mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 04:50:07 +00:00
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
/* Test for large alignment in TLS blocks, BZ#18383.
|
|
Copyright (C) 2015-2024 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
static __thread int tdata1 = 1;
|
|
static __thread int tdata2 __attribute__ ((aligned (0x10))) = 2;
|
|
static __thread int tdata3 __attribute__ ((aligned (0x1000))) = 4;
|
|
static __thread int tbss1;
|
|
static __thread int tbss2 __attribute__ ((aligned (0x10)));
|
|
static __thread int tbss3 __attribute__ ((aligned (0x1000)));
|
|
|
|
#ifndef NO_LIB
|
|
extern __thread int mod_tdata1;
|
|
extern __thread int mod_tdata2;
|
|
extern __thread int mod_tdata3;
|
|
extern __thread int mod_tbss1;
|
|
extern __thread int mod_tbss2;
|
|
extern __thread int mod_tbss3;
|
|
#endif
|
|
|
|
static int
|
|
test_one (const char *which, unsigned int alignment, int *var, int value)
|
|
{
|
|
uintptr_t addr = (uintptr_t) var;
|
|
unsigned int misalign = addr & (alignment - 1);
|
|
|
|
printf ("%s TLS address %p %% %u = %u\n",
|
|
which, (void *) var, alignment, misalign);
|
|
|
|
int got = *var;
|
|
if (got != value)
|
|
{
|
|
printf ("%s value %d should be %d\n", which, got, value);
|
|
return 1;
|
|
}
|
|
|
|
return misalign != 0;
|
|
}
|
|
|
|
static int
|
|
do_test (void)
|
|
{
|
|
int fail = 0;
|
|
|
|
fail |= test_one ("tdata1", 4, &tdata1, 1);
|
|
fail |= test_one ("tdata2", 0x10, &tdata2, 2);
|
|
fail |= test_one ("tdata3", 0x1000, &tdata3, 4);
|
|
|
|
fail |= test_one ("tbss1", 4, &tbss1, 0);
|
|
fail |= test_one ("tbss2", 0x10, &tbss2, 0);
|
|
fail |= test_one ("tbss3", 0x1000, &tbss3, 0);
|
|
|
|
#ifndef NO_LIB
|
|
fail |= test_one ("mod_tdata1", 4, &mod_tdata1, 1);
|
|
fail |= test_one ("mod_tdata2", 0x10, &mod_tdata2, 2);
|
|
fail |= test_one ("mod_tdata3", 0x1000, &mod_tdata3, 4);
|
|
|
|
fail |= test_one ("mod_tbss1", 4, &mod_tbss1, 0);
|
|
fail |= test_one ("mod_tbss2", 0x10, &mod_tbss2, 0);
|
|
fail |= test_one ("mod_tbss3", 0x1000, &mod_tbss3, 0);
|
|
#endif
|
|
|
|
return fail ? EXIT_FAILURE : EXIT_SUCCESS;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|