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libperf: Add 'event_copy' to 'struct perf_mmap'

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Move 'event_copy' from tools/perf's mmap to libperf's perf_mmap struct.

Committer notes:

Add linux/compiler.h as we need it for '__aligned'.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lore.kernel.org/lkml/20190913132355.21634-18-jolsa@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa
2019-07-27 22:47:58 +02:00
committed by Arnaldo Carvalho de Melo
parent 8df7a86981
commit 4443e6d770
3 changed files with 7 additions and 3 deletions
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5
tools/perf/lib/include/internal/mmap.h
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@@ -2,10 +2,14 @@
#ifndef __LIBPERF_INTERNAL_MMAP_H
#define __LIBPERF_INTERNAL_MMAP_H
#include <linux/compiler.h>
#include <linux/refcount.h>
#include <linux/types.h>
#include <stdbool.h>
/* perf sample has 16 bits size limit */
#define PERF_SAMPLE_MAX_SIZE (1 << 16)
/**
* struct perf_mmap - perf's ring buffer mmap details
*
@@ -21,6 +25,7 @@ struct perf_mmap {
u64 start;
u64 end;
bool overwrite;
char event_copy[PERF_SAMPLE_MAX_SIZE] __aligned(8);
};
#endif /* __LIBPERF_INTERNAL_MMAP_H */