printing call stack on assert and segfaults

test.c

#include <assert.h>
#include <signal.h>
#include <stdio.h>
#include <execinfo.h>

/*
compile this program like this:

gcc -Wall -O0 -g -fsanitize=address -fno-omit-frame-pointer -finstrument-functions test.c -o test

on the assert error, you will see this output:

test: test.c:58: bar: Assertion `0' failed.
    #0 0x7fb58685ef75 in __sanitizer_print_stack_trace ../../../../src/libsanitizer/asan/asan_stack.cpp:86
    #1 0x55ad780281e7 in on_abort /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:52
    #2 0x7fb586620d5f  (/lib/x86_64-linux-gnu/libc.so.6+0x3bd5f)
    #3 0x7fb586620ce0 in __libc_signal_restore_set ../sysdeps/unix/sysv/linux/internal-signals.h:86
    #4 0x7fb586620ce0 in __GI_raise ../sysdeps/unix/sysv/linux/raise.c:48
    #5 0x7fb58660a536 in __GI_abort stdlib/abort.c:79
    #6 0x7fb58660a40e in __assert_fail_base assert/assert.c:92
    #7 0x7fb586619661 in __GI___assert_fail assert/assert.c:101
    #8 0x55ad78028247 in bar /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:58
    #9 0x55ad78028268 in foo /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:62
    #10 0x55ad780282bc in main /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:68
    #11 0x7fb58660bd09 in __libc_start_main ../csu/libc-start.c:308
    #12 0x55ad78028109 in _start (/home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test+0x1109)

and on the segfault (line 57), you will see this output:

AddressSanitizer:DEADLYSIGNAL
=================================================================
==603575==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc 0x5602c663026d bp 0x7ffcec0c75b0 sp 0x7ffcec0c75b0 T0)
==603575==The signal is caused by a WRITE memory access.
==603575==Hint: address points to the zero page.
    #0 0x5602c663026d in bar /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:57
    #1 0x5602c66302b4 in foo /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:62
    #2 0x5602c6630308 in main /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:68
    #3 0x7f2968670d09 in __libc_start_main ../csu/libc-start.c:308
    #4 0x5602c6630119 in _start (/home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test+0x1119)

AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV /home/frank/data/projects/vouch/github/digital-key-device-sdk/core/test.c:57 in bar
==603575==ABORTING

*/

extern void __sanitizer_print_stack_trace(void);


void on_abort(int signum)
{
    __sanitizer_print_stack_trace();
      signal(signum, SIG_DFL);
}

void bar() {
    // *((char*) NULL) = 0;
    assert(0);
}

void foo() {
    bar();
}


int main(int argc, char** argv) {
    signal(SIGABRT, &on_abort);
    foo();
    return 0;
}