[PATCH V2 03/41] compiler_types.h: Add __noinstr_section() for noinstr

From: Lai Jiangshan
Date: Sun Sep 26 2021 - 11:09:03 EST


From: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx>

And it will be extended for C entry code.

Signed-off-by: Lai Jiangshan <laijs@xxxxxxxxxxxxxxxxx>
---
include/linux/compiler_types.h | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index b6ff83a714ca..3c77631c68bd 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -208,10 +208,12 @@ struct ftrace_likely_data {
#endif

/* Section for code which can't be instrumented at all */
-#define noinstr \
- noinline notrace __attribute((__section__(".noinstr.text"))) \
+#define __noinstr_section(section) \
+ noinline notrace __attribute((__section__(section))) \
__no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage

+#define noinstr __noinstr_section(".noinstr.text")
+
#endif /* __KERNEL__ */

#endif /* __ASSEMBLY__ */
--
2.19.1.6.gb485710b