1*38fd1498Szrj/* Table of DBX symbol codes for the GNU system. 2*38fd1498Szrj Copyright (C) 1988-2018 Free Software Foundation, Inc. 3*38fd1498Szrj This file is part of the GNU C Library. 4*38fd1498Szrj 5*38fd1498Szrj The GNU C Library is free software; you can redistribute it and/or 6*38fd1498Szrj modify it under the terms of the GNU Library General Public License as 7*38fd1498Szrj published by the Free Software Foundation; either version 3 of the 8*38fd1498Szrj License, or (at your option) any later version. 9*38fd1498Szrj 10*38fd1498Szrj The GNU C Library is distributed in the hope that it will be useful, 11*38fd1498Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of 12*38fd1498Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13*38fd1498Szrj Library General Public License for more details. 14*38fd1498Szrj 15*38fd1498Szrj You should have received a copy of the GNU Library General Public 16*38fd1498Szrj License along with the GNU C Library; see the file COPYING3. If 17*38fd1498Szrj not see <http://www.gnu.org/licenses/>. */ 18*38fd1498Szrj 19*38fd1498Szrj/* This contains contribution from Cygnus Support. */ 20*38fd1498Szrj 21*38fd1498Szrj/* Global variable. Only the name is significant. 22*38fd1498Szrj To find the address, look in the corresponding external symbol. */ 23*38fd1498Szrj__define_stab (N_GSYM, 0x20, "GSYM") 24*38fd1498Szrj 25*38fd1498Szrj/* Function name for BSD Fortran. Only the name is significant. 26*38fd1498Szrj To find the address, look in the corresponding external symbol. */ 27*38fd1498Szrj__define_stab (N_FNAME, 0x22, "FNAME") 28*38fd1498Szrj 29*38fd1498Szrj/* Function name or text-segment variable for C. Value is its address. 30*38fd1498Szrj Desc is supposedly starting line number, but GCC doesn't set it 31*38fd1498Szrj and DBX seems not to miss it. */ 32*38fd1498Szrj__define_stab (N_FUN, 0x24, "FUN") 33*38fd1498Szrj 34*38fd1498Szrj/* Data-segment variable with internal linkage. Value is its address. 35*38fd1498Szrj "Static Sym". */ 36*38fd1498Szrj__define_stab (N_STSYM, 0x26, "STSYM") 37*38fd1498Szrj 38*38fd1498Szrj/* BSS-segment variable with internal linkage. Value is its address. */ 39*38fd1498Szrj__define_stab (N_LCSYM, 0x28, "LCSYM") 40*38fd1498Szrj 41*38fd1498Szrj/* Begin function marker. */ 42*38fd1498Szrj__define_stab (N_BNSYM, 0x2e, "BNSYM") 43*38fd1498Szrj 44*38fd1498Szrj/* End function marker. */ 45*38fd1498Szrj__define_stab (N_ENSYM, 0x4e, "ENSYM") 46*38fd1498Szrj 47*38fd1498Szrj/* Name of main routine. Only the name is significant. 48*38fd1498Szrj This is not used in C. */ 49*38fd1498Szrj__define_stab (N_MAIN, 0x2a, "MAIN") 50*38fd1498Szrj 51*38fd1498Szrj/* Global symbol in Pascal. 52*38fd1498Szrj Supposedly the value is its line number; I'm skeptical. */ 53*38fd1498Szrj__define_stab (N_PC, 0x30, "PC") 54*38fd1498Szrj 55*38fd1498Szrj/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ 56*38fd1498Szrj__define_stab (N_NSYMS, 0x32, "NSYMS") 57*38fd1498Szrj 58*38fd1498Szrj/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ 59*38fd1498Szrj__define_stab (N_NOMAP, 0x34, "NOMAP") 60*38fd1498Szrj 61*38fd1498Szrj/* New stab from Solaris. I don't know what it means, but it 62*38fd1498Szrj don't seem to contain useful information. */ 63*38fd1498Szrj__define_stab (N_OBJ, 0x38, "OBJ") 64*38fd1498Szrj 65*38fd1498Szrj/* New stab from Solaris. I don't know what it means, but it 66*38fd1498Szrj don't seem to contain useful information. Possibly related to the 67*38fd1498Szrj optimization flags used in this module. */ 68*38fd1498Szrj__define_stab (N_OPT, 0x3c, "OPT") 69*38fd1498Szrj 70*38fd1498Szrj/* Register variable. Value is number of register. */ 71*38fd1498Szrj__define_stab (N_RSYM, 0x40, "RSYM") 72*38fd1498Szrj 73*38fd1498Szrj/* Modula-2 compilation unit. Can someone say what info it contains? */ 74*38fd1498Szrj__define_stab (N_M2C, 0x42, "M2C") 75*38fd1498Szrj 76*38fd1498Szrj/* Line number in text segment. Desc is the line number; 77*38fd1498Szrj value is corresponding address. */ 78*38fd1498Szrj__define_stab (N_SLINE, 0x44, "SLINE") 79*38fd1498Szrj 80*38fd1498Szrj/* Similar, for data segment. */ 81*38fd1498Szrj__define_stab (N_DSLINE, 0x46, "DSLINE") 82*38fd1498Szrj 83*38fd1498Szrj/* Similar, for bss segment. */ 84*38fd1498Szrj__define_stab (N_BSLINE, 0x48, "BSLINE") 85*38fd1498Szrj 86*38fd1498Szrj/* Sun's source-code browser stabs. ?? Don't know what the fields are. 87*38fd1498Szrj Supposedly the field is "path to associated .cb file". THIS VALUE 88*38fd1498Szrj OVERLAPS WITH N_BSLINE! */ 89*38fd1498Szrj__define_stab (N_BROWS, 0x48, "BROWS") 90*38fd1498Szrj 91*38fd1498Szrj/* GNU Modula-2 definition module dependency. Value is the modification time 92*38fd1498Szrj of the definition file. Other is nonzero if it is imported with the 93*38fd1498Szrj GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there 94*38fd1498Szrj are enough empty fields? */ 95*38fd1498Szrj__define_stab(N_DEFD, 0x4a, "DEFD") 96*38fd1498Szrj 97*38fd1498Szrj/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 98*38fd1498Szrj and one is for C++. Still,... */ 99*38fd1498Szrj/* GNU C++ exception variable. Name is variable name. */ 100*38fd1498Szrj__define_stab (N_EHDECL, 0x50, "EHDECL") 101*38fd1498Szrj/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ 102*38fd1498Szrj__define_stab (N_MOD2, 0x50, "MOD2") 103*38fd1498Szrj 104*38fd1498Szrj/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if 105*38fd1498Szrj this entry is immediately followed by a CAUGHT stab saying what exception 106*38fd1498Szrj was caught. Multiple CAUGHT stabs means that multiple exceptions 107*38fd1498Szrj can be caught here. If Desc is 0, it means all exceptions are caught 108*38fd1498Szrj here. */ 109*38fd1498Szrj__define_stab (N_CATCH, 0x54, "CATCH") 110*38fd1498Szrj 111*38fd1498Szrj/* Structure or union element. Value is offset in the structure. */ 112*38fd1498Szrj__define_stab (N_SSYM, 0x60, "SSYM") 113*38fd1498Szrj 114*38fd1498Szrj/* Name of main source file. 115*38fd1498Szrj Value is starting text address of the compilation. */ 116*38fd1498Szrj__define_stab (N_SO, 0x64, "SO") 117*38fd1498Szrj 118*38fd1498Szrj/* Automatic variable in the stack. Value is offset from frame pointer. 119*38fd1498Szrj Also used for type descriptions. */ 120*38fd1498Szrj__define_stab (N_LSYM, 0x80, "LSYM") 121*38fd1498Szrj 122*38fd1498Szrj/* Beginning of an include file. Only Sun uses this. 123*38fd1498Szrj In an object file, only the name is significant. 124*38fd1498Szrj The Sun linker puts data into some of the other fields. */ 125*38fd1498Szrj__define_stab (N_BINCL, 0x82, "BINCL") 126*38fd1498Szrj 127*38fd1498Szrj/* Name of sub-source file (#include file). 128*38fd1498Szrj Value is starting text address of the compilation. */ 129*38fd1498Szrj__define_stab (N_SOL, 0x84, "SOL") 130*38fd1498Szrj 131*38fd1498Szrj/* Parameter variable. Value is offset from argument pointer. 132*38fd1498Szrj (On most machines the argument pointer is the same as the frame pointer. */ 133*38fd1498Szrj__define_stab (N_PSYM, 0xa0, "PSYM") 134*38fd1498Szrj 135*38fd1498Szrj/* End of an include file. No name. 136*38fd1498Szrj This and N_BINCL act as brackets around the file's output. 137*38fd1498Szrj In an object file, there is no significant data in this entry. 138*38fd1498Szrj The Sun linker puts data into some of the fields. */ 139*38fd1498Szrj__define_stab (N_EINCL, 0xa2, "EINCL") 140*38fd1498Szrj 141*38fd1498Szrj/* Alternate entry point. Value is its address. */ 142*38fd1498Szrj__define_stab (N_ENTRY, 0xa4, "ENTRY") 143*38fd1498Szrj 144*38fd1498Szrj/* Beginning of lexical block. 145*38fd1498Szrj The desc is the nesting level in lexical blocks. 146*38fd1498Szrj The value is the address of the start of the text for the block. 147*38fd1498Szrj The variables declared inside the block *precede* the N_LBRAC symbol. */ 148*38fd1498Szrj__define_stab (N_LBRAC, 0xc0, "LBRAC") 149*38fd1498Szrj 150*38fd1498Szrj/* Place holder for deleted include file. Replaces a N_BINCL and everything 151*38fd1498Szrj up to the corresponding N_EINCL. The Sun linker generates these when 152*38fd1498Szrj it finds multiple identical copies of the symbols from an include file. 153*38fd1498Szrj This appears only in output from the Sun linker. */ 154*38fd1498Szrj__define_stab (N_EXCL, 0xc2, "EXCL") 155*38fd1498Szrj 156*38fd1498Szrj/* Modula-2 scope information. Can someone say what info it contains? */ 157*38fd1498Szrj__define_stab (N_SCOPE, 0xc4, "SCOPE") 158*38fd1498Szrj 159*38fd1498Szrj/* End of a lexical block. Desc matches the N_LBRAC's desc. 160*38fd1498Szrj The value is the address of the end of the text for the block. */ 161*38fd1498Szrj__define_stab (N_RBRAC, 0xe0, "RBRAC") 162*38fd1498Szrj 163*38fd1498Szrj/* Begin named common block. Only the name is significant. */ 164*38fd1498Szrj__define_stab (N_BCOMM, 0xe2, "BCOMM") 165*38fd1498Szrj 166*38fd1498Szrj/* End named common block. Only the name is significant 167*38fd1498Szrj (and it should match the N_BCOMM). */ 168*38fd1498Szrj__define_stab (N_ECOMM, 0xe4, "ECOMM") 169*38fd1498Szrj 170*38fd1498Szrj/* End common (local name): value is address. 171*38fd1498Szrj I'm not sure how this is used. */ 172*38fd1498Szrj__define_stab (N_ECOML, 0xe8, "ECOML") 173*38fd1498Szrj 174*38fd1498Szrj/* These STAB's are used on Gould systems for Non-Base register symbols 175*38fd1498Szrj or something like that. FIXME. I have assigned the values at random 176*38fd1498Szrj since I don't have a Gould here. Fixups from Gould folk welcome... */ 177*38fd1498Szrj__define_stab (N_NBTEXT, 0xF0, "NBTEXT") 178*38fd1498Szrj__define_stab (N_NBDATA, 0xF2, "NBDATA") 179*38fd1498Szrj__define_stab (N_NBBSS, 0xF4, "NBBSS") 180*38fd1498Szrj__define_stab (N_NBSTS, 0xF6, "NBSTS") 181*38fd1498Szrj__define_stab (N_NBLCS, 0xF8, "NBLCS") 182*38fd1498Szrj 183*38fd1498Szrj/* Second symbol entry containing a length-value for the preceding entry. 184*38fd1498Szrj The value is the length. */ 185*38fd1498Szrj__define_stab (N_LENG, 0xfe, "LENG") 186*38fd1498Szrj 187*38fd1498Szrj/* The above information, in matrix format. 188*38fd1498Szrj 189*38fd1498Szrj STAB MATRIX 190*38fd1498Szrj _________________________________________________ 191*38fd1498Szrj | 00 - 1F are not dbx stab symbols | 192*38fd1498Szrj | In most cases, the low bit is the EXTernal bit| 193*38fd1498Szrj 194*38fd1498Szrj | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | 195*38fd1498Szrj | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | 196*38fd1498Szrj 197*38fd1498Szrj | 08 BSS | 0A INDR | 0C FN_SEQ | 0E | 198*38fd1498Szrj | 09 |EXT | 0B | 0D | 0F | 199*38fd1498Szrj 200*38fd1498Szrj | 10 | 12 COMM | 14 SETA | 16 SETT | 201*38fd1498Szrj | 11 | 13 | 15 | 17 | 202*38fd1498Szrj 203*38fd1498Szrj | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| 204*38fd1498Szrj | 19 | 1B | 1D | 1F FN | 205*38fd1498Szrj 206*38fd1498Szrj |_______________________________________________| 207*38fd1498Szrj | Debug entries with bit 01 set are unused. | 208*38fd1498Szrj | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | 209*38fd1498Szrj | 28 LCSYM | 2A MAIN | 2C | 2E BNSYM | 210*38fd1498Szrj | 30 PC | 32 NSYMS | 34 NOMAP | 36 | 211*38fd1498Szrj | 38 OBJ | 3A | 3C OPT | 3E | 212*38fd1498Szrj | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | 213*38fd1498Szrj | 48 BSLINE*| 4A DEFD | 4C | 4E ENSYM | 214*38fd1498Szrj | 50 EHDECL*| 52 | 54 CATCH | 56 | 215*38fd1498Szrj | 58 | 5A | 5C | 5E | 216*38fd1498Szrj | 60 SSYM | 62 | 64 SO | 66 | 217*38fd1498Szrj | 68 | 6A | 6C | 6E | 218*38fd1498Szrj | 70 | 72 | 74 | 76 | 219*38fd1498Szrj | 78 | 7A | 7C | 7E | 220*38fd1498Szrj | 80 LSYM | 82 BINCL | 84 SOL | 86 | 221*38fd1498Szrj | 88 | 8A | 8C | 8E | 222*38fd1498Szrj | 90 | 92 | 94 | 96 | 223*38fd1498Szrj | 98 | 9A | 9C | 9E | 224*38fd1498Szrj | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | 225*38fd1498Szrj | A8 | AA | AC | AE | 226*38fd1498Szrj | B0 | B2 | B4 | B6 | 227*38fd1498Szrj | B8 | BA | BC | BE | 228*38fd1498Szrj | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | 229*38fd1498Szrj | C8 | CA | CC | CE | 230*38fd1498Szrj | D0 | D2 | D4 | D6 | 231*38fd1498Szrj | D8 | DA | DC | DE | 232*38fd1498Szrj | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | 233*38fd1498Szrj | E8 ECOML | EA | EC | EE | 234*38fd1498Szrj | F0 | F2 | F4 | F6 | 235*38fd1498Szrj | F8 | FA | FC | FE LENG | 236*38fd1498Szrj +-----------------------------------------------+ 237*38fd1498Szrj * 50 EHDECL is also MOD2. 238*38fd1498Szrj * 48 BSLINE is also BROWS. 239*38fd1498Szrj */ 240