Commit Graph

145 Commits

Author SHA1 Message Date
Bruce Evans
fb59427e5c Fixed missing installation of a link to rand_r.3. 1999-12-23 16:00:50 +00:00
Sheldon Hearn
b3c5295256 Document the current behaviour with respect to the handling of errno.
Approved by:	phk
1999-12-22 17:04:46 +00:00
Jordan K. Hubbard
f8d7aff7a0 Fix handling of trailing :'s to match what other OSes do (spit out
a diagnostis).

Submitted by:	Guy Harris <gharris@flashcom.net>
1999-12-17 01:52:15 +00:00
Chris Costello
a70b5c6a96 Add a cross-reference to fabs(3) man page.
PR:		docs/15337
Submitted by:	Bruce A. Mah <bmah@ca.sandia.gov>
1999-12-07 23:09:58 +00:00
Kris Kennaway
a8b4fa4aaf Typo
Obtained from:	OpenBSD
1999-11-15 03:13:23 +00:00
Peter Wemm
0d052386ba Go to a bit more trouble to make it absolutely clear that malloc(3)
does not zero the allocated memory.
1999-11-12 16:41:21 +00:00
Chris Costello
0df0b5481f Change .Fn to .Xr on a couple of lines where abort(3) is referenced. 1999-09-25 22:42:12 +00:00
Peter Wemm
b60a120f4b Tidy up $Log$ debris. 1999-09-05 17:42:45 +00:00
Peter Wemm
a1a4f1a0d8 $Header$ -> $FreeBSD$ 1999-08-28 05:11:36 +00:00
Peter Wemm
7f3dea244c $Id$ -> $FreeBSD$ 1999-08-28 00:22:10 +00:00
Mike Pritchard
74804d58a0 Various man page cleanup:
- Sort xrefs
- FreeBSD.ORG -> FreeBSD.org
- Be consistent with section names as outlines in mdoc(7)
- Other misc mdoc cleanup.

PR:		doc/13144
Submitted by:	Alexy M. Zelkin <phantom@cris.net>
1999-08-15 09:51:25 +00:00
Chris Costello
a251398eea Fix .Xr line for `getpagesize' 1999-08-14 07:33:15 +00:00
Tim Vanderhoek
cc5aedfb1a Mention that EXIT_SUCCESS and EXIT_FAILURE are preferred over
sysexits.h-values as exit codes for portable programs.
1999-08-01 20:46:45 +00:00
Nik Clayton
fbc400a67a Add $Id$, to make it simpler for members of the translation teams to
track.

The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;

     .\"    $Id$
     .\"

If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.

Approved by:            bde
1999-07-12 20:50:10 +00:00
Dag-Erling Smørgrav
65b97b034e Back out previous commit after discussing it with Dmitrij Tejblum. 1999-07-07 21:01:20 +00:00
Dag-Erling Smørgrav
c58b5cffa1 Always set errno to ENOMEM when returning 0 from malloc() or realloc().
Approved by:	phk
1999-07-07 19:54:08 +00:00
Wes Peters
b7edcd43b5 Added Posix rand_r function. 1999-05-24 23:30:14 +00:00
Poul-Henning Kamp
5b26e84968 Disable the "Hint" option in phkmalloc as default. Recent VM system
changes have made this too expensive.  This gains about 1.25% on
worldstone on my SMP machine.

Swap-less machines, for instance PicoBSDs, and machines which experience
page-out trafic, check with top(1), will probably want to reenable this
with:
	ln -s H /etc/malloc.conf

Suggested by: alc (&dyson ?)
1999-03-28 14:16:05 +00:00
Guy Helmer
6e062fe1b7 Correct synopsys: getsubopt is declared in unistd.h, not stdlib.h.
PR:		docs/9376
1999-03-02 02:35:57 +00:00
Andrey A. Chernov
be92e0e6cd fix tabs lost apparently in copy&paste 1999-02-12 19:45:53 +00:00
Joseph Koshy
221188c6cb Clarify format of exit status code. Note when a return code of -1 can
be expected.

PR:		docs/9701
Submitted by:	Marc van Kempen <marc@bowtie.nl>
1999-01-27 03:54:09 +00:00
Robert Nordier
8d2c3c32bd Include mergesort() in description of errors. 1998-11-04 09:27:03 +00:00
Robert Nordier
df5a1b840e Drop unused labels. 1998-11-04 09:22:07 +00:00
Robert Nordier
7fb5f2bae4 Handle a zero elements argument.
PR:		8566
Submitted by:	Archie Cobbs <archie@whistle.com>
1998-11-04 08:55:34 +00:00
John Birrell
a0aa389007 Delete the XXX comments that refer to spinlock recursion. The malloc/free/
realloc functions check for recursion within the malloc code itself. In
a thread-safe library, the single spinlock ensures that no two threads
go inside the protected code at the same time. The thread implementation
is responsible for ensuring that the spinlock does in fact protect malloc.
There was a window of opportunity in which this was not the case. I'll fix
that with a commit RSN.
1998-09-30 06:13:59 +00:00
Doug Rabson
cea1d019fe Use 8k pagesize on alpha, not 4k. 1998-09-23 21:26:04 +00:00
Alexander Langer
d988805a1f Back out part of previous commit (even though it's technically correct).
Our spinlock implementation allows a particular thread to obtain a lock
multiple times, but release the lock with a single unlock call.  Since
we're detecting recursion, we know the lock is already owned by the
current thread in a previous call and must not be released in the
current call.  This is really far too dependent on this particular
spinlock implementation, so I've added commented out calls to
THREAD_UNLOCK in the appropriate places.  We can activate this code when
spinlock is taught to count each lock operation.
1998-09-20 01:07:50 +00:00
Alexander Langer
366248e086 Correctly back out of free if a recursive call into malloc.c is detected.
Set malloc_func *after* grabbing the thread lock.

Noticed by:	Simon Coggins <simon@oz.org>
1998-09-19 20:55:36 +00:00
Warner Losh
e8420087b0 Replace memory leaking instances of realloc with non-leaking reallocf.
In some cases replace if (a == null) a = malloc(x); else a =
realloc(a, x); with simple reallocf(a, x).  Per ANSI-C, this is
guaranteed to be the same thing.

I've been running these on my system here w/o ill effects for some
time.  However, the CTM-express is at part 6 of 34 for the CAM
changes, so I've not been able to do a build world with the CAM in the
tree with these changes.  Shouldn't impact anything, but...
1998-09-16 04:17:47 +00:00
Warner Losh
e70c6df958 o Don't reference non-existant function freealloc.
o Properly order things

Pointed out by: bde
1998-09-16 04:07:31 +00:00
Warner Losh
9a5722f2e8 Fix style problems noted by Bruce:
o No copyright on reallocf.
	o Order makefile list correctly.
	o indent reallocf properly.
1998-09-16 03:16:06 +00:00
Warner Losh
94ad719cf4 Add reallocf to the library. This function is simliar to realloc, but
when it returns NULL to indicate failure, it will also free the memory
that was passed to it, if that was non-null.

This does not change the semantics of realloc.

A second commit will be done to commit the conversion of those places in
the code that can safely use this to avoid memory leaks when confronted
with low memory situations.

Beaten-to-death-but-finally-approved-in: -current
1998-09-14 20:34:34 +00:00
Peter Wemm
2f92c56cc3 preserve errno across the readlink() calls. There is no value in trashing
errno during a successful malloc() call.
1998-06-18 09:13:16 +00:00
John Birrell
3d853e107e Add support for thread lock debug. No impact of the malloc code. 1998-06-09 08:30:32 +00:00
John Birrell
184fcab826 This is a hack to workaround source that is coded to use long variables
but also assumes that they are 32-bits. This is one place where I don't
think it is appropriate to change 'long' to 'int'. I don't see why the
code couldn't be fixed so that using natural long variables does the
right thing. It's spaggetti code so it'll take some effort. Obviously
NetBSD thought so too because they change 'long' to 'int32_t' etc
and left it at that. As a temporary measure FreeBSD/Alpha can use the
NetBSD code and put this on the list of things to fix.
1998-05-08 05:41:57 +00:00
Robert Nordier
a55fccb456 Fix a few nits in quoted code fragments and elsewhere. 1998-05-04 23:16:50 +00:00
John Birrell
72b42edfd4 Replace the threaded locking with spinlock calls for both threaded
and non-threaded programs. This makes malloc thread safe for linking
with libpthread and kernel threads.

Reviewed by: phk
1998-04-29 09:10:58 +00:00
John Birrell
96c76d66db Reference an external variable in threaded programs so that the
autoinitialiser gets linked in and therefore called before main().
1998-04-29 09:08:43 +00:00
John Birrell
7317e6b1fd Use signal() in both the threaded and non-threaded cases. 1998-04-29 09:06:13 +00:00
Dima Ruban
b4d829b84f indent 1998-04-20 22:13:50 +00:00
Poul-Henning Kamp
af3c7c8d85 Remove a nolonger implented "BUGS" description.
PR:		6240
Reviewed by:	phk
Submitted by:	Niall Smart rotel@indigo.ie
1998-04-11 07:37:44 +00:00
John Birrell
f901bc2795 Add a global variable called __isthreaded that can be tested throughout
libc to determine if locking is required. This is needed in libc
for use with kernel threads, but until a thread is created, we don't
really want to bother locking things. The variable was added here
because the crt code calls exit(main()) so all programs will get the
variable.
1998-04-11 07:02:58 +00:00
John Birrell
5a2f1fed77 Change in name of the static initializer define. 1998-04-04 11:03:07 +00:00
Philippe Charnier
a5941fc2aa .Sh AUTHOR -> .Sh AUTHORS. Use .An/.Aq 1998-03-19 07:34:22 +00:00
John Birrell
e4193688da NetBSD doesn't have a utrace syscall, so don't define that if
__NETBSD_SYSCALLS is defined.
1998-03-09 07:00:38 +00:00
John Birrell
6af88557f9 Change MACHINE references to MACHINE_ARCH. 1998-02-20 08:41:46 +00:00
Alexander Langer
5a5b9efe70 Drop the use of caddr_t in conjunction with mmap(2). 1997-12-31 03:15:06 +00:00
John Birrell
d5bc59bb81 Fix recursion problem which occurs when a signal is received during
a malloc. The signal handler creates a thread which requires a malloc...
For now, the only thing to do is to block signals. When we move user
pthreads to use the kernel threads, mutexes will be implemented in kernel
space and then malloc can revert.
1997-12-15 02:12:42 +00:00
Bruce Evans
b966cc2394 Sorted lists. 1997-10-21 08:41:15 +00:00
Bruce Evans
a461908da4 Handle machine-dependent (stdlib) sources more automatically.
This fixes bugs in the manual handling.  abs.[cS] was handled too
specially and the wrong (.c) variant for each of div.[cS], labs.[cS]
and ldiv.[cS] was added to SRCS.  This caused the .c variant to be
used if `depend' was made and the .S version to be used otherwise.
1997-10-16 14:58:30 +00:00