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kernel: add missing KASAN config symbols 

Enabling KERNEL_KASAN exposes several missing symbols. As KASAN_SW_TAGS
is only implemented for arm64 CPUs and requires clang, it doesn't make
sense to make this a build option so just default to KASAN_GENERIC and
disable KASAN_SW_TAGS.

While at it, disable TEST_KASAN_MODULE in the generic 5.10 config.

Fixes build failures with KERNEL_KASAN enabled.

Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
Acked-by: Hauke Mehrtens <hauke@hauke-m.de>
This commit is contained in:
Stijn Tintel 2021-11-03 20:00:26 +02:00
parent f2f42a54e8
commit ec68c75c62
2 changed files with 8 additions and 0 deletions
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7
config/Config-kernel.in
View File

@ -147,6 +147,13 @@ config KERNEL_KASAN_EXTRA
compile time.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81715 has more
if KERNEL_KASAN
config KERNEL_KASAN_GENERIC
def_bool y
config KERNEL_KASAN_SW_TAGS
def_bool n
endif
choice
prompt "Instrumentation type"

1
target/linux/generic/config-5.10
View File

@ -6064,6 +6064,7 @@ CONFIG_TCP_CONG_CUBIC=y
# CONFIG_TEST_HASH is not set
# CONFIG_TEST_HEXDUMP is not set
# CONFIG_TEST_IDA is not set
# CONFIG_TEST_KASAN_MODULE is not set
# CONFIG_TEST_KMOD is not set
# CONFIG_TEST_KSTRTOX is not set
# CONFIG_TEST_LIST_SORT is not set