compilation error while building simple stack backtrace program on freebsd

[krnaidu]

Hi folks,

I am trying to build a sample stackback trace program for knowing the backtrace of a function flow.

please let me know am i missing anything here.

since i am new to FreeBSD, i am not able to find the error cause for this compilation error.

your help will me much appreciated .

here is my code and gcc commands i have used

================================================== ======

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

/* Obtain a backtrace and print it to stdout. */
void
print_trace (void)
{
void *array[10];
size_t size;
char **strings;
size_t i;

size = backtrace (array, 10);
strings = backtrace_symbols (array, size);

printf ("Obtained %zd stack frames.\n", size);

for (i = 0; i < size; i++)
printf ("%s\n", strings[i]);

free (strings);
}

/* A dummy function to make the backtrace more interesting. */
void
dummy_function (void)
{
print_trace ();
}

int
main (void)
{
dummy_function ();
return 0;
}
=================================================
if i use below gcc command i am getting the error as below

#gcc back_trace.c -o bt -g -lexecinfo -I /usr/local/include
/usr/bin/ld: cannot find -lexecinfo


if i use this gcc the error is different.
#gcc back_trace.c -o bt -g -I /usr/local/include
/var/tmp//cc2E2nn3.o(.text+0x10): In function `print_trace':
/var/krnaidu/my_sample/back_trace.c:15: undefined reference to `backtrace'
/var/tmp//cc2E2nn3.o(.text+0x25):/var/krnaidu/my_sample/back_trace.c:16: undefined reference to `backtrace_symbols'


please let me know which command is correct and how to solve this issue.

Thanks in advance.

--KR.

[Rubberman]

Ok. First, this is a LINUX kernel forum - BSD kernels are NOT Linux kernels. So, try going to a BSD support forum for this information. It will likely be very different from what you need to do in Linux.