Commit Graph

14119 Commits

Author SHA1 Message Date
Maxim Sobolev
5ec57af4b2 Fix several places where tool name has been hardcoded:
install -> ${INSTALL}
    mtree -> ${MTREE_CMD}
    services_mkdb -> ${SERVICES_MKDB_CMD}
    cap_mkdb -> ${CAP_MKDB_CMD}
    pwd_mkdb -> ${PWD_MKDB_CMD}
    kldxref -> ${KLDXREF_CMD}

If you do custom FreeBSD builds you may want to override those
in some cases.

Sponsored by:	Sippy Software, Inc.
2019-06-02 23:38:19 +00:00
Warner Losh
e9b659753c This should have been committed in r348511 with the awk update.
It was in my tree, the build worked, but I committed from contrib/one-true-awk
rather than the top level, so was omitted.
2019-06-02 16:44:50 +00:00
Kyle Evans
71259635f7 llvm-symbolizer: Move out of CLANG_EXTRAS, into CLANG
ASAN reports become a lot more useful with llvm-symbolizer in $PATH, and the
build is not much more time-consuming. The added benefit is that the
resulting reports will actually include symbol information; without, thread
trace information includes a bunch of addresses that immediately resolve to
an inline function in
^/contrib/compiler-rt/lib/sanitizer_common/sanitizer_common.h and take a
little more effort to examine.

Reviewed by:	emaste
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D20484
2019-06-02 04:04:21 +00:00
Kyle Evans
25385eb325 grep: Move lone 'r'grep case into the adjacent switch
This 'r' case should have belonged to the switch in the first place, but
I had somehow missed the switch when initially adding the rgrep link. The
zgrep script later came along and faithfully left this case standing alone,
so we will now go ahead and join it.

Nearby comment also adjusted a tad bit for wording and style.

Reported by:	Daniel Ebdrup
MFC after:	3 days
2019-06-02 02:38:44 +00:00
Brandon Bergren
03f92fe9e0 Add myself to committers-src.dot and calendar.freebsd
Approved by:	jhibbits (mentor)
2019-06-02 00:08:24 +00:00
Konstantin Belousov
a3e3f1b870 Minor tweaks to the layout.
Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
2019-05-30 16:02:40 +00:00
Konstantin Belousov
bbc08c6116 Remove "All rights reserved." from FF copyright.
Requested by:	rgrimes
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2019-05-29 14:26:35 +00:00
Konstantin Belousov
21db5fcc9d Add posixshmcontrol(1) page.
Reviewed by:	emaste
With input by:	danfe
Sponsored by:	The FreeBSD Foundation (kib)
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D20430
2019-05-29 13:51:18 +00:00
Konstantin Belousov
537aac3c09 Use int for the getopt() result.
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
2019-05-23 15:00:15 +00:00
Konstantin Belousov
5f4592e46f Add posixshmcontrol(1), an utility to manipulate posix shared memory segments.
See usage for the command line structure.  Man page will come shortly.

Reviewed by:	jilles, tmunro
Sponsored by:	The FreeBSD Foundation
MFC after:	1 week
Differential revision:	https://reviews.freebsd.org/D20258
2019-05-23 14:33:01 +00:00
Emmanuel Vadot
d3bb120822 pkgbase: Really move login.access
Messed up with git->svn r348102
2019-05-22 07:41:58 +00:00
Emmanuel Vadot
a8b94f3d79 pkgbase: Move login.access to usb.bin/login
Also remove the etc-examples target as we don't have any files
to handle here.

Reviewed by:	bapt
2019-05-22 07:23:03 +00:00
Martin Matuska
52c2bb7516 MFV r347989:
Sync libarchive with vendor.

Relevant vendor changes:
  Issue #795: XAR - do not try to add xattrs without an allocated name
  PR #812: non-recursive option for extract and list
  PR #958: support reading metadata from compressed files
  PR #999: add --exclude-vcs option to bsdtar
  Issue #1062: treat empty archives with a GNU volume header as valid
  PR #1074: Handle ZIP files with trailing 0s in the extra fields
            (Android APK archives)
  PR #1109: Ignore padding in Zip extra field data (Android APK archives)
  PR #1167: fix problems related to unreadable directories
  Issue #1168: fix handling of strtol() and strtoul()
  PR #1172: RAR5 - fix invalid window buffer read in E8E9 filter
  PR #1174: ZIP reader - fix of MSZIP signature parsing
  PR #1175: gzip filter - fix reading files larger than 4GB from memory
  PR #1177: gzip filter - fix memory leak with repeated header reads
  PR #1180: ZIP reader - add support for Info-ZIP Unicode Path Extra Field
  PR #1181: RAR5 - fix merge_block() recursion
            (OSS-Fuzz 12999, 13029, 13144, 13478, 13490)
  PR #1183: fix memory leak when decompressing ZIP files with LZMA
  PR #1184: fix RAR5 OSS-Fuzz issues 12466, 14490, 14491, 12817
    OSS-Fuzz 12466: RAR5 - fix buffer overflow when parsing huffman tables
    OSS-Fuzz 14490, 14491: RAR5 - fix bad shift-left operations
    OSS-Fuzz 12817: RAR5 - handle a case with truncated huffman tables
  PR #1186: RAR5 - fix invalid type used for dictionary size mask
            (OSS-Fuzz 14537)
  PR #1187: RAR5 - fix integer overflow (OSS-Fuzz 14555)
  PR #1190: RAR5 - RAR5 don't try to unpack entries marked as directories
            (OSS-Fuzz 14574)
  PR #1196: RAR5 - fix a potential SIGSEGV on 32-bit builds
  OSS-Fuzz 2582: RAR - fix use after free if there is an invalid entry
  OSS-Fuzz 14331: RAR5 - fix maximum owner name length
  OSS-Fuzz 13965: RAR5 - use unsigned int for volume number + range check

  Additional RAR5 reader changes:
    - support symlinks, hardlinks, file owner, file group, versioned files
    - change ARCHIVE_FORMAT_RAR_V5 to 0x100000
    - set correct mode for readonly directories
    - support readonly, hidden and system Windows file attributes

MFC after:	2 weeks
2019-05-20 12:57:39 +00:00
Mark Johnston
54a3a11421 Provide separate accounting for user-wired pages.
Historically we have not distinguished between kernel wirings and user
wirings for accounting purposes.  User wirings (via mlock(2)) were
subject to a global limit on the number of wired pages, so if large
swaths of physical memory were wired by the kernel, as happens with
the ZFS ARC among other things, the limit could be exceeded, causing
user wirings to fail.

The change adds a new counter, v_user_wire_count, which counts the
number of virtual pages wired by user processes via mlock(2) and
mlockall(2).  Only user-wired pages are subject to the system-wide
limit which helps provide some safety against deadlocks.  In
particular, while sources of kernel wirings typically support some
backpressure mechanism, there is no way to reclaim user-wired pages
shorting of killing the wiring process.  The limit is exported as
vm.max_user_wired, renamed from vm.max_wired, and changed from u_int
to u_long.

The choice to count virtual user-wired pages rather than physical
pages was done for simplicity.  There are mechanisms that can cause
user-wired mappings to be destroyed while maintaining a wiring of
the backing physical page; these make it difficult to accurately
track user wirings at the physical page layer.

The change also closes some holes which allowed user wirings to succeed
even when they would cause the system limit to be exceeded.  For
instance, mmap() may now fail with ENOMEM in a process that has called
mlockall(MCL_FUTURE) if the new mapping would cause the user wiring
limit to be exceeded.

Note that bhyve -S is subject to the user wiring limit, which defaults
to 1/3 of physical RAM.  Users that wish to exceed the limit must tune
vm.max_user_wired.

Reviewed by:	kib, ngie (mlock() test changes)
Tested by:	pho (earlier version)
MFC after:	45 days
Sponsored by:	Netflix
Differential Revision:	https://reviews.freebsd.org/D19908
2019-05-13 16:38:48 +00:00
Leandro Lupori
8edae83905 Fix build issue with clang 8.0.1
The algorithm header is needed to use std::remove_if
2019-05-10 17:05:40 +00:00
Xin LI
c9083b850a Move contrib/zlib to sys/contrib/zlib so that we can use it in kernel.
This is a prerequisite of unifying kernel zlib instances.

Submitted by:	Yoshihiro Ota <ota at j.email.ne.jp>
MFC after:	2 weeks
Differential Revision:	https://reviews.freebsd.org/D20191
2019-05-08 08:43:15 +00:00
Phil Shafer
5e203a9ddb Import libxo-1.0.4:
- Avoid NULL deref in xo_xml_leader_len (replacing local fix in rS345967)
- update copyright dates
- update test cases
- fix uncommitted version change

Submitted by:	phil
MFC after:	2 weeks
2019-05-06 20:20:21 +00:00
Edward Tomasz Napierala
98ce554a3d Unbreak the tests after r347002.
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
2019-05-01 19:35:45 +00:00
Edward Tomasz Napierala
f35f34b153 Add 'Birth' to 'stat -x' output. Current Linux stat(1)
also includes that.

Reviewed by:	cem
MFC after:	2 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20130
2019-05-01 18:56:22 +00:00
Ed Maste
1dffcf9f2d ar: shuffle symbol offsets during conversion for 32-bit ar archives
During processing we maintain symbol offsets in the 64-bit s_so array,
and when writing the archive convert to 32-bit if no offsets are greater
than 4GB.  However, this was somewhat inefficient as we looped over the
array twice: first, converting to big endian and second, writing each
32-bit value one at a time (and incorrectly so on big-endian platforms).

Instead, when writing a 32-bit archive shuffle convert symbol data to
big endian (as required by the ar format) and shuffle to the beginning
of the allocation at the same time.

Also correct emission of the symbol count on big endian platforms.

Further changes are planned, but this should fix powerpc64.

Reported by:	jhibbits, mlinimon
Reviewed by:	jhibbits, Gerald Aryeetey (earlier)
Tested by:	jhibbits
MFC after:	10 days
MFC with:	r346079
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D20007
2019-04-22 19:55:47 +00:00
Enji Cooper
1109b77451 Rework CXXSTD setting via r345708
This change allows the user to once again override the C++ standard, restoring
high-level pre-r345708 behavior.

This also unbreaks building lib/ofed/libibnetdisc/Makefile with a non-C++11
capable compiler, e.g., g++ 4.2.1, as the library supported being built with
older C++ standards.

MFC after:	2 weeks
MFC with:	r345708
Reviewed by:	emaste
Reported by:	jbeich
Differential Revision: https://reviews.freebsd.org/D19895 (as part of a larger change)
2019-04-22 18:38:54 +00:00
Enji Cooper
da5069e1f7 Update the spelling of my name
Previous spellings of my name (NGie, Ngie) weren't my legal spelling. Use Enji
instead for clarity.

While here, remove "All Rights Reserved" from copyrights I "own".

MFC after:	1 week
2019-04-22 17:52:46 +00:00
Ed Maste
687c09042f ar: use array notation to access s_so
This is somewhat more readable than pointer arithmetic.  Also remove an
unnecessary cast while here.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-04-22 17:29:26 +00:00
Ed Maste
e5228a95c6 ar: test for writing 64-bit format only if symbol count is nonzero
This is a minor simplification; if we do not have any symbols the empty
symbol table can be in 32-bit format.

MFC after:	1 week
Sponsored by:	The FreeBSD Foundation
2019-04-22 17:25:00 +00:00
Kyle Evans
7251c2d8bc dtc(1): Pull in fix for segfault-upon-error condition
Specifically, parse errors within a node would lead to a segfault due to
an unconditional dereference after emitting the error.

Obtained from:	https://github.com/davidchisnall/dtc/commit/e5ecf9319fd3f
MFC after:	3 days
2019-04-21 01:58:42 +00:00
Tom Jones
2946a9415c Add stat counter for ipv6 atomic fragments
Add a stat counter to track ipv6 atomic fragments. Atomic fragments can be
generated in response to invalid path MTU values, but are also a potential
attack vector and considered harmful (see RFC6946 and RFC8021).

While here add tracking of the atomic fragment counter to netstat and systat.

Reviewed by:    tuexen, jtl, bz
Approved by:    jtl (mentor), bz (mentor)
Event:  Aberdeen hackathon 2019
Differential Revision:  https://reviews.freebsd.org/D17511
2019-04-19 17:06:43 +00:00
Conrad Meyer
2b9c00cb6b Update to Zstandard 1.4.0
The full release notes can be found on Github:

  https://github.com/facebook/zstd/releases/tag/v1.4.0

Relnotes:	yes
2019-04-19 02:54:13 +00:00
Ed Maste
d76eef3430 cap_fileargs: chase r346315, update fileargs_init in consumers
Reported by:	ci.freebsd.org (8 times so far)
MFC after:	3 weeks
MFC with:	r346315
Sponsored by:	The FreeBSD Foundation
2019-04-17 16:18:14 +00:00
Bryan Drewery
814f2cd84c Fix 'jot -r 0 start end' to work.
This allows an endless stream of random data within the given bounds.
It already worked if a seed was provided as the 4th argument but not
if one was left out.

In collaboration with:	jhb
MFC after:		2 weeks
Relnotes:		yes
2019-04-16 00:41:22 +00:00
Rick Macklem
a16e0d4468 Fix printing of the line that starts with "LocalOpen...".
When "nfsstat -E -c" was done, the title line starting with "LocalOpen..."
was not being displayed. This was introduced by r328588.

MFC after:	2 weeks
2019-04-13 23:26:02 +00:00
Conrad Meyer
8fb93ac95d hexdump(1): Exit gracefully on format strings missing conversion
PR:		237263
Submitted by:	Bojan Petrovic <bojan_petrovic AT fastmail.fm>
2019-04-13 16:51:48 +00:00
Conrad Meyer
f20b149b45 sort(1): Memoize MD5 computation to reduce repeated computation
Experimentally, reduces sort -R time of a 148160 line corpus from about
3.15s to about 0.93s on this particular system.

There's probably room for improvement using some digest other than md5, but
I don't want to look at sort(1) anymore.  Some discussion of other possible
improvements in the Test Plan section of the Differential.

PR:		230792
Reviewed by:	jhb (earlier version)
Differential Revision:	https://reviews.freebsd.org/D19885
2019-04-13 04:42:17 +00:00
Li-Wen Hsu
e54f925b68 Suppress old gcc warning about null format string
This is workaround to make head build on gcc using architectures

Sponsored by:	The FreeBSD Foundation
MFC-with:	r346149
2019-04-12 18:35:14 +00:00
Baptiste Daroussin
7295610f5d Update mandoc to 1.14.5
MFC after:	2 weeks
2019-04-12 10:13:17 +00:00
Conrad Meyer
7a590a370a sort(1): Simplify and bound random seeding
Bound input file processing length to avoid the issue reported in [1].  For
simplicity, only allow regular file and character device inputs.  For
character devices, only allow /dev/random (and /dev/urandom symblink).

32 bytes of random is perfectly sufficient to seed MD5; we don't need any
more.  Users that want to use large files as seeds are encouraged to truncate
those files down to an appropriate input file via tools like sha256(1).

(This does not change the sort algorithm of sort -R.)

[1]: https://lists.freebsd.org/pipermail/freebsd-hackers/2018-August/053152.html

PR:		230792
Reported by:	Ali Abdallah <aliovx AT gmail.com>
Relnotes:	yes
2019-04-11 05:08:49 +00:00
Conrad Meyer
74504eefa1 sort(1): Whitespace and style cleanup
No functional change.

Sponsored by:	Dell EMC Isilon
2019-04-11 00:39:06 +00:00
Ed Maste
fabed6b2bd ar: implement support for /SYM64/ 64-bit archives
PR:		234454
Submitted by:	Gerald Aryeetey <aryeeteygerald_rogers.com>
Reviewed by:	imp (earlier)
MFC after:	3 weeks
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D18793
2019-04-10 13:13:34 +00:00
Mariusz Zaborski
120bdcd90b strings: disable Casper support while building native-xtools
Reported by:	Charlie Li
Tested by:	Charlie Li
2019-04-08 03:35:47 +00:00
Conrad Meyer
fff4eaebbf sort(1): randomcoll: Skip the memory allocation entirely
There's no reason to order based on strcmp of ASCII digests instead of
memcmp of the raw digests.

While here, remove collision fallback.  If you collide two MD5s, they're
probably the same string anyway.  If robustness against MD5 collisions is
desired, maybe we shouldn't use MD5.

None of the behavior of sort -R is specified by POSIX, so we're free to
implement this however we like.  E.g., using a 128-bit counter and block cipher
to generate unique indices for each line of input.

PR:		230792 (2/many)
Relnotes:	This will change the sort order for a given dataset with a
		given seed.  Other similarly breaking changes are planned.
Sponsored by:	Dell EMC Isilon
2019-04-04 23:32:27 +00:00
Conrad Meyer
e667e2a480 sort(1): randomcoll: Don't sort on ENOMEM
PR:		230792 (1/many)
Sponsored by:	Dell EMC Isilon
2019-04-04 20:27:13 +00:00
Mariusz Zaborski
6d395deba1 strings: capsicumize it
Reviewed by:	cem
Discussed with: emaste
Differential Revision:	https://reviews.freebsd.org/D18038
2019-04-04 16:32:27 +00:00
Phil Shafer
406a584d7e Import libxo-1.0.2
from 1.0.0:
    Add "continuation" flag, to allow multiple "xo" invocations in a single line of output (#58)
    Add --top-wrap to make top-level JSON wrappers
    Add --{open,close}-{list,instace} options
    Add xo_xml_leader(), to detect use of some bogus XML tags. It's still bad form, but it's a little safer now
    Avoid call to xo_write before xo_flush, since the latter calls the former
    Check return code from xo_flush_h properly (<0) (FreeBSD Bug 236935)
    For JSON output, avoid newline before a container's close brace (#62)
    Merge branch 'text_only' of https://github.com/zvr/libxo into zvr-text_only
    Use XO_USE_INT_RETURN_CODES, not USE_INT_RETURN_CODES
    add docs for --continuation
    add docs for --not-first
    call xo_state_set_flags before values and close containers; add XOIF_MADE_OUTPUT flag to track state; make proper empty JSON objects in xo_finish
    color_map code has to be #ifdef'd out, since the struct definition
    correct xo_flush_func_t (doesn't use xo_ssize_t)
    make depth change for --top-wrap only for JSON
    fix to handle --top-wrap in "xo" by being more consistent with handling trailing newlines
    fix to handle text-only version #64 (from zvr)
    fix xo_buf_has_room for round up to the next XO_BUFSIZ, not just add XO_BUFSIZ to the size (FreeBSD Bug 236937)
    update docs for new "xo" options
    update functions to use xo_ssize_t
    update test cases
from 1.0.1:
    Add EINTEGRITY to .pot files under test/gettext/ (fix from FreeBSD)
from 1.0.2:
    handle failure from xo_vnsprintf; don't add -1 to "rc"

PR:		236937, 236935
Submitted by:	phil
Reported by:	Alfonso S. Siciliano <alfix86@gmail.com>
MFC after:	2 weeks
2019-04-03 21:55:39 +00:00
Mateusz Guzik
0a17b9e03e rctl: fix sysctl kern.racct.enable use after r341182
The value was changed from int to bool. Since the new type
is smaller, the rest of the variable in the caller was left
unitialized.

PR:		236714
Reported by:	trasz
Diagnosed by:	markj
Sponsored by:	The FreeBSD Foundation
2019-04-03 20:37:14 +00:00
Dimitry Andric
c26e2e37aa Fix regression in top(1) after r344381, causing informational messages
to no longer be displayed.  This was because the reimplementation of
setup_buffer() did not copy the previous contents into any reallocated
buffer.

Reported by:	James Wright <james.wright@jigsawdezign.com>
PR:		236947
MFC after:	3 days
2019-04-02 18:01:54 +00:00
Michael Reifenberger
4551884596 systat -zarc to display disk activities like -vm
PR:		213310
Submitted by:	ota
MFH:		4 weeks
Differential Revision:	https://reviews.freebsd.org/D18726
2019-04-02 14:01:03 +00:00
Enji Cooper
e8067928ff Standardize -std=c++* as CXXSTD`
CXXSTD was added as the C++ analogue to CSTD.

CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.

This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.

As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.

Notes:

This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.

Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:

Before this commit:
```
CXXFLAGS+=	-std=c++14
```

After this commit:
```
CXXSTD=	c++14
```

Reviewed by:	asomers
Approved by:	emaste (mentor)
MFC after:	1 month
MFC with:	r345203, r345704, r345705
Relnotes:	yes
Tested with:	make tinderbox
Differential Revision:	https://reviews.freebsd.org/D19732
2019-03-29 18:45:27 +00:00
Enji Cooper
bdbf3440ce Revert r345706: the third time will be the charm
When a review is closed via Phabricator it updates the patch attached to the
review. I downloaded the raw patch from Phabricator, applied it, and repeated
my mistake from r345704 by accident mixing content from D19732 and D19738.

For my own personal sanity, I will try not to mix reviews like this in the
future.

MFC after:	1 month
MFC with:	r345706
Approved by:	emaste (mentor, implicit)
2019-03-29 18:43:46 +00:00
Enji Cooper
760b1a815b Standardize -std=c++* as CXXSTD`
CXXSTD was added as the C++ analogue to CSTD.

CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.

This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.

As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.

Notes:

This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.

Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:

Before this commit:
```
CXXFLAGS+=	-std=c++14
```

After this commit:
```
CXXSTD=	c++14
```

Reviewed by:	asomers
Approved by:	emaste (mentor)
MFC after:	1 month
MFC with:	r345203, r345704, r345705
Relnotes:	yes
Tested with:	make tinderbox
Differential Revision:	https://reviews.freebsd.org/D19732
2019-03-29 18:31:48 +00:00
Enji Cooper
752cabaa1c Revert r345704
I accidentally committed code from two reviews. I will reintroduce the code to
bsd.progs.mk as part of a separate commit from r345704.

Approved by:	emaste (mentor, implicit)
MFC after:	2 months
MFC with:	r345704
2019-03-29 18:16:33 +00:00
Enji Cooper
9a41926bfb CXXSTD is the C++ analogue to CSTD.
CXXSTD defaults to `-std=c++11` with supporting compilers; `-std=gnu++98`,
otherwise for older versions of g++.

This change standardizes the CXXSTD variable, originally added to
googletest.test.inc.mk as part of r345203.

As part of this effort, convert all `CXXFLAGS+= -std=*` calls to use `CXXSTD`.

Notes:

This value is not sanity checked in bsd.sys.mk, however, given the two
most used C++ compilers on FreeBSD (clang++ and g++) support both modes, it is
likely to work with both toolchains. This method will be refined in the future
to support more variants of C++, as not all versions of clang++ and g++ (for
instance) support C++14, C++17, etc.

Any manual appending of `-std=*` to `CXXFLAGS` should be replaced with CXXSTD.
Example:

Before this commit:
```
CXXFLAGS+=	-std=c++14
```

After this commit:
```
CXXSTD=	c++14
```

Reviewed by:	asomers
Approved by:	emaste (mentor)
MFC after:	1 month
Relnotes:	yes
Differential Revision:	https://reviews.freebsd.org/D19732
2019-03-29 18:13:44 +00:00