diff options
Diffstat (limited to 'arch/powerpc/lib/copy_32.S')
| -rw-r--r-- | arch/powerpc/lib/copy_32.S | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/arch/powerpc/lib/copy_32.S b/arch/powerpc/lib/copy_32.S index ba66846fe973..a3bcf4786e4a 100644 --- a/arch/powerpc/lib/copy_32.S +++ b/arch/powerpc/lib/copy_32.S @@ -1,12 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Memory copy functions for 32-bit PowerPC. * * Copyright (C) 1996-2005 Paul Mackerras. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. */ #include <asm/processor.h> #include <asm/cache.h> @@ -14,6 +10,7 @@ #include <asm/ppc_asm.h> #include <asm/export.h> #include <asm/code-patching-asm.h> +#include <asm/kasan.h> #define COPY_16_BYTES \ lwz r7,4(r4); \ @@ -68,6 +65,7 @@ CACHELINE_BYTES = L1_CACHE_BYTES LG_CACHELINE_BYTES = L1_CACHE_SHIFT CACHELINE_MASK = (L1_CACHE_BYTES-1) +#ifndef CONFIG_KASAN _GLOBAL(memset16) rlwinm. r0 ,r5, 31, 1, 31 addi r6, r3, -4 @@ -81,6 +79,7 @@ _GLOBAL(memset16) sth r4, 4(r6) blr EXPORT_SYMBOL(memset16) +#endif /* * Use dcbz on the complete cache lines in the destination @@ -91,7 +90,7 @@ EXPORT_SYMBOL(memset16) * We therefore skip the optimised bloc that uses dcbz. This jump is * replaced by a nop once cache is active. This is done in machine_init() */ -_GLOBAL(memset) +_GLOBAL_KASAN(memset) cmplwi 0,r5,4 blt 7f @@ -151,6 +150,7 @@ _GLOBAL(memset) bdnz 9b blr EXPORT_SYMBOL(memset) +EXPORT_SYMBOL_KASAN(memset) /* * This version uses dcbz on the complete cache lines in the @@ -163,12 +163,12 @@ EXPORT_SYMBOL(memset) * We therefore jump to generic_memcpy which doesn't use dcbz. This jump is * replaced by a nop once cache is active. This is done in machine_init() */ -_GLOBAL(memmove) +_GLOBAL_KASAN(memmove) cmplw 0,r3,r4 bgt backwards_memcpy /* fall through */ -_GLOBAL(memcpy) +_GLOBAL_KASAN(memcpy) 1: b generic_memcpy patch_site 1b, patch__memcpy_nocache @@ -244,6 +244,8 @@ _GLOBAL(memcpy) 65: blr EXPORT_SYMBOL(memcpy) EXPORT_SYMBOL(memmove) +EXPORT_SYMBOL_KASAN(memcpy) +EXPORT_SYMBOL_KASAN(memmove) generic_memcpy: srwi. r7,r5,3 |