[PATCH 10/52] perf tools: Add dso__data_status_seen()

Adrian Hunter
2014-07-22T13:20:17Z

Add a function to track whether a caller has seen
the data status of a dso. This is needed to
enable callers to report the error exactly once
only per dso.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
tools/perf/util/dso.c | 12 ++++++++++++
tools/perf/util/dso.h | 6 ++++++
2 files changed, 18 insertions(+)

diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
index 8827db3..84e4a05 100644
--- a/tools/perf/util/dso.c
+++ b/tools/perf/util/dso.c
@@ -359,6 +359,18 @@ out:
return dso->data.fd;
}

+bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by)
+{
+ u32 flag = 1 << by;
+
+ if (dso->data.status_seen & flag)
+ return true;
+
+ dso->data.status_seen |= flag;
+
+ return false;
+}
+
static void
dso_cache__free(struct rb_root *root)
{
diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
index aeb7bcb..c805f60 100644
--- a/tools/perf/util/dso.h
+++ b/tools/perf/util/dso.h
@@ -46,6 +46,10 @@ enum dso_data_status {
DSO_DATA_STATUS_OK = 1,
};

+enum dso_data_status_seen {
+ DSO_DATA_STATUS_SEEN_ITRACE,
+};
+
#define DSO__SWAP(dso, type, val) \
({ \
type ____r = val; \
@@ -111,6 +115,7 @@ struct dso {
struct rb_root cache;
int fd;
int status;
+ u32 status_seen;
size_t file_size;
struct list_head open_entry;
} data;
@@ -203,6 +208,7 @@ ssize_t dso__data_read_offset(struct dso *dso, struct machine *machine,
ssize_t dso__data_read_addr(struct dso *dso, struct map *map,
struct machine *machine, u64 addr,
u8 *data, ssize_t size);
+bool dso__data_status_seen(struct dso *dso, enum dso_data_status_seen by);

struct map *dso__new_map(const char *name);
struct dso *dso__kernel_findnew(struct machine *machine, const char *name,
--
1.8.3.2