Test debugging does not work when vs code is attached to docker container

[MichaelMakarov]

Brief Issue Summary

I use vs code for remote development in docker container. c/c++ extensions pack, cmake tools and dev containers are used for this purpose. There is an unit test in cmake project added for ctest. I have tested two scenarious: 1) I have built the project locally on host machine and have succesfully run in debugging mode from test explorer 2) I have built the project in docker container and have failed to debug the test with output "launch property program is missing or empty". I have used this launch.json in both cases: { "version": "0.2.0", "configurations": [ { "name": "(ctest) Launch", "type": "cppdbg", "request": "launch", // Resolved by CMake Tools: "cwd": "${cmake.testWorkingDirectory}", "program": "${cmake.testProgram}", "args": [ "${cmake.testArgs}"], } ] }

CMake Tools Diagnostics

{ "os": "linux", "vscodeVersion": "1.94.2", "cmtVersion": "1.18.42", "configurations": [ { "folder": "/home/docker_bind/projects", "cmakeVersion": "3.10.2", "configured": true, "generator": "Unix Makefiles", "usesPresets": false, "compilers": { "C": "/usr/bin/gcc", "CXX": "/usr/bin/g++" } } ], "cpptoolsIntegration": { "isReady": true, "hasCodeModel": true, "activeBuildType": "Debug", "buildTypesSeen": [ "Debug" ], "requests": [], "responses": [], "partialMatches": [], "targetCount": 12, "executablesCount": 11, "librariesCount": 1, "targets": [ { "name": "test_cond_var", "type": "EXECUTABLE" }, { "name": "map", "type": "EXECUTABLE" }, { "name": "syscall", "type": "EXECUTABLE" }, { "name": "format_arguments", "type": "EXECUTABLE" }, { "name": "queue_concurrent_performance", "type": "EXECUTABLE" }, { "name": "queue_lib", "type": "INTERFACE_LIBRARY" }, { "name": "queue_consequent_performance", "type": "EXECUTABLE" }, { "name": "queue_concurrent_robustness", "type": "EXECUTABLE" }, { "name": "allocator_test_exe", "type": "EXECUTABLE" }, { "name": "tagged_ptr_128_test", "type": "EXECUTABLE" }, { "name": "comparison_exe", "type": "EXECUTABLE" }, { "name": "address_exe", "type": "EXECUTABLE" } ] }, "settings": [ { "communicationMode": "automatic", "useCMakePresets": "auto", "configureOnOpen": true } ] }

Debug Log

2024-11-07T12:42:52.154Z [debug] [expand] expanding cmake 2024-11-07T12:42:52.238Z [info] [proc] Executing command: /usr/bin/cmake --version 2024-11-07T12:42:52.258Z [info] [proc] Executing command: /usr/bin/cmake -E capabilities 2024-11-07T12:42:52.335Z [debug] [main] Safe constructing new CMakeProject instance 2024-11-07T12:42:52.337Z [debug] [variant] Constructing VariantManager 2024-11-07T12:42:52.338Z [debug] [main] Constructing new CMakeProject instance 2024-11-07T12:42:52.339Z [debug] [main] Starting CMake Tools second-phase init 2024-11-07T12:42:52.339Z [debug] [expand] expanding ${workspaceFolder} 2024-11-07T12:42:52.389Z [info] [variant] Loaded new set of variants 2024-11-07T12:42:52.391Z [debug] [kit] Reading kits file /home/docker_bind/.local/share/CMakeTools/cmake-tools-kits.json 2024-11-07T12:42:52.412Z [info] [kit] Successfully loaded 1 kits from /home/docker_bind/.local/share/CMakeTools/cmake-tools-kits.json 2024-11-07T12:42:52.412Z [debug] [expand] expanding /usr/bin/gcc 2024-11-07T12:42:52.413Z [debug] [expand] expanding /usr/bin/g++ 2024-11-07T12:42:52.413Z [debug] [expand] expanding cmake 2024-11-07T12:42:52.418Z [debug] [kit] Not reading non-existent kits file: /home/docker_bind/projects/.vscode/cmake-kits.json 2024-11-07T12:42:52.419Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:42:52.421Z [debug] [main] Injecting new Kit into CMake driver 2024-11-07T12:42:52.476Z [debug] [main] CMakeProject instance initialization complete. 2024-11-07T12:42:52.614Z [debug] [extension] Configuring workspace on open /home/docker_bind/projects 2024-11-07T12:42:52.615Z [debug] [expand] expanding cmake 2024-11-07T12:42:52.719Z [debug] [main] Starting new CMake driver 2024-11-07T12:42:52.719Z [debug] [main] Starting CMake driver 2024-11-07T12:42:52.719Z [debug] [main] Using generator from user configuration: Unix Makefiles 2024-11-07T12:42:52.720Z [debug] [driver] Initializing base driver using kit 2024-11-07T12:42:52.720Z [debug] [kit] Testing GCC binary: /usr/bin/gcc 2024-11-07T12:42:52.720Z [info] [proc] Executing command: /usr/bin/gcc -v 2024-11-07T12:42:52.727Z [debug] [kit] Detected GCC compiler: /usr/bin/gcc 2024-11-07T12:42:52.727Z [debug] [driver] CMakeDriver Kit set to GCC 7.5.0 x86_64-linux-gnu 2024-11-07T12:42:52.728Z [debug] [kit] The environment for kit 'GCC 7.5.0 x86_64-linux-gnu': { "USER": "bamboo", "HOSTNAME": "usrp-build", "HOME": "/home/docker_bind", "container": "podman", "TERM": "xterm", "PATH": "/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", "VSCODE_AGENT_FOLDER": "/home/docker_bind/.vscode-server", "DEBIAN_FRONTEND": "noninteractive", "SHELL": "/bin/bash", "PWD": "/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy", "TZ": "Europe/Moscow", "VSCODE_CWD": "/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy", "VSCODE_NLS_CONFIG": "{\"userLocale\":\"en\",\"osLocale\":\"en\",\"resolvedLanguage\":\"en\",\"defaultMessagesFile\":\"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/out/nls.messages.json\",\"locale\":\"en\",\"availableLanguages\":{}}", "VSCODE_HANDLES_SIGPIPE": "true", "VSCODE_AMD_ENTRYPOINT": "vs/workbench/api/node/extensionHostProcess", "VSCODE_HANDLES_UNCAUGHT_ERRORS": "true", "REMOTE_CONTAINERS_SOCKETS": "[\"/tmp/vscode-ssh-auth-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock\",\"/tmp/.X11-unix/X21\",\"/home/docker_bind/.gnupg/S.gpg-agent\"]", "REMOTE_CONTAINERSIPC": "/tmp/vscode-remote-containers-ipc-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock", "SHLVL": "1", "": "/bin/cat", "SSH_AUTH_SOCK": "/tmp/vscode-ssh-auth-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock", "DISPLAY": ":21", "REMOTE_CONTAINERS_DISPLAY_SOCK": "/tmp/.X11-unix/X21", "REMOTE_CONTAINERS": "true", "BROWSER": "/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/bin/helpers/browser.sh", "ELECTRON_RUN_AS_NODE": "1", "VSCODE_IPC_HOOK_CLI": "/tmp/vscode-ipc-18b5dcba-e058-44d3-bcf3-7f72a832c9e7.sock", "VSCODE_L10N_BUNDLE_LOCATION": "", "APPLICATION_INSIGHTS_NO_DIAGNOSTIC_CHANNEL": "1" } 2024-11-07T12:42:52.728Z [debug] [cms-driver] Run doRefreshExpansions 2024-11-07T12:42:52.729Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:42:52.730Z [debug] [expand] expanding ${workspaceFolder}/build 2024-11-07T12:42:52.735Z [debug] [cms-client] Started new CMake Server instance with PID 111955 2024-11-07T12:42:53.738Z [debug] [cache] Reading CMake cache file /home/docker_bind/projects/build/CMakeCache.txt 2024-11-07T12:42:53.742Z [debug] [cache] Parsing CMake cache string 2024-11-07T12:42:53.751Z [debug] [driver] Setting new variant Debug 2024-11-07T12:42:53.751Z [debug] [cms-driver] Run doRefreshExpansions 2024-11-07T12:42:53.751Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:42:53.752Z [debug] [expand] expanding ${workspaceFolder}/build 2024-11-07T12:42:53.761Z [debug] [cms-client] Started new CMake Server instance with PID 111974 2024-11-07T12:42:54.766Z [debug] [cache] Reading CMake cache file /home/docker_bind/projects/build/CMakeCache.txt 2024-11-07T12:42:54.771Z [debug] [cache] Parsing CMake cache string 2024-11-07T12:42:54.788Z [info] [main] Configuring project: projects 2024-11-07T12:42:54.788Z [debug] [main] Saving open files before configure/build 2024-11-07T12:42:54.840Z [debug] [cms-driver] Run doRefreshExpansions 2024-11-07T12:42:54.840Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:42:54.841Z [debug] [expand] expanding ${workspaceFolder}/build 2024-11-07T12:42:54.842Z [debug] [driver] Start configure 2024-11-07T12:42:54.842Z [debug] [driver] Running pre-configure checks and steps 2024-11-07T12:42:54.843Z [debug] [driver] Using compilers in GCC 7.5.0 x86_64-linux-gnu for configure 2024-11-07T12:42:54.843Z [debug] [expand] expanding -DCMAKE_EXPORT_COMPILE_COMMANDS=1 2024-11-07T12:42:54.844Z [debug] [expand] expanding --no-warn-unused-cli 2024-11-07T12:42:54.844Z [debug] [expand] expanding -DCMAKE_BUILD_TYPE:STRING=Debug 2024-11-07T12:42:54.844Z [debug] [expand] expanding -DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=TRUE 2024-11-07T12:42:54.844Z [debug] [expand] expanding -DCMAKE_C_COMPILER:FILEPATH=/usr/bin/gcc 2024-11-07T12:42:54.844Z [debug] [expand] expanding -DCMAKE_CXX_COMPILER:FILEPATH=/usr/bin/g++ 2024-11-07T12:42:54.844Z [debug] [cms-driver] Run doRefreshExpansions 2024-11-07T12:42:54.845Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:42:54.845Z [debug] [expand] expanding ${workspaceFolder}/build 2024-11-07T12:42:54.852Z [info] [cmake] Configuring done 2024-11-07T12:42:54.864Z [info] [cmake] Generating done 2024-11-07T12:42:55.129Z [debug] [expand] expanding cmake 2024-11-07T12:42:55.209Z [debug] [expand] expanding cmake 2024-11-07T12:42:55.212Z [debug] [expand] expanding cmake 2024-11-07T12:42:55.231Z [debug] [expand] expanding -T 2024-11-07T12:42:55.232Z [debug] [expand] expanding test 2024-11-07T12:42:55.232Z [debug] [expand] expanding --output-on-failure 2024-11-07T12:42:55.342Z [debug] [cache] Reading CMake cache file /home/docker_bind/projects/build/CMakeCache.txt 2024-11-07T12:42:55.342Z [debug] [cache] Parsing CMake cache string 2024-11-07T12:42:55.347Z [debug] [expand] expanding cmake 2024-11-07T12:43:00.208Z [debug] [expand] expanding cmake 2024-11-07T12:43:09.814Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:43:09.821Z [info] [main] Building folder: projects 2024-11-07T12:43:09.821Z [debug] [expand] expanding cmake 2024-11-07T12:43:09.912Z [debug] [main] Saving open files before configure/build 2024-11-07T12:43:09.917Z [debug] [expand] expanding cmake 2024-11-07T12:43:09.970Z [debug] [expand] expanding cmake 2024-11-07T12:43:10.014Z [debug] [expand] expanding cmake 2024-11-07T12:43:10.020Z [info] [build] Starting build 2024-11-07T12:43:10.031Z [debug] [driver] Start build all 2024-11-07T12:43:10.034Z [debug] [expand] expanding --build 2024-11-07T12:43:10.034Z [debug] [expand] expanding /home/docker_bind/projects/build 2024-11-07T12:43:10.035Z [debug] [expand] expanding --config 2024-11-07T12:43:10.035Z [debug] [expand] expanding Debug 2024-11-07T12:43:10.035Z [debug] [expand] expanding --target 2024-11-07T12:43:10.036Z [debug] [expand] expanding all 2024-11-07T12:43:10.036Z [debug] [expand] expanding -- 2024-11-07T12:43:10.036Z [debug] [expand] expanding -j 2024-11-07T12:43:10.037Z [debug] [expand] expanding 14 2024-11-07T12:43:10.039Z [info] [proc] Executing command: /usr/bin/cmake --build /home/docker_bind/projects/build --config Debug --target all -- -j 14 2024-11-07T12:43:10.039Z [debug] [proc] with environment: {"USER":"bamboo","HOSTNAME":"usrp-build","HOME":"/home/docker_bind","container":"podman","TERM":"xterm","PATH":"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/bin/remote-cli:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin","VSCODE_AGENT_FOLDER":"/home/docker_bind/.vscode-server","DEBIAN_FRONTEND":"noninteractive","SHELL":"/bin/bash","PWD":"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy","TZ":"Europe/Moscow","VSCODE_CWD":"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy","VSCODE_NLS_CONFIG":"{\"userLocale\":\"en\",\"osLocale\":\"en\",\"resolvedLanguage\":\"en\",\"defaultMessagesFile\":\"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/out/nls.messages.json\",\"locale\":\"en\",\"availableLanguages\":{}}","VSCODE_HANDLES_SIGPIPE":"true","VSCODE_AMD_ENTRYPOINT":"vs/workbench/api/node/extensionHostProcess","VSCODE_HANDLES_UNCAUGHT_ERRORS":"true","REMOTE_CONTAINERS_SOCKETS":"[\"/tmp/vscode-ssh-auth-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock\",\"/tmp/.X11-unix/X21\",\"/home/docker_bind/.gnupg/S.gpg-agent\"]","REMOTE_CONTAINERSIPC":"/tmp/vscode-remote-containers-ipc-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock","SHLVL":"1","":"/bin/cat","SSH_AUTH_SOCK":"/tmp/vscode-ssh-auth-d654e4a9-5a4e-4173-b22a-1b90b6fef287.sock","DISPLAY":":21","REMOTE_CONTAINERS_DISPLAY_SOCK":"/tmp/.X11-unix/X21","REMOTE_CONTAINERS":"true","BROWSER":"/home/docker_bind/.vscode-server/bin/384ff7382de624fb94dbaf6da11977bba1ecd427-legacy/bin/helpers/browser.sh","ELECTRON_RUN_AS_NODE":"1","VSCODE_IPC_HOOK_CLI":"/tmp/vscode-ipc-18b5dcba-e058-44d3-bcf3-7f72a832c9e7.sock","VSCODE_L10N_BUNDLE_LOCATION":"","APPLICATION_INSIGHTS_NO_DIAGNOSTIC_CHANNEL":"1","NINJA_STATUS":"[%s/%t %p :: %e] "} 2024-11-07T12:43:10.101Z [info] [build] [ 8%] Built target format_arguments 2024-11-07T12:43:10.102Z [info] [build] [ 16%] Built target comparison_exe 2024-11-07T12:43:10.103Z [info] [build] [ 25%] Built target address_exe 2024-11-07T12:43:10.103Z [info] [build] [ 33%] Built target queue_consequent_performance 2024-11-07T12:43:10.104Z [info] [build] [ 41%] Built target test_cond_var 2024-11-07T12:43:10.104Z [info] [build] [ 54%] Built target map 2024-11-07T12:43:10.106Z [info] [build] [ 79%] Built target queue_concurrent_performance 2024-11-07T12:43:10.106Z [info] [build] [ 79%] Built target queue_concurrent_robustness 2024-11-07T12:43:10.106Z [info] [build] [ 79%] Built target syscall 2024-11-07T12:43:10.107Z [info] [build] [100%] Built target allocator_test_exe 2024-11-07T12:43:10.108Z [info] [build] [100%] Built target tagged_ptr_128_test 2024-11-07T12:43:10.122Z [info] [driver] Build completed: 00:00:00.091 2024-11-07T12:43:10.128Z [debug] [expand] expanding cmake 2024-11-07T12:43:10.129Z [debug] [cms-driver] Run doRefreshExpansions 2024-11-07T12:43:10.129Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:43:10.130Z [debug] [expand] expanding ${workspaceFolder}/build 2024-11-07T12:43:10.175Z [info] [build] Build finished with exit code 0 2024-11-07T12:43:10.177Z [debug] [expand] expanding cmake 2024-11-07T12:43:10.177Z [debug] [cache] Reading CMake cache file /home/docker_bind/projects/build/CMakeCache.txt 2024-11-07T12:43:10.179Z [debug] [cache] Parsing CMake cache string 2024-11-07T12:43:10.202Z [debug] [expand] expanding cmake 2024-11-07T12:43:10.213Z [debug] [expand] expanding /home/docker_bind/projects 2024-11-07T12:43:20.714Z [debug] [extension] [7147] cmake.viewLog started 2024-11-07T12:43:20.763Z [debug] [extension] [7147] cmake.viewLog finished (returned undefined)

Additional Information

[Amy-Li03]

Hi @MichaelMakarov , thanks for your feedback! Is there any way that you could provide a minimal repro project so that we can investigate?

[MichaelMakarov]

There is a simple cmake project with one test. Using it one can achieve the behaviour I have described before.example.zip

[Amy-Li03]

@MichaelMakarov thanks for your quick response! We try to debug above example project on host Linux machine and Linux machine with docker container, however they all debug failed with below message. Please correct us if we have done something wrong.

[MichaelMakarov]

I have performed the following steps on my host machine: 1) build the project 2) create the breakpoint in generator.t.cpp:14 2) open the testing tab (there must be generator test as shown in the first image) 3) click debug test (the debugging must stop on the breakpoint as shown in the second image)

I have performed the following steps in remote container case: 1) use dev container extension and attach to running container (I use podman for building and running containers) 2) open folder with the project 2) perform the steps 1 - 4 as described above in host machine section

[Amy-Li03]

Hi @MichaelMakarov , thanks for your detailed repro steps. Firstly, I performed the steps on a Linux host machine, it works as expected: the debugging stops on the breakpoint after clicking debug test from test explorer. Then, I performed the steps in remote container case, use dev container extension and docker to attach to running container, it also works as on host machine, please see following screenshot and video:

Attached my test project: vs-remote-test.zip, it contains devcontainer.json and Dockerfile.

https://github.com/user-attachments/assets/7d106b51-2ab3-4f46-87cb-7c0dc05906c9

[MichaelMakarov]

In my opinion, the main difference is that I have prepared docker container outside vs code environment and started it via terminal. Then I used dev containers extension to attach the running docker container and open the project directory inside it. I anticipate that vs code prepares some additional info in your case but don't know what it actually is.