Trying that again:
https://wiki.ubuntu.com/ARM/Thumb2PortingHowto#Building%20Stand-Alone%20Assembler%20Files%20in%20Thumb-2
Trying that again:
https:/ /wiki.ubuntu. com/ARM/ Thumb2PortingHo wto#Building% 20Stand- Alone%20Assembl er%20Files% 20in%20Thumb- 2