root / lab4 / .minix-src / include / sys / cdefs_aout.h @ 14
History | View | Annotate | Download (3.83 KB)
1 | 13 | up20180614 | /* $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_ */ |