This is the mail archive of the mailing list for the GDB project.

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

Re: catchpoint - bptype

On Mon, Apr 28, 2008 at 01:28:57PM -0400, Aleksandar Ristovski wrote:
> I agree, but without knowing the long term intent it is hard to
> tell. At the moment it introduces slight complication since only
> "catch" and "throw" use ops and nothing else (and, therefore, take
> different printing route than anything else). I can see how
> breakpoint_ops can be very useful, if used consistently - it could
> be used to, for example, get rid of the switch statements you
> mentioned above.

Why do you assume there is a long term intent? :-)

I don't want to add new elements to those switches unless they are
really for things that do not behave like breakpoints.  I'd be happy
to see patches removing existing cases.  That's why, when I wrote new
code to catch C++ exceptions, I used breakpoint_ops.

> (gdb) info b
> Num     Type           Disp Enb Address    What
> 2       breakpoint     keep y   0xb7f75896 exception catch
> 3       catch fork     keep y
> (gdb)
> See how "fork" is cool and "catch" isn't. "Catch" looks just like
> any other breakpoint; the only diff. is in "What" field, while catch
> fork is clearly a catchpoint.

If you can convince us it matters, we can change the output.
Personally I think "breakpoint on exception catch" is a perfectly
reasonable thing to call it - that's what it is.  The fork catchpoints
are not like a breakpoint, though, since they do not correspond to
any code address - just an OS event.

Daniel Jacobowitz

Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]