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Commit d5652d86 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

perf session: Add ability to skip 4GiB or more 



A session can be made to skip portions of the input file.  Do not limit
that size to 32-bits.

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/1406143198-20732-2-git-send-email-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 6f917c70

tools/perf/util/session.c

+8 −7
Original line number Diff line number Diff line
@@ -994,8 +994,10 @@ static int perf_session_deliver_event(struct perf_session *session, 
	}

}



static int perf_session__process_user_event(struct perf_session *session, union perf_event *event,

					    struct perf_tool *tool, u64 file_offset)

static s64 perf_session__process_user_event(struct perf_session *session,

					    union perf_event *event,

					    struct perf_tool *tool,

					    u64 file_offset)

{

	int fd = perf_data_file__fd(session->file);

	int err;
@@ -1037,7 +1039,7 @@ static void event_swap(union perf_event *event, bool sample_id_all) 
		swap(event, sample_id_all);

}



static int perf_session__process_event(struct perf_session *session,

static s64 perf_session__process_event(struct perf_session *session,

				       union perf_event *event,

				       struct perf_tool *tool,

				       u64 file_offset)
@@ -1148,7 +1150,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session, 
	union perf_event *event;

	uint32_t size, cur_size = 0;

	void *buf = NULL;

	int skip = 0;

	s64 skip = 0;

	u64 head;

	ssize_t err;

	void *p;
@@ -1277,14 +1279,13 @@ int __perf_session__process_events(struct perf_session *session, 
				   u64 file_size, struct perf_tool *tool)

{

	int fd = perf_data_file__fd(session->file);

	u64 head, page_offset, file_offset, file_pos;

	u64 head, page_offset, file_offset, file_pos, size;

	int err, mmap_prot, mmap_flags, map_idx = 0;

	size_t	mmap_size;

	char *buf, *mmaps[NUM_MMAPS];

	union perf_event *event;

	uint32_t size;

	struct ui_progress prog;

	int skip;

	s64 skip;



	perf_tool__fill_defaults(tool);