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kasan/kconfig: Add config CONFIG_MM_KASAN_INSTRUMENT
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It will be used to distinguish between hardware KASan and software KASan. Hardware KASan does not need to use plug-in

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>
This commit is contained in:
wangmingrong1
2025-01-13 17:45:51 +08:00
committed by Xiang Xiao
parent 9b4cd4e0a4
commit df7d062713
20 changed files with 42 additions and 36 deletions
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Documentation/guides/kasan.rst
+2 -2
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@@ -41,7 +41,7 @@ Usage
To enable Generic KASAN, configure the kernel with:: To enable Generic KASAN, configure the kernel with::
CONFIG_MM_KASAN=y CONFIG_MM_KASAN=y
CONFIG_MM_KASAN_ALL=y CONFIG_MM_KASAN_INSTRUMENT_ALL=y
CONFIG_MM_KASAN_GENERIC=y CONFIG_MM_KASAN_GENERIC=y
If you want to enable global variable out of bounds detection, If you want to enable global variable out of bounds detection,
@@ -52,7 +52,7 @@ you can add configurations based on the above::
To enable Software Tag-Based KASAN, configure the kernel with:: To enable Software Tag-Based KASAN, configure the kernel with::
CONFIG_MM_KASAN=y CONFIG_MM_KASAN=y
CONFIG_MM_KASAN_ALL=y CONFIG_MM_KASAN_INSTRUMENT_ALL=y
CONFIG_MM_KASAN_SW_TAGS=y CONFIG_MM_KASAN_SW_TAGS=y
Implementation details Implementation details
arch/arm/src/cmake/armclang.cmake
+1 -1
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@@ -134,7 +134,7 @@ if(CONFIG_MM_UBSAN_TRAP_ON_ERROR)
add_compile_options(-fsanitize-undefined-trap-on-error) add_compile_options(-fsanitize-undefined-trap-on-error)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/arm/src/cmake/clang.cmake
+1 -1
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@@ -135,7 +135,7 @@ if(CONFIG_MM_UBSAN_TRAP_ON_ERROR)
add_compile_options(-fsanitize-undefined-trap-on-error) add_compile_options(-fsanitize-undefined-trap-on-error)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/arm/src/cmake/gcc.cmake
+1 -1
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@@ -149,7 +149,7 @@ if(CONFIG_MM_UBSAN_TRAP_ON_ERROR)
add_compile_options(-fsanitize-undefined-trap-on-error) add_compile_options(-fsanitize-undefined-trap-on-error)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/arm/src/cmake/ghs.cmake
+1 -1
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@@ -106,7 +106,7 @@ if(CONFIG_MM_UBSAN_TRAP_ON_ERROR)
add_compile_options(-fsanitize-undefined-trap-on-error) add_compile_options(-fsanitize-undefined-trap-on-error)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/arm/src/common/Toolchain.defs
+1 -1
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@@ -94,7 +94,7 @@ ifeq ($(CONFIG_MM_UBSAN_TRAP_ON_ERROR),y)
ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error
endif endif
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/arm64/src/Toolchain.defs
+1 -1
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@@ -84,7 +84,7 @@ ifeq ($(CONFIG_MM_UBSAN_TRAP_ON_ERROR),y)
ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error
endif endif
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/arm64/src/cmake/Toolchain.cmake
+1 -1
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@@ -113,7 +113,7 @@ if(CONFIG_MM_UBSAN_TRAP_ON_ERROR)
add_compile_options(-fsanitize-undefined-trap-on-error) add_compile_options(-fsanitize-undefined-trap-on-error)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/risc-v/src/cmake/Toolchain.cmake
+1 -1
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@@ -365,7 +365,7 @@ if(CONFIG_RISCV_TOOLCHAIN STREQUAL GNU_RVG)
endif() endif()
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/risc-v/src/common/Toolchain.defs
+1 -1
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@@ -292,7 +292,7 @@ else
endif endif
endif endif
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/sim/src/cmake/Toolchain.cmake
+1 -1
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@@ -103,7 +103,7 @@ if(CONFIG_SIM_ASAN)
add_compile_options(-fsanitize=pointer-compare) add_compile_options(-fsanitize=pointer-compare)
add_compile_options(-fsanitize=pointer-subtract) add_compile_options(-fsanitize=pointer-subtract)
add_link_options(-fsanitize=address) add_link_options(-fsanitize=address)
elseif(CONFIG_MM_KASAN_ALL) elseif(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/tricore/src/common/ToolchainGnuc.defs
+1 -1
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@@ -72,7 +72,7 @@ ifeq ($(CONFIG_MM_UBSAN_TRAP_ON_ERROR),y)
ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error ARCHOPTIMIZATION += -fsanitize-undefined-trap-on-error
endif endif
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/x86/src/common/Toolchain.defs
+1 -1
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@@ -55,7 +55,7 @@ NM = $(CROSSDEV)nm
OBJCOPY = $(CROSSDEV)objcopy OBJCOPY = $(CROSSDEV)objcopy
OBJDUMP = $(CROSSDEV)objdump OBJDUMP = $(CROSSDEV)objdump
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/x86_64/src/common/Toolchain.defs
+1 -1
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@@ -129,7 +129,7 @@ ifeq ($(CONFIG_LIBCXX),y)
CXXFLAGS += -D_LIBCPP_DISABLE_AVAILABILITY CXXFLAGS += -D_LIBCPP_DISABLE_AVAILABILITY
endif endif
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
ifeq ($(CONFIG_MM_KASAN_GLOBAL),y) ifeq ($(CONFIG_MM_KASAN_GLOBAL),y)
arch/xtensa/src/cmake/Toolchain.cmake
+1 -1
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@@ -85,7 +85,7 @@ add_compile_options(-mlongcalls)
add_compile_options(-mtext-section-literals) add_compile_options(-mtext-section-literals)
if(CONFIG_MM_KASAN_ALL) if(CONFIG_MM_KASAN_INSTRUMENT_ALL)
add_compile_options(-fsanitize=kernel-address) add_compile_options(-fsanitize=kernel-address)
endif() endif()
arch/xtensa/src/lx6/Toolchain.defs
+1 -1
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@@ -45,7 +45,7 @@ endif
ARCHCPUFLAGS = -mlongcalls ARCHCPUFLAGS = -mlongcalls
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
arch/xtensa/src/lx7/Toolchain.defs
+1 -1
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@@ -45,7 +45,7 @@ endif
ARCHCPUFLAGS = -mlongcalls ARCHCPUFLAGS = -mlongcalls
ifeq ($(CONFIG_MM_KASAN_ALL),y) ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
boards/sim/sim/sim/scripts/Make.defs
+1 -1
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@@ -89,7 +89,7 @@ endif
ifeq ($(CONFIG_SIM_ASAN),y) ifeq ($(CONFIG_SIM_ASAN),y)
ARCHOPTIMIZATION += -fsanitize=address -fsanitize-address-use-after-scope ARCHOPTIMIZATION += -fsanitize=address -fsanitize-address-use-after-scope
ARCHOPTIMIZATION += -fsanitize=pointer-compare -fsanitize=pointer-subtract ARCHOPTIMIZATION += -fsanitize=pointer-compare -fsanitize=pointer-subtract
else ifeq ($(CONFIG_MM_KASAN_ALL),y) else ifeq ($(CONFIG_MM_KASAN_INSTRUMENT_ALL),y)
ARCHOPTIMIZATION += -fsanitize=kernel-address ARCHOPTIMIZATION += -fsanitize=kernel-address
endif endif
libs/libc/machine/arch_libc.c
+15 -15
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@@ -89,7 +89,7 @@ size_t ARCH_LIBCFUN(strnlen)(FAR const char *s, size_t maxlen);
FAR char *ARCH_LIBCFUN(strrchr)(FAR const char *s, int c); FAR char *ARCH_LIBCFUN(strrchr)(FAR const char *s, int c);
#endif #endif
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
extern void __asan_loadN(FAR void *addr, size_t size); extern void __asan_loadN(FAR void *addr, size_t size);
# endif # endif
@@ -106,7 +106,7 @@ extern void __asan_storeN(FAR void *addr, size_t size);
FAR void *memchr(FAR const void *s, int c, size_t n) FAR void *memchr(FAR const void *s, int c, size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, n); __asan_loadN((FAR void *)s, n);
# endif # endif
@@ -119,7 +119,7 @@ FAR void *memchr(FAR const void *s, int c, size_t n)
#ifdef CONFIG_LIBC_ARCH_MEMCPY #ifdef CONFIG_LIBC_ARCH_MEMCPY
FAR void *memcpy(FAR void *dest, FAR const void *src, FAR size_t n) FAR void *memcpy(FAR void *dest, FAR const void *src, FAR size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK
__asan_storeN(dest, n); __asan_storeN(dest, n);
# endif # endif
@@ -134,7 +134,7 @@ FAR void *memcpy(FAR void *dest, FAR const void *src, FAR size_t n)
#ifdef CONFIG_LIBC_ARCH_MEMCMP #ifdef CONFIG_LIBC_ARCH_MEMCMP
int memcmp(FAR const void *s1, FAR const void *s2, size_t n) int memcmp(FAR const void *s1, FAR const void *s2, size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s1, n); __asan_loadN((FAR void *)s1, n);
__asan_loadN((FAR void *)s2, n); __asan_loadN((FAR void *)s2, n);
@@ -147,7 +147,7 @@ int memcmp(FAR const void *s1, FAR const void *s2, size_t n)
#ifdef CONFIG_LIBC_ARCH_MEMMOVE #ifdef CONFIG_LIBC_ARCH_MEMMOVE
FAR void *memmove(FAR void *dest, FAR const void *src, FAR size_t n) FAR void *memmove(FAR void *dest, FAR const void *src, FAR size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK
__asan_storeN(dest, n); __asan_storeN(dest, n);
# endif # endif
@@ -162,7 +162,7 @@ FAR void *memmove(FAR void *dest, FAR const void *src, FAR size_t n)
#ifdef CONFIG_LIBC_ARCH_MEMSET #ifdef CONFIG_LIBC_ARCH_MEMSET
FAR void *memset(FAR void *s, int c, FAR size_t n) FAR void *memset(FAR void *s, int c, FAR size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK
__asan_storeN(s, n); __asan_storeN(s, n);
# endif # endif
@@ -174,7 +174,7 @@ FAR void *memset(FAR void *s, int c, FAR size_t n)
#ifdef CONFIG_LIBC_ARCH_STRCMP #ifdef CONFIG_LIBC_ARCH_STRCMP
int strcmp(FAR const char *s1, FAR const char *s2) int strcmp(FAR const char *s1, FAR const char *s2)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s1, ARCH_LIBCFUN(strlen)(s1) + 1); __asan_loadN((FAR void *)s1, ARCH_LIBCFUN(strlen)(s1) + 1);
__asan_loadN((FAR void *)s2, ARCH_LIBCFUN(strlen)(s2) + 1); __asan_loadN((FAR void *)s2, ARCH_LIBCFUN(strlen)(s2) + 1);
@@ -187,7 +187,7 @@ int strcmp(FAR const char *s1, FAR const char *s2)
#ifdef CONFIG_LIBC_ARCH_STRCPY #ifdef CONFIG_LIBC_ARCH_STRCPY
FAR char *strcpy(FAR char *dest, FAR const char *src) FAR char *strcpy(FAR char *dest, FAR const char *src)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK
__asan_storeN(dest, ARCH_LIBCFUN(strlen)(src) + 1); __asan_storeN(dest, ARCH_LIBCFUN(strlen)(src) + 1);
# endif # endif
@@ -203,7 +203,7 @@ FAR char *strcpy(FAR char *dest, FAR const char *src)
size_t strlen(FAR const char *s) size_t strlen(FAR const char *s)
{ {
size_t ret = ARCH_LIBCFUN(strlen)(s); size_t ret = ARCH_LIBCFUN(strlen)(s);
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, ret + 1); __asan_loadN((FAR void *)s, ret + 1);
# endif # endif
@@ -215,7 +215,7 @@ size_t strlen(FAR const char *s)
#ifdef CONFIG_LIBC_ARCH_STRNCPY #ifdef CONFIG_LIBC_ARCH_STRNCPY
FAR char *strncpy(FAR char *dest, FAR const char *src, size_t n) FAR char *strncpy(FAR char *dest, FAR const char *src, size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_WRITES_CHECK
__asan_storeN(dest, n); __asan_storeN(dest, n);
# endif # endif
@@ -230,7 +230,7 @@ FAR char *strncpy(FAR char *dest, FAR const char *src, size_t n)
#ifdef CONFIG_LIBC_ARCH_STRCHR #ifdef CONFIG_LIBC_ARCH_STRCHR
FAR char *strchr(FAR const char *s, int c) FAR char *strchr(FAR const char *s, int c)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1); __asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1);
# endif # endif
@@ -243,7 +243,7 @@ FAR char *strchr(FAR const char *s, int c)
#ifdef CONFIG_LIBC_ARCH_STRCHNUL #ifdef CONFIG_LIBC_ARCH_STRCHNUL
FAR char *strchrnul(FAR const char *s, int c); FAR char *strchrnul(FAR const char *s, int c);
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1); __asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1);
# endif # endif
@@ -255,7 +255,7 @@ FAR char *strchrnul(FAR const char *s, int c);
#ifdef CONFIG_LIBC_ARCH_STRNCMP #ifdef CONFIG_LIBC_ARCH_STRNCMP
int strncmp(FAR const char *s1, FAR const char *s2, size_t n) int strncmp(FAR const char *s1, FAR const char *s2, size_t n)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
size_t size_s1 = ARCH_LIBCFUN(strnlen)(s1, n); size_t size_s1 = ARCH_LIBCFUN(strnlen)(s1, n);
size_t size_s2 = ARCH_LIBCFUN(strnlen)(s2, n); size_t size_s2 = ARCH_LIBCFUN(strnlen)(s2, n);
@@ -274,7 +274,7 @@ int strncmp(FAR const char *s1, FAR const char *s2, size_t n)
size_t strnlen(FAR const char *s, size_t maxlen) size_t strnlen(FAR const char *s, size_t maxlen)
{ {
size_t ret = ARCH_LIBCFUN(strnlen)(s, maxlen); size_t ret = ARCH_LIBCFUN(strnlen)(s, maxlen);
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, ret); __asan_loadN((FAR void *)s, ret);
# endif # endif
@@ -287,7 +287,7 @@ size_t strnlen(FAR const char *s, size_t maxlen)
#ifdef CONFIG_LIBC_ARCH_STRRCHR #ifdef CONFIG_LIBC_ARCH_STRRCHR
FAR char *strrchr(FAR const char *s, int c) FAR char *strrchr(FAR const char *s, int c)
{ {
# ifdef CONFIG_MM_KASAN # ifdef CONFIG_MM_KASAN_INSTRUMENT
# ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK # ifndef CONFIG_MM_KASAN_DISABLE_READS_CHECK
__asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1); __asan_loadN((FAR void *)s, ARCH_LIBCFUN(strlen)(s) + 1);
# endif # endif
mm/kasan/Kconfig
+8 -2
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@@ -11,6 +11,9 @@ config MM_KASAN
bugs in native code. After turn on this option, Please bugs in native code. After turn on this option, Please
add -fsanitize=kernel-address to CFLAGS/CXXFLAGS too. add -fsanitize=kernel-address to CFLAGS/CXXFLAGS too.
config MM_KASAN_INSTRUMENT
bool
if MM_KASAN if MM_KASAN
choice choice
@@ -24,20 +27,23 @@ config MM_KASAN_NONE
config MM_KASAN_GENERIC config MM_KASAN_GENERIC
bool "KAsan generic mode" bool "KAsan generic mode"
select MM_KASAN_INSTRUMENT
---help--- ---help---
KASan generic mode that does not require hardware support at all KASan generic mode that does not require hardware support at all
config MM_KASAN_SW_TAGS config MM_KASAN_SW_TAGS
bool "KAsan SW tags" bool "KAsan SW tags"
select ARM64_TBI select ARM64_TBI
select MM_KASAN_INSTRUMENT
depends on ARCH_ARM64 depends on ARCH_ARM64
---help--- ---help---
KAsan based on software tags KAsan based on software tags
endchoice endchoice
config MM_KASAN_ALL config MM_KASAN_INSTRUMENT_ALL
bool "Enable KASan for the entire image" bool "Enable KASan for the entire image"
depends on MM_KASAN_INSTRUMENT
default y default y
---help--- ---help---
This option activates address sanitizer for the entire image. This option activates address sanitizer for the entire image.
@@ -99,7 +105,7 @@ config MM_KASAN_SKIP_ZERO_TAGS
config MM_KASAN_GLOBAL config MM_KASAN_GLOBAL
bool "Enable global data check" bool "Enable global data check"
depends on MM_KASAN_ALL depends on MM_KASAN_INSTRUMENT_ALL
default n default n
---help--- ---help---
This option enables KASan global data check. This option enables KASan global data check.