Modular Debugger: Difference between revisions

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Revision as of 18:19, 2 April 2011

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The modular debugger (mdb) is an extensible, low-level debugger useddeveloped on all operating systems that are based on the open sourcedby [[Solaris]]Sun operating system, such as [[IllumosMicrosystems]], for post-mortemthe analysisSolaris of7 anoperating application or kernelsystem. TheIt mdbis projectnow wasopen started inside of Sun tosourced, replaceunder the aging [[adb]]Common debuggerDevelopment (madeand byDistribution [[Steve BourneLicense]] (CDDL) that was previously used with the system. Mdb is backward-compatible with adb.

==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.

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==References==

*{{cite journal

| author = Mike Shapiro

| year = 2009

| month = February

| title = Purpose Built Languages

| journal = [[ACM Queue]]

| volume = 7

| issue = 1

| pages = 18-24

| doi =

| id =

| url = http://queue.acm.org/detail.cfm?id=1508217

| accessdate = 2011-04-02

}}