mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 14:20:13 +00:00
688903eb3e
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
68 lines
2.1 KiB
C
68 lines
2.1 KiB
C
/* Internal header file for <setjmp.h>. Linux/x86 version.
|
|
Copyright (C) 2017-2018 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/>. */
|
|
|
|
#ifndef _SETJMPP_H
|
|
#define _SETJMPP_H 1
|
|
|
|
#include <bits/types/__sigset_t.h>
|
|
|
|
/* The biggest signal number + 1. As of kernel 4.14, x86 _NSIG is 64.
|
|
Define it to 513 to leave some rooms for future use. */
|
|
#define _JUMP_BUF_SIGSET_NSIG 513
|
|
/* Number of longs to hold all signals. */
|
|
#define _JUMP_BUF_SIGSET_NWORDS \
|
|
((_JUMP_BUF_SIGSET_NSIG - 1 + 7) / (8 * sizeof (unsigned long int)))
|
|
|
|
typedef struct
|
|
{
|
|
unsigned long int __val[_JUMP_BUF_SIGSET_NWORDS];
|
|
} __jmp_buf_sigset_t;
|
|
|
|
typedef union
|
|
{
|
|
__sigset_t __saved_mask_compat;
|
|
struct
|
|
{
|
|
__jmp_buf_sigset_t __saved_mask;
|
|
/* Used for shadow stack pointer. */
|
|
unsigned long int __shadow_stack_pointer;
|
|
} __saved;
|
|
} __jmpbuf_arch_t;
|
|
|
|
#undef __sigset_t
|
|
#define __sigset_t __jmpbuf_arch_t
|
|
#include <setjmp.h>
|
|
#undef __saved_mask
|
|
#define __saved_mask __saved_mask.__saved.__saved_mask
|
|
|
|
#include <signal.h>
|
|
|
|
#define _SIGPROCMASK_NSIG_WORDS (_NSIG / (8 * sizeof (unsigned long int)))
|
|
|
|
typedef struct
|
|
{
|
|
unsigned long int __val[_SIGPROCMASK_NSIG_WORDS];
|
|
} __sigprocmask_sigset_t;
|
|
|
|
extern jmp_buf ___buf;
|
|
extern __typeof (___buf[0].__saved_mask) ___saved_mask;
|
|
_Static_assert (sizeof (___saved_mask) >= sizeof (__sigprocmask_sigset_t),
|
|
"size of ___saved_mask < size of __sigprocmask_sigset_t");
|
|
|
|
#endif /* setjmpP.h */
|