Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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kernel
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linux
1#ifndef __A_OUT_GNU_H__
2#define __A_OUT_GNU_H__
3
4#ifdef CONFIG_ARCH_SUPPORTS_AOUT
5
6#define __GNU_EXEC_MACROS__
7
8#ifndef __STRUCT_EXEC_OVERRIDE__
9
10#include <asm/a.out.h>
11
12#endif /* __STRUCT_EXEC_OVERRIDE__ */
13
14#ifndef __ASSEMBLY__
15
16/* these go in the N_MACHTYPE field */
17enum machine_type {
18#if defined (M_OLDSUN2)
19 M__OLDSUN2 = M_OLDSUN2,
20#else
21 M_OLDSUN2 = 0,
22#endif
23#if defined (M_68010)
24 M__68010 = M_68010,
25#else
26 M_68010 = 1,
27#endif
28#if defined (M_68020)
29 M__68020 = M_68020,
30#else
31 M_68020 = 2,
32#endif
33#if defined (M_SPARC)
34 M__SPARC = M_SPARC,
35#else
36 M_SPARC = 3,
37#endif
38 /* skip a bunch so we don't run into any of sun's numbers */
39 M_386 = 100,
40 M_MIPS1 = 151, /* MIPS R3000/R3000 binary */
41 M_MIPS2 = 152 /* MIPS R6000/R4000 binary */
42};
43
44#if !defined (N_MAGIC)
45#define N_MAGIC(exec) ((exec).a_info & 0xffff)
46#endif
47#define N_MACHTYPE(exec) ((enum machine_type)(((exec).a_info >> 16) & 0xff))
48#define N_FLAGS(exec) (((exec).a_info >> 24) & 0xff)
49#define N_SET_INFO(exec, magic, type, flags) \
50 ((exec).a_info = ((magic) & 0xffff) \
51 | (((int)(type) & 0xff) << 16) \
52 | (((flags) & 0xff) << 24))
53#define N_SET_MAGIC(exec, magic) \
54 ((exec).a_info = (((exec).a_info & 0xffff0000) | ((magic) & 0xffff)))
55
56#define N_SET_MACHTYPE(exec, machtype) \
57 ((exec).a_info = \
58 ((exec).a_info&0xff00ffff) | ((((int)(machtype))&0xff) << 16))
59
60#define N_SET_FLAGS(exec, flags) \
61 ((exec).a_info = \
62 ((exec).a_info&0x00ffffff) | (((flags) & 0xff) << 24))
63
64/* Code indicating object file or impure executable. */
65#define OMAGIC 0407
66/* Code indicating pure executable. */
67#define NMAGIC 0410
68/* Code indicating demand-paged executable. */
69#define ZMAGIC 0413
70/* This indicates a demand-paged executable with the header in the text.
71 The first page is unmapped to help trap NULL pointer references */
72#define QMAGIC 0314
73
74/* Code indicating core file. */
75#define CMAGIC 0421
76
77#if !defined (N_BADMAG)
78#define N_BADMAG(x) (N_MAGIC(x) != OMAGIC \
79 && N_MAGIC(x) != NMAGIC \
80 && N_MAGIC(x) != ZMAGIC \
81 && N_MAGIC(x) != QMAGIC)
82#endif
83
84#define _N_HDROFF(x) (1024 - sizeof (struct exec))
85
86#if !defined (N_TXTOFF)
87#define N_TXTOFF(x) \
88 (N_MAGIC(x) == ZMAGIC ? _N_HDROFF((x)) + sizeof (struct exec) : \
89 (N_MAGIC(x) == QMAGIC ? 0 : sizeof (struct exec)))
90#endif
91
92#if !defined (N_DATOFF)
93#define N_DATOFF(x) (N_TXTOFF(x) + (x).a_text)
94#endif
95
96#if !defined (N_TRELOFF)
97#define N_TRELOFF(x) (N_DATOFF(x) + (x).a_data)
98#endif
99
100#if !defined (N_DRELOFF)
101#define N_DRELOFF(x) (N_TRELOFF(x) + N_TRSIZE(x))
102#endif
103
104#if !defined (N_SYMOFF)
105#define N_SYMOFF(x) (N_DRELOFF(x) + N_DRSIZE(x))
106#endif
107
108#if !defined (N_STROFF)
109#define N_STROFF(x) (N_SYMOFF(x) + N_SYMSIZE(x))
110#endif
111
112/* Address of text segment in memory after it is loaded. */
113#if !defined (N_TXTADDR)
114#define N_TXTADDR(x) (N_MAGIC(x) == QMAGIC ? PAGE_SIZE : 0)
115#endif
116
117/* Address of data segment in memory after it is loaded.
118 Note that it is up to you to define SEGMENT_SIZE
119 on machines not listed here. */
120#if defined(vax) || defined(hp300) || defined(pyr)
121#define SEGMENT_SIZE page_size
122#endif
123#ifdef sony
124#define SEGMENT_SIZE 0x2000
125#endif /* Sony. */
126#ifdef is68k
127#define SEGMENT_SIZE 0x20000
128#endif
129#if defined(m68k) && defined(PORTAR)
130#define PAGE_SIZE 0x400
131#define SEGMENT_SIZE PAGE_SIZE
132#endif
133
134#ifdef linux
135#ifdef __KERNEL__
136#include <asm/page.h>
137#else
138#include <unistd.h>
139#endif
140#if defined(__i386__) || defined(__mc68000__)
141#define SEGMENT_SIZE 1024
142#else
143#ifndef SEGMENT_SIZE
144#ifdef __KERNEL__
145#define SEGMENT_SIZE PAGE_SIZE
146#else
147#define SEGMENT_SIZE getpagesize()
148#endif
149#endif
150#endif
151#endif
152
153#define _N_SEGMENT_ROUND(x) ALIGN(x, SEGMENT_SIZE)
154
155#define _N_TXTENDADDR(x) (N_TXTADDR(x)+(x).a_text)
156
157#ifndef N_DATADDR
158#define N_DATADDR(x) \
159 (N_MAGIC(x)==OMAGIC? (_N_TXTENDADDR(x)) \
160 : (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
161#endif
162
163/* Address of bss segment in memory after it is loaded. */
164#if !defined (N_BSSADDR)
165#define N_BSSADDR(x) (N_DATADDR(x) + (x).a_data)
166#endif
167
168#if !defined (N_NLIST_DECLARED)
169struct nlist {
170 union {
171 char *n_name;
172 struct nlist *n_next;
173 long n_strx;
174 } n_un;
175 unsigned char n_type;
176 char n_other;
177 short n_desc;
178 unsigned long n_value;
179};
180#endif /* no N_NLIST_DECLARED. */
181
182#if !defined (N_UNDF)
183#define N_UNDF 0
184#endif
185#if !defined (N_ABS)
186#define N_ABS 2
187#endif
188#if !defined (N_TEXT)
189#define N_TEXT 4
190#endif
191#if !defined (N_DATA)
192#define N_DATA 6
193#endif
194#if !defined (N_BSS)
195#define N_BSS 8
196#endif
197#if !defined (N_FN)
198#define N_FN 15
199#endif
200
201#if !defined (N_EXT)
202#define N_EXT 1
203#endif
204#if !defined (N_TYPE)
205#define N_TYPE 036
206#endif
207#if !defined (N_STAB)
208#define N_STAB 0340
209#endif
210
211/* The following type indicates the definition of a symbol as being
212 an indirect reference to another symbol. The other symbol
213 appears as an undefined reference, immediately following this symbol.
214
215 Indirection is asymmetrical. The other symbol's value will be used
216 to satisfy requests for the indirect symbol, but not vice versa.
217 If the other symbol does not have a definition, libraries will
218 be searched to find a definition. */
219#define N_INDR 0xa
220
221/* The following symbols refer to set elements.
222 All the N_SET[ATDB] symbols with the same name form one set.
223 Space is allocated for the set in the text section, and each set
224 element's value is stored into one word of the space.
225 The first word of the space is the length of the set (number of elements).
226
227 The address of the set is made into an N_SETV symbol
228 whose name is the same as the name of the set.
229 This symbol acts like a N_DATA global symbol
230 in that it can satisfy undefined external references. */
231
232/* These appear as input to LD, in a .o file. */
233#define N_SETA 0x14 /* Absolute set element symbol */
234#define N_SETT 0x16 /* Text set element symbol */
235#define N_SETD 0x18 /* Data set element symbol */
236#define N_SETB 0x1A /* Bss set element symbol */
237
238/* This is output from LD. */
239#define N_SETV 0x1C /* Pointer to set vector in data area. */
240
241#if !defined (N_RELOCATION_INFO_DECLARED)
242/* This structure describes a single relocation to be performed.
243 The text-relocation section of the file is a vector of these structures,
244 all of which apply to the text section.
245 Likewise, the data-relocation section applies to the data section. */
246
247struct relocation_info
248{
249 /* Address (within segment) to be relocated. */
250 int r_address;
251 /* The meaning of r_symbolnum depends on r_extern. */
252 unsigned int r_symbolnum:24;
253 /* Nonzero means value is a pc-relative offset
254 and it should be relocated for changes in its own address
255 as well as for changes in the symbol or section specified. */
256 unsigned int r_pcrel:1;
257 /* Length (as exponent of 2) of the field to be relocated.
258 Thus, a value of 2 indicates 1<<2 bytes. */
259 unsigned int r_length:2;
260 /* 1 => relocate with value of symbol.
261 r_symbolnum is the index of the symbol
262 in file's the symbol table.
263 0 => relocate with the address of a segment.
264 r_symbolnum is N_TEXT, N_DATA, N_BSS or N_ABS
265 (the N_EXT bit may be set also, but signifies nothing). */
266 unsigned int r_extern:1;
267 /* Four bits that aren't used, but when writing an object file
268 it is desirable to clear them. */
269#ifdef NS32K
270 unsigned r_bsr:1;
271 unsigned r_disp:1;
272 unsigned r_pad:2;
273#else
274 unsigned int r_pad:4;
275#endif
276};
277#endif /* no N_RELOCATION_INFO_DECLARED. */
278
279#endif /*__ASSEMBLY__ */
280#else /* CONFIG_ARCH_SUPPORTS_AOUT */
281#ifndef __ASSEMBLY__
282struct exec {
283};
284#endif
285#endif /* CONFIG_ARCH_SUPPORTS_AOUT */
286#endif /* __A_OUT_GNU_H__ */