diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/tst-getpid1.c')
-rw-r--r-- | sysdeps/unix/sysv/linux/tst-getpid1.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/tst-getpid1.c b/sysdeps/unix/sysv/linux/tst-getpid1.c new file mode 100644 index 0000000000..253ebf2e15 --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-getpid1.c @@ -0,0 +1,122 @@ +#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" |