[Buildroot] [PATCH] store debug information in $HOST_DIR/lib/debug

[Yann E. MORIN]

All,

On 2019-02-04 19:19 +0100, Thomas Petazzoni spake thusly:
> On Mon, 4 Feb 2019 19:05:26 +0100
> Thomas De Schampheleire <patrickdepinguin+buildroot at gmail.com> wrote:
> 
> > The difference that this patch brings is that now also binaries can be
> > debugged based from the target directory, i.e. you don't need to find
> > the binary in output/build/foo-version/somewhere/.
> > 
> > Today, the staging directory only contains packages that explicitly
> > set FOO_INSTALL_STAGING = YES, which is typically only done for
> > libraries.
> 
> Yes, but:
> 
> 1) Typically the binary being debugged has to be passed explicitly as
>    gdb argument, it's not automatically "inferred" by gdb. So having it
>    in output/build/foo-<version>/somewhere/ or elsewhere doesn't make a
>    huge difference.
> 
> 2) If for convenience reasons we want to make all binaries with
>    debugging symbols easily available, then the long term solution we
>    have been discussing for a while is to install all packages to
>    STAGING_DIR. So basically I'm more for extending STAGING_DIR to
>    contain binaries rather than to create a partial copy of STAGING_DIR
>    in HOST_DIR/lib/debug.

I side with Thomas P. on that one.

We've had this discussion a few times already, and the conslusion was to
try and install everything in staging.

Then, target can be created at the end, by copying staging/ to target/
and do the target-finalize step on that copy.

Or so that is the main idea, and it can be refined to account for subtle
details, such as the on-going per-package directory and top-level
parallel build...

Regards,
Yann E. MORIN.

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