glibc/sysdeps/unix/sysv/linux/x86/bits/rseq.h

31 lines
1.2 KiB
C

/* Restartable Sequences Linux x86 architecture header.
Copyright (C) 2021-2023 Free Software Foundation, Inc.
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/>. */
#ifndef _SYS_RSEQ_H
# error "Never use <bits/rseq.h> directly; include <sys/rseq.h> instead."
#endif
/* RSEQ_SIG is a signature required before each abort handler code.
RSEQ_SIG is used with the following reserved undefined instructions, which
trap in user-space:
x86-32: 0f b9 3d 53 30 05 53 ud1 0x53053053,%edi
x86-64: 0f b9 3d 53 30 05 53 ud1 0x53053053(%rip),%edi */
#define RSEQ_SIG 0x53053053