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[Support] revert previous commit r270643

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@270670 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Gerolf Hoflehner 2016-05-25 05:51:05 +00:00
parent 4f4018ce2c
commit 9f618c8791
1 changed files with 39 additions and 0 deletions
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39
lib/Support/Unix/Signals.inc
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@ -490,3 +490,42 @@ void llvm::sys::PrintStackTraceOnErrorSignal(bool DisableCrashReporting) {
}
#endif
}
/***/
// On Darwin, raise sends a signal to the main thread instead of the current
// thread. This has the unfortunate effect that assert() and abort() will end up
// bypassing our crash recovery attempts. We work around this for anything in
// the same linkage unit by just defining our own versions of the assert handler
// and abort.
#if defined(__APPLE__) && defined(ENABLE_CRASH_OVERRIDES)
#include <signal.h>
#include <pthread.h>
int raise(int sig) {
return pthread_kill(pthread_self(), sig);
}
void __assert_rtn(const char *func,
const char *file,
int line,
const char *expr) {
if (func)
fprintf(stderr, "Assertion failed: (%s), function %s, file %s, line %d.\n",
expr, func, file, line);
else
fprintf(stderr, "Assertion failed: (%s), file %s, line %d.\n",
expr, file, line);
abort();
}
void abort() {
raise(SIGABRT);
usleep(1000);
__builtin_trap();
}
#endif