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glibc/sysdeps/unix/sysv/linux/tst-getpid1.c
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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" |