[PATCH] KAsan: support including header from PBL

[PATCH] KAsan: support including header from PBL

[Ahmad Fatoum]

It can be sometimes useful to add manual poisoning with KASAN to track
down errant accesses. This is complicated a bit, because some files are
build for both PBL and barebox proper. To make such debugging easier,
let's allow <linux/kasan.h> to be included from PBL code.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
 include/linux/kasan.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/kasan.h b/include/linux/kasan.h
index 7c184cd0e234..54fb993f38ba 100644
--- a/include/linux/kasan.h
+++ b/include/linux/kasan.h
@@ -42,7 +42,7 @@
 #define KASAN_ALLOCA_LEFT	0xCA
 #define KASAN_ALLOCA_RIGHT	0xCB
 
-#ifdef CONFIG_KASAN
+#if defined(CONFIG_KASAN) && !defined(__PBL__)
 
 extern unsigned long kasan_shadow_start;
 extern unsigned long kasan_shadow_base;
-- 
2.39.2

Re: [PATCH] KAsan: support including header from PBL

[Sascha Hauer]

On Mon, Sep 11, 2023 at 02:15:24PM +0200, Ahmad Fatoum wrote:
> It can be sometimes useful to add manual poisoning with KASAN to track
> down errant accesses. This is complicated a bit, because some files are
> build for both PBL and barebox proper. To make such debugging easier,
> let's allow <linux/kasan.h> to be included from PBL code.
> 
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>  include/linux/kasan.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Applied, thanks

Sascha

> 
> diff --git a/include/linux/kasan.h b/include/linux/kasan.h
> index 7c184cd0e234..54fb993f38ba 100644
> --- a/include/linux/kasan.h
> +++ b/include/linux/kasan.h
> @@ -42,7 +42,7 @@
>  #define KASAN_ALLOCA_LEFT	0xCA
>  #define KASAN_ALLOCA_RIGHT	0xCB
>  
> -#ifdef CONFIG_KASAN
> +#if defined(CONFIG_KASAN) && !defined(__PBL__)
>  
>  extern unsigned long kasan_shadow_start;
>  extern unsigned long kasan_shadow_base;
> -- 
> 2.39.2
> 
> 
> 

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