== Progress == TCWG-607 Initial ARM port for LLD committed upstream. Hello World on an ARM with an ARM only gcc libc is possible, but not much else.
TCWG-611 Initial Thumb support sent for upstream review. Interworking is possible at the BLX level but full interworking support (veneers/thunks) isn't there yet. With this patch it will be possible to do Hello World with a recent Linaro gcc release. TCWG-634 llvm-mc putting out R_ARM_THM_PC24 for B<cond>.W instead of R_ARM_THM_PC19. Simple fix now committed upstream. == Plans == Interworking thunks for lld. The existing thunk design is very simple and only supports one type of thunk per target. For interworking we need at least two (ARM to Thumb) and (Thumb to ARM). I think it might be possible to fit a basic implementation just good enough for ARMv7a to be correct into the existing mechanism, however just one more thunk type will need a more sophisticated design. Current thought is to try and implement the basic design to learn a bit more about the mechanism as it will hopefully not take too long. _______________________________________________ linaro-toolchain mailing list linaro-toolchain@lists.linaro.org https://lists.linaro.org/mailman/listinfo/linaro-toolchain
