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Subject[PATCH 28/79] libperf: Add perf_cpu_map struct
Date
Adding perf_cpu_map struct into libperf.

It's added as a declaration into into:
include/perf/cpumap.h
which will be included by users.

The perf_cpu_map struct definition is added into:
include/internal/cpumap.h

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

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

Link: http://lkml.kernel.org/n/tip-vhtr6a8apr7vkh2tou0r8896@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/lib/Build | 1 +
tools/perf/lib/cpumap.c | 5 +++++
tools/perf/lib/include/internal/cpumap.h | 13 +++++++++++++
tools/perf/lib/include/perf/cpumap.h | 7 +++++++
tools/perf/util/cpumap.h | 7 +------
5 files changed, 27 insertions(+), 6 deletions(-)
create mode 100644 tools/perf/lib/cpumap.c
create mode 100644 tools/perf/lib/include/internal/cpumap.h
create mode 100644 tools/perf/lib/include/perf/cpumap.h

diff --git a/tools/perf/lib/Build b/tools/perf/lib/Build
index 5196958cec01..195b274db49a 100644
--- a/tools/perf/lib/Build
+++ b/tools/perf/lib/Build
@@ -1 +1,2 @@
libperf-y += core.o
+libperf-y += cpumap.o
diff --git a/tools/perf/lib/cpumap.c b/tools/perf/lib/cpumap.c
new file mode 100644
index 000000000000..86a199c26f20
--- /dev/null
+++ b/tools/perf/lib/cpumap.c
@@ -0,0 +1,5 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <perf/cpumap.h>
+#include <stdlib.h>
+#include <linux/refcount.h>
+#include <internal/cpumap.h>
diff --git a/tools/perf/lib/include/internal/cpumap.h b/tools/perf/lib/include/internal/cpumap.h
new file mode 100644
index 000000000000..53ce95374b05
--- /dev/null
+++ b/tools/perf/lib/include/internal/cpumap.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LIBPERF_INTERNAL_CPUMAP_H
+#define __LIBPERF_INTERNAL_CPUMAP_H
+
+#include <linux/refcount.h>
+
+struct perf_cpu_map {
+ refcount_t refcnt;
+ int nr;
+ int map[];
+};
+
+#endif /* __LIBPERF_INTERNAL_CPUMAP_H */
diff --git a/tools/perf/lib/include/perf/cpumap.h b/tools/perf/lib/include/perf/cpumap.h
new file mode 100644
index 000000000000..8355d3ce7d0c
--- /dev/null
+++ b/tools/perf/lib/include/perf/cpumap.h
@@ -0,0 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __LIBPERF_CPUMAP_H
+#define __LIBPERF_CPUMAP_H
+
+struct perf_cpu_map;
+
+#endif /* __LIBPERF_CPUMAP_H */
diff --git a/tools/perf/util/cpumap.h b/tools/perf/util/cpumap.h
index 22729beae959..c2ba9ae195f7 100644
--- a/tools/perf/util/cpumap.h
+++ b/tools/perf/util/cpumap.h
@@ -5,16 +5,11 @@
#include <stdio.h>
#include <stdbool.h>
#include <linux/refcount.h>
+#include <internal/cpumap.h>

#include "perf.h"
#include "util/debug.h"

-struct perf_cpu_map {
- refcount_t refcnt;
- int nr;
- int map[];
-};
-
struct perf_cpu_map *cpu_map__new(const char *cpu_list);
struct perf_cpu_map *cpu_map__empty_new(int nr);
struct perf_cpu_map *cpu_map__dummy_new(void);
--
2.21.0
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