1 /* $NetBSD: cdefs_aout.h,v 1.20 2006/05/18 17:55:38 christos Exp $ */ 2 3 /* 4 * Written by J.T. Conklin <jtc@wimsey.com> 01/17/95. 5 * Public domain. 6 */ 7 8 #ifndef _SYS_CDEFS_AOUT_H_ 9 #define _SYS_CDEFS_AOUT_H_ 10 11 #define _C_LABEL(x) __CONCAT(_,x) 12 #define _C_LABEL_STRING(x) "_"x 13 14 #if __STDC__ 15 #define ___RENAME(x) __asm(___STRING(_C_LABEL(x))) 16 #else 17 #define ___RENAME(x) ____RENAME(_/**/x) 18 #define ____RENAME(x) __asm(___STRING(x)) 19 #endif 20 21 #define __indr_reference(sym,alias) /* nada, since we do weak refs */ 22 23 #ifdef __GNUC__ 24 #if __STDC__ 25 #define __strong_alias(alias,sym) \ 26 __asm(".global " _C_LABEL_STRING(#alias) "\n" \ 27 _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym)); 28 #define __weak_alias(alias,sym) \ 29 __asm(".weak " _C_LABEL_STRING(#alias) "\n" \ 30 _C_LABEL_STRING(#alias) " = " _C_LABEL_STRING(#sym)); 31 32 /* Do not use __weak_extern, use __weak_reference instead */ 33 #define __weak_extern(sym) \ 34 __asm(".weak " _C_LABEL_STRING(#sym)); 35 36 #if __GNUC_PREREQ__(4, 0) 37 #define __weak_reference(sym) __attribute__((__weakref__)) 38 #else 39 #define __weak_reference(sym) ; __asm(".weak " _C_LABEL_STRING(#sym)) 40 #endif 41 42 #define __warn_references(sym,msg) \ 43 __asm(".stabs \"" msg "\",30,0,0,0"); \ 44 __asm(".stabs \"_" #sym "\",1,0,0,0"); 45 #else /* __STDC__ */ 46 #define __weak_alias(alias,sym) ___weak_alias(_/**/alias,_/**/sym) 47 #define ___weak_alias(alias,sym) \ 48 __asm(".weak alias\nalias = sym"); 49 /* Do not use __weak_extern, use __weak_reference instead */ 50 #define __weak_extern(sym) ___weak_extern(_/**/sym) 51 #define ___weak_extern(sym) \ 52 __asm(".weak sym"); 53 54 #if __GNUC_PREREQ__(4, 0) 55 #define __weak_reference(sym) __attribute__((__weakref__)) 56 #else 57 #define ___weak_reference(sym) ; __asm(".weak sym"); 58 #define __weak_reference(sym) ___weak_reference(_/**/sym) 59 #endif 60 61 #define __warn_references(sym,msg) \ 62 __asm(".stabs msg,30,0,0,0"); \ 63 __asm(".stabs \"_/**/sym\",1,0,0,0"); 64 #endif /* __STDC__ */ 65 #else /* __GNUC__ */ 66 #define __warn_references(sym,msg) 67 #endif /* __GNUC__ */ 68 69 #if defined(__sh__) /* XXX SH COFF */ 70 #undef __indr_reference(sym,alias) 71 #undef __warn_references(sym,msg) 72 #define __warn_references(sym,msg) 73 #endif 74 75 #define __IDSTRING(_n,_s) \ 76 __asm(".data ; .asciz \"" _s "\" ; .text") 77 78 #undef __KERNEL_RCSID 79 80 #define __RCSID(_s) __IDSTRING(rcsid,_s) 81 #define __SCCSID(_s) 82 #define __SCCSID2(_s) 83 #if 0 /* XXX userland __COPYRIGHTs have \ns in them */ 84 #define __COPYRIGHT(_s) __IDSTRING(copyright,_s) 85 #else 86 #define __COPYRIGHT(_s) \ 87 static const char copyright[] __attribute__((__unused__)) = _s 88 #endif 89 90 #if defined(USE_KERNEL_RCSIDS) || !defined(_KERNEL) 91 #define __KERNEL_RCSID(_n,_s) __IDSTRING(__CONCAT(rcsid,_n),_s) 92 #else 93 #define __KERNEL_RCSID(_n,_s) 94 #endif 95 #define __KERNEL_SCCSID(_n,_s) 96 #define __KERNEL_COPYRIGHT(_n, _s) __IDSTRING(__CONCAT(copyright,_n),_s) 97 98 #ifndef __lint__ 99 #define __link_set_make_entry(set, sym, type) \ 100 static void const * const \ 101 __link_set_##set##_sym_##sym __used = &sym; \ 102 __asm(".stabs \"___link_set_" #set "\", " #type ", 0, 0, _" #sym) 103 #else 104 #define __link_set_make_entry(set, sym, type) \ 105 extern void const * const __link_set_##set##_sym_##sym 106 #endif /* __lint__ */ 107 108 #define __link_set_add_text(set, sym) __link_set_make_entry(set, sym, 23) 109 #define __link_set_add_rodata(set, sym) __link_set_make_entry(set, sym, 23) 110 #define __link_set_add_data(set, sym) __link_set_make_entry(set, sym, 25) 111 #define __link_set_add_bss(set, sym) __link_set_make_entry(set, sym, 27) 112 113 #define __link_set_decl(set, ptype) \ 114 extern struct { \ 115 int __ls_length; \ 116 ptype *__ls_items[1]; \ 117 } __link_set_##set 118 119 #define __link_set_start(set) (&(__link_set_##set).__ls_items[0]) 120 #define __link_set_end(set) \ 121 (&(__link_set_##set).__ls_items[(__link_set_##set).__ls_length]) 122 123 #define __link_set_count(set) ((__link_set_##set).__ls_length) 124 125 #endif /* !_SYS_CDEFS_AOUT_H_ */ 126