John Polstra d3980376e8 Add a new function dllockinit() for registering thread locking ... functions to be used by the dynamic linker. This can be called by threads packages at start-up time. I will add the call to libc_r soon. Also add a default locking method that is used up until dllockinit() is called. The default method works by blocking SIGVTALRM, SIGPROF, and SIGALRM in critical sections. It is based on the observation that most user-space threads packages implement thread preemption with one of these signals (usually SIGVTALRM). The dynamic linker has never been reentrant, but it became less reentrant in revision 1.34 of "src/libexec/rtld-elf/rtld.c". Starting with that revision, multiple threads each doing lazy binding could interfere with each other. The usual symptom was that a symbol was falsely reported as undefined at start-up time. It was rare but not unseen. This commit fixes it.		1999-12-27 04:44:04 +00:00
..
arpa	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
protocols	Zap $Revision$	1999-09-05 17:43:31 +00:00
rpc	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
rpcsvc	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
_ctype.h	Back up following macros by functions: ishexnumber, isideogram, isnumber,	1999-12-17 15:12:21 +00:00
a.out.h
ar.h	BSD 4.4 Lite Include Sources	1994-05-24 09:57:34 +00:00
assert.h
bitstring.h
ctype.h	Back up following macros by functions: ishexnumber, isideogram, isnumber,	1999-12-17 15:12:21 +00:00
db.h
dirent.h	Fixed missing declaration of getdents(2).	1999-12-23 15:52:13 +00:00
disktab.h
dlfcn.h	Add a new function dllockinit() for registering thread locking	1999-12-27 04:44:04 +00:00
elf-hints.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
elf.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
err.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
fnmatch.h	Add FNM_FILE_NAME - GNU alias to FNM_PATHNAME	1999-11-21 17:32:45 +00:00
fstab.h	Change to comment for fs_passno to reflect that it applies	1997-01-28 06:11:45 +00:00
fts.h	Back out all of yesterdays include file changes.	1997-05-07 20:01:10 +00:00
glob.h	Removed _POSIX_SOURCE ifdefs. This is not a POSIX.1 header.	1998-02-25 02:15:59 +00:00
grp.h	Back out all of yesterdays include file changes.	1997-05-07 20:01:10 +00:00
histedit.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
ieeefp.h	Allow fpsetmask(3) and friends to be used from a C++ program on the Alpha.	1999-06-22 17:08:25 +00:00
iso646.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
limits.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
link.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
locale.h	Basic support for LC_MESSAGES	1998-04-29 22:39:56 +00:00
Makefile	Revert previous commit.	1999-12-09 09:35:36 +00:00
malloc.h	This file is deprecated not "obsoleted".	1997-04-13 11:33:17 +00:00
math.h
memory.h
mpool.h	Back out all of yesterdays include file changes.	1997-05-07 20:01:10 +00:00
ndbm.h	Add missing declarations.	1999-06-21 17:07:20 +00:00
netdb.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
nl_types.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
nlist.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
objformat.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
paths.h	Move nologin from /etc to /var/run. This means one less file that has	1999-01-11 09:07:42 +00:00
pthread_np.h	Cleanups to the pthread header files.	1999-07-31 08:36:07 +00:00
pthread.h	Fix some minor POSIX/SUSv2 compliance nits.	1999-12-18 01:00:42 +00:00
pwd.h	Use the correct type for uid and gid in struct passwd. Document it.	1999-01-18 02:14:20 +00:00
ranlib.h
regex.h	Back out all of yesterdays include file changes.	1997-05-07 20:01:10 +00:00
regexp.h
resolv.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
rune.h
runetype.h
setjmp.h	Suggested by: bde	1998-01-20 09:09:24 +00:00
sgtty.h
signal.h	Remove the inline versions of sigaddset, sigdelset, sigemptyset,	1999-10-02 19:33:23 +00:00
stab.h
stddef.h
stdio.h	Fixed missing declaration of ctermid_r(3).	1999-12-23 16:33:12 +00:00
stdlib.h	Fixed missing declaration of rand_r(3).	1999-12-23 15:58:20 +00:00
strhash.h	$Header$ -> $FreeBSD$	1999-08-28 05:11:36 +00:00
string.h	Add prototypes for strl* functions	1999-08-16 06:53:13 +00:00
stringlist.h	Add stringlist functions from NetBSD. (required for the new ftp(1)	1997-06-25 08:04:52 +00:00
strings.h
struct.h
sysexits.h
tar.h
time.h	Make ctime_r, asctime_r, gmtime_r, and localtime_r available in libc.	1999-01-04 20:45:20 +00:00
timers.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
ttyent.h	MF22: prototype fix.	1998-07-16 00:10:14 +00:00
unistd.h	Fixed missing declaration of getlogin_r(3).	1999-12-23 16:06:12 +00:00
utime.h	Back out all of yesterdays include file changes.	1997-05-07 20:01:10 +00:00
utmp.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00
vis.h	$Id$ -> $FreeBSD$	1999-08-27 23:45:13 +00:00