On Wed, May 14, 2014 at 08:34:30AM -0700, Guenter Roeck wrote: > Bummer. Confirmed, if I replace "@h" with "@high" in just one place, > the builds pass with binutils 2.24. Unfortunately the same builds then > fails with binutils 2.23. > > Any idea how to get it to compile with both old and new versions ?
The standard way with GNU software would be to write a configure test, that checks for @high support in the assembler, and defines a macro if the assembler passes the check. I'm not that familiar with the linux kernel these days, but a little grepping around says that something like ashigh := $(call as-instr,lis 9$(comma)foo@high,-DHAVE_AS_ATHIGH=1) KBUILD_AFLAGS += $(ashigh) might work. > Is there some predefined constant which I could possibly use for > something like > > .if as_version_below_2.24_ > oris reg,reg,(expr)@h; > .else > oris reg,reg,(expr)@high; > .endif > > Thanks, > Guenter -- Alan Modra Australia Development Lab, IBM _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
