libperf: Move perf_event_attr field from perf's evsel to libperf's perf_evsel

Move the perf_event_attr struct fron 'struct evsel' to 'struct perf_evsel'.

Committer notes:

Fixed up these:

 tools/perf/arch/arm/util/auxtrace.c
 tools/perf/arch/arm/util/cs-etm.c
 tools/perf/arch/arm64/util/arm-spe.c
 tools/perf/arch/s390/util/auxtrace.c
 tools/perf/util/cs-etm.c

Also

  cc1: warnings being treated as errors
  tests/sample-parsing.c: In function 'do_test':
  tests/sample-parsing.c:162: error: missing initializer
  tests/sample-parsing.c:162: error: (near initialization for 'evsel.core.cpus')

   	struct evsel evsel = {
   		.needs_swap = false,
  -		.core.attr = {
  -			.sample_type = sample_type,
  -			.read_format = read_format,
  +		.core = {
  +			. attr = {
  +				.sample_type = sample_type,
  +				.read_format = read_format,
  +			},

  [perfbuilder@a70e4eeb5549 /]$ gcc --version |& head -1
  gcc (GCC) 4.4.7

Also we don't need to include perf_event.h in
tools/perf/lib/include/perf/evsel.h, forward declaring 'struct
perf_event_attr' is enough. And this even fixes the build in some
systems where things are used somewhere down the include path from
perf_event.h without defining __always_inline.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/20190721112506.12306-43-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 9 insertions, 2 deletions

diff --git a/tools/perf/lib/evsel.c b/tools/perf/lib/evsel.c
index 9a87e867a7ec..17cba35becc7 100644
--- a/tools/perf/lib/evsel.c
+++ b/tools/perf/lib/evsel.c
@@ -3,7 +3,8 @@
 #include <linux/list.h>
 #include <internal/evsel.h>
 
-void perf_evsel__init(struct perf_evsel *evsel)
+void perf_evsel__init(struct perf_evsel *evsel, struct perf_event_attr *attr)
 {
         INIT_LIST_HEAD(&evsel->node);
+        evsel->attr = *attr;
 }
diff --git a/tools/perf/lib/include/internal/evsel.h b/tools/perf/lib/include/internal/evsel.h
index 690943d0408a..c2e0bd104c94 100644
--- a/tools/perf/lib/include/internal/evsel.h
+++ b/tools/perf/lib/include/internal/evsel.h
@@ -2,8 +2,12 @@
 #ifndef __LIBPERF_INTERNAL_EVSEL_H
 #define __LIBPERF_INTERNAL_EVSEL_H
 
+#include <linux/types.h>
+#include <linux/perf_event.h>
+
 struct perf_evsel {
         struct list_head        node;
+        struct perf_event_attr  attr;
 };
 
 #endif /* __LIBPERF_INTERNAL_EVSEL_H */
diff --git a/tools/perf/lib/include/perf/evsel.h b/tools/perf/lib/include/perf/evsel.h
index b4d074a3684b..295583b89f46 100644
--- a/tools/perf/lib/include/perf/evsel.h
+++ b/tools/perf/lib/include/perf/evsel.h
@@ -5,7 +5,9 @@
 #include <perf/core.h>
 
 struct perf_evsel;
+struct perf_event_attr;
 
-LIBPERF_API void perf_evsel__init(struct perf_evsel *evsel);
+LIBPERF_API void perf_evsel__init(struct perf_evsel *evsel,
+                                  struct perf_event_attr *attr);
 
 #endif /* __LIBPERF_EVSEL_H */