Re: [cdt-debug-dev] Reusing CDT gdb-MI-interface code

[Haim Cohen <haim.cohen@xxxxxxxxxx>]

Thanks,

I think I will extend the classes supplied by the CDT to add another 
command.
I just need to get (file,line) from pc, pc from (file,line) and symbol 
information. ( I can take it from both gdb and elf-parser )
BTW, why does elf-parser execute addr2line to get line from address ?
All the information is in the elf debug section...
Yet, you need to create parser for verious debug formats, such as dwarf 
or coff.

Haim

Alain Magloire wrote:
> > Hi,
> >
> > I am using Eclipse as development platform for a DSP.
> >
> > I have a question related to my debugger:
> > Currently, I am using gdb as static information manager (line to pc, pc 
> > to line, etc) , and the DSP simulator as the target.
> > I have modified gdb to read the executable (ELF) and debug information 
> > (Dwarf2) and I verified that all the information I need can be retrieved 
> > from gdb. I did not implement the target support in gdb since I use it 
> > only for static information.
> > I wonder if I can reuse CDT code that interface gdb using the MI 
> > interface, to get static information.
> > (By 'static', I mean all the information available through gdb after 
> > loading the executable to debug, but before calling 'run' command.)
> >
> > I will be happy if someone can kindly point out the classes/packages in 
> > CDT I should use/extend .
> >
> > To make things clear, I will give few examples to the kind of interface 
> > I am looking for:
> > getSourceLocationFromPc( int pc ), getPcFromSourceLocation( File file, 
> > int line ), getLocalVarsInSourceLocation( File file, int line ).
>
>
> Good idea.
>
> We did not put this in, although it should be quite easy to add it.
> So far in the eclipse debug framework/UI there was no need for it.
>
> But if you can come up with a clean Interface(set of methods) of
> what you need we could work things and put it in the CDI and implement
> it in the GDB/MI plugin.  The annoying thing is that GDB/MI does not
> have any "mi" command for this, so we will have to send "cli" command
> and do weird parsing on the output.
>
>
>
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--


________________________________________
Haim Cohen
Software Engineer
haim.cohen@xxxxxxxxxx
Analog Devices
Israel
(972) - 9 - 9715 406