FM / bits

/usr/include/bits

Name	Size	Mode	Actions
platform/	-	0755	rm
types/	-	0755	rm
a.out.h	268	0644	edit dl rm
argp-ldbl.h	1010	0644	edit dl rm
atomic_wide_counter.h	1283	0644	edit dl rm
byteswap.h	2450	0644	edit dl rm
cmathcalls.h	4139	0644	edit dl rm
confname.h	23828	0644	edit dl rm
cpu-set.h	4516	0644	edit dl rm
dirent.h	1771	0644	edit dl rm
dirent_ext.h	1275	0644	edit dl rm
dlfcn.h	2521	0644	edit dl rm
dl_find_object.h	1114	0644	edit dl rm
elfclass.h	426	0644	edit dl rm
endian.h	1905	0644	edit dl rm
endianness.h	273	0644	edit dl rm
environments.h	3791	0644	edit dl rm
epoll.h	1071	0644	edit dl rm
err-ldbl.h	1148	0644	edit dl rm
errno.h	1426	0644	edit dl rm
error-ldbl.h	1012	0644	edit dl rm
error.h	2684	0644	edit dl rm
eventfd.h	1129	0644	edit dl rm
fcntl-linux.h	14050	0644	edit dl rm
fcntl.h	2246	0644	edit dl rm
fcntl2.h	5575	0644	edit dl rm
fenv.h	3370	0644	edit dl rm
floatn-common.h	10325	0644	edit dl rm
floatn.h	4457	0644	edit dl rm
flt-eval-method.h	1215	0644	edit dl rm
fp-fast.h	1216	0644	edit dl rm
fp-logb.h	1012	0644	edit dl rm
getopt_core.h	3667	0644	edit dl rm
getopt_ext.h	3038	0644	edit dl rm
getopt_posix.h	1810	0644	edit dl rm
hwcap.h	972	0644	edit dl rm
in.h	9596	0644	edit dl rm
indirect-return.h	1591	0644	edit dl rm
inet-fortified-decl.h	1842	0644	edit dl rm
inet-fortified.h	1793	0644	edit dl rm
initspin.h	25	0644	edit dl rm
inotify.h	1080	0644	edit dl rm
ioctl-types.h	2456	0644	edit dl rm
ioctls.h	4478	0644	edit dl rm
ipc-perm.h	1745	0644	edit dl rm
ipc.h	1523	0644	edit dl rm
ipctypes.h	1176	0644	edit dl rm
iscanonical.h	2479	0644	edit dl rm
libc-header-start.h	4286	0644	edit dl rm
libm-simd-decl-stubs.h	3004	0644	edit dl rm
link.h	4286	0644	edit dl rm
link_lavcurrent.h	1099	0644	edit dl rm
locale.h	1368	0644	edit dl rm
local_lim.h	3176	0644	edit dl rm
long-double.h	970	0644	edit dl rm
math-vector.h	2308	0644	edit dl rm
mathcalls-helper-functions.h	1863	0644	edit dl rm
mathcalls-narrow.h	1312	0644	edit dl rm
mathcalls.h	13385	0644	edit dl rm
mathdef.h	891	0644	edit dl rm
mman-linux.h	5086	0644	edit dl rm
mman-map-flags-generic.h	1997	0644	edit dl rm
mman-shared.h	2841	0644	edit dl rm
mman.h	1363	0644	edit dl rm
monetary-ldbl.h	1047	0644	edit dl rm
mqueue.h	1246	0644	edit dl rm
mqueue2.h	2151	0644	edit dl rm
msq.h	1793	0644	edit dl rm
netdb.h	1264	0644	edit dl rm
param.h	1433	0644	edit dl rm
poll.h	2076	0644	edit dl rm
poll2.h	2666	0644	edit dl rm
posix1_lim.h	5198	0644	edit dl rm
posix2_lim.h	2867	0644	edit dl rm
posix_opt.h	5913	0644	edit dl rm
printf-ldbl.h	992	0644	edit dl rm
procfs-extra.h	963	0644	edit dl rm
procfs-id.h	1148	0644	edit dl rm
procfs-prregset.h	1050	0644	edit dl rm
procfs.h	2025	0644	edit dl rm
pthreadtypes-arch.h	1838	0644	edit dl rm
pthreadtypes.h	3072	0644	edit dl rm
pthread_stack_min-dynamic.h	1209	0644	edit dl rm
pthread_stack_min.h	946	0644	edit dl rm
ptrace-shared.h	4091	0644	edit dl rm
resource.h	6308	0644	edit dl rm
rseq.h	1243	0644	edit dl rm
sched.h	5673	0644	edit dl rm
select.h	1505	0644	edit dl rm
select2.h	1438	0644	edit dl rm
sem.h	2259	0644	edit dl rm
semaphore.h	1215	0644	edit dl rm
setjmp.h	1287	0644	edit dl rm
setjmp2.h	1705	0644	edit dl rm
shm.h	2766	0644	edit dl rm
shmlba.h	1106	0644	edit dl rm
sigaction.h	2935	0644	edit dl rm
sigcontext.h	4266	0644	edit dl rm
sigevent-consts.h	1471	0644	edit dl rm
siginfo-arch.h	729	0644	edit dl rm
siginfo-consts-arch.h	204	0644	edit dl rm
siginfo-consts.h	7036	0644	edit dl rm
signalfd.h	1067	0644	edit dl rm
signal_ext.h	1285	0644	edit dl rm
signum-arch.h	2580	0644	edit dl rm
signum-generic.h	3313	0644	edit dl rm
sigstack.h	1168	0644	edit dl rm
sigstksz.h	1278	0644	edit dl rm
sigthread.h	1692	0644	edit dl rm
sockaddr.h	1514	0644	edit dl rm
socket-constants.h	2497	0644	edit dl rm
socket.h	13554	0644	edit dl rm
socket2.h	3057	0644	edit dl rm
socket_type.h	2216	0644	edit dl rm
ss_flags.h	1188	0644	edit dl rm
stab.def	9040	0644	edit dl rm
stat.h	2231	0644	edit dl rm
statfs.h	1917	0644	edit dl rm
statvfs.h	3423	0644	edit dl rm
statx-generic.h	2187	0644	edit dl rm
statx.h	1400	0644	edit dl rm
stdint-intn.h	1037	0644	edit dl rm
stdint-uintn.h	1049	0644	edit dl rm
stdio-ldbl.h	3481	0644	edit dl rm
stdio.h	5599	0644	edit dl rm
stdio2-decl.h	4235	0644	edit dl rm
stdio2.h	10101	0644	edit dl rm
stdio_lim.h	1213	0644	edit dl rm
stdlib-bsearch.h	1557	0644	edit dl rm
stdlib-float.h	1115	0644	edit dl rm
stdlib-ldbl.h	2020	0644	edit dl rm
stdlib.h	5789	0644	edit dl rm
strings_fortified.h	1240	0644	edit dl rm
string_fortified.h	4345	0644	edit dl rm
struct_mutex.h	1810	0644	edit dl rm
struct_rwlock.h	2027	0644	edit dl rm
struct_stat.h	6190	0644	edit dl rm
struct_stat_time64_helper.h	2601	0644	edit dl rm
syscall.h	46524	0644	edit dl rm
syslog-ldbl.h	1204	0644	edit dl rm
syslog-path.h	1061	0644	edit dl rm
syslog.h	1969	0644	edit dl rm
sysmacros.h	2953	0644	edit dl rm
termios-baud.h	1824	0644	edit dl rm
termios-c_cc.h	1279	0644	edit dl rm
termios-c_cflag.h	1230	0644	edit dl rm
termios-c_iflag.h	1936	0644	edit dl rm
termios-c_lflag.h	2594	0644	edit dl rm
termios-c_oflag.h	2822	0644	edit dl rm
termios-misc.h	969	0644	edit dl rm
termios-struct.h	1433	0644	edit dl rm
termios-tcflow.h	1062	0644	edit dl rm
termios.h	2168	0644	edit dl rm
thread-shared-types.h	3927	0644	edit dl rm
time.h	3296	0644	edit dl rm
time64.h	1340	0644	edit dl rm
timerfd.h	1103	0644	edit dl rm
timesize.h	1081	0644	edit dl rm
timex.h	6198	0644	edit dl rm
types.h	8806	0644	edit dl rm
typesizes.h	3737	0644	edit dl rm
uintn-identity.h	1542	0644	edit dl rm
uio-ext.h	2086	0644	edit dl rm
uio_lim.h	1385	0644	edit dl rm
unistd.h	11653	0644	edit dl rm
unistd_ext.h	2538	0644	edit dl rm
utmp.h	4067	0644	edit dl rm
utmpx.h	3578	0644	edit dl rm
utsname.h	1213	0644	edit dl rm
waitflags.h	1697	0644	edit dl rm
waitstatus.h	2287	0644	edit dl rm
wchar-ldbl.h	3083	0644	edit dl rm
wchar.h	1906	0644	edit dl rm
wchar2-decl.h	4576	0644	edit dl rm
wchar2.h	14885	0644	edit dl rm
wctype-wchar.h	6307	0644	edit dl rm
wordsize.h	442	0644	edit dl rm
xopen_lim.h	3858	0644	edit dl rm

Edit: /usr/include/bits/stab.def (9040B)

/* Table of DBX symbol codes for the GNU system.
   Copyright (C) 1988, 1997-2021 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

/* This contains contribution from Cygnus Support.  */

/* 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 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")

/* 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")

/* 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.
 */

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