build_unflags not working on "libs" directories (rtos, USB, etc)

[stefaandesmet2003]

Hi,
I'm using the platformIO extension in VS Code, and building a debug version of the mbed-rtos example code, using the platformio.ini below, setting extra debug flags, and unsetting the defaults.

The flags are applied to the "core" files, main.c etc, but not to the "rtos" files. As a result I cannot properly debug into these files.

In BLUEPILL_F103C8.json these files are under the "libs" element.
The same behavior occurs with the USBDevice files, which are also under "libs" (that's how i came across this problem; I was playing around with the USBDevice stack on bluepill and needed debugging on the usb files).

[env:bluepill_f103c8_debug]
platform = ststm32
framework = mbed
board = bluepill_f103c8
build_flags = -DPIO_FRAMEWORK_MBED_RTOS_PRESENT, -g3, -Og
build_unflags = -Os, -O1, -O2, -O3, -g1

excerpt from the verbose build :

arm-none-eabi-g++ -o .pioenvs/bluepill_f103c8_debug/lib7ec/rtos/ThisThread.o -c -std=gnu++98 -fno-rtti -Wvla -g3 -Og -mcpu=cortex-m3 -mthumb -c -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -fmessage-length=0 -fno-exceptions -fno-builtin -ffunction-sections -fdata-sections -funsigned-char -MMD -fno-delete-null-pointer-checks -fomit-frame-pointer -Os -DNDEBUG -g1 -include mbed_config.h -DPLATFORMIO=30604 ...

arm-none-eabi-g++ -o .pioenvs/bluepill_f103c8_debug/lib7ec/rtos/Thread.o -c -std=gnu++98 -fno-rtti -Wvla -g3 -Og -mcpu=cortex-m3 -mthumb -c -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -fmessage-length=0 -fno-exceptions -fno-builtin -ffunction-sections -fdata-sections -funsigned-char -MMD -fno-delete-null-pointer-checks -fomit-frame-pointer -Os -DNDEBUG -g1 -include mbed_config.h -DPLATFORMIO=30604 ...

arm-none-eabi-g++ -o .pioenvs/bluepill_f103c8_debug/src/main.o -c -std=gnu++98 -fno-rtti -Wvla -g3 -Og -mcpu=cortex-m3 -mthumb -c -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -fmessage-length=0 -fno-exceptions -fno-builtin -ffunction-sections -fdata-sections -funsigned-char -MMD -fno-delete-null-pointer-checks -fomit-frame-pointer -DNDEBUG -include mbed_config.h -DPLATFORMIO=30604 ...

[ivankravets]

Could you try upstream version? https://docs.platformio.org/en/latest/platforms/ststm32.html

We updated mbed builder but has not been released it yet

[stefaandesmet2003]

Thanks, that works!
But the build is very slow, it builds all the files in the framework, also files that aren't included in my application (like lwip, mbedtls, etc). I guess that's work in progress ?
Cheers,
Stefaan

[ivankravets]

We switched to official mbed-OS source files provider to be maximum compatible with their builder and add support for mbed_app.json.

[stefaandesmet2003]

Hi Ivan,
what help is wanted? glad to help, but am only starting to learn about mbed os, mbed-cli vs framework-mbed in platformio, so would need some directions ..
Is it possible through mbed_app.json to reduce the number of unused features that are built each time?

[ivankravets]

Is it possible through mbed_app.json to reduce the number of unused features that are built each time?

@valeros is it possible?

[valeros]

Hi @stefaandesmet2003 ! I'm not sure whether it's possible to disable particular parts of the framework using the configuration file, but at least you can try to remove unused folders by adding a special empty file .mbedignore to them.

[rijesha]

Hi @valeros . Where would the .mbedignore file be added?

[valeros]

Hi @rijesha! You need to add this file to each directory you want to ignore. The framework package is located here: YOUR_HOME_DIR/.platformio/packages/framework-mbed

[didi110296]

Hi @rijesha! You need to add this file to each directory you want to ignore. The framework package is located here: YOUR_HOME_DIR/.platformio/packages/framework-mbed

Not working for me.
Platformio compile all framework mbed components and targets, does anyone know how compile only necessary components/features?

Thanks, regards.

[valeros]

@didi110296 What exactly do you want to omit? Have you tried adding directory names or * to .mbedignore? You can create a new file .mbedignore with only one symbol * in this file and place it for example here: YOUR_HOME_DIR/.platformio/packages/framework-mbed/components/.mbedignore then the entire folder components shouldn't be compiled.

[didi110296]

@valeros Thank you for you reply, I've tried to do that, i've put .mbedignore with this content :
components/* features/cellular features/cryptocell features/device_key features/frameworks/* features/lorawan features/lwipstack features/mbedtls features/nanostack features/netsocket features/nfc features/storage features/unsupported

Here : .platformio/packages/framework-mbed/

But platformio continue compiling all components and features ...

Compiling .pio/build/nrf52_dk/FrameworkMbed/components/802.15.4_RF/atmel-rf-driver/source/NanostackRfPhyAtmel.o Compiling .pio/build/nrf52_dk/FrameworkMbed/components/802.15.4_RF/atmel-rf-driver/source/at24mac.o Compiling .pio/build/nrf52_dk/FrameworkMbed/components/802.15.4_RF/mcr20a-rf-driver/source/MCR20Drv.o Compiling .pio/build/nrf52_dk/FrameworkMbed/components/802.15.4_RF/mcr20a-rf-driver/source/NanostackRfPhyMcr20a.o

[valeros]

You need to put this file explicitly in the folder you want to ignore as we build all parts separately:
For example:
.platformio/packages/framework-mbed/components/.mbedignore file with only one symbol: *
.platformio/packages/framework-mbed/features/.mbedignore with folder names:

cellular/*
cryptocell/*
device_key/*

[didi110296]

Good that work, thank you 👍

[KKoovalsky]

I created a simple python script which can be executed from the pre-script. See https://github.com/KKoovalsky/PlatformIO-Helpers.

It puts .mbedignore file with content *\n to each ignored path.

Can be used across multiple projects.