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Commit 288be943 authored by Adrian Hunter's avatar Adrian Hunter Committed by Arnaldo Carvalho de Melo
Browse files

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: 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/1406035081-14301-11-git-send-email-adrian.hunter@intel.com


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c27697d6

tools/perf/util/dso.c

+12 −0
Original line number Diff line number Diff line
@@ -359,6 +359,18 @@ int dso__data_fd(struct dso *dso, struct machine *machine) 
	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)

{

tools/perf/util/dso.h

+6 −0
Original line number Diff line number Diff line
@@ -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,