| 1 | /* IBM RS/6000 "XCOFF" file definitions for BFD.
|
|---|
| 2 | Copyright (C) 1990, 1991 Free Software Foundation, Inc.
|
|---|
| 3 | FIXME: Can someone provide a transliteration of this name into ASCII?
|
|---|
| 4 | Using the following chars caused a compiler warning on HIUX (so I replaced
|
|---|
| 5 | them with octal escapes), and isn't useful without an understanding of what
|
|---|
| 6 | character set it is.
|
|---|
| 7 | Written by Mimi Ph\373\364ng-Th\345o V\365 of IBM
|
|---|
| 8 | and John Gilmore of Cygnus Support. */
|
|---|
| 9 |
|
|---|
| 10 | /********************** FILE HEADER **********************/
|
|---|
| 11 |
|
|---|
| 12 | struct external_filehdr {
|
|---|
| 13 | char f_magic[2]; /* magic number */
|
|---|
| 14 | char f_nscns[2]; /* number of sections */
|
|---|
| 15 | char f_timdat[4]; /* time & date stamp */
|
|---|
| 16 | char f_symptr[4]; /* file pointer to symtab */
|
|---|
| 17 | char f_nsyms[4]; /* number of symtab entries */
|
|---|
| 18 | char f_opthdr[2]; /* sizeof(optional hdr) */
|
|---|
| 19 | char f_flags[2]; /* flags */
|
|---|
| 20 | };
|
|---|
| 21 |
|
|---|
| 22 | /* IBM RS/6000 */
|
|---|
| 23 | #define U802WRMAGIC 0730 /* writeable text segments **chh** */
|
|---|
| 24 | #define U802ROMAGIC 0735 /* readonly sharable text segments */
|
|---|
| 25 | #define U802TOCMAGIC 0737 /* readonly text segments and TOC */
|
|---|
| 26 |
|
|---|
| 27 | #define BADMAG(x) \
|
|---|
| 28 | ((x).f_magic != U802ROMAGIC && (x).f_magic != U802WRMAGIC && \
|
|---|
| 29 | (x).f_magic != U802TOCMAGIC)
|
|---|
| 30 |
|
|---|
| 31 | #define FILHDR struct external_filehdr
|
|---|
| 32 | #define FILHSZ 20
|
|---|
| 33 |
|
|---|
| 34 |
|
|---|
| 35 | /********************** AOUT "OPTIONAL HEADER" **********************/
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | typedef struct
|
|---|
| 39 | {
|
|---|
| 40 | unsigned char magic[2]; /* type of file */
|
|---|
| 41 | unsigned char vstamp[2]; /* version stamp */
|
|---|
| 42 | unsigned char tsize[4]; /* text size in bytes, padded to FW bdry */
|
|---|
| 43 | unsigned char dsize[4]; /* initialized data " " */
|
|---|
| 44 | unsigned char bsize[4]; /* uninitialized data " " */
|
|---|
| 45 | unsigned char entry[4]; /* entry pt. */
|
|---|
| 46 | unsigned char text_start[4]; /* base of text used for this file */
|
|---|
| 47 | unsigned char data_start[4]; /* base of data used for this file */
|
|---|
| 48 | unsigned char o_toc[4]; /* address of TOC */
|
|---|
| 49 | unsigned char o_snentry[2]; /* section number of entry point */
|
|---|
| 50 | unsigned char o_sntext[2]; /* section number of .text section */
|
|---|
| 51 | unsigned char o_sndata[2]; /* section number of .data section */
|
|---|
| 52 | unsigned char o_sntoc[2]; /* section number of TOC */
|
|---|
| 53 | unsigned char o_snloader[2]; /* section number of .loader section */
|
|---|
| 54 | unsigned char o_snbss[2]; /* section number of .bss section */
|
|---|
| 55 | unsigned char o_algntext[2]; /* .text alignment */
|
|---|
| 56 | unsigned char o_algndata[2]; /* .data alignment */
|
|---|
| 57 | unsigned char o_modtype[2]; /* module type (??) */
|
|---|
| 58 | unsigned char o_cputype[2]; /* cpu type */
|
|---|
| 59 | unsigned char o_maxstack[4]; /* max stack size (??) */
|
|---|
| 60 | unsigned char o_maxdata[4]; /* max data size (??) */
|
|---|
| 61 | unsigned char o_resv2[12]; /* reserved */
|
|---|
| 62 | }
|
|---|
| 63 | AOUTHDR;
|
|---|
| 64 |
|
|---|
| 65 | #define AOUTSZ 72
|
|---|
| 66 | #define SMALL_AOUTSZ (28)
|
|---|
| 67 | #define AOUTHDRSZ 72
|
|---|
| 68 |
|
|---|
| 69 | /********************** SECTION HEADER **********************/
|
|---|
| 70 |
|
|---|
| 71 |
|
|---|
| 72 | struct external_scnhdr {
|
|---|
| 73 | char s_name[8]; /* section name */
|
|---|
| 74 | char s_paddr[4]; /* physical address, aliased s_nlib */
|
|---|
| 75 | char s_vaddr[4]; /* virtual address */
|
|---|
| 76 | char s_size[4]; /* section size */
|
|---|
| 77 | char s_scnptr[4]; /* file ptr to raw data for section */
|
|---|
| 78 | char s_relptr[4]; /* file ptr to relocation */
|
|---|
| 79 | char s_lnnoptr[4]; /* file ptr to line numbers */
|
|---|
| 80 | char s_nreloc[2]; /* number of relocation entries */
|
|---|
| 81 | char s_nlnno[2]; /* number of line number entries*/
|
|---|
| 82 | char s_flags[4]; /* flags */
|
|---|
| 83 | };
|
|---|
| 84 |
|
|---|
| 85 | #define SCNHDR struct external_scnhdr
|
|---|
| 86 | #define SCNHSZ 40
|
|---|
| 87 |
|
|---|
| 88 | /********************** LINE NUMBERS **********************/
|
|---|
| 89 |
|
|---|
| 90 | /* 1 line number entry for every "breakpointable" source line in a section.
|
|---|
| 91 | * Line numbers are grouped on a per function basis; first entry in a function
|
|---|
| 92 | * grouping will have l_lnno = 0 and in place of physical address will be the
|
|---|
| 93 | * symbol table index of the function name.
|
|---|
| 94 | */
|
|---|
| 95 | struct external_lineno {
|
|---|
| 96 | union {
|
|---|
| 97 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
|
|---|
| 98 | char l_paddr[4]; /* (physical) address of line number */
|
|---|
| 99 | } l_addr;
|
|---|
| 100 | char l_lnno[2]; /* line number */
|
|---|
| 101 | };
|
|---|
| 102 |
|
|---|
| 103 |
|
|---|
| 104 | #define LINENO struct external_lineno
|
|---|
| 105 | #define LINESZ 6
|
|---|
| 106 |
|
|---|
| 107 |
|
|---|
| 108 | /********************** SYMBOLS **********************/
|
|---|
| 109 |
|
|---|
| 110 | #define E_SYMNMLEN 8 /* # characters in a symbol name */
|
|---|
| 111 | #define E_FILNMLEN 14 /* # characters in a file name */
|
|---|
| 112 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
|
|---|
| 113 |
|
|---|
| 114 | struct external_syment
|
|---|
| 115 | {
|
|---|
| 116 | union {
|
|---|
| 117 | char e_name[E_SYMNMLEN];
|
|---|
| 118 | struct {
|
|---|
| 119 | char e_zeroes[4];
|
|---|
| 120 | char e_offset[4];
|
|---|
| 121 | } e;
|
|---|
| 122 | } e;
|
|---|
| 123 | char e_value[4];
|
|---|
| 124 | char e_scnum[2];
|
|---|
| 125 | char e_type[2];
|
|---|
| 126 | char e_sclass[1];
|
|---|
| 127 | char e_numaux[1];
|
|---|
| 128 | };
|
|---|
| 129 |
|
|---|
| 130 |
|
|---|
| 131 |
|
|---|
| 132 | #define N_BTMASK (017)
|
|---|
| 133 | #define N_TMASK (060)
|
|---|
| 134 | #define N_BTSHFT (4)
|
|---|
| 135 | #define N_TSHIFT (2)
|
|---|
| 136 |
|
|---|
| 137 |
|
|---|
| 138 | union external_auxent {
|
|---|
| 139 | struct {
|
|---|
| 140 | char x_tagndx[4]; /* str, un, or enum tag indx */
|
|---|
| 141 | union {
|
|---|
| 142 | struct {
|
|---|
| 143 | char x_lnno[2]; /* declaration line number */
|
|---|
| 144 | char x_size[2]; /* str/union/array size */
|
|---|
| 145 | } x_lnsz;
|
|---|
| 146 | char x_fsize[4]; /* size of function */
|
|---|
| 147 | } x_misc;
|
|---|
| 148 | union {
|
|---|
| 149 | struct { /* if ISFCN, tag, or .bb */
|
|---|
| 150 | char x_lnnoptr[4]; /* ptr to fcn line # */
|
|---|
| 151 | char x_endndx[4]; /* entry ndx past block end */
|
|---|
| 152 | } x_fcn;
|
|---|
| 153 | struct { /* if ISARY, up to 4 dimen. */
|
|---|
| 154 | char x_dimen[E_DIMNUM][2];
|
|---|
|
|---|
