Messages in this thread | | | From | Joel Stanley <> | Date | Tue, 6 Nov 2018 11:06:24 +1030 | Subject | Re: [PATCH 0/2] poewrpc/Boot: Fix cross compiling with clang |
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On Tue, 6 Nov 2018 at 09:07, Nick Desaulniers <ndesaulniers@google.com> wrote: > > On Sun, Nov 4, 2018 at 3:11 PM Joel Stanley <joel@jms.id.au> wrote: > > > > Hello, > > > > These patches allow clang to cross-compile the powerpc boot wrapper. > > The boot wrapper constructs it's own compiler flags as it may not be > > built for the same arch as the kernel. > > Hi Joel, thanks for the series! I'm just curious, how does the boot > wrapper run on a different arch than the kernel?
The kernel can have a ppc32 boot wrapper for a ppc64 kernel. There's some rationale in the boot wrapper's Makefile:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/powerpc/boot/Makefile#n10
Cheers,
Joel
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