diff options
| author |   guenther <guenther@openbsd.org> | 2016-10-04 03:15:51 +0000 |
|---|---|---|
| committer | guenther <guenther@openbsd.org> | 2016-10-04 03:15:51 +0000 |
| commit | aa9f6bfe037dc443ad3cc550a5705d5c20f8cf2b (patch) | |
| tree | 53af9fe27dfc49596b6420933f9901a957d667c2 | |
| parent | Remove some dead code in cmd-move-window.c and make a load of local (diff) | |
| download | wireguard-openbsd-aa9f6bfe037dc443ad3cc550a5705d5c20f8cf2b.tar.xz wireguard-openbsd-aa9f6bfe037dc443ad3cc550a5705d5c20f8cf2b.zip | |
Use the userspace-visible thread register directly in __cerror instead
of indirecting through __errno().
Register naming tweaks and clang testing by patrick@ and jsg@
ok kettenis@
| -rw-r--r-- | lib/libc/arch/arm/sys/cerror.S | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/lib/libc/arch/arm/sys/cerror.S b/lib/libc/arch/arm/sys/cerror.S index ec6bce8a1aa..9d04b9cb4e2 100644 --- a/lib/libc/arch/arm/sys/cerror.S +++ b/lib/libc/arch/arm/sys/cerror.S @@ -1,4 +1,4 @@ -/* $OpenBSD: cerror.S,v 1.9 2016/08/06 19:16:09 guenther Exp $ */ +/* $OpenBSD: cerror.S,v 1.10 2016/10/04 03:15:51 guenther Exp $ */ /* $NetBSD: cerror.S,v 1.5 2003/08/07 16:42:04 agc Exp $ */ /*- @@ -34,11 +34,13 @@ #include "SYS.h" +/* offsetof(struct tib, tib_errno) - offsetof(struct tib, __tib_tcb) */ +#define TCB_OFFSET_ERRNO (-8) + _ENTRY(CERROR) - stmfd sp!, {r4, lr} - mov r4, r0 - bl _HIDDEN(__errno) - str r4, [r0] + mrc p15, 0, r1, c13, c0, 3 + str r0, [r1, #TCB_OFFSET_ERRNO] mvn r0, #0x00000000 mvn r1, #0x00000000 - ldmfd sp!, {r4, pc} + mov pc, lr +END(CERROR) |