1 /* $Id: a.out.h,v 1.8 2002/02/09 19:49:31 davem Exp $ */
2 #ifndef __SPARC64_A_OUT_H__
3 #define __SPARC64_A_OUT_H__
4
5 #define SPARC_PGSIZE 0x2000 /* Thanks to the sun4 architecture... */
6 #define SEGMENT_SIZE SPARC_PGSIZE /* whee... */
7
8 #ifndef __ASSEMBLY__
9
10 struct exec {
11 unsigned char a_dynamic:1; /* A __DYNAMIC is in this image */
12 unsigned char a_toolversion:7;
13 unsigned char a_machtype;
14 unsigned short a_info;
15 unsigned int a_text; /* length of text, in bytes */
16 unsigned int a_data; /* length of data, in bytes */
17 unsigned int a_bss; /* length of bss, in bytes */
18 unsigned int a_syms; /* length of symbol table, in bytes */
19 unsigned int a_entry; /* where program begins */
20 unsigned int a_trsize;
21 unsigned int a_drsize;
22 };
23
24 #endif /* !__ASSEMBLY__ */
25
26 /* Where in the file does the text information begin? */
27 #define N_TXTOFF(x) (N_MAGIC(x) == ZMAGIC ? 0 : sizeof (struct exec))
28
29 /* Where do the Symbols start? */
30 #define N_SYMOFF(x) (N_TXTOFF(x) + (x).a_text + \
31 (x).a_data + (x).a_trsize + \
32 (x).a_drsize)
33
34 /* Where does text segment go in memory after being loaded? */
35 #define N_TXTADDR(x) (unsigned long)(((N_MAGIC(x) == ZMAGIC) && \
36 ((x).a_entry < SPARC_PGSIZE)) ? \
37 0 : SPARC_PGSIZE)
38
39 /* And same for the data segment.. */
40 #define N_DATADDR(x) (N_MAGIC(x)==OMAGIC ? \
41 (N_TXTADDR(x) + (x).a_text) \
42 : (unsigned long)(_N_SEGMENT_ROUND (_N_TXTENDADDR(x))))
43
44 #define N_TRSIZE(a) ((a).a_trsize)
45 #define N_DRSIZE(a) ((a).a_drsize)
46 #define N_SYMSIZE(a) ((a).a_syms)
47
48 #ifndef __ASSEMBLY__
49
50 /*
51 * Sparc relocation types
52 */
53 enum reloc_type
54 {
55 RELOC_8,
56 RELOC_16,
57 RELOC_32, /* simplest relocs */
58 RELOC_DISP8,
59 RELOC_DISP16,
60 RELOC_DISP32, /* Disp's (pc-rel) */
61 RELOC_WDISP30,
62 RELOC_WDISP22, /* SR word disp's */
63 RELOC_HI22,
64 RELOC_22, /* SR 22-bit relocs */
65 RELOC_13,
66 RELOC_LO10, /* SR 13&10-bit relocs */
67 RELOC_SFA_BASE,
68 RELOC_SFA_OFF13, /* SR S.F.A. relocs */
69 RELOC_BASE10,
70 RELOC_BASE13,
71 RELOC_BASE22, /* base_relative pic */
72 RELOC_PC10,
73 RELOC_PC22, /* special pc-rel pic */
74 RELOC_JMP_TBL, /* jmp_tbl_rel in pic */
75 RELOC_SEGOFF16, /* ShLib offset-in-seg */
76 RELOC_GLOB_DAT,
77 RELOC_JMP_SLOT,
78 RELOC_RELATIVE /* rtld relocs */
79 };
80
81 /*
82 * Format of a relocation datum.
83 */
84 struct relocation_info /* used when header.a_machtype == M_SPARC */
85 {
86 unsigned int r_address; /* relocation addr */
87 unsigned int r_index:24; /* segment index or symbol index */
88 unsigned int r_extern:1; /* if F, r_index==SEG#; if T, SYM idx */
89 int r_pad:2; /* <unused> */
90 enum reloc_type r_type:5; /* type of relocation to perform */
91 int r_addend; /* addend for relocation value */
92 };
93
94 #define N_RELOCATION_INFO_DECLARED 1
95
96 #ifdef __KERNEL__
97
98 #define STACK_TOP (test_thread_flag(TIF_32BIT) ? 0xf0000000 : 0x80000000000L)
99
100 #endif
101
102 #endif /* !(__ASSEMBLY__) */
103
104 #endif /* !(__SPARC64_A_OUT_H__) */
105
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.