path: root/tools/testing/selftests/powerpc/copyloops/asm/kasan.h
diff options
authorChristophe Leroy <christophe.leroy@c-s.fr>2019-04-26 16:23:26 +0000
committerMichael Ellerman <mpe@ellerman.id.au>2019-05-03 01:20:25 +1000
commit26deb04342e343ac58ab05bc7d2345ff0be9b667 (patch)
tree39040b7c409757661ecd6c7d82dce9e919072625 /tools/testing/selftests/powerpc/copyloops/asm/kasan.h
parentpowerpc/32: Move early_init() in a separate file (diff)
powerpc: prepare string/mem functions for KASAN
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>
Diffstat (limited to 'tools/testing/selftests/powerpc/copyloops/asm/kasan.h')
1 files changed, 0 insertions, 0 deletions
diff --git a/tools/testing/selftests/powerpc/copyloops/asm/kasan.h b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h
new file mode 100644
index 000000000000..e69de29bb2d1
--- /dev/null
+++ b/tools/testing/selftests/powerpc/copyloops/asm/kasan.h