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7dbcd06e63
freebsd-dev/lib
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Ed Maste 7dbcd06e63 libc: optimize memmem two-way bad character shift 
first, the condition (mem && k < p) is redundant, because mem being
nonzero implies the needle is periodic with period exactly p, in which
case any byte that appears in the needle must appear in the last p
bytes of the needle, bounding the shift (k) by p.

second, the whole point of replacing the shift k by mem (=l-p) is to
prevent shifting by less than mem when discarding the memory on shift,
in which case linear time could not be guaranteed. but as written, the
check also replaced shifts greater than mem by mem, reducing the
benefit of the shift. there is no possible benefit to this reduction of
the shift; since mem is being cleared, the full shift is valid and
more optimal. so only replace the shift by mem when it would be less
than mem.

musl commits:
8f5a820d147da36bcdbddd201b35d293699dacd8
122d67f846cb0be2c9e1c3880db9eb9545bbe38c

Obtained from:	musl
MFC after:	2 weeks
2020-11-19 00:02:12 +00:00
..
atf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
clang Merge llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp 2020-10-12 21:35:29 +00:00
csu Add C startup code tests for PIE binaries. 2020-11-10 19:09:35 +00:00
flua flua: Add a libjail module 2020-10-24 17:08:59 +00:00
geom Drop "All rights reserved" from all my stuff. This includes 2020-10-28 13:46:11 +00:00
googletest Significantly reduce compile time for googletest internal tests 2020-10-28 11:54:04 +00:00
kyua Install expected kyua docs. 2020-03-26 17:34:17 +00:00
lib9p Add virtio-9p (aka VirtFS) filesystem sharing to bhyve. 2020-10-03 19:05:13 +00:00
lib80211 80211: non-functional changes 2020-10-07 21:56:58 +00:00
libalias libalias: retire cuseeme support 2020-05-16 02:29:10 +00:00
libarchive build: provide a default WARNS for all in-tree builds 2020-09-18 17:17:46 +00:00
libauditd libauditd: make it a PRIVATELIB 2020-04-19 02:20:39 +00:00
libbe libbe(3): install MLINKS for all of the functions provided 2020-10-18 23:58:40 +00:00
libbearssl Revert that! 2020-07-19 23:56:19 +00:00
libbegemot Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libblacklist Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libblocksruntime Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libbluetooth Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbsdstat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libbsm libbsm: fix some MLINKS 2020-04-19 02:18:40 +00:00
libbsnmp Add missing src.opts.mk include 2020-11-13 23:18:04 +00:00
libbz2 Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libc libc: optimize memmem two-way bad character shift 2020-11-19 00:02:12 +00:00
libc_nonshared
libc++ Only set WARNS if not defined 2020-09-11 13:28:37 +00:00
libc++experimental Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libcalendar Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcam Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
libcapsicum Add missing FreeBSD functions to -legacy when building on macOS/Linux 2020-08-25 13:23:31 +00:00
libcasper [libcasper] Update cap_dns API to not trigger unused variable warnings when disabled 2020-10-13 22:49:43 +00:00
libclang_rt Enable SUBDIR_PARELLEL in lib/libclang_rt 2020-10-12 10:42:33 +00:00
libcom_err Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcompat ftime appeared in 7th Edition Unix to replace gtime. 2018-10-28 02:58:15 +00:00
libcompiler_rt Follow-up r364753 by only using arm's stdatomic.c implementation, as it 2020-09-10 16:47:12 +00:00
libcrypt Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
libcuse Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libcxxrt Only set WARNS if not defined 2020-09-11 13:28:37 +00:00
libdevctl Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdevdctl libdevdctl: Force full match of "timestamp" field name 2020-06-23 16:29:59 +00:00
libdevinfo devinfo: add man page links 2020-08-04 21:09:36 +00:00
libdevstat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdl
libdpv Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libdwarf Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libedit Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libefivar libefivar: define MDE_CPU_RISCV64 2020-07-06 17:47:29 +00:00
libelf libelf: add compression header support 2020-10-23 16:35:23 +00:00
libelftc Update ELF Tool Chain to upstream r3769 2019-12-05 13:20:15 +00:00
libevent1 rename in-tree libevent v1 to libevent1 2020-05-28 22:05:50 +00:00
libexecinfo Move all sources from the llvm project into contrib/llvm-project. 2019-12-20 19:53:05 +00:00
libexpat Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libfetch Replace literal uses of /usr/local in C sources with _PATH_LOCALBASE 2020-10-27 11:29:11 +00:00
libfigpar Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgcc_eh After r364423, which ensures the callbacks that dl_iterate_phdr(3) 2020-08-25 20:07:11 +00:00
libgcc_s Remove the SYMVER build option. 2020-04-30 22:08:40 +00:00
libgeom Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgpio Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libgssapi libgssapi: modernize static string array use 2020-10-13 17:14:30 +00:00
libiconv_modules Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
libifconfig Move list_cloners to libifconfig 2020-10-21 05:27:25 +00:00
libipsec Refer to AES-CBC as "aes-cbc" rather than "rijndael-cbc" for IPsec. 2020-06-04 22:58:37 +00:00
libipt Update Intel Processor Trace decoder library. 2019-10-10 12:46:34 +00:00
libjail libjail: Handle an error from reallocarray() when trimming the buffer. 2020-01-07 21:44:27 +00:00
libkiconv pkgbase: Put a lot of binaries and lib in FreeBSD-runtime 2019-09-05 14:13:08 +00:00
libkvm Split out cwd/root/jail, cmask state from filedesc table 2020-11-17 21:14:13 +00:00
libldns Update Makefile.depend files 2019-12-11 17:37:53 +00:00
liblua Fix -Wundef warnings when building liblua 2020-08-25 13:30:34 +00:00
liblutok Add liblutok a lightweight C++ API for lua. 2020-03-23 18:26:23 +00:00
liblzma liblzma: Make liblzma use libmd implementation of SHA256. 2020-06-20 21:32:07 +00:00
libmagic Fix installation of magic file. 2020-06-17 15:57:59 +00:00
libmd Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
libmemstat malloc: move malloc_type_internal into malloc_type 2020-11-06 21:33:59 +00:00
libmilter Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmp Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libmt Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
libnetbsd Make timespecadd(3) and friends public 2018-07-30 15:46:40 +00:00
libnetgraph Fix SYNPOSIS section to point to the proper include directive. 2020-05-15 12:04:39 +00:00
libnetmap [libnetmap] Fix 32 bit compilation under gcc-6.4 2020-11-02 15:01:37 +00:00
libngatm Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libnv Fix libnv build post rename 2020-06-27 02:17:04 +00:00
libomp Update build glue for libomp. 2020-01-27 18:04:28 +00:00
libopenbsd Only set WARNS if not defined 2020-09-11 13:28:37 +00:00
libopencsd Update opencsd to 0.14.2 2020-06-17 10:42:20 +00:00
libopie Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libpam Don't explicitly specify c99 or gnu99 as the default is now gnu99. 2020-08-17 05:57:02 +00:00
libpathconv Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
libpcap MFV r353141 (by phillip): 2019-12-21 21:01:03 +00:00
libpe
libpjdlog pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
libpmc libpmc: add support for POWER8/9 PMCs 2020-11-05 16:41:28 +00:00
libpmcstat pmcstat: fix PPC kernel symbol resolution 2020-11-05 16:47:23 +00:00
libproc Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
libprocstat Split out cwd/root/jail, cmask state from filedesc table 2020-11-17 21:14:13 +00:00
libradius Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
libregex libregex: disable some of the unimplemented test cases for now 2020-08-04 02:16:43 +00:00
librpcsec_gss Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
librpcsvc Update Makefile.depend files 2019-12-11 17:37:53 +00:00
librss Update Makefile.depend files 2019-12-11 17:37:53 +00:00
librt pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
librtld_db librtld_db: Handle anonymous mappings below the first file mapping. 2020-06-05 18:44:14 +00:00
libsbuf Do a sweep and remove most WARNS=6 settings 2020-10-01 01:10:51 +00:00
libsdp Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsecureboot veloader: insist on verifying .4th .lua etc 2020-08-21 00:27:06 +00:00
libsm Merge sendmail 8.16.1 to HEAD: See contrib/sendmail/RELEASE_NOTES for details 2020-07-15 18:28:54 +00:00
libsmb Move nsmb.conf to lib/libsmb/ 2018-09-20 09:31:27 +00:00
libsmdb Merge sendmail 8.16.1 to HEAD: See contrib/sendmail/RELEASE_NOTES for details 2020-07-15 18:28:54 +00:00
libsmutil
libsqlite3 [PowerPC64LE] Pass our byte order to the sqlite3 build. 2020-09-23 02:17:44 +00:00
libssp libssp: don't compile with -fstack-protector* 2020-03-14 15:15:27 +00:00
libssp_nonshared Provide libssp based on libc 2020-01-04 20:19:25 +00:00
libstats Make use of the stats(3) framework in the TCP stack. 2019-12-02 20:58:04 +00:00
libstdbuf
libstdthreads Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libsysdecode Make linux_errtbl[] static. 2020-11-03 19:12:33 +00:00
libtacplus libtacplus: Remove bogus srandomdev+random 2019-12-13 05:11:34 +00:00
libtelnet
libthr _umtx_op: fix a compat32 bug in UMTX_OP_NWAKE_PRIVATE 2020-11-17 03:34:01 +00:00
libthread_db Remove libthr, csu, libthread_db and testfloat sparc64 specific directories. 2020-02-27 04:44:58 +00:00
libucl Only set WARNS if not defined 2020-09-11 13:28:37 +00:00
libufs Update the libufs cgget() and cgput() interfaces to have a similar 2020-09-19 22:48:30 +00:00
libugidfw Deduplicate fsid comparisons 2020-05-21 01:55:35 +00:00
libulog Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libunbound MFV r361322: 2020-05-21 21:00:46 +00:00
libusb Fix a few mandoc issues 2020-10-09 19:12:44 +00:00
libusbhid USB HID descriptors may push/pop the current state to allow 2020-06-05 07:57:16 +00:00
libutil Add function getlocalbase() to libutil. 2020-11-18 19:44:30 +00:00
libveriexec Do not claim libbearssl et al are INTERNALLIB 2020-04-01 05:45:12 +00:00
libvgl Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libvmmapi vmm(4), bhyve(8): Expose kernel-emulated special devices to userspace 2020-05-15 15:54:22 +00:00
libwrap Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libxo build: provide a default WARNS for all in-tree builds 2020-09-18 17:17:46 +00:00
liby
libypclnt Update Makefile.depend files 2019-12-11 17:37:53 +00:00
libz Generate zlib.pc from source. 2020-05-12 01:47:33 +00:00
libzstd pkgbase: Move libprivatezstd from utilities to runtime 2020-11-12 14:04:08 +00:00
msun msun tests: use standard floating-point exception flags on lrint and fenv tests 2020-11-18 19:23:30 +00:00
ncurses Pass the full CFLAGS to cpp for MKlib_gen.sh. 2020-08-03 17:53:15 +00:00
ofed build: provide a default WARNS for all in-tree builds 2020-09-18 17:17:46 +00:00
tests
Makefile flua: Add a libjail module 2020-10-24 17:08:59 +00:00
Makefile.inc build: provide a default WARNS for all in-tree builds 2020-09-18 17:17:46 +00:00