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Date: Wed, 8 May 2013 22:31:39 -0600 From: David Ahern <dsahern@...il.com> To: linux-kernel@...r.kernel.org Cc: acme@...stprotocols.net, mingo@...nel.org, fweisbec@...il.com, peterz@...radead.org, jolsa@...hat.com, namhyung@...nel.org, xiaoguangrong@...ux.vnet.ibm.com, David Ahern <dsahern@...il.com> Subject: [PATCH 03/13] perf evlist: add initialzation function for tracepoints Handles initializations typically done as part of processing the file header and HEADER_TRACING_DATA event. Signed-off-by: David Ahern <dsahern@...il.com> Cc: Arnaldo Carvalho de Melo <acme@...stprotocols.net> Cc: Ingo Molnar <mingo@...nel.org> Cc: Frederic Weisbecker <fweisbec@...il.com> Cc: Peter Zijlstra <peterz@...radead.org> Cc: Jiri Olsa <jolsa@...hat.com> Cc: Namhyung Kim <namhyung@...nel.org> Cc: Xiao Guangrong <xiaoguangrong@...ux.vnet.ibm.com> --- tools/perf/util/evlist.c | 27 +++++++++++++++++++++++++++ tools/perf/util/evlist.h | 3 +++ 2 files changed, 30 insertions(+) diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c index 72b9551..45dc1ee 100644 --- a/tools/perf/util/evlist.c +++ b/tools/perf/util/evlist.c @@ -14,6 +14,7 @@ #include "target.h" #include "evlist.h" #include "evsel.h" +#include "trace-event.h" #include <unistd.h> #include "parse-events.h" @@ -234,6 +235,32 @@ int perf_evlist__prepare_tracepoint_events(struct perf_evlist *evlist, return 0; } +int perf_evlist__trace_init(struct perf_evlist *evlist, + struct perf_session *session) +{ + struct tracing_data *tdata; + char temp_file[] = "/tmp/perf-XXXXXXXX"; + int fd; + + fd = mkstemp(temp_file); + if (fd < 0) { + pr_err("mkstemp failed\n"); + return -1; + } + unlink(temp_file); + + tdata = tracing_data_get(&evlist->entries, fd, false); + if (!tdata) + return -1; + + lseek(fd, 0, SEEK_SET); + (void) trace_report(fd, &session->pevent, false); + tracing_data_put(tdata); + + return perf_evlist__prepare_tracepoint_events(evlist, session->pevent); +} + + static int trace_event__id(const char *evname) { char *filename, *colon; diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h index c2cf183..c579f3d 100644 --- a/tools/perf/util/evlist.h +++ b/tools/perf/util/evlist.h @@ -8,6 +8,7 @@ #include "event-parse.h" #include "evsel.h" #include "util.h" +#include "session.h" #include <unistd.h> struct pollfd; @@ -66,6 +67,8 @@ int perf_evlist__prepare_tracepoint_events(struct perf_evlist *evlist, int perf_evlist__add_tracepoints(struct perf_evlist *evlist, const char * const tracepoints[], size_t nr_tracepoints); +int perf_evlist__trace_init(struct perf_evlist *evlist, + struct perf_session *session); #define perf_evlist__add_default_attrs(evlist, array) \ __perf_evlist__add_default_attrs(evlist, array, ARRAY_SIZE(array)) -- 1.7.10.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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