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authorTom Zanussi <tzanussi@gmail.com>2010-04-01 23:59:15 -0500
committerIngo Molnar <mingo@elte.hu>2010-04-14 11:56:05 +0200
commit8dc58101f2c838355d44402aa77646649d10dbec (patch)
treed4cc08cccfec56d37dee4c4b2383ffe56d176494 /tools/perf/builtin-record.c
parentc05556421742eb47f80301767653a4bcb19de9de (diff)
downloadlinux-2.6.34-ux500-8dc58101f2c838355d44402aa77646649d10dbec.tar.gz
perf: Add pipe-specific header read/write and event processing code
This patch makes several changes to allow the perf event stream to be sent and received over a pipe: - adds pipe-specific versions of the header read/write code - adds pipe-specific version of the event processing code - adds a range of event types to be used for header or other pseudo events, above the range used by the kernel - checks the return value of event handlers, which they can use to skip over large events during event processing rather than actually reading them into event objects. - unifies the multiple do_read() functions and updates its users. Note that none of these changes affect the existing perf data file format or processing - this code only comes into play if perf output is sent to stdout (or is read from stdin). Signed-off-by: Tom Zanussi <tzanussi@gmail.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: fweisbec@gmail.com Cc: rostedt@goodmis.org Cc: k-keiichi@bx.jp.nec.com Cc: acme@ghostprotocols.net LKML-Reference: <1270184365-8281-2-git-send-email-tzanussi@gmail.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/builtin-record.c')
-rw-r--r--tools/perf/builtin-record.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 9a951368723..d060fc50c8a 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -487,7 +487,7 @@ static int __cmd_record(int argc, const char **argv)
}
if (!file_new) {
- err = perf_header__read(&session->header, output);
+ err = perf_header__read(session, output);
if (err < 0)
return err;
}