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[v4,3/6] tools include: Add some common function attributes

Message ID 20230728-arm64-signal-memcpy-fix-v4-3-0c1290db5d46@kernel.org (mailing list archive)
State Accepted
Commit 51e6ac1fa45160d400321fa06d7808b30d9d453c
Headers show
Series kselfest/arm64: Fix a SVE memcpy() issue and use tools/include | expand

Commit Message

Mark Brown July 27, 2023, 11:26 p.m. UTC 
We don't have definitions of __always_unused or __noreturn in the tools
version of compiler.h, add them so we can use them in kselftests.

Signed-off-by: Mark Brown <broonie@kernel.org>
---
 tools/include/linux/compiler.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)
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Patch

diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h
index f75cced41d59..1684216e826a 100644
--- a/tools/include/linux/compiler.h
+++ b/tools/include/linux/compiler.h
@@ -42,6 +42,18 @@ 
 # define __always_inline	inline __attribute__((always_inline))
 #endif
 
+#ifndef __always_unused
+#define __always_unused __attribute__((__unused__))
+#endif
+
+#ifndef __noreturn
+#define __noreturn __attribute__((__noreturn__))
+#endif
+
+#ifndef unreachable
+#define unreachable() __builtin_unreachable()
+#endif
+
 #ifndef noinline
 #define noinline
 #endif