Commit Graph

1518 Commits

Author SHA1 Message Date
Warner Losh
2c0959ae6b Powerpc is special here. powerpc and powerpc64 use different ABIs, so
their implementations aren't in the same files.  Introduce LIBC_ARCH
and use that in preference to MACHINE_CPUARCH.  Tested by amd64 and
powerpc64 builds (thanks nathanw@)
2010-08-24 20:54:43 +00:00
Warner Losh
25faff346c MFtbemd:
Prefer MACHNE_CPUARCH to MACHINE_ARCH in most contexts where you want
to test of all the CPUs of a given family conform.
2010-08-23 22:24:11 +00:00
Konstantin Belousov
ea246b6369 On shared object unload, in __cxa_finalize, call and clear all installed
atexit and __cxa_atexit handlers that are either installed by unloaded
dso, or points to the functions provided by the dso.

Use _rtld_addr_phdr to locate segment information from the address of
private variable belonging to the dso, supplied by crtstuff.c. Provide
utility function __elf_phdr_match_addr to do the match of address against
dso executable segment.

Call back into libthr from __cxa_finalize using weak
__pthread_cxa_finalize symbol to remove any atfork handler which
function points into unloaded object.

The rtld needs private __pthread_cxa_finalize symbol to not require
resolution of the weak undefined symbol at initialization time. This
cannot work, since rtld is relocated before sym_zero is set up.

Idea by:	kan
Reviewed by:	kan (previous version)
MFC after:	3 weeks
2010-08-23 15:38:02 +00:00
Konstantin Belousov
e048186a62 Introduce implementation-private rtld interface _rtld_addr_phdr, which
fills struct dl_phdr_info for the shared object that contains the
specified address, if any.

Idea and reviewed by:	kan
MFC after:	3 weeks
2010-08-23 15:27:03 +00:00
Konstantin Belousov
2793b01844 Use aux vector to get values for SSP canary, pagesize, pagesizes array,
number of host CPUs and osreldate.

This eliminates the last sysctl(2) calls from the dynamically linked image
startup.

No objections from:	kan
Tested by:	marius (sparc64)
MFC after:	1 month
2010-08-17 09:13:26 +00:00
Joel Dahl
c2025a7660 Fix typos, spelling, formatting and mdoc mistakes found by Nobuyuki while
translating these manual pages.  Minor corrections by me.

Submitted by:	Nobuyuki Koganemaru <n-kogane@syd.odn.ne.jp>
2010-08-16 15:18:30 +00:00
Joel Dahl
edfa427cf1 Spelling fixes. 2010-08-02 16:01:45 +00:00
Ed Schouten
8b18f12fc6 Also link getutxent.3 to utmpx.3.
If you run `man utmpx', you expect to get some info on it.
2010-07-21 08:51:38 +00:00
Nathan Whitehorn
8869de5e55 The 64-bit PowerPC ABI implemented in binutils 2.15 requires some special
quirks for weak-symbol handling. Text symbols require also marking weak
the special dot-symbol associated with the function, and data symbols
require that you not do that. To fix this, provide a hacked
__weak_reference for powerpc64, and define a new __weak_reference_data
for the single weak data symbol in base.

Revert after:	binutils 2.17 import
Obtained from:	projects/ppc64
2010-07-10 14:39:08 +00:00
Ulrich Spörlein
a6dcdf3b5f mdoc: stop abusing -column lists and use .Bl -tag instead 2010-06-11 06:03:54 +00:00
Ulrich Spörlein
e3303e900e mdoc: spell macros correctly, there's no need for the backslash escape 2010-06-02 10:20:38 +00:00
Ulrich Spörlein
62486687ed mdoc: consistently spell our email addresses <foo@FreeBSD.org>
Reviewed by:	ru
2010-05-19 08:57:53 +00:00
Ulrich Spörlein
0afc94c17a mdoc: move CAVEATS, BUGS and SECURITY CONSIDERATIONS sections to the
bottom of the manpages and order them consistently.

GNU groff doesn't care about the ordering, and doesn't even mention
CAVEATS and SECURITY CONSIDERATIONS as common sections and where to put
them.

Found by:	mdocml lint run
Reviewed by:	ru
2010-05-13 12:07:55 +00:00
Gordon Tetlow
5b3fab81ab Fix a bug due to a type conversion from 64 to 32 bits. The side effect of
this type conversion is the high bits which were used to indicate if a
special character was a literal or special were dropped. As a result, all
special character were treated as special, even if they were supposed to
be literals.

Reviewed by:	gad@
Approved by:	mentor (wes@)
2010-05-12 17:44:00 +00:00
Jilles Tjoelker
8949fcf0dc raise(3): Note that this sends a signal to the current thread, not process.
This is how it works (with threading libraries loaded) and what POSIX
requires.

MFC after:	1 week
2010-05-07 17:20:15 +00:00
Jilles Tjoelker
c84cab5626 Update xrefs from 4.3BSD to modern signal functions in various man pages.
sigvec(2) references have been updated to sigaction(2), sigsetmask(2) and
sigblock(2) to sigprocmask(2), sigpause(2) to sigsuspend(2).

Some legacy man pages still refer to them, that is OK.
2010-05-06 22:49:54 +00:00
Jilles Tjoelker
67c8bc1bfb sysctl(3): Update description of various kern.* variables.
Also add xrefs for confstr(3) (as sysconf(3) but for strings) and kvm(3)
(which is a more convenient way to access some of the variables).

PR:		116480
MFC after:	1 week
2010-04-25 12:35:39 +00:00
Jilles Tjoelker
702f62fb48 getcwd(3): Clarify that EACCES may or may not be checked.
POSIX permits but does not require checking access on the current and parent
directories.

Because various programs do not like it if getcwd(3) fails, it seems best
to avoid checking access as much as possible. There are various reports in
GNATS about this (search for getcwd).

Our getcwd(3) implementation first queries the kernel for the pathname
directly, which does not check any permissions but sometimes fails, and then
falls back to reading all parent directories for the names.

PR:		standards/44425
MFC after:	2 weeks
2010-04-17 15:52:50 +00:00
Jilles Tjoelker
139ac6b239 fnmatch: Fix bad FNM_PERIOD disabling if an asterisk has been seen.
Example: fnmatch("a*b/*", "abbb/.x", FNM_PATHNAME | FNM_PERIOD)

PR:		116074
MFC after:	1 week
2010-04-16 22:29:24 +00:00
Ulrich Spörlein
aa12cea2cc mdoc: order prologue macros consistently by Dd/Dt/Os
Although groff_mdoc(7) gives another impression, this is the ordering
most widely used and also required by mdocml/mandoc.

Reviewed by:	ru
Approved by:	philip, ed (mentors)
2010-04-14 19:08:06 +00:00
Ulrich Spörlein
e03aa09b61 mdoc: don't abuse Bo/Pc to get what looks like an interval
Be explicit and use the general bracketing form plus symbols which are
to be interpreted mathematically in this case.

Complaint by:	mdocml
Reviewed by:	ru
Approved by:	philip, ed (mentors)
2010-04-14 18:29:34 +00:00
Ulrich Spörlein
a17c1cc009 mdoc: remove .Pp where not needed
This trips up mdocml and can simply go away.

Reviewed by:	ru
Approved by:	philip, ed (mentors)
2010-04-14 18:29:26 +00:00
Xin LI
64c12e81e2 Add prototype for libc internal interfaces. 2010-03-31 18:37:00 +00:00
Xin LI
9fd9d097aa Add prototypes for libc private interfaces.
While I'm there, apply __unused whenever appropriate.

Reviewed by:	md5(1)
2010-03-31 18:36:04 +00:00
Pietro Cerutti
071ab531db - Remove const'ness from dlerror(3) prototype, for consistency with POSIX.
Approved by:	cognet
MFC after:	1 week
2010-03-24 15:59:51 +00:00
Ed Schouten
070f2a9831 Let opendir() use O_DIRECTORY.
I am not removing the fstat() calls here, since we cannot yet assume
people will always run kernels that respect O_DIRECTORY.
2010-03-21 20:45:06 +00:00
Poul-Henning Kamp
156a1661a6 Comment a fine point, so it does not get lost when people borrow code
from FreeBSD for other purposes.
2010-03-15 08:58:35 +00:00
Joel Dahl
e1c6ef6aa4 The NetBSD Foundation has granted permission to remove clause 3 and 4 from
their software.

Obtained from:	NetBSD
2010-03-02 17:20:04 +00:00
Edwin Groothuis
dcfeda6122 Split the contributed code from libc/stdtime from lib/libc/stdtime
to contrib/tzcode/stdtime.
2010-02-26 06:44:00 +00:00
Konstantin Belousov
4d44fc9c59 Make pause(3) implementation not depended on the legacy sigcompat.c
interfaces. Do not block rt signals during and after pause(3) calls.
Use private libc namespace to call proper methods.

MFC after:	1 week
2010-02-25 13:51:11 +00:00
Ed Schouten
3878829eeb While there, trim some trailing whitespace. 2010-02-21 14:58:01 +00:00
Ed Schouten
62399df2c9 Add proper const keywords to sysctl(3) parameters.
The `name' and `newp' arguments can be marked const, because the buffers
they refer to are never changed. While there, perform some other
cleanups:

- Remove K&R from sysctl.c.
- Implement sysctlbyname() using sysctlnametomib() to prevent
  duplication of an undocumented kernel interface.
- Fix some whitespace nits.

It seems the prototypes are now in sync with NetBSD as well.
2010-02-21 13:57:02 +00:00
Marcel Moolenaar
9436852167 The static TLS size as given by tls_static_space includes TLS_TCB_SIZE
bytes of TCB in variant I.
2010-02-16 02:22:59 +00:00
Ed Schouten
1e7a08440a Also add a cross-reference to NetBSD updlastlogx(). 2010-02-03 19:31:02 +00:00
Gavin Atkinson
9ba42503a5 Bump .Dd, forgotten in r203393
Approved by:	ed (mentor, implicit)
MFC after:	1 week
2010-02-02 19:44:51 +00:00
Gavin Atkinson
028a9a13eb The multiplicand a = 0x5deece66d = 25214903917, not 0xfdeece66d.
This bug in the man page has gone unnoticed for over 15 years!

PR:		docs/143461
Submitted by:	Jeremy Huddleston  jeremyhu apple.com
Approved by:	ed (mentor, implicit)
MFC after:	1 week
2010-02-02 19:28:01 +00:00
Ed Schouten
49e5c8f314 Perform some cleanups to devname(3).
- Make sure the mode argument is either a character or a block device.
- Use S_IS*() instead of checking S_IF*-flags by hand.
- Don't use kern.devname when the argument is already NODEV.
- Always call snprintf with the proper amount of arguments corresponding
  with the format.
- Perform some whitespace fixes. Tabs instead of 4 spaces, missing space
  for return statement.
- Remove unneeded includes.
2010-01-31 14:51:04 +00:00
Ed Schouten
bcc7f0f408 Remove pseudo-terminals from ttys(5).
When we had utmp(5), we had to list all the psuedo-terminals in ttys(5)
to make ttyslot(3) function properly. Now that pututxline(3) deals with
slot allocation internally (not based on TTY names), we don't need to
list all the TTYs on the system in ttys(5) to make user accounting work
properly.

This patch removes all the entries from the /etc/ttys files, but also
the pts(4) entries that were appended implicitly, which was added in
r154838.
2010-01-27 11:54:42 +00:00
Ed Schouten
89c3567d32 Improve the ttyname(3) manual page.
- Remove unrelated references to tty(5).
- Remove unneeded relation with FILE *.
- Add better cross references.
2010-01-24 14:44:05 +00:00
Ed Schouten
9d98195dc3 EMPTY records don't have a timestamp. 2010-01-23 17:58:40 +00:00
Antoine Brodin
dd554467bb Reapply r201145 to lib/libc/gen/sem.c 2010-01-23 12:48:46 +00:00
Ed Schouten
a7607816bf Just ignore the timestamps given to pututxline().
I've noticed many applications do a bad job at timekeeping, for several
reasons:

- Applications like screen(1) don't update time records when restoring
  the old user login record.
- Many applications only set ut_tv.tv_sec, not ut_tv.tv_usec.

This causes many problems for tools such as ac(8), which require the
timestamps to be properly ordered. This is why I've decided to let the
utmpx code obtain valid timestamps itself.
2010-01-23 08:43:21 +00:00
Ed Schouten
f5ec5ddec2 English nitpicking.
Submitted by:	jmallett
2010-01-22 05:19:51 +00:00
Ed Schouten
5b2e6b2a90 Describe why pututxline() doesn't entirely conform to standards. 2010-01-22 05:09:10 +00:00
Ed Schouten
d17ad825d6 Remove comments about breaking the specification.
I've discussed this issue with the Austin Group and it will be fixed in
future revisions of the specification. The issue was that ut_line fields
weren't supposed to be valid for LOGIN_PROCESS entries, while
getutxline() would try to match these records anyway.

They also agreed on our way of implementing pututxline() without
getutxid() (which other operating systems also do), but unfortunately
they disagreed with our way of replacing DEAD_PROCESS entries, which is
a pity. The current specification allows the utmpx database to become
infinitely big over time.

See also:	http://austingroupbugs.net/view.php?id=213#c378
2010-01-22 04:53:08 +00:00
Andrey A. Chernov
5fc5e42a2e Style: reword comment.
Submitted by:   bde
2010-01-20 11:59:46 +00:00
Andrey A. Chernov
e5732e1803 For alphasort() add reference to strcoll(3) 2010-01-20 11:55:14 +00:00
Andrey A. Chernov
e5c9c8533d Style: rename internal function to opendir_compar()
Pointed by:     bde
2010-01-20 07:36:29 +00:00
Andrey A. Chernov
888ee87295 Style: remove extra empty line in the comment.
Pointed by:     bde
2010-01-20 07:27:56 +00:00
Ed Schouten
26f87cc6ff Revert r202447 by re-exposing the old uname(3) function.
It makes hardly any sense to expose a symbol which should only be
provided for binary compatibility, but it seems we don't have a lot of
choice here. There are many autoconf scripts out there that try to
create a binary that links against the old symbol to see whether
uname(3) is present. These scripts fail to detect uname(3) now.

It should be noted that the behaviour we implement is not against the
standards:

| The following shall be declared as a function and may also be defined
| as a macro:
|
| int uname(struct utsname *);
2010-01-19 23:07:12 +00:00