perf evlist: Introduce {prepare,start}_workload refactored from 'perf record'
So that we can easily start a workload in other tools.
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-zdsksd4aphu0nltg2lpwsw3x@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index 231c06f..07d56b3 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -6,6 +6,7 @@
#include "../perf.h"
#include "event.h"
#include "util.h"
+#include <unistd.h>
struct pollfd;
struct thread_map;
@@ -22,6 +23,10 @@
int nr_fds;
int nr_mmaps;
int mmap_len;
+ struct {
+ int cork_fd;
+ pid_t pid;
+ } workload;
bool overwrite;
union perf_event event_copy;
struct perf_mmap *mmap;
@@ -68,6 +73,11 @@
void perf_evlist__config_attrs(struct perf_evlist *evlist,
struct perf_record_opts *opts);
+int perf_evlist__prepare_workload(struct perf_evlist *evlist,
+ struct perf_record_opts *opts,
+ const char *argv[]);
+int perf_evlist__start_workload(struct perf_evlist *evlist);
+
int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);