| 1 | /* Table of DBX symbol codes for the GNU system. |
| 2 | Copyright (C) 1988 Free Software Foundation, Inc. |
| 3 | |
| 4 | This program is free software; you can redistribute it and/or modify |
| 5 | it under the terms of the GNU General Public License as published by |
| 6 | the Free Software Foundation; either version 1, or (at your option) |
| 7 | any later version. |
| 8 | |
| 9 | This program is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | GNU General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU General Public License |
| 15 | along with this program; if not, write to the Free Software |
| 16 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
| 17 | \f |
| 18 | /* Global variable. Only the name is significant. |
| 19 | To find the address, look in the corresponding external symbol. */ |
| 20 | __define_stab (N_GSYM, 0x20, "GSYM") |
| 21 | |
| 22 | /* Function name for BSD Fortran. Only the name is significant. |
| 23 | To find the address, look in the corresponding external symbol. */ |
| 24 | __define_stab (N_FNAME, 0x22, "FNAME") |
| 25 | |
| 26 | /* Function name or text-segment variable for C. Value is its address. |
| 27 | Desc is supposedly starting line number, but GCC doesn't set it |
| 28 | and DBX seems not to miss it. */ |
| 29 | __define_stab (N_FUN, 0x24, "FUN") |
| 30 | |
| 31 | /* Data-segment variable with internal linkage. Value is its address. */ |
| 32 | __define_stab (N_STSYM, 0x26, "STSYM") |
| 33 | |
| 34 | /* BSS-segment variable with internal linkage. Value is its address. */ |
| 35 | __define_stab (N_LCSYM, 0x28, "LCSYM") |
| 36 | |
| 37 | /* Name of main routine. Only the name is significant. |
| 38 | This is not used in C. */ |
| 39 | __define_stab (N_MAIN, 0x2a, "MAIN") |
| 40 | |
| 41 | /* Register variable. Value is number of register. */ |
| 42 | __define_stab (N_RSYM, 0x40, "RSYM") |
| 43 | |
| 44 | /* Structure or union element. Value is offset in the structure. */ |
| 45 | __define_stab (N_SSYM, 0x60, "SSYM") |
| 46 | |
| 47 | /* Parameter variable. Value is offset from argument pointer. |
| 48 | (On most machines the argument pointer is the same as the frame pointer. */ |
| 49 | __define_stab (N_PSYM, 0xa0, "PSYM") |
| 50 | |
| 51 | /* Automatic variable in the stack. Value is offset from frame pointer. |
| 52 | Also used for type descriptions. */ |
| 53 | __define_stab (N_LSYM, 0x80, "LSYM") |
| 54 | |
| 55 | /* Alternate entry point. Value is its address. */ |
| 56 | __define_stab (N_ENTRY, 0xa4, "ENTRY") |
| 57 | |
| 58 | /* Name of main source file. |
| 59 | Value is starting text address of the compilation. */ |
| 60 | __define_stab (N_SO, 0x64, "SO") |
| 61 | |
| 62 | /* Name of sub-source file. |
| 63 | Value is starting text address of the compilation. */ |
| 64 | __define_stab (N_SOL, 0x84, "SOL") |
| 65 | |
| 66 | /* Line number in text segment. Desc is the line number; |
| 67 | value is corresponding address. */ |
| 68 | __define_stab (N_SLINE, 0x44, "SLINE") |
| 69 | /* Similar, for data segment. */ |
| 70 | __define_stab (N_DSLINE, 0x66, "DSLINE") |
| 71 | /* Similar, for bss segment. */ |
| 72 | __define_stab (N_BSLINE, 0x68, "BSLINE") |
| 73 | |
| 74 | /* Beginning of an include file. Only Sun uses this. |
| 75 | In an object file, only the name is significant. |
| 76 | The Sun linker puts data into some of the other fields. */ |
| 77 | __define_stab (N_BINCL, 0x82, "BINCL") |
| 78 | /* End of an include file. No name. |
| 79 | These two act as brackets around the file's output. |
| 80 | In an object file, there is no significant data in this entry. |
| 81 | The Sun linker puts data into some of the fields. */ |
| 82 | __define_stab (N_EINCL, 0xa2, "EINCL") |
| 83 | /* Place holder for deleted include file. |
| 84 | This appears only in output from the Sun linker. */ |
| 85 | __define_stab (N_EXCL, 0xc2, "EXCL") |
| 86 | |
| 87 | /* Beginning of lexical block. |
| 88 | The desc is the nesting level in lexical blocks. |
| 89 | The value is the address of the start of the text for the block. |
| 90 | The variables declared inside the block *precede* the N_LBRAC symbol. */ |
| 91 | __define_stab (N_LBRAC, 0xc0, "LBRAC") |
| 92 | /* End of a lexical block. Desc matches the N_LBRAC's desc. |
| 93 | The value is the address of the end of the text for the block. */ |
| 94 | __define_stab (N_RBRAC, 0xe0, "RBRAC") |
| 95 | |
| 96 | /* Begin named common block. Only the name is significant. */ |
| 97 | __define_stab (N_BCOMM, 0xe2, "BCOMM") |
| 98 | /* Begin named common block. Only the name is significant |
| 99 | (and it should match the N_BCOMM). */ |
| 100 | __define_stab (N_ECOMM, 0xe4, "ECOMM") |
| 101 | /* End common (local name): value is address. |
| 102 | I'm not sure how this is used. */ |
| 103 | __define_stab (N_ECOML, 0xe8, "ECOML") |
| 104 | /* Second symbol entry containing a length-value for the preceding entry. |
| 105 | The value is the length. */ |
| 106 | __define_stab (N_LENG, 0xfe, "LENG") |
| 107 | |
| 108 | /* Global symbol in Pascal. |
| 109 | Supposedly the value is its line number; I'm skeptical. */ |
| 110 | __define_stab (N_PC, 0x30, "PC") |
| 111 | |
| 112 | /* Modula-2 compilation unit. Can someone say what info it contains? */ |
| 113 | __define_stab (N_M2C, 0x42, "M2C") |
| 114 | /* Modula-2 scope information. Can someone say what info it contains? */ |
| 115 | __define_stab (N_SCOPE, 0xc4, "SCOPE") |
| 116 | |
| 117 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. |
| 118 | Supposedly the field is "path to associated .cb file". */ |
| 119 | __define_stab (N_BROWS, 0x48, "BROWS") |
| 120 | |
| 121 | /* GNU C++ exception stabs. */ |
| 122 | |
| 123 | /* GNU C++ exception variable. Name is variable name. */ |
| 124 | __define_stab (N_EHDECL, 0x50, "EHDECL") |
| 125 | |
| 126 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if |
| 127 | this entry is immediately followed by a CAUGHT stab saying what exception |
| 128 | was caught. Multiple CAUGHT stabs means that multiple exceptions |
| 129 | can be caught here. If Desc is 0, it means all exceptions are caught |
| 130 | here. */ |
| 131 | __define_stab (N_CATCH, 0x54, "CATCH") |
| 132 | |
| 133 | /* These STAB's are used on Gould systems for Non-Base register symbols |
| 134 | or something like that. FIXME. I have assigned the values at random |
| 135 | since I don't have a Gould here. Fixups from Gould folk welcome... */ |
| 136 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") |
| 137 | __define_stab (N_NBDATA, 0xF2, "NBDATA") |
| 138 | __define_stab (N_NBBSS, 0xF4, "NBBSS") |
| 139 | __define_stab (N_NBSTS, 0xF6, "NBSTS") |
| 140 | __define_stab (N_NBLCS, 0xF8, "NBLCS") |
| 141 | __define_stab (N_NSYMS, 0xFA, "NSYMS") |
| 142 | \f |
| 143 | /* The above information, in matrix format. |
| 144 | |
| 145 | STAB MATRIX |
| 146 | _________________________________________________ |
| 147 | | 00 - 1F are not dbx stab symbols | |
| 148 | | Entries with bits 01 set are external symbols | |
| 149 | | N_UNDEF | N_ABS | N_TEXT | N_DATA | |
| 150 | | N_BSS | N_COMM | | N_FN | |
| 151 | |_______________________________________________| |
| 152 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | |
| 153 | | 28 LCSYM | 2A MAIN | 2C | 2E | |
| 154 | | 30 PC | 32 | 34 | 36 | |
| 155 | | 38 | 3A | 3C | 3E | |
| 156 | | 40 RSYM | 42 M2C | 44 SLINE | 46 | |
| 157 | | 48 BROWS | 4A | 4C | 4E | |
| 158 | | 50 EHDECL | 52 | 54 CATCH | 56 | |
| 159 | | 58 | 5A | 5C | 5E | |
| 160 | | 60 SSYM | 62 | 64 SO | 66 DSLINE | |
| 161 | | 68 BSLINE | 6A | 6C | 6E | |
| 162 | | 70 | 72 | 74 | 76 | |
| 163 | | 78 | 7A | 7C | 7E | |
| 164 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | |
| 165 | | 88 | 8A | 8C | 8E | |
| 166 | | 90 | 92 | 94 | 96 | |
| 167 | | 98 | 9A | 9C | 9E | |
| 168 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | |
| 169 | | A8 | AA | AC | AE | |
| 170 | | B0 | B2 | B4 | B6 | |
| 171 | | B8 | BA | BC | BE | |
| 172 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | |
| 173 | | C8 | CA | CC | CE | |
| 174 | | D0 | D2 | D4 | D6 | |
| 175 | | D8 | DA | DC | DE | |
| 176 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | |
| 177 | | E8 ECOML | EA | EC | EE | |
| 178 | | F0 | F2 | F4 | F6 | |
| 179 | | F8 | FA | FC | FE LENG | |
| 180 | +-----------------------------------------------+ |
| 181 | |
| 182 | */ |