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5191 | serge | 1 | /* Table of DBX symbol codes for the GNU system. |
6324 | serge | 2 | Copyright (C) 1988-2015 Free Software Foundation, Inc. |
5191 | serge | 3 | |
4 | This program is free software; you can redistribute it and/or |
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5 | modify it under the terms of the GNU General Public License as |
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6 | published by the Free Software Foundation; either version 3 of the |
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7 | License, or (at your option) any later version. |
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8 | |||
9 | This program is distributed in the hope that it will be useful, |
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10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | GNU General Public License for more details. |
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13 | |||
14 | You should have received a copy of the GNU General Public License |
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15 | along with this program; if not, write to the Free Software |
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16 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
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17 | MA 02110-1301, USA. */ |
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18 | |||
19 | /* New stab from Solaris 2. This uses an n_type of 0, which in a.out files |
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20 | overlaps the N_UNDF used for ordinary symbols. In ELF files, the |
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21 | debug information is in a different file section, so there is no conflict. |
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22 | This symbol's n_value gives the size of the string section associated |
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23 | with this file. The symbol's n_strx (relative to the just-updated |
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24 | string section start address) gives the name of the source file, |
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25 | e.g. "foo.c", without any path information. The symbol's n_desc gives |
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26 | the count of upcoming symbols associated with this file (not including |
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27 | this one). */ |
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28 | /* __define_stab (N_UNDF, 0x00, "UNDF") */ |
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29 | |||
30 | /* Global variable. Only the name is significant. |
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31 | To find the address, look in the corresponding external symbol. */ |
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32 | __define_stab (N_GSYM, 0x20, "GSYM") |
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33 | |||
34 | /* Function name for BSD Fortran. Only the name is significant. |
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35 | To find the address, look in the corresponding external symbol. */ |
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36 | __define_stab (N_FNAME, 0x22, "FNAME") |
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37 | |||
38 | /* Function name or text-segment variable for C. Value is its address. |
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39 | Desc is supposedly starting line number, but GCC doesn't set it |
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40 | and DBX seems not to miss it. */ |
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41 | __define_stab (N_FUN, 0x24, "FUN") |
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42 | |||
43 | /* Data-segment variable with internal linkage. Value is its address. |
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44 | "Static Sym". */ |
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45 | __define_stab (N_STSYM, 0x26, "STSYM") |
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46 | |||
47 | /* BSS-segment variable with internal linkage. Value is its address. */ |
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48 | __define_stab (N_LCSYM, 0x28, "LCSYM") |
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49 | |||
50 | /* Name of main routine. Only the name is significant. */ |
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51 | __define_stab (N_MAIN, 0x2a, "MAIN") |
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52 | |||
53 | /* Solaris2: Read-only data symbols. */ |
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54 | __define_stab (N_ROSYM, 0x2c, "ROSYM") |
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55 | |||
56 | /* MacOS X: |
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57 | The beginning of a relocatable function block - including stabs. */ |
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58 | __define_stab (N_BNSYM, 0x2e, "BNSYM") |
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59 | |||
60 | /* Global symbol in Pascal. |
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61 | Supposedly the value is its line number; I'm skeptical. */ |
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62 | __define_stab (N_PC, 0x30, "PC") |
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63 | |||
64 | /* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ |
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65 | __define_stab (N_NSYMS, 0x32, "NSYMS") |
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66 | |||
67 | /* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ |
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68 | __define_stab (N_NOMAP, 0x34, "NOMAP") |
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69 | |||
70 | /* New stab from Solaris 2. Like N_SO, but for the object file. Two in |
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71 | a row provide the build directory and the relative path of the .o from it. |
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72 | Solaris2 uses this to avoid putting the stabs info into the linked |
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73 | executable; this stab goes into the ".stab.index" section, and the debugger |
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74 | reads the real stabs directly from the .o files instead. */ |
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75 | __define_stab (N_OBJ, 0x38, "OBJ") |
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76 | |||
77 | /* New stab from Solaris 2. Options for the debugger, related to the |
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78 | source language for this module. E.g. whether to use ANSI |
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79 | integral promotions or traditional integral promotions. */ |
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80 | __define_stab (N_OPT, 0x3c, "OPT") |
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81 | |||
82 | /* Register variable. Value is number of register. */ |
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83 | __define_stab (N_RSYM, 0x40, "RSYM") |
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84 | |||
85 | /* Modula-2 compilation unit. Can someone say what info it contains? */ |
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86 | __define_stab (N_M2C, 0x42, "M2C") |
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87 | |||
88 | /* Line number in text segment. Desc is the line number; |
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89 | value is corresponding address. On Solaris2, the line number is |
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90 | relative to the start of the current function. */ |
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91 | __define_stab (N_SLINE, 0x44, "SLINE") |
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92 | |||
93 | /* Similar, for data segment. */ |
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94 | __define_stab (N_DSLINE, 0x46, "DSLINE") |
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95 | |||
96 | /* Similar, for bss segment. */ |
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97 | __define_stab (N_BSLINE, 0x48, "BSLINE") |
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98 | |||
99 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. |
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100 | Supposedly the field is "path to associated .cb file". THIS VALUE |
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101 | OVERLAPS WITH N_BSLINE! */ |
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102 | __define_stab_duplicate (N_BROWS, 0x48, "BROWS") |
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103 | |||
104 | /* GNU Modula-2 definition module dependency. Value is the modification time |
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105 | of the definition file. Other is non-zero if it is imported with the |
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106 | GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there |
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107 | are enough empty fields? */ |
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108 | __define_stab(N_DEFD, 0x4a, "DEFD") |
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109 | |||
110 | /* New in Solaris2. Function start/body/end line numbers. */ |
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111 | __define_stab(N_FLINE, 0x4C, "FLINE") |
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112 | |||
113 | /* MacOS X: This tells the end of a relocatable function + debugging info. */ |
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114 | __define_stab(N_ENSYM, 0x4E, "ENSYM") |
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115 | |||
116 | /* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 |
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117 | and one is for C++. Still,... */ |
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118 | /* GNU C++ exception variable. Name is variable name. */ |
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119 | __define_stab (N_EHDECL, 0x50, "EHDECL") |
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120 | /* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ |
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121 | __define_stab_duplicate (N_MOD2, 0x50, "MOD2") |
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122 | |||
123 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if |
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124 | this entry is immediately followed by a CAUGHT stab saying what exception |
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125 | was caught. Multiple CAUGHT stabs means that multiple exceptions |
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126 | can be caught here. If Desc is 0, it means all exceptions are caught |
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127 | here. */ |
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128 | __define_stab (N_CATCH, 0x54, "CATCH") |
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129 | |||
130 | /* Structure or union element. Value is offset in the structure. */ |
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131 | __define_stab (N_SSYM, 0x60, "SSYM") |
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132 | |||
133 | /* Solaris2: Last stab emitted for module. */ |
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134 | __define_stab (N_ENDM, 0x62, "ENDM") |
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135 | |||
136 | /* Name of main source file. |
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137 | Value is starting text address of the compilation. |
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138 | If multiple N_SO's appear, the first to contain a trailing / is the |
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139 | compilation directory. The first to not contain a trailing / is the |
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140 | source file name, relative to the compilation directory. Others (perhaps |
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141 | resulting from cfront) are ignored. |
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142 | On Solaris2, value is undefined, but desc is a source-language code. */ |
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143 | |||
144 | __define_stab (N_SO, 0x64, "SO") |
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145 | |||
146 | /* Apple: This is the stab that associated the .o file with the |
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147 | N_SO stab, in the case where debug info is mostly stored in the .o file. */ |
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148 | __define_stab (N_OSO, 0x66, "OSO") |
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149 | |||
150 | /* SunPro F77: Name of alias. */ |
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151 | __define_stab (N_ALIAS, 0x6c, "ALIAS") |
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152 | |||
153 | /* Automatic variable in the stack. Value is offset from frame pointer. |
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154 | Also used for type descriptions. */ |
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155 | __define_stab (N_LSYM, 0x80, "LSYM") |
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156 | |||
157 | /* Beginning of an include file. Only Sun uses this. |
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158 | In an object file, only the name is significant. |
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159 | The Sun linker puts data into some of the other fields. */ |
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160 | __define_stab (N_BINCL, 0x82, "BINCL") |
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161 | |||
162 | /* Name of sub-source file (#include file). |
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163 | Value is starting text address of the compilation. */ |
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164 | __define_stab (N_SOL, 0x84, "SOL") |
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165 | |||
166 | /* Parameter variable. Value is offset from argument pointer. |
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167 | (On most machines the argument pointer is the same as the frame pointer. */ |
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168 | __define_stab (N_PSYM, 0xa0, "PSYM") |
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169 | |||
170 | /* End of an include file. No name. |
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171 | This and N_BINCL act as brackets around the file's output. |
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172 | In an object file, there is no significant data in this entry. |
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173 | The Sun linker puts data into some of the fields. */ |
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174 | __define_stab (N_EINCL, 0xa2, "EINCL") |
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175 | |||
176 | /* Alternate entry point. Value is its address. */ |
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177 | __define_stab (N_ENTRY, 0xa4, "ENTRY") |
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178 | |||
179 | /* Beginning of lexical block. |
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180 | The desc is the nesting level in lexical blocks. |
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181 | The value is the address of the start of the text for the block. |
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182 | The variables declared inside the block *precede* the N_LBRAC symbol. |
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183 | On Solaris2, the value is relative to the start of the current function. */ |
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184 | __define_stab (N_LBRAC, 0xc0, "LBRAC") |
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185 | |||
186 | /* Place holder for deleted include file. Replaces a N_BINCL and everything |
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187 | up to the corresponding N_EINCL. The Sun linker generates these when |
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188 | it finds multiple identical copies of the symbols from an include file. |
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189 | This appears only in output from the Sun linker. */ |
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190 | __define_stab (N_EXCL, 0xc2, "EXCL") |
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191 | |||
192 | /* Modula-2 scope information. Can someone say what info it contains? */ |
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193 | __define_stab (N_SCOPE, 0xc4, "SCOPE") |
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194 | |||
195 | /* Solaris2: Patch Run Time Checker. */ |
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196 | __define_stab (N_PATCH, 0xd0, "PATCH") |
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197 | |||
198 | /* End of a lexical block. Desc matches the N_LBRAC's desc. |
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199 | The value is the address of the end of the text for the block. |
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200 | On Solaris2, the value is relative to the start of the current function. */ |
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201 | __define_stab (N_RBRAC, 0xe0, "RBRAC") |
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202 | |||
203 | /* Begin named common block. Only the name is significant. */ |
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204 | __define_stab (N_BCOMM, 0xe2, "BCOMM") |
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205 | |||
206 | /* End named common block. Only the name is significant |
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207 | (and it should match the N_BCOMM). */ |
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208 | __define_stab (N_ECOMM, 0xe4, "ECOMM") |
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209 | |||
210 | /* Member of a common block; value is offset within the common block. |
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211 | This should occur within a BCOMM/ECOMM pair. */ |
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212 | __define_stab (N_ECOML, 0xe8, "ECOML") |
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213 | |||
214 | /* Solaris2: Pascal "with" statement: type,,0,0,offset */ |
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215 | __define_stab (N_WITH, 0xea, "WITH") |
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216 | |||
217 | /* These STAB's are used on Gould systems for Non-Base register symbols |
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218 | or something like that. FIXME. I have assigned the values at random |
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219 | since I don't have a Gould here. Fixups from Gould folk welcome... */ |
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220 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") |
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221 | __define_stab (N_NBDATA, 0xF2, "NBDATA") |
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222 | __define_stab (N_NBBSS, 0xF4, "NBBSS") |
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223 | __define_stab (N_NBSTS, 0xF6, "NBSTS") |
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224 | __define_stab (N_NBLCS, 0xF8, "NBLCS") |
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225 | |||
226 | /* Second symbol entry containing a length-value for the preceding entry. |
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227 | The value is the length. */ |
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228 | __define_stab (N_LENG, 0xfe, "LENG") |
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229 | |||
230 | /* The above information, in matrix format. |
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231 | |||
232 | STAB MATRIX |
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233 | _________________________________________________ |
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234 | | 00 - 1F are not dbx stab symbols | |
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235 | | In most cases, the low bit is the EXTernal bit| |
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236 | |||
237 | | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | |
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238 | | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | |
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239 | |||
240 | | 08 BSS | 0A INDR | 0C FN_SEQ | 0E WEAKA | |
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241 | | 09 |EXT | 0B | 0D WEAKU | 0F WEAKT | |
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242 | |||
243 | | 10 WEAKD | 12 COMM | 14 SETA | 16 SETT | |
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244 | | 11 WEAKB | 13 | 15 | 17 | |
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245 | |||
246 | | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| |
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247 | | 19 | 1B | 1D | 1F FN | |
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248 | |||
249 | |_______________________________________________| |
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250 | | Debug entries with bit 01 set are unused. | |
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251 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | |
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252 | | 28 LCSYM | 2A MAIN | 2C ROSYM | 2E | |
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253 | | 30 PC | 32 NSYMS | 34 NOMAP | 36 | |
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254 | | 38 OBJ | 3A | 3C OPT | 3E | |
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255 | | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | |
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256 | | 48 BSLINE*| 4A DEFD | 4C FLINE | 4E | |
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257 | | 50 EHDECL*| 52 | 54 CATCH | 56 | |
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258 | | 58 | 5A | 5C | 5E | |
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259 | | 60 SSYM | 62 ENDM | 64 SO | 66 | |
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260 | | 68 | 6A | 6C ALIAS | 6E | |
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261 | | 70 | 72 | 74 | 76 | |
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262 | | 78 | 7A | 7C | 7E | |
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263 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | |
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264 | | 88 | 8A | 8C | 8E | |
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265 | | 90 | 92 | 94 | 96 | |
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266 | | 98 | 9A | 9C | 9E | |
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267 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | |
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268 | | A8 | AA | AC | AE | |
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269 | | B0 | B2 | B4 | B6 | |
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270 | | B8 | BA | BC | BE | |
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271 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | |
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272 | | C8 | CA | CC | CE | |
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273 | | D0 PATCH | D2 | D4 | D6 | |
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274 | | D8 | DA | DC | DE | |
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275 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | |
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276 | | E8 ECOML | EA WITH | EC | EE | |
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277 | | F0 | F2 | F4 | F6 | |
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278 | | F8 | FA | FC | FE LENG | |
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279 | +-----------------------------------------------+ |
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280 | * 50 EHDECL is also MOD2. |
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281 | * 48 BSLINE is also BROWS. |
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282 | */ |