From 0db15b1e84a59e6e1da5fe6e74c35fe52fa29d92 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 23 Oct 2014 13:45:13 +0300 Subject: perf tools: Add facility to export data in database-friendly way This patch introduces an abstraction for exporting sample data in a database-friendly way. The abstraction does not implement the actual output. A subsequent patch takes this facility into use for extending the script interface. The abstraction is needed because static data like symbols, dsos, comms etc need to be exported only once. That means allocating them a unique identifier and recording it on each structure. The member 'db_id' is used for that. 'db_id' is just a 64-bit sequence number. Exporting centres around the db_export__sample() function which exports the associated data structures if they have not yet been allocated a db_id. Signed-off-by: Adrian Hunter Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/r/1414061124-26830-6-git-send-email-adrian.hunter@intel.com [ committer note: Stash db_id using symbol_conf.priv_size + symbol__priv() and foo->priv areas ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/db-export.h | 86 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 tools/perf/util/db-export.h (limited to 'tools/perf/util/db-export.h') diff --git a/tools/perf/util/db-export.h b/tools/perf/util/db-export.h new file mode 100644 index 000000000000..b3643e8e5750 --- /dev/null +++ b/tools/perf/util/db-export.h @@ -0,0 +1,86 @@ +/* + * db-export.h: Support for exporting data suitable for import to a database + * Copyright (c) 2014, Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + */ + +#ifndef __PERF_DB_EXPORT_H +#define __PERF_DB_EXPORT_H + +#include + +struct perf_evsel; +struct machine; +struct thread; +struct comm; +struct dso; +struct perf_sample; +struct addr_location; + +struct export_sample { + union perf_event *event; + struct perf_sample *sample; + struct perf_evsel *evsel; + struct thread *thread; + struct addr_location *al; + u64 db_id; + u64 comm_db_id; + u64 dso_db_id; + u64 sym_db_id; + u64 offset; /* ip offset from symbol start */ + u64 addr_dso_db_id; + u64 addr_sym_db_id; + u64 addr_offset; /* addr offset from symbol start */ +}; + +struct db_export { + int (*export_evsel)(struct db_export *dbe, struct perf_evsel *evsel); + int (*export_machine)(struct db_export *dbe, struct machine *machine); + int (*export_thread)(struct db_export *dbe, struct thread *thread, + u64 main_thread_db_id, struct machine *machine); + int (*export_comm)(struct db_export *dbe, struct comm *comm); + int (*export_comm_thread)(struct db_export *dbe, u64 db_id, + struct comm *comm, struct thread *thread); + int (*export_dso)(struct db_export *dbe, struct dso *dso, + struct machine *machine); + int (*export_symbol)(struct db_export *dbe, struct symbol *sym, + struct dso *dso); + int (*export_sample)(struct db_export *dbe, struct export_sample *es); + u64 evsel_last_db_id; + u64 machine_last_db_id; + u64 thread_last_db_id; + u64 comm_last_db_id; + u64 comm_thread_last_db_id; + u64 dso_last_db_id; + u64 symbol_last_db_id; + u64 sample_last_db_id; +}; + +int db_export__init(struct db_export *dbe); +void db_export__exit(struct db_export *dbe); +int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel); +int db_export__machine(struct db_export *dbe, struct machine *machine); +int db_export__thread(struct db_export *dbe, struct thread *thread, + struct machine *machine, struct comm *comm); +int db_export__comm(struct db_export *dbe, struct comm *comm, + struct thread *main_thread); +int db_export__comm_thread(struct db_export *dbe, struct comm *comm, + struct thread *thread); +int db_export__dso(struct db_export *dbe, struct dso *dso, + struct machine *machine); +int db_export__symbol(struct db_export *dbe, struct symbol *sym, + struct dso *dso); +int db_export__sample(struct db_export *dbe, union perf_event *event, + struct perf_sample *sample, struct perf_evsel *evsel, + struct thread *thread, struct addr_location *al); + +#endif -- cgit v1.2.3