mirror of
https://github.com/tobast/libunwind-eh_elf.git
synced 2024-11-22 23:47:39 +01:00
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/* libunwind - a platform-independent unwind library
|
|
Copyright (C) 2004 Hewlett-Packard Co
|
|
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining
|
|
a copy of this software and associated documentation files (the
|
|
"Software"), to deal in the Software without restriction, including
|
|
without limitation the rights to use, copy, modify, merge, publish,
|
|
distribute, sublicense, and/or sell copies of the Software, and to
|
|
permit persons to whom the Software is furnished to do so, subject to
|
|
the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
|
|
LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
#include <sys/time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/wait.h>
|
|
|
|
int
|
|
main (int argc, char **argv, char **envp)
|
|
{
|
|
char *program, **child_argv;
|
|
struct timeval start, stop;
|
|
double secs;
|
|
int status, i;
|
|
long count;
|
|
pid_t pid;
|
|
|
|
count = atol (argv[1]);
|
|
program = argv[2];
|
|
|
|
child_argv = alloca ((argc - 1) * sizeof (char *));
|
|
for (i = 0; i < argc - 2; ++i)
|
|
child_argv[i] = argv[2 + i];
|
|
child_argv[i] = NULL;
|
|
|
|
gettimeofday (&start, NULL);
|
|
for (i = 0; i < count; ++i)
|
|
{
|
|
pid = fork ();
|
|
if (pid == 0)
|
|
{
|
|
execve (program, child_argv, envp);
|
|
_exit (-1);
|
|
}
|
|
else
|
|
{
|
|
waitpid (pid, &status, 0);
|
|
if (!WIFEXITED (status) || WEXITSTATUS (status) != 0)
|
|
{
|
|
fprintf (stderr, "%s: child failed\n", argv[0]);
|
|
exit (-1);
|
|
}
|
|
}
|
|
}
|
|
gettimeofday (&stop, NULL);
|
|
|
|
secs = ((stop.tv_sec + 1e-6 * stop.tv_usec)
|
|
- (start.tv_sec + 1e-6 * start.tv_usec));
|
|
printf ("%lu nsec/execution\n",
|
|
(unsigned long) (1e9 * secs / (double) count));
|
|
return 0;
|
|
}
|