On Wed, Aug 26, 2015 at 09:57:13AM +0300, Adrian Hunter wrote:
> On 25/08/15 18:30, Arnaldo Carvalho de Melo wrote:
> > Em Tue, Aug 25, 2015 at 01:42:27PM +0300, Adrian Hunter escreveu:
> >> It is theoretically possible to process perf.data files created on
> >> x86 and that contain Intel PT or Intel BTS data, on any other
> >> architecture, which is why it is possible for there to be build
> >> errors on powerpc caused by pt/bts.
> >>
> >> The errors were:
> >>
> >> util/intel-pt-decoder/intel-pt-insn-decoder.c: In function
> >> ‘intel_pt_insn_decoder’:
> >> util/intel-pt-decoder/intel-pt-insn-decoder.c:138:3: error: switch
> >> missing default case [-Werror=switch-default]
> >> switch (insn->immediate.nbytes) {
> >> ^
> >> cc1: all warnings being treated as errors
> >>
> >> linux-acme.git/tools/perf/perf-obj/libperf.a(libperf-in.o): In function
> >> `intel_pt_synth_branch_sample':
> >> sources/linux-acme.git/tools/perf/util/intel-pt.c:871: undefined
> >> reference to `tsc_to_perf_time'
> >> linux-acme.git/tools/perf/perf-obj/libperf.a(libperf-in.o): In function
> >> `intel_pt_sample':
> >> sources/linux-acme.git/tools/perf/util/intel-pt.c:915: undefined
> >> reference to `tsc_to_perf_time'
> >> sources/linux-acme.git/tools/perf/util/intel-pt.c:962: undefined
> >> reference to `tsc_to_perf_time'
> >> linux-acme.git/tools/perf/perf-obj/libperf.a(libperf-in.o): In function
> >> `intel_pt_process_event':
> >> sources/linux-acme.git/tools/perf/util/intel-pt.c:1454: undefined
> >> reference to `perf_time_to_tsc'
> >>
> >> Signed-off-by: Adrian Hunter <adrian.hun...@intel.com>
> >> ---
> >> tools/perf/util/Build | 2 +-
> >> tools/perf/util/intel-pt-decoder/intel-pt-insn-decoder.c | 3 +++
> >> 2 files changed, 4 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/tools/perf/util/Build b/tools/perf/util/Build
> >> index e912856cc4e5..8ae31e5131ee 100644
> >> --- a/tools/perf/util/Build
> >> +++ b/tools/perf/util/Build
> >> @@ -74,7 +74,7 @@ libperf-y += stat-shadow.o
> >> libperf-y += record.o
> >> libperf-y += srcline.o
> >> libperf-y += data.o
> >> -libperf-$(CONFIG_X86) += tsc.o
> >> +libperf-$(if $(CONFIG_X86)$(CONFIG_AUXTRACE),y) += tsc.o
> >
> > I think this is preferred/more clear:
> >
> > libperf-$(CONFIG_X86) += tsc.o
> > libperf-$(CONFIG_AUXTRACE) += tsc.o
>
> I tried that first but it doesn't work:
>
> util/tsc.o: In function `perf_time_to_tsc':
> /mnt/ssd/ahunter/git/linux-perf/tools/perf/util/tsc.c:7: multiple definition
> of `perf_time_to_tsc'
> util/tsc.o:/mnt/ssd/ahunter/git/linux-perf/tools/perf/util/tsc.c:7: first
> defined here
> util/tsc.o: In function `tsc_to_perf_time':
> /mnt/ssd/ahunter/git/linux-perf/tools/perf/util/tsc.c:18: multiple definition
> of `tsc_to_perf_time'
> util/tsc.o:/mnt/ssd/ahunter/git/linux-perf/tools/perf/util/tsc.c:18: first
> defined here
> make[3]: *** [util/libperf-in.o] Error 1
> make[2]: *** [util] Error 2
> make[1]: *** [libperf-in.o] Error 2
> make: *** [all] Error 2
>
> I will have a look at why, unless Jiri knows?
>
I'm now testing attached patch, does it fix it for you?
thanks,
jirka
---
diff --git a/tools/build/Makefile.build b/tools/build/Makefile.build
index 8120af9c0341..0c5f485521d6 100644
--- a/tools/build/Makefile.build
+++ b/tools/build/Makefile.build
@@ -63,7 +63,7 @@ quiet_cmd_gen = GEN $@
# If there's nothing to link, create empty $@ object.
quiet_cmd_ld_multi = LD $@
cmd_ld_multi = $(if $(strip $(obj-y)),\
- $(LD) -r -o $@ $(obj-y),rm -f $@; $(AR) rcs $@)
+ $(LD) -r -o $@ $(filter $(obj-y),$^),rm -f $@; $(AR)
rcs $@)
# Build rules
$(OUTPUT)%.o: %.c FORCE
diff --git a/tools/build/tests/ex/Build b/tools/build/tests/ex/Build
index 70d876237c57..429c7d452101 100644
--- a/tools/build/tests/ex/Build
+++ b/tools/build/tests/ex/Build
@@ -1,6 +1,7 @@
ex-y += ex.o
ex-y += a.o
ex-y += b.o
+ex-y += b.o
ex-y += empty/
ex-y += empty2/
--
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