linux-kernel - Re: [git-pull -tip V2] x86: cpu architecture debug code

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Date:	Wed, 11 Mar 2009 05:25:10 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	"H. Peter Anvin" <hpa@...or.com>, x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git-pull -tip V2] x86: cpu architecture debug code

On Tue, 2009-03-10 at 18:45 +0100, Ingo Molnar wrote:
> Thanks - picked it up into tip:x86/debug. (Note that i 
> rearranged the Makefile details a bit so that it does not 
> conflict with tip:perfcounters)
> 
> Not yet in tip:master, because it triggers this build failure:
> 
> arch/x86/kernel/cpu/cpu_debug.c: In function ‘print_dt’:
> arch/x86/kernel/cpu/cpu_debug.c:475: error: implicit declaration of function ‘store_ldt’
> 

Here is the fix.

The following changes since commit 259ef6fcea4046fe24495b1e3631c1b905c531c1:
  Jaswinder Singh Rajput (1):
        x86: cpu architecture debug code

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/jaswinder/linux-2.6-tip-cpu.git master

Jaswinder Singh Rajput (1):
      x86: cpu_debug.c remove some dependency

 arch/x86/kernel/cpu/cpu_debug.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

Complete diff:
diff --git a/arch/x86/kernel/cpu/cpu_debug.c b/arch/x86/kernel/cpu/cpu_debug.c
index 0bdf4da..08c365a 100755
--- a/arch/x86/kernel/cpu/cpu_debug.c
+++ b/arch/x86/kernel/cpu/cpu_debug.c
@@ -464,19 +464,19 @@ static void print_dt(void *seq)
 	unsigned long ldt;
 
 	/* IDT */
-	store_idt((struct desc_ptr *)&dt);
+	native_store_idt((struct desc_ptr *)&dt);
 	print_desc_ptr("IDT", seq, dt);
 
 	/* GDT */
-	store_gdt((struct desc_ptr *)&dt);
+	native_store_gdt((struct desc_ptr *)&dt);
 	print_desc_ptr("GDT", seq, dt);
 
 	/* LDT */
-	store_ldt(ldt);
+	asm volatile("sldt %0" : "=m" (ldt));
 	seq_printf(seq, " LDT\t: %016lx\n", ldt);
 
 	/* TR */
-	store_tr(ldt);
+	asm volatile("str %0" : "=r" (ldt));
 	seq_printf(seq, " TR\t: %016lx\n", ldt);
 }
 


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