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