mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-22 13:00:06 +00:00
0455f251f4
Use ENTRY and END in assembly codes so that ENDBR32 will be added at function entries when CET is enabled. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
36 lines
1014 B
ArmAsm
36 lines
1014 B
ArmAsm
/* Copyright (C) 2012-2020 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 <sysdep.h>
|
|
#include <lowlevellock.h>
|
|
|
|
ENTRY (pthread_spin_lock)
|
|
mov 4(%esp), %eax
|
|
1: LOCK
|
|
decl 0(%eax)
|
|
jne 2f
|
|
xor %eax, %eax
|
|
ret
|
|
|
|
.align 16
|
|
2: rep
|
|
nop
|
|
cmpl $0, 0(%eax)
|
|
jg 1b
|
|
jmp 2b
|
|
END (pthread_spin_lock)
|