ublk_drv: add device parameter UBLK_PARAM_TYPE_DEVT
[linux-block.git] / scripts / Makefile.kasan
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b2441318 1# SPDX-License-Identifier: GPL-2.0
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2CFLAGS_KASAN_NOSANITIZE := -fno-builtin
3KASAN_SHADOW_OFFSET ?= $(CONFIG_KASAN_SHADOW_OFFSET)
34b5560d 4
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5cc-param = $(call cc-option, -mllvm -$(1), $(call cc-option, --param $(1)))
6
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7ifdef CONFIG_KASAN_STACK
8 stack_enable := 1
9else
10 stack_enable := 0
11endif
12
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13ifdef CONFIG_KASAN_GENERIC
14
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15ifdef CONFIG_KASAN_INLINE
16 call_threshold := 10000
17else
18 call_threshold := 0
19endif
20
21CFLAGS_KASAN_MINIMAL := -fsanitize=kernel-address
22
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23# -fasan-shadow-offset fails without -fsanitize
24CFLAGS_KASAN_SHADOW := $(call cc-option, -fsanitize=kernel-address \
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25 -fasan-shadow-offset=$(KASAN_SHADOW_OFFSET), \
26 $(call cc-option, -fsanitize=kernel-address \
27 -mllvm -asan-mapping-offset=$(KASAN_SHADOW_OFFSET)))
28
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29ifeq ($(strip $(CFLAGS_KASAN_SHADOW)),)
30 CFLAGS_KASAN := $(CFLAGS_KASAN_MINIMAL)
31else
32 # Now add all the compiler specific options that are valid standalone
33 CFLAGS_KASAN := $(CFLAGS_KASAN_SHADOW) \
34 $(call cc-param,asan-globals=1) \
35 $(call cc-param,asan-instrumentation-with-call-threshold=$(call_threshold)) \
2bd926b4 36 $(call cc-param,asan-instrument-allocas=1)
0b24becc 37endif
c5caf21a 38
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39CFLAGS_KASAN += $(call cc-param,asan-stack=$(stack_enable))
40
2bd926b4 41endif # CONFIG_KASAN_GENERIC
0e410e15 42
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43ifdef CONFIG_KASAN_SW_TAGS
44
45ifdef CONFIG_KASAN_INLINE
5c595ac4 46 instrumentation_flags := $(call cc-param,hwasan-mapping-offset=$(KASAN_SHADOW_OFFSET))
2bd926b4 47else
5c595ac4 48 instrumentation_flags := $(call cc-param,hwasan-instrument-with-calls=1)
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49endif
50
51CFLAGS_KASAN := -fsanitize=kernel-hwaddress \
02c58773 52 $(call cc-param,hwasan-instrument-stack=$(stack_enable)) \
5c595ac4 53 $(call cc-param,hwasan-use-short-granules=0) \
1cbdf60b 54 $(call cc-param,hwasan-inline-all-checks=0) \
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55 $(instrumentation_flags)
56
57endif # CONFIG_KASAN_SW_TAGS
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58
59export CFLAGS_KASAN CFLAGS_KASAN_NOSANITIZE