diff options
Diffstat (limited to 'arch/s390/kernel/vdso32/vdso_user_wrapper.S')
| -rw-r--r-- | arch/s390/kernel/vdso32/vdso_user_wrapper.S | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/s390/kernel/vdso32/vdso_user_wrapper.S b/arch/s390/kernel/vdso32/vdso_user_wrapper.S new file mode 100644 index 000000000..2e645003f --- /dev/null +++ b/arch/s390/kernel/vdso32/vdso_user_wrapper.S @@ -0,0 +1,22 @@ +/* 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 |