| 1 | /* Table of DBX symbol codes for the GNU system. |
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| 2 | Copyright (C) 1988 Free Software Foundation, Inc. |
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| 3 | |
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| 4 | This program is free software; you can redistribute it and/or modify |
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| 5 | it under the terms of the GNU General Public License as published by |
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| 6 | the Free Software Foundation; either version 1, or (at your option) |
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| 7 | any later version. |
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| 8 | |
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| 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 | |
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| 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., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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| 17 | |
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| 18 | /* This contains contribution from Cygnus Support. */ |
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| 19 | |
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| 20 | /* Global variable. Only the name is significant. |
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| 21 | To find the address, look in the corresponding external symbol. */ |
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| 22 | __define_stab (N_GSYM, 0x20, "GSYM") |
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| 23 | |
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| 24 | /* Function name for BSD Fortran. Only the name is significant. |
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| 25 | To find the address, look in the corresponding external symbol. */ |
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| 26 | __define_stab (N_FNAME, 0x22, "FNAME") |
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| 27 | |
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| 28 | /* Function name or text-segment variable for C. Value is its address. |
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| 29 | Desc is supposedly starting line number, but GCC doesn't set it |
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| 30 | and DBX seems not to miss it. */ |
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| 31 | __define_stab (N_FUN, 0x24, "FUN") |
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| 32 | |
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| 33 | /* Data-segment variable with internal linkage. Value is its address. |
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| 34 | "Static Sym". */ |
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| 35 | __define_stab (N_STSYM, 0x26, "STSYM") |
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| 36 | |
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| 37 | /* BSS-segment variable with internal linkage. Value is its address. */ |
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| 38 | __define_stab (N_LCSYM, 0x28, "LCSYM") |
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| 39 | |
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| 40 | /* Name of main routine. Only the name is significant. |
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| 41 | This is not used in C. */ |
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| 42 | __define_stab (N_MAIN, 0x2a, "MAIN") |
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| 43 | |
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| 44 | /* Global symbol in Pascal. |
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| 45 | Supposedly the value is its line number; I'm skeptical. */ |
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| 46 | __define_stab (N_PC, 0x30, "PC") |
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| 47 | |
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| 48 | /* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ |
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| 49 | __define_stab (N_NSYMS, 0x32, "NSYMS") |
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| 50 | |
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| 51 | /* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ |
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| 52 | __define_stab (N_NOMAP, 0x34, "NOMAP") |
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| 53 | |
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| 54 | /* New stab from Solaris. I don't know what it means, but it |
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| 55 | don't seem to contain useful information. */ |
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| 56 | __define_stab (N_OBJ, 0x38, "OBJ") |
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| 57 | |
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| 58 | /* New stab from Solaris. I don't know what it means, but it |
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| 59 | don't seem to contain useful information. Possibly related to the |
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| 60 | optimization flags used in this module. */ |
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| 61 | __define_stab (N_OPT, 0x3c, "OPT") |
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| 62 | |
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| 63 | /* Register variable. Value is number of register. */ |
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| 64 | __define_stab (N_RSYM, 0x40, "RSYM") |
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| 65 | |
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| 66 | /* Modula-2 compilation unit. Can someone say what info it contains? */ |
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| 67 | __define_stab (N_M2C, 0x42, "M2C") |
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| 68 | |
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| 69 | /* Line number in text segment. Desc is the line number; |
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| 70 | value is corresponding address. */ |
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| 71 | __define_stab (N_SLINE, 0x44, "SLINE") |
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| 72 | |
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| 73 | /* Similar, for data segment. */ |
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| 74 | __define_stab (N_DSLINE, 0x46, "DSLINE") |
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| 75 | |
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| 76 | /* Similar, for bss segment. */ |
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| 77 | __define_stab (N_BSLINE, 0x48, "BSLINE") |
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| 78 | |
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| 79 | /* Sun's source-code browser stabs. ?? Don't know what the fields are. |
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| 80 | Supposedly the field is "path to associated .cb file". THIS VALUE |
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| 81 | OVERLAPS WITH N_BSLINE! */ |
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| 82 | __define_stab (N_BROWS, 0x48, "BROWS") |
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| 83 | |
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| 84 | /* GNU Modula-2 definition module dependency. Value is the modification time |
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| 85 | of the definition file. Other is non-zero if it is imported with the |
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| 86 | GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there |
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| 87 | are enough empty fields? */ |
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| 88 | __define_stab(N_DEFD, 0x4a, "DEFD") |
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| 89 | |
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| 90 | /* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 |
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| 91 | and one is for C++. Still,... */ |
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| 92 | /* GNU C++ exception variable. Name is variable name. */ |
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| 93 | __define_stab (N_EHDECL, 0x50, "EHDECL") |
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| 94 | /* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ |
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| 95 | __define_stab (N_MOD2, 0x50, "MOD2") |
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| 96 | |
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| 97 | /* GNU C++ `catch' clause. Value is its address. Desc is nonzero if |
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| 98 | this entry is immediately followed by a CAUGHT stab saying what exception |
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| 99 | was caught. Multiple CAUGHT stabs means that multiple exceptions |
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| 100 | can be caught here. If Desc is 0, it means all exceptions are caught |
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| 101 | here. */ |
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| 102 | __define_stab (N_CATCH, 0x54, "CATCH") |
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| 103 | |
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| 104 | /* Structure or union element. Value is offset in the structure. */ |
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| 105 | __define_stab (N_SSYM, 0x60, "SSYM") |
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| 106 | |
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| 107 | /* Name of main source file. |
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| 108 | Value is starting text address of the compilation. */ |
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| 109 | __define_stab (N_SO, 0x64, "SO") |
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| 110 | |
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| 111 | /* Automatic variable in the stack. Value is offset from frame pointer. |
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| 112 | Also used for type descriptions. */ |
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| 113 | __define_stab (N_LSYM, 0x80, "LSYM") |
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| 114 | |
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| 115 | /* Beginning of an include file. Only Sun uses this. |
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| 116 | In an object file, only the name is significant. |
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| 117 | The Sun linker puts data into some of the other fields. */ |
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| 118 | __define_stab (N_BINCL, 0x82, "BINCL") |
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| 119 | |
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| 120 | /* Name of sub-source file (#include file). |
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| 121 | Value is starting text address of the compilation. */ |
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| 122 | __define_stab (N_SOL, 0x84, "SOL") |
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| 123 | |
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| 124 | /* Parameter variable. Value is offset from argument pointer. |
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| 125 | (On most machines the argument pointer is the same as the frame pointer. */ |
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| 126 | __define_stab (N_PSYM, 0xa0, "PSYM") |
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| 127 | |
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| 128 | /* End of an include file. No name. |
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| 129 | This and N_BINCL act as brackets around the file's output. |
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| 130 | In an object file, there is no significant data in this entry. |
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| 131 | The Sun linker puts data into some of the fields. */ |
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| 132 | __define_stab (N_EINCL, 0xa2, "EINCL") |
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| 133 | |
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| 134 | /* Alternate entry point. Value is its address. */ |
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| 135 | __define_stab (N_ENTRY, 0xa4, "ENTRY") |
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| 136 | |
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| 137 | /* Beginning of lexical block. |
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| 138 | The desc is the nesting level in lexical blocks. |
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| 139 | The value is the address of the start of the text for the block. |
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| 140 | The variables declared inside the block *precede* the N_LBRAC symbol. */ |
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| 141 | __define_stab (N_LBRAC, 0xc0, "LBRAC") |
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| 142 | |
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| 143 | /* Place holder for deleted include file. Replaces a N_BINCL and everything |
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| 144 | up to the corresponding N_EINCL. The Sun linker generates these when |
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| 145 | it finds multiple identical copies of the symbols from an include file. |
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| 146 | This appears only in output from the Sun linker. */ |
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| 147 | __define_stab (N_EXCL, 0xc2, "EXCL") |
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| 148 | |
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| 149 | /* Modula-2 scope information. Can someone say what info it contains? */ |
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| 150 | __define_stab (N_SCOPE, 0xc4, "SCOPE") |
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| 151 | |
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| 152 | /* End of a lexical block. Desc matches the N_LBRAC's desc. |
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| 153 | The value is the address of the end of the text for the block. */ |
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| 154 | __define_stab (N_RBRAC, 0xe0, "RBRAC") |
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| 155 | |
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| 156 | /* Begin named common block. Only the name is significant. */ |
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| 157 | __define_stab (N_BCOMM, 0xe2, "BCOMM") |
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| 158 | |
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| 159 | /* End named common block. Only the name is significant |
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| 160 | (and it should match the N_BCOMM). */ |
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| 161 | __define_stab (N_ECOMM, 0xe4, "ECOMM") |
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| 162 | |
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| 163 | /* End common (local name): value is address. |
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| 164 | I'm not sure how this is used. */ |
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| 165 | __define_stab (N_ECOML, 0xe8, "ECOML") |
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| 166 | |
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| 167 | /* These STAB's are used on Gould systems for Non-Base register symbols |
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| 168 | or something like that. FIXME. I have assigned the values at random |
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| 169 | since I don't have a Gould here. Fixups from Gould folk welcome... */ |
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| 170 | __define_stab (N_NBTEXT, 0xF0, "NBTEXT") |
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| 171 | __define_stab (N_NBDATA, 0xF2, "NBDATA") |
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| 172 | __define_stab (N_NBBSS, 0xF4, "NBBSS") |
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| 173 | __define_stab (N_NBSTS, 0xF6, "NBSTS") |
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| 174 | __define_stab (N_NBLCS, 0xF8, "NBLCS") |
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| 175 | |
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| 176 | /* Second symbol entry containing a length-value for the preceding entry. |
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| 177 | The value is the length. */ |
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| 178 | __define_stab (N_LENG, 0xfe, "LENG") |
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| 179 | |
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| 180 | /* The above information, in matrix format. |
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| 181 | |
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| 182 | STAB MATRIX |
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| 183 | _________________________________________________ |
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| 184 | | 00 - 1F are not dbx stab symbols | |
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| 185 | | In most cases, the low bit is the EXTernal bit| |
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| 186 | |
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| 187 | | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | |
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| 188 | | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | |
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| 189 | |
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| 190 | | 08 BSS | 0A INDR | 0C FN_SEQ | 0E | |
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| 191 | | 09 |EXT | 0B | 0D | 0F | |
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| 192 | |
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| 193 | | 10 | 12 COMM | 14 SETA | 16 SETT | |
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| 194 | | 11 | 13 | 15 | 17 | |
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| 195 | |
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| 196 | | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| |
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| 197 | | 19 | 1B | 1D | 1F FN | |
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| 198 | |
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| 199 | |_______________________________________________| |
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| 200 | | Debug entries with bit 01 set are unused. | |
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| 201 | | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | |
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| 202 | | 28 LCSYM | 2A MAIN | 2C | 2E | |
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| 203 | | 30 PC | 32 NSYMS | 34 NOMAP | 36 | |
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| 204 | | 38 OBJ | 3A | 3C OPT | 3E | |
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| 205 | | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | |
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| 206 | | 48 BSLINE*| 4A DEFD | 4C | 4E | |
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| 207 | | 50 EHDECL*| 52 | 54 CATCH | 56 | |
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| 208 | | 58 | 5A | 5C | 5E | |
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| 209 | | 60 SSYM | 62 | 64 SO | 66 | |
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| 210 | | 68 | 6A | 6C | 6E | |
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| 211 | | 70 | 72 | 74 | 76 | |
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| 212 | | 78 | 7A | 7C | 7E | |
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| 213 | | 80 LSYM | 82 BINCL | 84 SOL | 86 | |
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| 214 | | 88 | 8A | 8C | 8E | |
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| 215 | | 90 | 92 | 94 | 96 | |
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| 216 | | 98 | 9A | 9C | 9E | |
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| 217 | | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | |
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| 218 | | A8 | AA | AC | AE | |
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| 219 | | B0 | B2 | B4 | B6 | |
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| 220 | | B8 | BA | BC | BE | |
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| 221 | | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | |
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| 222 | | C8 | CA | CC | CE | |
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| 223 | | D0 | D2 | D4 | D6 | |
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| 224 | | D8 | DA | DC | DE | |
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| 225 | | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | |
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| 226 | | E8 ECOML | EA | EC | EE | |
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| 227 | | F0 | F2 | F4 | F6 | |
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| 228 | | F8 | FA | FC | FE LENG | |
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| 229 | +-----------------------------------------------+ |
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| 230 | * 50 EHDECL is also MOD2. |
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| 231 | * 48 BSLINE is also BROWS. |
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| 232 | */ |
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