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5191 | serge | 1 | /* IBM RS/6000 "XCOFF" file definitions for BFD. |
6324 | serge | 2 | Copyright (C) 1990-2015 Free Software Foundation, Inc. |
5191 | serge | 3 | Written by Mimi Phuong-Thao Vo of IBM |
4 | and John Gilmore of Cygnus Support. |
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5 | |||
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 | |||
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 | |||
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 | |||
21 | /********************** FILE HEADER **********************/ |
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22 | |||
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 | |||
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 | |||
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 | |||
42 | #define FILHDR struct external_filehdr |
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43 | #define FILHSZ 20 |
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44 | |||
45 | |||
46 | /********************** AOUT "OPTIONAL HEADER" **********************/ |
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47 | |||
48 | |||
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 | |||
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 | |||
80 | /********************** SECTION HEADER **********************/ |
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81 | |||
82 | |||
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 | |||
96 | #define SCNHDR struct external_scnhdr |
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97 | #define SCNHSZ 40 |
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98 | |||
99 | /********************** LINE NUMBERS **********************/ |
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100 | |||
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 | |||
114 | |||
115 | #define LINENO struct external_lineno |
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116 | #define LINESZ 6 |
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117 | |||
118 | |||
119 | /********************** SYMBOLS **********************/ |
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120 | |||
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 | |||
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 | |||
141 | |||
142 | |||
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 | |||
148 | |||
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 | |||
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 | |||
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 | |||
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 | |||
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 | |||
204 | }; |
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205 | |||
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 | |||
213 | |||
214 | |||
215 | /********************** RELOCATION DIRECTIVES **********************/ |
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216 | |||
217 | |||
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 | |||
225 | |||
226 | #define RELOC struct external_reloc |
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227 | #define RELSZ 10 |
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228 | |||
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 | |||
235 | /* The ldhdr structure. This appears at the start of the .loader |
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236 | section. */ |
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237 | |||
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 | |||
250 | #define LDHDRSZ (8 * 4) |
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251 | |||
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 | |||
271 | #define LDSYMSZ (8 + 3 * 4 + 2 + 2) |
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272 | |||
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 | |||
281 | #define LDRELSZ (2 * 4 + 2 * 2) |
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282 | |||
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 | |||
293 | #define EXCEPTSZ (4 + 2) |
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294 | |||
295 | /******************** Core files *************************/ |
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296 | |||
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 | |||
303 | unsigned char c_version[4]; |
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304 | |||
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 | |||
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 | |||
313 | unsigned char c_segs[8]; |
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314 | unsigned char c_segregion[8]; |
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315 | |||
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 | |||
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 | |||
326 | unsigned char c_vmmregions[8]; |
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327 | unsigned char c_vmm[8]; |
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328 | |||
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 | |||
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 | |||
339 | |||
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 | |||
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 | }; |