diff options
| author |   kettenis <kettenis@openbsd.org> | 2016-09-06 18:33:35 +0000 |
|---|---|---|
| committer | kettenis <kettenis@openbsd.org> | 2016-09-06 18:33:35 +0000 |
| commit | c9c2859665c8c0ee56e6a9243efd7faf9b4d81d1 (patch) | |
| tree | b4d7279d267cde812209b7b6aee05c2447ff6c51 | |
| parent | use closefrom() before reexec to make sure the new process only gets (diff) | |
| download | wireguard-openbsd-c9c2859665c8c0ee56e6a9243efd7faf9b4d81d1.tar.xz wireguard-openbsd-c9c2859665c8c0ee56e6a9243efd7faf9b4d81d1.zip | |
Remove branch prediction hints from conditional branch instructions. These
hints are not recognized by clang's builtin assembler and the opcode prefixes
they generate have been no-ops for all CPUs after the Pentium 4.
ok guenther@
| -rw-r--r-- | lib/libc/arch/amd64/SYS.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/libc/arch/amd64/SYS.h b/lib/libc/arch/amd64/SYS.h index 3479377f801..e20e50c7875 100644 --- a/lib/libc/arch/amd64/SYS.h +++ b/lib/libc/arch/amd64/SYS.h @@ -1,4 +1,4 @@ -/* $OpenBSD: SYS.h,v 1.19 2016/05/07 19:05:21 guenther Exp $ */ +/* $OpenBSD: SYS.h,v 1.20 2016/09/06 18:33:35 kettenis Exp $ */ /*- * Copyright (c) 1990 The Regents of the University of California. @@ -60,7 +60,7 @@ movl %eax,%fs:(TCB_OFFSET_ERRNO); \ movq $-1, %rax #define HANDLE_ERRNO \ - jnc,pt 99f; \ + jnc 99f; \ SET_ERRNO; \ 99: @@ -84,7 +84,7 @@ /* return, handling errno for failed calls */ #define _RSYSCALL_RET \ - jc,pn 99f; \ + jc 99f; \ ret; \ 99: SET_ERRNO; \ ret |