From: Al Niessner <Al.Niessner@jpl.nasa.gov>
To: gdb@sources.redhat.com
Subject: Setting watchpoints
Date: Thu, 17 Apr 2003 20:10:00 -0000 [thread overview]
Message-ID: <1050610199.24880.20.camel@morte.jpl.nasa.gov> (raw)
Platform information:
OS: Linux
Kernel: 2.4.19
gcc/g++: 3.2.2
gdb: 5.3
threads: 1 -- single threaded application
How do I set a watch point so that the debugger halts when memory at a
specific address is changed? There is no easy to define variable that I
can latch onto, but I do know its address. When I set a watch point to
this address -- 'watch 0x8559ff4' or 'watch *0x8559ff4' -- gdb just
sails by this memory being changed. If I set a conditional break point
just prior to the segmentation fault I can see the change and so can gdb
it just does not sense it with the watch. So, what am I doing wrong and
how do I get gdb to monitor a memory location and halt when it changes?
I have already searched the web (google) and did not find any solutions
there.
--
Al Niessner <Al.Niessner@jpl.nasa.gov>
Jet Propulsion Laboratory
All opinions stated above are mine and do not necessarily reflect those of JPL or NASA.
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next reply other threads:[~2003-04-17 20:10 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-04-17 20:10 Al Niessner [this message]
2003-04-17 20:20 ` Daniel Jacobowitz
2003-04-17 20:28 ` Al Niessner
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