Advanced Debugger

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Original author(s)Stephen R. Bourne
Developer(s)AT&T Bell Laboratories
Initial releaseJanuary 1979; 45 years ago (1979-01)
Operating systemUnix and Unix-like

The advanced debugger adb is a debugger that first appeared in Seventh Edition UNIX.[1] It is found on Solaris, HP-UX, SCO and Venix. It is the successor of a debugger called db.


The initial version was written by Stephen R. Bourne.[2]

ADB was provided with Solaris until Solaris 8 (2000), when it was replaced by the Modular Debugger (mdb) with Solaris 8 (2000) and the ADB command-line interface now is emulated by mdb when it is called as adb. Mdb has become OpenSource with OpenSolaris.[3] The Solaris kernel debugger kadb that was introduced with SunOS-3.5 (1986) is a minor variant of adb.

See also[edit]


  1. ^ adb(1) – Version 7 Unix Programmer's Manual
  2. ^ McIlroy, M. D. (1987). A Research Unix reader: annotated excerpts from the Programmer's Manual, 1971–1986 (PDF) (Technical report). CSTR. Bell Labs. 139. Archived from the original (PDF) on 2023-07-30.
  3. ^ "Solaris performance and tools DTrace and MDB techniques for Solaris 10 and OpenSolaris 0131568191, 9780131568198". Retrieved 2023-06-06.

External links[edit]