GDB C/C++ Level Souce Code

[Joel Sherrill]

On Mon, Feb 20, 2017 at 8:54 AM, Joey DiGiorgio <digiorgiojoey at gmail.com>
wrote:

> Thanks Gedare and Joel for the responses.
>
> I have debugged with QEMU in the past, so the only thing throwing me
> off was the symbol table part. I was using the .ralf file format, but
> I will try the .exe and see if I get results.
>
>
The .ralf is for downloading to the target so often won't have symbols.
In other real cases, you may be debugging code that is burned into Flash.

You can use a gdb command like symbol-file XXX to tell gdb where to
read the symbols from.

--joel

> - Joey D.
>
> On Sun, Feb 19, 2017 at 8:08 AM, Gedare Bloom <gedare at rtems.org> wrote:
> > Using GDB to debug RTEMS works basically like debugging a normal
> > executable. You should specify the executable name to GDB on the
> > command line or when you start GDB using 'file' or 'symbol-file'
> > commands. This will give you line numbers and source code.
> >
> > In order to debug inside Qemu you need to attach gdb to qemu usually
> > by something like 'target remote localhost 7000' in case qemu is
> > listening on port 7000 for a gdb connection. On a local box, you can
> > also usually use the --pid x command line flag of gdb to connect it to
> > the process having pid x.
> >
> > The --enable-rtems-debug will turn on some additional code inside
> > RTEMS to increase debug checks/asserts that are used. It should not be
> > necessary in order to actually debug, since the -g option usually is
> > given to gcc by the BSP's makefile.
> >
> > Gedare
> >
> > On Fri, Feb 17, 2017 at 3:54 PM, Joey DiGiorgio <digiorgiojoey at gmail.com>
> wrote:
> >> I am able to debug an RTEMS application while viewing the assembly
> >> language code, but is there any way to debug an RTEMS application and
> >> break, list, etc. the C/C++ level code?
> >>
> >> I tried building everything with the --enable-rtems-debug flag, but I
> >> still get a message about "symbol tables" not being loaded.
> >>
> >> To start I am just working with the "testsuites/samples/hello"
> >> application in either QEMU or the GDB simulator.
> >>
> >> - Joey D.
> >> _______________________________________________
> >> users mailing list
> >> users at rtems.org
> >> http://lists.rtems.org/mailman/listinfo/users
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