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Added __weak_reference() macro.

This commit is contained in:
jtc 1994-10-05 17:26:54 +00:00
parent badcc17a6d
commit 50387b6e37
1 changed files with 11 additions and 10 deletions
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21
sys/sys/cdefs.h
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@ -1,4 +1,4 @@
/* $NetBSD: cdefs.h,v 1.12 1994/07/22 01:44:47 cgd Exp $ */
/* $NetBSD: cdefs.h,v 1.13 1994/10/05 17:26:54 jtc Exp $ */
/*
* Copyright (c) 1991, 1993
@ -121,21 +121,22 @@
#define __pure
#endif
/*
* The __warn_references macro is used to instruct the linker to print
* warning message "msg" if symbol "sym" is referenced.
*/
#ifdef __GNUC__
#ifdef __STDC__
#define __weak_reference(sym,alias) \
__asm__(".stabs \"" "_" #alias "\",11,0,0,0"); \
__asm__(".stabs \"" "_" #sym "\",1,0,0,0)
#define __warn_references(sym,msg) \
__asm__(".stabs \"" msg "\",30,0,0,0\n.stabs \"_" #sym "\",1,0,0,0")
__asm__(".stabs \"" msg "\",30,0,0,0"); \
__asm__(".stabs \"_" #sym "\",1,0,0,0")
#else
#define __weak_reference(sym,alias) \
__asm__(".stabs \"/**/alias\",11,0,0,0"); \
__asm__(".stabs \"/**/sym\",1,0,0,0")
#define __warn_references(sym,msg) \
__asm__(".stabs msg,30,0,0,0\n.stabs \"_/**/sym\",1,0,0,0")
__asm__(".stabs msg,30,0,0,0"); \
__asm__(".stabs \"_/**/sym\",1,0,0,0")
#endif
#else
#define __warn_references(sym,msg)
#endif
#endif /* !_CDEFS_H_ */