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 and his direction
16 as FSF Project Steward for @theglibc{}.
19 Miles Bader for writing the @code{argp} argument-parsing package, and the
20 @code{argz}/@code{envz} interfaces.
23 Jeff Bailey for his maintainership of the HPPA architecture.
26 Petr Baudis for bug fixes and testing.
29 Stephen R. van den Berg for contributing a highly-optimized
30 @code{strstr} function.
33 Ondrej Bilka for contributing optimized string routines for x64 and various
37 Eric Blake for adding O(n) implementations of @code{memmem},
38 @code{strstr} and @code{strcasestr}.
41 Philip Blundell for the ports to Linux/ARM
42 (@code{arm-@var{ANYTHING}-linuxaout}) and ARM standalone
43 (@code{arm-@var{ANYTHING}-none}), as well as for parts of the IPv6
47 Per Bothner for the implementation of the @code{libio} library which
48 is used to implement @code{stdio} functions.
51 Mark Brown for his direction as part of @theglibc{} steering
55 Thomas Bushnell for his contributions to Hurd.
58 Wilco Dijkstra for various fixes.
61 Liubov Dmitrieva for optimzed string and math functions on x86-64 and
65 Ulrich Drepper for his many contributions in almost all parts of
66 @theglibc{}, including:
68 @item internationalization support, including the @code{locale} and
69 @code{localedef} utilities.
70 @item Linux i386/ELF support
71 @item the @code{hsearch} and @code{drand48} families of functions,
72 reentrant @samp{@dots{}@code{_r}} versions of the @code{random}
73 family; System V shared memory and IPC support code
74 @item several highly-optimized string functions for i@var{x}86
76 @item many math functions
77 @item the character conversion functions (@code{iconv})
78 @item the @code{ftw} and @code{nftw} functions
79 @item the floating-point printing function used by @code{printf} and friends
80 and the floating-point reading function used by @code{scanf},
81 @code{strtod} and friends
82 @item the @code{catgets} support and the entire suite of multi-byte
83 and wide-character support functions (@file{wctype.h}, @file{wchar.h}, etc.).
84 @item versioning of objects on the symbol level
88 Paul Eggert for the @code{mktime} function and for his direction as
89 part of @theglibc{} steering committee.
92 Steve Ellcey for various fixes.
95 Tulio Magno Quites Machado Filho for adding a new class of installed
96 headers for low-level platform-specific functionality and one such for
100 Mike Frysinger for his maintaining of the IA64 architecture and for
101 testing and bug fixing.
104 Michael Glad for the DES encryption function @code{crypt} and related
108 Wolfram Gloger for contributing the memory allocation functions
109 functions @code{malloc}, @code{realloc} and @code{free} and related
113 Torbj@"orn Granlund for fast implementations of many of the string
114 functions (@code{memcpy}, @code{strlen}, etc.).
117 Michael J. Haertel for writing the merge sort function @code{qsort}
118 and malloc checking functions like @code{mcheck}.
121 Bruno Haible for his improvements to the @code{iconv} and locale
125 Richard Henderson for the port to Linux on Alpha
126 (@code{alpha-@var{anything}-linux}).
129 David Holsgrove for the port to Linux on MicroBlaze.
132 Daniel Jacobowitz for various fixes and enhancements.
135 Andreas Jaeger for the port to Linux on x86-64
136 (@code{x86_64-@var{anything}-linux} and his work on Linux for MIPS
137 (@code{mips-@var{anything}-linux}), implementing the @file{ldconfig}
138 program, providing a test suite for the math library and for his
139 direction as part of @theglibc{} steering committee.
142 Aurelien Jarno for various fixes.
145 Jakub Jelinek for implementing a number of checking functions and for
146 his direction as part of @theglibc{} steering committee.
149 Geoffrey Keating for the port to Linux on PowerPC
150 (@code{powerpc-@var{anything}-linux}).
153 Brendan Kehoe for contributing the port to the MIPS DECStation running
154 Ultrix 4 (@code{mips-dec-ultrix4}) and the port to the DEC Alpha
155 running OSF/1 (@code{alpha-dec-osf1}).
158 Mark Kettenis for implementing the @code{utmpx} interface and an utmp
159 daemon, and for a Hesiod NSS module.
162 Andi Kleen for implementing pthreads lock elision with TSX.
165 Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
166 architecture (@code{mips-@var{anything}-gnu}) and for his work on the
170 Andreas Krebbel for his work on Linux for s390 and s390x.
173 Thorsten Kukuk for providing an implementation for NIS (YP) and NIS+,
174 securelevel 0, 1 and 2 and for the implementation for a caching daemon
175 for NSS (@file{nscd}).
178 Jeff Law for various fixes.
181 Doug Lea for contributing the memory allocation functions
182 functions @code{malloc}, @code{realloc} and @code{free} and related
186 Chris Leonard for various fixes and enhancements to localedata.
189 Stefan Liebler for various fixes.
192 Hongjiu Lu for providing the support for a Linux 32-bit runtime
193 environment under x86-64 (x32), for porting to Linux on IA64, for
194 improved string functions, a framework for testing IFUNC
195 implementations, and many bug fixes.
198 Luis Machado for optimized functions on PowerPC.
201 David J. MacKenzie for his contribution to the @code{getopt}
202 function and writing the @file{tar.h} header.
205 Greg McGary for adding runtime support for bounds checking.
208 Roland McGrath for writing most of @theglibc{} originally, for his
209 work on the Hurd port, his direction as part of @theglibc{} steering
210 committee and as FSF Project Steward for @theglibc{}, and for many bug
211 fixes and reviewing of contributions.
214 Allan McRae for various fixes.
217 Jason Merrill for the port to the Sequent Symmetry running Dynix
218 version 3 (@code{i386-sequent-bsd}).
221 Chris Metcalf for the port to Linux/Tile
222 (@code{tilegx-@var{anything}-linux} and
223 @code{tilepro-@var{anything}-linux}).
226 David Miller for contributing the port to Linux/Sparc
227 (@code{sparc*-@var{anything}-linux}).
230 Alan Modra for his improvements for Linux on PowerPC.
233 David Mosberger-Tang for contributing the port to Linux/Alpha
234 (@code{alpha-@var{anything}-linux}).
237 Stephen Moshier for implementing some 128-bit long double format math
241 Stephen Munroe for his port to Linux on PowerPC64
242 (@code{powerpc64-@var{anything}-linux}) and for adding optimized
243 implementations for PowerPC.
246 Joseph S. Myers for numerous bug fixes for the libm functions, for
247 his maintainership of the ARM and MIPS architectures, improving
248 cross-compilation and cross-testing of @theglibc{}, expanded
249 coverage of conformtest, merging the ports/ subdirectory
250 into the @glibcadj{} main repository and his direction as FSF Project
251 Steward for @theglibc{}.
254 Will Newton for contributing some optimized string functions and pointer
255 encryption support for ARM and various fixes.
258 Carlos O'Donell for his maintainership of the HPPA architecture, for
259 maintaining @theglibc{} web pages and wiki, for his direction as FSF
260 Project Steward for @theglibc{} and various bug fixes.
263 Alexandre Oliva for adding TLS descriptors for LD and GD on x86 and
264 x86-64, for the am33 port, for completing the MIPS n64/n32/o32 multilib
265 port, for thread-safety, async-signal safety and async-cancellation
266 safety documentation in the manual, for his direction as FSF Project
267 Maintainer and for various fixes.
270 Paul Pluzhnikov for various fixes.
273 Marek Polacek for various fixes.
276 Siddhesh Poyarekar for various fixes and an implementation of a
277 framework for performance benchmarking of functions.
280 Tom Quinn for contributing the startup code to support SunOS shared
281 libraries and the port to SGI machines running Irix 4
282 (@code{mips-sgi-irix4}).
285 Pravin Satpute for writing sorting rules for some Indian languages.
288 Douglas C. Schmidt for writing the quick sort function used as a
289 fallback by @code{qsort}.
292 Will Schmidt for optimized string functions on PowerPC.
295 Andreas Schwab for the port to Linux/m68k
296 (@code{m68k-@var{anything}-linux}) and for his direction as part of
297 @theglibc{} steering committee.
300 Martin Schwidefsky for porting to Linux on s390
301 (@code{s390-@var{anything}-linux}) and s390x
302 (@code{s390x-@var{anything}-linux}).
305 Thomas Schwinge for his contribution to Hurd and the SH architecture.
308 Carlos Eduardo Seo for optimized functions on PowerPC.
311 Marcus Shawcroft for contributing the AArch64 port.
314 Franz Sirl for various fixes.
317 Jes Sorensen for porting to Linux on IA64 (@code{ia64-@var{anything}-linux}).
320 Richard Stallman for his contribution to the @code{getopt} function.
323 Alfred M. Szmidt for various fixes.
326 Ian Lance Taylor for contributing the port to the MIPS DECStation
327 running Ultrix 4 (@code{mips-dec-ultrix4}).
330 Samuel Thibault for improving the Hurd port.
333 Tim Waugh for the implementation of the POSIX.2 @code{wordexp}
337 Eric Youngdale for implementing versioning of objects on the symbol level.
340 Adhemerval Zanella for optimized functions on PowerPC.
344 Some code in @theglibc{} comes from other projects and might be under
349 The timezone support code is derived from the public-domain timezone
350 package by Arthur David Olson and his many contributors.
353 Some of the support code for Mach is taken from Mach 3.0 by CMU;
354 the file if_ppp.h is also copyright by CMU, but under a different license;
355 see the file @file{LICENSES} for the text of the licenses.
358 The random number generation functions @code{random}, @code{srandom},
359 @code{setstate} and @code{initstate}, which are also the basis for the
360 @code{rand} and @code{srand} functions, were written by Earl T. Cohen
361 for the University of California at Berkeley and are copyrighted by the
362 Regents of the University of California. They have undergone minor
363 changes to fit into @theglibc{} and to fit the @w{ISO C} standard,
364 but the functional code is Berkeley's.@refill
367 The Internet-related code (most of the @file{inet} subdirectory) and
368 several other miscellaneous functions and header files have been
369 included from 4.4 BSD with little or no modification. The copying
370 permission notice for this code can be found in the file @file{LICENSES}
371 in the source distribution.
374 The @code{getaddrinfo} and @code{getnameinfo} functions and supporting
375 code were written by Craig Metz; see the file @file{LICENSES} for
376 details on their licensing.
379 The DNS resolver code is taken directly from BIND 4.9.5, which
380 includes copyrighted code from UC Berkeley and from Digital Equipment
381 Corporation. See the file @file{LICENSES} for the text of the DEC license.
384 The code to support Sun RPC is taken verbatim from Sun's
385 @w{@sc{rpcsrc-4.0}} distribution; see the file @file{LICENSES} for the
389 The math functions are taken from @code{fdlibm-5.1} by Sun
390 Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
391 Ulrich Drepper, Andreas Schwab, and Roland McGrath.
394 Many of the IEEE 64-bit double precision math functions
395 (in the @file{sysdeps/ieee754/dbl-64} subdirectory) come
396 from the IBM Accurate Mathematical Library, contributed by IBM.
399 Many of the IA64 math functions are taken from a collection of
400 ``Highly Optimized Mathematical Functions for Itanium'' that Intel
401 makes available under a free license; see the file @file{LICENSES} for