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/* Process record and replay target for GDB, the GNU debugger.
Copyright (C) 2008-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that 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.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef RECORD_H
#define RECORD_H
#include "target/waitstatus.h" /* For enum target_stop_reason. */
#include "gdbsupport/enum-flags.h"
struct address_space;
struct cmd_list_element;
struct inferior;
extern unsigned int record_debug;
/* Allow record targets to add their own sub-commands. */
extern struct cmd_list_element *record_cmdlist;
extern struct cmd_list_element *set_record_cmdlist;
extern struct cmd_list_element *show_record_cmdlist;
extern struct cmd_list_element *info_record_cmdlist;
/* Unwinders for some record targets. */
extern const struct frame_unwind record_btrace_frame_unwind;
extern const struct frame_unwind record_btrace_tailcall_frame_unwind;
/* A list of different recording methods. */
enum record_method
{
/* No or unknown record method. */
RECORD_METHOD_NONE,
/* Record method "full". */
RECORD_METHOD_FULL,
/* Record method "btrace". */
RECORD_METHOD_BTRACE
};
/* A list of flags specifying what record target methods should print. */
enum record_print_flag
{
/* Print the source file and line (if applicable). */
RECORD_PRINT_SRC_LINE = (1 << 0),
/* Print the instruction number range (if applicable). */
RECORD_PRINT_INSN_RANGE = (1 << 1),
/* Indent based on call stack depth (if applicable). */
RECORD_PRINT_INDENT_CALLS = (1 << 2)
};
DEF_ENUM_FLAGS_TYPE (enum record_print_flag, record_print_flags);
/* Determined whether the target is stopped at a software or hardware
breakpoint, based on PC and the breakpoint tables. The breakpoint
type is translated to the appropriate target_stop_reason and
written to REASON. Returns true if stopped at a breakpoint, false
otherwise. */
extern int
record_check_stopped_by_breakpoint (const address_space *aspace,
CORE_ADDR pc,
enum target_stop_reason *reason);
/* Wrapper for target_read_memory that prints a debug message if
reading memory fails. */
extern int record_read_memory (struct gdbarch *gdbarch,
CORE_ADDR memaddr, gdb_byte *myaddr,
ssize_t len);
/* A wrapper for target_goto_record that parses ARG as a number. */
extern void record_goto (const char *arg);
/* The default "to_disconnect" target method for record targets. */
extern void record_disconnect (struct target_ops *, const char *, int);
/* The default "to_detach" target method for record targets. */
extern void record_detach (struct target_ops *, inferior *, int);
/* The default "to_mourn_inferior" target method for record targets. */
extern void record_mourn_inferior (struct target_ops *);
/* The default "to_kill" target method for record targets. */
extern void record_kill (struct target_ops *);
/* Find the record_stratum target in the current target stack.
Returns NULL if none is found. */
extern struct target_ops *find_record_target (void);
/* This is to be called by record_stratum targets' open routine before
it does anything. */
extern void record_preopen (void);
/* Start recording with the given METHOD and FORMAT. NULL means default method
or format. Throw on failure or invalid method / format. */
extern void record_start (const char *method, const char *format,
int from_tty);
/* Stop recording. Throw on failure. */
extern void record_stop (int from_tty);
#endif /* RECORD_H */
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