mirror of
git://sourceware.org/git/glibc.git
synced 2024-11-21 01:12:26 +08:00
b119507013
1999-02-14 Andreas Jaeger <aj@arthur.rhein-neckar.de> * stdio-common/Makefile (tests): tllformat added. * stdio-common/tllformat.c: New program, based on tiformat.c with examples from Franz Sirl <Franz.Sirl-kernel@lauterbach.com>. 1999-02-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de> * posix/test-vfork.c: Fix exit status test. 1999-02-14 Andreas Jaeger <aj@arthur.rhein-neckar.de> * sysdeps/unix/sysv/linux/sa_len.c (__libc_sa_len): Add some missing cases. Reported by Craig Metz <cmetz@inner.net> [PR libc/964]. 1999-02-14 Andreas Schwab <schwab@issan.cs.uni-dortmund.de>
41 lines
725 B
C
41 lines
725 B
C
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <error.h>
|
|
#include <errno.h>
|
|
#include <sys/wait.h>
|
|
|
|
void noop (void);
|
|
|
|
#define NR 2 /* Exit code of the child. */
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
pid_t pid;
|
|
int status;
|
|
|
|
printf ("Before vfork\n");
|
|
fflush (stdout);
|
|
pid = vfork ();
|
|
if (pid == 0)
|
|
{
|
|
/* This will clobber the return pc from vfork in the parent on
|
|
machines where it is stored on the stack, if vfork wasn't
|
|
implemented correctly, */
|
|
noop ();
|
|
_exit (NR);
|
|
}
|
|
else if (pid < 0)
|
|
error (1, errno, "vfork");
|
|
printf ("After vfork (parent)\n");
|
|
if (waitpid (0, &status, 0) != pid
|
|
|| !WIFEXITED (status) || WEXITSTATUS (status) != NR)
|
|
exit (1);
|
|
exit (0);
|
|
}
|
|
|
|
void
|
|
noop ()
|
|
{
|
|
}
|