Em Tue, Sep 01, 2015 at 03:59:16PM +0200, Jiri Olsa escreveu: > On Tue, Sep 01, 2015 at 03:16:52PM +0300, Adrian Hunter wrote: > > On 01/09/15 11:54, Ingo Molnar wrote: > > > it would be nice to add a diff check to the perf build, and (non-fatally) > > > warn > > > during the build if the two versions depart from each other?
> > I had a go and came up with this. Arnaldo, Jiri any comments? > > diff --git a/tools/perf/util/intel-pt-decoder/Build > > b/tools/perf/util/intel-pt-decoder/Build > > + diff -B -I'^#include' util/intel-pt-decoder/insn.h > > ../../arch/x86/include/asm/insn.h >/dev/null && \ > > + diff -B -I'^#include' util/intel-pt-decoder/inat.h > > ../../arch/x86/include/asm/inat.h >/dev/null && \ > > + diff -B -I'^#include' util/intel-pt-decoder/inat_types.h > > ../../arch/x86/include/asm/inat_types.h >/dev/null) \ > > + || echo "Warning: Intel PT: x86 instruction decoder differs from > > kernel" >&2 ) > > + $(call rule_mkdir) > > + $(call if_changed_dep,cc_o_c) > seems ok, but it might be nicer to have make function for that > so we could use it on other places like rbtree.h That will pose some more hurdles, as there are things like EXPORT_SYMBOL() and RCU stuff that are ok in the kernel sources, but not in the tools/ copy... I.e. fully sharing will put a new burden for kernel developers working on the to-be-shared code, which is something that is not desired. I was ok with, hey, tools/ broke because you're sharing code with the kernel, as probably a tools/ developer would notice that and fix things, but Linus advised against that. - Arnaldo -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
