library/cpp/terminate_handler/segv_handler.cpp


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#include <util/system/platform.h> 
#include <util/system/yassert.h> 
#include <util/stream/output.h> 
#include <util/system/backtrace.h> 
 
#ifdef _unix_ 
#include <signal.h> 
#include <errno.h> 
#include <stdlib.h> 
#include <unistd.h>
#endif 
 
#include "segv_handler.h" 
 
#ifndef _win_ 
static void SegvHandler(int sig) { 
    Y_UNUSED(sig);
    const char msg[] = "Got SEGV\n"; 
    Y_UNUSED(write(STDERR_FILENO, msg, sizeof(msg)));
    //PrintBackTrace(); 
    sig_t r = signal(SIGSEGV, SIG_DFL); 
    if (r == SIG_ERR) { 
        abort(); 
    } 
    // returning back and failing 
} 
#endif // !_win_ 
 
void InstallSegvHandler() { 
#ifndef _win_ 
    sig_t r = signal(SIGSEGV, &SegvHandler); 
    Y_VERIFY(r != SIG_ERR, "signal failed: %s", strerror(errno));
#endif // !_win_ 
}