kernel/vdso32/vdso_user_wrapper.S

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002
0003 #include <asm/unistd.h>
0004 #include <asm/dwarf.h>
0005
0006 .macro vdso_syscall func,syscall
0007     .globl __kernel_compat_\func
0008     .type  __kernel_compat_\func,@function
0009     .align 8
0010 __kernel_compat_\func:
0011     CFI_STARTPROC
0012     svc \syscall
0013     /* Make sure we notice when a syscall returns, which shouldn't happen */
0014     .word   0
0015     CFI_ENDPROC
0016     .size   __kernel_compat_\func,.-__kernel_compat_\func
0017 .endm
0018
0019 vdso_syscall restart_syscall,__NR_restart_syscall
0020 vdso_syscall sigreturn,__NR_sigreturn
0021 vdso_syscall rt_sigreturn,__NR_rt_sigreturn