如何在程序崩溃时自动生成 stacktrace

#include <stdio.h>
#include <execinfo.h>
#include <signal.h>
#include <stdlib.h>
#include <unistd.h>

void handler(int sig)
{
    void *array[10];
    size_t size;

    // get void*'s for all entries on the stack
    size = backtrace(array, 10);

    // print out all the frames to stderr
    fprintf(stderr, "Error: signal %d:\n", sig);
    backtrace_symbols_fd(array, size, STDERR_FILENO);
    exit(1);
}

void baz()
{
    int *foo = (int*)-1; // make a bad pointer
    printf("%d\n", *foo); // causes segfault
}

void bar() { baz(); }
void foo() { bar(); }

int main(int argc, char **argv)
{
  signal(SIGSEGV, handler); /// install our handler
  foo(); // this will call foo, bar, and baz.  baz segfaults.
}

$ ./test
Error: signal 11:
./test(handler+0x19)[0x400911]
/lib64/tls/libc.so.6[0x3a9b92e380]
./test(baz+0x14)[0x400962]
./test(bar+0xe)[0x400983]
./test(foo+0xe)[0x400993]
./test(main+0x28)[0x4009bd]
/lib64/tls/libc.so.6(__libc_start_main+0xdb)[0x3a9b91c4bb]
./test[0x40086a]