Commit Graph

1530 Commits

Author SHA1 Message Date
Pedro F. Giffuni
ee90489bc4 Make use of GCC alloc_align attribute
This lets the compiler know about the alignment of pointers returned
by aligned_alloc(3), posix_memalign(3). and contigmalloc(9)

Currently this is only supported in recent gcc but we are ready to
use it if clang implements it.

Relnotes:	yes
2015-05-15 20:43:37 +00:00
Pedro F. Giffuni
d0e9981e39 No need for result_use_check attribute in reallocf(3). 2015-05-01 20:40:48 +00:00
Baptiste Daroussin
8f0baadaa0 Move reallocarray definition to the _BSD_VISIBLE block
Add the required __alloc_size attributes

Requested by:	pfg
2015-05-01 19:14:32 +00:00
Baptiste Daroussin
450dfafb15 Import reallocarray(3) from OpenBSD
Add a manpage for it, assign the copyright to the OpenBSD project on it since it
is mostly copy/paste from OpenBSD manpage.
style(9) fixes

Differential Revision:	https://reviews.freebsd.org/D2420
Reviewed by:	kib
2015-05-01 18:32:16 +00:00
Gleb Smirnoff
772e66a6fc Move ALTQ from contrib to net/altq. The ALTQ code is for many years
discontinued by its initial authors. In FreeBSD the code was already
slightly edited during the pf(4) SMP project. It is about to be edited
more in the projects/ifnet. Moving out of contrib also allows to remove
several hacks to the make glue.

Reviewed by:	net@
2015-04-16 20:22:40 +00:00
Tijl Coosemans
1243a98e38 Remove the const qualifier from iconv(3) to comply with POSIX:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/iconv.html

Adjust all code that calls iconv.

PR:		199099
Exp-run by:	antoine
MFC after:	2 weeks
2015-04-15 09:09:20 +00:00
Pedro F. Giffuni
153cbcd657 Make use of gcc attributes in some standard include headers.
The `nonnull' attribute specifies that some function parameters should be
non-null pointers.  This is very useful as it helps the compiler generate
warnings on suspicious code and can also enable some small optimizations.

Also start using 'alloc_size' attribute in the allocator functions.

This is an initial step to better integrate our libc with the compiler:
these attributes are fully supported by clang and they are also useful
for the static analyzer.

Note that due to some bogus internal procedure in the way gcc ports
are built they may require updating if they were built before r280801.

Relnotes:		yes
Hinted by:		Android's bionic libc
Differential Revision:	https://reviews.freebsd.org/D2107
2015-04-06 01:39:16 +00:00
Pedro F. Giffuni
4b069c8287 Clean some spaces vs tabs.
No, this file doesn't conform with KNF at all.
2015-03-29 20:20:45 +00:00
Pedro F. Giffuni
28cdb3ee15 Temporarily revert 280458.
GCC is still carries an old version of cdefs.h which doesn't
accept multiple parameters for the nonnull attribute.

Since this issue probably affects many ports in the tree
we will revert it for now until gcc gets fixed.
2015-03-25 21:53:17 +00:00
Pedro F. Giffuni
1693a59a64 Clean sparse spaces. 2015-03-25 16:54:37 +00:00
Pedro F. Giffuni
512cd1357a Introduce nonnull attributes in the signal and pthread headers.
The `nonnull' attribute specifies that some function parameters should be
non-null pointers.  This is very useful as it helps the compiler generate
warnings on suspicious code and can also enable some small optimizations.
In clang this is also useful for the static analyzer.

While we could go on defining this all over the tree, it only
makes sense to annotate a subset of critical functions.

Hinted by:		Android's bionic libc
Differential Revision:	https://reviews.freebsd.org/D2101
2015-03-24 20:33:24 +00:00
Bryan Drewery
addf340932 Correct and clarify comment for __SMBF.
MFC after:	2 weeks
Sponsored by:	EMC / Isilon Storage Division
2015-02-11 22:39:13 +00:00
Enji Cooper
7e4a2c2814 Sort the entries by build knob, then MACHINE_ARCH like other areas of the tree
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
2015-02-04 11:48:33 +00:00
Enji Cooper
b6f503dde0 Clean up more usb related files when MK_USB == no when dealing with
manpages, libraries, and binaries

MFC after: 1 week
X-MFC with: r278135
Sponsored by: EMC / Isilon Storage Division
2015-02-04 11:43:19 +00:00
Jilles Tjoelker
b90eeb5fb4 Ensure #include <semaphore.h> is sufficient for using SEM_VALUE_MAX.
Discussed with:	pluknet
2015-01-31 16:39:26 +00:00
Enji Cooper
8b77741ea7 Make install cuse headers if MK_CUSE != no
MFC after: 2 weeks
Sponsored by: EMC / Isilon Storage Division
2015-01-25 05:15:06 +00:00
Poul-Henning Kamp
c05bafc566 Deorbit the IEEE-488/GPIB support. 2014-12-25 20:15:13 +00:00
Enji Cooper
0341ccf227 Clean up more usb related files when MK_USB == no when dealing with
manpages, libraries, and binaries
2014-11-26 21:18:52 +00:00
Enji Cooper
046cc7b93e Account for /usr/include/protocols/r{outed,whod}.h with their respective build knobs 2014-11-26 12:54:58 +00:00
Enji Cooper
12de3059d0 Fix some accidentally inverted logic 2014-11-26 12:49:37 +00:00
Enji Cooper
466046ec0d Conditionalize a number of components in the tree
- bootparamd
- bootpd
- finger/fingerd
- ftp/ftpd
- hastctl/hastd
- iscsid, et al
- rbootd
- talk/talkd
- tcpd, et al
- tftp/tftpd

Add src.conf entries for the various components and do a best effort
at adding components to tools/build/mk/OptionalObsoleteFiles.inc
2014-11-26 08:44:05 +00:00
Rui Paulo
6bd000838c Fix the build by installing acpi_hpet.h correctly.
Submitted by:	jase
MFC after:	1 week
2014-10-24 23:25:11 +00:00
John Baldwin
53e1ffbbce The current POSIX semaphore implementation stores the _has_waiters flag
in a separate word from the _count.  This does not permit both items to
be updated atomically in a portable manner.  As a result, sem_post()
must always perform a system call to safely clear _has_waiters.

This change removes the _has_waiters field and instead uses the high bit
of _count as the _has_waiters flag.  A new umtx object type (_usem2) and
two new umtx operations are added (SEM_WAIT2 and SEM_WAKE2) to implement
these semantics.  The older operations are still supported under the
COMPAT_FREEBSD9/10 options.  The POSIX semaphore API in libc has
been updated to use the new implementation.  Note that the new
implementation is not compatible with the previous implementation.
However, this only affects static binaries (which cannot be helped by
symbol versioning).  Binaries using a dynamic libc will continue to work
fine.  SEM_MAGIC has been bumped so that mismatched binaries will error
rather than corrupting a shared semaphore.  In addition, a padding field
has been added to sem_t so that it remains the same size.

Differential Revision:	https://reviews.freebsd.org/D961
Reported by:	adrian
Reviewed by:	kib, jilles (earlier version)
Sponsored by:	Norse
2014-10-24 20:02:44 +00:00
Rui Paulo
3149cc9df6 HPET: create /dev/hpetN as a way to access HPET from userland.
In some cases, TSC is broken and special applications might benefit
from memory mapping HPET and reading the registers to count time.
Most often the main HPET counter is 32-bit only[1], so this only gives
the application a 300 second window based on the default HPET
interval.
Other applications, such as Intel's DPDK, expect /dev/hpet to be
present and use it to count time as well.

Although we have an almost userland version of gettimeofday() which
uses rdtsc in userland, it's not always possible to use it, depending
on how broken the multi-socket hardware is.

Install the acpi_hpet.h so that applications can use the HPET register
definitions.

[1] I haven't found a system where HPET's main counter uses more than
32 bit.  There seems to be a discrepancy in the Intel documentation
(claiming it's a 64-bit counter) and the actual implementation (a
32-bit counter in a 64-bit memory area).

MFC after:	1 week
Relnotes:	yes
2014-10-24 18:39:15 +00:00
Baptiste Daroussin
7cec355b9b Fix build with rpcgen using a recent (tested with gcc 4.9.1) GNU cpp 2014-10-09 06:58:33 +00:00
Xin LI
78b59024b5 Add explicit_bzero(3) and its kernel counterpart.
Obtained from:	OpenBSD
MFC after:	2 weeks
2014-10-07 04:54:11 +00:00
Pedro F. Giffuni
749cd43178 unistd: drop argument names from setpgrp(3) prototype.
They are useless and don't match the style of the header.
While here adjust the comment with tabs.

Suggested by:	kevinlo
2014-09-19 18:13:56 +00:00
Pedro F. Giffuni
d9446691c8 unistd: move setpgrp(2) to the __BSD_VISIBLE section
Our setpgrp(2) differs from the specified by POSIX, which
only has one argument, and is only meant for compatibility
with BSD.

Reference:
http://pubs.opengroup.org/onlinepubs/009695399/functions/setpgrp.html

Pointed-out in:	openbsd-tech (2014-09-16)
MFC after:	6 weeks
2014-09-18 17:18:42 +00:00
Ed Schouten
b58aba6b66 Roll back r271012 even more aggressively.
I've looked at the GCC sources and I now understand what's going wrong.
THe C11 keywords are simply nonexistent when using C++ mode. They are
marked as C-only in the parser. This is absolutely impractical for
multiple reasons:

- The C11 keywords do not conflict with C++ naming rules. They all start
  with _[A-Z]. There is no reason to make them C-only.

- It makes it practically impossible for people to use these keywords in
  C header files and expect them to work from within C++ sources.

As I said in my previous commit message: GCC is by far the weirdest
compiler that I've ever used.
2014-09-05 05:36:32 +00:00
Ed Schouten
62b7f85d47 Leave the C11 keywords alone when we have a recent version of GCC.
As GCC also gained support for the C11 keywords over time, we can patch
up <sys/cdefs.h> to not define these anymore. This has the advantage
that error messages for static assertions are printed natively and that
_Alignas() will work with even a type outside of C11 mode.

All C11 keywords are supported with GCC 4.7 and higher, with the
exception of _Thread_local and _Generic. These are only supported as of
GCC 4.9.
2014-09-03 09:35:38 +00:00
Pedro F. Giffuni
f4189cd649 Add bsearch_b to the libc map and the stdlib header.
bsearch_b is the Apple blocks enabled version of bsearch(3).
This was added to libc in Revision 264042 but the commit
missed the declaration required to make use of it.

While here move some other block-related functions to the
BSD_VISIBLE block as these are non-standard.

Phabric:	D638
Reviewed by:	theraven, wollman
2014-09-01 22:25:42 +00:00
Ed Schouten
49891e45d2 Add lock annotations to the header files of our threading libraries.
This change extends all of the functions present in the <pthread.h> and
<threads.h> headers to have lock annotations. This will allow Clang to
warn about the following:

- Locking a function twice,
- Unlocking a function without a mutex being locked,
- Forgetting to unlock a mutex before returning,
- Destroying or reinitializing a mutex that is currenty locked,
- Using an unlocked mutex in combination with a condition variable.

Enabling these annotations already allowed me to catch a bug in one of
our userspace tools (r270749).
2014-09-01 18:34:30 +00:00
Alexander Kabaev
7935fd6ef1 Add guards to ptrdiff_t definition in include/stddef.h
Back in 2011 obrien has added the #define macro in sys/sys/stddef.h to
guard ptrdiff_t. Add similar protection to the identical code in
include/stddef.h.

Submitted by:   Mariusz Zaborski <oshogbo@FreeBSD.org>
MFC after:      1 week
2014-08-21 15:10:10 +00:00
Hajimu UMEMOTO
e45764721a Update our stub resolver to final version of libbind.
Obtained from:	ISC
2014-08-12 12:36:06 +00:00
Hajimu UMEMOTO
e3c3754c06 We don't use these files. 2014-08-09 20:03:40 +00:00
Pedro F. Giffuni
046c3635cd Bring final version of libbind:
From
http://www.isc.org/downloads/libbind/

The libbind functions have been separated from the BIND suite as of BIND
9.6.0. Originally from older versions of BIND, they have been continually
maintained and improved but not installed by default with BIND 9. This
standard resolver library contains the same historical functions and
headers included with many Unix operating systems. In fact, most
implementations are based on the same original code.

At present, NetBSD maintains libbind code, now known as "netresolv".
2014-08-05 23:16:31 +00:00
Pedro F. Giffuni
9823a90c79 Add re-entrant versions of the hash functions based on the GNU api.
While testing this I found a conformance issue in hdestroy()
that will be fixed in a subsequent commit.

Obtained from:	NetBSD (hcreate.c, CVS Rev. 1.7)
2014-07-21 15:22:48 +00:00
Pedro F. Giffuni
1d717f206a Revert r268826:
The current ordering of this header is a feature as it
is more consistent with POSIX.
Also adding gratuitous newlines is not elegant.

Pointed out by:	bde
2014-07-18 16:21:15 +00:00
Pedro F. Giffuni
7bd26d4567 Minor sorting to match the NetBSD header
MFC after:	3 days
Obtained from:	NetBSD
2014-07-18 02:49:41 +00:00
John Baldwin
9f72c0322c Fix some edge cases with rewinddir():
- In the unionfs case, opendir() and fdopendir() read the directory's full
  contents and cache it.  This cache is not refreshed when rewinddir() is
  called, so rewinddir() will not notice updates to a directory.  Fix this
  by splitting the code to fetch a directory's contents out of
  __opendir_common() into a new _filldir() function and call this from
  rewinddir() when operating on a unionfs directory.
- If rewinddir() is called on a directory opened with fdopendir() before
  any directory entries are fetched, rewinddir() will not adjust the seek
  location of the backing file descriptor.  If the file descriptor passed
  to fdopendir() had a non-zero offset, the rewinddir() will not rewind to
  the beginning.  Fix this by always seeking back to 0 in rewinddir().
  This means the dd_rewind hack can also be removed.

While here, add missing locking to rewinddir().

CR:   	    	https://phabric.freebsd.org/D312
Reviewed by:	jilles
MFC after:	1 week
2014-07-11 16:16:26 +00:00
Tijl Coosemans
dd98737278 Don't install GSS-API headers when the GSSAPI option has been disabled.
Some ports assume GSS-API is supported when they find the headers.

PR:		189156
Submitted by:	Garrett Cooper <yanegomi@gmail.com>
2014-06-13 10:08:18 +00:00
Pedro F. Giffuni
1bb07edbd4 Fix strcasecmp_l() and strncasecmp_l() POSIX 2008 compliance.
POSIX.1-2008 specifies that those two functions should be declared by
including <strings.h>, not <string.h> (the latter only has strcoll_l()
and strxfrm_l()):

http://pubs.opengroup.org/onlinepubs/9699919799/functions/strcasecmp.html

Obtained from:	DragonFlyBSD
Reviewed by:	theraven
MFC after:	2 weeks
2014-05-30 01:09:07 +00:00
Hans Petter Selasky
fa0f6e62c6 Initial import of character device in userspace support for FreeBSD.
The CUSE library is a wrapper for the devfs kernel functionality which
is exposed through /dev/cuse . In order to function the CUSE kernel
code must either be enabled in the kernel configuration file or loaded
separately as a module. Currently none of the committed items are
connected to the default builds, except for installing the needed
header files. The CUSE code will be connected to the default world and
kernel builds in a follow-up commit.

The CUSE module was written by Hans Petter Selasky, somewhat inspired
by similar functionality found in FUSE. The CUSE library can be used
for many purposes. Currently CUSE is used when running Linux kernel
drivers in user-space, which need to create a character device node to
communicate with its applications. CUSE has full support for almost
all devfs functionality found in the kernel:
 - kevents
 - read
 - write
 - ioctl
 - poll
 - open
 - close
 - mmap
 - private per file handle data

Requested by several people. Also see "multimedia/cuse4bsd-kmod" in
ports.
2014-05-23 08:46:28 +00:00
Jilles Tjoelker
76902266ae include: Don't expose L_cuserid in strict C standard compliance mode.
L_cuserid is supposed to be exposed only for old POSIX, or in the default
(expose everything) environment.
2014-05-11 16:34:17 +00:00
Jilles Tjoelker
448f5f73dc include: Remove checks for __BSD_VISIBLE where redundant with __XSI_VISIBLE
or __POSIX_VISIBLE.

Whenever <sys/cdefs.h> sets __BSD_VISIBLE to non-zero, it also sets
__POSIX_VISIBLE and __XSI_VISIBLE to the newest version supported.

No functional change is intended.
2014-05-11 13:48:21 +00:00
Warner Losh
c6063d0da8 Use src.opts.mk in preference to bsd.own.mk except where we need stuff
from the latter.
2014-05-06 04:22:01 +00:00
Jilles Tjoelker
160c0c65d7 langinfo.h: Hide YESSTR and NOSTR in strict POSIX mode.
YESSTR and NOSTR are obsolete and are only in old SUS.
2014-04-19 12:38:01 +00:00
David Chisnall
46cdc14062 Add support for some block functions that come from OS X. These are
intended to build with any C compiler.

Reviewed by:	pfg
MFC after:	3 weeks
2014-04-02 16:07:48 +00:00
Tijl Coosemans
0a4c54d606 Rename __wchar_t so it no longer conflicts with __wchar_t from clang 3.4
-fms-extensions.

MFC after:	2 weeks
2014-04-01 14:46:11 +00:00
Gleb Smirnoff
45c203fce2 Remove AppleTalk support.
AppleTalk was a network transport protocol for Apple Macintosh devices
in 80s and then 90s. Starting with Mac OS X in 2000 the AppleTalk was
a legacy protocol and primary networking protocol is TCP/IP. The last
Mac OS X release to support AppleTalk happened in 2009. The same year
routing equipment vendors (namely Cisco) end their support.

Thus, AppleTalk won't be supported in FreeBSD 11.0-RELEASE.
2014-03-14 06:29:43 +00:00