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1#ifndef __SPARC_A_OUT_H__
2#define __SPARC_A_OUT_H__
3
4#define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */
5#define SEGMENT_SIZE SPARC_PGSIZE /* whee... */
6
7#ifndef __ASSEMBLY__
8
9struct exec {
10 unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */
11 unsigned char a_toolversion:7;
12 unsigned char a_machtype;
13 unsigned short a_info;
14 unsigned int a_text; /* length of text, in bytes */
15 unsigned int a_data; /* length of data, in bytes */
16 unsigned int a_bss; /* length of bss, in bytes */
17 unsigned int a_syms; /* length of symbol table, in bytes */
18 unsigned int a_entry; /* where program begins */
19 unsigned int a_trsize;
20 unsigned int a_drsize;
21};
22
23#endif /* !__ASSEMBLY__ */
24
25/* Where in the file does the text information begin? */
26#define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
27
28/* Where do the Symbols start? */
29#define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \
30 (x).a_data + (x).a_trsize + \
31 (x).a_drsize)
32
33/* Where does text segment go in memory after being loaded? */
34#define N_TXTADDR(x) (unsigned long)(((N_MAGIC(x) == ZMAGIC) && \
35 ((x).a_entry < SPARC_PGSIZE)) ? \
36 0 : SPARC_PGSIZE)
37
38/* And same for the data segment.. */
39#define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \
40 (N_TXTADDR(x) + (x).a_text) \
41 : (unsigned long) (_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
42
43#define N_TRSIZE(a) ((a).a_trsize)
44#define N_DRSIZE(a) ((a).a_drsize)
45#define N_SYMSIZE(a) ((a).a_syms)
46
47#ifndef __ASSEMBLY__
48
49/*
50 * Sparc relocation types
51 */
52enum reloc_type
53{
54 RELOC_8,
55 RELOC_16,
56 RELOC_32, /* simplest relocs */
57 RELOC_DISP8,
58 RELOC_DISP16,
59 RELOC_DISP32, /* Disp's (pc-rel) */
60 RELOC_WDISP30,
61 RELOC_WDISP22, /* SR word disp's */
62 RELOC_HI22,
63 RELOC_22, /* SR 22-bit relocs */
64 RELOC_13,
65 RELOC_LO10, /* SR 13&10-bit relocs */
66 RELOC_SFA_BASE,
67 RELOC_SFA_OFF13, /* SR S.F.A. relocs */
68 RELOC_BASE10,
69 RELOC_BASE13,
70 RELOC_BASE22, /* base_relative pic */
71 RELOC_PC10,
72 RELOC_PC22, /* special pc-rel pic */
73 RELOC_JMP_TBL, /* jmp_tbl_rel in pic */
74 RELOC_SEGOFF16, /* ShLib offset-in-seg */
75 RELOC_GLOB_DAT,
76 RELOC_JMP_SLOT,
77 RELOC_RELATIVE /* rtld relocs */
78};
79
80/*
81 * Format of a relocation datum.
82 */
83struct relocation_info /* used when header.a_machtype == M_SPARC */
84{
85 unsigned int r_address; /* relocation addr */
86 unsigned int r_index:24; /* segment index or symbol index */
87 unsigned int r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */
88 unsigned int r_pad:2; /* <unused> */
89 enum reloc_type r_type:5; /* type of relocation to perform */
90 int r_addend; /* addend for relocation value */
91};
92
93#define N_RELOCATION_INFO_DECLARED 1
94
95#endif /* !(__ASSEMBLY__) */
96
97#endif /* __SPARC_A_OUT_H__ */