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| author |   Thomas Weißschuh <linux@weissschuh.net> | 2025-04-19 12:46:18 +0200 |
|---|---|---|
| committer | Thomas Weißschuh <linux@weissschuh.net> | 2025-04-19 14:17:46 +0200 |
| commit | 8399f14666688be8d84cb3ccbec6ee790c020b36 (patch) | |
| tree | 3964b79b76cf942b0ad5efe2f233ee1537e4e409 /tools/include/nolibc | |
| parent | tools/nolibc: drop manual stack pointer alignment (diff) | |
| download | wireguard-linux-8399f14666688be8d84cb3ccbec6ee790c020b36.tar.xz wireguard-linux-8399f14666688be8d84cb3ccbec6ee790c020b36.zip | |
tools/nolibc: add __nolibc_has_feature()
Certain compiler features are signaled via the __has_feature()
preprocessor builtin.
Add a nolibc wrapper for it, similar to __nolibc_has_attribute().
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250419-nolibc-ubsan-v2-1-060b8a016917@weissschuh.net
Diffstat (limited to 'tools/include/nolibc')
| -rw-r--r-- | tools/include/nolibc/compiler.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h index fa1f547e7f13..e6d6dc116e43 100644 --- a/tools/include/nolibc/compiler.h +++ b/tools/include/nolibc/compiler.h @@ -12,6 +12,12 @@ # define __nolibc_has_attribute(attr) 0 #endif +#if defined(__has_feature) +# define __nolibc_has_feature(feature) __has_feature(feature) +#else +# define __nolibc_has_feature(feature) 0 +#endif + #if __nolibc_has_attribute(naked) # define __nolibc_entrypoint __attribute__((naked)) # define __nolibc_entrypoint_epilogue() |