diff options
| author | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-02-18 23:09:54 +0000 |
|---|---|---|
| committer | Michael Shalayeff <mickey@cvs.openbsd.org> | 2002-02-18 23:09:54 +0000 |
| commit | 061518d9e9cccb6b9575708a32a5d7a1ebdccbb6 (patch) | |
| tree | cc328a845c8215a8093d435b71c4b74b253e0bb6 /sys/arch/i386 | |
| parent | 601337fb68d9c8731744d7cd6bbd0ca45377aedb (diff) | |
when saving %fs,%gs clear out the upper 16 bits for ddb
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/i386/locore.s | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/arch/i386/i386/locore.s b/sys/arch/i386/i386/locore.s index b1a030cb1a4..66300b7e409 100644 --- a/sys/arch/i386/i386/locore.s +++ b/sys/arch/i386/i386/locore.s @@ -1,4 +1,4 @@ -/* $OpenBSD: locore.s,v 1.64 2001/12/04 20:54:11 niklas Exp $ */ +/* $OpenBSD: locore.s,v 1.65 2002/02/18 23:09:53 mickey Exp $ */ /* $NetBSD: locore.s,v 1.145 1996/05/03 19:41:19 christos Exp $ */ /*- @@ -1733,6 +1733,10 @@ sw1: bsfl %ecx,%ebx # find a full q movl P_ADDR(%esi),%esi /* Save segment registers. */ +#ifdef DDB + xorl %ax, %ax + xorl %cx, %cx +#endif movl %fs,%ax movl %gs,%cx movl %eax,PCB_FS(%esi) @@ -1891,6 +1895,10 @@ ENTRY(savectx) movl 4(%esp),%edx # edx = p->p_addr /* Save segment registers. */ +#ifdef DDB + xorl %ax, %ax + xorl %cx, %cx +#endif movl %fs,%ax movl %gs,%cx movl %eax,PCB_FS(%edx) |