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/* Memory breakpoint interfaces for the remote server for GDB.
Copyright (C) 2002, 2005, 2007-2012 Free Software Foundation, Inc.
Contributed by MontaVista Software.
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 MEM_BREAK_H
#define MEM_BREAK_H
/* Breakpoints are opaque. */
struct breakpoint;
struct fast_tracepoint_jump;
/* Create a new GDB breakpoint at WHERE. Returns -1 if breakpoints
are not supported on this target, 0 otherwise. */
int set_gdb_breakpoint_at (CORE_ADDR where);
/* Returns TRUE if there's any breakpoint at ADDR in our tables,
inserted, or not. */
int breakpoint_here (CORE_ADDR addr);
/* Returns TRUE if there's any inserted breakpoint set at ADDR. */
int breakpoint_inserted_here (CORE_ADDR addr);
/* Returns TRUE if there's a GDB breakpoint set at ADDR. */
int gdb_breakpoint_here (CORE_ADDR where);
/* Create a new breakpoint at WHERE, and call HANDLER when
it is hit. HANDLER should return 1 if the breakpoint
should be deleted, 0 otherwise. */
struct breakpoint *set_breakpoint_at (CORE_ADDR where,
int (*handler) (CORE_ADDR));
/* Delete a GDB breakpoint previously inserted at ADDR with
set_gdb_breakpoint_at. */
int delete_gdb_breakpoint_at (CORE_ADDR addr);
/* Delete a breakpoint. */
int delete_breakpoint (struct breakpoint *bkpt);
/* Set a reinsert breakpoint at STOP_AT. */
void set_reinsert_breakpoint (CORE_ADDR stop_at);
/* Delete all reinsert breakpoints. */
void delete_reinsert_breakpoints (void);
/* Reinsert breakpoints at WHERE (and change their status to
inserted). */
void reinsert_breakpoints_at (CORE_ADDR where);
/* Uninsert breakpoints at WHERE (and change their status to
uninserted). This still leaves the breakpoints in the table. */
void uninsert_breakpoints_at (CORE_ADDR where);
/* Reinsert all breakpoints of the current process (and change their
status to inserted). */
void reinsert_all_breakpoints (void);
/* Uninsert all breakpoints of the current process (and change their
status to uninserted). This still leaves the breakpoints in the
table. */
void uninsert_all_breakpoints (void);
/* See if any breakpoint claims ownership of STOP_PC. Call the handler for
the breakpoint, if found. */
void check_breakpoints (CORE_ADDR stop_pc);
/* See if any breakpoints shadow the target memory area from MEM_ADDR
to MEM_ADDR + MEM_LEN. Update the data already read from the target
(in BUF) if necessary. */
void check_mem_read (CORE_ADDR mem_addr, unsigned char *buf, int mem_len);
/* See if any breakpoints shadow the target memory area from MEM_ADDR
to MEM_ADDR + MEM_LEN. Update the data to be written to the target
(in BUF, a copy of MYADDR on entry) if necessary, as well as the
original data for any breakpoints. */
void check_mem_write (CORE_ADDR mem_addr,
unsigned char *buf, const unsigned char *myaddr, int mem_len);
/* Set the byte pattern to insert for memory breakpoints. This function
must be called before any breakpoints are set. */
void set_breakpoint_data (const unsigned char *bp_data, int bp_len);
/* Delete all breakpoints. */
void delete_all_breakpoints (void);
/* Clear the "inserted" flag in all breakpoints of PROC. */
void mark_breakpoints_out (struct process_info *proc);
/* Delete all breakpoints, but do not try to un-insert them from the
inferior. */
void free_all_breakpoints (struct process_info *proc);
/* Check if breakpoints still seem to be inserted in the inferior. */
void validate_breakpoints (void);
/* Insert a fast tracepoint jump at WHERE, using instruction INSN, of
LENGTH bytes. */
struct fast_tracepoint_jump *set_fast_tracepoint_jump (CORE_ADDR where,
unsigned char *insn,
ULONGEST length);
/* Increment reference counter of JP. */
void inc_ref_fast_tracepoint_jump (struct fast_tracepoint_jump *jp);
/* Delete fast tracepoint jump TODEL from our tables, and uninsert if
from memory. */
int delete_fast_tracepoint_jump (struct fast_tracepoint_jump *todel);
/* Returns true if there's fast tracepoint jump set at WHERE. */
int fast_tracepoint_jump_here (CORE_ADDR);
/* Uninsert fast tracepoint jumps at WHERE (and change their status to
uninserted). This still leaves the tracepoints in the table. */
void uninsert_fast_tracepoint_jumps_at (CORE_ADDR pc);
/* Reinsert fast tracepoint jumps at WHERE (and change their status to
inserted). */
void reinsert_fast_tracepoint_jumps_at (CORE_ADDR where);
#endif /* MEM_BREAK_H */
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