Path: utzoo!attcan!uunet!tut.cis.ohio-state.edu!ucsd!helios.ee.lbl.gov!pasteur!canuck.Berkeley.EDU!luciano
From: luciano@canuck.Berkeley.EDU (Luciano Lavagno)
Newsgroups: comp.unix.questions
Subject: Debugger watchpoints in UNIX ?
Keywords: debug watchpoint
Message-ID: <22567@pasteur.Berkeley.EDU>
Date: 2 Mar 90 19:18:52 GMT
Sender: news@pasteur.Berkeley.EDU
Reply-To: luciano@canuck.Berkeley.EDU (Luciano Lavagno)
Organization: UC Berkeley IC CAD Group
Lines: 11


 
Has anybody heard of an efficient implementation of watchpoints, i.e. 
breakpoints activated whenever an arbitrary position in memory (e.g. a 
field of a dynamically allocated structure) changes value ?
Both dbx and saber can do something similar, but with horrendous 
performance penalty ("stop address" commands).
I would like something similar to the VMS SET WATCH command... but I
strongly suspect that the UNIX debugging paradigm inherently forbids
such a feature.
Thanks !