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| author | Thomas Weißschuh <linux@weissschuh.net> | 2023-08-30 18:07:12 +0300 |
|---|---|---|
| committer | Thomas Weißschuh <linux@weissschuh.net> | 2023-10-12 22:13:52 +0300 |
| commit | b56a9492d058ac93252e4373f8c87c69df6912ff (patch) | |
| tree | 4305ff360e951745ecd7345d658e729c557a00ed /tools/include/nolibc/stdarg.h | |
| parent | 921992229b1f06df6b649860e4a5f3def1489866 (diff) | |
| download | linux-b56a9492d058ac93252e4373f8c87c69df6912ff.tar.xz | |
tools/nolibc: add stdarg.h header
This allows nolic to work with `-nostdinc` avoiding any reliance on
system headers.
The implementation has been lifted from musl libc 1.2.4.
There is already an implementation of stdarg.h in include/linux/stdarg.h
but that is GPL licensed and therefore not suitable for nolibc.
The used compiler builtins have been validated to be at least available
since GCC 4.1.2 and clang 3.0.0.
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
Diffstat (limited to 'tools/include/nolibc/stdarg.h')
| -rw-r--r-- | tools/include/nolibc/stdarg.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/tools/include/nolibc/stdarg.h b/tools/include/nolibc/stdarg.h new file mode 100644 index 000000000000..c628b5783da6 --- /dev/null +++ b/tools/include/nolibc/stdarg.h @@ -0,0 +1,16 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * Variadic argument support for NOLIBC + * Copyright (C) 2005-2020 Rich Felker, et al. + */ + +#ifndef _NOLIBC_STDARG_H +#define _NOLIBC_STDARG_H + +typedef __builtin_va_list va_list; +#define va_start(v, l) __builtin_va_start(v, l) +#define va_end(v) __builtin_va_end(v) +#define va_arg(v, l) __builtin_va_arg(v, l) +#define va_copy(d, s) __builtin_va_copy(d, s) + +#endif /* _NOLIBC_STDARG_H */ |