Re: [PATCH v2 0/3] tools/gpio: switch to tools buildsystem

[Andy Shevchenko <andriy.shevchenko@linux.intel.com>]

On Sun, 2016-06-19 at 22:07 +0900, Alexandre Courbot wrote:
> On Sun, Jun 19, 2016 at 12:24 AM, Andy Shevchenko
> <andriy.shevchenko@linux.intel.com> wrote:
> > Current environment is not allowed to easily build the tools.
> > Move to tools buildsystem to allow user build gpio tools using only
> > existing
> > kernel sources. Besides that support O=/path/to/build/dir option.
> 
> Very good idea. I just have a few issues with the current patchset:
> 
> 1) I think patch 1 and 2 should be merged, otherwise we would have one
> commit where the GPIO tools are not available anymore

No objection!

> 2) When trying to cross-compile the tools, I am hitting the following
> error:
> 
>   arm-linux-gnueabihf-gcc -Wp,-MD,./.lsgpio.o.d,-MT,lsgpio.o -O2 -Wall
> -g -D_GNU_SOURCE -Iinclude -D"BUILD_STR(s)=#s"   -c -o lsgpio.o
> lsgpio.c
>   arm-linux-gnueabihf-gcc -Wp,-MD,./.gpio-utils.o.d,-MT,gpio-utils.o
> -O2 -Wall -g -D_GNU_SOURCE -Iinclude -D"BUILD_STR(s)=#s"   -c -o
> gpio-utils.o gpio-utils.c
>    ld -r -o lsgpio-in.o  lsgpio.o gpio-utils.o
> lsgpio.o: error adding symbols: File in wrong format
> 
> Looks like the host linker is invoked instead of the target one.

Can you try to add

LD = $(CROSS_COMPILE)ld

into Makefile and re-run?

-- 

Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Intel Finland Oy
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