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Update.
* locale/programs/locale.c (write_locales): Disable implicit locking for the stream. Use feof_unlocked instead of feof.
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@ -1,5 +1,8 @@
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2001-07-23 Ulrich Drepper <drepper@redhat.com>
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* locale/programs/locale.c (write_locales): Disable implicit
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locking for the stream. Use feof_unlocked instead of feof.
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* sysdeps/unix/sysv/linux/i386/makecontext.S: Initialize %fs, %gs,
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and floating-point status as well.
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@ -1,5 +1,8 @@
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2001-07-23 Ulrich Drepper <drepper@redhat.com>
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* Makefile (tests): Add tst-context.
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* tst-context.c: New file.
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* sysdeps/pthread/bits/stdio-lock.h: Define
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_IO_cleanup_region_start_noarg.
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98
linuxthreads/tst-context.c
Normal file
98
linuxthreads/tst-context.c
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#include <errno.h>
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#include <error.h>
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <ucontext.h>
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#include "pt-machine.h"
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#define N 4
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#ifdef FLOATING_STACKS
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static char stacks[N][8192];
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static ucontext_t ctx[N][2];
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static volatile int failures;
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static void
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fct (long int n)
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{
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/* Just to use the thread local descriptor. */
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printf ("%ld: in %s now\n", n, __FUNCTION__);
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errno = 0;
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}
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static void *
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threadfct (void *arg)
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{
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int n = (int) (long int) arg;
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printf ("%d: %s: before makecontext\n", n, __FUNCTION__);
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ctx[n][1].uc_stack.ss_sp = stacks[n];
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ctx[n][1].uc_stack.ss_size = 8192;
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ctx[n][1].uc_link = &ctx[n][0];
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makecontext (&ctx[n][1], (void (*) (void)) fct, 1, (long int) n);
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printf ("%d: %s: before swapcontext\n", n, __FUNCTION__);
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if (swapcontext (&ctx[n][0], &ctx[n][1]) != 0)
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{
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++failures;
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printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__);
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}
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else
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printf ("%d: back in %s\n", n, __FUNCTION__);
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return NULL;
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}
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#endif
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static volatile int global;
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int
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main (void)
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{
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#ifndef FLOATING_STACKS
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puts ("not supported");
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return 0;
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#else
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int n;
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pthread_t th[N];
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ucontext_t mctx;
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puts ("making contexts");
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if (getcontext (&mctx) != 0)
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{
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if (errno == ENOSYS)
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exit (0);
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printf ("%s: getcontext: %m\n", __FUNCTION__);
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exit (1);
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}
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/* Play some tricks with this context. */
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if (++global == 1)
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if (setcontext (&mctx) != 0)
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{
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printf ("%s: setcontext: %m\n", __FUNCTION__);
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exit (1);
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}
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if (global != 2)
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{
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printf ("%s: 'global' not incremented twice\n", __FUNCTION__);
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exit (1);
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}
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for (n = 0; n < N; ++n)
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if (pthread_create (&th[n], NULL, threadfct, (void *) n) != 0)
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error (EXIT_FAILURE, errno, "cannot create all threads");
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for (n = 0; n < N; ++n)
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pthread_join (th[n], NULL);
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return failures;
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#endif
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}
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@ -34,6 +34,7 @@
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#include <locale.h>
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#include <search.h>
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#include <stdio.h>
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#include <stdio_ext.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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@ -364,7 +365,10 @@ write_locales (void)
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/* Ignore non-existing files. */
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continue;
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while (! feof (fp))
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/* No threads present. */
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__fsetlocking (fp, FSETLOCKING_BYCALLER);
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while (! feof_unlocked (fp))
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{
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/* It is a reasonable approach to use a fix buffer here
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because
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