Re: [OE-core] [PATCH v2 9/9] oe-selftest: devtool ide-sdk: add clang/LLDB test

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Sun Mar 22, 2026 at 4:13 PM CET, Adrian Freihofer via lists.openembedded.org wrote:
> From: Adrian Freihofer <adrian.freihofer@siemens.com>
>
> Add test_devtool_ide_sdk_code_cmake_clang to verify the full devtool
> ide-sdk workflow for a cmake recipe built with clang.  Unlike the gcc
> variant the clang recipe uses lldb-server for remote debugging and
> CodeLLDB (vadimcn.vscode-lldb) as the VS Code debug adapter.
>
> The test covers:
> - devtool modify + devtool ide-sdk with ide=code
> - cmake preset compilation and CTest execution (same as the gcc test)
> - extensions.json recommends vadimcn.vscode-lldb
> - launch.json uses "type": "lldb" (CodeLLDB) instead of "type": "cppdbg"
> - End-to-end lldb --batch remote debugging session via lldb-server
>   platform mode running on qemu
>
> Supporting changes:
> - _write_bb_config: accept optional extra_packages parameter so the
>   clang test can add lldb-server to IMAGE_INSTALL
> - _verify_launch_json_lldb: new helper that validates the CodeLLDB
>   launch.json structure (type, initCommands, program, cwd, preLaunchTask)
> - _lldb_server_debugging_once: new helper that reads the preLaunchTask
>   SSH command from tasks.json, starts lldb-server on the target, and
>   runs lldb --batch to verify a breakpoint at main is hit
> - _verify_service_running: use pgrep with exact regex (^name$) for exact
>   process name matching; without that, pgrep would also match
>   cmake-example-clang (truncated to 'cmake-example-c' in
>   /proc/pid/comm) when checking for cmake-example, returning two PIDs
>   and failing the isdigit() assertion
>
> Signed-off-by: Adrian Freihofer <adrian.freihofer@siemens.com>
> ---

Hi Adrian,

Thanks for your patch.

I believe the added test is failing on the autobuilder:

2026-03-24 13:25:52,674 - oe-selftest - INFO - devtool.DevtoolIdeSdkTests.test_devtool_ide_sdk_code_cmake_clang (subunit.RemotedTestCase)
2026-03-24 13:25:52,674 - oe-selftest - INFO -  ... FAIL
...
2026-03-24 15:55:22,676 - oe-selftest - INFO - FAIL: devtool.DevtoolIdeSdkTests.test_devtool_ide_sdk_code_cmake_clang (subunit.RemotedTestCase)
2026-03-24 15:55:22,676 - oe-selftest - INFO - ----------------------------------------------------------------------
2026-03-24 15:55:22,676 - oe-selftest - INFO - testtools.testresult.real._StringException: Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/devtool.py", line 3864, in test_devtool_ide_sdk_code_cmake_clang
    self._lldb_server_debugging_once(tempdir, qemu, recipe_name,
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                                     DevtoolIdeSdkTests.MAGIC_STRING_ORIG)
                                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/layers/openembedded-core/meta/lib/oeqa/selftest/cases/devtool.py", line 3805, in _lldb_server_debugging_once
    r = runCmd(lldb_batch, output_log=self._cmd_logger)
  File "/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/layers/openembedded-core/meta/lib/oeqa/utils/commands.py", line 214, in runCmd
    raise AssertionError("Command '%s' returned non-zero exit status %d:\n%s" % (command, result.status, exc_output))
...
(lldb) b main
Breakpoint 1: where = cmake-example-clang`main + 48 at cpp-example.cpp:19:5, address = 0x0000000000001750
(lldb) run
/tmp/lldb_server_1234_usr-bin-cmake-example-clang_multi/cmake-example-clang: error while loading shared libraries: libcmake-example-clang-lib.so.1: cannot open shared object file: No such file or directory
Process 335 launched: '/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/build-st-2935310/tmp/work/cortexa57-poky-linux/cmake-example-clang/1.0/image/usr/bin/cmake-example-clang' (aarch64)
Process 335 exited with status = 127 (0x0000007f)
(lldb) continue
error: Process must be launched.

https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/3606
https://autobuilder.yoctoproject.org/valkyrie/#/builders/48/builds/3389

Can you have a look at the issue?

Thanks,
Mathieu

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com