Re: native gdb

[Mahesh Bodapati <maheshbodapati212@gmail.com>]

Thanks Simon,
>I'm not 100% sure I understand your question, but I assume you want to
>cross-compile GDB on an x86-64 build machine, so that GDB runs and
>debugs natively on a Microblaze Linux system.

build != host == target (“cross-native”)

native toolchain, as it targets the same machine as it runs on. But it is
build on another machine.


>GDB already supports Microblaze, see files gdb/microblaze* in the tree.
>However, we didn't have contributions that touched those files for a
>while, so it's possible these have bitrotted a little bit.

I didn't see any issues while I compile cross-compile gdb which runs on x86
and I assume 'microblaze-linux-nat.c' has to be ported/added as similar to
other target to make it run on a target natively and also files to be
ported for MicroBlaze at " gdb/nat/"

Am I correct here? Please help me understand in detail.




On Mon, Apr 18, 2022 at 7:16 PM Simon Marchi <simon.marchi@polymtl.ca>
wrote:

>
>
> On 2022-04-18 02:07, Mahesh Bodapati via Gdb wrote:
> > Hi All,
> > Target-linux-nat.c is the file for supporting native gdb?
> > for instance, I want to build a native gdb for MicroBlaze.
> >
> > '--host=microblazeel-xilinx-linux-gnu'
> > '--target=microblazeel-xilinx-linux-gnu'
> >
> >
> >    1. what are steps for building native gdb which are specific to
> >    configure and flags.
>
> I'm not 100% sure I understand your question, but I assume you want to
> cross-compile GDB on an x86-64 build machine, so that GDB runs and
> debugs natively on a Microblaze Linux system.
>
> At the simplest, it will be something like:
>
>   .../configure --host=microblazeel-xilinx-linu-gnu --sysroot=<path to
> sysroot>
>   make
>
> But you will probably hit more problems that are typical of
> cross-compilation (not specific to GDB), like making sure you have all
> GDB dependencies built for Microblaze and installed in your sysroot.
>
> >    2. what files needs to be ported? and is there any guide for porting
> >    native gdb ?
>
> GDB already supports Microblaze, see files gdb/microblaze* in the tree.
> However, we didn't have contributions that touched those files for a
> while, so it's possible these have bitrotted a little bit.
>
> Simon
>