Commit | Line | Data |
---|---|---|
b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
0b24becc AR |
2 | ifdef CONFIG_KASAN |
3 | ifdef CONFIG_KASAN_INLINE | |
4 | call_threshold := 10000 | |
5 | else | |
6 | call_threshold := 0 | |
7 | endif | |
8 | ||
39d114dd AR |
9 | KASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET) |
10 | ||
0b24becc AR |
11 | CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address |
12 | ||
13 | CFLAGS_KASAN := $(call cc-option, -fsanitize=kernel-address \ | |
39d114dd | 14 | -fasan-shadow-offset=$(KASAN_SHADOW_OFFSET) \ |
bebf56a1 | 15 | --param asan-stack=1 --param asan-globals=1 \ |
0b24becc AR |
16 | --param asan-instrumentation-with-call-threshold=$(call_threshold)) |
17 | ||
18 | ifeq ($(call cc-option, $(CFLAGS_KASAN_MINIMAL) -Werror),) | |
6e54abac | 19 | ifneq ($(CONFIG_COMPILE_TEST),y) |
0b24becc AR |
20 | $(warning Cannot use CONFIG_KASAN: \ |
21 | -fsanitize=kernel-address is not supported by compiler) | |
6e54abac | 22 | endif |
0b24becc AR |
23 | else |
24 | ifeq ($(CFLAGS_KASAN),) | |
6e54abac AR |
25 | ifneq ($(CONFIG_COMPILE_TEST),y) |
26 | $(warning CONFIG_KASAN: compiler does not support all options.\ | |
27 | Trying minimal configuration) | |
28 | endif | |
0b24becc AR |
29 | CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL) |
30 | endif | |
31 | endif | |
c5caf21a AR |
32 | |
33 | CFLAGS_KASAN += $(call cc-option, -fsanitize-address-use-after-scope) | |
0b24becc | 34 | endif |