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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [include/] [aout/] [stab.def] - Blame information for rev 438

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1 330 jeremybenn
/* Table of DBX symbol codes for the GNU system.
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   Copyright 1988, 1991, 1992, 1993, 1994, 1996, 1998, 2004, 2010
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   Free Software Foundation, Inc.
4
 
5
   This program is free software; you can redistribute it and/or
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   modify it under the terms of the GNU 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.
9
 
10
   This program 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
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   GNU General Public License for more details.
14
 
15
   You should have received a copy of the GNU General Public License
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   along with this program; if not, write to the Free Software
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   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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   MA 02110-1301, USA.  */
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/* New stab from Solaris 2.  This uses an n_type of 0, which in a.out files
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   overlaps the N_UNDF used for ordinary symbols.  In ELF files, the
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   debug information is in a different file section, so there is no conflict.
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   This symbol's n_value gives the size of the string section associated
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   with this file.  The symbol's n_strx (relative to the just-updated
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   string section start address) gives the name of the source file,
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   e.g. "foo.c", without any path information.  The symbol's n_desc gives
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   the count of upcoming symbols associated with this file (not including
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   this one).  */
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/* __define_stab (N_UNDF, 0x00, "UNDF")  */
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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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/* Name of main routine.  Only the name is significant.  */
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__define_stab (N_MAIN, 0x2a, "MAIN")
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/* Solaris2:  Read-only data symbols.  */
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__define_stab (N_ROSYM, 0x2c, "ROSYM")
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/* MacOS X:
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   The beginning of a relocatable function block - including stabs.  */
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__define_stab (N_BNSYM, 0x2e, "BNSYM")
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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 2.  Like N_SO, but for the object file.  Two in
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   a row provide the build directory and the relative path of the .o from it.
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   Solaris2 uses this to avoid putting the stabs info into the linked
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   executable; this stab goes into the ".stab.index" section, and the debugger
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   reads the real stabs directly from the .o files instead.  */
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__define_stab (N_OBJ, 0x38, "OBJ")
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/* New stab from Solaris 2.  Options for the debugger, related to the
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   source language for this module.  E.g. whether to use ANSI
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   integral promotions or traditional integral promotions.  */
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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.  On Solaris2, the line number is
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   relative to the start of the current function.  */
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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_duplicate (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 non-zero 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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/* New in Solaris2.  Function start/body/end line numbers.  */
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__define_stab(N_FLINE, 0x4C, "FLINE")
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/* MacOS X: This tells the end of a relocatable function + debugging info.  */
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__define_stab(N_ENSYM, 0x4E, "ENSYM")
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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_duplicate (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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/* Solaris2:  Last stab emitted for module.  */
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__define_stab (N_ENDM, 0x62, "ENDM")
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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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   If multiple N_SO's appear, the first to contain a trailing / is the
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   compilation directory.  The first to not contain a trailing / is the
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   source file name, relative to the compilation directory.  Others (perhaps
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   resulting from cfront) are ignored.
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   On Solaris2, value is undefined, but desc is a source-language code.  */
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145
__define_stab (N_SO, 0x64, "SO")
146
 
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/* Apple:  This is the stab that associated the .o file with the
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   N_SO stab, in the case where debug info is mostly stored in the .o file.  */
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__define_stab (N_OSO, 0x66, "OSO")
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/* SunPro F77:  Name of alias.  */
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__define_stab (N_ALIAS, 0x6c, "ALIAS")
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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.  */
161
__define_stab (N_BINCL, 0x82, "BINCL")
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/* Name of sub-source file (#include file).
164
   Value is starting text address of the compilation.  */
165
__define_stab (N_SOL, 0x84, "SOL")
166
 
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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.  */
169
__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.
174
   The Sun linker puts data into some of the fields.  */
175
__define_stab (N_EINCL, 0xa2, "EINCL")
176
 
177
/* Alternate entry point.  Value is its address.  */
178
__define_stab (N_ENTRY, 0xa4, "ENTRY")
179
 
180
/* Beginning of lexical block.
181
   The desc is the nesting level in lexical blocks.
182
   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.
184
   On Solaris2, the value is relative to the start of the current function.  */
185
__define_stab (N_LBRAC, 0xc0, "LBRAC")
186
 
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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.  */
191
__define_stab (N_EXCL, 0xc2, "EXCL")
192
 
193
/* Modula-2 scope information.  Can someone say what info it contains?  */
194
__define_stab (N_SCOPE, 0xc4, "SCOPE")
195
 
196
/* Solaris2: Patch Run Time Checker.  */
197
__define_stab (N_PATCH, 0xd0, "PATCH")
198
 
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/* End of a lexical block.  Desc matches the N_LBRAC's desc.
200
   The value is the address of the end of the text for the block.
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   On Solaris2, the value is relative to the start of the current function.  */
202
__define_stab (N_RBRAC, 0xe0, "RBRAC")
203
 
204
/* Begin named common block.  Only the name is significant.  */
205
__define_stab (N_BCOMM, 0xe2, "BCOMM")
206
 
207
/* End named common block.  Only the name is significant
208
   (and it should match the N_BCOMM).  */
209
__define_stab (N_ECOMM, 0xe4, "ECOMM")
210
 
211
/* Member of a common block; value is offset within the common block.
212
   This should occur within a BCOMM/ECOMM pair.  */
213
__define_stab (N_ECOML, 0xe8, "ECOML")
214
 
215
/* Solaris2: Pascal "with" statement: type,,0,0,offset */
216
__define_stab (N_WITH, 0xea, "WITH")
217
 
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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")
222
__define_stab (N_NBDATA, 0xF2, "NBDATA")
223
__define_stab (N_NBBSS,  0xF4, "NBBSS")
224
__define_stab (N_NBSTS,  0xF6, "NBSTS")
225
__define_stab (N_NBLCS,  0xF8, "NBLCS")
226
 
227
/* Second symbol entry containing a length-value for the preceding entry.
228
   The value is the length.  */
229
__define_stab (N_LENG, 0xfe, "LENG")
230
 
231
/* The above information, in matrix format.
232
 
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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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241
        | 08 BSS    | 0A INDR   | 0C FN_SEQ | 0E WEAKA  |
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        | 09  |EXT  | 0B        | 0D WEAKU  | 0F WEAKT  |
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        | 10 WEAKD  | 12 COMM   | 14 SETA   | 16 SETT   |
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        | 11 WEAKB  | 13        | 15        | 17        |
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247
        | 18 SETD   | 1A SETB   | 1C SETV   | 1E WARNING|
248
        | 19        | 1B        | 1D        | 1F FN     |
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250
        |_______________________________________________|
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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 ROSYM  | 2E        |
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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 FLINE  | 4E        |
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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 ENDM   | 64 SO     | 66        |
261
        | 68        | 6A        | 6C ALIAS  | 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        |
265
        | 88        | 8A        | 8C        | 8E        |
266
        | 90        | 92        | 94        | 96        |
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        | 98        | 9A        | 9C        | 9E        |
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        | A0 PSYM   | A2 EINCL  | A4 ENTRY  | A6        |
269
        | A8        | AA        | AC        | AE        |
270
        | B0        | B2        | B4        | B6        |
271
        | B8        | BA        | BC        | BE        |
272
        | C0 LBRAC  | C2 EXCL   | C4 SCOPE  | C6        |
273
        | C8        | CA        | CC        | CE        |
274
        | D0 PATCH  | D2        | D4        | D6        |
275
        | D8        | DA        | DC        | DE        |
276
        | E0 RBRAC  | E2 BCOMM  | E4 ECOMM  | E6        |
277
        | E8 ECOML  | EA WITH   | EC        | EE        |
278
        | F0        | F2        | F4        | F6        |
279
        | F8        | FA        | FC        | FE LENG   |
280
        +-----------------------------------------------+
281
 * 50 EHDECL is also MOD2.
282
 * 48 BSLINE is also BROWS.
283
 */

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