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* 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.
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Copyright (C) 2017-2018 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#ifndef _SETJMPP_H
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#define _SETJMPP_H 1
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#include <bits/types/__sigset_t.h>
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/* The biggest signal number + 1. As of kernel 4.14, x86 _NSIG is 64.
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Define it to 513 to leave some rooms for future use. */
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#define _JUMP_BUF_SIGSET_NSIG 513
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/* Number of longs to hold all signals. */
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#define _JUMP_BUF_SIGSET_NWORDS \
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((_JUMP_BUF_SIGSET_NSIG - 1 + 7) / (8 * sizeof (unsigned long int)))
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typedef struct
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{
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unsigned long int __val[_JUMP_BUF_SIGSET_NWORDS];
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} __jmp_buf_sigset_t;
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typedef union
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{
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__sigset_t __saved_mask_compat;
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struct
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{
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__jmp_buf_sigset_t __saved_mask;
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/* Used for shadow stack pointer. */
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unsigned long int __shadow_stack_pointer;
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} __saved;
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} __jmpbuf_arch_t;
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#undef __sigset_t
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#define __sigset_t __jmpbuf_arch_t
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#include <setjmp.h>
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#undef __saved_mask
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#define __saved_mask __saved_mask.__saved.__saved_mask
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#include <signal.h>
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#define _SIGPROCMASK_NSIG_WORDS (_NSIG / (8 * sizeof (unsigned long int)))
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typedef struct
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{
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unsigned long int __val[_SIGPROCMASK_NSIG_WORDS];
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} __sigprocmask_sigset_t;
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extern jmp_buf ___buf;
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extern __typeof (___buf[0].__saved_mask) ___saved_mask;
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_Static_assert (sizeof (___saved_mask) >= sizeof (__sigprocmask_sigset_t),
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"size of ___saved_mask < size of __sigprocmask_sigset_t");
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#endif /* setjmpP.h */
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