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#include <sched.h>
#include <signal.h>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <stackinfo.h>
#ifndef TEST_CLONE_FLAGS
#define TEST_CLONE_FLAGS 0
#endif
static int sig;
static int
f (void *a)
{
puts ("in f");
union sigval sival;
sival.sival_int = getpid ();
printf ("pid = %d\n", sival.sival_int);
if (sigqueue (getppid (), sig, sival) != 0)
return 1;
return 0;
}
static int
do_test (void)
{
int mypid = getpid ();
sig = SIGRTMIN;
sigset_t ss;
sigemptyset (&ss);
sigaddset (&ss, sig);
if (sigprocmask (SIG_BLOCK, &ss, NULL) != 0)
{
printf ("sigprocmask failed: %m\n");
return 1;
}
#ifdef __ia64__
extern int __clone2 (int (*__fn) (void *__arg), void *__child_stack_base,
size_t __child_stack_size, int __flags,
void *__arg, ...);
char st[256 * 1024] __attribute__ ((aligned));
pid_t p = __clone2 (f, st, sizeof (st), TEST_CLONE_FLAGS, 0);
#else
char st[128 * 1024] __attribute__ ((aligned));
# if _STACK_GROWS_DOWN
pid_t p = clone (f, st + sizeof (st), TEST_CLONE_FLAGS, 0);
# elif _STACK_GROWS_UP
pid_t p = clone (f, st, TEST_CLONE_FLAGS, 0);
# else
# error "Define either _STACK_GROWS_DOWN or _STACK_GROWS_UP"
# endif
#endif
if (p == -1)
{
printf("clone failed: %m\n");
return 1;
}
printf ("new thread: %d\n", (int) p);
siginfo_t si;
do
if (sigwaitinfo (&ss, &si) < 0)
{
printf("sigwaitinfo failed: %m\n");
kill (p, SIGKILL);
return 1;
}
while (si.si_signo != sig || si.si_code != SI_QUEUE);
int e;
if (waitpid (p, &e, __WCLONE) != p)
{
puts ("waitpid failed");
kill (p, SIGKILL);
return 1;
}
if (!WIFEXITED (e))
{
if (WIFSIGNALED (e))
printf ("died from signal %s\n", strsignal (WTERMSIG (e)));
else
puts ("did not terminate correctly");
return 1;
}
if (WEXITSTATUS (e) != 0)
{
printf ("exit code %d\n", WEXITSTATUS (e));
return 1;
}
if (si.si_int != (int) p)
{
printf ("expected PID %d, got si_int %d\n", (int) p, si.si_int);
kill (p, SIGKILL);
return 1;
}
if (si.si_pid != p)
{
printf ("expected PID %d, got si_pid %d\n", (int) p, (int) si.si_pid);
kill (p, SIGKILL);
return 1;
}
if (getpid () != mypid)
{
puts ("my PID changed");
return 1;
}
return 0;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
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