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cdefs.h revision 1.7 
      1 /*	$NetBSD: cdefs.h,v 1.7 1997/11/04 23:09:58 thorpej Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1995 Carnegie-Mellon University.
      5  * All rights reserved.
      6  *
      7  * Author: Chris G. Demetriou
      8  *
      9  * Permission to use, copy, modify and distribute this software and
     10  * its documentation is hereby granted, provided that both the copyright
     11  * notice and this permission notice appear in all copies of the
     12  * software, derivative works or modified versions, and any portions
     13  * thereof, and that both notices appear in supporting documentation.
     14  *
     15  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
     16  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
     17  * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
     18  *
     19  * Carnegie Mellon requests users of this software to return to
     20  *
     21  *  Software Distribution Coordinator  or  Software.Distribution (at) CS.CMU.EDU
     22  *  School of Computer Science
     23  *  Carnegie Mellon University
     24  *  Pittsburgh PA 15213-3890
     25  *
     26  * any improvements or extensions that they make and grant Carnegie the
     27  * rights to redistribute these changes.
     28  */
     29 
     30 #ifndef _MACHINE_CDEFS_H_
     31 #define	_MACHINE_CDEFS_H_
     32 
     33 #define	_C_LABEL(x)	x
     34 
     35 #ifdef __GNUC__
     36 #define	__RENAME(x)	__asm__(___STRING(_C_LABEL(x)))
     37 #endif
     38 
     39 #define	__indr_references(sym,msg)	/* nothing */
     40 
     41 #if defined __GNUC__ && defined __STDC__
     42 #define __warn_references(sym, msg)                  \
     43   static const char __evoke_link_warning_##sym[]     \
     44     __attribute__ ((section (".gnu.warning." #sym))) = msg;
     45 #else
     46 #define	__warn_references(sym,msg)	/* nothing */
     47 #endif
     48 
     49 /* Kernel-only .sections for kernel copyright */
     50 #ifdef _KERNEL
     51 
     52 #ifdef __STDC__
     53 #define	__KERNEL_SECTIONSTRING(_sec, _str)				\
     54 	__asm__(".section " #_sec " ; .asciz \"" _str "\" ; .text")
     55 #else
     56 #define	__KERNEL_SECTIONSTRING(_sec, _str)				\
     57 	__asm__(".section _sec ; .asciz _str ; .text")
     58 #endif
     59 
     60 #define	__KERNEL_RCSID(_n, _s)		__KERNEL_SECTIONSTRING(.ident, _s)
     61 #define	__KERNEL_COPYRIGHT(_n, _s)	__KERNEL_SECTIONSTRING(.copyright, _s)
     62 
     63 #ifdef NO_KERNEL_RCSIDS
     64 #undef __KERNEL_RCSID
     65 #define	__KERNEL_RCSID(_n, _s)		/* nothing */
     66 #endif
     67 
     68 #endif /* _KERNEL */
     69 
     70 #endif /* !_MACHINE_CDEFS_H_ */
     71