kernel/linux.git/tools/perf/util/Build, branch v5.4.185

perf evsel: Introduce evsel_fprintf.h

2019-09-25T19:26:34+00:00

We already had evsel_fprintf.c, add its counterpart, so that we can reduce evsel.h a bit more. We needed a new perf_event_attr_fprintf.c file so as to have a separate object to link with the python binding in tools/perf/util/python-ext-sources and not drag symbol_conf, etc into the python binding. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-06bdmt1062d9unzgqmxwlv88@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf copyfile: Move copyfile routines to separate files

2019-09-25T12:51:49+00:00

Further reducing the util.c hodgepodge files. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-0i62zh7ok25znibyebgq0qs4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Move event synthesizing routines to separate .c file

2019-09-20T13:28:21+00:00

For better grouping, in time we may end up making most of these static, i.e. generalizing the 'perf record' synthesizing code so that based on the target it can do the right thing and call the needed synthesizers. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-s9zxxhk40s95pjng9panet16@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf dsos: Move the dsos struct and its methods to separate source files

2019-09-01T01:24:10+00:00

So that we can reduce the header dependency tree further, in the process noticed that lots of places were getting even things like build-id routines and 'struct perf_tool' definition indirectly, so fix all those too. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-ti0btma9ow5ndrytyoqdk62j@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf cacheline: Move cacheline related routines to separate files

2019-08-26T14:58:29+00:00

To disentangle util/sort.h a bit more. Cc: Adrian Hunter Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-6kbf2cauas06rbqp15pyter5@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf evswitch: Move switch logic to use in other tools

2019-08-15T15:24:31+00:00

Now other tools that want switching can use an evswitch for that, just set it up and add it to the PERF_RECORD_SAMPLE processing function. Cc: Adrian Hunter Cc: Florian Weimer Cc: Jiri Olsa Cc: Namhyung Kim Cc: William Cohen Link: https://lkml.kernel.org/n/tip-b1trj1q97qwfv251l66q3noj@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Add helpers to use capabilities if present

2019-08-14T13:48:39+00:00

Add utilities to help checking capabilities of the running procss. Make perf link with libcap, if it is available. If no libcap-dev[el], fallback to the geteuid() == 0 test used before. Committer notes: $ perf test python 18: 'import perf' in python : FAILED! $ perf test -v python Couldn't bump rlimit(MEMLOCK), failures may take place when creating BPF maps, etc 18: 'import perf' in python : --- start --- test child forked, pid 23288 Traceback (most recent call last): File "", line 1, in ImportError: /tmp/build/perf/python/perf.so: undefined symbol: cap_get_flag test child finished with -1 ---- end ---- 'import perf' in python: FAILED! $ This happens because differently from the perf binary generated with this patch applied: $ ldd /tmp/build/perf/perf | grep libcap libcap.so.2 => /lib64/libcap.so.2 (0x00007f724a4ef000) $ The python binding isn't linking with libcap: $ ldd /tmp/build/perf/python/perf.so | grep libcap $ So add 'cap' to the 'extra_libraries' variable in tools/perf/util/setup.py, and rebuild: $ perf test python 18: 'import perf' in python : Ok $ If we explicitely disable libcap it also continues to work: $ make NO_LIBCAP=1 -C tools/perf O=/tmp/build/perf install-bin $ ldd /tmp/build/perf/perf | grep libcap $ ldd /tmp/build/perf/python/perf.so | grep libcap $ perf test python 18: 'import perf' in python : Ok $ Signed-off-by: Igor Lubashev Acked-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: James Morris Cc: Mathieu Poirier Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Suzuki Poulouse Cc: linux-arm-kernel@lists.infradead.org [ split from a larger patch ] Link: http://lkml.kernel.org/r/8a1e76cf5c7c9796d0d4d240fbaa85305298aafa.1565188228.git.ilubashe@akamai.com Signed-off-by: Arnaldo Carvalho de Melo

libperf: Adopt xyarray class from perf

2019-07-29T21:34:45+00:00

Move the xyarray class from perf to libperf, because it's going to be used in both. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-58-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

libperf: Move zalloc.o into libperf

2019-07-29T21:34:45+00:00

We need it in both perf and libperf, thus moving it to libperf. Signed-off-by: Jiri Olsa Cc: Alexander Shishkin Cc: Alexey Budankov Cc: Andi Kleen Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20190721112506.12306-45-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

perf tools: Introduce rlimit__bump_memlock() helper

2019-07-09T17:59:11+00:00

Just like the BPF guys did when faced with failures with map creation, etc, i.e. their solution is: tools/testing/selftests/bpf/bpf_rlimit.h For perf use this function in 'perf test' and in 'perf trace'. Make it bump to 4 times the current value, if it fails twice the current value and if it still fails, warn that things like BPF map creation may fail, to help in diagnosing the problem. Cc: Adrian Hunter Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: Jiri Olsa Cc: Namhyung Kim Link: https://lkml.kernel.org/n/tip-muvqef2i7n6pzqbmu7tn2d2y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo