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perf tools: Record whether a dso has data

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Add 'data.status' to record whether a dso has data (i.e. an object
file).  This is used to avoid repeatedly creating the file name and
attempting to open a file that is not present.

Signed-off-by: Adrian 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/1406035081-14301-10-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter
2014-07-22 16:17:18 +03:00
committed by Arnaldo Carvalho de Melo
parent 578bea4005
commit c27697d6de
2 changed files with 22 additions and 8 deletions
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7
tools/perf/util/dso.h
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@@ -40,6 +40,12 @@ enum dso_swap_type {
DSO_SWAP__YES,
};
enum dso_data_status {
DSO_DATA_STATUS_ERROR = -1,
DSO_DATA_STATUS_UNKNOWN = 0,
DSO_DATA_STATUS_OK = 1,
};
#define DSO__SWAP(dso, type, val) \
({ \
type ____r = val; \
@@ -104,6 +110,7 @@ struct dso {
struct {
struct rb_root cache;
int fd;
int status;
size_t file_size;
struct list_head open_entry;
} data;