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| author | Ingo Molnar <mingo@kernel.org> | 2017-02-14 07:29:38 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2017-02-14 07:29:38 +0100 |
| commit | 277d6f1dcae09aed63cd4c7900a280b0e18cf2ca (patch) | |
| tree | fef746abe14f0cff91621405e501855df85d915d /tools/perf/util/scripting-engines | |
| parent | 210f400d68a14bc89e2e61dc2e06cdd67cfeb5f6 (diff) | |
| parent | a734fb5d60067a73dd7099a58756847c07f9cd68 (diff) | |
| download | blackbird-op-linux-277d6f1dcae09aed63cd4c7900a280b0e18cf2ca.tar.gz blackbird-op-linux-277d6f1dcae09aed63cd4c7900a280b0e18cf2ca.zip | |
Merge tag 'perf-core-for-mingo-4.11-20170213' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/core
Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:
New features:
- Introduce the 'delta-abs' 'perf diff' compute method, that orders the
histogram entries by the absolute value of the percentage delta for a
function in two perf.data files, i.e. the functions that changed the
most (increase or decrease in samples) comes first (Namhyung Kim)
User visible changes:
- Improve message about tweaking the kernel.perf_event_paranoid setting,
telling how to make the change permanent by editing /etc/sysctl.conf
(Arnaldo Carvalho de Melo)
Infrastructure changes:
- Introduce linux/compiler-gcc.h as a counterpart to the kernel's,
initially containing the definition of __fallthrough, more to
come (__maybe_unused, etc) (Arnaldo Carvalho de Melo)
- Fixes for problems uncovered by building tools/perf with clang, such
as always true tests of arrays against NULL and variables that sometimes
were used without being initialized (Arnaldo Carvalho de Melo, Steven Rostedt)
- Before loading a new ELF, clear global variables set by the
samples/bpf loader (Mickaël Salaün)
- Ignore already processed ELF sections in the samples/bpf
loader (Mickaël Salaün)
- Fix compile error in the scripting code with some perl5
versions (Wang YanQing)
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools/perf/util/scripting-engines')
| -rw-r--r-- | tools/perf/util/scripting-engines/Build | 2 | ||||
| -rw-r--r-- | tools/perf/util/scripting-engines/trace-event-perl.c | 4 |
2 files changed, 3 insertions, 3 deletions
diff --git a/tools/perf/util/scripting-engines/Build b/tools/perf/util/scripting-engines/Build index 6516e220c247..82d28c67e0f3 100644 --- a/tools/perf/util/scripting-engines/Build +++ b/tools/perf/util/scripting-engines/Build @@ -1,6 +1,6 @@ libperf-$(CONFIG_LIBPERL) += trace-event-perl.o libperf-$(CONFIG_LIBPYTHON) += trace-event-python.o -CFLAGS_trace-event-perl.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-undef -Wno-switch-default +CFLAGS_trace-event-perl.o += $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow -Wno-nested-externs -Wno-undef -Wno-switch-default CFLAGS_trace-event-python.o += $(PYTHON_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c index 014ecd6f67c4..c1555fd0035a 100644 --- a/tools/perf/util/scripting-engines/trace-event-perl.c +++ b/tools/perf/util/scripting-engines/trace-event-perl.c @@ -309,10 +309,10 @@ static SV *perl_process_callchain(struct perf_sample *sample, if (node->map) { struct map *map = node->map; const char *dsoname = "[unknown]"; - if (map && map->dso && (map->dso->name || map->dso->long_name)) { + if (map && map->dso) { if (symbol_conf.show_kernel_path && map->dso->long_name) dsoname = map->dso->long_name; - else if (map->dso->name) + else dsoname = map->dso->name; } if (!hv_stores(elem, "dso", newSVpv(dsoname,0))) { |
