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Modular Debugger
The modular debugger (mdb) is an extensible, low-level debugger developed by Sun Microsystems for the Solaris 7 operating system. It is now open sourced, under the Common Development and Distribution License (CDDL). Its source code is now available in all open source derivatives of Solaris, such as Illumos. History The mdb project was started in 1997 by Mike Shapiro and others when the Solaris operating system was adding support for 64-bit architectures. Up until that point, Solaris was using the aging adb debugger developed by Steve Bourne (initially for the AT&T SVR4 Unix distribution). It was very difficult to simply port adb from a 32-bit architecture to a 64-bit architecture, so Sun engineers decided to make a new debugger that would feature enhanced debugging capabilities, while being backward compatible with adb. See also *dbx (debugger) dbx is a source-level debugger found primarily on Solaris, AIX, IRIX, Tru64 UNIX, Linux and BSD operating systems. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sun Microsystems
Sun Microsystems, Inc. (Sun for short) was an American technology company that sold computers, computer components, software, and information technology services and created the Java programming language, the Solaris operating system, ZFS, the Network File System (NFS), and SPARC microprocessors. Sun contributed significantly to the evolution of several key computing technologies, among them Unix, RISC processors, thin client computing, and virtualized computing. Notable Sun acquisitions include Cray Business Systems Division, Storagetek, and ''Innotek GmbH'', creators of VirtualBox. Sun was founded on February 24, 1982. At its height, the Sun headquarters were in Santa Clara, California (part of Silicon Valley), on the former west campus of the Agnews Developmental Center. Sun products included computer servers and workstations built on its own RISC-based SPARC processor architecture, as well as on x86-based AMD Opteron and Intel Xeon processors. Sun also developed its own ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solaris (operating System)
Solaris is a proprietary Unix operating system originally developed by Sun Microsystems. After the Sun acquisition by Oracle in 2010, it was renamed Oracle Solaris. Solaris superseded the company's earlier SunOS in 1993, and became known for its scalability, especially on SPARC systems, and for originating many innovative features such as DTrace, ZFS and Time Slider. Solaris supports SPARC and x86-64 workstations and servers from Oracle and other vendors. Solaris was registered as compliant with the Single UNIX Specification until 29 April 2019. Historically, Solaris was developed as proprietary software. In June 2005, Sun Microsystems released most of the codebase under the CDDL license, and founded the OpenSolaris open-source project. With OpenSolaris, Sun wanted to build a developer and user community around the software. After the acquisition of Sun Microsystems in January 2010, Oracle decided to discontinue the OpenSolaris distribution and the development model. In Aug ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Common Development And Distribution License
The Common Development and Distribution License (CDDL) is a free and open-source software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL). Files licensed under the CDDL can be combined with files licensed under other licenses, whether open source or proprietary. In 2005 the Open Source Initiative approved the license. The Free Software Foundation (FSF) considers it a free software license, but one which is incompatible with the GNU General Public License (GPL). Terms Derived from the Mozilla Public License 1.1, the CDDL tries to address some of the problems of the MPL.CDDL Why Summary on sun.com (archived, 2005) Like the MPL, the CDDL is a weak |
Illumos
Illumos (stylized as illumos) is a partly free and open-source Unix operating system. It is based on OpenSolaris, which was based on System V Release 4 (SVR4) and the Berkeley Software Distribution (BSD). Illumos comprises a kernel, device drivers, system libraries, and utility software for system administration. This core is now the base for many different open-sourced illumos distributions, in a similar way in which the Linux kernel is used in different Linux distributions. The maintainers write ''illumos'' in lowercase since some computer fonts do not clearly distinguish a lowercase ''L'' from an uppercase ''i'': ''Il'' (see homoglyph). The project name is a combination of words ''illuminare'' from Latin for ''to light'' and ''OS'' for ''Operating System''. Overview Illumos was announced via webinar on Thursday, 3 August 2010, as a community effort of some core Solaris engineers to create a truly open source Solaris by swapping closed source bits of OpenSolaris wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mike Shapiro (programmer)
Michael W. Shapiro is an American computer programmer who worked in operating systems and storage at Sun Microsystems, Oracle, and EMC. While working at Sun Microsystems, Shapiro developed pgrep, the Modular Debugger (MDB), DTrace, fault management and diagnosis, and other software for Sun's Solaris operating system. The pgrep and pkill utilities Shapiro created are today found in every major Unix operating system, including Linux, BSD, and macOS, and are commonly used by system administrators and developers. Shapiro and the DTrace team received a Technology Innovation Award and Overall Gold Medal for Innovation for DTrace from the Wall Street Journal in 2006. DTrace was also recognized by USENIX with the Software Tools User Group (STUG) award in 2008. Over the next 10 years, DTrace was ported and incorporated into other major operating systems, including BSD and Apple's macOS. Starting in 2006, Shapiro led Sun's engineering effort to build a commercial storage product using ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Advanced Debugger
The advanced debugger adb is the standard UNIX debugger found on Solaris 1 and 2, HP-UX, SCO and Venix. It is the successor of a debugger called db. Overview The initial version was written by Stephen R. Bourne. ADB is the standard debugger on Solaris and the Solaris kernel debugger ''kadb'' that was introduced with SunOS-3.5 (1986) is a minor variant of adb. A version of ADB was integrated into the BSD kernel as a kernel debugger. On Solaris, ADB was replaced by the Modular Debugger mdb with Solaris 8 (2000) and the ADB command-line interface A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and pro ... now is emulated by mdb when it is called as adb. Mdb has become OpenSource with OpenSolaris. See also * DBX, the symbolic debugger References External linksA Tutorial Introduction to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steve Bourne
Stephen Richard "Steve" Bourne (born 7 January 1944) is an English computer scientist based in the United States for most of his career. He is well known as the author of the Bourne shell (sh), which is the foundation for the standard command-line interfaces to Unix. Biography Bourne has a Bachelor of Science (B.S.) degree in mathematics from King's College London, England. He has a Diploma in Computer Science and a Doctor of Philosophy (Ph.D.) in mathematics from Trinity College, Cambridge. Subsequently, he worked on an ALGOL 68 compiler at the University of Cambridge Computer Laboratory (see ALGOL 68C). He also worked on CAMAL, a system for algebraic manipulation used for lunar theory calculations. After the University of Cambridge, Bourne spent nine years at Bell Labs with the Seventh Edition Unix team. Besides the Bourne shell, he wrote the adb debugger and ''The Unix System'', the second book on the topic, intended for general readers. After Bell Labs, Bourne worked in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dbx (debugger)
dbx is a source-level debugger found primarily on Solaris, AIX, IRIX, Tru64 UNIX, Linux and BSD operating systems. It provides symbolic debugging for programs written in C, C++, Fortran, Pascal and Java. Useful features include stepping through programs one source line or machine instruction at a time. In addition to simply viewing operation of the program, variables can be manipulated and a wide range of expressions can be evaluated and displayed. History dbx was originally developed at University of California, Berkeley, by Mark Linton during the years 1981–1984 and subsequently made its way to various vendors who had licensed BSD. Availability Besides being provided to various vendors through BSD, dbx has also found its way into other products: * dbx is also available on IBM z/OS systems, in the UNIX System Services component. dbx for z/OS can debug programs written in C and C++, and can also perform machine level debugging. As of z/OS V1R5, dbx is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ACM Queue
''ACM Queue'' is a bimonthly computer magazine founded and published by the Association for Computing Machinery The Association for Computing Machinery (ACM) is a US-based international learned society for computing. It was founded in 1947 and is the world's largest scientific and educational computing society. The ACM is a non-profit professional member ... (ACM). The magazine was established in 2003. Steve Bourne helped found the magazine when he was president of the ACM and is chair of the editorial board. The magazine is produced by computing professionals and is intended for computing professionals. It is available only in electronic form and is available on the Internet on subscription basis. Some of the articles published in ''Queue'' are also included in ACM's monthly magazine, ''Communications of the ACM'', in the Practitioner section. References External links Official website {{compu-mag-stub Computer magazines published in the United States Bimonthly magazin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
