Attachment 150103 Details for Bug 232236 – test case contained in one source file

test case contained in one source file

ptrace-mt-exit-test.c (text/plain), 1.75 KB, created by Roland McGrath on 2007-03-15 00:14:54 UTC

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Creator: Roland McGrath

Created: 2007-03-15 00:14:54 UTC

Size: 1.75 KB

patch

obsolete

>#define _GNU_SOURCE
>#include <errno.h>
>#include <stdlib.h>
>#include <stdio.h>
>#include <sys/ptrace.h>
>#include <linux/ptrace.h>
>#include <sys/wait.h>
>#include <assert.h>
>#include <stdlib.h>
>#include <unistd.h>
>#include <pthread.h>
>#include <assert.h>
>#define PTRACE_O_TRACECLONE	0x00000008
>
>static void *
>thread_main(void *arg)
>{
>    while(1)
>      pause();
>
>    return NULL;
>}
>
>int
>main(int arc, char **argv)
>{
>    pid_t pid = fork();
>    assert(pid != -1);
>    if (pid == 0) {
>      long res;
>      pthread_t thread;
>      pthread_attr_t attr;
>
>      res = ptrace(PTRACE_TRACEME, 0, NULL, NULL);
>      if (res != 0)
>	assert_perror(errno);
>      raise(SIGUSR1);
>
>      res = pthread_attr_init(&attr);
>      assert(res == 0);
>      res = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
>      assert(res == 0);
>      res = pthread_create(&thread, &attr, thread_main, NULL);
>      assert(res == 0);
>      res = pthread_attr_destroy(&attr);
>      assert(res == 0);
>
>      return 0;
>    }
>
>    while (1) {
>        int status;
>        int tid = waitpid(-1, &status, __WALL);
>        if (tid == -1)
>            break;
>	printf("waitpid: %d -> %x\n", tid, status);
>        if (WIFEXITED(status))
>	  printf("Exited: %d\n", tid);
>        else if (WIFSTOPPED(status)) {
>            if (WSTOPSIG(status) == SIGUSR1) {
>                int res = ptrace(PTRACE_SETOPTIONS, tid, NULL, PTRACE_O_TRACECLONE);
>		if (res == -1)
>		  {
>		    if (tid == pid)
>		      assert_perror(errno);
>		    else if (errno != ESRCH)
>		      assert_perror(errno);
>		  }
>            }
>            long res = ptrace(PTRACE_CONT, tid, NULL, (void *)0);
>	    if (res == -1)
>	      {
>		if (tid == pid)
>		  assert_perror(errno);
>		else if (errno != ESRCH)
>		  assert_perror(errno);
>	      }
>        }
>    }
>
>    return 0;
>}

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Attachments on bug 232236: 150042 | 150103 | 150106