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Diffstat (limited to 'elf/tst-tls-manydynamic.c')
-rw-r--r-- | elf/tst-tls-manydynamic.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/elf/tst-tls-manydynamic.c b/elf/tst-tls-manydynamic.c deleted file mode 100644 index b072d0be68..0000000000 --- a/elf/tst-tls-manydynamic.c +++ /dev/null @@ -1,151 +0,0 @@ -/* Test with many dynamic TLS variables. - Copyright (C) 2016-2017 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - 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/>. */ - -/* This test intends to exercise dynamic TLS variable allocation. It - achieves this by combining dlopen (to avoid static TLS allocation - after static TLS resizing), many DSOs with a large variable (to - exceed the static TLS reserve), and an already-running thread (to - force full dynamic TLS initialization). */ - -#include "tst-tls-manydynamic.h" - -#include <errno.h> -#include <dlfcn.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -static int do_test (void); -#include <support/xthread.h> -#include <support/test-driver.c> - -void *handles[COUNT]; -set_value_func set_value_funcs[COUNT]; -get_value_func get_value_funcs[COUNT]; - -static void -init_functions (void) -{ - for (int i = 0; i < COUNT; ++i) - { - /* Open the module. */ - { - char soname[100]; - snprintf (soname, sizeof (soname), "tst-tls-manydynamic%02dmod.so", i); - handles[i] = dlopen (soname, RTLD_LAZY); - if (handles[i] == NULL) - { - printf ("error: dlopen failed: %s\n", dlerror ()); - exit (1); - } - } - - /* Obtain the setter function. */ - { - char fname[100]; - snprintf (fname, sizeof (fname), "set_value_%02d", i); - void *func = dlsym (handles[i], fname); - if (func == NULL) - { - printf ("error: dlsym: %s\n", dlerror ()); - exit (1); - } - set_value_funcs[i] = func; - } - - /* Obtain the getter function. */ - { - char fname[100]; - snprintf (fname, sizeof (fname), "get_value_%02d", i); - void *func = dlsym (handles[i], fname); - if (func == NULL) - { - printf ("error: dlsym: %s\n", dlerror ()); - exit (1); - } - get_value_funcs[i] = func; - } - } -} - -static pthread_barrier_t barrier; - -/* Running thread which forces real TLS initialization. */ -static void * -blocked_thread_func (void *closure) -{ - xpthread_barrier_wait (&barrier); - - /* TLS test runs here in the main thread. */ - - xpthread_barrier_wait (&barrier); - return NULL; -} - -static int -do_test (void) -{ - { - int ret = pthread_barrier_init (&barrier, NULL, 2); - if (ret != 0) - { - errno = ret; - printf ("error: pthread_barrier_init: %m\n"); - exit (1); - } - } - - pthread_t blocked_thread = xpthread_create (NULL, blocked_thread_func, NULL); - xpthread_barrier_wait (&barrier); - - init_functions (); - - struct value values[COUNT]; - /* Initialze the TLS variables. */ - for (int i = 0; i < COUNT; ++i) - { - for (int j = 0; j < PER_VALUE_COUNT; ++j) - values[i].num[j] = rand (); - set_value_funcs[i] (&values[i]); - } - - /* Read back their values to check that they do not overlap. */ - for (int i = 0; i < COUNT; ++i) - { - struct value actual; - get_value_funcs[i] (&actual); - - for (int j = 0; j < PER_VALUE_COUNT; ++j) - if (actual.num[j] != values[i].num[j]) - { - printf ("error: mismatch at variable %d/%d: %d != %d\n", - i, j, actual.num[j], values[i].num[j]); - exit (1); - } - } - - xpthread_barrier_wait (&barrier); - xpthread_join (blocked_thread); - - /* Close the modules. */ - for (int i = 0; i < COUNT; ++i) - dlclose (handles[i]); - - return 0; -} |