gdbsupport/agent.h

   1 /* Shared utility routines for GDB to interact with agent.
   2
   3    Copyright (C) 2009-2020 Free Software Foundation, Inc.
   4
   5    This file is part of GDB.
   6
   7    This program is free software; you can redistribute it and/or modify
   8    it under the terms of the GNU General Public License as published by
   9    the Free Software Foundation; either version 3 of the License, or
  10    (at your option) any later version.
  11
  12    This program is distributed in the hope that it will be useful,
  13    but WITHOUT ANY WARRANTY; without even the implied warranty of
  14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15    GNU General Public License for more details.
  16
  17    You should have received a copy of the GNU General Public License
  18    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
  19
  20 #ifndef COMMON_AGENT_H
  21 #define COMMON_AGENT_H
  22
  23 #include "gdbsupport/preprocessor.h"
  24
  25 int agent_run_command (int pid, const char *cmd, int len);
  26
  27 int agent_look_up_symbols (void *);
  28
  29 #define IPA_SYM_EXPORTED_NAME(SYM) gdb_agent_ ## SYM
  30
  31 /* Define an entry in an IPA symbol list array.  If IPA_SYM is used, the macro
  32    IPA_SYM_STRUCT_NAME must be defined to the structure name holding the IPA
  33    symbol addresses in that particular file, before including
  34    gdbsupport/agent.h.  */
  35 #define IPA_SYM(SYM)                                   \
  36   {                                                    \
  37     STRINGIFY (IPA_SYM_EXPORTED_NAME (SYM)),           \
  38     offsetof (IPA_SYM_STRUCT_NAME, addr_ ## SYM)       \
  39   }
  40
  41 /* The size in bytes of the buffer used to talk to the IPA helper
  42    thread.  */
  43 #define IPA_CMD_BUF_SIZE 1024
  44
  45 bool agent_loaded_p (void);
  46
  47 extern bool debug_agent;
  48
  49 extern bool use_agent;
  50
  51 /* Capability of agent.  Different agents may have different capabilities,
  52    such as installing fast tracepoint or evaluating breakpoint conditions.
  53    Capabilities are represented by bit-maps, and each capability occupies one
  54    bit.  */
  55
  56 enum agent_capa
  57 {
  58   /* Capability to install fast tracepoint.  */
  59   AGENT_CAPA_FAST_TRACE = 0x1,
  60   /* Capability to install static tracepoint.  */
  61   AGENT_CAPA_STATIC_TRACE = (0x1 << 1),
  62 };
  63
  64 bool agent_capability_check (enum agent_capa);
  65
  66 void agent_capability_invalidate (void);
  67
  68 #endif /* COMMON_AGENT_H */