Messages in this thread | | | Date | Tue, 1 Sep 2015 10:30:29 +0200 | From | Ingo Molnar <> | Subject | Re: [BUG] perf: does not compile on ARM because of Intel PT code |
| |
* Stephane Eranian <eranian@google.com> wrote:
> Hi, > > If you compile tip.git on ARM32 (or ARM64, I bet) you compile link time errors: > > libperf.a(libperf-in.o): In function `intel_pt_synth_branch_sample': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:899: undefined > reference to `tsc_to_perf_time' > libperf.a(libperf-in.o): In function `intel_pt_synth_transaction_sample': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:992: undefined > reference to `tsc_to_perf_time' > libperf.a(libperf-in.o): In function `intel_pt_synth_instruction_sample': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:943: undefined > reference to `tsc_to_perf_time' > libperf.a(libperf-in.o): In function `intel_pt_process_event': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:1484: undefined > reference to `perf_time_to_tsc' > libperf.a(libperf-in.o): In function `intel_pt_process_itrace_start': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:1455: undefined > reference to `perf_time_to_tsc' > libperf.a(libperf-in.o): In function `intel_pt_process_switch': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:1405: undefined > reference to `perf_time_to_tsc' > /home/ubuntu/perfmon/linux/tools/perf/util/intel-pt.c:1427: undefined > reference to `perf_time_to_tsc' > libperf.a(libperf-in.o): In function `intel_bts_process_event': > /home/ubuntu/perfmon/linux/tools/perf/util/intel-bts.c:614: undefined > reference to `perf_time_to_tsc' > > That's because if AUXTRACE is detected, it pulls in x86 specific stuff > like intel-pt. This should > be decoupled.
Could you double check the latest tip:perf/urgent or tip:master whether this is properly fixed by:
# 97db62062ac7 perf tools: Fix build on powerpc broken by pt/bts
?
Thanks,
Ingo
| |