Re: [PATCH v2 2/5] devtool: code: Add source mapping for debug source files

adrian.freihofer
2024-02-22T13:00:27Z

On Wed, 2024-02-21 at 15:56 +0100, Enguerrand de Ribaucourt wrote:
>
>
> On 21/02/2024 15:12, Enguerrand de Ribaucourt wrote:
> >
> >
> > On 20/02/2024 10:01, adrian.freihofer@gmail.com wrote:
> > > On Mon, 2024-02-19 at 17:55 +0100, Enguerrand de Ribaucourt
> > > wrote:
> > > > When launching the debug configuration, the source files from
> > > > the
> > > > debug
> > > > rootfs were openened in the editor instead of the local
> > > > workspace
> > > > files.
> > > > We add an exception to properly map them to the file being
> > > > developed
> > > > and
> > > > compiled by the IDE integration. This also more closely matches
> > > > what
> > > > the
> > > > user would expect compared to native development.
> > > >
> > > > This is also true for the devtool fallback mode.
> > >
> > > This looks still wrong to me. If files from the rootfs are
> > > openend for
> > > a recipe which is in the workspace, the SDK is broken and we need
> > > to
> > > understand and fix that. This patch does not solve that, but will
> > > make
> > > it much harder to find the right solution for this issue.
> > Hi Adrian,
> >
> > This is affecting essentially the devtool fallback mode. Since it's
> > compiled through devtool, it's using the bitbake packaging
> > information.
> >
> > Steps to reproduce:
> >   - devtool modify powertop (autotools recipe, currently fallback)
> >   - devtool ide-sdk powertop [args...]
> >   - open the powertop sources workspace
> >   - run the debug launch configuration
> >   - initial breakpoint opens the rootfs-dbg main.cpp instead of the
> > current workspace
> >
> > This probably will get fixed for autotools with your specific class
> > support, but will remain for the fallback mode.
> >
> > Do we want to keep this source map, but only for the fallback mode?
> > Like
> > you say, it's kinda "cheating" the debug information, but since we
> > are
> > in fallback mode, the devtool packaging is supposed to be using the
> > sources from the workspace, so it's more like "hinting" at the
> > proper
> > source.
> It also affects more meson projects like lighttpd. The "hint" would
> still be valid given how it's built and deployed now. If you are
> still
> working on an alternative tinfoil deploy method, maybe it's not
> affected.

It looks like the devtool deploy-target step is missing. If you debug
packaged files this would behave like this. It's important to over
write the packaged files with the not packaged file from the image
folder. This is what the devtool deploy-target command does. It's
expected that this just happens, probably there is a bug in the
dependencies. Could you please try to run it explicit? Something like
this:

- devtool modify powertop (autotools recipe, currently fallback)
- devtool ide-sdk powertop [args...]

- devtool build powertop
- devtool deploy-target powertop

- open the powertop sources workspace
- run the debug launch configuration

I guess this would work as expected. The question is then: Why is the
deploy not executed?

Adrian

> > >
> > > Adrian
> > >
> > > >
> > > > Signed-off-by: Enguerrand de Ribaucourt
> > > > <enguerrand.de-ribaucourt@savoirfairelinux.com>
> > > > ---
> > > >   scripts/lib/devtool/ide_plugins/ide_code.py | 1 +
> > > >   scripts/lib/devtool/ide_sdk.py              | 1 +
> > > >   2 files changed, 2 insertions(+)
> > > >
> > > > diff --git a/scripts/lib/devtool/ide_plugins/ide_code.py
> > > > b/scripts/lib/devtool/ide_plugins/ide_code.py
> > > > index b2193130d2e..c063b7d0590 100644
> > > > --- a/scripts/lib/devtool/ide_plugins/ide_code.py
> > > > +++ b/scripts/lib/devtool/ide_plugins/ide_code.py
> > > > @@ -234,6 +234,7 @@ class IdeVSCode(IdeBase):
> > > >           if gdb_cross_config.image_recipe.rootfs_dbg:
> > > >               launch_config['additionalSOLibSearchPath'] =
> > > > modified_recipe.solib_search_path_str(
> > > >                   gdb_cross_config.image_recipe)
> > > > +            src_file_map[os.path.join("/usr/src/debug",
> > > > modified_recipe.pn, modified_recipe.pv)] = "${workspaceFolder}"
> > > >               src_file_map["/usr/src/debug"] = os.path.join(
> > > >                   gdb_cross_config.image_recipe.rootfs_dbg,
> > > > "usr",
> > > > "src", "debug")
> > > >           else:
> > > > diff --git a/scripts/lib/devtool/ide_sdk.py
> > > > b/scripts/lib/devtool/ide_sdk.py
> > > > index 14679744807..f292edbe25c 100755
> > > > --- a/scripts/lib/devtool/ide_sdk.py
> > > > +++ b/scripts/lib/devtool/ide_sdk.py
> > > > @@ -356,6 +356,7 @@ class RecipeModified:
> > > >               'PACKAGE_DEBUG_SPLIT_STYLE')
> > > >           self.path = recipe_d.getVar('PATH')
> > > >           self.pn = recipe_d.getVar('PN')
> > > > +        self.pv = recipe_d.getVar('PV')
> > > >           self.recipe_sysroot = os.path.realpath(
> > > >               recipe_d.getVar('RECIPE_SYSROOT'))
> > > >           self.recipe_sysroot_native = os.path.realpath(
> > >
> > Enguerrand de Ribaucourt
> >
> Enguerrand de Ribaucourt