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 Eric Blake for adding O(n) implementations of @code{memmem},
33 @code{strstr} and @code{strcasestr}.
36 Philip Blundell for the ports to Linux/ARM
37 (@code{arm-@var{ANYTHING}-linuxaout}) and ARM standalone
38 (@code{arm-@var{ANYTHING}-none}), as well as for parts of the IPv6
42 Per Bothner for the implementation of the @code{libio} library which
43 is used to implement @code{stdio} functions.
46 Mark Brown for his direction as part of @theglibc{} steering
50 Thomas Bushnell for his contributions to Hurd.
53 Liubov Dmitrieva for optimzed string and math functions on x86-64 and
57 Ulrich Drepper for his many contributions in almost all parts of
58 @theglibc{}, including:
60 @item internationalization support, including the @code{locale} and
61 @code{localedef} utilities.
62 @item Linux i386/ELF support
63 @item the @code{hsearch} and @code{drand48} families of functions,
64 reentrant @samp{@dots{}@code{_r}} versions of the @code{random}
65 family; System V shared memory and IPC support code
66 @item several highly-optimized string functions for i@var{x}86
68 @item many math functions
69 @item the character conversion functions (@code{iconv})
70 @item the @code{ftw} and @code{nftw} functions
71 @item the floating-point printing function used by @code{printf} and friends
72 and the floating-point reading function used by @code{scanf},
73 @code{strtod} and friends
74 @item the @code{catgets} support and the entire suite of multi-byte
75 and wide-character support functions (@file{wctype.h}, @file{wchar.h}, etc.).
76 @item versioning of objects on the symbol level
80 Paul Eggert for the @code{mktime} function and for his direction as
81 part of @theglibc{} steering committee.
84 Tulio Magno Quites Machado Filho for adding a new class of installed
85 headers for low-level platform-specific functionality and one such for
89 Mike Frysinger for his maintaining of the IA64 architecture and for
90 testing and bug fixing.
93 Michael Glad for the DES encryption function @code{crypt} and related
97 Wolfram Gloger for contributing the memory allocation functions
98 functions @code{malloc}, @code{realloc} and @code{free} and related
102 Torbj@"orn Granlund for fast implementations of many of the string
103 functions (@code{memcpy}, @code{strlen}, etc.).
106 Michael J. Haertel for writing the merge sort function @code{qsort}
107 and malloc checking functions like @code{mcheck}.
110 Bruno Haible for his improvements to the @code{iconv} and locale
114 Richard Henderson for the port to Linux on Alpha
115 (@code{alpha-@var{anything}-linux}).
118 Daniel Jacobowitz for various fixes and enhancements.
121 Andreas Jaeger for the port to Linux on x86-64
122 (@code{x86_64-@var{anything}-linux} and his work on Linux for MIPS
123 (@code{mips-@var{anything}-linux}), implementing the @file{ldconfig}
124 program, providing a test suite for the math library and for his
125 direction as part of @theglibc{} steering committee.
128 Aurelien Jarno for various fixes.
131 Jakub Jelinek for implementing a number of checking functions and for
132 his direction as part of @theglibc{} steering committee.
135 Geoffrey Keating for the port to Linux on PowerPC
136 (@code{powerpc-@var{anything}-linux}).
139 Brendan Kehoe for contributing the port to the MIPS DECStation running
140 Ultrix 4 (@code{mips-dec-ultrix4}) and the port to the DEC Alpha
141 running OSF/1 (@code{alpha-dec-osf1}).
144 Mark Kettenis for implementing the @code{utmpx} interface and an utmp
145 daemon, and for a Hesiod NSS module.
148 Kazumoto Kojima for the port of the Mach and Hurd code to the MIPS
149 architecture (@code{mips-@var{anything}-gnu}) and for his work on the
153 Andreas Krebbel for his work on Linux for s390 and s390x.
156 Thorsten Kukuk for providing an implementation for NIS (YP) and NIS+,
157 securelevel 0, 1 and 2 and for the implementation for a caching daemon
158 for NSS (@file{nscd}).
161 Jeff Law for various fixes.
164 Doug Lea for contributing the memory allocation functions
165 functions @code{malloc}, @code{realloc} and @code{free} and related
169 Hongjiu Lu for providing the support for a Linux 32-bit runtime
170 environment under x86-64 (x32), for porting to Linux on IA64, for
171 improved string functions and many bug fixes.
174 Luis Machado for optimized functions on PowerPC.
177 David J. MacKenzie for his contribution to the @code{getopt}
178 function and writing the @file{tar.h} header.
181 Greg McGary for adding runtime support for bounds checking.
184 Roland McGrath for writing most of @theglibc{} originally, for his
185 work on the Hurd port, his direction as part of @theglibc{} steering
186 committee, and for many bug fixes and reviewing of contributions.
189 Jason Merrill for the port to the Sequent Symmetry running Dynix
190 version 3 (@code{i386-sequent-bsd}).
193 Chris Metcalf for the port to Linux/Tile
194 (@code{tilegx-@var{anything}-linux} and
195 @code{tilepro-@var{anything}-linux}).
198 David Miller for contributing the port to Linux/Sparc
199 (@code{sparc*-@var{anything}-linux}).
202 Alan Modra for his improvements for Linux on PowerPC.
205 David Mosberger-Tang for contributing the port to Linux/Alpha
206 (@code{alpha-@var{anything}-linux}).
209 Stephen Moshier for implementing some 128-bit long double format math
213 Stephen Munroe for his port to Linux on PowerPC64
214 (@code{powerpc64-@var{anything}-linux}) and for adding optimized
215 implementations for PowerPC.
218 Joseph S. Myers for numerous bug fixes for the libm functions and for
219 his maintainership of the ARM and MIPS architectures.
222 Carlos O'Donell for his maintainership of the HPPA architecture and
223 maintaining @theglibc{} web pages.
226 Alexandra Oliva for adding TLS descriptors for LD and GD on x86 and
230 Paul Pluzhnikov for various fixes.
233 Marek Polacek for various fixes.
236 Siddhesh Poyarekar for various fixes.
239 Tom Quinn for contributing the startup code to support SunOS shared
240 libraries and the port to SGI machines running Irix 4
241 (@code{mips-sgi-irix4}).
244 Pravin Satpute for writing sorting rules for some Indian languages.
247 Douglas C. Schmidt for writing the quick sort function used as a
248 fallback by @code{qsort}.
251 Will Schmidt for optimized string functions on PowerPC.
254 Andreas Schwab for the port to Linux/m68k
255 (@code{m68k-@var{anything}-linux}) and for his direction as part of
256 @theglibc{} steering committee.
259 Martin Schwidefsky for porting to Linux on s390
260 (@code{s390-@var{anything}-linux}) and s390x
261 (@code{s390x-@var{anything}-linux}).
264 Thomas Schwinge for his contribution to Hurd and the SH architecture.
267 Carlos Eduardo Seo for optimized functions on PowerPC.
270 Franz Sirl for various fixes.
273 Jes Sorensen for porting to Linux on IA64 (@code{ia64-@var{anything}-linux}).
276 Richard Stallman for his contribution to the @code{getopt} function.
279 Alfred M. Szmidt for various fixes.
282 Ian Lance Taylor for contributing the port to the MIPS DECStation
283 running Ultrix 4 (@code{mips-dec-ultrix4}).
286 Samuel Thibault for improving the Hurd port.
289 Tim Waugh for the implementation of the POSIX.2 @code{wordexp}
293 Eric Youngdale for implementing versioning of objects on the symbol level.
296 Adhemerval Zanella for optimized functions on PowerPC.
300 Some code in @theglibc{} comes from other projects and might be under
305 The timezone support code is derived from the public-domain timezone
306 package by Arthur David Olson and his many contributors.
309 Some of the support code for Mach is taken from Mach 3.0 by CMU;
310 the file if_ppp.h is also copyright by CMU, but under a different license;
311 see the file @file{LICENSES} for the text of the licenses.
314 The random number generation functions @code{random}, @code{srandom},
315 @code{setstate} and @code{initstate}, which are also the basis for the
316 @code{rand} and @code{srand} functions, were written by Earl T. Cohen
317 for the University of California at Berkeley and are copyrighted by the
318 Regents of the University of California. They have undergone minor
319 changes to fit into @theglibc{} and to fit the @w{ISO C} standard,
320 but the functional code is Berkeley's.@refill
323 The Internet-related code (most of the @file{inet} subdirectory) and
324 several other miscellaneous functions and header files have been
325 included from 4.4 BSD with little or no modification. The copying
326 permission notice for this code can be found in the file @file{LICENSES}
327 in the source distribution.
330 The @code{getaddrinfo} and @code{getnameinfo} functions and supporting
331 code were written by Craig Metz; see the file @file{LICENSES} for
332 details on their licensing.
335 The DNS resolver code is taken directly from BIND 4.9.5, which
336 includes copyrighted code from UC Berkeley and from Digital Equipment
337 Corporation. See the file @file{LICENSES} for the text of the DEC license.
340 The code to support Sun RPC is taken verbatim from Sun's
341 @w{@sc{rpcsrc-4.0}} distribution; see the file @file{LICENSES} for the
345 The math functions are taken from @code{fdlibm-5.1} by Sun
346 Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
347 Ulrich Drepper, Andreas Schwab, and Roland McGrath.
350 Many of the IEEE 64-bit double precision math functions
351 (in the @file{sysdeps/ieee754/dbl-64} subdirectory) come
352 from the IBM Accurate Mathematical Library, contributed by IBM.
355 Many of the IA64 math functions are taken from a collection of
356 ``Highly Optimized Mathematical Functions for Itanium'' that Intel
357 makes available under a free license; see the file @file{LICENSES} for