summaryrefslogtreecommitdiff
path: root/mm/kasan/Makefile
blob: 7634dd2a61285646373aa55b6751c8d535f5b2d4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
# SPDX-License-Identifier: GPL-2.0
KASAN_SANITIZE := n
UBSAN_SANITIZE := n
KCOV_INSTRUMENT := n

# Disable ftrace to avoid recursion.
CFLAGS_REMOVE_common.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_generic.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_init.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_quarantine.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_report.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_report_generic.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_report_hw_tags.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_report_sw_tags.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_shadow.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_hw_tags.o = $(CC_FLAGS_FTRACE)
CFLAGS_REMOVE_sw_tags.o = $(CC_FLAGS_FTRACE)

# Function splitter causes unnecessary splits in __asan_load1/__asan_store1
# see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533
CC_FLAGS_KASAN_RUNTIME := $(call cc-option, -fno-conserve-stack)
CC_FLAGS_KASAN_RUNTIME += -fno-stack-protector
# Disable branch tracing to avoid recursion.
CC_FLAGS_KASAN_RUNTIME += -DDISABLE_BRANCH_PROFILING

CFLAGS_common.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_init.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_quarantine.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report_generic.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_report_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_shadow.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_hw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)
CFLAGS_sw_tags.o := $(CC_FLAGS_KASAN_RUNTIME)

CFLAGS_KASAN_TEST := $(CFLAGS_KASAN) $(call cc-disable-warning, vla)
ifndef CONFIG_CC_HAS_KASAN_MEMINTRINSIC_PREFIX
# If compiler instruments memintrinsics by prefixing them with __asan/__hwasan,
# we need to treat them normally (as builtins), otherwise the compiler won't
# recognize them as instrumentable. If it doesn't instrument them, we need to
# pass -fno-builtin, so the compiler doesn't inline them.
CFLAGS_KASAN_TEST += -fno-builtin
endif

CFLAGS_kasan_test.o := $(CFLAGS_KASAN_TEST)
CFLAGS_kasan_test_module.o := $(CFLAGS_KASAN_TEST)

obj-y := common.o report.o
obj-$(CONFIG_KASAN_GENERIC) += init.o generic.o report_generic.o shadow.o quarantine.o
obj-$(CONFIG_KASAN_HW_TAGS) += hw_tags.o report_hw_tags.o tags.o report_tags.o
obj-$(CONFIG_KASAN_SW_TAGS) += init.o report_sw_tags.o shadow.o sw_tags.o tags.o report_tags.o

obj-$(CONFIG_KASAN_KUNIT_TEST) += kasan_test.o
obj-$(CONFIG_KASAN_MODULE_TEST) += kasan_test_module.o