diff options
Diffstat (limited to 'nptl/tst-context1.c')
| -rw-r--r-- | nptl/tst-context1.c | 205 |
1 files changed, 0 insertions, 205 deletions
diff --git a/nptl/tst-context1.c b/nptl/tst-context1.c deleted file mode 100644 index eaccd9e88f..0000000000 --- a/nptl/tst-context1.c +++ /dev/null @@ -1,205 +0,0 @@ -/* Copyright (C) 2003-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <error.h> -#include <limits.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <ucontext.h> - -#define N 4 -#if __WORDSIZE == 64 -#define GUARD_PATTERN 0xdeadbeafdeadbeaf -#else -#define GUARD_PATTERN 0xdeadbeaf -#endif - -typedef struct { - ucontext_t uctx; - unsigned long guard[3]; - } tst_context_t; - -static char stacks[N][2 * PTHREAD_STACK_MIN]; -static tst_context_t ctx[N][2]; -static volatile int failures; - - -static void -fct (long int n) -{ - char on_stack[1]; - - /* Just to use the thread local descriptor. */ - printf ("%ld: in %s now, on_stack = %p\n", n, __FUNCTION__, on_stack); - errno = 0; - - if (ctx[n][1].uctx.uc_link != &ctx[n][0].uctx) - { - printf ("context[%ld][1] uc_link damaged, = %p\n", n, - ctx[n][1].uctx.uc_link); - exit (1); - } - - if ((ctx[n][0].guard[0] != GUARD_PATTERN) - || (ctx[n][0].guard[1] != GUARD_PATTERN) - || (ctx[n][0].guard[2] != GUARD_PATTERN)) - { - printf ("%ld: %s context[0] overflow detected!\n", n, __FUNCTION__); - ++failures; - } - - if ((ctx[n][1].guard[0] != GUARD_PATTERN) - || (ctx[n][1].guard[1] != GUARD_PATTERN) - || (ctx[n][1].guard[2] != GUARD_PATTERN)) - { - printf ("%ld: %s context[1] overflow detected!\n", n, __FUNCTION__); - ++failures; - } - - if (n < 0 || n >= N) - { - printf ("%ld out of range\n", n); - exit (1); - } - - if (on_stack < stacks[n] || on_stack >= stacks[n] + sizeof (stacks[0])) - { - printf ("%ld: on_stack not on appropriate stack\n", n); - exit (1); - } -} - - -static void * -tf (void *arg) -{ - int n = (int) (long int) arg; - - ctx[n][0].guard[0] = GUARD_PATTERN; - ctx[n][0].guard[1] = GUARD_PATTERN; - ctx[n][0].guard[2] = GUARD_PATTERN; - - ctx[n][1].guard[0] = GUARD_PATTERN; - ctx[n][1].guard[1] = GUARD_PATTERN; - ctx[n][1].guard[2] = GUARD_PATTERN; - - if (getcontext (&ctx[n][1].uctx) != 0) - { - printf ("%d: cannot get context: %m\n", n); - exit (1); - } - - printf ("%d: %s: before makecontext\n", n, __FUNCTION__); - - ctx[n][1].uctx.uc_stack.ss_sp = stacks[n]; - ctx[n][1].uctx.uc_stack.ss_size = sizeof (stacks[n]); - ctx[n][1].uctx.uc_link = &ctx[n][0].uctx; - makecontext (&ctx[n][1].uctx, (void (*) (void)) fct, 1, (long int) n); - - printf ("%d: %s: before swapcontext\n", n, __FUNCTION__); - - if (swapcontext (&ctx[n][0].uctx, &ctx[n][1].uctx) != 0) - { - ++failures; - printf ("%d: %s: swapcontext failed\n", n, __FUNCTION__); - } - else - printf ("%d: back in %s\n", n, __FUNCTION__); - - return NULL; -} - - -static volatile int global; - - -static int -do_test (void) -{ - int n; - pthread_t th[N]; - ucontext_t mctx; - - puts ("making contexts"); - if (getcontext (&mctx) != 0) - { - if (errno == ENOSYS) - { - puts ("context handling not supported"); - exit (0); - } - - printf ("%s: getcontext: %m\n", __FUNCTION__); - exit (1); - } - - /* Play some tricks with this context. */ - if (++global == 1) - if (setcontext (&mctx) != 0) - { - puts ("setcontext failed"); - exit (1); - } - if (global != 2) - { - puts ("global not incremented twice"); - exit (1); - } - puts ("global OK"); - - pthread_attr_t at; - - if (pthread_attr_init (&at) != 0) - { - puts ("attr_init failed"); - return 1; - } - - if (pthread_attr_setstacksize (&at, 1 * 1024 * 1024) != 0) - { - puts ("attr_setstacksize failed"); - return 1; - } - - for (n = 0; n < N; ++n) - if (pthread_create (&th[n], &at, tf, (void *) (long int) n) != 0) - { - puts ("create failed"); - exit (1); - } - - if (pthread_attr_destroy (&at) != 0) - { - puts ("attr_destroy failed"); - return 1; - } - - for (n = 0; n < N; ++n) - if (pthread_join (th[n], NULL) != 0) - { - puts ("join failed"); - exit (1); - } - - return failures; -} - -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |