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-rw-r--r--arch/arm64/Makefile11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 15ff5b4156fd..cd822d8454c0 100644
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -41,6 +41,10 @@ endif
CHECKFLAGS += -D__aarch64__
+ifeq ($(CONFIG_ARM64_ERRATUM_843419), y)
+KBUILD_CFLAGS_MODULE += -mcmodel=large
+endif
+
# Default value
head-y := arch/arm64/kernel/head.o
@@ -51,6 +55,13 @@ else
TEXT_OFFSET := 0x00080000
endif
+# KASAN_SHADOW_OFFSET = VA_START + (1 << (VA_BITS - 3)) - (1 << 61)
+# in 32-bit arithmetic
+KASAN_SHADOW_OFFSET := $(shell printf "0x%08x00000000\n" $$(( \
+ (0xffffffff & (-1 << ($(CONFIG_ARM64_VA_BITS) - 32))) \
+ + (1 << ($(CONFIG_ARM64_VA_BITS) - 32 - 3)) \
+ - (1 << (64 - 32 - 3)) )) )
+
export TEXT_OFFSET GZFLAGS
core-y += arch/arm64/kernel/ arch/arm64/mm/