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/* $NetBSD: cdefs_elf.h,v 1.22 2005/02/26 22:25:34 perry Exp $ */
/*
* Copyright (c) 1995, 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
#ifndef _SYS_CDEFS_ELF_H_
#define _SYS_CDEFS_ELF_H_
#ifdef __LEADING_UNDERSCORE
#define _C_LABEL(x) __CONCAT(_,x)
#define _C_LABEL_STRING(x) "_"x
#else
#define _C_LABEL(x) x
#define _C_LABEL_STRING(x) x
#endif
#if __STDC__
#define ___RENAME(x) __asm__(___STRING(_C_LABEL(x)))
#else
#ifdef __LEADING_UNDERSCORE
#define ___RENAME(x) ____RENAME(_/**/x)
#define ____RENAME(x) __asm__(___STRING(x))
#else
#define ___RENAME(x) __asm__(___STRING(x))
#endif
#endif
#define __indr_reference(sym,alias) /* nada, since we do weak refs */
#if __STDC__
#define __strong_alias(alias,sym) \
__asm__(".global " _C_LABEL_STRING(#alias) "\n" \
_C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
#define __weak_alias(alias,sym) \
__asm__(".weak " _C_LABEL_STRING(#alias) "\n" \
_C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym));
#define __weak_extern(sym) \
__asm__(".weak " _C_LABEL_STRING(#sym));
#define __warn_references(sym,msg) \
__asm__(".section .gnu.warning." #sym "\n\t.ascii \"" msg "\"\n\t.text");
#else /* !__STDC__ */
#ifdef __LEADING_UNDERSCORE
#define __weak_alias(alias,sym) ___weak_alias(_/**/alias,_/**/sym)
#define ___weak_alias(alias,sym) \
__asm__(".weak alias\nalias = sym");
#else
#define __weak_alias(alias,sym) \
__asm__(".weak alias\nalias = sym");
#endif
#ifdef __LEADING_UNDERSCORE
#define __weak_extern(sym) ___weak_extern(_/**/sym)
#define ___weak_extern(sym) \
__asm__(".weak sym");
#else
#define __weak_extern(sym) \
__asm__(".weak sym");
#endif
#define __warn_references(sym,msg) \
__asm__(".section .gnu.warning.sym\n\t.ascii msg ; .text");
#endif /* !__STDC__ */
#if __STDC__
#define __SECTIONSTRING(_sec, _str) \
__asm__(".section " #_sec "\n\t.asciz \"" _str "\"\n\t.previous")
#else
#define __SECTIONSTRING(_sec, _str) \
__asm__(".section _sec\n\t.asciz _str\n\t.previous")
#endif
#define __IDSTRING(_n,_s) __SECTIONSTRING(.ident,_s)
#define __RCSID(_s) __IDSTRING(rcsid,_s)
#define __SCCSID(_s)
#define __SCCSID2(_s)
#if 0 /* XXX userland __COPYRIGHTs have \ns in them */
#define __COPYRIGHT(_s) __SECTIONSTRING(.copyright,_s)
#else
#define __COPYRIGHT(_s) \
static const char copyright[] \
__attribute__((__unused__,__section__(".copyright"))) = _s
#endif
#define __KERNEL_RCSID(_n, _s) __RCSID(_s)
#define __KERNEL_SCCSID(_n, _s)
#if 0 /* XXX see above */
#define __KERNEL_COPYRIGHT(_n, _s) __COPYRIGHT(_s)
#else
#define __KERNEL_COPYRIGHT(_n, _s) __SECTIONSTRING(.copyright, _s)
#endif
#ifndef __lint__
#define __link_set_make_entry(set, sym) \
static void const * const __link_set_##set##_sym_##sym \
__section("link_set_" #set) __used = &sym
#define __link_set_make_entry2(set, sym, n) \
static void const * const __link_set_##set##_sym_##sym##_##n \
__section("link_set_" #set) __used = &sym[n]
#else
#define __link_set_make_entry(set, sym) \
extern void const * const __link_set_##set##_sym_##sym
#define __link_set_make_entry2(set, sym, n) \
extern void const * const __link_set_##set##_sym_##sym##_##n
#endif /* __lint__ */
#define __link_set_add_text(set, sym) __link_set_make_entry(set, sym)
#define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym)
#define __link_set_add_data(set, sym) __link_set_make_entry(set, sym)
#define __link_set_add_bss(set, sym) __link_set_make_entry(set, sym)
#define __link_set_add_text2(set, sym, n) __link_set_make_entry2(set, sym, n)
#define __link_set_add_rodata2(set, sym, n) __link_set_make_entry2(set, sym, n)
#define __link_set_add_data2(set, sym, n) __link_set_make_entry2(set, sym, n)
#define __link_set_add_bss2(set, sym, n) __link_set_make_entry2(set, sym, n)
#define __link_set_decl(set, ptype) \
extern ptype * const __start_link_set_##set[]; \
extern ptype * const __stop_link_set_##set[] \
#define __link_set_start(set) (__start_link_set_##set)
#define __link_set_end(set) (__stop_link_set_##set)
#define __link_set_count(set) \
(__link_set_end(set) - __link_set_start(set))
#endif /* !_SYS_CDEFS_ELF_H_ */
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