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perf: Convert perf header attrs into attr events

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Bypasses the attr perf header code and replaces it with a
synthesized event and processing function that accomplishes the
same thing, used when reading/writing perf data to/from a pipe.

Making the attrs into events allows them to be streamed over a
pipe along with the rest of the header data (in later patches).
It also paves the way to allowing events to be added and removed
from perf sessions dynamically.

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: <1270184365-8281-6-git-send-email-tzanussi@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Tom Zanussi 2010-04-01 23:59:19 -05:00 • committed by Ingo Molnar
parent c239da3b4b
commit 2c46dbb517
8 changed files with 136 additions and 2 deletions
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8
tools/perf/util/header.h
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@ -95,4 +95,12 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
const char *name, bool is_kallsyms);
int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir);
int event__synthesize_attr(struct perf_event_attr *attr, u16 ids, u64 *id,
event__handler_t process,
struct perf_session *session);
int event__synthesize_attrs(struct perf_header *self,
event__handler_t process,
struct perf_session *session);
int event__process_attr(event_t *self, struct perf_session *session);
#endif /* __PERF_HEADER_H */