26deb04342
CONFIG_KASAN implements wrappers for memcpy() memmove() and memset()
Those wrappers are doing the verification then call respectively
__memcpy() __memmove() and __memset(). The arches are therefore
expected to rename their optimised functions that way.
For files on which KASAN is inhibited, #defines are used to allow
them to directly call optimised versions of the functions without
going through the KASAN wrappers.
See commit 393f203f5fd5 ("x86_64: kasan: add interceptors for
memset/memmove/memcpy functions") for details.
Other string / mem functions do not (yet) have kasan wrappers,
we therefore have to fallback to the generic versions when
KASAN is active, otherwise KASAN checks will be skipped.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Fixups to keep selftests working]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
49 lines
1.1 KiB
C
49 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __SELFTESTS_POWERPC_PPC_ASM_H
|
|
#define __SELFTESTS_POWERPC_PPC_ASM_H
|
|
#include <ppc-asm.h>
|
|
|
|
#define CONFIG_ALTIVEC
|
|
|
|
#define r1 1
|
|
|
|
#define R14 r14
|
|
#define R15 r15
|
|
#define R16 r16
|
|
#define R17 r17
|
|
#define R18 r18
|
|
#define R19 r19
|
|
#define R20 r20
|
|
#define R21 r21
|
|
#define R22 r22
|
|
#define R29 r29
|
|
#define R30 r30
|
|
#define R31 r31
|
|
|
|
#define STACKFRAMESIZE 256
|
|
#define STK_REG(i) (112 + ((i)-14)*8)
|
|
|
|
#define _GLOBAL(A) FUNC_START(test_ ## A)
|
|
#define _GLOBAL_TOC(A) _GLOBAL(A)
|
|
#define _GLOBAL_TOC_KASAN(A) _GLOBAL(A)
|
|
|
|
#define PPC_MTOCRF(A, B) mtocrf A, B
|
|
|
|
#define EX_TABLE(x, y) \
|
|
.section __ex_table,"a"; \
|
|
.8byte x, y; \
|
|
.previous
|
|
|
|
#define BEGIN_FTR_SECTION .if test_feature
|
|
#define FTR_SECTION_ELSE .else
|
|
#define ALT_FTR_SECTION_END_IFCLR(x) .endif
|
|
#define ALT_FTR_SECTION_END_IFSET(x) .endif
|
|
#define ALT_FTR_SECTION_END(x, y) .endif
|
|
#define END_FTR_SECTION_IFCLR(x) .endif
|
|
#define END_FTR_SECTION_IFSET(x) .endif
|
|
|
|
/* Default to taking the first of any alternative feature sections */
|
|
test_feature = 1
|
|
|
|
#endif /* __SELFTESTS_POWERPC_PPC_ASM_H */
|