diff options
Diffstat (limited to 'arch/powerpc/include/asm/kasan.h')
| -rw-r--r-- | arch/powerpc/include/asm/kasan.h | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/arch/powerpc/include/asm/kasan.h b/arch/powerpc/include/asm/kasan.h index a6be4025cba2..365d2720097c 100644 --- a/arch/powerpc/include/asm/kasan.h +++ b/arch/powerpc/include/asm/kasan.h @@ -2,7 +2,7 @@ #ifndef __ASM_KASAN_H #define __ASM_KASAN_H -#ifdef CONFIG_KASAN +#if defined(CONFIG_KASAN) && !defined(CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX) #define _GLOBAL_KASAN(fn) _GLOBAL(__##fn) #define _GLOBAL_TOC_KASAN(fn) _GLOBAL_TOC(__##fn) #define EXPORT_SYMBOL_KASAN(fn) EXPORT_SYMBOL(__##fn) @@ -19,7 +19,7 @@ #define KASAN_SHADOW_SCALE_SHIFT 3 -#ifdef CONFIG_MODULES +#if defined(CONFIG_MODULES) && defined(CONFIG_PPC32) #define KASAN_KERN_START ALIGN_DOWN(PAGE_OFFSET - SZ_256M, SZ_256M) #else #define KASAN_KERN_START PAGE_OFFSET @@ -39,6 +39,17 @@ * c00e000000000000 << 3 + a80e000000000000 = c00fc00000000000 */ #define KASAN_SHADOW_END 0xc00fc00000000000UL + +#else + +/* + * The shadow ends before the highest accessible address + * because we don't need a shadow for the shadow. + * But it doesn't hurt to have a shadow for the shadow, + * keep shadow end aligned eases things. + */ +#define KASAN_SHADOW_END 0xc000200000000000UL + #endif #ifdef CONFIG_KASAN |