mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 22:10:13 +00:00
581c785bf3
I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 7061 files FOO. I then removed trailing white space from math/tgmath.h, support/tst-support-open-dev-null-range.c, and sysdeps/x86_64/multiarch/strlen-vec.S, to work around the following obscure pre-commit check failure diagnostics from Savannah. I don't know why I run into these diagnostics whereas others evidently do not. remote: *** 912-#endif remote: *** 913: remote: *** 914- remote: *** error: lines with trailing whitespace found ... remote: *** error: sysdeps/unix/sysv/linux/statx_cp.c: trailing lines
119 lines
2.8 KiB
C
119 lines
2.8 KiB
C
/* Copyright (C) 2003-2022 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 <pthread.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdint.h>
|
|
#include <inttypes.h>
|
|
#include <support/support.h>
|
|
#include <support/check.h>
|
|
#include <support/xthread.h>
|
|
|
|
struct test_s
|
|
{
|
|
__attribute__ ((aligned(0x20))) int a;
|
|
__attribute__ ((aligned(0x200))) int b;
|
|
};
|
|
|
|
#define INIT_A 1
|
|
#define INIT_B 42
|
|
/* Deliberately not static. */
|
|
__thread struct test_s s __attribute__ ((tls_model ("initial-exec"))) =
|
|
{
|
|
.a = INIT_A,
|
|
.b = INIT_B
|
|
};
|
|
|
|
/* Use noinline in combination with not static to ensure that the
|
|
alignment check is really done. Otherwise it was optimized out! */
|
|
__attribute__ ((noinline)) void
|
|
check_alignment (const char *thr_name, const char *ptr_name,
|
|
int *ptr, int alignment)
|
|
{
|
|
uintptr_t offset_aligment = ((uintptr_t) ptr) & (alignment - 1);
|
|
if (offset_aligment)
|
|
{
|
|
FAIL_EXIT1 ("%s (%p) is not 0x%x-byte aligned in %s thread\n",
|
|
ptr_name, ptr, alignment, thr_name);
|
|
}
|
|
}
|
|
|
|
static void
|
|
check_s (const char *thr_name)
|
|
{
|
|
if (s.a != INIT_A || s.b != INIT_B)
|
|
FAIL_EXIT1 ("initial value of s in %s thread wrong\n", thr_name);
|
|
|
|
check_alignment (thr_name, "s.a", &s.a, 0x20);
|
|
check_alignment (thr_name, "s.b", &s.b, 0x200);
|
|
}
|
|
|
|
static void *
|
|
tf (void *arg)
|
|
{
|
|
check_s ("child");
|
|
|
|
++s.a;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
|
|
int
|
|
do_test (void)
|
|
{
|
|
check_s ("main");
|
|
|
|
pthread_attr_t a;
|
|
|
|
xpthread_attr_init (&a);
|
|
|
|
#define STACK_SIZE (1 * 1024 * 1024)
|
|
xpthread_attr_setstacksize (&a, STACK_SIZE);
|
|
|
|
#define N 10
|
|
int i;
|
|
for (i = 0; i < N; ++i)
|
|
{
|
|
#define M 10
|
|
pthread_t th[M];
|
|
int j;
|
|
for (j = 0; j < M; ++j, ++s.a)
|
|
th[j] = xpthread_create (&a, tf, NULL);
|
|
|
|
for (j = 0; j < M; ++j)
|
|
xpthread_join (th[j]);
|
|
}
|
|
|
|
/* Also check the alignment of the tls variables if a misaligned stack is
|
|
specified. */
|
|
pthread_t th;
|
|
void *thr_stack = NULL;
|
|
thr_stack = xposix_memalign (0x200, STACK_SIZE + 1);
|
|
xpthread_attr_setstack (&a, thr_stack + 1, STACK_SIZE);
|
|
th = xpthread_create (&a, tf, NULL);
|
|
xpthread_join (th);
|
|
free (thr_stack);
|
|
|
|
xpthread_attr_destroy (&a);
|
|
|
|
return 0;
|
|
}
|
|
|
|
#include <support/test-driver.c>
|