Hi all,
Building Linus' tree, today's linux-next build (mips
allmodconfig) failed like this:
In file included from /kisskb/src/include/linux/compiler_types.h:65:0,
from <command-line>:0:
include/linux/compiler_attributes.h:29:29: error: "__GCC4_has_attribute___no_sanitize_coverage__" is not defined [-Werror=undef]
# define __has_attribute(x) __GCC4_has_attribute_##x
^
include/linux/compiler-gcc.h:125:29: note: in expansion of macro '__has_attribute'
#if defined(CONFIG_KCOV) && __has_attribute(__no_sanitize_coverage__)
^
cc1: all warnings being treated as errors
Caused by commit
540540d06e9d ("kcov: add __no_sanitize_coverage to fix noinstr for all architectures")
This ia a gcc 4.9 build, so presumably this?
diff -ru a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
--- a/include/linux/compiler_attributes.h 2021-09-08 09:03:35.169225661 +1000
+++ b/include/linux/compiler_attributes.h 2021-09-08 09:05:47.790907780 +1000
@@ -36,6 +36,7 @@
# define __GCC4_has_attribute___no_profile_instrument_function__ 0
# define __GCC4_has_attribute___nonstring__ 0
# define __GCC4_has_attribute___no_sanitize_address__ 1
+# define __GCC4_has_attribute___no_sanitize_coverage__ 0
# define __GCC4_has_attribute___no_sanitize_undefined__ 1
# define __GCC4_has_attribute___fallthrough__ 0
#endif
--
Cheers,
Stephen Rothwell
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