mirror of
https://sourceware.org/git/glibc.git
synced 2025-08-13 03:22:30 +03:00
95e114a091
The rseq area is placed directly into struct pthread. rseq registration failure is not treated as an error, so it is possible that threads run with inconsistent registration status. <sys/rseq.h> is not yet installed as a public header. Co-Authored-By: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
31 lines
1.2 KiB
C
31 lines
1.2 KiB
C
/* Restartable Sequences Linux x86 architecture header.
|
|
Copyright (C) 2021 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
|