For opting functions out of sanitizer coverage, the "no_sanitize"
attribute is used, but in GCC this wasn't introduced until GCC 8.
Disable the sanitizer unless we're not using GCC, or it is GCC
version 8 or higher.
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Kees Cook <[email protected]>
---
Cc: Marco Elver <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Cc: Andrey Ryabinin <[email protected]>
Cc: [email protected]
Cc: [email protected]
---
lib/Kconfig.ubsan | 2 ++
1 file changed, 2 insertions(+)
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index 48a67058f84e..e81e1ac4a919 100644
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -119,6 +119,8 @@ config UBSAN_SIGNED_WRAP
bool "Perform checking for signed arithmetic wrap-around"
default UBSAN
depends on !COMPILE_TEST
+ # The no_sanitize attribute was introduced in GCC with version 8.
+ depends on !CC_IS_GCC || GCC_VERSION >= 80000
depends on $(cc-option,-fsanitize=signed-integer-overflow)
help
This option enables -fsanitize=signed-integer-overflow which checks
--
2.34.1