1 2 Julian Seward was the original founder, designer and author of 3 Valgrind, created the dynamic translation frameworks, wrote Memcheck, 4 the 3.X versions of Helgrind, SGCheck, DHAT, and did lots of other 5 things. 6 7 Nicholas Nethercote did the core/tool generalisation, wrote 8 Cachegrind and Massif, and tons of other stuff. 9 10 Tom Hughes did a vast number of bug fixes, helped out with support for 11 more recent Linux/glibc versions, set up the present build system, and has 12 helped out with test and build machines. 13 14 Jeremy Fitzhardinge wrote Helgrind (in the 2.X line) and totally 15 overhauled low-level syscall/signal and address space layout stuff, 16 among many other things. 17 18 Josef Weidendorfer wrote and maintains Callgrind and the associated 19 KCachegrind GUI. 20 21 Paul Mackerras did a lot of the initial per-architecture factoring 22 that forms the basis of the 3.0 line and was also seen in 2.4.0. 23 He also did UCode-based dynamic translation support for PowerPC, and 24 created a set of ppc-linux derivatives of the 2.X release line. 25 26 Greg Parker wrote the Mac OS X port. 27 28 Dirk Mueller contributed the malloc/free mismatch checking 29 and other bits and pieces, and acts as our KDE liaison. 30 31 Robert Walsh added file descriptor leakage checking, new library 32 interception machinery, support for client allocation pools, and minor 33 other tweakage. 34 35 Bart Van Assche wrote and maintains DRD. 36 37 Cerion Armour-Brown worked on PowerPC instruction set support in the 38 Vex dynamic-translation framework. Maynard Johnson improved the 39 Power6 support. 40 41 Kirill Batuzov and Dmitry Zhurikhin did the NEON instruction set 42 support for ARM. Donna Robinson did the v6 media instruction support. 43 44 Donna Robinson created and maintains the very excellent 45 http://www.valgrind.org. 46 47 Vince Weaver wrote and maintains BBV. 48 49 Frederic Gobry helped with autoconf and automake. 50 51 Daniel Berlin modified readelf's dwarf2 source line reader, written by Nick 52 Clifton, for use in Valgrind.o 53 54 Michael Matz and Simon Hausmann modified the GNU binutils demangler(s) for 55 use in Valgrind. 56 57 David Woodhouse has helped out with test and build machines over the course 58 of many releases. 59 60 Florian Krohm and Christian Borntraeger wrote and maintain the 61 S390X/Linux port. Florian improved and ruggedised the regression test 62 system during 2011. 63 64 Philippe Waroquiers wrote and maintains the embedded GDB server. He 65 also made a bunch of performance and memory-reduction fixes across 66 diverse parts of the system. 67 68 Carl Love and Maynard Johnson contributed IBM Power6 and Power7 69 support, and generally deal with ppc{32,64}-linux issues. 70 71 Petar Jovanovic and Dejan Jevtic wrote and maintain the mips32-linux 72 port. 73 74 Dragos Tatulea modified the arm-android port so it also works on 75 x86-android. 76 77 Jakub Jelinek helped out extensively with the AVX and AVX2 support. 78 79 Mark Wielaard fixed a bunch of bugs and acts as our Fedora/RHEL 80 liaison. 81 82 Maran Pakkirisamy implemented support for decimal floating point on 83 s390. 84 85 Many, many people sent bug reports, patches, and helpful feedback. 86 87 Development of Valgrind was supported in part by the Tri-Lab Partners 88 (Lawrence Livermore National Laboratory, Los Alamos National 89 Laboratory, and Sandia National Laboratories) of the U.S. Department 90 of Energy's Advanced Simulation & Computing (ASC) Program. 91
