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libperf: Add perf_cpu_map struct

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Add perf_cpu_map struct to libperf.

It's added as a declaration 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.

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/20190721112506.12306-29-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-07-21 13:24:15 +02:00 committed by Arnaldo Carvalho de Melo
parent a1556f8479
commit 959b83c769
5 changed files with 27 additions and 6 deletions
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1
tools/perf/lib/Build
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@ -1 +1,2 @@
libperf-y += core.o
libperf-y += cpumap.o

5
tools/perf/lib/cpumap.c Normal file
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@ -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>

13
tools/perf/lib/include/internal/cpumap.h Normal file
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@ -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 */

7
tools/perf/lib/include/perf/cpumap.h Normal file
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@ -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 */

7
tools/perf/util/cpumap.h
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@ -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);