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 Nick Alcock for contributing fixes to allow @theglibc{} to be built with the
16 stack smashing protector enabled.
19 John David Anglin for various fixes to the hppa port.
22 Ryan S. Arnold for his improvements for Linux on PowerPC and his direction
23 as FSF Project Steward for @theglibc{}.
26 Miles Bader for writing the @code{argp} argument-parsing package, and the
27 @code{argz}/@code{envz} interfaces.
30 Jeff Bailey for his maintainership of the HPPA architecture.
33 Petr Baudis for bug fixes and testing.
36 Stephen R. van den Berg for contributing a highly-optimized
37 @code{strstr} function.
40 Ondrej Bilka for contributing optimized string routines for x64 and various
44 Eric Blake for adding O(n) implementations of @code{memmem},
45 @code{strstr} and @code{strcasestr}.
48 Philip Blundell for the ports to Linux/ARM
49 (@code{arm-@var{ANYTHING}-linuxaout}) and ARM standalone
50 (@code{arm-@var{ANYTHING}-none}), as well as for parts of the IPv6
54 Per Bothner for the implementation of the @code{libio} library which
55 is used to implement @code{stdio} functions.
58 Mark Brown for his direction as part of @theglibc{} steering
62 Thomas Bushnell for his contributions to Hurd.
65 DJ Delorie for various fixes.
68 Wilco Dijkstra for various fixes.
71 Liubov Dmitrieva for optimized string and math functions on x86-64 and
75 Ulrich Drepper for his many contributions in almost all parts of
76 @theglibc{}, including:
78 @item internationalization support, including the @code{locale} and
79 @code{localedef} utilities.
80 @item Linux i386/ELF support
81 @item the @code{hsearch} and @code{drand48} families of functions,
82 reentrant @samp{@dots{}@code{_r}} versions of the @code{random}
83 family; System V shared memory and IPC support code
84 @item several highly-optimized string functions for i@var{x}86
86 @item many math functions
87 @item the character conversion functions (@code{iconv})
88 @item the @code{ftw} and @code{nftw} functions
89 @item the floating-point printing function used by @code{printf} and friends
90 and the floating-point reading function used by @code{scanf},
91 @code{strtod} and friends
92 @item the @code{catgets} support and the entire suite of multi-byte
93 and wide-character support functions (@file{wctype.h}, @file{wchar.h}, etc.).
94 @item versioning of objects on the symbol level
98 Wilco Dijkstra for various fixes.
101 Richard Earnshaw for continued support and fixes to the various ARM
105 Paul Eggert for the @code{mktime} function and for his direction as
106 part of @theglibc{} steering committee.
109 Steve Ellcey for various fixes.
113 Mike FABIAN for various fixes to locales.
116 Tulio Magno Quites Machado Filho for adding a new class of installed
117 headers for low-level platform-specific functionality and one such for
118 PowerPC and various fixes.
121 Mike Frysinger for his maintaining of the IA64 architecture and for
122 testing and bug fixing.
125 Martin Galvan for contributing gdb pretty printer support to glibc and adding
126 an initial set of pretty printers for structures in the POSIX Threads library.
129 Michael Glad for the DES encryption function @code{crypt} and related
133 Wolfram Gloger for contributing the memory allocation functions
134 functions @code{malloc}, @code{realloc} and @code{free} and related
138 Torbj@"orn Granlund for fast implementations of many of the string
139 functions (@code{memcpy}, @code{strlen}, etc.).
142 Michael J. Haertel for writing the merge sort function @code{qsort}
143 and malloc checking functions like @code{mcheck}.
146 Bruno Haible for his improvements to the @code{iconv} and locale
150 Richard Henderson for the port to Linux on Alpha
151 (@code{alpha-@var{anything}-linux}).
154 David Holsgrove for the port to Linux on MicroBlaze.
157 Daniel Jacobowitz for various fixes and enhancements.
160 Andreas Jaeger for the port to Linux on x86-64
161 (@code{x86_64-@var{anything}-linux} and his work on Linux for MIPS
162 (@code{mips-@var{anything}-linux}), implementing the @file{ldconfig}
163 program, providing a test suite for the math library and for his
164 direction as part of @theglibc{} steering committee.
167 Aurelien Jarno for various fixes.
170 Rical Jasan for contributing various fixes in @theglibc{} manual.
173 Jakub Jelinek for implementing a number of checking functions and for
174 his direction as part of @theglibc{} steering committee.
177 Geoffrey Keating for the port to Linux on PowerPC
178 (@code{powerpc-@var{anything}-linux}).
181 Brendan Kehoe for contributing the port to the MIPS DECStation running
182 Ultrix 4 (@code{mips-dec-ultrix4}) and the port to the DEC Alpha
183 running OSF/1 (@code{alpha-dec-osf1}).
186 Mark Kettenis for implementing the @code{utmpx} interface and a utmp
187 daemon, and for a Hesiod NSS module.
190 Andi Kleen for implementing pthreads lock elision with TSX.
193 Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
194 architecture (@code{mips-@var{anything}-gnu}) and for his work on the
198 Maxim Kuvyrkov for various fixes.
201 Andreas Krebbel for his work on Linux for s390 and s390x.
204 Thorsten Kukuk for providing an implementation for NIS (YP) and NIS+,
205 securelevel 0, 1 and 2 and for the implementation for a caching daemon
206 for NSS (@file{nscd}).
209 Akhilesh Kumar for various fixes to locales.
212 Jeff Law for various fixes.
215 Doug Lea for contributing the memory allocation functions
216 @code{malloc}, @code{realloc} and @code{free} and related
220 Chris Leonard for various fixes and enhancements to localedata.
223 Stefan Liebler for various fixes.
226 Hongjiu Lu for providing the support for a Linux 32-bit runtime
227 environment under x86-64 (x32), for porting to Linux on IA64, for
228 improved string functions, a framework for testing IFUNC
229 implementations, and many bug fixes.
232 Rafal Luzynski for various fixes to locales.
235 Luis Machado for optimized functions on PowerPC.
238 David J. MacKenzie for his contribution to the @code{getopt}
239 function and writing the @file{tar.h} header.
242 Greg McGary for adding runtime support for bounds checking.
245 Roland McGrath for writing most of @theglibc{} originally, for his
246 work on the Hurd port, his direction as part of @theglibc{} steering
247 committee and as FSF Project Steward for @theglibc{}, and for many bug
248 fixes and reviewing of contributions.
251 Allan McRae for various fixes.
254 Jason Merrill for the port to the Sequent Symmetry running Dynix
255 version 3 (@code{i386-sequent-bsd}).
258 Chris Metcalf for the port to Linux/Tile
259 (@code{tilegx-@var{anything}-linux} and
260 @code{tilepro-@var{anything}-linux}).
263 David Miller for contributing the port to Linux/Sparc
264 (@code{sparc*-@var{anything}-linux}).
267 Alan Modra for his improvements for Linux on PowerPC.
270 David Mosberger-Tang for contributing the port to Linux/Alpha
271 (@code{alpha-@var{anything}-linux}).
274 Wainer dos Santos Moschetta for various fixes to powerpc.
277 Stephen Moshier for implementing some 128-bit long double format math
281 Stephen Munroe for his port to Linux on PowerPC64
282 (@code{powerpc64-@var{anything}-linux}) and for adding optimized
283 implementations for PowerPC.
286 Paul E. Murphy for various fixes on PowerPC.
289 Joseph S. Myers for numerous bug fixes for the libm functions, for
290 his maintainership of the ARM and MIPS architectures, improving
291 cross-compilation and cross-testing of @theglibc{}, expanded
292 coverage of conformtest, merging the ports/ subdirectory
293 into the @glibcadj{} main repository and his direction as FSF Project
294 Steward for @theglibc{}.
297 Marko Myllynen for various fixes.
300 Szabolcs Nagy for various fixes.
303 Will Newton for contributing some optimized string functions and pointer
304 encryption support for ARM and various fixes.
307 Carlos O'Donell for his maintainership of the HPPA architecture, for
308 maintaining @theglibc{} web pages and wiki, for his direction as FSF
309 Project Steward for @theglibc{} and various bug fixes.
312 Alexandre Oliva for adding TLS descriptors for LD and GD on x86 and
313 x86-64, for the am33 port, for completing the MIPS n64/n32/o32 multilib
314 port, for thread-safety, async-signal safety and async-cancellation
315 safety documentation in the manual, for his direction as FSF Project
316 Maintainer and for various fixes.
319 Paul Pluzhnikov for various fixes.
322 Marek Polacek for various fixes.
325 Siddhesh Poyarekar for various fixes, an implementation of a framework for
326 performance benchmarking of functions and implementing the tunables
330 Tom Quinn for contributing the startup code to support SunOS shared
331 libraries and the port to SGI machines running Irix 4
332 (@code{mips-sgi-irix4}).
335 Torvald Riegel for the implementation of new algorithms for semaphores,
336 pthread_rwlock and condition variables.
339 Maciej W. Rozycki for various fixes.
342 Pravin Satpute for writing sorting rules for some Indian languages.
345 Douglas C. Schmidt for writing the quick sort function used as a
346 fallback by @code{qsort}.
349 Will Schmidt for optimized string functions on PowerPC.
352 Andreas Schwab for the port to Linux/m68k
353 (@code{m68k-@var{anything}-linux}) and for his direction as part of
354 @theglibc{} steering committee.
357 Martin Schwidefsky for porting to Linux on s390
358 (@code{s390-@var{anything}-linux}) and s390x
359 (@code{s390x-@var{anything}-linux}).
362 Thomas Schwinge for his contribution to Hurd and the SH architecture.
365 Andrew Senkevich for contributing vector math function implementations for x86.
368 Carlos Eduardo Seo for optimized functions on PowerPC.
371 Marcus Shawcroft for contributing the AArch64 port.
374 Franz Sirl for various fixes.
377 Jes Sorensen for porting to Linux on IA64 (@code{ia64-@var{anything}-linux}).
380 Rajalakshmi Srinivasaraghavan for various fixes and optimizations on PowerPC.
383 Richard Stallman for his contribution to the @code{getopt} function.
386 Alfred M. Szmidt for various fixes.
389 Chung-Lin Tang for contributing the Nios II port.
392 Ian Lance Taylor for contributing the port to the MIPS DECStation
393 running Ultrix 4 (@code{mips-dec-ultrix4}).
396 Samuel Thibault for improving the Hurd port.
399 Pino Toscano for various fixes.
402 Tim Waugh for the implementation of the POSIX.2 @code{wordexp}
406 Zack Weinberg for the @code{explicit_bzero} implementation and for various
410 Eric Youngdale for implementing versioning of objects on the symbol level.
413 Adhemerval Zanella for optimized functions on PowerPC and various fixes.
417 Some code in @theglibc{} comes from other projects and might be under
422 The timezone support code is derived from the public-domain timezone
423 package by Arthur David Olson and his many contributors.
426 Some of the support code for Mach is taken from Mach 3.0 by CMU;
427 the file @file{if_ppp.h} is also copyright by CMU, but under a different license;
428 see the file @file{LICENSES} for the text of the licenses.
431 The random number generation functions @code{random}, @code{srandom},
432 @code{setstate} and @code{initstate}, which are also the basis for the
433 @code{rand} and @code{srand} functions, were written by Earl T. Cohen
434 for the University of California at Berkeley and are copyrighted by the
435 Regents of the University of California. They have undergone minor
436 changes to fit into @theglibc{} and to fit the @w{ISO C} standard,
437 but the functional code is Berkeley's.@refill
440 The Internet-related code (most of the @file{inet} subdirectory) and
441 several other miscellaneous functions and header files have been
442 included from 4.4 BSD with little or no modification. The copying
443 permission notice for this code can be found in the file @file{LICENSES}
444 in the source distribution.
447 The @code{getaddrinfo} and @code{getnameinfo} functions and supporting
448 code were written by Craig Metz; see the file @file{LICENSES} for
449 details on their licensing.
452 The DNS resolver code is taken directly from BIND 4.9.5, which
453 includes copyrighted code from UC Berkeley and from Digital Equipment
454 Corporation. See the file @file{LICENSES} for the text of the DEC license.
457 The code to support Sun RPC is taken verbatim from Sun's
458 @w{@sc{rpcsrc-4.0}} distribution; see the file @file{LICENSES} for the
462 The math functions are taken from @code{fdlibm-5.1} by Sun
463 Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
464 Ulrich Drepper, Andreas Schwab, and Roland McGrath.
467 Many of the IEEE 64-bit double precision math functions
468 (in the @file{sysdeps/ieee754/dbl-64} subdirectory) come
469 from the IBM Accurate Mathematical Library, contributed by IBM.
472 Many of the IA64 math functions are taken from a collection of
473 ``Highly Optimized Mathematical Functions for Itanium'' that Intel
474 makes available under a free license; see the file @file{LICENSES} for