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

[Cyril Scetbon]

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 ...


-- 
Cyril SCETBON

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