diff options
Diffstat (limited to 'elf/tst-tlsalign-extern.c')
-rw-r--r-- | elf/tst-tlsalign-extern.c | 73 |
1 files changed, 0 insertions, 73 deletions
diff --git a/elf/tst-tlsalign-extern.c b/elf/tst-tlsalign-extern.c deleted file mode 100644 index 11384d085e..0000000000 --- a/elf/tst-tlsalign-extern.c +++ /dev/null @@ -1,73 +0,0 @@ -/* Test for large alignment in TLS blocks (extern case), BZ#18383. - Copyright (C) 2015-2017 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/>. */ - -#include <stdint.h> -#include <stdio.h> -#include <stdlib.h> - -/* This is the same as tst-tlsalign-static.c, except that it uses - TLS variables that are defined in a separate translation unit - (ts-tlsalign-vars.c). It turned out that the cause of BZ#18383 - on ARM was actually an ARM assembler bug triggered by the ways of - using .tdata/.tbss sections and relocs referring to them that GCC - chooses when the variables are defined in the same translation - unit that contains the references. */ - -extern __thread int tdata1; -extern __thread int tdata2; -extern __thread int tdata3; -extern __thread int tbss1; -extern __thread int tbss2; -extern __thread int tbss3; - -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); - - return fail ? EXIT_FAILURE : EXIT_SUCCESS; -} - -#include <support/test-driver.c> |