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From: Julian Klode <julian.klode@gmail.com>

Browse Source 
Date: Mon, 21 Jul 2014 14:26:23 -0400
Subject: [PATCH] inc/efistdarg.h: Use gcc builtins instead of stdarg.h or broken stubs

We cannot use stdarg.h, as this breaks applications compiling
with -nostdinc because those will not find the header.
We also cannot use the stubs, as they just produce broken code,
as seen in the gummiboot 45-1 Debian release.

Signed-off-by: Julian Klode <julian.klode@gmail.com>
Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>
This commit is contained in:
Nigel Croxon 2014-07-23 09:54:25 -04:00
parent 6caab22f23
commit 1ec094bfaf
1 changed files with 5 additions and 10 deletions
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15
gnu-efi-3.0/inc/efistdarg.h
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@ -18,16 +18,11 @@ Abstract:
Revision History
--*/
#ifdef __GNUC__
#include "stdarg.h"
#else
#define _INTSIZEOF(n) ( (sizeof(n) + sizeof(UINTN) - 1) & ~(sizeof(UINTN) - 1) )
typedef CHAR8 * va_list;
typedef __builtin_va_list va_list;
#define va_start(ap,v) ( ap = (va_list)&v + _INTSIZEOF(v) )
#define va_arg(ap,t) ( *(t *)((ap += _INTSIZEOF(t)) - _INTSIZEOF(t)) )
#define va_end(ap) ( ap = (va_list)0 )
#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
#endif /* _INC_STDARG */