Can't build kernel 3.16.0-26.34~14.04.1 on amd64

[Cyril Scetbon]

The issue is in fact really similar to http://lkml.iu.edu/hypermail/linux/kernel/1408.3/00285.html <http://lkml.iu.edu/hypermail/linux/kernel/1408.3/00285.html>. In my case Dwarf is disabled too as opposed to your build.
-- 
Cyril SCETBON

> On 26 Nov 2014, at 17:47, Cyril Scetbon <cyril.scetbon at free.fr> wrote:
> 
> Hi,
> 
> Building this kernel on an X86_64 works like a charm, however it fails on an AMD64. You can find the output of the build at http://pastebin.com/fXTwucbg <http://pastebin.com/fXTwucbg>.
> 
> To be able to build it I had to apply the attached patch. 
> 
> => Explanation of the issue
> 
> The matter is that in debian/build/tools-perarch/tools/perf/Makefile.perf I find :
> 
> ifeq ($(ARCH),x86)
> LIB_OBJS += $(OUTPUT)tests/perf-time-to-tsc.o
> endif
> 
> which means it's not included for ARCH=amd64. However functions stored in the file above are referred in debian/build/tools-perarch/tools/perf/tests/builtin-test.c :
> 
> #if defined(__x86_64__) || defined(__i386__)
>         {
>                 .desc = "Test converting perf time to TSC",
>                 .func = test__perf_time_to_tsc,
>         },
> #endif
> 
> In fact, on an AMD64,  "defined(__x86_64__)" is True while "ifeq ($(ARCH),x86") is FALSE and that's the cause of the issue. I'm amazed to see you build it on AMD64 and don't seem to get issues on launchpad ...
> 
> <utopic-fix.patch>
> -- 
> Cyril SCETBON
> 
> -- 
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