Messages in this thread |  | | Date | Mon, 8 Jan 2018 12:24:33 -0300 | From | Arnaldo Carvalho de Melo <> | Subject | Re: [PATCH 01/12] perf tools: Enable LIBBABELTRACE by default |
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Em Mon, Jan 08, 2018 at 12:20:37PM -0300, Arnaldo Carvalho de Melo escreveu: > Em Mon, Jan 08, 2018 at 12:17:09PM -0300, Arnaldo Carvalho de Melo escreveu: > > Em Sun, Jan 07, 2018 at 05:03:45PM +0100, Jiri Olsa escreveu: > > > There's no reason anymore to treat babel trace in a special way, > > > because a) we no longer display its state b) the needed babeltrace > > > library is now out and well adopted among distros. > > > > Humm, after I applied this I got: > > > > [acme@jouet perf]$ perf > > perf: error while loading shared libraries: libbabeltrace-ctf.so.2: cannot open shared object file: No such file or directory > > [acme@jouet perf]$ > > > > So it detects it somehow, builds with it, then fails to find it in the > > LD_LIBRARY_PATH somehow? > > [acme@jouet perf]$ ldd ~/bin/perf | grep babel > libbabeltrace-ctf.so.2 => not found > [acme@jouet perf]$ > > [acme@jouet perf]$ tail -5 /tmp/build/perf/feature/test-libbabeltrace.d > /usr/local/include/babeltrace/ctf-ir/visitor.h \ > /usr/local/include/babeltrace/values.h \ > /usr/local/include/babeltrace/ref.h \ > /usr/local/include/babeltrace/graph/notification.h \ > /usr/local/include/babeltrace/ctf-ir/stream-class.h > [acme@jouet perf]$ > > so I don't have it in LD_LIBRARY_PATH: > > [acme@jouet perf]$ export LD_LIBRARY_PATH=/usr/local/lib/ > [acme@jouet perf]$ ldd ~/bin/perf | grep babel > libbabeltrace-ctf.so.2 => /usr/local/lib/libbabeltrace-ctf.so.2 (0x00007f6322e83000) > [acme@jouet perf]$ perf stat -e cycles sleep 1 > > Performance counter stats for 'sleep 1': > > 384,636 cycles:u > > 1.001294682 seconds time elapsed > > [acme@jouet perf]$ > > Will try removing this local install and use what is in fedora27 > instead...
Works:
[acme@jouet perf]$ ldd ~/bin/perf | grep babel libbabeltrace-ctf.so.1 => /lib64/libbabeltrace-ctf.so.1 (0x00007fcb688d0000) libbabeltrace.so.1 => /lib64/libbabeltrace.so.1 (0x00007fcb67e92000) [acme@jouet perf]$ rpm -q libbabeltrace-devel libbabeltrace-devel-1.5.3-1.fc27.x86_64 [acme@jouet perf]$
But then, if we show:
Auto-detecting system features: ... dwarf: [ on ] ... dwarf_getlocations: [ on ] ... glibc: [ on ] ... gtk2: [ on ] ... libaudit: [ on ] ... libbfd: [ on ] ... libelf: [ on ] ... libnuma: [ on ] ... numa_num_possible_cpus: [ on ] ... libperl: [ on ] ... libpython: [ on ] ... libslang: [ on ] ... libcrypto: [ on ] ... libunwind: [ on ] ... libdw-dwarf-unwind: [ on ] ... zlib: [ on ] ... lzma: [ on ] ... get_cpuid: [ on ] ... bpf: [ on ]
Shoudln't we tell the user that babeltrace was linked too?
- Arnaldo
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