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1.1 root 1: #ifndef XCOFF_H
2: #define XCOFF_H
3:
4: /* XCOFF executable loader */
5:
6: typedef struct COFF_filehdr_t {
7: uint16_t f_magic; /* magic number */
8: uint16_t f_nscns; /* number of sections */
9: uint32_t f_timdat; /* time & date stamp */
10: uint32_t f_symptr; /* file pointer to symtab */
11: uint32_t f_nsyms; /* number of symtab entries */
12: uint16_t f_opthdr; /* sizeof(optional hdr) */
13: uint16_t f_flags; /* flags */
14: } COFF_filehdr_t;
15:
16: /* IBM RS/6000 */
17:
18: #define U802WRMAGIC 0x02DA /* writeable text segments **chh** */
19: #define U802ROMAGIC 0x02DF /* readonly sharable text segments */
20: #define U802TOCMAGIC 0x02E1 /* readonly text segments and TOC */
21: #define U802TOMAGIC 0x01DF
22:
23: /*
24: * Bits for f_flags:
25: *
26: * F_RELFLG relocation info stripped from file
27: * F_EXEC file is executable (i.e. no unresolved external
28: * references)
29: * F_LNNO line numbers stripped from file
30: * F_LSYMS local symbols stripped from file
31: * F_MINMAL this is a minimal object file (".m") output of fextract
32: * F_UPDATE this is a fully bound update file, output of ogen
33: * F_SWABD this file has had its bytes swabbed (in names)
34: * F_AR16WR this file has the byte ordering of an AR16WR
35: * (e.g. 11/70) machine
36: * F_AR32WR this file has the byte ordering of an AR32WR machine
37: * (e.g. vax and iNTEL 386)
38: * F_AR32W this file has the byte ordering of an AR32W machine
39: * (e.g. 3b,maxi)
40: * F_PATCH file contains "patch" list in optional header
41: * F_NODF (minimal file only) no decision functions for
42: * replaced functions
43: */
44:
45: #define COFF_F_RELFLG 0000001
46: #define COFF_F_EXEC 0000002
47: #define COFF_F_LNNO 0000004
48: #define COFF_F_LSYMS 0000010
49: #define COFF_F_MINMAL 0000020
50: #define COFF_F_UPDATE 0000040
51: #define COFF_F_SWABD 0000100
52: #define COFF_F_AR16WR 0000200
53: #define COFF_F_AR32WR 0000400
54: #define COFF_F_AR32W 0001000
55: #define COFF_F_PATCH 0002000
56: #define COFF_F_NODF 0002000
57:
58: typedef struct COFF_aouthdr_t {
59: uint16_t magic; /* type of file */
60: uint16_t vstamp; /* version stamp */
61: uint32_t tsize; /* text size in bytes, padded to FW bdry */
62: uint32_t dsize; /* initialized data " " */
63: uint32_t bsize; /* uninitialized data " " */
64: uint32_t entry; /* entry pt. */
65: uint32_t text_start; /* base of text used for this file */
66: uint32_t data_start; /* base of data used for this file */
67: uint32_t o_toc; /* address of TOC */
68: uint16_t o_snentry; /* section number of entry point */
69: uint16_t o_sntext; /* section number of .text section */
70: uint16_t o_sndata; /* section number of .data section */
71: uint16_t o_sntoc; /* section number of TOC */
72: uint16_t o_snloader; /* section number of .loader section */
73: uint16_t o_snbss; /* section number of .bss section */
74: uint16_t o_algntext; /* .text alignment */
75: uint16_t o_algndata; /* .data alignment */
76: uint16_t o_modtype; /* module type (??) */
77: uint16_t o_cputype; /* cpu type */
78: uint32_t o_maxstack; /* max stack size (??) */
79: uint32_t o_maxdata; /* max data size (??) */
80: char o_resv2[12]; /* reserved */
81: } COFF_aouthdr_t;
82:
83: #define AOUT_MAGIC 0x010b
84:
85: typedef struct COFF_scnhdr_t {
86: char s_name[8]; /* section name */
87: uint32_t s_paddr; /* physical address, aliased s_nlib */
88: uint32_t s_vaddr; /* virtual address */
89: uint32_t s_size; /* section size */
90: uint32_t s_scnptr; /* file ptr to raw data for section */
91: uint32_t s_relptr; /* file ptr to relocation */
92: uint32_t s_lnnoptr; /* file ptr to line numbers */
93: uint16_t s_nreloc; /* number of relocation entries */
94: uint16_t s_nlnno; /* number of line number entries */
95: uint32_t s_flags; /* flags */
96: } COFF_scnhdr_t;
97:
98: #endif /* XCOFF_H */
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