Commit Graph

20384 Commits

Author SHA1 Message Date
Konstantin Belousov
65174f684c Fix _pthread_cancel_enter() and _pthread_cancel_leave() jmptable entries.
PR:	240022
Reported by:	Andrew Gierth <andrew@tao11.riddles.org.uk>
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2019-08-21 19:53:50 +00:00
Bryan Drewery
dc89d06976 Rework r339635 to fix .depend.tables.h handling.
Avoid touching the tables.h file unless it has changed to avoid unneeded
rebuilds.

Also revert r350301's explicit dependencies.

Reviewed by:	emaste
MFC after:	2 weeks
X-MFC-With:	r339635 (kevans request)
PR:		238828
Sponsored by:	DellEMC
Differential Revision:	https://reviews.freebsd.org/D21295
2019-08-16 22:34:10 +00:00
Ed Maste
3afdc7303c Add @generated tag to libc syscall asm wrappers
Although libc syscall wrappers do not get checked in this can aid in
finding the source of generated files when spelunking in the objdir.

Multiple tools use @generated to identify generated files (for example,
in a review Phabricator will by default hide diffs in generated files).
For consistency use the @generated tag in makesyscalls.sh as we've done
for other generated files, even though these wrappers aren't checked in
to the tree.
2019-08-16 14:14:57 +00:00
Matt Macy
86b5e013ed pmc: restore "unhalted-cycles" alias
Reported by:	mav@
2019-08-15 21:51:11 +00:00
Kyle Evans
a78c1027d7 Revert r351078, r351085: stand/quad.h eviction
It did not go well; further examination is required...
2019-08-15 17:15:32 +00:00
Kyle Evans
14a286867e libc quad.h: one last _STANDALONE correction 2019-08-15 16:28:05 +00:00
Kyle Evans
7ddaee2559 stand: kick out quad.h
Use quad.h from libc instead for the time being. This reduces the number of
nearly-identical-quad.h we have in tree to two with only minor changes.

Prototypes for some *sh*di3 have been added to match the copy in libkern.
The differences between the two are likely few enough that they can perhaps
be merged with little additional effort to bring us down to 1.

MFC after:	3 days
2019-08-15 15:47:48 +00:00
Ed Maste
ea0a30b145 compiler-rt: enable __bswapsi2/__bswapdi2 for RISC-V
As with other archs the compiler may emit calls to the byte swap routines
under certain conditions.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-08-14 18:41:28 +00:00
Konstantin Belousov
6b462d2762 Increase YPMAXRECORD to 16M to be compatible with Linux.
Since YP protocol definition uses the constant to declare
variable-size opaque byte strings, the change should be binary
compatible with existing installations which do not expose keys or
values larger than 1024 bytes.

All uses of local variables with YPMAXRECORD sizes were removed to
avoid insane stack use.  On the other hand, variables with static
lifetime should be fine and only result in increased VA use.

Glibc made same change, increasing the allowed length for keys and
values in YP to 16M, in 2013.

Reviewed by:	markj
Discussed with:	ian
Sponsored by:	Mellanox Technologies
MFC after:	3 weeks
Differential revision:	https://reviews.freebsd.org/D20900
2019-08-12 20:27:33 +00:00
Konstantin Belousov
a60c863ced wait(2): clarify reparenting of children of the exiting process.
Point to the existence of reapers and mention that init is the default
reaper.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2019-08-11 15:47:48 +00:00
Konstantin Belousov
cd6a6b772d wait(2): split long line by using .Fo/.Fa instead of .Ft.
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2019-08-11 15:44:36 +00:00
Brandon Bergren
bdccf0bbac Implement _umtx_op_err.S on powerpc / powerpc64.
As per r177853, we need to avoid using errno inside user mutex code, since
 signal handlers can interfere with it and mess up libthr internal state.

So, implement _umtx_op_err() instead, which makes a raw syscall and
returns the error value directly instead of using errno.

Approved by: jhibbits (mentor)
Differential Revision: https://reviews.freebsd.org/D20946
2019-08-09 20:16:38 +00:00
Conrad Meyer
4d3f1eafc9 Update to Zstandard 1.4.2
The full release notes for 1.4.1 (skipped) and 1.4.2 can be found on Github:

  https://github.com/facebook/zstd/releases/tag/v1.4.1
  https://github.com/facebook/zstd/releases/tag/v1.4.2

These are mostly minor updates; 1.4.1 purportedly brings something like 7%
faster decompression speed.

Relnotes:	yes
2019-08-08 16:54:22 +00:00
Justin Hibbits
e6bb926199 mips: Fix register target for SP setting in libproc
Copy-paste-o from r233042
Reviewed by:	imp
Differential Revision:	https://reviews.freebsd.org/D21188
2019-08-08 16:37:32 +00:00
Conrad Meyer
90f4bdbe91 import zstd 1.4.2 2019-08-08 15:37:56 +00:00
Conrad Meyer
fa94c7381a import zstd 1.4.1 2019-08-08 15:30:49 +00:00
Dimitry Andric
aa8d126847 Fix a possible segfault in wcsxfrm(3) and wcsxfrm_l(3).
If the length of the source wide character string, passed in via the
"size_t n" parameter, is set to zero, the function should only return
the required length for the destination wide character string.  In this
case, it should *not* attempt to write to the destination, so the "dst"
parameter is permitted to be NULL.

However, when the internally called _collate_wxfrm() function returns an
error, such as when using the "C" locale, as a fallback wcscpy(3) or
wcsncpy(3) are used.  But if the input length is zero, wcsncpy(3) will
be called with a length of -1!  If the "dst" parameter is NULL, this
will immediately result in a segfault, or if "dst" is a valid pointer,
it will most likely result in unexpectedly overwritten memory.

Fix this by explicitly checking for an input length greater than zero,
before calling wcsncpy(3).

Note that a similar situation does not occur in strxfrm(3), the plain
character version of this function, as it uses strlcpy(3) for the error
case.  The strlcpy(3) function does not write to the destination if the
input length is zero.

MFC after:	1 week
2019-08-07 20:13:43 +00:00
Mariusz Zaborski
9509775394 cap_filergs: limit size of the file name
The limit of the name in fileargs is twice the size of the MAXPATH.
The nvlist will not add an element with the longer name.
We can detect at this point that the path is too big, and simple return
the same error as open(2) would.

PR:		239700
Reported by:	markj
Tested by:	markj
MFC after:	2 weeks
2019-08-07 19:30:33 +00:00
Jeff Roberson
c168508655 Add two new kernel options to control memory locality on NUMA hardware.
- UMA_XDOMAIN enables an additional per-cpu bucket for freed memory that
   was freed on a different domain from where it was allocated.  This is
   only used for UMA_ZONE_NUMA (first-touch) zones.
 - UMA_FIRSTTOUCH sets the default UMA policy to be first-touch for all
   zones.  This tries to maintain locality for kernel memory.

Reviewed by:	gallatin, alc, kib
Tested by:	pho, gallatin
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20929
2019-08-06 21:50:34 +00:00
Mark Johnston
9a9b8e4693 Add an MLINK for daemonfd(3).
MFC after:	3 days
2019-08-01 18:51:18 +00:00
Mark Johnston
5220f24163 Fix formatting.
MFC after:	3 days
2019-08-01 18:51:06 +00:00
Konstantin Belousov
3638455c92 Avoid conflicts with libc symbols in libthr jump table.
In some corner cases of static linking and unexpected libraries order
on the linker command line, libc symbol might preempt the same libthr
symbol, in which case libthr jump table points back to libc causing
either infinite recursion or loop.  Handle all of such symbols by
using private libthr names for them, ensuring that the right pointers
are installed into the table.

In collaboration with: arichardson
PR:	239475
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D21088
2019-07-31 20:04:39 +00:00
Konstantin Belousov
0ab1bfc7b2 Avoid conflicts with libc symbols in libthr jump table.
In some corner cases of static linking and unexpected libraries order
on the linker command line, libc symbol might preempt the same libthr
symbol, in which case libthr jump table points back to libc causing
either infinite recursion or loop.  Handle all of such symbols by
using private libthr names for them, ensuring that the right pointers
are installed into the table.

In collaboration with: arichardson
PR:	239475
Tested by:	pho
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential revision:	https://reviews.freebsd.org/D21088
2019-07-31 19:27:20 +00:00
Mariusz Zaborski
4f80c85519 gnop: Introduce requests delay.
This allows to simulated disk that is responding slowly to the IO requests.

Reviewed by:	markj, bcr, pjd (previous version)
Differential Revision:	https://reviews.freebsd.org/D21052
2019-07-31 17:47:12 +00:00
Mariusz Zaborski
64b3a6b3b3 fileargs: fix formating in EXAMPLES
PR:		239523
Submitted by:	mikael.urankar@gmail.com
2019-07-30 08:53:03 +00:00
Mariusz Zaborski
8cf7941693 libcasper: remove reference to deprecated system.random 2019-07-29 21:26:26 +00:00
Mark Johnston
d7cadafed7 Remove a duplicate file listing in the libarchive tests.
MFC after:	3 days
2019-07-29 20:37:04 +00:00
Mark Johnston
076574744c Add mkostempsat(3).
This is a variant of mkostemps() which takes a directory descriptor and
returns a descriptor for a tempfile relative to that directory.  Unlike
the other mktemp functions, mkostempsat() can be used in capability
mode.

Reviewed by:	cem
Discussed with:	brooks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21031
2019-07-29 19:02:16 +00:00
Dimitry Andric
e91d723ad4 Merge libcxxrt master f96846efbfd508f66d91fcbbef5dd808947c7f6d.
Interesting fixes:
f96846e Fix std::size_t -> size_t to unbreak build against libc++ 6.0.0
6f4cfa2 Fix the uncaught exception count with rethrowing (PR 239265)
db54f53 Added C++14-specific operator delete (#47)

PR:		239265
MFC after:	3 days
2019-07-26 16:55:06 +00:00
Ed Maste
78aee653e9 libsysdecode: use the proper include directory
Reported by:	cy
Reviewed by:	lwhsu
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21068
2019-07-25 17:10:17 +00:00
Benjamin Kaduk
1f0a85545e Fix grammar nit in copy_file_range docs
Bytes are countable, so we have fewer of them, not less of them.
2019-07-25 15:43:15 +00:00
Rick Macklem
78756b9e6f Add libc support for the copy_file_range(2) syscall added by r350315.
copy_file_range.2 is a new man page (content change).

Reviewed by:	kib, asomers
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D20584
2019-07-25 06:05:49 +00:00
Alan Somers
ab8cabb1ca special-case getvfsbyname(3) for fusefs(5)
fusefs file systems may have a fsname subtype (set by mount_fusefs's "-o
subtype" option) that gets appended to the fsname as returned by statfs(2).
The subtype is set on a per-mount basis so it isn't part of the struct
vfsconf. Special-case getvfsbyname to match either the full "fusefs.foobar"
or short "fusefs" fsname.

This is a merge of r348007, r348054, and r350093 from projects/fuse2

Reviewed by:	kib
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21043
2019-07-25 03:55:05 +00:00
Mark Johnston
a76f78dc3f Remove cap_random(3).
Now that we have a way to obtain entropy in capability mode
(getrandom(2)), libcap_random is obsolete.  Remove it.

Bump __FreeBSD_version in case anything happens to use it, though I've
found no consumers.

Reviewed by:	delphij, emaste, oshogbo
Relnotes:	yes
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D21033
2019-07-24 22:50:43 +00:00
Ed Maste
9e92b0f015 libsysdecode: add explicit dependencies on recently changed headers
r349369 removed IP_MIN_MEMBERSHIPS and IPV6_MIN_MEMBERSHIPS, and r349893
removed TCP_RACK_SESS_CWV. libsysdecode lacked dependencies to trigger a
rebuild of tables.h.

Add explicit dependencies as a workaround to address these specific
cases; a holistic solution is still needed.

Sponsored by:	The FreeBSD Foundation
2019-07-24 21:06:19 +00:00
Brooks Davis
41fc64c259 Be consistent about temporary variable use in adjacent loops.
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
2019-07-22 18:27:17 +00:00
Mark Johnston
89e9665b8d Link fileargs_lstat.3.
Sponsored by:	The FreeBSD Foundation
2019-07-21 16:35:49 +00:00
John Baldwin
72a52ef8c4 expand_number(3) parses suffixes, not prefixes.
While here, tidy the opening sentence a bit.

MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20791
2019-07-20 16:03:54 +00:00
Dimitry Andric
87c8ef55c3 Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp
8.0.1 final release r366581.  The only functional change is a fix for a
mismerge of upstream r360816, which properly restores the r2 register
when unwinding on PowerPC64 (See https://reviews.freebsd.org/D20337).

Relnotes:	yes
PR:		236062
MFC after:	3 days
X-MFC-With:	r349004
2019-07-20 15:26:21 +00:00
Dimitry Andric
13847ea563 Vendor import of clang 8.0.1 release r366581:
https://llvm.org/svn/llvm-project/cfe/tags/RELEASE_801/final@366581
2019-07-20 14:44:17 +00:00
Brooks Davis
cba2a593da Avoid copying too much from the input string.
This avoids reading past the end of the static strings.  On a system
with bounds checking these tests fault.

Reviewed by:	asomers
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D21004
2019-07-19 23:58:30 +00:00
Brooks Davis
0ccd9d15a8 Remove an unneeded temporary variable in two functions.
There is no need to convert an intptr_t to a long just to cast it to a
(void *).

Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
2019-07-19 23:10:43 +00:00
Brooks Davis
b16d667545 Use the __DECONST macro rather than hand rolling it.
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
2019-07-19 22:54:09 +00:00
Emmanuel Vadot
be6a4fc664 pkgbase: Add a FreeBSD-dpv package
Move the dpv related files from FreeBSD-runtime to a new package named
FreeBSD-dpv
The only consumer is bsdinstall which is already in it's own package.

Reviewed by:	bapt, gjb
Differential Revision:	https://reviews.freebsd.org/D20960
2019-07-19 15:10:53 +00:00
Brooks Davis
f95dfdbe69 Include a mode when creating files with openat().
Reviewed by:	asomers
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D20989
2019-07-18 21:37:50 +00:00
Brooks Davis
ab9ef34e92 Document that setmode(3) is not thread safe.
In some circumstances, setmode(3) may call umask(2) twice to retrieve
the current mode and then restore it.  Between calls, the process will
have a umask of 0.

Reviewed by:	markj
Sponsored by:	DARPA, AFRL
Differential Revision:	https://reviews.freebsd.org/D20982
2019-07-18 21:33:55 +00:00
Brooks Davis
9fe7ee10d8 Remove redundent decleration of __elf_phdr_match_addr().
Obtained from:	CheriBSD
MFC after:	1 week
Sponsored by:	DARPA, AFRL
2019-07-17 23:46:47 +00:00
Alan Somers
822f5b1dad style changes to getvfsbyname
Reported by:	markj
Sponsored by:	The FreeBSD Foundation
2019-07-17 19:41:44 +00:00
Konstantin Belousov
345e740a1b bsearch.3: Improve the example.
Submitted by:	fernape
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D19902
2019-07-17 19:29:55 +00:00
Mark Johnston
dd8bacfd4e Add a regression test which transfers varying number of rights.
This exercises the PKG_MAX_SIZE limit mentioned in r350054.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-07-16 16:33:44 +00:00