To: "Barry deFreese" <[EMAIL PROTECTED]> Cc: <bug-hurd@gnu.org> Sent: Saturday, November 04, 2006 8:40 PM Subject: Re: Savannah task 5878 - port user_gdt
Hi, Barry deFreese, le Sat 04 Nov 2006 20:14:08 -0500, a écrit :I have an improved patch that does work and has been moderately tested.--- ChangeLog 4 Nov 2006 23:32:21 -0000 1.128.2.159 +++ ChangeLog 5 Nov 2006 01:04:41 -0000 @@ -1,3 +1,15 @@ + * i386/i386/gdt.h (USER_GDT, USER_GDT_SLOTS): New macros. You should also note that GDTSZ got modified too.+ * i386/i386/thread.h (struct i386_machine_state): New member user_gdt.And that gdt.h is included. + * Thanks to Samuel Thibault for fix ups and testing! Not needed :) --- i386/i386/gdt.h 4 Nov 2006 23:32:21 -0000 1.2.2.1 +++ i386/i386/gdt.h 5 Nov 2006 01:05:01 -0000 @@ -49,8 +49,9 @@ #define USER_FPREGS 0x40 /* user-mode access to saved floating-point registers */ -#define GDTSZ 11 - +#define GDTSZ 13 +#define USER_GDT 0x48 +#define USER_GDT_SLOTS 2 You should define GDTSZ after USER_GDT and USER_GDT_SLOTS, and GDTSZ should then rather be (USER_GDT/8 + USER_GDT_SLOTS) Index: linux/src/include/linux/head.h =================================================================== RCS file: /cvsroot/hurd/gnumach/linux/src/include/linux/Attic/head.h,v retrieving revision 1.1 diff -u -r1.1 head.h --- linux/src/include/linux/head.h 26 Apr 1999 05:56:28 -0000 1.1 +++ linux/src/include/linux/head.h 5 Nov 2006 01:05:03 -0000 @@ -5,7 +5,10 @@ unsigned long a,b; } desc_table[256]; -extern desc_table idt,gdt; +/* XXX Linux code doesn't use idt/gdt? */ +/* + * extern desc_table idt,gdt; + */ They shouldn't ever use idt/gdt directly. Samuel
Samuel, Thanks for the feedback. How's this one? Barry
gnumach_i386_gdt_2.diff
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