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Improve the previous commit:
- log an error if some assumptions are not true
- Use TARGET_DBGSRC_DIR variable
- Do the same for ide none
Why the additional source mapping is required:
For example the cmake-example recipe refers to sources like this:
./recipe-sysroot-native/usr/bin/x86_64-poky-linux/x86_64-poky-linux-readelf \
-wi image/usr/bin/cmake-example | grep -B1 DW_AT_comp_dir
...
<560> DW_AT_name : (indirect line string, offset: 0x1da):
/usr/src/debug/cmake-example/1.0/oe-local-files/cpp-example.cpp
...
Another example is powertop:
./recipe-sysroot-native/usr/bin/x86_64-poky-linux/x86_64-poky-linux-readelf \
-wi image/usr/sbin/powertop | grep -B1 DW_AT_comp_dir
...
<561> DW_AT_name : (indirect line string, offset: 0x1da):
/usr/src/debug/powertop/2.15/src/devlist.cpp
...
For recipes with local files this works. The oe-local-files folder is
not available in the rootfs-dbg and therefore the sources are first
found in the workspace folder. GDB searches for source files in various
places:
https://sourceware.org/gdb/current/onlinedocs/gdb.html/Source-Path.html
However, for the powertop example the sources opened in the editor are
from the rootfs-dbg instead of from the workspace.
Bitbake calls the compiler with
-fmacro-prefix-map=${S}=${TARGET_DBGSRC_DIR}
where TARGET_DBGSRC_DIR defaults to "/usr/src/debug/${PN}/${PV}".
A source map which maps the recipe specific path from TARGET_DBGSRC_DIR
to the workspace fixes this.
The already existing source map for /usr/src/debug applies for all other
recipes. It finds the sources (read only) in the rootfs-dbg folder.
(From OE-Core rev: 06601632c1879cb80276f9b36de91fb7808311a5)
Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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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.
(From OE-Core rev: 24db2b8d0d7104960c1cdb2c7ee5216c830a6754)
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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If multiple recipes are processed at once, the launch.json and the
tasks.json of the second recipe contains also the configurations for the
binaries of the first recipe.
Example:
devtool ide-sdk powertop cmake-example oe-selftest-image
generated a launch and a tasks configuration for the cmake-example
recipe which also offers debugging the powertop binary.
(From OE-Core rev: 63986b2c40d90fe96cdc6a46aa649efcf17f6ac2)
Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The compile_commands.json file output by meson uses the compiler as if
present in the $PATH. However, when using an IDE, the $PATH used by
bitbake is not there.
The vscode-cpptools now allows to define the compilerPath in addition
to replace the one from compile_commands.json.
(From OE-Core rev: d9f5c27c8beee07c7cbbed11f5d45058e7315846)
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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When debugging or browsing files, the user may fall into external
sources from other packages in the sysroot or dbg-rootfs. Modifying them
will only lead to confusion since they will be overwritten by Yocto. The
user should open them in a separate devtool modify session if they want
to make changes. Meanwhile, we should prevent write access to them.
(From OE-Core rev: 8a95ad9aecb81732c865e00a987bb8bd3d6cb91d)
Signed-off-by: Enguerrand de Ribaucourt <enguerrand.de-ribaucourt@savoirfairelinux.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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The new devtool ide plugin provides the eSDK and configures an IDE to
work with the eSDK. In doing so, bitbake should be used to generate the
IDE configuration and update the SDK, but it should no longer play a
role when working on the source code. The work on the source code should
take place exclusively with the IDE, which, for example, calls cmake
directly to compile the code and execute the unit tests from the IDE.
The plugin works for recipes inheriting the cmake or the meson bbclass.
Support for more programming languages and build tools may be added in
the future.
There are various IDEs that can be used for the development of embedded
Linux applications. Therefore, devtool ide-sdk, like devtool itself,
supports plugins to support IDEs.
VSCode is the default IDE for this first implementation. Additionally,
some generic helper scripts can be generated with --ide none instead of
a specific IDE configuration. This can be used for any IDE that
supports calling some scripts.
There are two different modes supported:
- devtool modify mode (default):
devtool ide-sdk configures the IDE to manage the build-tool used by the
recipe (e.g. cmake or meson). The workflow looks like:
$ devtool modify a-recipe
$ devtool ide-sdk a-recipe a-image
$ code "$BUILDDIR/workspace/sources/a-recipe"
Work in VSCode, after installing the proposed plugins
Deploying the artifacts to the target device and running a remote
debugging session is supported as well.
This first implementation still calls bitbake and devtool to copy the
binary artifacts to the target device. In contrast to compiling,
installation and copying must be performed with the file rights of the
target device. The pseudo tool must be used for this. Therefore
bitbake -c install a-recipe && devtool deploy-target a-recipe
are called by the IDE for the deployment. This might be improved later
on.
Executing the unit tests out of the IDE is supported via Qemu user if
the build tool supports that. CMake (if cmake-qemu.bbclass is
inherited) and Meson support Qemu usermode.
- Shared sysroots mode: bootstraps the eSDK with shared sysroots for
all the recipes passed to devtool ide-sdk. This is basically a wrapper
for bitbake meta-ide-support && bitbake build-sysroots. The workflow
looks like:
$ devtool ide-sdk --share-sysroots a-recipe another-recipe
vscode where/the/sources/are
If the IDE and the build tool support it, the IDE gets configured to
offer the cross tool-chain provided by the eSDK. In case of VSCode and
cmake a cmake-kit is generated. This offers to use the cross
tool-chain from the UI of the IDE.
Many thanks to Enguerrand de Ribaucourt for testing and bug fixing.
(From OE-Core rev: 3f8af7a36589cd05fd07d16cbdd03d6b3dff1f82)
Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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