[PATCH 2/2] kernel: add missing KASAN config symbols
Stijn Tintel
stijn at linux-ipv6.be
Wed Nov 3 11:08:23 PDT 2021
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 at linux-ipv6.be>
---
config/Config-kernel.in | 7 +++++++
target/linux/generic/config-5.10 | 1 +
2 files changed, 8 insertions(+)
diff --git a/config/Config-kernel.in b/config/Config-kernel.in
index 6758d278e7..902e211ea1 100644
--- a/config/Config-kernel.in
+++ b/config/Config-kernel.in
@@ -170,6 +170,13 @@ 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"
diff --git a/target/linux/generic/config-5.10 b/target/linux/generic/config-5.10
index 83004d0879..ddcf083a7d 100644
--- a/target/linux/generic/config-5.10
+++ b/target/linux/generic/config-5.10
@@ -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
--
2.32.0
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