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Commit 0a9b4091 authored by Vasily Gorbik's avatar Vasily Gorbik Committed by Martin Schwidefsky
Browse files

s390/kasan: avoid instrumentation of early C code 



Instrumented C code cannot run without the kasan shadow area. Exempt
source code files from kasan which are running before / used during
kasan initialization.

Reviewed-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: default avatarVasily Gorbik <gor@linux.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 34849845

arch/s390/boot/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
KCOV_INSTRUMENT := n

GCOV_PROFILE := n

UBSAN_SANITIZE := n

KASAN_SANITIZE := n



KBUILD_AFLAGS := $(KBUILD_AFLAGS_DECOMPRESSOR)

KBUILD_CFLAGS := $(KBUILD_CFLAGS_DECOMPRESSOR)

arch/s390/boot/compressed/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -8,6 +8,7 @@ 
KCOV_INSTRUMENT := n

GCOV_PROFILE := n

UBSAN_SANITIZE := n

KASAN_SANITIZE := n



obj-y	:= $(if $(CONFIG_KERNEL_UNCOMPRESSED),,decompressor.o) piggy.o info.o

targets	:= vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2

arch/s390/kernel/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ KCOV_INSTRUMENT_early_nobss.o := n 
UBSAN_SANITIZE_early.o		:= n

UBSAN_SANITIZE_early_nobss.o	:= n



KASAN_SANITIZE_early_nobss.o	:= n



#

# Passing null pointers is ok for smp code, since we access the lowcore here.

#

drivers/s390/char/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ endif 
GCOV_PROFILE_sclp_early_core.o		:= n

KCOV_INSTRUMENT_sclp_early_core.o	:= n

UBSAN_SANITIZE_sclp_early_core.o	:= n

KASAN_SANITIZE_sclp_early_core.o	:= n



CFLAGS_sclp_early_core.o		+= -D__NO_FORTIFY