Sorry for not directly addressing your question, but perhaps for a while it would be better to avoid 8-2018q4-major, I had to patch it heavily to make it work:
https://gnu-mcu-eclipse.github.io/blog/2019/02/14/arm-none-eabi-gcc-v8-2-1-1-4-released/#changes
Sorry for not directly addressing your question, but perhaps for a while it would be better to avoid 8-2018q4-major, I had to patch it heavily to make it work:
https:/ /gnu-mcu- eclipse. github. io/blog/ 2019/02/ 14/arm- none-eabi- gcc-v8- 2-1-1-4- released/ #changes