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