include/lttng/event-rule/kprobe-internal.h

   1 /*
   2  * Copyright (C) 2019 - Jonathan Rajotte-Julien <jonathan.rajotte-julien@efficios.com>
   3  *
   4  * This library is free software; you can redistribute it and/or modify it
   5  * under the terms of the GNU Lesser General Public License, version 2.1 only,
   6  * as published by the Free Software Foundation.
   7  *
   8  * This library is distributed in the hope that it will be useful, but WITHOUT
   9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  10  * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
  11  * for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this library; if not, write to the Free Software Foundation,
  15  * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  16  */
  17
  18 #ifndef LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
  19 #define LTTNG_EVENT_RULE_KPROBE_INTERNAL_H
  20
  21 #include <lttng/event-rule/kprobe.h>
  22 #include <lttng/event-rule/event-rule-internal.h>
  23 #include <common/buffer-view.h>
  24 #include <common/macros.h>
  25
  26 struct lttng_event_rule_kprobe {
  27         struct lttng_event_rule parent;
  28         char *name;
  29         struct {
  30                 uint64_t address;
  31                 uint64_t offset;
  32                 char *symbol_name;
  33                 bool set;
  34         } probe;
  35 };
  36
  37 struct lttng_event_rule_kprobe_comm {
  38         uint32_t name_len;
  39         uint32_t probe_symbol_name_len;
  40         uint64_t probe_address;
  41         uint64_t probe_offset;
  42         /* name, source symbol_name */
  43         char payload[];
  44 } LTTNG_PACKED;
  45
  46 LTTNG_HIDDEN
  47 ssize_t lttng_event_rule_kprobe_create_from_buffer(
  48                 const struct lttng_buffer_view *view,
  49                 struct lttng_event_rule **rule);
  50
  51 LTTNG_HIDDEN
  52 uint64_t lttng_event_rule_kprobe_get_address(
  53                 const struct lttng_event_rule *rule);
  54
  55 LTTNG_HIDDEN
  56 uint64_t lttng_event_rule_kprobe_get_offset(
  57                 const struct lttng_event_rule *rule);
  58
  59 LTTNG_HIDDEN
  60 const char *lttng_event_rule_kprobe_get_symbol_name(
  61                 const struct lttng_event_rule *rule);
  62
  63 #endif /* LTTNG_EVENT_RULE_KPROBE_INTERNAL_H */