681e57bb08
Changes in 4.9.121 x86/l1tf: Fix build error seen if CONFIG_KVM_INTEL is disabled x86: i8259: Add missing include file x86/mm: Disable ioremap free page handling on x86-PAE kasan: don't emit builtin calls when sanitization is off i2c: ismt: fix wrong device address when unmap the data buffer kbuild: verify that $DEPMOD is installed crypto: x86/sha256-mb - fix digest copy in sha256_mb_mgr_get_comp_job_avx2() crypto: vmac - require a block cipher with 128-bit block size crypto: vmac - separate tfm and request context crypto: blkcipher - fix crash flushing dcache in error path crypto: ablkcipher - fix crash flushing dcache in error path ASoC: Intel: cht_bsw_max98090_ti: Fix jack initialization Bluetooth: hidp: buffer overflow in hidp_process_report ioremap: Update pgtable free interfaces with addr x86/mm: Add TLB purge to free pmd/pte page interfaces Linux 4.9.121 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
43 lines
1.3 KiB
Makefile
43 lines
1.3 KiB
Makefile
ifdef CONFIG_KASAN
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ifdef CONFIG_KASAN_INLINE
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call_threshold := 10000
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else
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call_threshold := 0
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endif
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KASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET)
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CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address
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cc-param = $(call cc-option, -mllvm -$(1), $(call cc-option, --param $(1)))
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ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),)
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ifneq ($(CONFIG_COMPILE_TEST),y)
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$(warning Cannot use CONFIG_KASAN: \
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-fsanitize=kernel-address is not supported by compiler)
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endif
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else
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# -fasan-shadow-offset fails without -fsanitize
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CFLAGS_KASAN_SHADOW := $(call cc-option, -fsanitize=kernel-address \
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-fasan-shadow-offset=$(KASAN_SHADOW_OFFSET), \
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$(call cc-option, -fsanitize=kernel-address \
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-mllvm -asan-mapping-offset=$(KASAN_SHADOW_OFFSET)))
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ifeq ($(strip $(CFLAGS_KASAN_SHADOW)),)
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CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
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else
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# Now add all the compiler specific options that are valid standalone
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CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
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$(call cc-param,asan-globals=1) \
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$(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
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$(call cc-param,asan-stack=1) \
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$(call cc-param,asan-use-after-scope=1) \
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$(call cc-param,asan-instrument-allocas=1)
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endif
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endif
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CFLAGS_KASAN_NOSANITIZE := -fno-builtin
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endif
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