1(This file is under construction.) -*- text -*- 2 3If you've contributed to gas and your name isn't listed here, it is 4not meant as a slight. I just don't know about it. Email me, 5nickc@redhat.com and I'll correct the situation. 6 7This file will eventually be deleted: The general info will go into 8the documentation, and info on specific files will go into an AUTHORS 9file, as requested by the FSF. 10 11++++++++++++++++ 12 13Dean Elsner wrote the original gas for vax. [more details?] 14 15Jay Fenlason maintained gas for a while, adding support for 16gdb-specific debug information and the 68k series machines, most of 17the preprocessing pass, and extensive changes in messages.c, 18input-file.c, write.c. 19 20K. Richard Pixley maintained gas for a while, adding various 21enhancements and many bug fixes, including merging support for several 22processors, breaking gas up to handle multiple object file format 23backends (including heavy rewrite, testing, an integration of the coff 24and b.out backends), adding configuration including heavy testing and 25verification of cross assemblers and file splits and renaming, 26converted gas to strictly ansi C including full prototypes, added 27support for m680[34]0 & cpu32, considerable work on i960 including a 28coff port (including considerable amounts of reverse engineering), a 29sparc opcode file rewrite, decstation, rs6000, and hp300hpux host 30ports, updated "know" assertions and made them work, much other 31reorganization, cleanup, and lint. 32 33Ken Raeburn wrote the high-level BFD interface code to replace most of 34the code in format-specific I/O modules. 35 36The original Vax-VMS support was contributed by David L. Kashtan. 37Eric Youngdale and Pat Rankin have done much work with it since. 38 39The Intel 80386 machine description was written by Eliot Dresselhaus. 40 41Minh Tran-Le at IntelliCorp contributed some AIX 386 support. 42 43The Motorola 88k machine description was contributed by Devon Bowen of 44Buffalo University and Torbjorn Granlund of the Swedish Institute of 45Computer Science. 46 47Keith Knowles at the Open Software Foundation wrote the original MIPS 48back end (tc-mips.c, tc-mips.h), and contributed Rose format support 49that hasn't been merged in yet. Ralph Campbell worked with the MIPS 50code to support a.out format. 51 52Support for the Zilog Z8k and Hitachi H8/300, H8/500 and SH processors 53(tc-z8k, tc-h8300, tc-h8500, tc-sh), and IEEE 695 object file format 54(obj-ieee), was written by Steve Chamberlain of Cygnus Solutions. 55Steve also modified the COFF back end (obj-coffbfd) to use BFD for 56some low-level operations, for use with the Hitachi, 29k and Zilog 57targets. 58 59John Gilmore built the AMD 29000 support, added .include support, and 60simplified the configuration of which versions accept which 61pseudo-ops. He updated the 68k machine description so that Motorola's 62opcodes always produced fixed-size instructions (e.g. jsr), while 63synthetic instructions remained shrinkable (jbsr). John fixed many 64bugs, including true tested cross-compilation support, and one bug in 65relaxation that took a week and required the proverbial one-bit fix. 66 67Ian Lance Taylor of Cygnus Solutions merged the Motorola and MIT 68syntaxes for the 68k, completed support for some COFF targets (68k, 69i386 SVR3, and SCO Unix), wrote the ECOFF support based on Michael 70Meissner's mips-tfile program, wrote the PowerPC and RS/6000 support, 71and made a few other minor patches. He handled the binutils releases 72for versions 2.7 through 2.9. 73 74David Edelsohn contributed fixes for the PowerPC and AIX support. 75 76Steve Chamberlain made gas able to generate listings. 77 78Support for the HP9000/300 was contributed by Glenn Engel of HP. 79 80Support for ELF format files has been worked on by Mark Eichin of 81Cygnus Solutions (original, incomplete implementation), Pete 82Hoogenboom at the University of Utah (HPPA mainly), Michael Meissner 83of the Open Software Foundation (i386 mainly), and Ken Raeburn of 84Cygnus Solutions (sparc, initial 64-bit support). 85 86Several engineers at Cygnus Solutions have also provided many small 87bug fixes and configuration enhancements. 88 89The initial Alpha support was contributed by Carnegie-Mellon 90University. Additional work was done by Ken Raeburn of Cygnus 91Solutions. Richard Henderson then rewrote much of the Alpha support. 92 93Ian Dall updated the support code for the National Semiconductor 32000 94series, and added support for Mach 3 and NetBSD running on the PC532. 95 96Klaus Kaempf ported the assembler and the binutils to openVMS/Alpha. 97 98Steve Haworth contributed the support for the Texas Instruction c30 99(tms320c30). 100 101H.J. Lu has contributed many patches and much testing. 102 103Alan Modra reworked much of the i386 backend, improving the error 104checking, updating the code, and improving the 16 bit support, using 105patches from the work of Martynas Kunigelis and H.J. Lu. 106 107Many others have contributed large or small bugfixes and enhancements. If 108you've contributed significant work and are not mentioned on this list, and 109want to be, let us know. Some of the history has been lost; we aren't 110intentionally leaving anyone out. 111 112Copyright (C) 2012-2021 Free Software Foundation, Inc. 113 114Copying and distribution of this file, with or without modification, 115are permitted in any medium without royalty provided the copyright 116notice and this notice are preserved. 117