powerpc/Makefile: Use cflags-y/aflags-y for setting endian options
patch-notifications at ellerman.id.au
Thu Aug 11 21:16:49 AEST 2016
On Tue, 2016-09-08 at 12:43:46 UTC, Michael Ellerman wrote:
> When we introduced the little endian support, we added the endian flags
> to CC directly using override. I don't know the history of why we did
> that, I suspect no one does.
> Although this mostly works, it has one bug, which is that CROSS32CC
> doesn't get -mbig-endian. That means when the compiler is little endian
> by default and the user is building big endian, vdso32 is incorrectly
> compiled as little endian and the kernel fails to build.
> Instead we can add the endian flags to cflags-y/aflags-y, and then
> append those to KBUILD_CFLAGS/KBUILD_AFLAGS.
> This has the advantage of being 1) less ugly, 2) the documented way of
> adding flags in the arch Makefile and 3) it fixes building vdso32 with a
> LE toolchain.
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>
Applied to powerpc fixes.
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