gdb/record.h

   1 /* Process record and replay target for GDB, the GNU debugger.
   2
   3    Copyright (C) 2008-2015 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 _RECORD_H_
  21 #define _RECORD_H_
  22
  23 #include "target/waitstatus.h" /* For enum target_stop_reason.  */
  24
  25 struct cmd_list_element;
  26
  27 extern unsigned int record_debug;
  28
  29 /* Allow record targets to add their own sub-commands.  */
  30 extern struct cmd_list_element *record_cmdlist;
  31 extern struct cmd_list_element *set_record_cmdlist;
  32 extern struct cmd_list_element *show_record_cmdlist;
  33 extern struct cmd_list_element *info_record_cmdlist;
  34
  35 /* Unwinders for some record targets.  */
  36 extern const struct frame_unwind record_btrace_frame_unwind;
  37 extern const struct frame_unwind record_btrace_tailcall_frame_unwind;
  38
  39 /* A list of flags specifying what record target methods should print.  */
  40 enum record_print_flag
  41 {
  42   /* Print the source file and line (if applicable).  */
  43   RECORD_PRINT_SRC_LINE = (1 << 0),
  44
  45   /* Print the instruction number range (if applicable).  */
  46   RECORD_PRINT_INSN_RANGE = (1 << 1),
  47
  48   /* Indent based on call stack depth (if applicable).  */
  49   RECORD_PRINT_INDENT_CALLS = (1 << 2)
  50 };
  51
  52 /* Determined whether the target is stopped at a software or hardware
  53    breakpoint, based on PC and the breakpoint tables.  The breakpoint
  54    type is translated to the appropriate target_stop_reason and
  55    written to REASON.  Returns true if stopped at a breakpoint, false
  56    otherwise.  */
  57
  58 extern int
  59   record_check_stopped_by_breakpoint (struct address_space *aspace,
  60                                       CORE_ADDR pc,
  61                                       enum target_stop_reason *reason);
  62
  63 /* Wrapper for target_read_memory that prints a debug message if
  64    reading memory fails.  */
  65 extern int record_read_memory (struct gdbarch *gdbarch,
  66                                CORE_ADDR memaddr, gdb_byte *myaddr,
  67                                ssize_t len);
  68
  69 /* A wrapper for target_goto_record that parses ARG as a number.  */
  70 extern void record_goto (const char *arg);
  71
  72 /* The default "to_disconnect" target method for record targets.  */
  73 extern void record_disconnect (struct target_ops *, const char *, int);
  74
  75 /* The default "to_detach" target method for record targets.  */
  76 extern void record_detach (struct target_ops *, const char *, int);
  77
  78 /* The default "to_mourn_inferior" target method for record targets.  */
  79 extern void record_mourn_inferior (struct target_ops *);
  80
  81 /* The default "to_kill" target method for record targets.  */
  82 extern void record_kill (struct target_ops *);
  83
  84 /* Find the record_stratum target in the current target stack.
  85    Returns NULL if none is found.  */
  86 extern struct target_ops *find_record_target (void);
  87
  88 /* This is to be called by record_stratum targets' open routine before
  89    it does anything.  */
  90 extern void record_preopen (void);
  91
  92 #endif /* _RECORD_H_ */