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perf tools: Add call information to the database export API

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Make it possible for the database export API to use the enhanced thread
stack and export detailed information about paired calls and returns.

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/1414678188-14946-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Adrian Hunter 2014-10-30 16:09:46 +02:00 • committed by Arnaldo Carvalho de Melo
parent c29414f5cf
commit 88f50d602f
2 changed files with 63 additions and 1 deletions
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52
tools/perf/util/db-export.c
View file

@ -21,6 +21,7 @@
#include "comm.h"
#include "symbol.h"
#include "event.h"
#include "thread-stack.h"
#include "db-export.h"
int db_export__init(struct db_export *dbe)
@ -29,8 +30,10 @@ int db_export__init(struct db_export *dbe)
return 0;
}
void db_export__exit(struct db_export *dbe __maybe_unused)
void db_export__exit(struct db_export *dbe)
{
call_return_processor__free(dbe->crp);
dbe->crp = NULL;
}
int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel)
@ -270,6 +273,13 @@ int db_export__sample(struct db_export *dbe, union perf_event *event,
&es.addr_sym_db_id, &es.addr_offset);
if (err)
return err;
if (dbe->crp) {
err = thread_stack__process(thread, comm, sample, al,
&addr_al, es.db_id,
dbe->crp);
if (err)
return err;
}
}
if (dbe->export_sample)
@ -316,3 +326,43 @@ int db_export__branch_types(struct db_export *dbe)
}
return err;
}
int db_export__call_path(struct db_export *dbe, struct call_path *cp)
{
int err;
if (cp->db_id)
return 0;
if (cp->parent) {
err = db_export__call_path(dbe, cp->parent);
if (err)
return err;
}
cp->db_id = ++dbe->call_path_last_db_id;
if (dbe->export_call_path)
return dbe->export_call_path(dbe, cp);
return 0;
}
int db_export__call_return(struct db_export *dbe, struct call_return *cr)
{
int err;
if (cr->db_id)
return 0;
err = db_export__call_path(dbe, cr->cp);
if (err)
return err;
cr->db_id = ++dbe->call_return_last_db_id;
if (dbe->export_call_return)
return dbe->export_call_return(dbe, cr);
return 0;
}