linux/arch/s390/kernel/vdso32/vdso_user_wrapper.S
Heiko Carstens c2272b2d3b s390/vdso: use __ALIGN instead of open coded .align
Use __ALIGN instead of open coded .align statement to make sure that
vdso code follows global kernel function alignment rules.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
2023-03-20 11:12:47 +01:00

23 lines
567 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/linkage.h>
#include <asm/unistd.h>
#include <asm/dwarf.h>
.macro vdso_syscall func,syscall
.globl __kernel_compat_\func
.type __kernel_compat_\func,@function
__ALIGN
__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