1267194Sray/* Table of DBX symbol codes for the GNU system. 2267194Sray Copyright 1988, 1991, 1992, 1993, 1994, 1996, 1998, 2004 3267194Sray Free Software Foundation, Inc. 4267194Sray 5267194Sray This program is free software; you can redistribute it and/or 6267194Sray modify it under the terms of the GNU General Public License as 7267194Sray published by the Free Software Foundation; either version 2 of the 8267194Sray License, or (at your option) any later version. 9267194Sray 10267194Sray This program is distributed in the hope that it will be useful, 11267194Sray but WITHOUT ANY WARRANTY; without even the implied warranty of 12267194Sray MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13267194Sray GNU General Public License for more details. 14267194Sray 15267194Sray You should have received a copy of the GNU General Public License 16267194Sray along with this program; if not, write to the Free Software 17267194Sray Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ 18293047Semaste 19267194Sray/* New stab from Solaris 2. This uses an n_type of 0, which in a.out files 20267194Sray overlaps the N_UNDF used for ordinary symbols. In ELF files, the 21267194Sray debug information is in a different file section, so there is no conflict. 22270114Sse This symbol's n_value gives the size of the string section associated 23270114Sse with this file. The symbol's n_strx (relative to the just-updated 24270114Sse string section start address) gives the name of the source file, 25270114Sse e.g. "foo.c", without any path information. The symbol's n_desc gives 26270114Sse the count of upcoming symbols associated with this file (not including 27270114Sse this one). */ 28270114Sse/* __define_stab (N_UNDF, 0x00, "UNDF") */ 29270114Sse 30270114Sse/* Global variable. Only the name is significant. 31270114Sse To find the address, look in the corresponding external symbol. */ 32270114Sse__define_stab (N_GSYM, 0x20, "GSYM") 33270114Sse 34267194Sray/* Function name for BSD Fortran. Only the name is significant. 35267194Sray To find the address, look in the corresponding external symbol. */ 36270114Sse__define_stab (N_FNAME, 0x22, "FNAME") 37270114Sse 38270114Sse/* Function name or text-segment variable for C. Value is its address. 39270114Sse Desc is supposedly starting line number, but GCC doesn't set it 40270114Sse and DBX seems not to miss it. */ 41270114Sse__define_stab (N_FUN, 0x24, "FUN") 42270114Sse 43270114Sse/* Data-segment variable with internal linkage. Value is its address. 44270114Sse "Static Sym". */ 45270114Sse__define_stab (N_STSYM, 0x26, "STSYM") 46270114Sse 47270114Sse/* BSS-segment variable with internal linkage. Value is its address. */ 48267194Sray__define_stab (N_LCSYM, 0x28, "LCSYM") 49267194Sray 50270114Sse/* Name of main routine. Only the name is significant. */ 51270114Sse__define_stab (N_MAIN, 0x2a, "MAIN") 52270114Sse 53270114Sse/* Solaris2: Read-only data symbols. */ 54270114Sse__define_stab (N_ROSYM, 0x2c, "ROSYM") 55270114Sse 56270114Sse/* Global symbol in Pascal. 57270114Sse Supposedly the value is its line number; I'm skeptical. */ 58270114Sse__define_stab (N_PC, 0x30, "PC") 59267194Sray 60267194Sray/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ 61267194Sray__define_stab (N_NSYMS, 0x32, "NSYMS") 62267194Sray 63267194Sray/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ 64267194Sray__define_stab (N_NOMAP, 0x34, "NOMAP") 65267194Sray 66267194Sray/* New stab from Solaris 2. Like N_SO, but for the object file. Two in 67267194Sray a row provide the build directory and the relative path of the .o from it. 68267194Sray Solaris2 uses this to avoid putting the stabs info into the linked 69267194Sray executable; this stab goes into the ".stab.index" section, and the debugger 70267194Sray reads the real stabs directly from the .o files instead. */ 71267194Sray__define_stab (N_OBJ, 0x38, "OBJ") 72267194Sray 73267194Sray/* New stab from Solaris 2. Options for the debugger, related to the 74267194Sray source language for this module. E.g. whether to use ANSI 75267194Sray integral promotions or traditional integral promotions. */ 76267194Sray__define_stab (N_OPT, 0x3c, "OPT") 77267194Sray 78267194Sray/* Register variable. Value is number of register. */ 79267194Sray__define_stab (N_RSYM, 0x40, "RSYM") 80267194Sray 81267194Sray/* Modula-2 compilation unit. Can someone say what info it contains? */ 82267194Sray__define_stab (N_M2C, 0x42, "M2C") 83267194Sray 84267194Sray/* Line number in text segment. Desc is the line number; 85267194Sray value is corresponding address. On Solaris2, the line number is 86267194Sray relative to the start of the current function. */ 87267194Sray__define_stab (N_SLINE, 0x44, "SLINE") 88267194Sray 89267194Sray/* Similar, for data segment. */ 90267194Sray__define_stab (N_DSLINE, 0x46, "DSLINE") 91267194Sray 92267194Sray/* Similar, for bss segment. */ 93267194Sray__define_stab (N_BSLINE, 0x48, "BSLINE") 94267194Sray 95267194Sray/* Sun's source-code browser stabs. ?? Don't know what the fields are. 96267194Sray Supposedly the field is "path to associated .cb file". THIS VALUE 97267194Sray OVERLAPS WITH N_BSLINE! */ 98267194Sray__define_stab_duplicate (N_BROWS, 0x48, "BROWS") 99267194Sray 100267194Sray/* GNU Modula-2 definition module dependency. Value is the modification time 101267194Sray of the definition file. Other is non-zero if it is imported with the 102267194Sray GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there 103267194Sray are enough empty fields? */ 104267194Sray__define_stab(N_DEFD, 0x4a, "DEFD") 105267194Sray 106267194Sray/* New in Solaris2. Function start/body/end line numbers. */ 107267194Sray__define_stab(N_FLINE, 0x4C, "FLINE") 108267194Sray 109267194Sray/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 110267194Sray and one is for C++. Still,... */ 111267194Sray/* GNU C++ exception variable. Name is variable name. */ 112267194Sray__define_stab (N_EHDECL, 0x50, "EHDECL") 113267194Sray/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ 114267194Sray__define_stab_duplicate (N_MOD2, 0x50, "MOD2") 115267194Sray 116267194Sray/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if 117267194Sray this entry is immediately followed by a CAUGHT stab saying what exception 118267194Sray was caught. Multiple CAUGHT stabs means that multiple exceptions 119267194Sray can be caught here. If Desc is 0, it means all exceptions are caught 120267194Sray here. */ 121267194Sray__define_stab (N_CATCH, 0x54, "CATCH") 122267194Sray 123267194Sray/* Structure or union element. Value is offset in the structure. */ 124267194Sray__define_stab (N_SSYM, 0x60, "SSYM") 125267194Sray 126267194Sray/* Solaris2: Last stab emitted for module. */ 127267194Sray__define_stab (N_ENDM, 0x62, "ENDM") 128267194Sray 129267194Sray/* Name of main source file. 130267194Sray Value is starting text address of the compilation. 131267194Sray If multiple N_SO's appear, the first to contain a trailing / is the 132267194Sray compilation directory. The first to not contain a trailing / is the 133267194Sray source file name, relative to the compilation directory. Others (perhaps 134267194Sray resulting from cfront) are ignored. 135267194Sray On Solaris2, value is undefined, but desc is a source-language code. */ 136267194Sray 137267194Sray__define_stab (N_SO, 0x64, "SO") 138267194Sray 139267194Sray/* SunPro F77: Name of alias. */ 140267194Sray__define_stab (N_ALIAS, 0x6c, "ALIAS") 141267194Sray 142267194Sray/* Automatic variable in the stack. Value is offset from frame pointer. 143267194Sray Also used for type descriptions. */ 144267194Sray__define_stab (N_LSYM, 0x80, "LSYM") 145267194Sray 146267194Sray/* Beginning of an include file. Only Sun uses this. 147293047Semaste In an object file, only the name is significant. 148267194Sray The Sun linker puts data into some of the other fields. */ 149267194Sray__define_stab (N_BINCL, 0x82, "BINCL") 150267194Sray 151270114Sse/* Name of sub-source file (#include file). 152270114Sse Value is starting text address of the compilation. */ 153270114Sse__define_stab (N_SOL, 0x84, "SOL") 154270114Sse 155270114Sse/* Parameter variable. Value is offset from argument pointer. 156270114Sse (On most machines the argument pointer is the same as the frame pointer. */ 157270114Sse__define_stab (N_PSYM, 0xa0, "PSYM") 158270114Sse 159270114Sse/* End of an include file. No name. 160270114Sse This and N_BINCL act as brackets around the file's output. 161270114Sse In an object file, there is no significant data in this entry. 162270114Sse The Sun linker puts data into some of the fields. */ 163267194Sray__define_stab (N_EINCL, 0xa2, "EINCL") 164267194Sray 165270114Sse/* Alternate entry point. Value is its address. */ 166270114Sse__define_stab (N_ENTRY, 0xa4, "ENTRY") 167270114Sse 168270114Sse/* Beginning of lexical block. 169270114Sse The desc is the nesting level in lexical blocks. 170270114Sse The value is the address of the start of the text for the block. 171270114Sse The variables declared inside the block *precede* the N_LBRAC symbol. 172270114Sse On Solaris2, the value is relative to the start of the current function. */ 173270114Sse__define_stab (N_LBRAC, 0xc0, "LBRAC") 174270114Sse 175270114Sse/* Place holder for deleted include file. Replaces a N_BINCL and everything 176270114Sse up to the corresponding N_EINCL. The Sun linker generates these when 177267194Sray it finds multiple identical copies of the symbols from an include file. 178267194Sray This appears only in output from the Sun linker. */ 179270114Sse__define_stab (N_EXCL, 0xc2, "EXCL") 180270114Sse 181270114Sse/* Modula-2 scope information. Can someone say what info it contains? */ 182270114Sse__define_stab (N_SCOPE, 0xc4, "SCOPE") 183270114Sse 184270114Sse/* Solaris2: Patch Run Time Checker. */ 185270114Sse__define_stab (N_PATCH, 0xd0, "PATCH") 186270114Sse 187270114Sse/* End of a lexical block. Desc matches the N_LBRAC's desc. 188267194Sray The value is the address of the end of the text for the block. 189267194Sray On Solaris2, the value is relative to the start of the current function. */ 190267194Sray__define_stab (N_RBRAC, 0xe0, "RBRAC") 191267194Sray 192267194Sray/* Begin named common block. Only the name is significant. */ 193267194Sray__define_stab (N_BCOMM, 0xe2, "BCOMM") 194267194Sray 195267194Sray/* End named common block. Only the name is significant 196267194Sray (and it should match the N_BCOMM). */ 197267194Sray__define_stab (N_ECOMM, 0xe4, "ECOMM") 198267194Sray 199267194Sray/* Member of a common block; value is offset within the common block. 200267194Sray This should occur within a BCOMM/ECOMM pair. */ 201267194Sray__define_stab (N_ECOML, 0xe8, "ECOML") 202267194Sray 203267194Sray/* Solaris2: Pascal "with" statement: type,,0,0,offset */ 204267194Sray__define_stab (N_WITH, 0xea, "WITH") 205267194Sray 206267194Sray/* These STAB's are used on Gould systems for Non-Base register symbols 207267194Sray or something like that. FIXME. I have assigned the values at random 208267194Sray since I don't have a Gould here. Fixups from Gould folk welcome... */ 209267194Sray__define_stab (N_NBTEXT, 0xF0, "NBTEXT") 210267194Sray__define_stab (N_NBDATA, 0xF2, "NBDATA") 211267194Sray__define_stab (N_NBBSS, 0xF4, "NBBSS") 212267194Sray__define_stab (N_NBSTS, 0xF6, "NBSTS") 213267194Sray__define_stab (N_NBLCS, 0xF8, "NBLCS") 214267194Sray 215267194Sray/* Second symbol entry containing a length-value for the preceding entry. 216267194Sray The value is the length. */ 217267194Sray__define_stab (N_LENG, 0xfe, "LENG") 218267194Sray 219267194Sray/* The above information, in matrix format. 220267194Sray 221267194Sray STAB MATRIX 222267194Sray _________________________________________________ 223267194Sray | 00 - 1F are not dbx stab symbols | 224267194Sray | In most cases, the low bit is the EXTernal bit| 225267194Sray 226267194Sray | 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | 227267194Sray | 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | 228267194Sray 229267194Sray | 08 BSS | 0A INDR | 0C FN_SEQ | 0E WEAKA | 230267194Sray | 09 |EXT | 0B | 0D WEAKU | 0F WEAKT | 231267194Sray 232267194Sray | 10 WEAKD | 12 COMM | 14 SETA | 16 SETT | 233267194Sray | 11 WEAKB | 13 | 15 | 17 | 234267194Sray 235267194Sray | 18 SETD | 1A SETB | 1C SETV | 1E WARNING| 236267194Sray | 19 | 1B | 1D | 1F FN | 237267194Sray 238267194Sray |_______________________________________________| 239267194Sray | Debug entries with bit 01 set are unused. | 240267194Sray | 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | 241267194Sray | 28 LCSYM | 2A MAIN | 2C ROSYM | 2E | 242267194Sray | 30 PC | 32 NSYMS | 34 NOMAP | 36 | 243 | 38 OBJ | 3A | 3C OPT | 3E | 244 | 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | 245 | 48 BSLINE*| 4A DEFD | 4C FLINE | 4E | 246 | 50 EHDECL*| 52 | 54 CATCH | 56 | 247 | 58 | 5A | 5C | 5E | 248 | 60 SSYM | 62 ENDM | 64 SO | 66 | 249 | 68 | 6A | 6C ALIAS | 6E | 250 | 70 | 72 | 74 | 76 | 251 | 78 | 7A | 7C | 7E | 252 | 80 LSYM | 82 BINCL | 84 SOL | 86 | 253 | 88 | 8A | 8C | 8E | 254 | 90 | 92 | 94 | 96 | 255 | 98 | 9A | 9C | 9E | 256 | A0 PSYM | A2 EINCL | A4 ENTRY | A6 | 257 | A8 | AA | AC | AE | 258 | B0 | B2 | B4 | B6 | 259 | B8 | BA | BC | BE | 260 | C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | 261 | C8 | CA | CC | CE | 262 | D0 PATCH | D2 | D4 | D6 | 263 | D8 | DA | DC | DE | 264 | E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | 265 | E8 ECOML | EA WITH | EC | EE | 266 | F0 | F2 | F4 | F6 | 267 | F8 | FA | FC | FE LENG | 268 +-----------------------------------------------+ 269 * 50 EHDECL is also MOD2. 270 * 48 BSLINE is also BROWS. 271 */ 272