Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1216677
| From | Ingo Molnar <mingo@kernel.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [BUG] perf: does not compile on ARM because of Intel PT code |
| Date | 2015-09-01 10:40 +0200 |
| Message-ID | <q3PgK-1hp-9@gated-at.bofh.it> (permalink) |
| References | <q3P74-160-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
* 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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread
[BUG] perf: does not compile on ARM because of Intel PT code Stephane Eranian <eranian@google.com> - 2015-09-01 10:30 +0200 Re: [BUG] perf: does not compile on ARM because of Intel PT code Adrian Hunter <adrian.hunter@intel.com> - 2015-09-01 10:30 +0200 Re: [BUG] perf: does not compile on ARM because of Intel PT code Ingo Molnar <mingo@kernel.org> - 2015-09-01 10:40 +0200
csiph-web