Commit Graph

15203 Commits

Author SHA1 Message Date
jilles
1bc49fde32 dup(2): Clarify return value, in particular of dup2(). 2013-05-31 22:09:31 +00:00
jilles
a9aa217d94 sigaction(2): *at system calls are async-signal safe. 2013-05-31 21:31:38 +00:00
jilles
1d33a1f2f5 sigaction(2): Extend description of async-signal safe functions:
* Improve description when unsafe functions are unsafe.
* Add various safe functions from POSIX.1-2008 and Austin Group issue #692.
2013-05-31 21:25:51 +00:00
jilles
c541a64022 fork(2): Add information about fork() in multi-threaded processes.
There is nothing about pthread_atfork(3) or extensions like calling
malloc(3) in the child process as this may be unreliable or broken.
2013-05-31 20:46:08 +00:00
jilles
4fce276969 fork(2): #include <sys/types.h> is not needed. 2013-05-31 14:48:37 +00:00
delphij
8be1d9016e MFV: libpcap 1.4.0.
MFC after:	4 weeks
2013-05-30 08:02:00 +00:00
ed
3518016268 Add __sync_synchronize().
This function can easily be implemented on top of the mb() macro
provided by <machine/atomic.h>.
2013-05-30 06:20:50 +00:00
ed
7278ecd11a Use #ifdef instead of #if defined.
This makes these tests a bit more consistent with the tests done at the
bottom of the file.
2013-05-30 06:20:23 +00:00
das
fd1293ba31 I'm happy to finally commit stephen@'s implementations of cacos,
cacosh, casin, casinh, catan, and catanh. Thanks to stephen@ and bde@
for working on these.

Submitted by:	stephen@
Reviewed by:	bde
2013-05-30 04:49:26 +00:00
emaste
92a0da3686 Remove clause 3 and 4 from TNF licenses
Per the NetBSD Foundation statement
  Third parties are encouraged to change the license on any files which
  have a 4-clause license contributed to the NetBSD Foundation to a
  2-clause license.
2013-05-29 01:54:10 +00:00
emaste
15a12aabf8 Remove the advertising clause from the Regents of the University of
California's license, per the letter dated July 22, 1999.
2013-05-28 21:05:06 +00:00
emaste
324e4c082c Renumber clauses to reduce diffs to other versions
NetBSD, OpenBSD, and Android's Bionic number the clauses 1 through 3,
so follow suit to make comparison easier.
2013-05-28 20:57:40 +00:00
emaste
3f99d602fd Remove the advertising clause from the Regents of the University of
California's license, per the letter dated July 22, 1999.
2013-05-28 20:37:48 +00:00
kib
3b78cc7c0f The getcontext() from the __fillcontextx() call in the
check_deferred_signal() returns twice, since handle_signal() emulates
the return from the normal signal handler by sigreturn(2)ing the
passed context.  Second return is performed on the destroyed stack
frame, because __fillcontextx() has already returned.  This causes
undefined and bad behaviour, usually the victim thread gets SIGSEGV.

Avoid nested frame and the need to return from it by doing direct call
to getcontext() in the check_deferred_signal() and using a new private
libc helper __fillcontextx2() to complement the context with the
extended CPU state if the deferred signal is still present.

The __fillcontextx() is now unused, but is kept to allow older
libthr.so to be used with the new libc.

Mark __fillcontextx() as returning twice [1].

Reported by:	pgj
Pointy hat to:	kib
Discussed with:	dim
Tested by:	pgj, dim
Suggested by:	jilles [1]
MFC after:	1 week
2013-05-28 04:54:16 +00:00
kargl
e8f2493b10 Style(9)
Approved by:	das (implicit)
Reported by:	jh
2013-05-27 22:45:05 +00:00
jilles
fa9e5ab43d cap_rights_limit(2): CAP_ACCEPT also permits accept4(2). 2013-05-27 21:37:19 +00:00
kargl
4cd6fbfd09 * Update polynomial coefficients.
* Use ENTERI/RETURNI to allow the use of FP_PE on i386 target.

Reviewed by:	das (and bde a long time ago)
Approved by:	das (mentor)
Obtained from:	bde (polynomial coefficients)
2013-05-27 20:43:16 +00:00
kib
9aa628d621 Partially apply the capitalization of the heading word of the sequence
and fix typo.

Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2013-05-27 18:45:45 +00:00
das
e7b0a63c19 Fix some regressions caused by the switch from gcc to clang. The fixes
are workarounds for various symptoms of the problem described in clang
bugs 3929, 8100, 8241, 10409, and 12958.

The regression tests did their job: they failed, someone brought it
up on the mailing lists, and then the issue got ignored for 6 months.
Oops. There may still be some regressions for functions we don't have
test coverage for yet.
2013-05-27 08:50:10 +00:00
marcel
ff42d21b8e Make the malloc(3) family of functions weak and make their non-weak
implementations visible for use by applications. The functions $F that
are now weak symbols are:
	allocm, calloc, dallocm, free, malloc, malloc_usable_size,
	nallocm, posix_memalign, rallocm, realloc, sallocm

The non-weak implementations of $F are exported as __$F.

Submitted by:	stevek@juniper.net
Reviewed by:	jasone@, kib@
Approved by:	jasone@ (jemalloc)
Obtained from:	juniper Networks, Inc
2013-05-25 18:59:11 +00:00
jilles
843b520e07 sigreturn(2): Remove ancient compatibility warning about 4.2BSD.
The HISTORY subsection still says that sigreturn() was added in 4.3BSD.
2013-05-25 13:59:40 +00:00
ed
dcb48cfa2b Make some tiny improvements to iconv_open().
- Remove an unneeded variable.
- Fix whitespace bugs.
- Fix typoes in comment.
- Improve string handling a bit. Don't handroll strstr() and don't
  terminate a strdup()'ed string. Instead, simply strndup() the part we
  need.
2013-05-25 12:13:54 +00:00
ed
3f589c4a65 Only call free() on something we allocated.
If we were already provided a struct _citrus_iconv (e.g. through
iconv_open_into()), we should not call free() in case io_init_context()
fails. Instead, call it on the pointer of the allocated object, which
will be NULL in case of iconv_open_into().
2013-05-25 12:11:20 +00:00
ed
6f8795b5ab Let iconv build on -HEAD properly.
- Add NO_WMISSING_VARIABLE_DECLARATIONS where we use Yacc/Lex.
- Add variable declarations where possible.
- Add missing static keyword.
2013-05-23 18:07:01 +00:00
ed
3e86f64f24 Update manpages for r250887.
Remove the lists of unneeded header files.

Requested by:	eadler
2013-05-21 21:39:18 +00:00
ed
05bd8275f3 Add <uchar.h>.
The <uchar.h> header, part of C11, adds a small number of utility
functions for 16/32-bit "universal" characters, which may or may not be
UTF-16/32. As our wchar_t is already ISO 10646, simply add light-weight
wrappers around wcrtomb() and mbrtowc().

While there, also add (non-yet-standard) _l functions, similar to the
ones we already have for the other locale-dependent functions.

Reviewed by:	theraven
2013-05-21 19:59:37 +00:00
marcel
42ec29f8c3 Add a makefle that recurses into the right architecture-specific
sub-directory. This to allow simpler logic outside of the csu
directory.

Obtained from:	Juniper Networks, Inc.
2013-05-21 17:47:53 +00:00
julian
8eff18bd34 Update the setfib man page to reflect recent changes. 2013-05-20 20:47:40 +00:00
jilles
ea9572e1d0 popen(): Add 'e' mode character to set close-on-exec on the new fd.
If 'e' is used, the kernel must support the recently added pipe2() system
call.

The use of pipe2() with O_CLOEXEC also fixes race conditions between
concurrent popen() calls from different threads, even if the close-on-exec
flag on the fd of the returned FILE is later cleared (because popen() closes
all file descriptors from earlier popen() calls in the child process).
Therefore, this approach should be used in all cases when pipe2() can be
assumed present.

The old version of popen() rejects "re" and "we" but treats "r+e" like "r+".
2013-05-20 17:31:18 +00:00
davidxu
3eb907a897 Return one-based key so that user can check if the key is ever allocated
in the first place.

Initial patch submitted by: phk
2013-05-16 03:01:04 +00:00
hiren
882d7c2be5 Fix a typo: It should be "strtoll" and not "stroll".
PR:	178642
Reported by:	Michael Galassi (michaelgalassi@gmail.com)
Approved by:	sbruno (mentor)
MFC after:	1 week
2013-05-14 20:25:07 +00:00
dim
e951d35193 Use an ugly hack to get around bootstrapping problems when building
clang on head between r239347 and r245428.

The former revision introduced CLOCK_PROCESS_CPUTIME_ID as a clock id
for the clock_gettime() function and friends, but it was only added in
<sys/time.h>, not in <time.h>.  Any program including <time.h> would
therefore not be able to use CLOCK_PROCESS_CPUTIME_ID, even though the
value of _POSIX_CPUTIME indicates its existence.  The latter revision
synchronized the defines again.

Work around this problem by defining the id on the command line for the
particular .cpp file that needs it.  If the id ever changes value, this
hack will need to be updated.
2013-05-13 20:14:58 +00:00
joel
05a725b2d7 mdoc sweep. 2013-05-12 22:22:12 +00:00
eadler
6907881cb8 Fix several typos
PR:		kern/176054
Submitted by:	Christoph Mallon <christoph.mallon@gmx.de>
MFC after:	3 days
2013-05-12 16:43:26 +00:00
pluknet
43885dc4e0 Typo. 2013-05-12 05:54:58 +00:00
jilles
dcf8371952 posix_spawn_file_actions_adddup2(3): Document difference with dup2().
The ability to clear a file descriptor's close-on-exec flag via
posix_spawn_file_actions_adddup2() is in fact proposed in Austin Group issue
#411.

MFC after:	1 week
2013-05-09 21:29:13 +00:00
jilles
bbb5917525 posix_spawn_file_actions_addopen(3): Correct error for bad file descriptor.
As per POSIX.1-2008, posix_spawn_file_actions_add* return [EBADF] if a file
descriptor is negative, not [EINVAL]. The bug was only in the manual page;
the code is correct.

MFC after:	1 week
2013-05-09 16:42:01 +00:00
jilles
a222062d02 wordexp(): Simplify code by deferring work to sh. 2013-05-09 11:43:45 +00:00
davidxu
bc7bbd0706 Fix return value for setcontext and swapcontext. 2013-05-09 04:41:03 +00:00
trociny
bcc512fd43 Make errbuf optional, so if a caller is not interested in an error
message she can pass NULL (procstat(1) already does this).

MFC after:	2 weeks
2013-05-08 19:11:47 +00:00
emaste
550d992a33 Add libusb_get_port_path wrapper
This follows the libusbx API reference at
http://libusbx.sourceforge.net/api-1.0/group__dev.html

Reviewed by: hselasky@
2013-05-08 00:55:29 +00:00
emaste
b4216c2acc Constify libusb_get_pollfds return
The correct return type, per our libusb(3) man page and the libusb.org
and libusbx projects (whose interface we intend to follow for our libusb),
is const struct libusb_pollfd **.

Unfortunately the doxygen-generated libusbx API documentation[1] omits[2]
the const for some reason.

[1] http://libusbx.sourceforge.net/api-1.0/group__poll.html#gab1a72869a926552b27a6c667695df3a2

[2] http://sourceforge.net/mailarchive/forum.php?thread_name=497D10BE.8090007%40n-dimensional.de&forum_name=libusb-devel

Reviewed by: hselasky@
2013-05-07 20:35:47 +00:00
delphij
3aa8c3c45d MFV: Update zlib to 1.2.8.
MFC after:	1 month
2013-05-05 06:20:49 +00:00
pluknet
bf7b6b6227 POSIX 1003.1-2008: add ENOTRECOVERABLE, EOWNERDEAD errnos. 2013-05-04 19:07:22 +00:00
pluknet
0c8dbadb69 Document that the return type is different from 1003.1-2008.
MFC after:	1 week
2013-05-04 17:21:44 +00:00
pluknet
3b34730a0b mdoc: missing comma in .Dd macro. 2013-05-04 17:06:47 +00:00
pluknet
17f70d0a20 Add entry for errno ECAPMODE.
MFC after:	3 days
2013-05-04 12:57:21 +00:00
pluknet
928c28fb58 Bump date. 2013-05-04 12:44:00 +00:00
jilles
7e54181d8d libkvm: Make second /dev/null file descriptor close-on-exec as well.
MFC after:	1 week
2013-05-04 11:45:48 +00:00
jilles
d773898c97 libkvm: Use O_CLOEXEC instead of separate fcntl(F_SETFD) call.
MFC after:	1 week
2013-05-04 09:47:51 +00:00