schnitzeltony / meta-microcontroller Goto Github PK

I'm trying to create a recipe for a non-avr target that includes an mcu binary, but am running into issues compiling the binary. avr-gcc is present and available in the compilation step, however there are issues with missing avr-libc components which I can't seem to find in the build-time sysroot. In the recipe, I have

DEPENDS += " \
  avr-libc \
  avg-gcc-native \
"

however I'm wondering if there is some additional yocto magic required, or if avr-libc is being added somewhere else (it isn't present in ${libdir} when inspecting during the do_compile step).

@schnitzeltony do you have any public recipes which do a similar thing that I could take a look at? The main issue seems to just be the presence of avr-libc in the sysroot while compiling.

Hi. This is somewhat related to #2, which allows for building of avr binaries during bitbake execution. It would be nice to also have the tools be populated during the populate_sdk task so the same toolchain can be used to build when sourcing the Yocto sdk. Is this something that can be done? Looking into poky, it seems like all that would be needed is the packagegroup and have BBCLASSEXTENDS contain nativesdk.

I attempted this myself by adding

• BBCLASSEXTENDS = "nativesdk" to, avr-* recipes

• Added a package group...

  SUMMARY = "Host packages for AVR SDK or external toolchain"
  LICENSE = "MIT"
  
  inherit nativesdk packagegroup
  
  PACKAGEGROUP_DISABLE_COMPLEMENTARY = "1"
  
  RDEPENDS_${PN} += " \
      nativesdk-packagegroup-sdk-host \
      nativesdk-avr-binutils \
      nativesdk-avr-gcc \
      nativesdk-avr-gdb \
      nativesdk-avr-libc \
  "
  

However, I encountered an error when compiling nativesdk-avr-gcc:

g++: error: unrecognized command line option ‘-fmacro-prefix-map=...'

I am not well versed in target vs native vs nativesdk, so I am unsure where to go from here.