BUG: Re: gdb semi-broken in ydl4?
Albrecht Dreß
albrecht.dress at arcor.de
Mon Dec 20 04:45:07 MST 2004
Am 13.12.04 22:22 schrieb(en) Joseph E. Sacco, Ph.D.:
> Is it really a bug, or did the optimizer eliminate "r" completely? [I am
> too lazy to dumb the assembler code :-)].
>
> I have never had much success debugging optimized code for exactly this
> reason. The optimizer eliminates and moves things.
>
> Without "-O" gdb works as expected.
I meanwhile could reproduce the problem on Intel FC2. As the gdb info file
clearly states that it should work with gcc -O compiled stuff, I think I
should file a bugzilla...
As a related problem, the ddd and gdb rpm's coming with YDL4 sometimes
apparently interact badly - they complain about inaccessible memory and
refuse to run the application to be tested. Upgrading to self-compiled
versions of gdb 6.3 and ddd 3.3.10 fixes the problem.
Cheers, Albrecht.
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Albrecht Dreß - Johanna-Kirchner-Straße 13 - D-53123 Bonn (Germany)
Phone (+49) 228 6199571 - mailto:albrecht.dress at arcor.de
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