GDB and exceptions

GDB and exceptions

[Boulais, Jeffrey M]

I'm trying to set a breakpoint on exceptions.  Whenever I try, I get a
'Couldn't open "a-except.adb": no such file or directory' message.  Does
anyone have a suggestion?



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Re: GDB and exceptions

[dennison]

In article <dbHQ2.754$36.263875@WReNphoon2>,
  jboulais@sikorsky.com (Boulais, Jeffrey M) wrote:
> I'm trying to set a breakpoint on exceptions.  Whenever I try, I get a
> 'Couldn't open "a-except.adb": no such file or directory' message.  Does
> anyone have a suggestion?

You mean when the exception occurs you get that? I get something very much
like that. But its no big deal, since I don't *want* to debug that file. I
can pretty much assume the Ada runtime is working correctly.

In the nice TK version of GDB, just select "Stacks" from the "Window" menu and
click on the lowest numbered level that contains your code. That should place
you on the line where the exception was raised.


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Re: GDB and exceptions

[David C. Hoos, Sr.]

Boulais, Jeffrey M wrote in message ...
>I'm trying to set a breakpoint on exceptions.  Whenever I try, I get a
>'Couldn't open "a-except.adb": no such file or directory' message.  Does
>anyone have a suggestion?
>
add a line in your .gdbinit file:

directory <adainclude>


where <adainclude> is the full pat the gnat's adainclude directory
in your environment.

For example, on my NT machine, I have this line in .gdbinit:

directory c:/GNAT/lib/gcc-lib/pentium-mingw32msv/2.8.1/adainclude/

This directory can usually be obtained by typing "gcc -v" and
replacing the "specs" at the end of the line of output with
"adainclude"

Re: GDB and exceptions

[Stephen Leake]

dennison@telepath.com writes:

> In article <dbHQ2.754$36.263875@WReNphoon2>,
>   jboulais@sikorsky.com (Boulais, Jeffrey M) wrote:
> > I'm trying to set a breakpoint on exceptions.  Whenever I try, I get a
> > 'Couldn't open "a-except.adb": no such file or directory' message.  Does
> > anyone have a suggestion?
> 
> You mean when the exception occurs you get that? I get something very much
> like that. But its no big deal, since I don't *want* to debug that file. I
> can pretty much assume the Ada runtime is working correctly.
> 
> In the nice TK version of GDB, just select "Stacks" from the "Window" menu and
> click on the lowest numbered level that contains your code. That should place
> you on the line where the exception was raised.

And in the even nicer command line gdb under emacs (no bias here :),
just type "up" to go up one stack level, or "where" to see the full
list, then "frame n" to get to your code.

-- Stephe

Re: GDB and exceptions

[Boulais, Jeffrey M]

David Hoos,

   I don't have a .gdbinit file.  I'm working under NT, are you working on a
Unix based system?  Your fix worked,
but I have to pass that info in from the command line.



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Re: GDB and exceptions

[David C. Hoos, Sr.]

Boulais, Jeffrey M <jboulais@sikorsky.com> wrote in message
news:zDsR2.647$dd.259780@WReNphoon3...
> David Hoos,
>
>    I don't have a .gdbinit file.  I'm working under NT, are you working on
a
> Unix based system?  Your fix worked,
> but I have to pass that info in from the command line.
>
I work in both environments, and .gdbinit works in both.  It saves a lot of
typing to
use .gdbinit.

I normally work in the tcsh shell on WinNT, because it makes for less
"mental gear shifting" when going back and forth between UNIX and NT.

However, .gdbinit works in the Microsoft CommandPrompt shell, as well.

Re: GDB and exceptions

[Stephen Leake]

"David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> writes:

> Boulais, Jeffrey M <jboulais@sikorsky.com> wrote in message
> news:zDsR2.647$dd.259780@WReNphoon3...
> > David Hoos,
> >
> >    I don't have a .gdbinit file.  I'm working under NT, are you working on
> a
> > Unix based system?  Your fix worked,
> > but I have to pass that info in from the command line.
> >
> I work in both environments, and .gdbinit works in both.  It saves a lot of
> typing to
> use .gdbinit.

Jeffrey: the point here is that you create your own .gdbinit. It can
contain any commands that you would type at the gdb prompt.