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145 | halyavin | 1 | /* Table of DBX symbol codes for the GNU system. |
2 | Copyright (C) 1988, 1997 Free Software Foundation, Inc. |
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3 | This file is part of the GNU C Library. |
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4 | |||
5 | The GNU C Library is free software; you can redistribute it and/or |
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6 | modify it under the terms of the GNU Library General Public License as |
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7 | published by the Free Software Foundation; either version 2 of the |
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8 | License, or (at your option) any later version. |
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9 | |||
10 | The GNU C Library is distributed in the hope that it will be useful, |
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11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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13 | Library General Public License for more details. |
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14 | |||
15 | You should have received a copy of the GNU Library General Public |
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16 | License along with the GNU C Library; see the file COPYING.LIB. If not, |
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17 | write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
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18 | Boston, MA 02111-1307, USA. */ |
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19 | |||
20 | /* This contains contribution from Cygnus Support. */ |
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21 | |||
22 | /* Global variable. Only the name is significant. |
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23 | To find the address, look in the corresponding external symbol. */ |
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24 | __define_stab (N_GSYM, 0x20, "GSYM") |
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25 | |||
26 | /* Function name for BSD Fortran. Only the name is significant. |
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27 | To find the address, look in the corresponding external symbol. */ |
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28 | __define_stab (N_FNAME, 0x22, "FNAME") |
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29 | |||
30 | /* Function name or text-segment variable for C. Value is its address. |
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31 | Desc is supposedly starting line number, but GCC doesn't set it |
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32 | and DBX seems not to miss it. */ |
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33 | __define_stab (N_FUN, 0x24, "FUN") |
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34 | |||
35 | /* Data-segment variable with internal linkage. Value is its address. |
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36 | "Static Sym". */ |
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37 | __define_stab (N_STSYM, 0x26, "STSYM") |
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38 | |||
39 | /* BSS-segment variable with internal linkage. Value is its address. */ |
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40 | __define_stab (N_LCSYM, 0x28, "LCSYM") |
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41 | |||
42 | /* Name of main routine. Only the name is significant. |
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43 | This is not used in C. */ |
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44 | __define_stab (N_MAIN, 0x2a, "MAIN") |
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45 | |||
46 | /* Global symbol in Pascal. |
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47 | Supposedly the value is its line number; I'm skeptical. */ |
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48 | __define_stab (N_PC, 0x30, "PC") |
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49 | |||
50 | /* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ |
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51 | __define_stab (N_NSYMS, 0x32, "NSYMS") |
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52 | |||
53 | /* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ |
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54 | __define_stab (N_NOMAP, 0x34, "NOMAP") |
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55 | |||
56 | /* New stab from Solaris. I don't know what it means, but it |
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57 | don't seem to contain useful information. */ |
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58 | __define_stab (N_OBJ, 0x38, "OBJ") |
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59 | |||
60 | /* New stab from Solaris. I don't know what it means, but it |
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61 | don't seem to contain useful information. Possibly related to the |
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62 | optimization flags used in this module. */ |
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63 | __define_stab (N_OPT, 0x3c, "OPT") |
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64 | |||
65 | /* Register variable. Value is number of register. */ |
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66 | __define_stab (N_RSYM, 0x40, "RSYM") |
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67 | |||
68 | /* Modula-2 compilation unit. Can someone say what info it contains? */ |
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69 | __define_stab (N_M2C, 0x42, "M2C") |
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70 | |||
71 | /* Line number in text segment. Desc is the line number; |
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72 | value is corresponding address. */ |
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73 | __define_stab (N_SLINE, 0x44, "SLINE") |
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74 | |||
75 | /* Similar, for data segment. */ |
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76 | __define_stab (N_DSLINE, 0x46, "DSLINE") |
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77 | |||
78 | /* Similar, for bss segment. */ |
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79 | __define_stab (N_BSLINE, 0x48, "BSLINE") |
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80 | |||
81 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. |
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82 | Supposedly the field is "path to associated .cb file". THIS VALUE |
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83 | OVERLAPS WITH N_BSLINE! */ |
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84 | __define_stab (N_BROWS, 0x48, "BROWS") |
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85 | |||
86 | /* GNU Modula-2 definition module dependency. Value is the modification time |
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87 | of the definition file. Other is non-zero if it is imported with the |
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88 | GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there |
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89 | are enough empty fields? */ |
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90 | __define_stab(N_DEFD, 0x4a, "DEFD") |
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91 | |||
92 | /* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 |
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93 | and one is for C++. Still,... */ |
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94 | /* GNU C++ exception variable. Name is variable name. */ |
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95 | __define_stab (N_EHDECL, 0x50, "EHDECL") |
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96 | /* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ |
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97 | __define_stab (N_MOD2, 0x50, "MOD2") |
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98 | |||
99 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if |
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100 | this entry is immediately followed by a CAUGHT stab saying what exception |
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101 | was caught. Multiple CAUGHT stabs means that multiple exceptions |
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102 | can be caught here. If Desc is 0, it means all exceptions are caught |
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103 | here. */ |
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104 | __define_stab (N_CATCH, 0x54, "CATCH") |
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105 | |||
106 | /* Structure or union element. Value is offset in the structure. */ |
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107 | __define_stab (N_SSYM, 0x60, "SSYM") |
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108 | |||
109 | /* Name of main source file. |
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110 | Value is starting text address of the compilation. */ |
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111 | __define_stab (N_SO, 0x64, "SO") |
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112 | |||
113 | /* Automatic variable in the stack. Value is offset from frame pointer. |
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114 | Also used for type descriptions. */ |
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115 | __define_stab (N_LSYM, 0x80, "LSYM") |
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116 | |||
117 | /* Beginning of an include file. Only Sun uses this. |
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118 | In an object file, only the name is significant. |
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119 | The Sun linker puts data into some of the other fields. */ |
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120 | __define_stab (N_BINCL, 0x82, "BINCL") |
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121 | |||
122 | /* Name of sub-source file (#include file). |
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123 | Value is starting text address of the compilation. */ |
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124 | __define_stab (N_SOL, 0x84, "SOL") |
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125 | |||
126 | /* Parameter variable. Value is offset from argument pointer. |
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127 | (On most machines the argument pointer is the same as the frame pointer. */ |
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128 | __define_stab (N_PSYM, 0xa0, "PSYM") |
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129 | |||
130 | /* End of an include file. No name. |
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131 | This and N_BINCL act as brackets around the file's output. |
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132 | In an object file, there is no significant data in this entry. |
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133 | The Sun linker puts data into some of the fields. */ |
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134 | __define_stab (N_EINCL, 0xa2, "EINCL") |
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135 | |||
136 | /* Alternate entry point. Value is its address. */ |
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137 | __define_stab (N_ENTRY, 0xa4, "ENTRY") |
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138 | |||
139 | /* Beginning of lexical block. |
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140 | The desc is the nesting level in lexical blocks. |
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141 | The value is the address of the start of the text for the block. |
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142 | The variables declared inside the block *precede* the N_LBRAC symbol. */ |
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143 | __define_stab (N_LBRAC, 0xc0, "LBRAC") |
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144 | |||
145 | /* Place holder for deleted include file. Replaces a N_BINCL and everything |
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146 | up to the corresponding N_EINCL. The Sun linker generates these when |
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147 | it finds multiple identical copies of the symbols from an include file. |
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148 | This appears only in output from the Sun linker. */ |
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149 | __define_stab (N_EXCL, 0xc2, "EXCL") |
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150 | |||
151 | /* Modula-2 scope information. Can someone say what info it contains? */ |
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152 | __define_stab (N_SCOPE, 0xc4, "SCOPE") |
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153 | |||
154 | /* End of a lexical block. Desc matches the N_LBRAC's desc. |
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155 | The value is the address of the end of the text for the block. */ |
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156 | __define_stab (N_RBRAC, 0xe0, "RBRAC") |
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157 | |||
158 | /* Begin named common block. Only the name is significant. */ |
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159 | __define_stab (N_BCOMM, 0xe2, "BCOMM") |
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160 | |||
161 | /* End named common block. Only the name is significant |
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162 | (and it should match the N_BCOMM). */ |
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163 | __define_stab (N_ECOMM, 0xe4, "ECOMM") |
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164 | |||
165 | /* End common (local name): value is address. |
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166 | I'm not sure how this is used. */ |
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167 | __define_stab (N_ECOML, 0xe8, "ECOML") |
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168 | |||
169 | /* These STAB's are used on Gould systems for Non-Base register symbols |
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170 | or something like that. FIXME. I have assigned the values at random |
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171 | since I don't have a Gould here. Fixups from Gould folk welcome... */ |
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172 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") |
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173 | __define_stab (N_NBDATA, 0xF2, "NBDATA") |
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174 | __define_stab (N_NBBSS, 0xF4, "NBBSS") |
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175 | __define_stab (N_NBSTS, 0xF6, "NBSTS") |
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176 | __define_stab (N_NBLCS, 0xF8, "NBLCS") |
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177 | |||
178 | /* Second symbol entry containing a length-value for the preceding entry. |
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179 | The value is the length. */ |
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180 | __define_stab (N_LENG, 0xfe, "LENG") |
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181 | |||
182 | /* The above information, in matrix format. |
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183 | |||
184 | STAB MATRIX |
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185 | _________________________________________________ |
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186 | | 00 - 1F are not dbx stab symbols | |
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187 | | In most cases, the low bit is the EXTernal bit| |
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188 | |||
189 | | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | |
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190 | | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | |
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191 | |||
192 | | 08 BSS | 0A INDR | 0C FN_SEQ | 0E | |
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193 | | 09 |EXT | 0B | 0D | 0F | |
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194 | |||
195 | | 10 | 12 COMM | 14 SETA | 16 SETT | |
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196 | | 11 | 13 | 15 | 17 | |
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197 | |||
198 | | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| |
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199 | | 19 | 1B | 1D | 1F FN | |
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200 | |||
201 | |_______________________________________________| |
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202 | | Debug entries with bit 01 set are unused. | |
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203 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | |
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204 | | 28 LCSYM | 2A MAIN | 2C | 2E | |
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205 | | 30 PC | 32 NSYMS | 34 NOMAP | 36 | |
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206 | | 38 OBJ | 3A | 3C OPT | 3E | |
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207 | | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | |
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208 | | 48 BSLINE*| 4A DEFD | 4C | 4E | |
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209 | | 50 EHDECL*| 52 | 54 CATCH | 56 | |
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210 | | 58 | 5A | 5C | 5E | |
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211 | | 60 SSYM | 62 | 64 SO | 66 | |
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212 | | 68 | 6A | 6C | 6E | |
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213 | | 70 | 72 | 74 | 76 | |
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214 | | 78 | 7A | 7C | 7E | |
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215 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | |
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216 | | 88 | 8A | 8C | 8E | |
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217 | | 90 | 92 | 94 | 96 | |
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218 | | 98 | 9A | 9C | 9E | |
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219 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | |
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220 | | A8 | AA | AC | AE | |
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221 | | B0 | B2 | B4 | B6 | |
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222 | | B8 | BA | BC | BE | |
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223 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | |
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224 | | C8 | CA | CC | CE | |
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225 | | D0 | D2 | D4 | D6 | |
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226 | | D8 | DA | DC | DE | |
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227 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | |
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228 | | E8 ECOML | EA | EC | EE | |
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229 | | F0 | F2 | F4 | F6 | |
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230 | | F8 | FA | FC | FE LENG | |
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231 | +-----------------------------------------------+ |
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232 | * 50 EHDECL is also MOD2. |
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233 | * 48 BSLINE is also BROWS. |
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234 | */ |