Re: [RFA] Add interface for registering JITed code

Ulrich Weigand
2009-07-24T11:31:15Z

Tom Tromey wrote:

> >>>>> "Reid" == Reid Kleckner <rnk@mit.edu> writes:
>
> Reid> So that means we need LLVM to generate dwarf debug info, and we
> Reid> need to register it with GDB.
>
> Nice.
>
> Your overall approach seems good to me.

I agree, this looks good to me as well.

> Reid> + /* Hack to work around the fact that BFD does not take ownership of the
> Reid> + memory for files allocated in memory. */
>
> Is it possible to fix this directly in BFD? Since...
>
> Reid> + bim = (struct bfd_in_memory *) objfile->obfd->iostream;
>
> ... this is definitely fishy :-)

I'd suggest that Reid instead use bfd_openr_iovec to access an ELF image
directly in inferior memory, as is currently done e.g. by
remote.c:remote_bfd_open
spu-linux-nat.c:spu_bfd_open
solib-spu.c:spu_bfd_open (is about to be introduced by the patch
http://sourceware.org/ml/gdb-patches/2009-07/msg00546.html)
This works without BFD changes or directly accessing BFD internals ...

Bye,
Ulrich

--
Dr. Ulrich Weigand
GNU Toolchain for Linux on System z and Cell BE
Ulrich.Weigand@de.ibm.com