Hello, While upstreaming ARC bits in OE core I faced one interesting challenge. As of today we have 2 binary-incompatible 32-bit ISAs (Instruction Set Arch): 1. ARCompact (AKA ARCv1) and 2. ARCv2 In Binutils they have 2 separate machine numbers: EM_ARC_COMPACT=93 for ARCompact, see [1] and EM_ARC_COMPACT2=195 for ARCv2, see [2]. Still we call them both "arc" and so I'm not sure what would be the right way of handling that mess in OE's machine dictionary. For now I just have separate instances of "arc_machine_dict" for ARCompact [3] and ARCv2 [4] and depending on what a given OE "machine" includes as "tune-arcX.inc" build system uses one or another dictionary entry. Even though it works fine it doesn't fit into common dictionary in meta/lib/oe/elf.py. Any suggestions on how ARC machine dictionary might be upstreamed? -Alexey [1] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=include/elf/common.h;h=e194274305663f565c6beee5ec21dbed70cdac46;hb=HEAD#l202 [2] https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=blob;f=include/elf/common.h;h=e194274305663f565c6beee5ec21dbed70cdac46;hb=HEAD#l309 [3] https://github.com/foss-for-synopsys-dwc-arc-processors/meta-synopsys/blob/083958dedbd60c022432a17e952638a41e37c3dc/conf/machine/include/tune-arcompact.inc#L25 [4] https://github.com/foss-for-synopsys-dwc-arc-processors/meta-synopsys/blob/083958dedbd60c022432a17e952638a41e37c3dc/conf/machine/include/tune-arcv2.inc#L38
