From 4443e6d7704ee85412e5cb0a0181d7ceee7e984f Mon Sep 17 00:00:00 2001 From: Jiri Olsa Date: Sat, 27 Jul 2019 22:47:58 +0200 Subject: libperf: Add 'event_copy' to 'struct perf_mmap' 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 Cc: Alexander Shishkin Cc: Michael Petlan Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lore.kernel.org/lkml/20190913132355.21634-18-jolsa@kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/lib/include/internal/mmap.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/perf/lib/include') diff --git a/tools/perf/lib/include/internal/mmap.h b/tools/perf/lib/include/internal/mmap.h index 47c09f375fb6..10653b6e864e 100644 --- a/tools/perf/lib/include/internal/mmap.h +++ b/tools/perf/lib/include/internal/mmap.h @@ -2,10 +2,14 @@ #ifndef __LIBPERF_INTERNAL_MMAP_H #define __LIBPERF_INTERNAL_MMAP_H +#include #include #include #include +/* 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 */ -- cgit v1.2.3