[Info-vax] Debugging shareable images on Integrity

John Reagan johnrreagan at earthlink.net
Sat Apr 25 15:58:02 EDT 2009


"glen herrmannsfeldt" <gah at ugcs.caltech.edu> wrote in message 
news:gst64v$8vg$4 at naig.caltech.edu...
>
> Many debuggers work by modifying the code in memory.  Putting a
> trap instruction at a breakpoint, which then allows the debugger
> to take control, replace the instruction and put a trap after
> it, or execute it somewhere else.  In any case, that doesn't
> work so will with sharable code.
>

The VMS debugger can handle that.  I makes a private copy of the code page 
for your process and puts a break instruction in the correct slot in the 
bundle.

What is the IAS command line you use to compile the assembly code?

John 





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