8755a8f27a
The trace event name<->id mapping is dynamic for each kernel compile. In order for perf.data to be useable outside the actual system, we thus need to store a table of this mapping for later use. This patch adds this table to perf.data, and provides helper functions for lookup up fields from this table. To avoid mistakes, lookup-from-table is kept completely seprate from lookup-from-local-debugfs. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20090912130405.6960d099@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
48 lines
1.1 KiB
C
48 lines
1.1 KiB
C
#ifndef _PERF_HEADER_H
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#define _PERF_HEADER_H
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#include "../../../include/linux/perf_counter.h"
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#include <sys/types.h>
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#include "types.h"
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struct perf_header_attr {
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struct perf_counter_attr attr;
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int ids, size;
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u64 *id;
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off_t id_offset;
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};
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struct perf_header {
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int frozen;
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int attrs, size;
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struct perf_header_attr **attr;
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s64 attr_offset;
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u64 data_offset;
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u64 data_size;
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u64 event_offset;
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u64 event_size;
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};
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struct perf_header *perf_header__read(int fd);
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void perf_header__write(struct perf_header *self, int fd);
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void perf_header__add_attr(struct perf_header *self,
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struct perf_header_attr *attr);
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void perf_header__push_event(u64 id, const char *name);
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char *perf_header__find_event(u64 id);
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struct perf_header_attr *
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perf_header_attr__new(struct perf_counter_attr *attr);
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void perf_header_attr__add_id(struct perf_header_attr *self, u64 id);
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u64 perf_header__sample_type(struct perf_header *header);
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struct perf_counter_attr *
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perf_header__find_attr(u64 id, struct perf_header *header);
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struct perf_header *perf_header__new(void);
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#endif /* _PERF_HEADER_H */
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