libperf: Add perf_thread_map struct

Add perf_thread_map struct to libperf.

It's added as a declaration into into:

  include/perf/threadmap.h

which will be included by users.

The perf_thread_map struct definition is added into:

  include/internal/threadmap.h

which is not to be included by users, but shared within perf and
libperf.

We tried the total separation of the perf_thread_map struct in libperf,
but it lead to complications and much bigger changes in perf code, so we
decided to share the declaration.

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/20190721112506.12306-32-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/lib/Build b/tools/perf/lib/Build
index 195b274db49aefcf440dbbed43a4200d7a8dc9fe..9beadfc81a71c7af82360712d4bfd0e30a9d406c 100644 (file)
--- a/tools/perf/lib/Build
+++ b/tools/perf/lib/Build
@@ -1,2 +1,3 @@
 libperf-y += core.o
 libperf-y += cpumap.o
+libperf-y += threadmap.o

diff --git a/tools/perf/lib/include/internal/threadmap.h b/tools/perf/lib/include/internal/threadmap.h
new file mode 100644 (file)
index 0000000..c808800
--- /dev/null
+++ b/tools/perf/lib/include/internal/threadmap.h
@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LIBPERF_INTERNAL_THREADMAP_H
+#define __LIBPERF_INTERNAL_THREADMAP_H
+
+#include <linux/refcount.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+struct thread_map_data {
+       pid_t    pid;
+       char    *comm;
+};
+
+struct perf_thread_map {
+       refcount_t      refcnt;
+       int             nr;
+       int             err_thread;
+       struct thread_map_data map[];
+};
+
+#endif /* __LIBPERF_INTERNAL_THREADMAP_H */

diff --git a/tools/perf/lib/include/perf/threadmap.h b/tools/perf/lib/include/perf/threadmap.h
new file mode 100644 (file)
index 0000000..dc3a383
--- /dev/null
+++ b/tools/perf/lib/include/perf/threadmap.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LIBPERF_THREADMAP_H
+#define __LIBPERF_THREADMAP_H
+
+struct perf_thread_map;
+
+#endif /* __LIBPERF_THREADMAP_H */

diff --git a/tools/perf/lib/threadmap.c b/tools/perf/lib/threadmap.c
new file mode 100644 (file)
index 0000000..163dc60
--- /dev/null
+++ b/tools/perf/lib/threadmap.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <perf/threadmap.h>
+#include <stdlib.h>
+#include <linux/refcount.h>
+#include <internal/threadmap.h>

diff --git a/tools/perf/util/thread_map.h b/tools/perf/util/thread_map.h
index 9358b1b6e657e7b5ea6b0a6b57addb563a7eff84..5a7be6f8934fd1a7e87d7686feb60667da89c4c8 100644 (file)
--- a/tools/perf/util/thread_map.h
+++ b/tools/perf/util/thread_map.h
@@ -5,18 +5,7 @@
 #include <sys/types.h>
 #include <stdio.h>
 #include <linux/refcount.h>
-
-struct thread_map_data {
-       pid_t    pid;
-       char    *comm;
-};
-
-struct perf_thread_map {
-       refcount_t refcnt;
-       int nr;
-       int err_thread;
-       struct thread_map_data map[];
-};
+#include <internal/threadmap.h>
 
 struct thread_map_event;