0,0 → 1,234 |
/* Table of DBX symbol codes for the GNU system. |
Copyright (C) 1988, 1997 Free Software Foundation, Inc. |
This file is part of the GNU C Library. |
|
The GNU C Library is free software; you can redistribute it and/or |
modify it under the terms of the GNU Library General Public License as |
published by the Free Software Foundation; either version 2 of the |
License, or (at your option) any later version. |
|
The GNU C Library is distributed in the hope that it will be useful, |
but WITHOUT ANY WARRANTY; without even the implied warranty of |
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
Library General Public License for more details. |
|
You should have received a copy of the GNU Library General Public |
License along with the GNU C Library; see the file COPYING.LIB. If not, |
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
Boston, MA 02111-1307, USA. */ |
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/* This contains contribution from Cygnus Support. */ |
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/* Global variable. Only the name is significant. |
To find the address, look in the corresponding external symbol. */ |
__define_stab (N_GSYM, 0x20, "GSYM") |
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/* Function name for BSD Fortran. Only the name is significant. |
To find the address, look in the corresponding external symbol. */ |
__define_stab (N_FNAME, 0x22, "FNAME") |
|
/* Function name or text-segment variable for C. Value is its address. |
Desc is supposedly starting line number, but GCC doesn't set it |
and DBX seems not to miss it. */ |
__define_stab (N_FUN, 0x24, "FUN") |
|
/* Data-segment variable with internal linkage. Value is its address. |
"Static Sym". */ |
__define_stab (N_STSYM, 0x26, "STSYM") |
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/* BSS-segment variable with internal linkage. Value is its address. */ |
__define_stab (N_LCSYM, 0x28, "LCSYM") |
|
/* Name of main routine. Only the name is significant. |
This is not used in C. */ |
__define_stab (N_MAIN, 0x2a, "MAIN") |
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/* Global symbol in Pascal. |
Supposedly the value is its line number; I'm skeptical. */ |
__define_stab (N_PC, 0x30, "PC") |
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/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */ |
__define_stab (N_NSYMS, 0x32, "NSYMS") |
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/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */ |
__define_stab (N_NOMAP, 0x34, "NOMAP") |
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/* New stab from Solaris. I don't know what it means, but it |
don't seem to contain useful information. */ |
__define_stab (N_OBJ, 0x38, "OBJ") |
|
/* New stab from Solaris. I don't know what it means, but it |
don't seem to contain useful information. Possibly related to the |
optimization flags used in this module. */ |
__define_stab (N_OPT, 0x3c, "OPT") |
|
/* Register variable. Value is number of register. */ |
__define_stab (N_RSYM, 0x40, "RSYM") |
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/* Modula-2 compilation unit. Can someone say what info it contains? */ |
__define_stab (N_M2C, 0x42, "M2C") |
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/* Line number in text segment. Desc is the line number; |
value is corresponding address. */ |
__define_stab (N_SLINE, 0x44, "SLINE") |
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/* Similar, for data segment. */ |
__define_stab (N_DSLINE, 0x46, "DSLINE") |
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/* Similar, for bss segment. */ |
__define_stab (N_BSLINE, 0x48, "BSLINE") |
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/* Sun's source-code browser stabs. ?? Don't know what the fields are. |
Supposedly the field is "path to associated .cb file". THIS VALUE |
OVERLAPS WITH N_BSLINE! */ |
__define_stab (N_BROWS, 0x48, "BROWS") |
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/* GNU Modula-2 definition module dependency. Value is the modification time |
of the definition file. Other is non-zero if it is imported with the |
GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there |
are enough empty fields? */ |
__define_stab(N_DEFD, 0x4a, "DEFD") |
|
/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2 |
and one is for C++. Still,... */ |
/* GNU C++ exception variable. Name is variable name. */ |
__define_stab (N_EHDECL, 0x50, "EHDECL") |
/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */ |
__define_stab (N_MOD2, 0x50, "MOD2") |
|
/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if |
this entry is immediately followed by a CAUGHT stab saying what exception |
was caught. Multiple CAUGHT stabs means that multiple exceptions |
can be caught here. If Desc is 0, it means all exceptions are caught |
here. */ |
__define_stab (N_CATCH, 0x54, "CATCH") |
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/* Structure or union element. Value is offset in the structure. */ |
__define_stab (N_SSYM, 0x60, "SSYM") |
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/* Name of main source file. |
Value is starting text address of the compilation. */ |
__define_stab (N_SO, 0x64, "SO") |
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/* Automatic variable in the stack. Value is offset from frame pointer. |
Also used for type descriptions. */ |
__define_stab (N_LSYM, 0x80, "LSYM") |
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/* Beginning of an include file. Only Sun uses this. |
In an object file, only the name is significant. |
The Sun linker puts data into some of the other fields. */ |
__define_stab (N_BINCL, 0x82, "BINCL") |
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/* Name of sub-source file (#include file). |
Value is starting text address of the compilation. */ |
__define_stab (N_SOL, 0x84, "SOL") |
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/* Parameter variable. Value is offset from argument pointer. |
(On most machines the argument pointer is the same as the frame pointer. */ |
__define_stab (N_PSYM, 0xa0, "PSYM") |
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/* End of an include file. No name. |
This and N_BINCL act as brackets around the file's output. |
In an object file, there is no significant data in this entry. |
The Sun linker puts data into some of the fields. */ |
__define_stab (N_EINCL, 0xa2, "EINCL") |
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/* Alternate entry point. Value is its address. */ |
__define_stab (N_ENTRY, 0xa4, "ENTRY") |
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/* Beginning of lexical block. |
The desc is the nesting level in lexical blocks. |
The value is the address of the start of the text for the block. |
The variables declared inside the block *precede* the N_LBRAC symbol. */ |
__define_stab (N_LBRAC, 0xc0, "LBRAC") |
|
/* Place holder for deleted include file. Replaces a N_BINCL and everything |
up to the corresponding N_EINCL. The Sun linker generates these when |
it finds multiple identical copies of the symbols from an include file. |
This appears only in output from the Sun linker. */ |
__define_stab (N_EXCL, 0xc2, "EXCL") |
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/* Modula-2 scope information. Can someone say what info it contains? */ |
__define_stab (N_SCOPE, 0xc4, "SCOPE") |
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/* End of a lexical block. Desc matches the N_LBRAC's desc. |
The value is the address of the end of the text for the block. */ |
__define_stab (N_RBRAC, 0xe0, "RBRAC") |
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/* Begin named common block. Only the name is significant. */ |
__define_stab (N_BCOMM, 0xe2, "BCOMM") |
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/* End named common block. Only the name is significant |
(and it should match the N_BCOMM). */ |
__define_stab (N_ECOMM, 0xe4, "ECOMM") |
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/* End common (local name): value is address. |
I'm not sure how this is used. */ |
__define_stab (N_ECOML, 0xe8, "ECOML") |
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/* These STAB's are used on Gould systems for Non-Base register symbols |
or something like that. FIXME. I have assigned the values at random |
since I don't have a Gould here. Fixups from Gould folk welcome... */ |
__define_stab (N_NBTEXT, 0xF0, "NBTEXT") |
__define_stab (N_NBDATA, 0xF2, "NBDATA") |
__define_stab (N_NBBSS, 0xF4, "NBBSS") |
__define_stab (N_NBSTS, 0xF6, "NBSTS") |
__define_stab (N_NBLCS, 0xF8, "NBLCS") |
|
/* Second symbol entry containing a length-value for the preceding entry. |
The value is the length. */ |
__define_stab (N_LENG, 0xfe, "LENG") |
|
/* The above information, in matrix format. |
|
STAB MATRIX |
_________________________________________________ |
| 00 - 1F are not dbx stab symbols | |
| In most cases, the low bit is the EXTernal bit| |
|
| 00 UNDEF | 02 ABS | 04 TEXT | 06 DATA | |
| 01 |EXT | 03 |EXT | 05 |EXT | 07 |EXT | |
|
| 08 BSS | 0A INDR | 0C FN_SEQ | 0E | |
| 09 |EXT | 0B | 0D | 0F | |
|
| 10 | 12 COMM | 14 SETA | 16 SETT | |
| 11 | 13 | 15 | 17 | |
|
| 18 SETD | 1A SETB | 1C SETV | 1E WARNING| |
| 19 | 1B | 1D | 1F FN | |
|
|_______________________________________________| |
| Debug entries with bit 01 set are unused. | |
| 20 GSYM | 22 FNAME | 24 FUN | 26 STSYM | |
| 28 LCSYM | 2A MAIN | 2C | 2E | |
| 30 PC | 32 NSYMS | 34 NOMAP | 36 | |
| 38 OBJ | 3A | 3C OPT | 3E | |
| 40 RSYM | 42 M2C | 44 SLINE | 46 DSLINE | |
| 48 BSLINE*| 4A DEFD | 4C | 4E | |
| 50 EHDECL*| 52 | 54 CATCH | 56 | |
| 58 | 5A | 5C | 5E | |
| 60 SSYM | 62 | 64 SO | 66 | |
| 68 | 6A | 6C | 6E | |
| 70 | 72 | 74 | 76 | |
| 78 | 7A | 7C | 7E | |
| 80 LSYM | 82 BINCL | 84 SOL | 86 | |
| 88 | 8A | 8C | 8E | |
| 90 | 92 | 94 | 96 | |
| 98 | 9A | 9C | 9E | |
| A0 PSYM | A2 EINCL | A4 ENTRY | A6 | |
| A8 | AA | AC | AE | |
| B0 | B2 | B4 | B6 | |
| B8 | BA | BC | BE | |
| C0 LBRAC | C2 EXCL | C4 SCOPE | C6 | |
| C8 | CA | CC | CE | |
| D0 | D2 | D4 | D6 | |
| D8 | DA | DC | DE | |
| E0 RBRAC | E2 BCOMM | E4 ECOMM | E6 | |
| E8 ECOML | EA | EC | EE | |
| F0 | F2 | F4 | F6 | |
| F8 | FA | FC | FE LENG | |
+-----------------------------------------------+ |
* 50 EHDECL is also MOD2. |
* 48 BSLINE is also BROWS. |
*/ |