[binutils.git] / include / stab.def

/* Table of DBX symbol codes for the GNU system.
   Copyright (C) 1988, 1991 Free Software Foundation, Inc.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program 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 General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
\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")

/* 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")

/* 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		|
	| Entries with bit 01 set are external symbols. |
	| 00 UNDEF  | 02 ABS	| 04 TEXT   | 06 DATA	|
	| 08 BSS    | 0A INDR*	| 0C 	    | 0E FN	|
	| 10 	    | 12 	| 14 SETA   | 16 SETT	|
	| 18 SETD   | 1A SETB	| 1C SETV   | 1E WARNING|
	|_______________________________________________|
	| 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	    | 3A	| 3C	    | 3E	|
	| 40 RSYM   | 42 M2C	| 44 SLINE  | 46 DSLINE |
	| 48 BSLINE*| 4A	| 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.
 * 0A INDR is also COMM (supposedly only used internally to unix ld?)
 */
Commit	Line	Data
61a153e5	1	/* Table of DBX symbol codes for the GNU system.
55fbee91	2	Copyright (C) 1988, 1991 Free Software Foundation, Inc.
61a153e5	3
55fbee91 JG	4	This program is free software; you can redistribute it and/or modify
	5	it under the terms of the GNU General Public License as published by
	6	the Free Software Foundation; either version 2 of the License, or
	7	(at your option) any later version.
61a153e5	8
55fbee91 JG	9	This program is distributed in the hope that it will be useful,
	10	but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	12	GNU General Public License for more details.
1c6c6598	13
55fbee91 JG	14	You should have received a copy of the GNU General Public License
	15	along with this program; if not, write to the Free Software
	16	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
61a153e5 RP	17	\f
	18	/* Global variable. Only the name is significant.
	19	To find the address, look in the corresponding external symbol. */
	20	__define_stab (N_GSYM, 0x20, "GSYM")
	21
	22	/* Function name for BSD Fortran. Only the name is significant.
	23	To find the address, look in the corresponding external symbol. */
	24	__define_stab (N_FNAME, 0x22, "FNAME")
	25
	26	/* Function name or text-segment variable for C. Value is its address.
	27	Desc is supposedly starting line number, but GCC doesn't set it
	28	and DBX seems not to miss it. */
	29	__define_stab (N_FUN, 0x24, "FUN")
	30
55fbee91 JG	31	/* Data-segment variable with internal linkage. Value is its address.
55fbee91 JG	32	"Static Sym". */
61a153e5 RP	33	__define_stab (N_STSYM, 0x26, "STSYM")
	34
	35	/* BSS-segment variable with internal linkage. Value is its address. */
	36	__define_stab (N_LCSYM, 0x28, "LCSYM")
	37
	38	/* Name of main routine. Only the name is significant.
	39	This is not used in C. */
	40	__define_stab (N_MAIN, 0x2a, "MAIN")
	41
55fbee91 JG	42	/* Global symbol in Pascal.
	43	Supposedly the value is its line number; I'm skeptical. */
	44	__define_stab (N_PC, 0x30, "PC")
	45
bad3df67 JG	46	/* Number of symbols: 0, files,,funcs,lines according to Ultrix V4.0. */
	47	__define_stab (N_NSYMS, 0x32, "NSYMS")
	48
	49	/* "No DST map for sym: name, ,0,type,ignored" according to Ultrix V4.0. */
	50	__define_stab (N_NOMAP, 0x34, "NOMAP")
	51
61a153e5 RP	52	/* Register variable. Value is number of register. */
	53	__define_stab (N_RSYM, 0x40, "RSYM")
	54
55fbee91 JG	55	/* Modula-2 compilation unit. Can someone say what info it contains? */
	56	__define_stab (N_M2C, 0x42, "M2C")
	57
	58	/* Line number in text segment. Desc is the line number;
	59	value is corresponding address. */
	60	__define_stab (N_SLINE, 0x44, "SLINE")
	61
	62	/* Similar, for data segment. */
	63	__define_stab (N_DSLINE, 0x46, "DSLINE")
	64
	65	/* Similar, for bss segment. */
	66	__define_stab (N_BSLINE, 0x48, "BSLINE")
	67
	68	/* Sun's source-code browser stabs. ?? Don't know what the fields are.
	69	Supposedly the field is "path to associated .cb file". THIS VALUE
	70	OVERLAPS WITH N_BSLINE! */
	71	__define_stab (N_BROWS, 0x48, "BROWS")
	72
	73	/* THE FOLLOWING TWO STAB VALUES CONFLICT. Happily, one is for Modula-2
	74	and one is for C++. Still,... */
	75	/* GNU C++ exception variable. Name is variable name. */
	76	__define_stab (N_EHDECL, 0x50, "EHDECL")
	77	/* Modula2 info "for imc": name,,0,0,0 according to Ultrix V4.0. */
	78	__define_stab (N_MOD2, 0x50, "MOD2")
	79
	80	/* GNU C++ `catch' clause. Value is its address. Desc is nonzero if
	81	this entry is immediately followed by a CAUGHT stab saying what exception
	82	was caught. Multiple CAUGHT stabs means that multiple exceptions
	83	can be caught here. If Desc is 0, it means all exceptions are caught
	84	here. */
	85	__define_stab (N_CATCH, 0x54, "CATCH")
	86
61a153e5 RP	87	/* Structure or union element. Value is offset in the structure. */
	88	__define_stab (N_SSYM, 0x60, "SSYM")
	89
55fbee91 JG	90	/* Name of main source file.
	91	Value is starting text address of the compilation. */
	92	__define_stab (N_SO, 0x64, "SO")
61a153e5 RP	93
	94	/* Automatic variable in the stack. Value is offset from frame pointer.
	95	Also used for type descriptions. */
	96	__define_stab (N_LSYM, 0x80, "LSYM")
	97
55fbee91 JG	98	/* Beginning of an include file. Only Sun uses this.
	99	In an object file, only the name is significant.
	100	The Sun linker puts data into some of the other fields. */
	101	__define_stab (N_BINCL, 0x82, "BINCL")
61a153e5	102
bad3df67	103	/* Name of sub-source file (#include file).
61a153e5 RP	104	Value is starting text address of the compilation. */
	105	__define_stab (N_SOL, 0x84, "SOL")
	106
55fbee91 JG	107	/* Parameter variable. Value is offset from argument pointer.
	108	(On most machines the argument pointer is the same as the frame pointer. */
	109	__define_stab (N_PSYM, 0xa0, "PSYM")
61a153e5	110
61a153e5	111	/* End of an include file. No name.
55fbee91	112	This and N_BINCL act as brackets around the file's output.
61a153e5 RP	113	In an object file, there is no significant data in this entry.
	114	The Sun linker puts data into some of the fields. */
	115	__define_stab (N_EINCL, 0xa2, "EINCL")
55fbee91 JG	116
	117	/* Alternate entry point. Value is its address. */
	118	__define_stab (N_ENTRY, 0xa4, "ENTRY")
61a153e5 RP	119
	120	/* Beginning of lexical block.
	121	The desc is the nesting level in lexical blocks.
	122	The value is the address of the start of the text for the block.
	123	The variables declared inside the block precede the N_LBRAC symbol. */
	124	__define_stab (N_LBRAC, 0xc0, "LBRAC")
55fbee91 JG	125
	126	/* Place holder for deleted include file. Replaces a N_BINCL and everything
	127	up to the corresponding N_EINCL. The Sun linker generates these when
	128	it finds multiple identical copies of the symbols from an include file.
	129	This appears only in output from the Sun linker. */
	130	__define_stab (N_EXCL, 0xc2, "EXCL")
	131
	132	/* Modula-2 scope information. Can someone say what info it contains? */
	133	__define_stab (N_SCOPE, 0xc4, "SCOPE")
	134
61a153e5 RP	135	/* End of a lexical block. Desc matches the N_LBRAC's desc.
	136	The value is the address of the end of the text for the block. */
	137	__define_stab (N_RBRAC, 0xe0, "RBRAC")
	138
	139	/* Begin named common block. Only the name is significant. */
	140	__define_stab (N_BCOMM, 0xe2, "BCOMM")
55fbee91 JG	141
55fbee91 JG	142	/* End named common block. Only the name is significant
61a153e5 RP	143	(and it should match the N_BCOMM). */
61a153e5 RP	144	__define_stab (N_ECOMM, 0xe4, "ECOMM")
55fbee91	145
61a153e5 RP	146	/* End common (local name): value is address.
	147	I'm not sure how this is used. */
	148	__define_stab (N_ECOML, 0xe8, "ECOML")
61a153e5 RP	149
	150	/* These STAB's are used on Gould systems for Non-Base register symbols
	151	or something like that. FIXME. I have assigned the values at random
	152	since I don't have a Gould here. Fixups from Gould folk welcome... */
	153	__define_stab (N_NBTEXT, 0xF0, "NBTEXT")
	154	__define_stab (N_NBDATA, 0xF2, "NBDATA")
	155	__define_stab (N_NBBSS, 0xF4, "NBBSS")
	156	__define_stab (N_NBSTS, 0xF6, "NBSTS")
	157	__define_stab (N_NBLCS, 0xF8, "NBLCS")
55fbee91 JG	158
	159	/* Second symbol entry containing a length-value for the preceding entry.
	160	The value is the length. */
	161	__define_stab (N_LENG, 0xfe, "LENG")
61a153e5 RP	162	\f
	163	/* The above information, in matrix format.
	164
	165	STAB MATRIX
	166	_________________________________________________
	167	\| 00 - 1F are not dbx stab symbols \|
797d1b89 JG	168	\| Entries with bit 01 set are external symbols. \|
797d1b89 JG	169	\| 00 UNDEF \| 02 ABS \| 04 TEXT \| 06 DATA \|
55fbee91	170	\| 08 BSS \| 0A INDR* \| 0C \| 0E FN \|
797d1b89	171	\| 10 \| 12 \| 14 SETA \| 16 SETT \|
55fbee91	172	\| 18 SETD \| 1A SETB \| 1C SETV \| 1E WARNING\|
61a153e5	173	\|_______________________________________________\|
797d1b89	174	\| Debug entries with bit 01 set are unused. \|
61a153e5 RP	175	\| 20 GSYM \| 22 FNAME \| 24 FUN \| 26 STSYM \|
61a153e5 RP	176	\| 28 LCSYM \| 2A MAIN \| 2C \| 2E \|
bad3df67	177	\| 30 PC \| 32 NSYMS \| 34 NOMAP \| 36 \|
61a153e5	178	\| 38 \| 3A \| 3C \| 3E \|
55fbee91 JG	179	\| 40 RSYM \| 42 M2C \| 44 SLINE \| 46 DSLINE \|
55fbee91 JG	180	\| 48 BSLINE*\| 4A \| 4C \| 4E \|
bad3df67	181	\| 50 EHDECL*\| 52 \| 54 CATCH \| 56 \|
61a153e5	182	\| 58 \| 5A \| 5C \| 5E \|
55fbee91 JG	183	\| 60 SSYM \| 62 \| 64 SO \| 66 \|
55fbee91 JG	184	\| 68 \| 6A \| 6C \| 6E \|
61a153e5 RP	185	\| 70 \| 72 \| 74 \| 76 \|
	186	\| 78 \| 7A \| 7C \| 7E \|
	187	\| 80 LSYM \| 82 BINCL \| 84 SOL \| 86 \|
	188	\| 88 \| 8A \| 8C \| 8E \|
	189	\| 90 \| 92 \| 94 \| 96 \|
	190	\| 98 \| 9A \| 9C \| 9E \|
	191	\| A0 PSYM \| A2 EINCL \| A4 ENTRY \| A6 \|
	192	\| A8 \| AA \| AC \| AE \|
	193	\| B0 \| B2 \| B4 \| B6 \|
	194	\| B8 \| BA \| BC \| BE \|
	195	\| C0 LBRAC \| C2 EXCL \| C4 SCOPE \| C6 \|
	196	\| C8 \| CA \| CC \| CE \|
	197	\| D0 \| D2 \| D4 \| D6 \|
	198	\| D8 \| DA \| DC \| DE \|
	199	\| E0 RBRAC \| E2 BCOMM \| E4 ECOMM \| E6 \|
	200	\| E8 ECOML \| EA \| EC \| EE \|
	201	\| F0 \| F2 \| F4 \| F6 \|
	202	\| F8 \| FA \| FC \| FE LENG \|
	203	+-----------------------------------------------+
bad3df67	204	* 50 EHDECL is also MOD2.
55fbee91	205	* 48 BSLINE is also BROWS.
797d1b89	206	* 0A INDR is also COMM (supposedly only used internally to unix ld?)
55fbee91	207	*/