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| author |   Christophe Leroy <christophe.leroy@c-s.fr> | 2019-04-26 16:23:33 +0000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2019-05-03 01:20:26 +1000 |
| commit | f072015c7b742c42aa5649d22f43163cd0eb7024 (patch) | |
| tree | c4d95b90f992cf837ae87193d6944244de9c4f4a /arch/powerpc/mm | |
| parent | powerpc/32: prepare shadow area for KASAN (diff) | |
| download | linux-dev-f072015c7b742c42aa5649d22f43163cd0eb7024.tar.xz linux-dev-f072015c7b742c42aa5649d22f43163cd0eb7024.zip | |
powerpc: disable KASAN instrumentation on early/critical files.
All files containing functions run before kasan_early_init() is called
must have KASAN instrumentation disabled.
For those file, branch profiling also have to be disabled otherwise
each if () generates a call to ftrace_likely_update().
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/Makefile | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile index c7d5f37f7c52..62735f335bce 100644 --- a/arch/powerpc/mm/Makefile +++ b/arch/powerpc/mm/Makefile @@ -5,6 +5,12 @@ ccflags-$(CONFIG_PPC64) := $(NO_MINIMAL_TOC) +KASAN_SANITIZE_ppc_mmu_32.o := n + +ifdef CONFIG_KASAN +CFLAGS_ppc_mmu_32.o += -DDISABLE_BRANCH_PROFILING +endif + obj-y := fault.o mem.o pgtable.o mmap.o \ init_$(BITS).o pgtable_$(BITS).o \ pgtable-frag.o \ |