Attachment 297069 Details for Bug 435337 – Oddity

Oddity

sticky-stacker.c (text/plain), 1.47 KB, created by Gary Benson on 2008-03-06 16:32:00 UTC

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Filename:

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Creator: Gary Benson

Created: 2008-03-06 16:32:00 UTC

Size: 1.47 KB

patch

obsolete

>#include <stdio.h>
>#include <stdlib.h>
>#include <pthread.h>
>#include <signal.h>
>#include <unistd.h>
>
>void fatal1(char *fmt, int res)
>{
>  fprintf(stderr, fmt, res);
>  fprintf(stderr, "\n");
>  exit(1);
>}
>
>void *threadmain(void *arg)
>{
>  size_t requested = (size_t) arg;
>  pthread_attr_t attr;
>  void *stack_bottom;
>  size_t stack_size;
>  int res;
>
>  res = pthread_getattr_np(pthread_self(), &attr);
>  if (res != 0) {
>    fatal1("pthread_getattr_np failed with errno = %d", res);
>  }
>
>  res = pthread_attr_getstack(&attr, &stack_bottom, &stack_size);
>  if (res != 0) {
>    fatal1("pthread_attr_getstack failed with errno = %d", res);
>  }
>
>  printf("Requested %d, got %d\n", requested, stack_size);
>  return NULL;
>}
>
>void test(size_t stacksize)
>{
>  pthread_attr_t attr;
>  pthread_t tid;
>  int res, arg;
>
>  res = pthread_attr_init(&attr);
>  if (res != 0) {
>    fatal1("pthread_attr_init failed with errno = %d", res);
>  }
>
>  res = pthread_attr_setstacksize(&attr, stacksize);
>  if (res != 0) {
>    fatal1("pthread_attr_setstacksize failed with errno = %d", res);
>  }
>
>  res = pthread_create(&tid, &attr, threadmain, (void *) stacksize);
>  if (res != 0) {
>    fatal1("pthread_create failed with errno = %d", res);
>  }
>
>  res = pthread_join(tid, NULL);
>  if (res != 0) {
>    fatal1("pthread_join failed with errno = %d", res);
>  }
>
>  pthread_attr_destroy(&attr);
>}
>
>int main(int argc, char *argv[])
>{
>  size_t page_size = sysconf(_SC_PAGESIZE);
>  int i;
>
>  for (i = -3; i < 4; i++)
>    test((128 + i) * page_size);
>}

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Attachments on bug 435337: 297069