diff options
| -rw-r--r-- | lib/libc/arch/amd64/sys/syscall.S | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/lib/libc/arch/amd64/sys/syscall.S b/lib/libc/arch/amd64/sys/syscall.S index 6568ecc55af..99d502ecc9e 100644 --- a/lib/libc/arch/amd64/sys/syscall.S +++ b/lib/libc/arch/amd64/sys/syscall.S @@ -1,4 +1,4 @@ -/* $OpenBSD: syscall.S,v 1.8 2016/05/07 19:05:21 guenther Exp $ */ +/* $OpenBSD: syscall.S,v 1.9 2023/05/11 19:35:50 guenther Exp $ */ /* $NetBSD: syscall.S,v 1.2 2002/06/03 18:30:33 fvdl Exp $ */ /*- @@ -39,4 +39,18 @@ #include "SYS.h" -RSYSCALL(syscall) +SYSENTRY(syscall) + RETGUARD_SETUP(_thread_sys_syscall, r11) +#ifdef _RET_PROTECTOR + pushq 8(%rsp) /* repush 6th argument */ +#endif + RETGUARD_PUSH(r11) + SYSTRAP(syscall) + HANDLE_ERRNO; + RETGUARD_POP(r11) +#ifdef _RET_PROTECTOR + addq $8,%rsp /* repush 6th argument */ +#endif + RETGUARD_CHECK(_thread_sys_syscall, r11) + ret +SYSCALL_END(syscall) |