[gcc.git] / gcc / stab.def

/* Table of DBX symbol codes for the GNU system.
   Copyright (C) 1988, 1997, 1998 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.  */

/* This contains contribution from Cygnus Support.  */
\f
/* Global variable.  Only the name is significant.
   To find the address, look in the corresponding external symbol.  */
__define_stab (N_GSYM, 0x20, "GSYM")

/* 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")

/* 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")

/* Global symbol in Pascal.
   Supposedly the value is its line number; I'm skeptical.  */
__define_stab (N_PC, 0x30, "PC")

/* Number of symbols:  0, files,,funcs,lines according to Ultrix V4.0.  */
__define_stab (N_NSYMS, 0x32, "NSYMS")

/* "No DST map for sym: name, ,0,type,ignored"  according to Ultrix V4.0.  */
__define_stab (N_NOMAP, 0x34, "NOMAP")

/* 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")

/* Modula-2 compilation unit.  Can someone say what info it contains?  */
__define_stab (N_M2C, 0x42, "M2C")

/* Line number in text segment.  Desc is the line number;
   value is corresponding address.  */
__define_stab (N_SLINE, 0x44, "SLINE")

/* Similar, for data segment.  */
__define_stab (N_DSLINE, 0x46, "DSLINE")

/* Similar, for bss segment.  */
__define_stab (N_BSLINE, 0x48, "BSLINE")

/* 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")

/* GNU Modula-2 definition module dependency.  Value is the modification time
   of the definition file.  Other is nonzero 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")

/* Structure or union element.  Value is offset in the structure.  */
__define_stab (N_SSYM, 0x60, "SSYM")

/* Name of main source file.
   Value is starting text address of the compilation.  */
__define_stab (N_SO, 0x64, "SO")

/* Automatic variable in the stack.  Value is offset from frame pointer.
   Also used for type descriptions.  */
__define_stab (N_LSYM, 0x80, "LSYM")

/* 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")

/* Name of sub-source file (#include file).
   Value is starting text address of the compilation.  */
__define_stab (N_SOL, 0x84, "SOL")

/* 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")

/* 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")

/* Alternate entry point.  Value is its address.  */
__define_stab (N_ENTRY, 0xa4, "ENTRY")

/* 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")

/* Modula-2 scope information.  Can someone say what info it contains?  */
__define_stab (N_SCOPE, 0xc4, "SCOPE")

/* 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")

/* Begin named common block.  Only the name is significant.  */
__define_stab (N_BCOMM, 0xe2, "BCOMM")

/* End named common block.  Only the name is significant
   (and it should match the N_BCOMM).  */
__define_stab (N_ECOMM, 0xe4, "ECOMM")

/* End common (local name): value is address.
   I'm not sure how this is used.  */
__define_stab (N_ECOML, 0xe8, "ECOML")

/* 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")
\f
/* 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.
 */
Commit	Line	Data
5cd88a29	1	/* Table of DBX symbol codes for the GNU system.
1b0c6de6	2	Copyright (C) 1988, 1997, 1998 Free Software Foundation, Inc.
e5e809f4	3	This file is part of the GNU C Library.
5cd88a29	4
e5e809f4 JL	5	The GNU C Library is free software; you can redistribute it and/or
	6	modify it under the terms of the GNU Library General Public License as
	7	published by the Free Software Foundation; either version 2 of the
	8	License, or (at your option) any later version.
5cd88a29	9
e5e809f4	10	The GNU C Library is distributed in the hope that it will be useful,
5cd88a29	11	but WITHOUT ANY WARRANTY; without even the implied warranty of
e5e809f4 JL	12	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
e5e809f4 JL	13	Library General Public License for more details.
5cd88a29	14
e5e809f4 JL	15	You should have received a copy of the GNU Library General Public
	16	License along with the GNU C Library; see the file COPYING.LIB. If not,
	17	write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	18	Boston, MA 02111-1307, USA. */
5cd88a29 UD	19
	20	/* This contains contribution from Cygnus Support. */
	21	\f
	22	/* Global variable. Only the name is significant.
	23	To find the address, look in the corresponding external symbol. */
	24	__define_stab (N_GSYM, 0x20, "GSYM")
	25
	26	/* Function name for BSD Fortran. Only the name is significant.
	27	To find the address, look in the corresponding external symbol. */
	28	__define_stab (N_FNAME, 0x22, "FNAME")
	29
	30	/* Function name or text-segment variable for C. Value is its address.
	31	Desc is supposedly starting line number, but GCC doesn't set it
	32	and DBX seems not to miss it. */
	33	__define_stab (N_FUN, 0x24, "FUN")
	34
	35	/* Data-segment variable with internal linkage. Value is its address.
	36	"Static Sym". */
	37	__define_stab (N_STSYM, 0x26, "STSYM")
	38
	39	/* BSS-segment variable with internal linkage. Value is its address. */
	40	__define_stab (N_LCSYM, 0x28, "LCSYM")
	41
	42	/* Name of main routine. Only the name is significant.
	43	This is not used in C. */
	44	__define_stab (N_MAIN, 0x2a, "MAIN")
	45
	46	/* Global symbol in Pascal.
	47	Supposedly the value is its line number; I'm skeptical. */
	48	__define_stab (N_PC, 0x30, "PC")
	49
991b6592	50	/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */
5cd88a29 UD	51	__define_stab (N_NSYMS, 0x32, "NSYMS")
5cd88a29 UD	52
991b6592	53	/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */
5cd88a29 UD	54	__define_stab (N_NOMAP, 0x34, "NOMAP")
	55
	56	/* New stab from Solaris. I don't know what it means, but it
	57	don't seem to contain useful information. */
	58	__define_stab (N_OBJ, 0x38, "OBJ")
	59
	60	/* New stab from Solaris. I don't know what it means, but it
	61	don't seem to contain useful information. Possibly related to the
	62	optimization flags used in this module. */
	63	__define_stab (N_OPT, 0x3c, "OPT")
	64
	65	/* Register variable. Value is number of register. */
	66	__define_stab (N_RSYM, 0x40, "RSYM")
	67
	68	/* Modula-2 compilation unit. Can someone say what info it contains? */
	69	__define_stab (N_M2C, 0x42, "M2C")
	70
	71	/* Line number in text segment. Desc is the line number;
	72	value is corresponding address. */
	73	__define_stab (N_SLINE, 0x44, "SLINE")
	74
	75	/* Similar, for data segment. */
	76	__define_stab (N_DSLINE, 0x46, "DSLINE")
	77
	78	/* Similar, for bss segment. */
	79	__define_stab (N_BSLINE, 0x48, "BSLINE")
	80
	81	/* Sun's source-code browser stabs. ?? Don't know what the fields are.
	82	Supposedly the field is "path to associated .cb file". THIS VALUE
	83	OVERLAPS WITH N_BSLINE! */
	84	__define_stab (N_BROWS, 0x48, "BROWS")
	85
	86	/* GNU Modula-2 definition module dependency. Value is the modification time
0e9e1e0a	87	of the definition file. Other is nonzero if it is imported with the
5cd88a29 UD	88	GNU M2 keyword %INITIALIZE. Perhaps N_M2C can be used if there
	89	are enough empty fields? */
	90	__define_stab(N_DEFD, 0x4a, "DEFD")
	91
	92	/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2
991b6592	93	and one is for C++. Still,... */
5cd88a29 UD	94	/* GNU C++ exception variable. Name is variable name. */
	95	__define_stab (N_EHDECL, 0x50, "EHDECL")
	96	/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */
	97	__define_stab (N_MOD2, 0x50, "MOD2")
	98
	99	/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if
	100	this entry is immediately followed by a CAUGHT stab saying what exception
	101	was caught. Multiple CAUGHT stabs means that multiple exceptions
	102	can be caught here. If Desc is 0, it means all exceptions are caught
	103	here. */
	104	__define_stab (N_CATCH, 0x54, "CATCH")
	105
	106	/* Structure or union element. Value is offset in the structure. */
	107	__define_stab (N_SSYM, 0x60, "SSYM")
	108
	109	/* Name of main source file.
	110	Value is starting text address of the compilation. */
	111	__define_stab (N_SO, 0x64, "SO")
	112
	113	/* Automatic variable in the stack. Value is offset from frame pointer.
	114	Also used for type descriptions. */
	115	__define_stab (N_LSYM, 0x80, "LSYM")
	116
	117	/* Beginning of an include file. Only Sun uses this.
	118	In an object file, only the name is significant.
	119	The Sun linker puts data into some of the other fields. */
	120	__define_stab (N_BINCL, 0x82, "BINCL")
	121
	122	/* Name of sub-source file (#include file).
	123	Value is starting text address of the compilation. */
	124	__define_stab (N_SOL, 0x84, "SOL")
	125
	126	/* Parameter variable. Value is offset from argument pointer.
	127	(On most machines the argument pointer is the same as the frame pointer. */
	128	__define_stab (N_PSYM, 0xa0, "PSYM")
	129
	130	/* End of an include file. No name.
	131	This and N_BINCL act as brackets around the file's output.
	132	In an object file, there is no significant data in this entry.
	133	The Sun linker puts data into some of the fields. */
	134	__define_stab (N_EINCL, 0xa2, "EINCL")
	135
	136	/* Alternate entry point. Value is its address. */
	137	__define_stab (N_ENTRY, 0xa4, "ENTRY")
	138
	139	/* Beginning of lexical block.
	140	The desc is the nesting level in lexical blocks.
	141	The value is the address of the start of the text for the block.
	142	The variables declared inside the block precede the N_LBRAC symbol. */
	143	__define_stab (N_LBRAC, 0xc0, "LBRAC")
	144
	145	/* Place holder for deleted include file. Replaces a N_BINCL and everything
	146	up to the corresponding N_EINCL. The Sun linker generates these when
	147	it finds multiple identical copies of the symbols from an include file.
	148	This appears only in output from the Sun linker. */
	149	__define_stab (N_EXCL, 0xc2, "EXCL")
	150
	151	/* Modula-2 scope information. Can someone say what info it contains? */
	152	__define_stab (N_SCOPE, 0xc4, "SCOPE")
	153
	154	/* End of a lexical block. Desc matches the N_LBRAC's desc.
	155	The value is the address of the end of the text for the block. */
	156	__define_stab (N_RBRAC, 0xe0, "RBRAC")
	157
158	/* Begin named common block. Only the name is significant. */
159	__define_stab (N_BCOMM, 0xe2, "BCOMM")
160
161	/* End named common block. Only the name is significant
162	(and it should match the N_BCOMM). */
163	__define_stab (N_ECOMM, 0xe4, "ECOMM")
164
165	/* End common (local name): value is address.
166	I'm not sure how this is used. */
167	__define_stab (N_ECOML, 0xe8, "ECOML")
168
169	/* These STAB's are used on Gould systems for Non-Base register symbols
170	or something like that. FIXME. I have assigned the values at random
991b6592	171	since I don't have a Gould here. Fixups from Gould folk welcome... */
5cd88a29 UD	172	__define_stab (N_NBTEXT, 0xF0, "NBTEXT")
	173	__define_stab (N_NBDATA, 0xF2, "NBDATA")
	174	__define_stab (N_NBBSS, 0xF4, "NBBSS")
	175	__define_stab (N_NBSTS, 0xF6, "NBSTS")
	176	__define_stab (N_NBLCS, 0xF8, "NBLCS")
	177
	178	/* Second symbol entry containing a length-value for the preceding entry.
	179	The value is the length. */
	180	__define_stab (N_LENG, 0xfe, "LENG")
	181	\f
	182	/* The above information, in matrix format.
	183
	184	STAB MATRIX
	185	_________________________________________________
	186	\| 00 - 1F are not dbx stab symbols \|
	187	\| In most cases, the low bit is the EXTernal bit\|
	188
	189	\| 00 UNDEF \| 02 ABS \| 04 TEXT \| 06 DATA \|
	190	\| 01 \|EXT \| 03 \|EXT \| 05 \|EXT \| 07 \|EXT \|
	191
	192	\| 08 BSS \| 0A INDR \| 0C FN_SEQ \| 0E \|
	193	\| 09 \|EXT \| 0B \| 0D \| 0F \|
	194
	195	\| 10 \| 12 COMM \| 14 SETA \| 16 SETT \|
	196	\| 11 \| 13 \| 15 \| 17 \|
	197
	198	\| 18 SETD \| 1A SETB \| 1C SETV \| 1E WARNING\|
	199	\| 19 \| 1B \| 1D \| 1F FN \|
	200
	201	\|_______________________________________________\|
	202	\| Debug entries with bit 01 set are unused. \|
	203	\| 20 GSYM \| 22 FNAME \| 24 FUN \| 26 STSYM \|
	204	\| 28 LCSYM \| 2A MAIN \| 2C \| 2E \|
	205	\| 30 PC \| 32 NSYMS \| 34 NOMAP \| 36 \|
	206	\| 38 OBJ \| 3A \| 3C OPT \| 3E \|
	207	\| 40 RSYM \| 42 M2C \| 44 SLINE \| 46 DSLINE \|
	208	\| 48 BSLINE*\| 4A DEFD \| 4C \| 4E \|
	209	\| 50 EHDECL*\| 52 \| 54 CATCH \| 56 \|
	210	\| 58 \| 5A \| 5C \| 5E \|
	211	\| 60 SSYM \| 62 \| 64 SO \| 66 \|
	212	\| 68 \| 6A \| 6C \| 6E \|
	213	\| 70 \| 72 \| 74 \| 76 \|
	214	\| 78 \| 7A \| 7C \| 7E \|
	215	\| 80 LSYM \| 82 BINCL \| 84 SOL \| 86 \|
	216	\| 88 \| 8A \| 8C \| 8E \|
	217	\| 90 \| 92 \| 94 \| 96 \|
	218	\| 98 \| 9A \| 9C \| 9E \|
	219	\| A0 PSYM \| A2 EINCL \| A4 ENTRY \| A6 \|
	220	\| A8 \| AA \| AC \| AE \|
	221	\| B0 \| B2 \| B4 \| B6 \|
	222	\| B8 \| BA \| BC \| BE \|
	223	\| C0 LBRAC \| C2 EXCL \| C4 SCOPE \| C6 \|
	224	\| C8 \| CA \| CC \| CE \|
	225	\| D0 \| D2 \| D4 \| D6 \|
	226	\| D8 \| DA \| DC \| DE \|
	227	\| E0 RBRAC \| E2 BCOMM \| E4 ECOMM \| E6 \|
	228	\| E8 ECOML \| EA \| EC \| EE \|
	229	\| F0 \| F2 \| F4 \| F6 \|
	230	\| F8 \| FA \| FC \| FE LENG \|
	231	+-----------------------------------------------+
	232	* 50 EHDECL is also MOD2.
	233	* 48 BSLINE is also BROWS.
	234	*/