Commit-ID: 288be943b5024729cd6809b61b62f727960178f3
Gitweb: http://git.kernel.org/tip/288be943b5024729cd6809b61b62f727960178f3
Author: Adrian Hunter <adrian.hunter@xxxxxxxxx>
AuthorDate: Tue, 22 Jul 2014 16:17:19 +0300
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Wed, 23 Jul 2014 11:23:44 -0300
perf tools: Add dso__data_status_seen()
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@xxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1406035081-14301-11-git-send-email-adrian.hunter@xxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
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,
--
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