Re: [git pull] core/stacktrace changes for v2.6.27

From: Ingo Molnar
Date: Mon Jul 14 2008 - 11:56:44 EST



* Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx> wrote:

> Hi Ingo,
>
> On Mon, 14 Jul 2008 16:44:20 +0200 Ingo Molnar <mingo@xxxxxxx> wrote:
> >
> > Please pull the latest core/stacktrace git tree from:
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git core/stacktrace
>
> This presumably needs the patch I posted today against linux-next that
> fixes the powerpc allmodconfig build.

hm - but you sent that against the generic-ipi tree :-)

but i agree - the patch is below, Linus please apply.

Ingo

---------------->
commit 7798ed0f57b4d137e660fbf5be1e1528e40f89ac
Author: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Date: Mon Jul 14 19:55:03 2008 +1000

generic-ipi: powerpc/generic-ipi tree build failure

Today's linux-next build (powerpc allmodconfig) failed like this:

ERROR: ".save_stack_trace" [tests/backtracetest.ko] undefined!

But save_stack_trace is exported in arch/powerpc/kernel/stacktrace.c

I couldn't figure it out until I noticed these earlier warnings:

arch/powerpc/kernel/stacktrace.c:47: warning: data definition has no type or storage class
arch/powerpc/kernel/stacktrace.c:47: warning: type defaults to 'int' in declaration of 'EXPORT_SYMBOL_GPL'
arch/powerpc/kernel/stacktrace.c:47: warning: parameter names (without types) in function declaration

I applied the patch below.

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: <linuxppc-dev@xxxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
arch/powerpc/kernel/stacktrace.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c
index 9861f17..3cf0d94 100644
--- a/arch/powerpc/kernel/stacktrace.c
+++ b/arch/powerpc/kernel/stacktrace.c
@@ -12,6 +12,7 @@

#include <linux/sched.h>
#include <linux/stacktrace.h>
+#include <linux/module.h>
#include <asm/ptrace.h>

/*
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