On Fri, Jan 16, 2015 at 01:49:10PM +0000, Mark Rutland wrote: > Hi, > > [...] > > > > > > I just tried a cross-build for arm, and that blew up when trying to do > > > > > something with arch/arm/util/libperf-in.o (log below). I bisected that > > > > > to f169fbc4c59dd9d4 "perf build: Add arch x86 objects building". I'm > > > > > looking into why now. > > > > > > > > I get a similar failure doing a native arm64 build. I think the problem > > > > is > > > > because the arch/ files for arm and arm64 aren't always required (i.e. > > > > there > > > > are configurations where nothing is built under there) and, > > > > consequently, > > > > libperf-in.o isn't actually needed and we try to link against something > > > > that > > > > doesn't exist. > > > > > > exactly ;-) I'll spin v3 shortly.. > > > > this fixes the issue for me > > > > jirka > > > > > > --- > > diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build > > index d35b66014992..396b33b124d1 100644 > > --- a/tools/build/Makefile.build > > +++ b/tools/build/Makefile.build > > @@ -52,7 +52,7 @@ quiet_cmd_cc_s_c = AS $@ > > > > # Link agregate command > > quiet_cmd_ld_multi = LD $@ > > - cmd_ld_multi = $(LD) -r -o $@ $^ > > + cmd_ld_multi = $(LD) -r -o $@ $(wildcard $^) > > > > # Build rules > > $(OUTPUT)%.o: %.c FORCE > > > > Unfortunately that doesn't seem to be sufficient for me when > cross-compiling. It looks like it supresses the warning from Make, but > then LD explodes anyway because it wasn't provided any input files (log > below).
argh.. right, when there are no source objects at all :-\ fix is comming ;-) thanks, jirka -- 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/
