On Tue, 21 Aug 2018 15:38:39 +1000 Anton Blanchard <an...@ozlabs.org> wrote:
> Hi Michael, > > > This breaks GCC 4.6.3 at least, which we still support: > > > > Assembler messages: > > Error: invalid switch -mpower8 > > Error: unrecognized option -mpower8 > > ../scripts/mod/empty.c:1:0: fatal error: error closing -: Broken > > pipe > > Yuck. We have POWER8 instructions in our assembly code, and a toolchain > that doesn't understand the -mpower8 flag, but has support for > power8 instructions. > > This is what I see on clang with -mpower7: > > /tmp/sstep-2afa55.s:7584: Error: unrecognized opcode: `lbarx' > /tmp/sstep-2afa55.s:7626: Error: unrecognized opcode: `stbcx.' > /tmp/sstep-2afa55.s:8077: Error: unrecognized opcode: `lharx' > /tmp/sstep-2afa55.s:8140: Error: unrecognized opcode: `stbcx.' > > Nick: any suggestions? cpu-as-$(CONFIG_PPC_BOOK3S_64) += $(call as-option,-Wa$(comma)-mpower8,-Wa$(comma)-mpower4) ? Thanks, Nick
