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1.1 ! root 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: ! 18: /* This contains contribution from Cygnus Support. */ ! 19: ! 20: /* Global variable. Only the name is significant. ! 21: To find the address, look in the corresponding external symbol. */ ! 22: __define_stab (N_GSYM, 0x20, "GSYM") ! 23: ! 24: /* Function name for BSD Fortran. Only the name is significant. ! 25: To find the address, look in the corresponding external symbol. */ ! 26: __define_stab (N_FNAME, 0x22, "FNAME") ! 27: ! 28: /* Function name or text-segment variable for C. Value is its address. ! 29: Desc is supposedly starting line number, but GCC doesn't set it ! 30: and DBX seems not to miss it. */ ! 31: __define_stab (N_FUN, 0x24, "FUN") ! 32: ! 33: /* Data-segment variable with internal linkage. Value is its address. */ ! 34: __define_stab (N_STSYM, 0x26, "STSYM") ! 35: ! 36: /* BSS-segment variable with internal linkage. Value is its address. */ ! 37: __define_stab (N_LCSYM, 0x28, "LCSYM") ! 38: ! 39: /* Name of main routine. Only the name is significant. ! 40: This is not used in C. */ ! 41: __define_stab (N_MAIN, 0x2a, "MAIN") ! 42: ! 43: /* Register variable. Value is number of register. */ ! 44: __define_stab (N_RSYM, 0x40, "RSYM") ! 45: ! 46: /* Structure or union element. Value is offset in the structure. */ ! 47: __define_stab (N_SSYM, 0x60, "SSYM") ! 48: ! 49: /* Parameter variable. Value is offset from argument pointer. ! 50: (On most machines the argument pointer is the same as the frame pointer. */ ! 51: __define_stab (N_PSYM, 0xa0, "PSYM") ! 52: ! 53: /* Automatic variable in the stack. Value is offset from frame pointer. ! 54: Also used for type descriptions. */ ! 55: __define_stab (N_LSYM, 0x80, "LSYM") ! 56: ! 57: /* Alternate entry point. Value is its address. */ ! 58: __define_stab (N_ENTRY, 0xa4, "ENTRY") ! 59: ! 60: /* Name of main source file. ! 61: Value is starting text address of the compilation. */ ! 62: __define_stab (N_SO, 0x64, "SO") ! 63: ! 64: /* Name of sub-source file. ! 65: Value is starting text address of the compilation. */ ! 66: __define_stab (N_SOL, 0x84, "SOL") ! 67: ! 68: /* Line number in text segment. Desc is the line number; ! 69: value is corresponding address. */ ! 70: __define_stab (N_SLINE, 0x44, "SLINE") ! 71: /* Similar, for data segment. */ ! 72: __define_stab (N_DSLINE, 0x46, "DSLINE") ! 73: /* Similar, for bss segment. */ ! 74: __define_stab (N_BSLINE, 0x48, "BSLINE") ! 75: ! 76: /* Beginning of an include file. Only Sun uses this. ! 77: In an object file, only the name is significant. ! 78: The Sun linker puts data into some of the other fields. */ ! 79: __define_stab (N_BINCL, 0x82, "BINCL") ! 80: /* End of an include file. No name. ! 81: These two act as brackets around the file's output. ! 82: In an object file, there is no significant data in this entry. ! 83: The Sun linker puts data into some of the fields. */ ! 84: __define_stab (N_EINCL, 0xa2, "EINCL") ! 85: /* Place holder for deleted include file. ! 86: This appears only in output from the Sun linker. */ ! 87: __define_stab (N_EXCL, 0xc2, "EXCL") ! 88: ! 89: /* Beginning of lexical block. ! 90: The desc is the nesting level in lexical blocks. ! 91: The value is the address of the start of the text for the block. ! 92: The variables declared inside the block *precede* the N_LBRAC symbol. */ ! 93: __define_stab (N_LBRAC, 0xc0, "LBRAC") ! 94: /* End of a lexical block. Desc matches the N_LBRAC's desc. ! 95: The value is the address of the end of the text for the block. */ ! 96: __define_stab (N_RBRAC, 0xe0, "RBRAC") ! 97: ! 98: /* Begin named common block. Only the name is significant. */ ! 99: __define_stab (N_BCOMM, 0xe2, "BCOMM") ! 100: /* Begin named common block. Only the name is significant ! 101: (and it should match the N_BCOMM). */ ! 102: __define_stab (N_ECOMM, 0xe4, "ECOMM") ! 103: /* End common (local name): value is address. ! 104: I'm not sure how this is used. */ ! 105: __define_stab (N_ECOML, 0xe8, "ECOML") ! 106: /* Second symbol entry containing a length-value for the preceding entry. ! 107: The value is the length. */ ! 108: __define_stab (N_LENG, 0xfe, "LENG") ! 109: ! 110: /* Global symbol in Pascal. ! 111: Supposedly the value is its line number; I'm skeptical. */ ! 112: __define_stab (N_PC, 0x30, "PC") ! 113: ! 114: /* Modula-2 compilation unit. Can someone say what info it contains? */ ! 115: __define_stab (N_M2C, 0x42, "M2C") ! 116: /* Modula-2 scope information. Can someone say what info it contains? */ ! 117: __define_stab (N_SCOPE, 0xc4, "SCOPE") ! 118: ! 119: /* Sun's source-code browser stabs. ?? Don't know what the fields are. ! 120: Supposedly the field is "path to associated .cb file". */ ! 121: /* This conflicts with the definition of N_BSLINE. */ ! 122: __define_stab (N_BROWS, 0x48, "BROWS") ! 123: ! 124: /* GNU C++ exception stabs. */ ! 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: /* The above information, in matrix format. ! 134: ! 135: STAB MATRIX ! 136: _________________________________________________ ! 137: | 00 - 1F are not dbx stab symbols | ! 138: | Entries with bits 01 set are external symbols | ! 139: | N_UNDEF | N_ABS | N_TEXT | N_DATA | ! 140: | N_BSS | N_COMM | | N_FN | ! 141: |_______________________________________________| ! 142: | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | ! 143: | 28 LCSYM | 2A MAIN | 2C | 2E | ! 144: | 30 PC | 32 | 34 | 36 | ! 145: | 38 | 3A | 3C | 3E | ! 146: | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | ! 147: | 48 BROWS/BSLINE | 4A | 4C | 4E | ! 148: | 50 EHDECL | 52 | 54 CATCH | 56 | ! 149: | 58 | 5A | 5C | 5E | ! 150: | 60 SSYM | 62 | 64 SO | 66 | ! 151: | 68 | 6A | 6C | 6E | ! 152: | 70 | 72 | 74 | 76 | ! 153: | 78 | 7A | 7C | 7E | ! 154: | 80 LSYM | 82 BINCL | 84 SOL | 86 | ! 155: | 88 | 8A | 8C | 8E | ! 156: | 90 | 92 | 94 | 96 | ! 157: | 98 | 9A | 9C | 9E | ! 158: | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | ! 159: | A8 | AA | AC | AE | ! 160: | B0 | B2 | B4 | B6 | ! 161: | B8 | BA | BC | BE | ! 162: | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | ! 163: | C8 | CA | CC | CE | ! 164: | D0 | D2 | D4 | D6 | ! 165: | D8 | DA | DC | DE | ! 166: | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | ! 167: | E8 ECOML | EA | EC | EE | ! 168: | F0 | F2 | F4 | F6 | ! 169: | F8 | FA | FC | FE LENG | ! 170: +-----------------------------------------------+ ! 171: ! 172: */
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