http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51906
--- Comment #18 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-01-29 15:30:12 UTC --- Here is a single stepping through 30_threads/try_lock/3.cc at -m64... (gdb) break main Breakpoint 1 at 0x100000cd0: file /sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120126/libstdc++-v3/testsuite/30_threads/try_lock/3.cc, line 64. (gdb) r Starting program: /sw/src/fink.build/gcc47-4.7.0-1/darwin_objdir/x86_64-apple-darwin11.2.0/libstdc++-v3/testsuite/3.exe Reading symbols for shared libraries ++++........................ done Breakpoint 1, main () at /sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120126/libstdc++-v3/testsuite/30_threads/try_lock/3.cc:64 64 std::recursive_mutex m2; (gdb) s 63 std::mutex m1; (gdb) 64 std::recursive_mutex m2; (gdb) 63 std::mutex m1; (gdb) 64 std::recursive_mutex m2; (gdb) 755 return __gthrw_(pthread_mutex_trylock) (__mutex); (gdb) 64 std::recursive_mutex m2; (gdb) 755 return __gthrw_(pthread_mutex_trylock) (__mutex); (gdb) 0x0000000100000e5a in dyld_stub_pthread_mutex_trylock () (gdb) Single stepping until exit from function dyld_stub_pthread_mutex_trylock, which has no line number information. main () at mutex:679 679 if (__lock.owns_lock()) (gdb) 755 return __gthrw_(pthread_mutex_trylock) (__mutex); (gdb) 0x0000000100000e5a in dyld_stub_pthread_mutex_trylock () (gdb) Single stepping until exit from function dyld_stub_pthread_mutex_trylock, which has no line number information. 0x00007fff8dde0bfb in pthread_mutex_trylock () (gdb) Single stepping until exit from function pthread_mutex_trylock, which has no line number information. main () at mutex:679 679 if (__lock.owns_lock()) (gdb) 776 return __gthrw_(pthread_mutex_unlock) (__mutex); (gdb) 0x0000000100000e60 in dyld_stub_pthread_mutex_unlock () (gdb) Single stepping until exit from function dyld_stub_pthread_mutex_unlock, which has no line number information. main () at /sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120126/libstdc++-v3/testsuite/30_threads/try_lock/3.cc:71 71 VERIFY( result == -1 ); (gdb) 0x0000000100000e42 in dyld_stub___assert_rtn () (gdb) Single stepping until exit from function dyld_stub___assert_rtn, which has no line number information. Assertion failed: (result == -1), function main, file /sw/src/fink.build/gcc47-4.7.0-1/gcc-4.7-20120126/libstdc++-v3/testsuite/30_threads/try_lock/3.cc, line 71. Program received signal SIGABRT, Aborted. 0x00007fff927c182a in __kill () (gdb)
