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4a027d50c7
freebsd-dev/lib
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John Birrell 4a027d50c7 Change signal model to match POSIX (i.e. one set of signal handlers 
for the process, not a separate set for each thread). By default, the
process now only has signal handlers installed for SIGVTALRM, SIGINFO
and SIGCHLD. The thread kernel signal handler is installed for other
signals on demand. This means that SIG_IGN and SIG_DFL processing is now
left to the kernel, not the thread kernel.

Change the signal dispatch to no longer use a signal thread, and
call the signal handler using the stack of the thread that has the
signal pending.

Change the atomic lock method to use test-and-set asm code with
a yield if blocked. This introduces separate locks for each type
of object instead of blocking signals to prevent a context
switch. It was this blocking of signals that caused the performance
degradation the people have noted.

This is a *big* change!
1998-04-29 09:59:34 +00:00
..
compat Add libg++ 3.0 1997-04-03 06:08:28 +00:00
csu Temporary fix for problems that occur if CFLAGS=-g is added to 1998-04-01 03:24:19 +00:00
libalias o Support a compile-time -DNO_FW_PUNCH for portability 1998-04-19 21:42:07 +00:00
libc Stop renaming these in libc_r because wrappered versions don't make sense. 1998-04-29 09:14:35 +00:00
libc_r Change signal model to match POSIX (i.e. one set of signal handlers 1998-04-29 09:59:34 +00:00
libcalendar .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libcom_err Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
libcompat .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libcrypt When compiling under elf, use correct library naming conventions. Also 1997-09-05 12:12:35 +00:00
libcurses .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libdisk Add Compaq & SCO partition types. 1998-03-22 07:41:23 +00:00
libedit .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libf2c Add a -I switch to CFLAGS to use the f2c.h header file in the usr.bin/f2c 1997-04-24 17:10:56 +00:00
libF77 Upgrade to the 1997/02/26 version. 1997-04-13 01:16:58 +00:00
libftpio Correctly figure out that the remove cannot do passive mode. 1998-04-11 07:28:53 +00:00
libgnumalloc Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
libI77 Upgrade to the 1997/02/26 version. 1997-04-13 01:16:58 +00:00
libipx -I${DESTDIR}/sys -> -I${.CURDIR}/../../sys. 1997-08-26 14:13:02 +00:00
libkse Change signal model to match POSIX (i.e. one set of signal handlers 1998-04-29 09:59:34 +00:00
libkvm Fixed bugs in the conversion of kvm to to use procfs in rev.1.3. All 1998-01-16 16:45:05 +00:00
libm This commit was generated by cvs2svn to compensate for changes in r27180, 1997-07-03 03:28:27 +00:00
libmd Split the padding out into a separate function. 1998-03-27 10:23:00 +00:00
libmytinfo When printf'ing the result of pointer arithmetic, cast the result to 1998-01-13 03:07:10 +00:00
libncurses Add some easy to implement XSI macros including attr_get 1998-04-15 23:13:36 +00:00
libopie Move locks from /etc/opielocks to /var/run/opielocks to keep 1997-10-01 13:02:20 +00:00
libpam/modules .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq. 1998-03-23 07:48:45 +00:00
libpcap Also install pcap-int.h so things can call pcap_compile on arbitary 1997-10-10 11:55:42 +00:00
libpthread Change signal model to match POSIX (i.e. one set of signal handlers 1998-04-29 09:59:34 +00:00
libresolv Yet another attempt to remove the old libraries correctly. libfoo.* 1996-10-08 20:06:41 +00:00
librpcsvc Don't add non-generated sources to CLEANFILES. There was no problem 1998-02-25 01:30:05 +00:00
libscsi -I${DESTDIR}/sys -> -I${.CURDIR}/../../sys. 1997-08-26 14:13:02 +00:00
libskey .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libss Separated header creation from header installation in libss. Create 1998-03-12 10:08:50 +00:00
libtcl Regenerate (install tclAppInit.c in the installhdrs step). 1998-03-23 13:21:35 +00:00
libtelnet Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
libtermcap Fixed bitrot in synopsis. 1998-03-23 13:23:22 +00:00
libutil Oops, revert part of a diff that wasn't supposed to have been committed. 1998-04-28 07:02:33 +00:00
libvgl .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
libxpg4 Add mskanji.c 1997-09-25 23:24:35 +00:00
liby Revert $FreeBSD$ to $Id$ 1997-02-22 15:12:41 +00:00
libz Backup out the last commit, it was already there. 1998-04-17 08:31:07 +00:00
msun Back out last change 1998-04-23 04:44:08 +00:00
ncurses/ncurses Renamed the generated include file keys.tries to keys.tries.h so 1998-03-20 16:50:08 +00:00
Makefile Build both libscrypt and libdescrypt. There is no point in letting 1998-03-21 08:18:57 +00:00
Makefile.inc