From 1ae078b0a3c081ef8dd3be3fda4723d7df1f700e Mon Sep 17 00:00:00 2001
From: peter <peter@FreeBSD.org>
Date: Thu, 18 Jun 1998 18:35:04 +0000
Subject: ELF versions of __warn_references() and __weak_reference().  Note
 that this doesn't work with libc/net/res_stubs.c since gas wants the weak
 reference to take place in the same context as the real definition,
 presumably so that it can get hold of the symbol typing etc. However, this
 doesn't matter for libc/elf since we don't have binaries that use the old
 symbol names.

---
 sys/sys/cdefs.h | 27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

(limited to 'sys')

diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h
index 5640fde..9574779 100644
--- a/sys/sys/cdefs.h
+++ b/sys/sys/cdefs.h
@@ -1,4 +1,3 @@
-
 /*
  * Copyright (c) 1991, 1993
  *	The Regents of the University of California.  All rights reserved.
@@ -35,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	@(#)cdefs.h	8.8 (Berkeley) 1/9/95
- * $Id: cdefs.h,v 1.16 1998/05/28 18:04:34 dt Exp $
+ * $Id: cdefs.h,v 1.17 1998/06/14 13:40:01 bde Exp $
  */
 
 #ifndef	_SYS_CDEFS_H_
@@ -144,6 +143,25 @@
 #endif
 
 #ifdef __GNUC__
+#ifdef __ELF__
+#ifdef __STDC__
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak " #alias);	\
+	__asm__(".set "  #alias ", " #sym)
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning." #sym);	\
+	__asm__(".ascii \"" msg "\"");	\
+	__asm__(".previous")
+#else
+#define	__weak_reference(sym,alias)	\
+	__asm__(".weak alias");		\
+	__asm__(".set alias, sym")
+#define	__warn_references(sym,msg)	\
+	__asm__(".section .gnu.warning.sym"); \
+	__asm__(".ascii \"msg\"");	\
+	__asm__(".previous")
+#endif	/* __STDC__ */
+#else	/* !__ELF__ */
 #ifdef __STDC__
 #define __weak_reference(sym,alias)	\
 	__asm__(".stabs \"_" #alias "\",11,0,0,0");	\
@@ -158,8 +176,9 @@
 #define __warn_references(sym,msg)	\
 	__asm__(".stabs msg,30,0,0,0");			\
 	__asm__(".stabs \"_/**/sym\",1,0,0,0")
-#endif
-#endif
+#endif	/* __STDC__ */
+#endif	/* __ELF__ */
+#endif	/* __GNUC__ */
 
 #define	__IDSTRING(name,string)	static const char name[] __unused = string
 
-- 
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