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Subject[PATCH] binutils-2.16 & kernel-2.6.11.10
Date

hi,

the "not being able to compile kernel with latest binutils" problem is also
present in 2.6.11.10, at least in:

arch/i386/kernel/process.c
arch/i386/kernel/vm86.c
include/asm-i386/system.h

substituting movl with movw for segreg moves will make it work again,
but I don't know if these are the only files which are probably affected, too.

(by the way - I once found an webpage which allowed viewing LKML in
"realtime", but I've lost the adress - would anyone be so kind and tell
me where I can find this?)


please find the patches below:

--- linux-2.6.11.10.orig/arch/i386/kernel/process.c 2005-05-16 19:50:30.000000000 +0200
+++ linux-2.6.11.10/arch/i386/kernel/process.c 2005-05-21 23:20:44.000000000 +0200
@@ -5,6 +5,9 @@
*
* Pentium III FXSR, SSE support
* Gareth Hughes <gareth@valinux.com>, May 2000
+ *
+ * Sat May 21 22:11:22 MEST 2005 herp - Herbert Rosmanith
+ * minor fixes for as from binutils-2.16
*/

/*
@@ -596,8 +599,8 @@
* Save away %fs and %gs. No need to save %es and %ds, as
* those are always kernel segments while inside the kernel.
*/
- asm volatile("movl %%fs,%0":"=m" (*(int *)&prev->fs));
- asm volatile("movl %%gs,%0":"=m" (*(int *)&prev->gs));
+ asm volatile("movw %%fs,%0":"=m" (*(int *)&prev->fs));
+ asm volatile("movw %%gs,%0":"=m" (*(int *)&prev->gs));

/*
* Restore %fs and %gs if needed.
--- linux-2.6.11.10.orig/arch/i386/kernel/vm86.c 2005-05-16 19:50:30.000000000 +0200
+++ linux-2.6.11.10/arch/i386/kernel/vm86.c 2005-05-21 23:10:13.000000000 +0200
@@ -3,6 +3,9 @@
*
* Copyright (C) 1994 Linus Torvalds
*
+ * 21 may 2005 - make it compile with binutils-2.16.90
+ * Herbert Rosmanith
+ *
* 29 dec 2001 - Fixed oopses caused by unchecked access to the vm86
* stack - Manfred Spraul <manfreds@colorfullife.com>
*
@@ -309,8 +312,8 @@
*/
info->regs32->eax = 0;
tsk->thread.saved_esp0 = tsk->thread.esp0;
- asm volatile("movl %%fs,%0":"=m" (tsk->thread.saved_fs));
- asm volatile("movl %%gs,%0":"=m" (tsk->thread.saved_gs));
+ asm volatile("movw %%fs,%0":"=m" (tsk->thread.saved_fs));
+ asm volatile("movw %%gs,%0":"=m" (tsk->thread.saved_gs));

tss = &per_cpu(init_tss, get_cpu());
tsk->thread.esp0 = (unsigned long) &info->VM86_TSS_ESP0;
--- linux-2.6.11.10.orig/include/asm-i386/system.h 2005-05-16 19:51:12.000000000 +0200
+++ linux-2.6.11.10/include/asm/system.h 2005-05-21 22:48:48.000000000 +0200
@@ -81,7 +81,7 @@
#define loadsegment(seg,value) \
asm volatile("\n" \
"1:\t" \
- "movl %0,%%" #seg "\n" \
+ "movw %0,%%" #seg "\n" \
"2:\n" \
".section .fixup,\"ax\"\n" \
"3:\t" \
@@ -99,7 +99,7 @@
* Save a segment register away
*/
#define savesegment(seg, value) \
- asm volatile("movl %%" #seg ",%0":"=m" (*(int *)&(value)))
+ asm volatile("movw %%" #seg ",%0":"=m" (*(int *)&(value)))

/*
* Clear and set 'TS' bit respectively
-
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