[444] | 1 | /* IBM RS/6000 "XCOFF" file definitions for BFD. |
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| 2 | Copyright (C) 1990, 1991, 2001, 2010 Free Software Foundation, Inc. |
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| 3 | Written by Mimi Phuong-Thao Vo of IBM |
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| 4 | and John Gilmore of Cygnus Support. |
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| 5 | |
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| 6 | This program is free software; you can redistribute it and/or modify |
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| 7 | it under the terms of the GNU General Public License as published by |
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| 8 | the Free Software Foundation; either version 3 of the License, or |
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| 9 | (at your option) any later version. |
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| 10 | |
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| 11 | This program is distributed in the hope that it will be useful, |
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| 12 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | GNU General Public License for more details. |
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| 15 | |
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| 16 | You should have received a copy of the GNU General Public License |
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| 17 | along with this program; if not, write to the Free Software |
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| 18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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| 19 | MA 02110-1301, USA. */ |
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| 20 | |
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| 21 | /********************** FILE HEADER **********************/ |
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| 22 | |
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| 23 | struct external_filehdr { |
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| 24 | char f_magic[2]; /* magic number */ |
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| 25 | char f_nscns[2]; /* number of sections */ |
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| 26 | char f_timdat[4]; /* time & date stamp */ |
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| 27 | char f_symptr[4]; /* file pointer to symtab */ |
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| 28 | char f_nsyms[4]; /* number of symtab entries */ |
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| 29 | char f_opthdr[2]; /* sizeof(optional hdr) */ |
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| 30 | char f_flags[2]; /* flags */ |
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| 31 | }; |
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| 32 | |
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| 33 | /* IBM RS/6000 */ |
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| 34 | #define U802WRMAGIC 0730 /* writeable text segments **chh** */ |
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| 35 | #define U802ROMAGIC 0735 /* readonly sharable text segments */ |
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| 36 | #define U802TOCMAGIC 0737 /* readonly text segments and TOC */ |
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| 37 | |
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| 38 | #define BADMAG(x) \ |
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| 39 | ((x).f_magic != U802ROMAGIC && (x).f_magic != U802WRMAGIC && \ |
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| 40 | (x).f_magic != U802TOCMAGIC) |
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| 41 | |
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| 42 | #define FILHDR struct external_filehdr |
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| 43 | #define FILHSZ 20 |
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| 44 | |
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| 45 | |
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| 46 | /********************** AOUT "OPTIONAL HEADER" **********************/ |
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| 47 | |
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| 48 | |
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| 49 | typedef struct |
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| 50 | { |
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| 51 | unsigned char magic[2]; /* type of file */ |
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| 52 | unsigned char vstamp[2]; /* version stamp */ |
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| 53 | unsigned char tsize[4]; /* text size in bytes, padded to FW bdry */ |
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| 54 | unsigned char dsize[4]; /* initialized data " " */ |
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| 55 | unsigned char bsize[4]; /* uninitialized data " " */ |
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| 56 | unsigned char entry[4]; /* entry pt. */ |
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| 57 | unsigned char text_start[4]; /* base of text used for this file */ |
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| 58 | unsigned char data_start[4]; /* base of data used for this file */ |
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| 59 | unsigned char o_toc[4]; /* address of TOC */ |
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| 60 | unsigned char o_snentry[2]; /* section number of entry point */ |
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| 61 | unsigned char o_sntext[2]; /* section number of .text section */ |
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| 62 | unsigned char o_sndata[2]; /* section number of .data section */ |
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| 63 | unsigned char o_sntoc[2]; /* section number of TOC */ |
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| 64 | unsigned char o_snloader[2]; /* section number of .loader section */ |
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| 65 | unsigned char o_snbss[2]; /* section number of .bss section */ |
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| 66 | unsigned char o_algntext[2]; /* .text alignment */ |
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| 67 | unsigned char o_algndata[2]; /* .data alignment */ |
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| 68 | unsigned char o_modtype[2]; /* module type (??) */ |
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| 69 | unsigned char o_cputype[2]; /* cpu type */ |
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| 70 | unsigned char o_maxstack[4]; /* max stack size (??) */ |
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| 71 | unsigned char o_maxdata[4]; /* max data size (??) */ |
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| 72 | unsigned char o_resv2[12]; /* reserved */ |
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| 73 | } |
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| 74 | AOUTHDR; |
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| 75 | |
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| 76 | #define AOUTSZ 72 |
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| 77 | #define SMALL_AOUTSZ (28) |
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| 78 | #define AOUTHDRSZ 72 |
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| 79 | |
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| 80 | /********************** SECTION HEADER **********************/ |
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| 81 | |
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| 82 | |
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| 83 | struct external_scnhdr { |
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| 84 | char s_name[8]; /* section name */ |
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| 85 | char s_paddr[4]; /* physical address, aliased s_nlib */ |
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| 86 | char s_vaddr[4]; /* virtual address */ |
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| 87 | char s_size[4]; /* section size */ |
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| 88 | char s_scnptr[4]; /* file ptr to raw data for section */ |
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| 89 | char s_relptr[4]; /* file ptr to relocation */ |
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| 90 | char s_lnnoptr[4]; /* file ptr to line numbers */ |
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| 91 | char s_nreloc[2]; /* number of relocation entries */ |
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| 92 | char s_nlnno[2]; /* number of line number entries*/ |
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| 93 | char s_flags[4]; /* flags */ |
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| 94 | }; |
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| 95 | |
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| 96 | #define SCNHDR struct external_scnhdr |
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| 97 | #define SCNHSZ 40 |
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| 98 | |
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| 99 | /********************** LINE NUMBERS **********************/ |
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| 100 | |
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| 101 | /* 1 line number entry for every "breakpointable" source line in a section. |
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| 102 | * Line numbers are grouped on a per function basis; first entry in a function |
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| 103 | * grouping will have l_lnno = 0 and in place of physical address will be the |
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| 104 | * symbol table index of the function name. |
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| 105 | */ |
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| 106 | struct external_lineno { |
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| 107 | union { |
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| 108 | char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/ |
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| 109 | char l_paddr[4]; /* (physical) address of line number */ |
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| 110 | } l_addr; |
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| 111 | char l_lnno[2]; /* line number */ |
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| 112 | }; |
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| 113 | |
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| 114 | |
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| 115 | #define LINENO struct external_lineno |
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| 116 | #define LINESZ 6 |
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| 117 | |
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| 118 | |
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| 119 | /********************** SYMBOLS **********************/ |
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| 120 | |
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| 121 | #define E_SYMNMLEN 8 /* # characters in a symbol name */ |
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| 122 | #define E_FILNMLEN 14 /* # characters in a file name */ |
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| 123 | #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */ |
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| 124 | |
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| 125 | struct external_syment |
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| 126 | { |
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| 127 | union { |
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| 128 | char e_name[E_SYMNMLEN]; |
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| 129 | struct { |
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| 130 | char e_zeroes[4]; |
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| 131 | char e_offset[4]; |
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| 132 | } e; |
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| 133 | } e; |
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| 134 | char e_value[4]; |
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| 135 | char e_scnum[2]; |
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| 136 | char e_type[2]; |
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| 137 | char e_sclass[1]; |
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| 138 | char e_numaux[1]; |
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| 139 | }; |
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| 140 | |
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| 141 | |
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| 142 | |
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| 143 | #define N_BTMASK (017) |
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| 144 | #define N_TMASK (060) |
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| 145 | #define N_BTSHFT (4) |
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| 146 | #define N_TSHIFT (2) |
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| 147 | |
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| 148 | |
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| 149 | union external_auxent { |
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| 150 | struct { |
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| 151 | char x_tagndx[4]; /* str, un, or enum tag indx */ |
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| 152 | union { |
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| 153 | struct { |
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| 154 | char x_lnno[2]; /* declaration line number */ |
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| 155 | char x_size[2]; /* str/union/array size */ |
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| 156 | } x_lnsz; |
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| 157 | char x_fsize[4]; /* size of function */ |
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| 158 | } x_misc; |
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| 159 | union { |
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| 160 | struct { /* if ISFCN, tag, or .bb */ |
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| 161 | char x_lnnoptr[4]; /* ptr to fcn line # */ |
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| 162 | char x_endndx[4]; /* entry ndx past block end */ |
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| 163 | } x_fcn; |
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| 164 | struct { /* if ISARY, up to 4 dimen. */ |
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| 165 | char x_dimen[E_DIMNUM][2]; |
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| 166 | } x_ary; |
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| 167 | } x_fcnary; |
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| 168 | char x_tvndx[2]; /* tv index */ |
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| 169 | } x_sym; |
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| 170 | |
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| 171 | struct { |
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| 172 | union { |
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| 173 | char x_fname[E_FILNMLEN]; |
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| 174 | struct { |
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| 175 | char x_zeroes[4]; |
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| 176 | char x_offset[4]; |
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| 177 | } x_n; |
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| 178 | } x_n; |
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| 179 | char x_ftype[1]; |
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| 180 | } x_file; |
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| 181 | |
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| 182 | struct { |
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| 183 | char x_scnlen[4]; /* section length */ |
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| 184 | char x_nreloc[2]; /* # relocation entries */ |
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| 185 | char x_nlinno[2]; /* # line numbers */ |
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| 186 | } x_scn; |
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| 187 | |
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| 188 | struct { |
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| 189 | char x_tvfill[4]; /* tv fill value */ |
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| 190 | char x_tvlen[2]; /* length of .tv */ |
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| 191 | char x_tvran[2][2]; /* tv range */ |
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| 192 | } x_tv; /* info about .tv section (in auxent of symbol .tv)) */ |
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| 193 | |
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| 194 | struct { |
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| 195 | unsigned char x_scnlen[4]; |
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| 196 | unsigned char x_parmhash[4]; |
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| 197 | unsigned char x_snhash[2]; |
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| 198 | unsigned char x_smtyp[1]; |
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| 199 | unsigned char x_smclas[1]; |
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| 200 | unsigned char x_stab[4]; |
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| 201 | unsigned char x_snstab[2]; |
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| 202 | } x_csect; |
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| 203 | |
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| 204 | }; |
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| 205 | |
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| 206 | #define SYMENT struct external_syment |
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| 207 | #define SYMESZ 18 |
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| 208 | #define AUXENT union external_auxent |
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| 209 | #define AUXESZ 18 |
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| 210 | #define DBXMASK 0x80 /* for dbx storage mask */ |
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| 211 | #define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK) |
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| 212 | |
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| 213 | |
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| 214 | |
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| 215 | /********************** RELOCATION DIRECTIVES **********************/ |
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| 216 | |
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| 217 | |
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| 218 | struct external_reloc { |
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| 219 | char r_vaddr[4]; |
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| 220 | char r_symndx[4]; |
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| 221 | char r_size[1]; |
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| 222 | char r_type[1]; |
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| 223 | }; |
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| 224 | |
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| 225 | |
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| 226 | #define RELOC struct external_reloc |
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| 227 | #define RELSZ 10 |
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| 228 | |
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| 229 | #define DEFAULT_DATA_SECTION_ALIGNMENT 4 |
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| 230 | #define DEFAULT_BSS_SECTION_ALIGNMENT 4 |
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| 231 | #define DEFAULT_TEXT_SECTION_ALIGNMENT 4 |
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| 232 | /* For new sections we havn't heard of before */ |
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| 233 | #define DEFAULT_SECTION_ALIGNMENT 4 |
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| 234 | |
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| 235 | /* The ldhdr structure. This appears at the start of the .loader |
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| 236 | section. */ |
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| 237 | |
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| 238 | struct external_ldhdr |
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| 239 | { |
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| 240 | bfd_byte l_version[4]; |
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| 241 | bfd_byte l_nsyms[4]; |
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| 242 | bfd_byte l_nreloc[4]; |
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| 243 | bfd_byte l_istlen[4]; |
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| 244 | bfd_byte l_nimpid[4]; |
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| 245 | bfd_byte l_impoff[4]; |
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| 246 | bfd_byte l_stlen[4]; |
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| 247 | bfd_byte l_stoff[4]; |
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| 248 | }; |
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| 249 | |
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| 250 | #define LDHDRSZ (8 * 4) |
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| 251 | |
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| 252 | struct external_ldsym |
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| 253 | { |
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| 254 | union |
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| 255 | { |
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| 256 | bfd_byte _l_name[E_SYMNMLEN]; |
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| 257 | struct |
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| 258 | { |
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| 259 | bfd_byte _l_zeroes[4]; |
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| 260 | bfd_byte _l_offset[4]; |
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| 261 | } _l_l; |
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| 262 | } _l; |
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| 263 | bfd_byte l_value[4]; |
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| 264 | bfd_byte l_scnum[2]; |
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| 265 | bfd_byte l_smtype[1]; |
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| 266 | bfd_byte l_smclas[1]; |
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| 267 | bfd_byte l_ifile[4]; |
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| 268 | bfd_byte l_parm[4]; |
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| 269 | }; |
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| 270 | |
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| 271 | #define LDSYMSZ (8 + 3 * 4 + 2 + 2) |
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| 272 | |
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| 273 | struct external_ldrel |
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| 274 | { |
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| 275 | bfd_byte l_vaddr[4]; |
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| 276 | bfd_byte l_symndx[4]; |
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| 277 | bfd_byte l_rtype[2]; |
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| 278 | bfd_byte l_rsecnm[2]; |
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| 279 | }; |
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| 280 | |
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| 281 | #define LDRELSZ (2 * 4 + 2 * 2) |
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| 282 | |
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| 283 | struct external_exceptab |
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| 284 | { |
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| 285 | union { |
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| 286 | bfd_byte e_symndx[4]; |
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| 287 | bfd_byte e_paddr[4]; |
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| 288 | } e_addr; |
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| 289 | bfd_byte e_lang[1]; |
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| 290 | bfd_byte e_reason[1]; |
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| 291 | }; |
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| 292 | |
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| 293 | #define EXCEPTSZ (4 + 2) |
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| 294 | |
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| 295 | /******************** Core files *************************/ |
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| 296 | |
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| 297 | struct external_core_dumpx |
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| 298 | { |
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| 299 | unsigned char c_signo[1]; |
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| 300 | unsigned char c_flag[1]; |
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| 301 | unsigned char c_entries[2]; |
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| 302 | |
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| 303 | unsigned char c_version[4]; |
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| 304 | |
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| 305 | unsigned char c_fdsinfox[8]; |
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| 306 | unsigned char c_loader[8]; |
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| 307 | unsigned char c_lsize[8]; |
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| 308 | |
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| 309 | unsigned char c_n_thr[4]; |
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| 310 | unsigned char c_reserved0[4]; |
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| 311 | unsigned char c_thr[8]; |
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| 312 | |
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| 313 | unsigned char c_segs[8]; |
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| 314 | unsigned char c_segregion[8]; |
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| 315 | |
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| 316 | unsigned char c_stack[8]; |
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| 317 | unsigned char c_stackorg[8]; |
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| 318 | unsigned char c_size[8]; |
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| 319 | |
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| 320 | unsigned char c_data[8]; |
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| 321 | unsigned char c_dataorg[8]; |
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| 322 | unsigned char c_datasize[8]; |
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| 323 | unsigned char c_sdorg[8]; |
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| 324 | unsigned char c_sdsize[8]; |
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| 325 | |
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| 326 | unsigned char c_vmmregions[8]; |
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| 327 | unsigned char c_vmm[8]; |
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| 328 | |
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| 329 | unsigned char c_impl[4]; |
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| 330 | unsigned char c_pad[4]; |
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| 331 | unsigned char c_cprs[8]; |
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| 332 | unsigned char c_reserved[7 * 8]; |
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| 333 | |
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| 334 | /* Followed by: |
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| 335 | - context of the faulting thread. |
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| 336 | - user structure. */ |
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| 337 | }; |
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| 338 | |
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| 339 | |
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| 340 | /* Core file verion. */ |
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| 341 | #define CORE_DUMPX_VERSION 0x0feeddb1 |
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| 342 | #define CORE_DUMPXX_VERSION 0x0feeddb2 |
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| 343 | |
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| 344 | struct external_ld_info32 |
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| 345 | { |
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| 346 | unsigned char ldinfo_next[4]; |
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| 347 | unsigned char core_offset[4]; |
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| 348 | unsigned char ldinfo_textorg[4]; |
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| 349 | unsigned char ldinfo_textsize[4]; |
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| 350 | unsigned char ldinfo_dataorg[4]; |
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| 351 | unsigned char ldinfo_datasize[4]; |
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| 352 | unsigned char ldinfo_filename[2]; |
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| 353 | }; |
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