Ok to commit to gnumach-1-branch?
2005-09-18 Jeroen Dekkers <[EMAIL PROTECTED]>
* i386/i386/locore.S (trap_push_segs): Switch fs and gs to kernel
data segment too.
(syscall_entry_2): Likewise.
* i386/i386/user_ldt.c (i386_set_ldt): Always copy the master LDT
when there is no old user LDT.
Index: i386/i386/locore.S
===================================================================
RCS file: /cvsroot/hurd/gnumach/i386/i386/locore.S,v
retrieving revision 1.6.2.1
diff -u -p -r1.6.2.1 locore.S
--- i386/i386/locore.S 28 Nov 2004 17:29:35 -0000 1.6.2.1
+++ i386/i386/locore.S 30 Aug 2005 10:34:02 -0000
@@ -464,6 +464,8 @@ trap_push_segs:
mov %ss,%ax /* switch to kernel data segment */
mov %ax,%ds /* (same as kernel stack segment) */
mov %ax,%es
+ mov %ax,%fs
+ mov %ax,%gs
trap_set_segs:
cld /* clear direction flag */
@@ -982,6 +984,8 @@ syscall_entry_2:
mov %ss,%dx /* switch to kernel data segment */
mov %dx,%ds
mov %dx,%es
+ mov %dx,%fs
+ mov %dx,%gs
/*
* Shuffle eflags,eip,cs into proper places
Index: i386/i386/user_ldt.c
===================================================================
RCS file: /cvsroot/hurd/gnumach/i386/i386/user_ldt.c,v
retrieving revision 1.2
diff -u -p -r1.2 user_ldt.c
--- i386/i386/user_ldt.c 16 Sep 1999 02:17:48 -0000 1.2
+++ i386/i386/user_ldt.c 30 Aug 2005 10:34:02 -0000
@@ -225,7 +225,7 @@ i386_set_ldt(thread, first_selector, des
(char *)&new_ldt->ldt[0],
old_ldt->desc.limit_low + 1);
}
- else if (thread == current_thread()) {
+ else {
struct real_descriptor template = {0, 0, 0, ACC_P, 0, 0 ,0};
for (dp = &new_ldt->ldt[0], i = 0; i < first_desc; i++, dp++) {
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