mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-30 00:31:08 +00:00
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/* Check jmp_buf sizes, alignments and offsets.
|
|
Copyright (C) 2021-2023 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 <stddef.h>
|
|
#include <setjmp.h>
|
|
#include <jmp_buf-macros.h>
|
|
|
|
#define SJSTR_HELPER(x) #x
|
|
#define SJSTR(x) SJSTR_HELPER(x)
|
|
|
|
#define TEST_SIZE(type, size) \
|
|
_Static_assert (sizeof (type) == size, \
|
|
"size of " #type " != " \
|
|
SJSTR (size))
|
|
#define TEST_ALIGN(type, align) \
|
|
_Static_assert (__alignof__ (type) == align , \
|
|
"align of " #type " != " \
|
|
SJSTR (align))
|
|
#define TEST_OFFSET(type, member, offset) \
|
|
_Static_assert (offsetof (type, member) == offset, \
|
|
"offset of " #member " field of " #type " != " \
|
|
SJSTR (offset))
|
|
|
|
/* Check if jmp_buf have the expected sizes. */
|
|
TEST_SIZE (jmp_buf, JMP_BUF_SIZE);
|
|
TEST_SIZE (sigjmp_buf, SIGJMP_BUF_SIZE);
|
|
|
|
/* Check if jmp_buf have the expected alignments. */
|
|
TEST_ALIGN (jmp_buf, JMP_BUF_ALIGN);
|
|
TEST_ALIGN (sigjmp_buf, SIGJMP_BUF_ALIGN);
|
|
|
|
/* Check if internal fields in jmp_buf have the expected offsets. */
|
|
TEST_OFFSET (struct __jmp_buf_tag, __mask_was_saved,
|
|
MASK_WAS_SAVED_OFFSET);
|
|
TEST_OFFSET (struct __jmp_buf_tag, __saved_mask,
|
|
SAVED_MASK_OFFSET);
|
|
|
|
int
|
|
main (int argc, char *argv[])
|
|
{
|
|
return 0;
|
|
}
|