Re: [PATCH] mod/file2alias: make modalias generation safe forcross compiling

From: Sam Ravnborg
Date: Tue Jun 26 2012 - 01:00:46 EST


Hi Andreas.

On Mon, Jun 25, 2012 at 02:22:34PM +0200, Andreas Schwab wrote:
> Use the target compiler to compute the offsets of the fields of the
> device_id structures, so that it won't be broken by different alignments
> between the host and target ABIs.
Looks good.

> diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost
> index 08dce14..ff22206 100644
> --- a/scripts/Makefile.modpost
> +++ b/scripts/Makefile.modpost
> @@ -80,8 +80,7 @@ modpost = scripts/mod/modpost \
> $(if $(KBUILD_EXTRA_SYMBOLS), $(patsubst %, -e %,$(KBUILD_EXTRA_SYMBOLS))) \
> $(if $(KBUILD_EXTMOD),-o $(modulesymfile)) \
> $(if $(CONFIG_DEBUG_SECTION_MISMATCH),,-S) \
> - $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w) \
> - $(if $(cross_build),-c)
> + $(if $(KBUILD_EXTMOD)$(KBUILD_MODPOST_WARN),-w)

With this change we can kill cross_build, and thus we can
drop KBUILD_BUILDHOST too (from top-level Makefile).

Sam
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