How can i generate compile_commands.json with pio

featherfly · April 1, 2022, 5:54am

i want use vscode plugin clangd to do code assist
clangd work with compile_commands.json
so how can i generate compile_commands.json with pio

maxgerhardt · April 1, 2022, 9:53am

See

https://docs.platformio.org/en/latest/integration/compile_commands.html

and

github.com/platformio/platformio-core

compile_commands.json include toolchain headers by default

opened 06:07PM - 04 Dec 21 UTC

closed 02:08PM - 08 Apr 22 UTC

gagara

enhancement integration

- [x] **PlatformIO Core**. If you’ve found a bug, please provide an infor…mation below. ### Configuration **Operating system**: GNU/Linux **PlatformIO Version** (`platformio --version`): PlatformIO Core, version 5.2.3 ### Description of problem `compile_commands.json` does not include path to toolchain headers, thus clangd unable to resolve some toolchain headers #### Steps to Reproduce 1. Setup sample project 2. Generate `compile_commands.json` ``` $ pio run -t compiledb ``` 3. Import project to clangd enabled IDE/editor (I use vim) ### Actual Results Navigate to `Arduino.h` -- works fine. All includes in `Arduino.h` are wrongly resolved. Some of them (e.g. `math.h`) resolved to host headers at `/usr`, others, avr specific (e.g. `avr/io.h`) failed to resolve. ### Expected Results All headers/sources should be resolved correctly ### If problems with PlatformIO Build System: **The content of `platformio.ini`:** ```ini [env:nanoatmega328] platform = atmelavr board = nanoatmega328 framework = arduino ``` **Source file to reproduce issue:** ```cpp #include <Arduino.h> void setup() { } void loop() { } ``` ### Additional info Possible workaround: Add missing include in project config: ```ini [env:nanoatmega328] platform = atmelavr board = nanoatmega328 framework = arduino build_flags = -I${platformio.packages_dir}/toolchain-atmelavr/avr/include ``` In this case all sources resolved correctly. I think this path should be included by default.

featherfly · April 3, 2022, 11:00am

i got it,
thank a lot