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1da177e4 LT |
1 | #ifndef __A_OUT_GNU_H__ |
2 | #define __A_OUT_GNU_H__ | |
3 | ||
4 | #define __GNU_EXEC_MACROS__ | |
5 | ||
6 | #ifndef __STRUCT_EXEC_OVERRIDE__ | |
7 | ||
8 | #include <asm/a.out.h> | |
9 | ||
10 | #endif /* __STRUCT_EXEC_OVERRIDE__ */ | |
11 | ||
7fa30315 DH |
12 | #ifndef __ASSEMBLY__ |
13 | ||
1da177e4 LT |
14 | /* these go in the N_MACHTYPE field */ |
15 | enum machine_type { | |
16 | #if defined (M_OLDSUN2) | |
17 | M__OLDSUN2 = M_OLDSUN2, | |
18 | #else | |
19 | M_OLDSUN2 = 0, | |
20 | #endif | |
21 | #if defined (M_68010) | |
22 | M__68010 = M_68010, | |
23 | #else | |
24 | M_68010 = 1, | |
25 | #endif | |
26 | #if defined (M_68020) | |
27 | M__68020 = M_68020, | |
28 | #else | |
29 | M_68020 = 2, | |
30 | #endif | |
31 | #if defined (M_SPARC) | |
32 | M__SPARC = M_SPARC, | |
33 | #else | |
34 | M_SPARC = 3, | |
35 | #endif | |
36 | /* skip a bunch so we don't run into any of sun's numbers */ | |
37 | M_386 = 100, | |
38 | M_MIPS1 = 151, /* MIPS R3000/R3000 binary */ | |
39 | M_MIPS2 = 152 /* MIPS R6000/R4000 binary */ | |
40 | }; | |
41 | ||
42 | #if !defined (N_MAGIC) | |
43 | #define N_MAGIC(exec) ((exec).a_info & 0xffff) | |
44 | #endif | |
45 | #define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff)) | |
46 | #define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff) | |
47 | #define N_SET_INFO(exec, magic, type, flags) \ | |
48 | ((exec).a_info = ((magic) & 0xffff) \ | |
49 | | (((int)(type) & 0xff) << 16) \ | |
50 | | (((flags) & 0xff) << 24)) | |
51 | #define N_SET_MAGIC(exec, magic) \ | |
52 | ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff))) | |
53 | ||
54 | #define N_SET_MACHTYPE(exec, machtype) \ | |
55 | ((exec).a_info = \ | |
56 | ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16)) | |
57 | ||
58 | #define N_SET_FLAGS(exec, flags) \ | |
59 | ((exec).a_info = \ | |
60 | ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24)) | |
61 | ||
62 | /* Code indicating object file or impure executable. */ | |
63 | #define OMAGIC 0407 | |
64 | /* Code indicating pure executable. */ | |
65 | #define NMAGIC 0410 | |
66 | /* Code indicating demand-paged executable. */ | |
67 | #define ZMAGIC 0413 | |
68 | /* This indicates a demand-paged executable with the header in the text. | |
69 | The first page is unmapped to help trap NULL pointer references */ | |
70 | #define QMAGIC 0314 | |
71 | ||
72 | /* Code indicating core file. */ | |
73 | #define CMAGIC 0421 | |
74 | ||
75 | #if !defined (N_BADMAG) | |
76 | #define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \ | |
77 | && N_MAGIC(x) != NMAGIC \ | |
78 | && N_MAGIC(x) != ZMAGIC \ | |
79 | && N_MAGIC(x) != QMAGIC) | |
80 | #endif | |
81 | ||
82 | #define _N_HDROFF(x) (1024 - sizeof (struct exec)) | |
83 | ||
84 | #if !defined (N_TXTOFF) | |
85 | #define N_TXTOFF(x) \ | |
86 | (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \ | |
87 | (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec))) | |
88 | #endif | |
89 | ||
90 | #if !defined (N_DATOFF) | |
91 | #define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text) | |
92 | #endif | |
93 | ||
94 | #if !defined (N_TRELOFF) | |
95 | #define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data) | |
96 | #endif | |
97 | ||
98 | #if !defined (N_DRELOFF) | |
99 | #define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x)) | |
100 | #endif | |
101 | ||
102 | #if !defined (N_SYMOFF) | |
103 | #define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x)) | |
104 | #endif | |
105 | ||
106 | #if !defined (N_STROFF) | |
107 | #define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x)) | |
108 | #endif | |
109 | ||
110 | /* Address of text segment in memory after it is loaded. */ | |
111 | #if !defined (N_TXTADDR) | |
112 | #define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? PAGE_SIZE : 0) | |
113 | #endif | |
114 | ||
115 | /* Address of data segment in memory after it is loaded. | |
116 | Note that it is up to you to define SEGMENT_SIZE | |
117 | on machines not listed here. */ | |
118 | #if defined(vax) || defined(hp300) || defined(pyr) | |
119 | #define SEGMENT_SIZE page_size | |
120 | #endif | |
121 | #ifdef sony | |
122 | #define SEGMENT_SIZE 0x2000 | |
123 | #endif /* Sony. */ | |
124 | #ifdef is68k | |
125 | #define SEGMENT_SIZE 0x20000 | |
126 | #endif | |
127 | #if defined(m68k) && defined(PORTAR) | |
128 | #define PAGE_SIZE 0x400 | |
129 | #define SEGMENT_SIZE PAGE_SIZE | |
130 | #endif | |
131 | ||
132 | #ifdef linux | |
ed7b1889 | 133 | #ifdef __KERNEL__ |
1da177e4 | 134 | #include <asm/page.h> |
ed7b1889 KS |
135 | #else |
136 | #include <unistd.h> | |
137 | #endif | |
1da177e4 LT |
138 | #if defined(__i386__) || defined(__mc68000__) |
139 | #define SEGMENT_SIZE 1024 | |
140 | #else | |
141 | #ifndef SEGMENT_SIZE | |
ed7b1889 | 142 | #ifdef __KERNEL__ |
1da177e4 | 143 | #define SEGMENT_SIZE PAGE_SIZE |
ed7b1889 KS |
144 | #else |
145 | #define SEGMENT_SIZE getpagesize() | |
146 | #endif | |
1da177e4 LT |
147 | #endif |
148 | #endif | |
149 | #endif | |
150 | ||
8c0e33c1 | 151 | #define _N_SEGMENT_ROUND(x) ALIGN(x, SEGMENT_SIZE) |
1da177e4 LT |
152 | |
153 | #define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text) | |
154 | ||
155 | #ifndef N_DATADDR | |
156 | #define N_DATADDR(x) \ | |
157 | (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \ | |
158 | : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x)))) | |
159 | #endif | |
160 | ||
161 | /* Address of bss segment in memory after it is loaded. */ | |
162 | #if !defined (N_BSSADDR) | |
163 | #define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data) | |
164 | #endif | |
165 | \f | |
166 | #if !defined (N_NLIST_DECLARED) | |
167 | struct nlist { | |
168 | union { | |
169 | char *n_name; | |
170 | struct nlist *n_next; | |
171 | long n_strx; | |
172 | } n_un; | |
173 | unsigned char n_type; | |
174 | char n_other; | |
175 | short n_desc; | |
176 | unsigned long n_value; | |
177 | }; | |
178 | #endif /* no N_NLIST_DECLARED. */ | |
179 | ||
180 | #if !defined (N_UNDF) | |
181 | #define N_UNDF 0 | |
182 | #endif | |
183 | #if !defined (N_ABS) | |
184 | #define N_ABS 2 | |
185 | #endif | |
186 | #if !defined (N_TEXT) | |
187 | #define N_TEXT 4 | |
188 | #endif | |
189 | #if !defined (N_DATA) | |
190 | #define N_DATA 6 | |
191 | #endif | |
192 | #if !defined (N_BSS) | |
193 | #define N_BSS 8 | |
194 | #endif | |
195 | #if !defined (N_FN) | |
196 | #define N_FN 15 | |
197 | #endif | |
198 | ||
199 | #if !defined (N_EXT) | |
200 | #define N_EXT 1 | |
201 | #endif | |
202 | #if !defined (N_TYPE) | |
203 | #define N_TYPE 036 | |
204 | #endif | |
205 | #if !defined (N_STAB) | |
206 | #define N_STAB 0340 | |
207 | #endif | |
208 | ||
209 | /* The following type indicates the definition of a symbol as being | |
210 | an indirect reference to another symbol. The other symbol | |
211 | appears as an undefined reference, immediately following this symbol. | |
212 | ||
213 | Indirection is asymmetrical. The other symbol's value will be used | |
214 | to satisfy requests for the indirect symbol, but not vice versa. | |
215 | If the other symbol does not have a definition, libraries will | |
216 | be searched to find a definition. */ | |
217 | #define N_INDR 0xa | |
218 | ||
219 | /* The following symbols refer to set elements. | |
220 | All the N_SET[ATDB] symbols with the same name form one set. | |
221 | Space is allocated for the set in the text section, and each set | |
222 | element's value is stored into one word of the space. | |
223 | The first word of the space is the length of the set (number of elements). | |
224 | ||
225 | The address of the set is made into an N_SETV symbol | |
226 | whose name is the same as the name of the set. | |
227 | This symbol acts like a N_DATA global symbol | |
228 | in that it can satisfy undefined external references. */ | |
229 | ||
230 | /* These appear as input to LD, in a .o file. */ | |
231 | #define N_SETA 0x14 /* Absolute set element symbol */ | |
232 | #define N_SETT 0x16 /* Text set element symbol */ | |
233 | #define N_SETD 0x18 /* Data set element symbol */ | |
234 | #define N_SETB 0x1A /* Bss set element symbol */ | |
235 | ||
236 | /* This is output from LD. */ | |
237 | #define N_SETV 0x1C /* Pointer to set vector in data area. */ | |
238 | \f | |
239 | #if !defined (N_RELOCATION_INFO_DECLARED) | |
240 | /* This structure describes a single relocation to be performed. | |
241 | The text-relocation section of the file is a vector of these structures, | |
242 | all of which apply to the text section. | |
243 | Likewise, the data-relocation section applies to the data section. */ | |
244 | ||
245 | struct relocation_info | |
246 | { | |
247 | /* Address (within segment) to be relocated. */ | |
248 | int r_address; | |
249 | /* The meaning of r_symbolnum depends on r_extern. */ | |
250 | unsigned int r_symbolnum:24; | |
251 | /* Nonzero means value is a pc-relative offset | |
252 | and it should be relocated for changes in its own address | |
253 | as well as for changes in the symbol or section specified. */ | |
254 | unsigned int r_pcrel:1; | |
255 | /* Length (as exponent of 2) of the field to be relocated. | |
256 | Thus, a value of 2 indicates 1<<2 bytes. */ | |
257 | unsigned int r_length:2; | |
258 | /* 1 => relocate with value of symbol. | |
259 | r_symbolnum is the index of the symbol | |
260 | in file's the symbol table. | |
261 | 0 => relocate with the address of a segment. | |
262 | r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS | |
263 | (the N_EXT bit may be set also, but signifies nothing). */ | |
264 | unsigned int r_extern:1; | |
265 | /* Four bits that aren't used, but when writing an object file | |
266 | it is desirable to clear them. */ | |
267 | #ifdef NS32K | |
268 | unsigned r_bsr:1; | |
269 | unsigned r_disp:1; | |
270 | unsigned r_pad:2; | |
271 | #else | |
272 | unsigned int r_pad:4; | |
273 | #endif | |
274 | }; | |
275 | #endif /* no N_RELOCATION_INFO_DECLARED. */ | |
276 | ||
7fa30315 | 277 | #endif /*__ASSEMBLY__ */ |
1da177e4 | 278 | #endif /* __A_OUT_GNU_H__ */ |