minix/nbsd_include/sys/cdefs_aout.h

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2011-02-21 14:13:55 +01:00
/* $NetBSD: cdefs_aout.h,v 1.20 2006/05/18 17:55:38 christos Exp $ */
/*
* Written by J.T. Conklin <jtc@wimsey.com> 01/17/95.
* Public domain.
*/
#ifndef _SYS_CDEFS_AOUT_H_
#define _SYS_CDEFS_AOUT_H_
#define _C_LABEL(x) __CONCAT(_,x)
#define _C_LABEL_STRING(x) "_"x
#if __STDC__
#define ___RENAME(x) __asm(___STRING(_C_LABEL(x)))
#else
#define ___RENAME(x) ____RENAME(_/**/x)
#define ____RENAME(x) __asm(___STRING(x))
#endif
#define __indr_reference(sym,alias) /* nada, since we do weak refs */
#ifdef __GNUC__
#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));
/* Do not use __weak_extern, use __weak_reference instead */
#define __weak_extern(sym) \
__asm(".weak " _C_LABEL_STRING(#sym));
#if __GNUC_PREREQ__(4, 0)
#define __weak_reference(sym) __attribute__((__weakref__))
#else
#define __weak_reference(sym) ; __asm(".weak " _C_LABEL_STRING(#sym))
#endif
#define __warn_references(sym,msg) \
__asm(".stabs \"" msg "\",30,0,0,0"); \
__asm(".stabs \"_" #sym "\",1,0,0,0");
#else /* __STDC__ */
#define __weak_alias(alias,sym) ___weak_alias(_/**/alias,_/**/sym)
#define ___weak_alias(alias,sym) \
__asm(".weak alias\nalias = sym");
/* Do not use __weak_extern, use __weak_reference instead */
#define __weak_extern(sym) ___weak_extern(_/**/sym)
#define ___weak_extern(sym) \
__asm(".weak sym");
#if __GNUC_PREREQ__(4, 0)
#define __weak_reference(sym) __attribute__((__weakref__))
#else
#define ___weak_reference(sym) ; __asm(".weak sym");
#define __weak_reference(sym) ___weak_reference(_/**/sym)
#endif
#define __warn_references(sym,msg) \
__asm(".stabs msg,30,0,0,0"); \
__asm(".stabs \"_/**/sym\",1,0,0,0");
#endif /* __STDC__ */
#else /* __GNUC__ */
#define __warn_references(sym,msg)
#endif /* __GNUC__ */
#if defined(__sh__) /* XXX SH COFF */
#undef __indr_reference(sym,alias)
#undef __warn_references(sym,msg)
#define __warn_references(sym,msg)
#endif
#define __IDSTRING(_n,_s) \
__asm(".data ; .asciz \"" _s "\" ; .text")
#undef __KERNEL_RCSID
#define __RCSID(_s) __IDSTRING(rcsid,_s)
#define __SCCSID(_s)
#define __SCCSID2(_s)
#if 0 /* XXX userland __COPYRIGHTs have \ns in them */
#define __COPYRIGHT(_s) __IDSTRING(copyright,_s)
#else
#define __COPYRIGHT(_s) \
static const char copyright[] __attribute__((__unused__)) = _s
#endif
#if defined(USE_KERNEL_RCSIDS) || !defined(_KERNEL)
#define __KERNEL_RCSID(_n,_s) __IDSTRING(__CONCAT(rcsid,_n),_s)
#else
#define __KERNEL_RCSID(_n,_s)
#endif
#define __KERNEL_SCCSID(_n,_s)
#define __KERNEL_COPYRIGHT(_n, _s) __IDSTRING(__CONCAT(copyright,_n),_s)
#ifndef __lint__
#define __link_set_make_entry(set, sym, type) \
static void const * const \
__link_set_##set##_sym_##sym __used = &sym; \
__asm(".stabs \"___link_set_" #set "\", " #type ", 0, 0, _" #sym)
#else
#define __link_set_make_entry(set, sym, type) \
extern void const * const __link_set_##set##_sym_##sym
#endif /* __lint__ */
#define __link_set_add_text(set, sym) __link_set_make_entry(set, sym, 23)
#define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym, 23)
#define __link_set_add_data(set, sym) __link_set_make_entry(set, sym, 25)
#define __link_set_add_bss(set, sym) __link_set_make_entry(set, sym, 27)
#ifdef __minix
/* GNU binutils 2.x doesn't support a.out link sets. We need to workaround
* this by explicitely creating the N_SETV structure. */
#define __link_set_decl(set, ptype)
#else
#define __link_set_decl(set, ptype) \
extern struct { \
int __ls_length; \
ptype *__ls_items[1]; \
} __link_set_##set
#endif /* !__minix */
#define __link_set_start(set) (&(__link_set_##set).__ls_items[0])
#define __link_set_end(set) \
(&(__link_set_##set).__ls_items[(__link_set_##set).__ls_length])
#define __link_set_count(set) ((__link_set_##set).__ls_length)
#endif /* !_SYS_CDEFS_AOUT_H_ */