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5a38af1fb8
freebsd-nq/lib
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Edward Tomasz Napierala 5a38af1fb8 Introduce <sys/qmath.h>, a fixed-point math library from Netflix. 
This makes it possible to perform mathematical operations
on
fractional values without using floating point. It operates on Q
numbers, which are integer-sized, opaque structures initialized
to hold a chosen number of integer and fractional
bits.


For a general description of the Q number system, see the "Fixed Point
Representation & Fractional Math" whitepaper[1]; for the actual
API see the qmath(3) man page.

This is one of dependencies for the upcoming stats(3) framework[2]
that will be applied to the TCP stack in a later commit.

1. https://www.superkits.net/whitepapers/Fixed%20Point%20Representation%20&%20Fractional%20Math.pdf
2. https://reviews.freebsd.org/D20477

Reviewed by:	bcr (man pages, earlier version), sef (earlier version)
Discussed with:	cem, dteske, imp, lstewart
Sponsored By:	Klara Inc, Netflix
Obtained from:	Netflix
Differential Revision:	https://reviews.freebsd.org/D20116
2019-08-27 11:46:22 +00:00
..
atf libatf: remove workaround not required after atf >= 0.18 update 2019-06-01 18:26:07 +00:00
clang Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 2019-07-20 15:26:21 +00:00
csu Support reading in .depend files. 2019-06-15 17:08:32 +00:00
geom gnop: Introduce requests delay. 2019-07-31 17:47:12 +00:00
googletest Import proof-of-concept for handling GTEST_SKIP() in Environment::SetUp 2019-04-01 18:07:48 +00:00
lib80211 Move regdomain.xml to lib/lib80211/ 2018-09-19 09:29:06 +00:00
libalias Move libalias.conf to lib/libalias/libalias/ 2018-09-18 20:54:37 +00:00
libarchive Remove a duplicate file listing in the libarchive tests. 2019-07-29 20:37:04 +00:00
libauditd Disable -Wcast-align in libbsm and libauditd 2018-07-28 20:04:39 +00:00
libbe libbe(3): restructure be_mount, skip canmount check for BE dataset 2019-06-25 18:47:40 +00:00
libbearssl Add libbearssl 2019-02-26 05:59:22 +00:00
libbegemot DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libblacklist DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libblocksruntime DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libbluetooth Move all bluetooth related config files out of etc 2018-08-21 19:28:53 +00:00
libbsdstat lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libbsm Disable -Wcast-align in libbsm and libauditd 2018-07-28 20:04:39 +00:00
libbsnmp Add IPv6 transport for bsnmp. 2019-04-02 12:50:01 +00:00
libbz2 DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libc lib.libc.gen.getmntinfo_test.getmntinfo_test is unstable since 8/20, skip it 2019-08-23 05:25:21 +00:00
libc_nonshared lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libc++ Rework CXXSTD setting via r345708 2019-04-22 18:38:54 +00:00
libc++experimental Rework CXXSTD setting via r345708 2019-04-22 18:38:54 +00:00
libc++fs Rework CXXSTD setting via r345708 2019-04-22 18:38:54 +00:00
libcalendar lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libcam Update the spelling of my name (continuation of r346571) 2019-04-22 18:05:33 +00:00
libcapsicum List caph_limit_stream() in the synopsis. 2019-01-21 20:56:29 +00:00
libcasper cap_filergs: limit size of the file name 2019-08-07 19:30:33 +00:00
libclang_rt Upgrade our copies of clang, llvm, lld, lldb, compiler-rt, libc++, 2019-06-12 21:10:37 +00:00
libcom_err DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libcompat ftime appeared in 7th Edition Unix to replace gtime. 2018-10-28 02:58:15 +00:00
libcompiler_rt compiler-rt: enable __bswapsi2/__bswapdi2 for RISC-V 2019-08-14 18:41:28 +00:00
libcrypt Chase r261913: hardcoded default crypt(3) algorithm is SHA-512 when DES 2019-05-27 06:37:23 +00:00
libcuse Implement flag for telling cuse(3) clients if the peer is running in 32-bit 2019-04-18 19:04:07 +00:00
libcxxrt Merge libcxxrt master f96846efbfd508f66d91fcbbef5dd808947c7f6d. 2019-07-26 16:55:06 +00:00
libdevctl Implement devctl(8) command 'reset', using DEV_RESET /dev/devctl2 ioctl. 2019-04-05 19:32:26 +00:00
libdevdctl zfsd: Allow zfsd to work on any type of GEOM provider 2018-02-14 23:52:39 +00:00
libdevinfo Update to device enumeration protocol 2 2018-05-31 02:58:03 +00:00
libdevstat lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libdl Add libdl to clibs package 2018-03-29 19:43:29 +00:00
libdpv pkgbase: Add a FreeBSD-dpv package 2019-07-19 15:10:53 +00:00
libdwarf DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libedit libedit: Avoid out of bounds read in 'bind' command 2019-01-16 21:59:18 +00:00
libefivar Regularize the Netflix copyright 2019-02-04 21:28:25 +00:00
libelf Allow bootstrapping elftoolchain on MacOS and Linux 2019-07-01 11:52:54 +00:00
libelftc libelftc: Add MLINKS. 2019-05-30 19:18:01 +00:00
libevent DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libexecinfo DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libexpat Update expat to 2.2.6 2018-11-04 16:08:59 +00:00
libfetch [libfetch] Fix compilation with WITHOUT_CRYPT. 2019-05-03 06:06:39 +00:00
libfigpar pkgbase: Add a FreeBSD-dpv package 2019-07-19 15:10:53 +00:00
libgcc_eh Rework CXXSTD setting via r345708 2019-04-22 18:38:54 +00:00
libgcc_s Fix build by escaping a line break. 2018-01-31 21:41:42 +00:00
libgeom lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libgpio DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libgssapi Use the __DECONST macro rather than hand rolling it. 2019-07-19 22:54:09 +00:00
libiconv_modules libiconv: correct undefined behavior. 2018-07-08 23:22:04 +00:00
libifconfig Make libifconfig INTERNALLIB 2019-02-25 18:22:20 +00:00
libipsec Update pfkey_open() function to set socket's write buffer size to 2018-03-11 19:26:34 +00:00
libipt Add new shared library -- libipt. 2018-03-21 14:37:04 +00:00
libjail `libjail/jail.c' includes both <sys/param.h> and <sys/types.h> 2019-06-22 15:39:34 +00:00
libkiconv lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libkvm Chase r350037. 2019-07-16 16:02:20 +00:00
libldns Add libssl to libldns for DANE. 2018-10-12 05:27:58 +00:00
liblzma Enable use of Capsicum sandbox when there is only one 2019-01-09 05:30:46 +00:00
libmagic Fix .depend files to work for build tools. 2019-06-15 17:08:13 +00:00
libmd sha.3: clarify admonition against use in NEW signature schemes 2019-06-05 20:18:08 +00:00
libmemstat Add two new kernel options to control memory locality on NUMA hardware. 2019-08-06 21:50:34 +00:00
libmilter DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libmp Make libmp(3) buildable. 2018-09-19 07:05:31 +00:00
libmt Add IBM TS1160 density codes to libmt and the mt(1) man page. 2019-03-04 14:30:37 +00:00
libnetbsd Make timespecadd(3) and friends public 2018-07-30 15:46:40 +00:00
libnetgraph Atomically update the global gMsgId in libnetgraph. 2019-05-10 16:43:47 +00:00
libngatm DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libnv Add a regression test which transfers varying number of rights. 2019-07-16 16:33:44 +00:00
libomp To avoid unnecessarily modifying ports, add a -lgomp symlink, since GCC 2019-05-19 20:13:55 +00:00
libopenbsd Allow bootstrapping libopenbsd on Linux 2018-12-05 10:58:02 +00:00
libopencsd Add new shared library -- libopencsd. 2018-04-04 14:31:56 +00:00
libopie Move opieaccess to lib/libopie/ 2018-09-20 09:26:10 +00:00
libpam Changes to the expose_password functionality: 2019-06-30 14:46:15 +00:00
libpathconv Disconnect libpathconv tests since they require external perl and do not work with kyua. 2017-10-31 19:52:30 +00:00
libpcap Remove redundant header file from source list in libpcap. 2018-05-30 08:24:57 +00:00
libpe
libpjdlog Revert 335888 ("Ensure va_list is declared by including stdarg.h.") 2018-07-03 15:48:34 +00:00
libpmc pmc: restore "unhalted-cycles" alias 2019-08-15 21:51:11 +00:00
libpmcstat pmc(3)/hwpmc(4): update supported Intel processors to rely fully on the 2018-05-26 19:29:19 +00:00
libproc mips: hide regnum definitions behind _KERNEL/_WANT_MIPS_REGNUM 2019-08-22 21:43:21 +00:00
libprocstat Bump SPECNAMELEN to MAXNAMLEN. 2019-01-27 00:46:06 +00:00
libradius Make libradius(3) buildable. 2018-09-19 07:06:20 +00:00
libregex libregex: Mark gnuext test as an expected fail 2018-01-29 14:00:33 +00:00
librpcsec_gss lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
librpcsvc spdx: initial adoption of licensing ID tags. 2017-11-18 14:26:50 +00:00
librss DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
librt lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
librtld_db lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libsbuf Fix libsbuf sbuf_printf_drain symbol version 2019-05-07 21:15:11 +00:00
libsdp Add support for Audio Sink and Audio Source profiles to sdpd(8). 2019-01-30 09:44:54 +00:00
libsecureboot libsecureboot: avoid recusion in ve_trust_init 2019-07-11 22:06:59 +00:00
libsm
libsmb Move nsmb.conf to lib/libsmb/ 2018-09-20 09:31:27 +00:00
libsmdb
libsmutil
libsqlite3 Disable FTS3, FTS4, and RTREE in bundled and private sqlite3. 2019-01-12 17:56:23 +00:00
libstdbuf lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libstdthreads lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libsysdecode Rework r339635 to fix .depend.tables.h handling. 2019-08-16 22:34:10 +00:00
libtacplus lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libtelnet Remove redundant include directories which expand to a noop, 2017-07-31 19:07:45 +00:00
libthr Fix _pthread_cancel_enter() and _pthread_cancel_leave() jmptable entries. 2019-08-21 19:53:50 +00:00
libthread_db mips: hide regnum definitions behind _KERNEL/_WANT_MIPS_REGNUM 2019-08-22 21:43:21 +00:00
libucl DIRDEPS_BUILD: Update dependencies. 2017-10-31 00:07:04 +00:00
libufs Separate kernel crc32() implementation to its own header (gsb_crc32.h) and 2019-06-17 19:49:08 +00:00
libugidfw Allow jail names (not just IDs) to be specified for: cpuset(1), ipfw(8), 2018-07-03 23:47:20 +00:00
libulog lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libunbound Update Makefile for 1.8.0, apologies for the breakage. 2018-10-10 08:19:11 +00:00
libusb Only call libusb_hotplug_enumerate() once from libusb_hotplug_register_callback(). 2019-06-26 12:04:54 +00:00
libusbhid lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libutil expand_number(3) parses suffixes, not prefixes. 2019-07-20 16:03:54 +00:00
libveriexec This library allows for user space applications to check file descriptors 2018-06-20 00:55:18 +00:00
libvgl Fix copying planar bitmaps when the horizontal start and end are both not 2019-05-03 13:06:46 +00:00
libvmmapi bhyve: Use MAP_GUARD when mapping guest memory ranges. 2018-09-06 20:29:40 +00:00
libwrap Move hosts.allow to lib/libwrap/ 2018-09-22 13:17:30 +00:00
libxo Import libxo-1.0.4: 2019-05-06 20:20:21 +00:00
liby liby: rewrite yyerror.h 2018-06-17 18:05:27 +00:00
libypclnt lib: further adoption of SPDX licensing ID tags. 2017-11-26 02:00:33 +00:00
libz Move contrib/zlib to sys/contrib/zlib so that we can use it in kernel. 2019-05-08 08:43:15 +00:00
libzstd Update to Zstandard 1.4.2 2019-08-08 16:54:22 +00:00
msun Introduce <sys/qmath.h>, a fixed-point math library from Netflix. 2019-08-27 11:46:22 +00:00
ncurses Fix .depend files to work for build tools. 2019-06-15 17:08:13 +00:00
ofed Rework CXXSTD setting via r345708 2019-04-22 18:38:54 +00:00
tests
Makefile import zstd 1.4.1 2019-08-08 15:30:49 +00:00
Makefile.inc