh_globals* globals = __cxa_get_globals(); |
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| 157 | (gdb) |
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| 158 | __cxa_get_globals () at ../src/cxa_exception_storage.cpp:75 |
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| 159 | 75 __cxa_eh_globals* retVal = __cxa_get_globals_fast (); |
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| 160 | (gdb) |
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| 161 | 78 if ( NULL == retVal ) { |
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| 162 | (gdb) |
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| 163 | 86 return retVal; |
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| 164 | (gdb) |
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| 165 | 86 return retVal; |
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| 166 | (gdb) |
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| 167 | __cxa_begin_catch (unwind_arg=0x3001b0) at ../src/cxa_exception.cpp:393 |
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| 168 | 393 static_cast<_Unwind_Exception*>(unwind_exception) |
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| 169 | (gdb) |
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| 170 | 391 cxa_exception_from_exception_unwind_exception |
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| 171 | (gdb) |
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| 172 | __cxxabiv1::cxa_exception_from_exception_unwind_exception (unwind_exception=0x3001b0) at ../src/cxa_exception.cpp:68 |
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| 173 | 68 return cxa_exception_from_thrown_object(unwind_exception + 1 ); |
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| 174 | (gdb) |
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| 175 | __cxxabiv1::cxa_exception_from_thrown_object (thrown_object=0x3001d0) at ../src/cxa_exception.cpp:47 |
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| 176 | 47 return static_cast<__cxa_exception*>(thrown_object) - 1; |
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| 177 | (gdb) |
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| 178 | 47 return static_cast<__cxa_exception*>(thrown_object) - 1; |
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| 179 | (gdb) |
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| 180 | __cxxabiv1::cxa_exception_from_exception_unwind_exception (unwind_exception=0x3001b0) at ../src/cxa_exception.cpp:68 |
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| 181 | 68 return cxa_exception_from_thrown_object(unwind_exception + 1 ); |
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| 182 | (gdb) |
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| 183 | __cxa_begin_catch (unwind_arg=0x3001b0) at ../src/cxa_exception.cpp:390 |
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| 184 | 390 __cxa_exception* exception_header = |
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| 185 | (gdb) |
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| 186 | 395 if (native_exception) |
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| 187 | (gdb) |
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| 188 | 398 exception_header->handlerCount = exception_header->handlerCount < 0 ? |
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| 189 | (gdb) |
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| 190 | 399 -exception_header->handlerCount + 1 : exception_header->handlerCount + 1; |
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| 191 | (gdb) |
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| 192 | 398 exception_header->handlerCount = exception_header->handlerCount < 0 ? |
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| 193 | (gdb) |
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| 194 | 402 if (exception_header != globals->caughtExceptions) |
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| 195 | (gdb) |
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| 196 | 404 exception_header->nextException = globals->caughtExceptions; |
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| 197 | (gdb) |
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| 198 | 405 globals->caughtExceptions = exception_header; |
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| 199 | (gdb) |
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| 200 | 406 } |
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| 201 | (gdb) |
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| 202 | 407 globals->uncaughtExceptions -= 1; // Not atomically, since globals are thread-local |
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| 203 | (gdb) |
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| 204 | 411 return exception_header->adjustedPtr; |
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| 205 | (gdb) |
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| 206 | 421 } |
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| 207 | (gdb) |
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| 208 | __cxxabiv1::failed_throw (exception_header=0x300180) at ../src/cxa_exception.cpp:149 |
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| 209 | 149 std::__terminate(exception_header->terminateHandler); |
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| 210 | (gdb) |
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| 211 | 149 std::__terminate(exception_header->terminateHandler); |
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| 212 | (gdb) |
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| 213 | unable to read unknown load command 0x24 |
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| 214 | std::__terminate (func=0x1ff210 <default_terminate_handler()>) at ../src/cxa_handlers.cpp:68 |
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| 215 | 68 func(); |
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| 216 | (gdb) |
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| 217 | default_terminate_handler () at ../src/cxa_default_handlers.cpp:29 |
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| 218 | 29 __cxa_eh_globals* globals = __cxa_get_globals_fast(); |
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| 219 | (gdb) |
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| 220 | 30 if (globals) |
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| 221 | (gdb) |
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| 222 | 32 __cxa_exception* exception_header = globals->caughtExceptions; |
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| 223 | (gdb) |
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| 224 | 34 if (exception_header) |
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| 225 | (gdb) |
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| 226 | 37 reinterpret_cast<_Unwind_Exception*>(exception_header + 1) - 1; |
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| 227 | (gdb) |
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| 228 | 36 _Unwind_Exception* unwind_exception = |
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| 229 | (gdb) |
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| 230 | 39 (unwind_exception->exception_class & get_vendor_and_language) == |
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| 231 | (gdb) |
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| 232 | 38 bool native_exception = |
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| 233 | (gdb) |
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| 234 | 41 if (native_exception) |
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| 235 | (gdb) |
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| 236 | 44 unwind_exception->exception_class == kOurDependentExceptionClass ? |
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| 237 | (gdb) |
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| 238 | 46 exception_header + 1; |
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| 239 | (gdb) |
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| 240 | 44 unwind_exception->exception_class == kOurDependentExceptionClass ? |
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| 241 | (gdb) |
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| 242 | 43 void* thrown_object = |
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| 243 | (gdb) |
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| 244 | 48 static_cast<const __shim_type_info*>(exception_header->exceptionType); |
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| 245 | (gdb) |
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| 246 | 47 const __shim_type_info* thrown_type = |
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| 247 | (gdb) |
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| 248 | 52 size_t len = sizeof(buf); |
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| 249 | (gdb) |
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| 250 | 53 const char* name = __cxa_demangle(thrown_type->name(), buf, &len, &status); |
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| 251 | (gdb) |
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| 252 | std::type_info::name () at typeinfo:97 |
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| 253 | 97 #ifndef _LIBCPP_NONUNIQUE_RTTI_BIT |
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| 254 | (gdb) |
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| 255 | unable to read unknown load command 0x24 |
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| 256 | |
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| 257 | Die: DW_TAG_<unknown> (abbrev = 104, offset = 280975) |
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| 258 | has children: FALSE |
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| 259 | attributes: |
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| 260 | DW_AT_type (DW_FORM_ref4) constant ref: 237932 (adjusted) |
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| 261 | warning: Got an error handling event: "Dwarf Error: Cannot find type of die [in module /usr/lib/libc++abi.dylib]". |
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| 262 | (gdb) |
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| 263 | unable to read unknown load command 0x24 |
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| 264 | |
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| 265 | Die: DW_TAG_<unknown> (abbrev = 104, offset = 280975) |
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| 266 | has children: FALSE |
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| 267 | attributes: |
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| 268 | DW_AT_type (DW_FORM_ref4) constant ref: 237932 (adjusted) |
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| 269 | Dwarf Error: Cannot find type of die [in module /usr/lib/libc++abi.dylib] |
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| 270 | (gdb) |
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| 271 | unable to read unknown load command 0x24 |
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| 272 | |
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| 273 | Die: DW_TAG_<unknown> (abbrev = 104, offset = 280975) |
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| 274 | has children: FALSE |
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| 275 | attributes: |
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| 276 | DW_AT_type (DW_FORM_ref4) constant ref: 237932 (adjusted) |
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| 277 | |
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| 278 | - that error repeat many times until |
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| 279 | |
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| 280 | (gdb) continue |
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| 281 | Continuing. |
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| 282 | libc++abi.dylib: terminating with uncaught exception of type char const* |
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| 283 | unable to read unknown load command 0x24 |
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| 284 | Die: DW_TAG_<unknown> (abbrev = 104, offset = 280975) |
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| 285 | has children: FALSE |
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| 286 | attributes: |
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| 287 | DW_AT_type (DW_FORM_ref4) constant ref: 237932 (adjusted) |
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