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Re: list/edit command on frame with available symtab


Jason Kraftcheck wrote:
Daniel Jacobowitz wrote:

On Thu, Feb 23, 2006 at 12:40:11PM -0600, Jason Kraftcheck wrote:


If there is no symtab for the current frame, traverse up the stack
looking for a frame with a symtab.  This may at first seem like a
gratuitous feature (and perhaps it is), but I find it is convenient when
working with an application that uses third-party libraries.  Typically
whatever code I'm working on has debug symbols while whatever
third-party code I'm calling does not.  And I'm much more interested in
seeing where the process was in my code at the time a fault occurred.  I
don't think this change will be a problem for anyone, as the previous
behavior was to print an error if there was no symtab.


2006-02-23 Jason Kraftcheck <kraftche@cae.wisc.edu>


	* stack.c (set_current_sal_from_frame): If list or edit command
      is invoked for a frame without a symtab, move up the stack to
      the neareast frame with a symtab.


I'm not sure this is a good idea, but in any case, is that really
what's going on? I already get successful "list", and edit opens a file
named "unknown", if the parent frame has line info.



With this patch, I get what I expect.  Without this patch, stopping due
to a sigabrt, edit and list both show whatever was the previous valid
sal, which is probably a bug.  After moving up or down a frame, they
both report an error (in the edit case, editing a file called "unknown").

I've never tried it with edit, and I haven't tried it recently with list, but my recollection is in line with Daniel's comment -- afaik, it already works, at least for list. With what version and configuration of gdb do you find it to be broken?



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