Em Tue, Sep 27, 2016 at 04:18:46PM +0200, Jiri Olsa escreveu:

quoted

On Mon, Sep 26, 2016 at 09:59:54AM -0700, Andi Kleen wrote:

quoted

On Mon, Sep 26, 2016 at 12:03:43PM -0300, Arnaldo Carvalho de Melo wrote:

quoted

Em Mon, Sep 26, 2016 at 10:35:33AM +0200, Jiri Olsa escreveu:

quoted

ping.. is that working for you? IMO we can include this
as additional patch to the set..

No, it doesn't fails to build on the first cross env I tried, fixing it
now, resulting patch:

Yes it shouldn't be difficult to fix cross building. I don't think
there are any fundamental problems.

right, how about attached patch

Arnaldo,
could you please try it on cross build.. I still dont have setup for that :-\

thanks,
jirka

So, this makes it work for me in one of the cross build envs I have (all
in https://hub.docker.com/r/acmel/) if I apply this patch on top:

diff --git a/tools/build/Makefile b/tools/build/Makefile
index 653faee2a055..8332959fbca4 100644
--- a/tools/build/Makefile
+++ b/tools/build/Makefile

@@ -42,7 +42,7 @@ $(OUTPUT)fixdep-in.o: FORCE
 	$(Q)$(MAKE) $(build)=fixdep
 
 $(OUTPUT)fixdep: $(OUTPUT)fixdep-in.o
-	$(QUIET_LINK)$(CC) $(LDFLAGS) -o $@ $<
+	$(QUIET_LINK)$(HOSTCC) $(LDFLAGS) -o $@ $<
 
 FORCE:
 
-------------------

I've broken up the patch into multiple ones, to get first fixdep
working, then to move to jevents, I'm putting this on a
tmp.perf/hostprog branch till I've tested it all.