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perf tools: Add dso__data_status_seen()

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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 <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Namhyung Kim <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Stephane Eranian <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Adrian Hunter 2014-07-22 16:17:19 +03:00 • committed by Arnaldo Carvalho de Melo
commit 288be943b5
2 changed files with 18 additions and 0 deletions
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12
tools/perf/util/dso.c
View file

@ -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)
{

6
tools/perf/util/dso.h
View file

@ -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,