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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [stab.def] - Blame information for rev 867

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/* Table of DBX symbol codes for the GNU system.
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   Copyright (C) 1988, 1997, 1998, 2004, 2007 Free Software Foundation, Inc.
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   This file is part of the GNU C Library.
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   The GNU C Library is free software; you can redistribute it and/or
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   modify it under the terms of the GNU Library General Public License as
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   published by the Free Software Foundation; either version 3 of the
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   License, or (at your option) any later version.
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   The GNU C Library is distributed in the hope that it will be useful,
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   but WITHOUT ANY WARRANTY; without even the implied warranty of
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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   Library General Public License for more details.
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   You should have received a copy of the GNU Library General Public
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   License along with the GNU C Library; see the file COPYING3.  If
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   not see .  */
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/* This contains contribution from Cygnus Support.  */
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/* Global variable.  Only the name is significant.
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   To find the address, look in the corresponding external symbol.  */
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__define_stab (N_GSYM, 0x20, "GSYM")
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/* Function name for BSD Fortran.  Only the name is significant.
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   To find the address, look in the corresponding external symbol.  */
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__define_stab (N_FNAME, 0x22, "FNAME")
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/* Function name or text-segment variable for C.  Value is its address.
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   Desc is supposedly starting line number, but GCC doesn't set it
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   and DBX seems not to miss it.  */
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__define_stab (N_FUN, 0x24, "FUN")
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/* Data-segment variable with internal linkage.  Value is its address.
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   "Static Sym".  */
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__define_stab (N_STSYM, 0x26, "STSYM")
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/* BSS-segment variable with internal linkage.  Value is its address.  */
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__define_stab (N_LCSYM, 0x28, "LCSYM")
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/* Begin function marker.  */
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__define_stab (N_BNSYM, 0x2e, "BNSYM")
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/* End function marker.  */
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__define_stab (N_ENSYM, 0x4e, "ENSYM")
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/* Name of main routine.  Only the name is significant.
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   This is not used in C.  */
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__define_stab (N_MAIN, 0x2a, "MAIN")
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/* Global symbol in Pascal.
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   Supposedly the value is its line number; I'm skeptical.  */
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__define_stab (N_PC, 0x30, "PC")
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/* Number of symbols:  0, files,,funcs,lines according to Ultrix V4.0.  */
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__define_stab (N_NSYMS, 0x32, "NSYMS")
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/* "No DST map for sym: name, ,0,type,ignored"  according to Ultrix V4.0.  */
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__define_stab (N_NOMAP, 0x34, "NOMAP")
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/* New stab from Solaris.  I don't know what it means, but it
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   don't seem to contain useful information.  */
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__define_stab (N_OBJ, 0x38, "OBJ")
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/* New stab from Solaris.  I don't know what it means, but it
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   don't seem to contain useful information.  Possibly related to the
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   optimization flags used in this module.  */
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__define_stab (N_OPT, 0x3c, "OPT")
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/* Register variable.  Value is number of register.  */
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__define_stab (N_RSYM, 0x40, "RSYM")
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/* Modula-2 compilation unit.  Can someone say what info it contains?  */
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__define_stab (N_M2C, 0x42, "M2C")
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/* Line number in text segment.  Desc is the line number;
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   value is corresponding address.  */
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__define_stab (N_SLINE, 0x44, "SLINE")
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/* Similar, for data segment.  */
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__define_stab (N_DSLINE, 0x46, "DSLINE")
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/* Similar, for bss segment.  */
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__define_stab (N_BSLINE, 0x48, "BSLINE")
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/* Sun's source-code browser stabs.  ?? Don't know what the fields are.
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   Supposedly the field is "path to associated .cb file".  THIS VALUE
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   OVERLAPS WITH N_BSLINE!  */
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__define_stab (N_BROWS, 0x48, "BROWS")
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/* GNU Modula-2 definition module dependency.  Value is the modification time
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   of the definition file.  Other is nonzero if it is imported with the
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   GNU M2 keyword %INITIALIZE.  Perhaps N_M2C can be used if there
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   are enough empty fields? */
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__define_stab(N_DEFD, 0x4a, "DEFD")
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/* THE FOLLOWING TWO STAB VALUES CONFLICT.  Happily, one is for Modula-2
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   and one is for C++.   Still,...  */
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/* GNU C++ exception variable.  Name is variable name.  */
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__define_stab (N_EHDECL, 0x50, "EHDECL")
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/* Modula2 info "for imc":  name,,0,0,0  according to Ultrix V4.0.  */
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__define_stab (N_MOD2, 0x50, "MOD2")
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/* GNU C++ `catch' clause.  Value is its address.  Desc is nonzero if
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   this entry is immediately followed by a CAUGHT stab saying what exception
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   was caught.  Multiple CAUGHT stabs means that multiple exceptions
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   can be caught here.  If Desc is 0, it means all exceptions are caught
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   here.  */
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__define_stab (N_CATCH, 0x54, "CATCH")
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/* Structure or union element.  Value is offset in the structure.  */
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__define_stab (N_SSYM, 0x60, "SSYM")
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/* Name of main source file.
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   Value is starting text address of the compilation.  */
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__define_stab (N_SO, 0x64, "SO")
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/* Automatic variable in the stack.  Value is offset from frame pointer.
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   Also used for type descriptions.  */
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__define_stab (N_LSYM, 0x80, "LSYM")
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/* Beginning of an include file.  Only Sun uses this.
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   In an object file, only the name is significant.
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   The Sun linker puts data into some of the other fields.  */
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__define_stab (N_BINCL, 0x82, "BINCL")
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/* Name of sub-source file (#include file).
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   Value is starting text address of the compilation.  */
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__define_stab (N_SOL, 0x84, "SOL")
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/* Parameter variable.  Value is offset from argument pointer.
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   (On most machines the argument pointer is the same as the frame pointer.  */
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__define_stab (N_PSYM, 0xa0, "PSYM")
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/* End of an include file.  No name.
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   This and N_BINCL act as brackets around the file's output.
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   In an object file, there is no significant data in this entry.
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   The Sun linker puts data into some of the fields.  */
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__define_stab (N_EINCL, 0xa2, "EINCL")
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/* Alternate entry point.  Value is its address.  */
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__define_stab (N_ENTRY, 0xa4, "ENTRY")
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/* Beginning of lexical block.
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   The desc is the nesting level in lexical blocks.
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   The value is the address of the start of the text for the block.
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   The variables declared inside the block *precede* the N_LBRAC symbol.  */
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__define_stab (N_LBRAC, 0xc0, "LBRAC")
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/* Place holder for deleted include file.  Replaces a N_BINCL and everything
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   up to the corresponding N_EINCL.  The Sun linker generates these when
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   it finds multiple identical copies of the symbols from an include file.
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   This appears only in output from the Sun linker.  */
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__define_stab (N_EXCL, 0xc2, "EXCL")
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/* Modula-2 scope information.  Can someone say what info it contains?  */
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__define_stab (N_SCOPE, 0xc4, "SCOPE")
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/* End of a lexical block.  Desc matches the N_LBRAC's desc.
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   The value is the address of the end of the text for the block.  */
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__define_stab (N_RBRAC, 0xe0, "RBRAC")
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/* Begin named common block.  Only the name is significant.  */
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__define_stab (N_BCOMM, 0xe2, "BCOMM")
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/* End named common block.  Only the name is significant
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   (and it should match the N_BCOMM).  */
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__define_stab (N_ECOMM, 0xe4, "ECOMM")
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/* End common (local name): value is address.
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   I'm not sure how this is used.  */
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__define_stab (N_ECOML, 0xe8, "ECOML")
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/* These STAB's are used on Gould systems for Non-Base register symbols
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   or something like that.  FIXME.  I have assigned the values at random
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   since I don't have a Gould here.  Fixups from Gould folk welcome...  */
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__define_stab (N_NBTEXT, 0xF0, "NBTEXT")
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__define_stab (N_NBDATA, 0xF2, "NBDATA")
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__define_stab (N_NBBSS,  0xF4, "NBBSS")
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__define_stab (N_NBSTS,  0xF6, "NBSTS")
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__define_stab (N_NBLCS,  0xF8, "NBLCS")
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/* Second symbol entry containing a length-value for the preceding entry.
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   The value is the length.  */
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__define_stab (N_LENG, 0xfe, "LENG")
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/* The above information, in matrix format.
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                        STAB MATRIX
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        _________________________________________________
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        | 00 - 1F are not dbx stab symbols              |
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        | In most cases, the low bit is the EXTernal bit|
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        | 00 UNDEF  | 02 ABS    | 04 TEXT   | 06 DATA   |
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        | 01  |EXT  | 03  |EXT  | 05  |EXT  | 07  |EXT  |
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        | 08 BSS    | 0A INDR   | 0C FN_SEQ | 0E        |
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        | 09  |EXT  | 0B        | 0D        | 0F        |
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        | 10        | 12 COMM   | 14 SETA   | 16 SETT   |
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        | 11        | 13        | 15        | 17        |
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        | 18 SETD   | 1A SETB   | 1C SETV   | 1E WARNING|
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        | 19        | 1B        | 1D        | 1F FN     |
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        |_______________________________________________|
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        | Debug entries with bit 01 set are unused.     |
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        | 20 GSYM   | 22 FNAME  | 24 FUN    | 26 STSYM  |
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        | 28 LCSYM  | 2A MAIN   | 2C        | 2E BNSYM  |
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        | 30 PC     | 32 NSYMS  | 34 NOMAP  | 36        |
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        | 38 OBJ    | 3A        | 3C OPT    | 3E        |
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        | 40 RSYM   | 42 M2C    | 44 SLINE  | 46 DSLINE |
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        | 48 BSLINE*| 4A DEFD   | 4C        | 4E ENSYM  |
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        | 50 EHDECL*| 52        | 54 CATCH  | 56        |
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        | 58        | 5A        | 5C        | 5E        |
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        | 60 SSYM   | 62        | 64 SO     | 66        |
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        | 68        | 6A        | 6C        | 6E        |
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        | 70        | 72        | 74        | 76        |
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        | 78        | 7A        | 7C        | 7E        |
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        | 80 LSYM   | 82 BINCL  | 84 SOL    | 86        |
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        | 88        | 8A        | 8C        | 8E        |
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        | 90        | 92        | 94        | 96        |
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        | 98        | 9A        | 9C        | 9E        |
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        | A0 PSYM   | A2 EINCL  | A4 ENTRY  | A6        |
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        | A8        | AA        | AC        | AE        |
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        | B0        | B2        | B4        | B6        |
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        | B8        | BA        | BC        | BE        |
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        | C0 LBRAC  | C2 EXCL   | C4 SCOPE  | C6        |
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        | C8        | CA        | CC        | CE        |
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        | D0        | D2        | D4        | D6        |
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        | D8        | DA        | DC        | DE        |
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        | E0 RBRAC  | E2 BCOMM  | E4 ECOMM  | E6        |
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        | E8 ECOML  | EA        | EC        | EE        |
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        | F0        | F2        | F4        | F6        |
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        | F8        | FA        | FC        | FE LENG   |
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        +-----------------------------------------------+
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 * 50 EHDECL is also MOD2.
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 * 48 BSLINE is also BROWS.
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 */

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