From 68a564f7ac3975de5ce6e6d0f65db63bbe7d2d64 Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Tue, 16 Mar 2010 01:02:18 +0000 Subject: This patch is what I needed to compile coreboot with LLVM. - call va_* directly if coreboot is running on GCC so we don't need to maintain hacks to get to stdarg.h - only define LIBGCC_FILE_NAME if it's an absolute path. GCC and LLVM just print "libgcc.a" if the file is not there. Signed-off-by: Stefan Reinauer Acked-by: Ronald G. Minnich git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5215 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/include/console/vtxprintf.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'src/include') diff --git a/src/include/console/vtxprintf.h b/src/include/console/vtxprintf.h index c949c12115..f7d58bbd6a 100644 --- a/src/include/console/vtxprintf.h +++ b/src/include/console/vtxprintf.h @@ -20,7 +20,19 @@ #ifndef __CONSOLE_VTXPRINTF_H #define __CONSOLE_VTXPRINTF_H +/* With GCC we use -nostdinc -ffreestanding to keep out system includes. + * Unfortunately this also gets us rid of the _compiler_ includes, like + * stdarg.h. To work around the issue, we define varargs directly here. + * On LLVM we can still just include stdarg.h. + */ +#ifdef __GNUC__ +#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) +typedef __builtin_va_list va_list; +#else #include +#endif int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args); -- cgit v1.2.3