1 @node Contributors, Free Manuals, Platform, Top
2 @c %MENU% Who wrote what parts of the GNU C Library
3 @appendix Contributors to @theglibc{}
5 @Theglibc{} project would like to thank its many contributors.
6 Without them the project would not have been nearly as successful as
7 it has been. Any omissions in this list are accidental. Feel free to
8 file a bug in bugzilla if you have been left out or some of your
9 contributions are not listed. Please keep this list in alphabetical
15 Ryan S. Arnold for his improvements for Linux on PowerPC.
18 Miles Bader for writing the @code{argp} argument-parsing package, and the
19 @code{argz}/@code{envz} interfaces.
22 Jeff Bailey for his maintainership of the HPPA architecture.
25 Petr Baudis for bug fixes and testing.
28 Stephen R. van den Berg for contributing a highly-optimized
29 @code{strstr} function.
32 Ondrej Bilka for contributing optimized string routines for x64.
35 Eric Blake for adding O(n) implementations of @code{memmem},
36 @code{strstr} and @code{strcasestr}.
39 Philip Blundell for the ports to Linux/ARM
40 (@code{arm-@var{ANYTHING}-linuxaout}) and ARM standalone
41 (@code{arm-@var{ANYTHING}-none}), as well as for parts of the IPv6
45 Per Bothner for the implementation of the @code{libio} library which
46 is used to implement @code{stdio} functions.
49 Mark Brown for his direction as part of @theglibc{} steering
53 Thomas Bushnell for his contributions to Hurd.
56 Liubov Dmitrieva for optimzed string and math functions on x86-64 and
60 Ulrich Drepper for his many contributions in almost all parts of
61 @theglibc{}, including:
63 @item internationalization support, including the @code{locale} and
64 @code{localedef} utilities.
65 @item Linux i386/ELF support
66 @item the @code{hsearch} and @code{drand48} families of functions,
67 reentrant @samp{@dots{}@code{_r}} versions of the @code{random}
68 family; System V shared memory and IPC support code
69 @item several highly-optimized string functions for i@var{x}86
71 @item many math functions
72 @item the character conversion functions (@code{iconv})
73 @item the @code{ftw} and @code{nftw} functions
74 @item the floating-point printing function used by @code{printf} and friends
75 and the floating-point reading function used by @code{scanf},
76 @code{strtod} and friends
77 @item the @code{catgets} support and the entire suite of multi-byte
78 and wide-character support functions (@file{wctype.h}, @file{wchar.h}, etc.).
79 @item versioning of objects on the symbol level
83 Paul Eggert for the @code{mktime} function and for his direction as
84 part of @theglibc{} steering committee.
87 Tulio Magno Quites Machado Filho for adding a new class of installed
88 headers for low-level platform-specific functionality and one such for
92 Mike Frysinger for his maintaining of the IA64 architecture and for
93 testing and bug fixing.
96 Michael Glad for the DES encryption function @code{crypt} and related
100 Wolfram Gloger for contributing the memory allocation functions
101 functions @code{malloc}, @code{realloc} and @code{free} and related
105 Torbj@"orn Granlund for fast implementations of many of the string
106 functions (@code{memcpy}, @code{strlen}, etc.).
109 Michael J. Haertel for writing the merge sort function @code{qsort}
110 and malloc checking functions like @code{mcheck}.
113 Bruno Haible for his improvements to the @code{iconv} and locale
117 Richard Henderson for the port to Linux on Alpha
118 (@code{alpha-@var{anything}-linux}).
121 David Holsgrove for the port to Linux on MicroBlaze.
124 Daniel Jacobowitz for various fixes and enhancements.
127 Andreas Jaeger for the port to Linux on x86-64
128 (@code{x86_64-@var{anything}-linux} and his work on Linux for MIPS
129 (@code{mips-@var{anything}-linux}), implementing the @file{ldconfig}
130 program, providing a test suite for the math library and for his
131 direction as part of @theglibc{} steering committee.
134 Aurelien Jarno for various fixes.
137 Jakub Jelinek for implementing a number of checking functions and for
138 his direction as part of @theglibc{} steering committee.
141 Geoffrey Keating for the port to Linux on PowerPC
142 (@code{powerpc-@var{anything}-linux}).
145 Brendan Kehoe for contributing the port to the MIPS DECStation running
146 Ultrix 4 (@code{mips-dec-ultrix4}) and the port to the DEC Alpha
147 running OSF/1 (@code{alpha-dec-osf1}).
150 Mark Kettenis for implementing the @code{utmpx} interface and an utmp
151 daemon, and for a Hesiod NSS module.
154 Andi Kleen for implementing pthreads lock elision with TSX.
157 Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
158 architecture (@code{mips-@var{anything}-gnu}) and for his work on the
162 Andreas Krebbel for his work on Linux for s390 and s390x.
165 Thorsten Kukuk for providing an implementation for NIS (YP) and NIS+,
166 securelevel 0, 1 and 2 and for the implementation for a caching daemon
167 for NSS (@file{nscd}).
170 Jeff Law for various fixes.
173 Doug Lea for contributing the memory allocation functions
174 functions @code{malloc}, @code{realloc} and @code{free} and related
178 Hongjiu Lu for providing the support for a Linux 32-bit runtime
179 environment under x86-64 (x32), for porting to Linux on IA64, for
180 improved string functions, a framework for testing IFUNC
181 implementations, and many bug fixes.
184 Luis Machado for optimized functions on PowerPC.
187 David J. MacKenzie for his contribution to the @code{getopt}
188 function and writing the @file{tar.h} header.
191 Greg McGary for adding runtime support for bounds checking.
194 Roland McGrath for writing most of @theglibc{} originally, for his
195 work on the Hurd port, his direction as part of @theglibc{} steering
196 committee, and for many bug fixes and reviewing of contributions.
199 Jason Merrill for the port to the Sequent Symmetry running Dynix
200 version 3 (@code{i386-sequent-bsd}).
203 Chris Metcalf for the port to Linux/Tile
204 (@code{tilegx-@var{anything}-linux} and
205 @code{tilepro-@var{anything}-linux}).
208 David Miller for contributing the port to Linux/Sparc
209 (@code{sparc*-@var{anything}-linux}).
212 Alan Modra for his improvements for Linux on PowerPC.
215 David Mosberger-Tang for contributing the port to Linux/Alpha
216 (@code{alpha-@var{anything}-linux}).
219 Stephen Moshier for implementing some 128-bit long double format math
223 Stephen Munroe for his port to Linux on PowerPC64
224 (@code{powerpc64-@var{anything}-linux}) and for adding optimized
225 implementations for PowerPC.
228 Joseph S. Myers for numerous bug fixes for the libm functions, for
229 his maintainership of the ARM and MIPS architectures, improving
230 cross-compilation and cross-testing of @theglibc{}, expanded
231 coverage of conformtest, and merging the ports/ subdirectory
232 into the @glibcadj{} main repository.
235 Will Newton for contributing an optimized memcpy for ARM NEON and
239 Carlos O'Donell for his maintainership of the HPPA architecture and
240 maintaining @theglibc{} web pages.
243 Alexandre Oliva for adding TLS descriptors for LD and GD on x86 and
244 x86-64, for the am33 port, for completing the MIPS n64/n32/o32 multilib
245 port, and for various fixes.
248 Paul Pluzhnikov for various fixes.
251 Marek Polacek for various fixes.
254 Siddhesh Poyarekar for various fixes and an implementation of a
255 framework for performance benchmarking of functions.
258 Tom Quinn for contributing the startup code to support SunOS shared
259 libraries and the port to SGI machines running Irix 4
260 (@code{mips-sgi-irix4}).
263 Pravin Satpute for writing sorting rules for some Indian languages.
266 Douglas C. Schmidt for writing the quick sort function used as a
267 fallback by @code{qsort}.
270 Will Schmidt for optimized string functions on PowerPC.
273 Andreas Schwab for the port to Linux/m68k
274 (@code{m68k-@var{anything}-linux}) and for his direction as part of
275 @theglibc{} steering committee.
278 Martin Schwidefsky for porting to Linux on s390
279 (@code{s390-@var{anything}-linux}) and s390x
280 (@code{s390x-@var{anything}-linux}).
283 Thomas Schwinge for his contribution to Hurd and the SH architecture.
286 Carlos Eduardo Seo for optimized functions on PowerPC.
289 Marcus Shawcroft for contributing the AArch64 port.
292 Franz Sirl for various fixes.
295 Jes Sorensen for porting to Linux on IA64 (@code{ia64-@var{anything}-linux}).
298 Richard Stallman for his contribution to the @code{getopt} function.
301 Alfred M. Szmidt for various fixes.
304 Ian Lance Taylor for contributing the port to the MIPS DECStation
305 running Ultrix 4 (@code{mips-dec-ultrix4}).
308 Samuel Thibault for improving the Hurd port.
311 Tim Waugh for the implementation of the POSIX.2 @code{wordexp}
315 Eric Youngdale for implementing versioning of objects on the symbol level.
318 Adhemerval Zanella for optimized functions on PowerPC.
322 Some code in @theglibc{} comes from other projects and might be under
327 The timezone support code is derived from the public-domain timezone
328 package by Arthur David Olson and his many contributors.
331 Some of the support code for Mach is taken from Mach 3.0 by CMU;
332 the file if_ppp.h is also copyright by CMU, but under a different license;
333 see the file @file{LICENSES} for the text of the licenses.
336 The random number generation functions @code{random}, @code{srandom},
337 @code{setstate} and @code{initstate}, which are also the basis for the
338 @code{rand} and @code{srand} functions, were written by Earl T. Cohen
339 for the University of California at Berkeley and are copyrighted by the
340 Regents of the University of California. They have undergone minor
341 changes to fit into @theglibc{} and to fit the @w{ISO C} standard,
342 but the functional code is Berkeley's.@refill
345 The Internet-related code (most of the @file{inet} subdirectory) and
346 several other miscellaneous functions and header files have been
347 included from 4.4 BSD with little or no modification. The copying
348 permission notice for this code can be found in the file @file{LICENSES}
349 in the source distribution.
352 The @code{getaddrinfo} and @code{getnameinfo} functions and supporting
353 code were written by Craig Metz; see the file @file{LICENSES} for
354 details on their licensing.
357 The DNS resolver code is taken directly from BIND 4.9.5, which
358 includes copyrighted code from UC Berkeley and from Digital Equipment
359 Corporation. See the file @file{LICENSES} for the text of the DEC license.
362 The code to support Sun RPC is taken verbatim from Sun's
363 @w{@sc{rpcsrc-4.0}} distribution; see the file @file{LICENSES} for the
367 The math functions are taken from @code{fdlibm-5.1} by Sun
368 Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
369 Ulrich Drepper, Andreas Schwab, and Roland McGrath.
372 Many of the IEEE 64-bit double precision math functions
373 (in the @file{sysdeps/ieee754/dbl-64} subdirectory) come
374 from the IBM Accurate Mathematical Library, contributed by IBM.
377 Many of the IA64 math functions are taken from a collection of
378 ``Highly Optimized Mathematical Functions for Itanium'' that Intel
379 makes available under a free license; see the file @file{LICENSES} for