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