musl/include/stdarg.h

#ifndef _STDARG_H
#define _STDARG_H

#ifdef __cplusplus
extern "C" {
#endif

#define __NEED_va_list

#include <bits/alltypes.h>

#if __GNUC__ >= 3
#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)
#else
#include <bits/stdarg.h>
#endif

#ifdef __cplusplus
}
#endif

#endif
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00			`#ifndef _STDARG_H`
			`#define _STDARG_H`

			`#ifdef __cplusplus`
			`extern "C" {`
			`#endif`

			`#define __NEED_va_list`

			`#include <bits/alltypes.h>`

use compiler builtins for variadic macros when available this slightly cuts down on the degree musl "fights with" gcc, but more importantly, it fixes a critical bug when gcc inlines a variadic function and optimizes out the variadic arguments due to noticing that they were "not used" (by __builtin_va_arg). we leave the old code in place if __GNUC__ >= 3 is false; it seems like it might be necessary at least for tinycc support and perhaps if anyone ever gets around to fixing gcc 2.95.3 enough to make it work.. 2011-04-27 23:41:48 -04:00			`#if __GNUC__ >= 3`
			`#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)`
			`#else`
split off arch-specific stdarg.h stuff 2011-02-15 05:06:15 -05:00			`#include <bits/stdarg.h>`
use compiler builtins for variadic macros when available this slightly cuts down on the degree musl "fights with" gcc, but more importantly, it fixes a critical bug when gcc inlines a variadic function and optimizes out the variadic arguments due to noticing that they were "not used" (by __builtin_va_arg). we leave the old code in place if __GNUC__ >= 3 is false; it seems like it might be necessary at least for tinycc support and perhaps if anyone ever gets around to fixing gcc 2.95.3 enough to make it work.. 2011-04-27 23:41:48 -04:00			`#endif`
initial check-in, version 0.5.0 2011-02-12 00:22:29 -05:00
			`#ifdef __cplusplus`
			`}`
			`#endif`

			`#endif`