Commit 6a11f92e authored May 16, 2012 by Jiri Olsa Committed by Arnaldo Carvalho de Melo May 22, 2012

perf tools: Add union u64_swap type for swapping u64 data



The following union:
  union {
        u64 val64;
        u32 val32[2];
  } u;

is used on more than one place in perf code and will be used more in
upcomming patches.

Adding union u64_swap to have it defined globaly so we dont need to
redefine it all the time.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Tested-by: David Ahern <dsahern@gmail.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1337151548-2396-4-git-send-email-jolsa@redhat.com


Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

parent e108c66e

tools/perf/util/evsel.c

+2 −8

Original line number	Diff line number	Diff line
		@@ -462,10 +462,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
		* used for cross-endian analysis. See git commit 65014ab3
		* for why this goofiness is needed.
		*/
		union {
		u64 val64;
		u32 val32[2];
		} u;
		union u64_swap u;

		memset(data, 0, sizeof(*data));
		data->cpu = data->pid = data->tid = -1;
		@@ -608,10 +605,7 @@ int perf_event__synthesize_sample(union perf_event *event, u64 type,
		* used for cross-endian analysis. See git commit 65014ab3
		* for why this goofiness is needed.
		*/
		union {
		u64 val64;
		u32 val32[2];
		} u;
		union u64_swap u;

		array = event->sample.array;

tools/perf/util/types.h

+5 −0

Original line number	Diff line number	Diff line
		@@ -16,4 +16,9 @@ typedef signed short s16;
		typedef unsigned char u8;
		typedef signed char s8;

		union u64_swap {
		u64 val64;
		u32 val32[2];
		};

		#endif /* __PERF_TYPES_H */