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| author | David Laight <david.laight.linux@gmail.com> | 2026-03-08 11:37:26 +0000 |
|---|---|---|
| committer | Thomas Weißschuh <linux@weissschuh.net> | 2026-03-20 17:46:06 +0100 |
| commit | 6702425cd50ebb9a71d6b441df4b0df4f58d160a (patch) | |
| tree | 138ade8dbc6bde1f1540d8cdc035db095b820d4f /tools | |
| parent | cf3470882435c82742ab869d4e2d414de55e7e59 (diff) | |
tools/nolibc: Add _NOLIBC_OPTIMIZER_HIDE_VAR() to compiler.h
Needed to stop compiler 'optimisations' bloating code.
Equivalent to the definition in include/linux/compiler.h
Signed-off-by: David Laight <david.laight.linux@gmail.com>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260308113742.12649-2-david.laight.linux@gmail.com
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/nolibc/compiler.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/include/nolibc/compiler.h b/tools/include/nolibc/compiler.h index a8c7619dcdde..f03f84cfadce 100644 --- a/tools/include/nolibc/compiler.h +++ b/tools/include/nolibc/compiler.h @@ -71,4 +71,7 @@ # define __nolibc_static_assert(_t) #endif +/* Make the optimizer believe the variable can be manipulated arbitrarily. */ +#define _NOLIBC_OPTIMIZER_HIDE_VAR(var) __asm__ ("" : "+r" (var)) + #endif /* _NOLIBC_COMPILER_H */ |