[src/trunk]: src/sys/sys Add a __weak_extern() macro.

[kleink <kleink%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/ea91a711d323
branches:  trunk
changeset: 472569:ea91a711d323
user:      kleink <kleink%NetBSD.org@localhost>
date:      Sun May 02 18:23:57 1999 +0000

description:
Add a __weak_extern() macro.

diffstat:

 sys/sys/cdefs_elf.h |  6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diffs (27 lines):

diff -r 23ab73ba7d36 -r ea91a711d323 sys/sys/cdefs_elf.h
--- a/sys/sys/cdefs_elf.h       Sun May 02 18:12:32 1999 +0000
+++ b/sys/sys/cdefs_elf.h       Sun May 02 18:23:57 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: cdefs_elf.h,v 1.2 1999/03/23 18:28:12 thorpej Exp $    */
+/*     $NetBSD: cdefs_elf.h,v 1.3 1999/05/02 18:23:57 kleink Exp $     */
 
 /*
  * Copyright (c) 1995, 1996 Carnegie-Mellon University.
@@ -44,6 +44,8 @@
 #define        __weak_alias(alias,sym)                                         \
     __asm__(".weak " #alias " ; " #alias " = " #sym);
 #endif /* !__DO_NOT_DO_WEAK__ */
+#define        __weak_extern(sym)                                              \
+    __asm__(".weak " #sym);
 #define        __warn_references(sym,msg)                                      \
     __asm__(".section .gnu.warning." #sym " ; .ascii \"" msg "\" ; .text");
 
@@ -53,6 +55,8 @@
 #define        __weak_alias(alias,sym)                                         \
     __asm__(".weak alias ; alias = sym");
 #endif /* !__DO_NOT_DO_WEAK__ */
+#define        __weak_extern(sym)                                              \
+    __asm__(".weak sym");
 #define        __warn_references(sym,msg)                                      \
     __asm__(".section .gnu.warning.sym ; .ascii msg ; .text");