Re: [PATCH] Documentation: ptp: Fix build failure on MIPS cross builds
From: Richard Cochran
Date: Tue Oct 21 2014 - 14:28:12 EST
(adding Makefile author Peter Foley onto CC)
On Tue, Oct 21, 2014 at 09:58:51AM -0700, David Daney wrote:
> On 10/21/2014 09:35 AM, David Miller wrote:
> >From: Richard Cochran <richardcochran@xxxxxxxxx>
> >Date: Tue, 21 Oct 2014 13:07:25 +0200
> >
> >>On Mon, Oct 20, 2014 at 09:42:18AM +0100, Markos Chandras wrote:
> >>>diff --git a/Documentation/ptp/Makefile b/Documentation/ptp/Makefile
> >>>index 293d6c09a11f..397c1cd2eda7 100644
> >>>--- a/Documentation/ptp/Makefile
> >>>+++ b/Documentation/ptp/Makefile
> >>>@@ -1,5 +1,15 @@
> >>> # List of programs to build
> >>>+ifndef CROSS_COMPILE
> >>> hostprogs-y := testptp
> >>>+else
> >>>+# MIPS system calls are defined based on the -mabi that is passed
> >>>+# to the toolchain which may or may not be a valid option
> >>>+# for the host toolchain. So disable testptp if target architecture
> >>>+# is MIPS but the host isn't.
> >>>+ifndef CONFIG_MIPS
> >>>+hostprogs-y := testptp
> >>>+endif
> >>>+endif
> >>
> >>It seems like a shame to simply give up and not compile this at all.
> >>Is there no way to correctly cross compile this for MIPS?
> >
> >Yeah seriously, we should try to make this work instead of throwing our
> >hands in the air.
> >
>
> We cross compile things successfully all the time for all the
> various MIPS ABIs.
>
> It is a simple matter of having the Makefile setup for cross compiling.
>
> What I don't understand is why we are using hostprogs in this
> Makefile. Isn't this a program that would run on the target, not
> the build host?
Yes.
Peter, could you please fix it?
Thanks,
Richard
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