Re: GDB cannot find line info

[Robert Bu <robert.bu@gmail.com>]

Hi Christophe,

Maybe you can try the CVS head or the 7.0 preview. I've once met the
same problem. And the problem is gone in CVS. Actually the problem is
fixed by the newly added function "watch_main_source_file_lossage
(void)" in buildsym.c

Robert.

>
>
> Hello,
>
> I have found a bug in our compiler (Open64 for ST200), which I have
> fixed to make it correctly output the directory table related to
> debug_line info.
> But now, I have many regressions in the GDB testsuite (6.8), the first
> one being in break.exp: now the command "break break.c:103" returns
> 'No line 103 in file "break.c"'
>
> I have dumped the dwarf debug_line info with 'dwarfdump -l' and
> 'readelf -wl', but could not find anything suspect:
> - with dwarfdump, the only difference is in the directory path
> - with readelf, the directory tables contain one more entry (absolute
> path to gdb.base) and the file table has dir numbers updated
> accordingly. (obviously, the length and offset of the corresponding
> sections are different)
>
> Is there any GDB internal command I could use to understand the problem?
>
> Thanks,
>
> Christophe.
>