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v0.8.1
https://github.com/torvalds/linux
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Tip revision: 7e18e42e4b280c85b76967a9106a13ca61c16179 authored by Linus Torvalds on 04 September 2022, 20:10:01 UTC
Linux 6.0-rc4
Tip revision: 7e18e42
vdso_user_wrapper.S
/* SPDX-License-Identifier: GPL-2.0 */

#include <asm/unistd.h>
#include <asm/dwarf.h>

.macro vdso_syscall func,syscall
	.globl __kernel_compat_\func
	.type  __kernel_compat_\func,@function
	.align 8
__kernel_compat_\func:
	CFI_STARTPROC
	svc	\syscall
	/* Make sure we notice when a syscall returns, which shouldn't happen */
	.word	0
	CFI_ENDPROC
	.size	__kernel_compat_\func,.-__kernel_compat_\func
.endm

vdso_syscall restart_syscall,__NR_restart_syscall
vdso_syscall sigreturn,__NR_sigreturn
vdso_syscall rt_sigreturn,__NR_rt_sigreturn
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