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compiler.h: add CC_USING_PATCHABLE_FUNCTION_ENTRY

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This can be used for architectures implementing dynamic
ftrace via -fpatchable-function-entry.

Signed-off-by: Sven Schnelle <svens@stackframe.org>
Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Sven Schnelle 2019-06-05 22:32:21 +02:00 • committed by Helge Deller
parent 6183d68b8b
commit 2809b392a6
1 changed files with 2 additions and 0 deletions
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2
include/linux/compiler_types.h
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@ -112,6 +112,8 @@ struct ftrace_likely_data {
#if defined(CC_USING_HOTPATCH)
#define notrace __attribute__((hotpatch(0, 0)))
#elif defined(CC_USING_PATCHABLE_FUNCTION_ENTRY)
#define notrace __attribute__((patchable_function_entry(0, 0)))
#else
#define notrace __attribute__((__no_instrument_function__))
#endif