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authorStefan Reinauer <stepan@coresystems.de>2010-03-16 01:02:18 +0000
committerStefan Reinauer <stepan@openbios.org>2010-03-16 01:02:18 +0000
commit68a564f7ac3975de5ce6e6d0f65db63bbe7d2d64 (patch)
tree2b50aae3a182468ac3993800fd025b53b01eb146 /src/include/console/vtxprintf.h
parentc6b0e7e2d926f00ebec402f1364c31518c33a051 (diff)
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 <stepan@coresystems.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5215 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/include/console/vtxprintf.h')
-rw-r--r--src/include/console/vtxprintf.h12
1 files changed, 12 insertions, 0 deletions
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 <stdarg.h>
+#endif
int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args);