The stringification operator, `#`, in the preprocessor escapes strings. For example, `# "foo"` becomes `"\"foo\""`. GCC and Clang differ in how they treat section names that contain \".
The portable solution is to not use a string literal with the preprocessor stringification operator. In this case, since __section unconditionally uses the stringification operator, we actually want the more verbose __attribute__((__section__())). Link: https://bugs.llvm.org/show_bug.cgi?id=42950 Fixes: commit e04462fb82f8 ("Compiler Attributes: remove uses of __attribute__ from compiler.h") Signed-off-by: Nick Desaulniers <ndesaulni...@google.com> --- include/linux/compiler.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 92ef163a7479..ac45f6d40d39 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -155,7 +155,7 @@ void ftrace_likely_update(struct ftrace_likely_data *f, int val, extern typeof(sym) sym; \ static const unsigned long __kentry_##sym \ __used \ - __section("___kentry" "+" #sym ) \ + __attribute__((__section__("___kentry+" #sym))) \ = (unsigned long)&sym; #endif -- 2.28.0.709.gb0816b6eb0-goog
