1 files changed, 428 insertions, 0 deletions

diff --git a/tools/perf/util/db-export.c b/tools/perf/util/db-export.c
new file mode 100644
index 000000000000..c81dae399763
--- /dev/null
+++ b/tools/perf/util/db-export.c
@@ -0,0 +1,428 @@
+/*
+ * db-export.c: 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.
+ *
+ */
+
+#include <errno.h>
+
+#include "evsel.h"
+#include "machine.h"
+#include "thread.h"
+#include "comm.h"
+#include "symbol.h"
+#include "event.h"
+#include "util.h"
+#include "thread-stack.h"
+#include "db-export.h"
+
+struct deferred_export {
+        struct list_head node;
+        struct comm *comm;
+};
+
+static int db_export__deferred(struct db_export *dbe)
+{
+        struct deferred_export *de;
+        int err;
+
+        while (!list_empty(&dbe->deferred)) {
+                de = list_entry(dbe->deferred.next, struct deferred_export,
+                                node);
+                err = dbe->export_comm(dbe, de->comm);
+                list_del(&de->node);
+                free(de);
+                if (err)
+                        return err;
+        }
+
+        return 0;
+}
+
+static void db_export__free_deferred(struct db_export *dbe)
+{
+        struct deferred_export *de;
+
+        while (!list_empty(&dbe->deferred)) {
+                de = list_entry(dbe->deferred.next, struct deferred_export,
+                                node);
+                list_del(&de->node);
+                free(de);
+        }
+}
+
+static int db_export__defer_comm(struct db_export *dbe, struct comm *comm)
+{
+        struct deferred_export *de;
+
+        de = zalloc(sizeof(struct deferred_export));
+        if (!de)
+                return -ENOMEM;
+
+        de->comm = comm;
+        list_add_tail(&de->node, &dbe->deferred);
+
+        return 0;
+}
+
+int db_export__init(struct db_export *dbe)
+{
+        memset(dbe, 0, sizeof(struct db_export));
+        INIT_LIST_HEAD(&dbe->deferred);
+        return 0;
+}
+
+int db_export__flush(struct db_export *dbe)
+{
+        return db_export__deferred(dbe);
+}
+
+void db_export__exit(struct db_export *dbe)
+{
+        db_export__free_deferred(dbe);
+        call_return_processor__free(dbe->crp);
+        dbe->crp = NULL;
+}
+
+int db_export__evsel(struct db_export *dbe, struct perf_evsel *evsel)
+{
+        if (evsel->db_id)
+                return 0;
+
+        evsel->db_id = ++dbe->evsel_last_db_id;
+
+        if (dbe->export_evsel)
+                return dbe->export_evsel(dbe, evsel);
+
+        return 0;
+}
+
+int db_export__machine(struct db_export *dbe, struct machine *machine)
+{
+        if (machine->db_id)
+                return 0;
+
+        machine->db_id = ++dbe->machine_last_db_id;
+
+        if (dbe->export_machine)
+                return dbe->export_machine(dbe, machine);
+
+        return 0;
+}
+
+int db_export__thread(struct db_export *dbe, struct thread *thread,
+                      struct machine *machine, struct comm *comm)
+{
+        u64 main_thread_db_id = 0;
+        int err;
+
+        if (thread->db_id)
+                return 0;
+
+        thread->db_id = ++dbe->thread_last_db_id;
+
+        if (thread->pid_ != -1) {
+                struct thread *main_thread;
+
+                if (thread->pid_ == thread->tid) {
+                        main_thread = thread;
+                } else {
+                        main_thread = machine__findnew_thread(machine,
+                                                              thread->pid_,
+                                                              thread->pid_);
+                        if (!main_thread)
+                                return -ENOMEM;
+                        err = db_export__thread(dbe, main_thread, machine,
+                                                comm);
+                        if (err)
+                                return err;
+                        if (comm) {
+                                err = db_export__comm_thread(dbe, comm, thread);
+                                if (err)
+                                        return err;
+                        }
+                }
+                main_thread_db_id = main_thread->db_id;
+        }
+
+        if (dbe->export_thread)
+                return dbe->export_thread(dbe, thread, main_thread_db_id,
+                                          machine);
+
+        return 0;
+}
+
+int db_export__comm(struct db_export *dbe, struct comm *comm,
+                    struct thread *main_thread)
+{
+        int err;
+
+        if (comm->db_id)
+                return 0;
+
+        comm->db_id = ++dbe->comm_last_db_id;
+
+        if (dbe->export_comm) {
+                if (main_thread->comm_set)
+                        err = dbe->export_comm(dbe, comm);
+                else
+                        err = db_export__defer_comm(dbe, comm);
+                if (err)
+                        return err;
+        }
+
+        return db_export__comm_thread(dbe, comm, main_thread);
+}
+
+int db_export__comm_thread(struct db_export *dbe, struct comm *comm,
+                           struct thread *thread)
+{
+        u64 db_id;
+
+        db_id = ++dbe->comm_thread_last_db_id;
+
+        if (dbe->export_comm_thread)
+                return dbe->export_comm_thread(dbe, db_id, comm, thread);
+
+        return 0;
+}
+
+int db_export__dso(struct db_export *dbe, struct dso *dso,
+                   struct machine *machine)
+{
+        if (dso->db_id)
+                return 0;
+
+        dso->db_id = ++dbe->dso_last_db_id;
+
+        if (dbe->export_dso)
+                return dbe->export_dso(dbe, dso, machine);
+
+        return 0;
+}
+
+int db_export__symbol(struct db_export *dbe, struct symbol *sym,
+                      struct dso *dso)
+{
+        u64 *sym_db_id = symbol__priv(sym);
+
+        if (*sym_db_id)
+                return 0;
+
+        *sym_db_id = ++dbe->symbol_last_db_id;
+
+        if (dbe->export_symbol)
+                return dbe->export_symbol(dbe, sym, dso);
+
+        return 0;
+}
+
+static struct thread *get_main_thread(struct machine *machine, struct thread *thread)
+{
+        if (thread->pid_ == thread->tid)
+                return thread;
+
+        if (thread->pid_ == -1)
+                return NULL;
+
+        return machine__find_thread(machine, thread->pid_, thread->pid_);
+}
+
+static int db_ids_from_al(struct db_export *dbe, struct addr_location *al,
+                          u64 *dso_db_id, u64 *sym_db_id, u64 *offset)
+{
+        int err;
+
+        if (al->map) {
+                struct dso *dso = al->map->dso;
+
+                err = db_export__dso(dbe, dso, al->machine);
+                if (err)
+                        return err;
+                *dso_db_id = dso->db_id;
+
+                if (!al->sym) {
+                        al->sym = symbol__new(al->addr, 0, 0, "unknown");
+                        if (al->sym)
+                                symbols__insert(&dso->symbols[al->map->type],
+                                                al->sym);
+                }
+
+                if (al->sym) {
+                        u64 *db_id = symbol__priv(al->sym);
+
+                        err = db_export__symbol(dbe, al->sym, dso);
+                        if (err)
+                                return err;
+                        *sym_db_id = *db_id;
+                        *offset = al->addr - al->sym->start;
+                }
+        }
+
+        return 0;
+}
+
+int db_export__branch_type(struct db_export *dbe, u32 branch_type,
+                           const char *name)
+{
+        if (dbe->export_branch_type)
+                return dbe->export_branch_type(dbe, branch_type, name);
+
+        return 0;
+}
+
+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)
+{
+        struct export_sample es = {
+                .event = event,
+                .sample = sample,
+                .evsel = evsel,
+                .thread = thread,
+                .al = al,
+        };
+        struct thread *main_thread;
+        struct comm *comm = NULL;
+        int err;
+
+        err = db_export__evsel(dbe, evsel);
+        if (err)
+                return err;
+
+        err = db_export__machine(dbe, al->machine);
+        if (err)
+                return err;
+
+        main_thread = get_main_thread(al->machine, thread);
+        if (main_thread)
+                comm = machine__thread_exec_comm(al->machine, main_thread);
+
+        err = db_export__thread(dbe, thread, al->machine, comm);
+        if (err)
+                return err;
+
+        if (comm) {
+                err = db_export__comm(dbe, comm, main_thread);
+                if (err)
+                        return err;
+                es.comm_db_id = comm->db_id;
+        }
+
+        es.db_id = ++dbe->sample_last_db_id;
+
+        err = db_ids_from_al(dbe, al, &es.dso_db_id, &es.sym_db_id, &es.offset);
+        if (err)
+                return err;
+
+        if ((evsel->attr.sample_type & PERF_SAMPLE_ADDR) &&
+            sample_addr_correlates_sym(&evsel->attr)) {
+                struct addr_location addr_al;
+
+                perf_event__preprocess_sample_addr(event, sample, thread, &addr_al);
+                err = db_ids_from_al(dbe, &addr_al, &es.addr_dso_db_id,
+                                     &es.addr_sym_db_id, &es.addr_offset);
+                if (err)
+                        return err;
+                if (dbe->crp) {
+                        err = thread_stack__process(thread, comm, sample, al,
+                                                    &addr_al, es.db_id,
+                                                    dbe->crp);
+                        if (err)
+                                return err;
+                }
+        }
+
+        if (dbe->export_sample)
+                return dbe->export_sample(dbe, &es);
+
+        return 0;
+}
+
+static struct {
+        u32 branch_type;
+        const char *name;
+} branch_types[] = {
+        {0, "no branch"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL, "call"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN, "return"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CONDITIONAL, "conditional jump"},
+        {PERF_IP_FLAG_BRANCH, "unconditional jump"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_INTERRUPT,
+         "software interrupt"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_INTERRUPT,
+         "return from interrupt"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_SYSCALLRET,
+         "system call"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_RETURN | PERF_IP_FLAG_SYSCALLRET,
+         "return from system call"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_ASYNC, "asynchronous branch"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_CALL | PERF_IP_FLAG_ASYNC |
+         PERF_IP_FLAG_INTERRUPT, "hardware interrupt"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TX_ABORT, "transaction abort"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_BEGIN, "trace begin"},
+        {PERF_IP_FLAG_BRANCH | PERF_IP_FLAG_TRACE_END, "trace end"},
+        {0, NULL}
+};
+
+int db_export__branch_types(struct db_export *dbe)
+{
+        int i, err = 0;
+
+        for (i = 0; branch_types[i].name ; i++) {
+                err = db_export__branch_type(dbe, branch_types[i].branch_type,
+                                             branch_types[i].name);
+                if (err)
+                        break;
+        }
+        return err;
+}
+
+int db_export__call_path(struct db_export *dbe, struct call_path *cp)
+{
+        int err;
+
+        if (cp->db_id)
+                return 0;
+
+        if (cp->parent) {
+                err = db_export__call_path(dbe, cp->parent);
+                if (err)
+                        return err;
+        }
+
+        cp->db_id = ++dbe->call_path_last_db_id;
+
+        if (dbe->export_call_path)
+                return dbe->export_call_path(dbe, cp);
+
+        return 0;
+}
+
+int db_export__call_return(struct db_export *dbe, struct call_return *cr)
+{
+        int err;
+
+        if (cr->db_id)
+                return 0;
+
+        err = db_export__call_path(dbe, cr->cp);
+        if (err)
+                return err;
+
+        cr->db_id = ++dbe->call_return_last_db_id;
+
+        if (dbe->export_call_return)
+                return dbe->export_call_return(dbe, cr);
+
+        return 0;
+}