How to Build ARM Firmware Using Bazel?

 /usr/bin/arm-none-eabi-gcc -MD -MF bazel-out/k8-fastbuild/bin/_objs/firmware/main.d '-frandom-seed=bazel-out/k8-fastbuild/bin/_objs/firmware/main.o' -iquote . -iquote bazel-out/k8-fastbuild/bin -iquote external/bazel_tools -iquote bazel-out/k8-fastbuild/bin/external/bazel_tools '-mcpu=cortex-m4' -mthumb '-mfloat-abi=hard' '-mfpu=fpv4-sp-d16' '-mcpu=cortex-m4' -mthumb -g -O2 -ffunction-sections -fdata-sections -DSTM32F446xx -c Sources/main.c -o bazel-out/k8-fastbuild/bin/_objs/firmware/main.o)
# Configuration: f484d465c2bae92f555f3b567bbd4c38bbdaf165e5a9c796aa82359aca108a23
# Execution platform: @@local_config_platform//:host

 /usr/bin/arm-none-eabi-gcc -MD -MF bazel-out/k8-fastbuild/bin/_objs/firmware/main.d '-frandom-seed=bazel-out/k8-fastbuild/bin/_objs/firmware/main.o' -iquote . -iquote bazel-out/k8-fastbuild/bin -iquote external/bazel_tools -iquote bazel-out/k8-fastbuild/bin/external/bazel_tools '-mcpu=cortex-m4' -mthumb '-mfloat-abi=hard' '-mfpu=fpv4-sp-d16' '-mcpu=cortex-m4' -mthumb -g -O2 -ffunction-sections -fdata-sections -DSTM32F446xx -c Sources/main.c -o bazel-out/k8-fastbuild/bin/_objs/firmware/main.o)
# Configuration: f484d465c2bae92f555f3b567bbd4c38bbdaf165e5a9c796aa82359aca108a23
# Execution platform: @@local_config_platform//:host

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
Sources/main.c:1:10: fatal error: stm32f446xx.h: No such file or directory
    1 | #include "stm32f446xx.h"
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Target //:firmware failed to build
INFO: Elapsed time: 0.180s, Critical Path: 0.04s

Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
Sources/main.c:1:10: fatal error: stm32f446xx.h: No such file or directory
    1 | #include "stm32f446xx.h"
      |          ^~~~~~~~~~~~~~~
compilation terminated.
Target //:firmware failed to build
INFO: Elapsed time: 0.180s, Critical Path: 0.04s

Generate TFLM tree
Refer: new_platform_support readme

python3 tensorflow/lite/micro/tools/project_generation/create_tflm_tree.py \
  -e hello_world \
  -e micro_speech \
  -e person_detection \
  /your/desired/path/tflm-tree
Run this command to generate tflm-tree directory in your desired path. Copy the tensorflow, third_party and signal folders into your stm32 project includes directory (eg: /core/Inc).

Additional you have to copy fixedpoint and internal directories from the tflite-micro repository that are generated while buiding the library. You can find them in tflite-micro/tensorflow/lite/micro/tools/make/downloads/gemmlowp/ directory. You need to add these to your includes directory (core/Inc) as well.

Note: Only header files are needed. You can run the command find . -type f -name "*.cc" -exec rm -f {} + to remove all .cc files in the current directory.

Additionally, you might also need to add the following as includes directories under Project properties -> C/C++ build -> settings -> MCU/MPU g++ compiler -> include paths

"core/Inc/third_party/flatbuffers/include"
"core/Inc/third_party/kissfft"

Generate TFLM tree
Refer: new_platform_support readme

python3 tensorflow/lite/micro/tools/project_generation/create_tflm_tree.py \
  -e hello_world \
  -e micro_speech \
  -e person_detection \
  /your/desired/path/tflm-tree
Run this command to generate tflm-tree directory in your desired path. Copy the tensorflow, third_party and signal folders into your stm32 project includes directory (eg: /core/Inc).

Additional you have to copy fixedpoint and internal directories from the tflite-micro repository that are generated while buiding the library. You can find them in tflite-micro/tensorflow/lite/micro/tools/make/downloads/gemmlowp/ directory. You need to add these to your includes directory (core/Inc) as well.

Note: Only header files are needed. You can run the command find . -type f -name "*.cc" -exec rm -f {} + to remove all .cc files in the current directory.

Additionally, you might also need to add the following as includes directories under Project properties -> C/C++ build -> settings -> MCU/MPU g++ compiler -> include paths

"core/Inc/third_party/flatbuffers/include"
"core/Inc/third_party/kissfft"