Commit Graph

53 Commits

Author SHA1 Message Date
Ruslan Ermilov
a35d88931c For variables that are only checked with defined(), don't provide
any fake value.
2004-10-24 15:33:08 +00:00
David Xu
a002d437ea 1. Add macro DTV_OFFSET to calculate dtv offset in tcb.
2. Export symbols needed by debugger.
2004-08-16 03:27:29 +00:00
Marcel Moolenaar
a99e07ba17 Now that libpthread is the default threading library, remove the
compatibility link from libc_r to libpthread (previously a link
from libc_r to libkse).
2004-01-31 05:05:45 +00:00
Daniel Eischen
bd224d495e Change libkse back to libpthread and make it the default
thread library for i386, amd64, and ia64.  For alpha
and sparc64 the library is not changed and remains libkse,
and links are installed so that libpthread -> libc_r.

The gcc -pthread option will be changed in a separate
commit so that it links to -lpthread instead of -lc_r.

Approved by:	re@
2004-01-30 12:13:17 +00:00
Marcel Moolenaar
ed74e02776 Relink libc_r.a, libc_r.so and libc_r_p.so from libthr to libkse.
On ia64, where there's no libc_r at all, libkse is now the default
thread library by virtue of these links.

The reasons for this change are:
1. libkse is slated to become the default thread library anyway,
2. active development and maintenance is only present for libkse,
3. GNOME and KDE, both in the process of being supported on ia64,
   work better with KSE; even on ia64.
2003-09-27 23:27:19 +00:00
Alexander Kabaev
523be360f1 Rethink the way thr_libc.So is generated. Relying on GCC to extract
only needed symbols from libc_pic is not working on sparc64.

Requested by: jake
2003-09-02 19:37:11 +00:00
David Xu
090b336154 o Eliminate upcall for PTHREAD_SYSTEM_SCOPE thread, now it
is system bound thread and when it is blocked, no upcall is generated.

o Add ability to libkse to allow it run in pure 1:1 threading mode,
  defining SYSTEM_SCOPE_ONLY in Makefile can turn on this option.

o Eliminate code for installing dummy signal handler for sigwait call.

o Add hash table to find thread.

Reviewed by: deischen
2003-07-17 23:02:30 +00:00
Ruslan Ermilov
cdae046749 Take thr_support.c out of SRCS so that it does not end up in libraries.
Record the missing dependency of thr_libc.So on the libc_pic.a library.

OK'ed by:	kan
2003-07-02 20:51:30 +00:00
Ruslan Ermilov
dfebdcdf7c Unbreak "make checkdpadd". 2003-07-01 15:37:35 +00:00
Ruslan Ermilov
0b3cbc5c38 Axe AINC.
Submitted by:	bde
2003-07-01 15:07:01 +00:00
Marcel Moolenaar
842728619a Move the machine specific files from sys/Makefile.inc and put them
in a machine specific makefile. While here, sort the sub-directories
in Makefile and remove _atomic_lock.S from all makefiles.
2003-06-23 04:28:31 +00:00
Alexander Kabaev
84d55c7fad Attempt to eliminate PLT relocations from rwlock aquire/release
path, making them suitable for direct use by the dynamic loader.

Register libpthread-specific locking API with rtld on startup.

This still has some rough edges with signals which should be
addresses later.

Approved by:	re (scottl)
2003-05-30 00:21:52 +00:00
Daniel Eischen
fd47bf962d Remove the %gs restoring hack (already commented out).
Don't install man pages.

Temporarily (again) rename the library to libkse.  It will be put back
to libpthread after more wide-spread testing.
2003-04-25 01:31:56 +00:00
Daniel Eischen
c159269082 Remove the i386-specific hack (well, we only run on i386 anyways)
to always set %gs when resuming a thread.

Install this library as libpthread instead of libkse.
2003-04-23 21:48:29 +00:00
Daniel Eischen
02245e6120 Add an i386-specifc hack to always set %gs. There still seems
to be instances where the kernel doesn't  properly save and/or
restore it.

Use noupcall and nocompleted flags in the KSE mailbox.  These
require kernel changes to work which will be committed sometime
later.  Things still work without the changes.

Remove the general kse entry function and use two different
functions -- one for scope system threads and one for scope
process threads.  The scope system function is not yet enabled
and we use the same function for all threads at the moment.

Keep a copy of the KSE stack for the case that a KSE runs
a scope system thread and uses the same stack as the thread
(no upcalls are generated, so a separate stack isn't needed).
This isn't enabled yet.

Use a separate field for the KSE waiting flag.  It isn't
correct to use the mailbox flags field.

The following fixes were provided by David Xu:

  o Initialize condition variable locks with thread versions
    of the low-level locking functions instead of the kse versions.

  o Enable threading before creating the first thread instead
    of after.

  o Don't enter critical regions when trying to malloc/free
    or call functions that malloc/free.

  o Take the scheduling lock when inheriting thread attributes.

  o Check the attribute's stack pointer instead of the
    attributes stack size for null when allocating a
    thread's stack.

  o Add a kseg reinit function so we don't have to destroy and
    then recreate the same lock.

  o Check the return value of kse_create() and return an
    appropriate error if it fails.

  o Don't forget to destroy a thread's locks when freeing it.

  o Examine the correct flags word for checking to see if
    a thread is in a synchronization queue.

Things should now work on an SMP kernel.
2003-04-21 04:02:56 +00:00
Daniel Eischen
e4c2ac1637 Sorry folks; I accidentally committed a patch from what I was working
on a couple of days ago.  This should be the most recent changes.

Noticed by:	davidxu
2003-04-18 07:09:43 +00:00
Daniel Eischen
0174b69f92 Comment out the addition of -g to CFLAGS. This snuck in from
my local version.
2003-04-18 05:06:56 +00:00
Daniel Eischen
a0240e2cb0 Revamp libpthread so that it has a chance of working in an SMP
environment.  This includes support for multiple KSEs and KSEGs.

The ability to create more than 1 KSE via pthread_setconcurrency()
is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads.
Those should come shortly.

There are still some known issues which davidxu and I are working
on, but it'll make it easier for us by committing what we have.

This library now passes all of the ACE tests that libc_r passes
with the exception of one.  It also seems to work OK with KDE
including konqueror, kwrite, etc.  I haven't been able to get
mozilla to run due to lack of java plugin, so I'd be interested
to see how it works with that.

Reviewed by:	davidxu
2003-04-18 05:04:16 +00:00
Daniel Eischen
84001cde8f For now, build and install this as libkse instead of libpthread.
This will avoid any accidental use of an experimental library.

Suggested by:	rwatson
Approved by:	re (jhb)
2002-12-08 22:43:31 +00:00
Peter Wemm
224af215a6 Zap now-unused SHLIB_MINOR 2002-09-28 00:25:32 +00:00
Jonathan Mini
cfa1f4e659 Mechanically change all libc_r references to libpthread. 2002-09-16 19:29:34 +00:00
Jonathan Mini
cc118d869b Make the changes needed for libpthread to compile in its new home.
The new libpthread will provide POSIX threading support using KSE.
These files were previously repo-copied from src/lib/libc_r.

Reviewed by:	deischen
Approved by:	-arch
2002-09-16 08:45:36 +00:00
David E. O'Brien
cb81cd7952 Sync SCM ID comments with libc. 2002-04-15 20:22:28 +00:00
Daniel Eischen
e5106342c6 Add weak definitions for wrapped system calls. In general:
_foo - wrapped system call
	foo - weak definition to _foo

and for cancellation points:

	_foo - wrapped system call
	__foo - enter cancellation point, call _foo(), leave
	        cancellation point
	foo - weak definition to __foo

Change use of global _thread_run to call a function to get the
currently running thread.

Make all pthread_foo functions weak definitions to _pthread_foo,
where _pthread_foo is the implementation.  This allows an application
to provide its own pthread functions.

Provide slightly different versions of pthread_mutex_lock and
pthread_mutex_init so that we can tell the difference between
a libc mutex and an application mutex.  Threads holding mutexes
internal to libc should never be allowed to exit, call signal
handlers, or cancel.

Approved by:	-arch
2001-01-24 13:03:38 +00:00
David E. O'Brien
fe17fef5d2 Bump the shared lib version. There seems to have been an incompatible
change committed to RELENG_4 where a bump there is now necessary.
We've got to go before RELENG_4 does.
2000-11-14 02:46:23 +00:00
Daniel Eischen
b4145b0bfa Enable _PTHREADS_INVARIANTS until the recent libc_r changes are
shaken out.
2000-10-13 22:19:50 +00:00
Jonathan Lemon
532c92a865 Add wrapper for kevent() syscall
Noted as missing by: nicolas.leonard@animaths.com
2000-08-07 16:51:56 +00:00
Jason Evans
e21fa6847e Remove DEBUG_FLAGS=-g3, which never should have been committed. 2000-07-05 16:21:42 +00:00
Jason Evans
98a1f447bb Add a wrapper for the sendfile() system call.
PR:		bin/17366
2000-04-27 00:59:44 +00:00
Jason Evans
9233c4d942 Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),
just use _foo() <-- foo().  In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate.  In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by:	deischen
2000-01-27 23:07:25 +00:00
Jason Evans
386812d440 Fix some minor POSIX/SUSv2 compliance nits.
PR:		kern/11982
1999-12-18 01:00:42 +00:00
Alfred Perlstein
7285bccf1a add pthread_cancel, obtained from OpenBSD.
eischen (Daniel Eischen) added wrappers to protect against cancled
threads orphaning internal resources.

the cancelability code is still a bit fuzzy but works for test
programs of my own, OpenBSD's and some examples from ORA's books.

add readdir_r to both libc and libc_r

add some 'const' attributes to function parameters

Reviewed by: eischen, jasone
1999-11-28 05:38:13 +00:00
Marcel Moolenaar
616842b791 Add sigsuspend.o and sigpending.o to HIDDEN_SYSCALLS as well.
Pointed out by: jdp
1999-10-14 10:08:53 +00:00
Marcel Moolenaar
a8ce772846 Add sigprocmask to HIDDEN_SYSCALLS. This renames the syscall to
_thread_sys_sisprocmask in libc_r. This solves the undefined symbol...

Reported by: Kenneth Wayne Culver
1999-09-30 15:07:43 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Jason Evans
876cc3dae0 Always use growable thread stacks on the i386. The VM_STACK kernel option
must be made default for the alpha before growable thread stacks are
enabled for the alpha.
1999-07-06 00:25:38 +00:00
Jason Evans
439cce0e4b Disable growable stacks by default, as advertised. 1999-07-05 00:38:12 +00:00
Jason Evans
ecaa6e8c9e Use growable stacks for thread stacks that are the default stack size.
Cache discarded default thread stacks for use in subsequent thread creations.

Create a red zone at the end of each stack (including the initial thread
stack), with the hope of causing a segfault if a stack overflows.

To activate these modifications, add -D_PTHREAD_GSTACK to CFLAGS in
src/lib/libc_r/Makefile.  Since the modifications depend on the VM_STACK
kernel option, I'm not sure how to safely use growable stacks by default.

Testing, as well as algorithmic and stylistic comments are welcome.
1999-07-05 00:35:19 +00:00
John Birrell
38329e8a07 Remove -DNOPOLL from the compilation flags now that there is a poll wrapper
in libc_r.

Bump the library version number (the scheduler now uses a poll syscall
instead of select).
1999-06-20 08:32:37 +00:00
John Birrell
7897c2a418 Don't hide mknod, it doesn't need a wrapper and never has had one. 1998-12-10 20:27:52 +00:00
Peter Wemm
02a93d74e0 Don't compile in the use of poll() when building libc_r. This isn't
so much a "fix", rather a bandaid to buy time to fix it properly
within the thread engine.
1998-06-14 11:25:46 +00:00
John Birrell
0b99d9d8ac Add poll to the list of hidden syscalls so that it gets renamed. This
propagates a bug (that there is no poll wrapper in libc_r), but it
prevents GNU configure scripts from trying to use it in preference
to select. libc_r really needs to change it's wait interface to use
poll instead of select because poll is more a superset of select that
the other way around.

This should allow the Roxen web server to work out-of-the-box. It's
configuration intercae is kinda neat. The code isn't. Shiver. 8-)
1998-06-12 02:21:27 +00:00
John Birrell
627961e45f Add a commented out CFLAGS entry that can be uncommented to compile thread
lock debug into libc_r. I don't know if this is the best place to document
this, but at least it is recorded somewhere. 8-)
1998-06-09 23:25:13 +00:00
John Birrell
23c82db7a3 send and recv are wrappered in libc, so they shouldn't appear here. 1998-06-01 02:12:15 +00:00
John Birrell
8680cc3c47 Remove some syscalls that should have been renamed (libc_r doesn't need
to wrapper them) and add a couple that should have been there.
1998-05-31 23:53:50 +00:00
Peter Dufault
8a6472b723 Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and
_KPOSIX_PRIORITY_SCHEDULING options to work.  Changes:

Change all "posix4" to "p1003_1b".  Misnamed files are left
as "posix4" until I'm told if I can simply delete them and add
new ones;

Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux;

Add man pages for _POSIX_PRIORITY_SCHEDULING system calls;

Add options to LINT;

Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
John Birrell
96ef575882 Add lib/libc/include as an directory to search for header files.
Change MACHINE references to MACHINE_ARCH.

Declare the names of the syscalls that need to be renamed to allow
for the functions that libc_r provides replacements for. This list
used to be in lib/libc/sys/Makefile.inc, but has been moved here
to keep that makefile tidy and remove the temptation for people to
add things to the list without adding a libc_r replacement function.
1998-03-09 05:09:43 +00:00
John Birrell
7f351fbb21 Use libc makefiles from now on instead of duplicating them in libc_r.
Added Id strings too. It's useful to know who last made a change.
1997-05-03 03:57:21 +00:00
Julian Elischer
c840cec7c5 Submitted by: John Birrell
uthreads update from the author.
1997-02-05 23:26:09 +00:00
Peter Wemm
1d4b71eaa3 Don't create/install libc_r_pic.a 1996-08-30 01:43:15 +00:00