forked from Minki/linux
0a3eba3ad6
This change enables the db export api to export callchains. This is accomplished by adding callchains obtained from samples to the call_path_root structure and exporting them via the current call path export API. While the current API does support exporting call paths, this is not supported when sampling. This commit addresses that missing feature by allowing the export of call paths when callchains are present in samples. Summary: - This feature is activated by initializing the call_path_root member inside the db_export structure to a non-null value. - Callchains are resolved with thread__resolve_callchain() and then stored and exported by adding a call path under call path root. - Symbol and DSO for each callchain node are exported via db_ids_from_al() This commit puts in place infrastructure to be used by subsequent commits, and by itself, does not introduce any user-visible changes. Signed-off-by: Chris Phlipot <cphlipot0@gmail.com> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1461831551-12213-4-git-send-email-cphlipot0@gmail.com [ Made adjustments suggested by Adrian Hunter, see thread via this cset's Link: tag ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
109 lines
3.7 KiB
C
109 lines
3.7 KiB
C
/*
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* db-export.h: Support for exporting data suitable for import to a database
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* Copyright (c) 2014, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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*/
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#ifndef __PERF_DB_EXPORT_H
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#define __PERF_DB_EXPORT_H
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#include <linux/types.h>
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#include <linux/list.h>
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struct perf_evsel;
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struct machine;
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struct thread;
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struct comm;
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struct dso;
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struct perf_sample;
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struct addr_location;
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struct call_return_processor;
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struct call_path_root;
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struct call_path;
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struct call_return;
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struct export_sample {
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union perf_event *event;
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struct perf_sample *sample;
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struct perf_evsel *evsel;
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struct addr_location *al;
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u64 db_id;
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u64 comm_db_id;
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u64 dso_db_id;
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u64 sym_db_id;
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u64 offset; /* ip offset from symbol start */
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u64 addr_dso_db_id;
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u64 addr_sym_db_id;
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u64 addr_offset; /* addr offset from symbol start */
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};
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struct db_export {
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int (*export_evsel)(struct db_export *dbe, struct perf_evsel *evsel);
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int (*export_machine)(struct db_export *dbe, struct machine *machine);
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int (*export_thread)(struct db_export *dbe, struct thread *thread,
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u64 main_thread_db_id, struct machine *machine);
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int (*export_comm)(struct db_export *dbe, struct comm *comm);
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int (*export_comm_thread)(struct db_export *dbe, u64 db_id,
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struct comm *comm, struct thread *thread);
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int (*export_dso)(struct db_export *dbe, struct dso *dso,
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struct machine *machine);
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int (*export_symbol)(struct db_export *dbe, struct symbol *sym,
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struct dso *dso);
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int (*export_branch_type)(struct db_export *dbe, u32 branch_type,
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const char *name);
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int (*export_sample)(struct db_export *dbe, struct export_sample *es);
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int (*export_call_path)(struct db_export *dbe, struct call_path *cp);
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int (*export_call_return)(struct db_export *dbe,
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struct call_return *cr);
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struct call_return_processor *crp;
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struct call_path_root *cpr;
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u64 evsel_last_db_id;
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u64 machine_last_db_id;
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u64 thread_last_db_id;
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u64 comm_last_db_id;
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u64 comm_thread_last_db_id;
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u64 dso_last_db_id;
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u64 symbol_last_db_id;
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u64 sample_last_db_id;
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u64 call_path_last_db_id;
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u64 call_return_last_db_id;
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struct list_head deferred;
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};
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int db_export__init(struct db_export *dbe);
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int db_export__flush(struct db_export *dbe);
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void db_export__exit(struct db_export *dbe);
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int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel);
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int db_export__machine(struct db_export *dbe, struct machine *machine);
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int db_export__thread(struct db_export *dbe, struct thread *thread,
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struct machine *machine, struct comm *comm);
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int db_export__comm(struct db_export *dbe, struct comm *comm,
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struct thread *main_thread);
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int db_export__comm_thread(struct db_export *dbe, struct comm *comm,
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struct thread *thread);
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int db_export__dso(struct db_export *dbe, struct dso *dso,
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struct machine *machine);
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int db_export__symbol(struct db_export *dbe, struct symbol *sym,
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struct dso *dso);
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int db_export__branch_type(struct db_export *dbe, u32 branch_type,
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const char *name);
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int db_export__sample(struct db_export *dbe, union perf_event *event,
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struct perf_sample *sample, struct perf_evsel *evsel,
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struct addr_location *al);
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int db_export__branch_types(struct db_export *dbe);
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int db_export__call_path(struct db_export *dbe, struct call_path *cp);
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int db_export__call_return(struct db_export *dbe, struct call_return *cr);
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#endif
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