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 Ryan S. Arnold for his improvements for Linux on PowerPC and his direction
20 as FSF Project Steward for @theglibc{}.
23 Miles Bader for writing the @code{argp} argument-parsing package, and the
24 @code{argz}/@code{envz} interfaces.
27 Jeff Bailey for his maintainership of the HPPA architecture.
30 Petr Baudis for bug fixes and testing.
33 Stephen R. van den Berg for contributing a highly-optimized
34 @code{strstr} function.
37 Ondrej Bilka for contributing optimized string routines for x64 and various
41 Eric Blake for adding O(n) implementations of @code{memmem},
42 @code{strstr} and @code{strcasestr}.
45 Philip Blundell for the ports to Linux/ARM
46 (@code{arm-@var{ANYTHING}-linuxaout}) and ARM standalone
47 (@code{arm-@var{ANYTHING}-none}), as well as for parts of the IPv6
51 Per Bothner for the implementation of the @code{libio} library which
52 is used to implement @code{stdio} functions.
55 Mark Brown for his direction as part of @theglibc{} steering
59 Thomas Bushnell for his contributions to Hurd.
62 Wilco Dijkstra for various fixes.
65 Liubov Dmitrieva for optimized string and math functions on x86-64 and
69 Ulrich Drepper for his many contributions in almost all parts of
70 @theglibc{}, including:
72 @item internationalization support, including the @code{locale} and
73 @code{localedef} utilities.
74 @item Linux i386/ELF support
75 @item the @code{hsearch} and @code{drand48} families of functions,
76 reentrant @samp{@dots{}@code{_r}} versions of the @code{random}
77 family; System V shared memory and IPC support code
78 @item several highly-optimized string functions for i@var{x}86
80 @item many math functions
81 @item the character conversion functions (@code{iconv})
82 @item the @code{ftw} and @code{nftw} functions
83 @item the floating-point printing function used by @code{printf} and friends
84 and the floating-point reading function used by @code{scanf},
85 @code{strtod} and friends
86 @item the @code{catgets} support and the entire suite of multi-byte
87 and wide-character support functions (@file{wctype.h}, @file{wchar.h}, etc.).
88 @item versioning of objects on the symbol level
92 Wilco Dijkstra for various fixes.
95 Richard Earnshaw for continued support and fixes to the various ARM
99 Paul Eggert for the @code{mktime} function and for his direction as
100 part of @theglibc{} steering committee.
103 Steve Ellcey for various fixes.
106 Tulio Magno Quites Machado Filho for adding a new class of installed
107 headers for low-level platform-specific functionality and one such for
108 PowerPC and various fixes.
111 Mike Frysinger for his maintaining of the IA64 architecture and for
112 testing and bug fixing.
115 Martin Galvan for contributing gdb pretty printer support to glibc and adding
116 an initial set of pretty printers for structures in the POSIX Threads library.
119 Michael Glad for the DES encryption function @code{crypt} and related
123 Wolfram Gloger for contributing the memory allocation functions
124 functions @code{malloc}, @code{realloc} and @code{free} and related
128 Torbj@"orn Granlund for fast implementations of many of the string
129 functions (@code{memcpy}, @code{strlen}, etc.).
132 Michael J. Haertel for writing the merge sort function @code{qsort}
133 and malloc checking functions like @code{mcheck}.
136 Bruno Haible for his improvements to the @code{iconv} and locale
140 Richard Henderson for the port to Linux on Alpha
141 (@code{alpha-@var{anything}-linux}).
144 David Holsgrove for the port to Linux on MicroBlaze.
147 Daniel Jacobowitz for various fixes and enhancements.
150 Andreas Jaeger for the port to Linux on x86-64
151 (@code{x86_64-@var{anything}-linux} and his work on Linux for MIPS
152 (@code{mips-@var{anything}-linux}), implementing the @file{ldconfig}
153 program, providing a test suite for the math library and for his
154 direction as part of @theglibc{} steering committee.
157 Aurelien Jarno for various fixes.
160 Rical Jasan for contributing various fixes in @theglibc{} manual.
163 Jakub Jelinek for implementing a number of checking functions and for
164 his direction as part of @theglibc{} steering committee.
167 Geoffrey Keating for the port to Linux on PowerPC
168 (@code{powerpc-@var{anything}-linux}).
171 Brendan Kehoe for contributing the port to the MIPS DECStation running
172 Ultrix 4 (@code{mips-dec-ultrix4}) and the port to the DEC Alpha
173 running OSF/1 (@code{alpha-dec-osf1}).
176 Mark Kettenis for implementing the @code{utmpx} interface and a utmp
177 daemon, and for a Hesiod NSS module.
180 Andi Kleen for implementing pthreads lock elision with TSX.
183 Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
184 architecture (@code{mips-@var{anything}-gnu}) and for his work on the
188 Maxim Kuvyrkov for various fixes.
191 Andreas Krebbel for his work on Linux for s390 and s390x.
194 Thorsten Kukuk for providing an implementation for NIS (YP) and NIS+,
195 securelevel 0, 1 and 2 and for the implementation for a caching daemon
196 for NSS (@file{nscd}).
199 Jeff Law for various fixes.
202 Doug Lea for contributing the memory allocation functions
203 @code{malloc}, @code{realloc} and @code{free} and related
207 Chris Leonard for various fixes and enhancements to localedata.
210 Stefan Liebler for various fixes.
213 Hongjiu Lu for providing the support for a Linux 32-bit runtime
214 environment under x86-64 (x32), for porting to Linux on IA64, for
215 improved string functions, a framework for testing IFUNC
216 implementations, and many bug fixes.
219 Luis Machado for optimized functions on PowerPC.
222 David J. MacKenzie for his contribution to the @code{getopt}
223 function and writing the @file{tar.h} header.
226 Greg McGary for adding runtime support for bounds checking.
229 Roland McGrath for writing most of @theglibc{} originally, for his
230 work on the Hurd port, his direction as part of @theglibc{} steering
231 committee and as FSF Project Steward for @theglibc{}, and for many bug
232 fixes and reviewing of contributions.
235 Allan McRae for various fixes.
238 Jason Merrill for the port to the Sequent Symmetry running Dynix
239 version 3 (@code{i386-sequent-bsd}).
242 Chris Metcalf for the port to Linux/Tile
243 (@code{tilegx-@var{anything}-linux} and
244 @code{tilepro-@var{anything}-linux}).
247 David Miller for contributing the port to Linux/Sparc
248 (@code{sparc*-@var{anything}-linux}).
251 Alan Modra for his improvements for Linux on PowerPC.
254 David Mosberger-Tang for contributing the port to Linux/Alpha
255 (@code{alpha-@var{anything}-linux}).
258 Stephen Moshier for implementing some 128-bit long double format math
262 Stephen Munroe for his port to Linux on PowerPC64
263 (@code{powerpc64-@var{anything}-linux}) and for adding optimized
264 implementations for PowerPC.
267 Paul E. Murphy for various fixes on PowerPC.
270 Joseph S. Myers for numerous bug fixes for the libm functions, for
271 his maintainership of the ARM and MIPS architectures, improving
272 cross-compilation and cross-testing of @theglibc{}, expanded
273 coverage of conformtest, merging the ports/ subdirectory
274 into the @glibcadj{} main repository and his direction as FSF Project
275 Steward for @theglibc{}.
278 Szabolcs Nagy for various fixes.
281 Will Newton for contributing some optimized string functions and pointer
282 encryption support for ARM and various fixes.
285 Carlos O'Donell for his maintainership of the HPPA architecture, for
286 maintaining @theglibc{} web pages and wiki, for his direction as FSF
287 Project Steward for @theglibc{} and various bug fixes.
290 Alexandre Oliva for adding TLS descriptors for LD and GD on x86 and
291 x86-64, for the am33 port, for completing the MIPS n64/n32/o32 multilib
292 port, for thread-safety, async-signal safety and async-cancellation
293 safety documentation in the manual, for his direction as FSF Project
294 Maintainer and for various fixes.
297 Paul Pluzhnikov for various fixes.
300 Marek Polacek for various fixes.
303 Siddhesh Poyarekar for various fixes, an implementation of a framework for
304 performance benchmarking of functions and implementing the tunables
308 Tom Quinn for contributing the startup code to support SunOS shared
309 libraries and the port to SGI machines running Irix 4
310 (@code{mips-sgi-irix4}).
313 Torvald Riegel for the implementation of new algorithms for semaphores,
314 pthread_rwlock and condition variables.
317 Maciej W. Rozycki for various fixes.
320 Pravin Satpute for writing sorting rules for some Indian languages.
323 Douglas C. Schmidt for writing the quick sort function used as a
324 fallback by @code{qsort}.
327 Will Schmidt for optimized string functions on PowerPC.
330 Andreas Schwab for the port to Linux/m68k
331 (@code{m68k-@var{anything}-linux}) and for his direction as part of
332 @theglibc{} steering committee.
335 Martin Schwidefsky for porting to Linux on s390
336 (@code{s390-@var{anything}-linux}) and s390x
337 (@code{s390x-@var{anything}-linux}).
340 Thomas Schwinge for his contribution to Hurd and the SH architecture.
343 Andrew Senkevich for contributing vector math function implementations for x86.
346 Carlos Eduardo Seo for optimized functions on PowerPC.
349 Marcus Shawcroft for contributing the AArch64 port.
352 Franz Sirl for various fixes.
355 Jes Sorensen for porting to Linux on IA64 (@code{ia64-@var{anything}-linux}).
358 Rajalakshmi Srinivasaraghavan for various fixes and optimizations on PowerPC.
361 Richard Stallman for his contribution to the @code{getopt} function.
364 Alfred M. Szmidt for various fixes.
367 Ian Lance Taylor for contributing the port to the MIPS DECStation
368 running Ultrix 4 (@code{mips-dec-ultrix4}).
371 Samuel Thibault for improving the Hurd port.
374 Tim Waugh for the implementation of the POSIX.2 @code{wordexp}
378 Zack Weinberg for the @code{explicit_bzero} implementation and for various
382 Eric Youngdale for implementing versioning of objects on the symbol level.
385 Adhemerval Zanella for optimized functions on PowerPC and various fixes.
389 Some code in @theglibc{} comes from other projects and might be under
394 The timezone support code is derived from the public-domain timezone
395 package by Arthur David Olson and his many contributors.
398 Some of the support code for Mach is taken from Mach 3.0 by CMU;
399 the file @file{if_ppp.h} is also copyright by CMU, but under a different license;
400 see the file @file{LICENSES} for the text of the licenses.
403 The random number generation functions @code{random}, @code{srandom},
404 @code{setstate} and @code{initstate}, which are also the basis for the
405 @code{rand} and @code{srand} functions, were written by Earl T. Cohen
406 for the University of California at Berkeley and are copyrighted by the
407 Regents of the University of California. They have undergone minor
408 changes to fit into @theglibc{} and to fit the @w{ISO C} standard,
409 but the functional code is Berkeley's.@refill
412 The Internet-related code (most of the @file{inet} subdirectory) and
413 several other miscellaneous functions and header files have been
414 included from 4.4 BSD with little or no modification. The copying
415 permission notice for this code can be found in the file @file{LICENSES}
416 in the source distribution.
419 The @code{getaddrinfo} and @code{getnameinfo} functions and supporting
420 code were written by Craig Metz; see the file @file{LICENSES} for
421 details on their licensing.
424 The DNS resolver code is taken directly from BIND 4.9.5, which
425 includes copyrighted code from UC Berkeley and from Digital Equipment
426 Corporation. See the file @file{LICENSES} for the text of the DEC license.
429 The code to support Sun RPC is taken verbatim from Sun's
430 @w{@sc{rpcsrc-4.0}} distribution; see the file @file{LICENSES} for the
434 The math functions are taken from @code{fdlibm-5.1} by Sun
435 Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
436 Ulrich Drepper, Andreas Schwab, and Roland McGrath.
439 Many of the IEEE 64-bit double precision math functions
440 (in the @file{sysdeps/ieee754/dbl-64} subdirectory) come
441 from the IBM Accurate Mathematical Library, contributed by IBM.
444 Many of the IA64 math functions are taken from a collection of
445 ``Highly Optimized Mathematical Functions for Itanium'' that Intel
446 makes available under a free license; see the file @file{LICENSES} for