1 /* Memory breakpoint interfaces for the remote server for GDB.
2 Copyright (C) 2002, 2005, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
5 Contributed by MontaVista Software.
7 This file is part of GDB.
9 This program is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
14 This program is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with this program. If not, see <http://www.gnu.org/licenses/>. */
25 /* Breakpoints are opaque. */
27 struct fast_tracepoint_jump
;
29 /* Create a new GDB breakpoint at WHERE. Returns -1 if breakpoints
30 are not supported on this target, 0 otherwise. */
32 int set_gdb_breakpoint_at (CORE_ADDR where
);
34 /* Returns TRUE if there's any breakpoint at ADDR in our tables,
37 int breakpoint_here (CORE_ADDR addr
);
39 /* Returns TRUE if there's any inserted breakpoint set at ADDR. */
41 int breakpoint_inserted_here (CORE_ADDR addr
);
43 /* Returns TRUE if there's a GDB breakpoint set at ADDR. */
45 int gdb_breakpoint_here (CORE_ADDR where
);
47 /* Create a new breakpoint at WHERE, and call HANDLER when
48 it is hit. HANDLER should return 1 if the breakpoint
49 should be deleted, 0 otherwise. */
51 struct breakpoint
*set_breakpoint_at (CORE_ADDR where
,
52 int (*handler
) (CORE_ADDR
));
54 /* Delete a GDB breakpoint previously inserted at ADDR with
55 set_gdb_breakpoint_at. */
57 int delete_gdb_breakpoint_at (CORE_ADDR addr
);
59 /* Delete a breakpoint. */
61 int delete_breakpoint (struct breakpoint
*bkpt
);
63 /* Set a reinsert breakpoint at STOP_AT. */
65 void set_reinsert_breakpoint (CORE_ADDR stop_at
);
67 /* Delete all reinsert breakpoints. */
69 void delete_reinsert_breakpoints (void);
71 /* Reinsert breakpoints at WHERE (and change their status to
74 void reinsert_breakpoints_at (CORE_ADDR where
);
76 /* Uninsert breakpoints at WHERE (and change their status to
77 uninserted). This still leaves the breakpoints in the table. */
79 void uninsert_breakpoints_at (CORE_ADDR where
);
81 /* Reinsert all breakpoints of the current process (and change their
82 status to inserted). */
84 void reinsert_all_breakpoints (void);
86 /* Uninsert all breakpoints of the current process (and change their
87 status to uninserted). This still leaves the breakpoints in the
90 void uninsert_all_breakpoints (void);
92 /* See if any breakpoint claims ownership of STOP_PC. Call the handler for
93 the breakpoint, if found. */
95 void check_breakpoints (CORE_ADDR stop_pc
);
97 /* See if any breakpoints shadow the target memory area from MEM_ADDR
98 to MEM_ADDR + MEM_LEN. Update the data already read from the target
99 (in BUF) if necessary. */
101 void check_mem_read (CORE_ADDR mem_addr
, unsigned char *buf
, int mem_len
);
103 /* See if any breakpoints shadow the target memory area from MEM_ADDR
104 to MEM_ADDR + MEM_LEN. Update the data to be written to the target
105 (in BUF) if necessary, as well as the original data for any breakpoints. */
107 void check_mem_write (CORE_ADDR mem_addr
, unsigned char *buf
, int mem_len
);
109 /* Set the byte pattern to insert for memory breakpoints. This function
110 must be called before any breakpoints are set. */
112 void set_breakpoint_data (const unsigned char *bp_data
, int bp_len
);
114 /* Delete all breakpoints. */
116 void delete_all_breakpoints (void);
118 /* Clear the "inserted" flag in all breakpoints of PROC. */
120 void mark_breakpoints_out (struct process_info
*proc
);
122 /* Delete all breakpoints, but do not try to un-insert them from the
125 void free_all_breakpoints (struct process_info
*proc
);
127 /* Check if breakpoints still seem to be inserted in the inferior. */
129 void validate_breakpoints (void);
131 /* Insert a fast tracepoint jump at WHERE, using instruction INSN, of
134 struct fast_tracepoint_jump
*set_fast_tracepoint_jump (CORE_ADDR where
,
138 /* Delete fast tracepoint jump TODEL from our tables, and uninsert if
141 int delete_fast_tracepoint_jump (struct fast_tracepoint_jump
*todel
);
143 /* Returns true if there's fast tracepoint jump set at WHERE. */
145 int fast_tracepoint_jump_here (CORE_ADDR
);
147 /* Uninsert fast tracepoint jumps at WHERE (and change their status to
148 uninserted). This still leaves the tracepoints in the table. */
150 void uninsert_fast_tracepoint_jumps_at (CORE_ADDR pc
);
152 /* Reinsert fast tracepoint jumps at WHERE (and change their status to
155 void reinsert_fast_tracepoint_jumps_at (CORE_ADDR where
);
157 #endif /* MEM_BREAK_H */
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