1 /* Definitions for remote debugging interface for ROM monitors.
2 Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000
3 Free Software Foundation, Inc.
4 Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
6 This file is part of GDB.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA.
29 /* This structure describes the strings necessary to give small command
30 sequences to the monitor, and parse the response.
32 CMD is the actual command typed at the monitor. Usually this has
33 embedded sequences ala printf, which are substituted with the
34 arguments appropriate to that type of command. Ie: to examine a
35 register, we substitute the register name for the first arg. To
36 modify memory, we substitute the memory location and the new
37 contents for the first and second args, etc...
39 RESP_DELIM used to home in on the response string, and is used to
40 disambiguate the answer within the pile of text returned by the
41 monitor. This should be a unique string that immediately precedes
42 the answer. Ie: if your monitor prints out `PC: 00000001= ' in
43 response to asking for the PC, you should use `: ' as the
44 RESP_DELIM. RESP_DELIM may be NULL if the res- ponse is going to
45 be ignored, or has no particular leading text.
47 TERM is the string that the monitor outputs to indicate that it is
48 idle, and waiting for input. This is usually a prompt of some
49 sort. In the previous example, it would be `= '. It is important
50 that TERM really means that the monitor is idle, otherwise GDB may
51 try to type at it when it isn't ready for input. This is a problem
52 because many monitors cannot deal with type-ahead. TERM may be
53 NULL if the normal prompt is output.
55 TERM_CMD is used to quit out of the subcommand mode and get back to
56 the main prompt. TERM_CMD may be NULL if it isn't necessary. It
57 will also be ignored if TERM is NULL. */
61 char *cmdb
; /* Command to send for byte read/write */
62 char *cmdw
; /* Command for word (16 bit) read/write */
63 char *cmdl
; /* Command for long (32 bit) read/write */
64 char *cmdll
; /* Command for long long (64 bit) read/write */
65 char *resp_delim
; /* String just prior to the desired value */
66 char *term
; /* Terminating string to search for */
67 char *term_cmd
; /* String to get out of sub-mode (if necessary) */
72 char *cmd
; /* Command to send for reg read/write */
73 char *resp_delim
; /* String (actually a regexp if getmem) just
74 prior to the desired value */
75 char *term
; /* Terminating string to search for */
76 char *term_cmd
; /* String to get out of sub-mode (if necessary) */
81 int flags
; /* See below */
82 char **init
; /* List of init commands. NULL terminated. */
83 char *cont
; /* continue command */
84 char *step
; /* single step */
85 char *stop
; /* Interrupt program string */
86 char *set_break
; /* set a breakpoint. If NULL, monitor implementation
87 sets its own to_insert_breakpoint method. */
88 char *clr_break
; /* clear a breakpoint */
89 char *clr_all_break
; /* Clear all breakpoints */
90 char *fill
; /* Memory fill cmd (addr len val) */
91 struct memrw_cmd setmem
; /* set memory to a value */
92 struct memrw_cmd getmem
; /* display memory */
93 struct regrw_cmd setreg
; /* set a register */
94 struct regrw_cmd getreg
; /* get a register */
95 /* Some commands can dump a bunch of registers
96 at once. This comes as a set of REG=VAL
97 pairs. This should be called for each pair
98 of registers that we can parse to supply
99 GDB with the value of a register. */
100 char *dump_registers
; /* Command to dump all regs at once */
101 char *register_pattern
; /* Pattern that picks out register from reg dump */
102 void (*supply_register
) (char *name
, int namelen
, char *val
, int vallen
);
103 void (*load_routine
) (struct serial
*desc
, char *file
,
104 int hashmark
); /* Download routine */
105 int (*dumpregs
) (void); /* routine to dump all registers */
106 int (*continue_hook
) (void); /* Emit the continue command */
107 int (*wait_filter
) (char *buf
, /* Maybe contains registers */
109 int *response_length
,
110 struct target_waitstatus
* status
);
111 char *load
; /* load command */
112 char *loadresp
; /* Response to load command */
113 char *prompt
; /* monitor command prompt */
114 char *line_term
; /* end-of-command delimitor */
115 char *cmd_end
; /* optional command terminator */
116 struct target_ops
*target
; /* target operations */
117 int stopbits
; /* number of stop bits */
118 char **regnames
; /* array of register names in ascii */
119 int num_breakpoints
; /* If set_break != NULL, number of supported
121 int magic
; /* Check value */
124 /* The monitor ops magic number, used to detect if an ops structure doesn't
125 have the right number of entries filled in. */
127 #define MONITOR_OPS_MAGIC 600925
129 /* Flag definitions. */
131 /* If set, then clear breakpoint command uses address, otherwise it
132 uses an index returned by the monitor. */
134 #define MO_CLR_BREAK_USES_ADDR 0x1
136 /* If set, then memory fill command uses STARTADDR, ENDADDR+1, VALUE
137 as args, else it uses STARTADDR, LENGTH, VALUE as args. */
139 #define MO_FILL_USES_ADDR 0x2
141 /* If set, then monitor doesn't automatically supply register dump
142 when coming back after a continue. */
144 #define MO_NEED_REGDUMP_AFTER_CONT 0x4
146 /* getmem needs start addr and end addr */
148 #define MO_GETMEM_NEEDS_RANGE 0x8
150 /* getmem can only read one loc at a time */
152 #define MO_GETMEM_READ_SINGLE 0x10
154 /* handle \r\n combinations */
156 #define MO_HANDLE_NL 0x20
158 /* don't expect echos in monitor_open */
160 #define MO_NO_ECHO_ON_OPEN 0x40
162 /* If set, send break to stop monitor */
164 #define MO_SEND_BREAK_ON_STOP 0x80
166 /* If set, target sends an ACK after each S-record */
168 #define MO_SREC_ACK 0x100
170 /* Allow 0x prefix on addresses retured from monitor */
172 #define MO_HEX_PREFIX 0x200
174 /* Some monitors require a different command when starting a program */
176 #define MO_RUN_FIRST_TIME 0x400
178 /* Don't expect echos when getting memory */
180 #define MO_NO_ECHO_ON_SETMEM 0x800
182 /* If set, then register store command expects value BEFORE regname */
184 #define MO_REGISTER_VALUE_FIRST 0x1000
186 /* If set, then the monitor displays registers as pairs. */
188 #define MO_32_REGS_PAIRED 0x2000
190 /* If set, then register setting happens interactively. */
192 #define MO_SETREG_INTERACTIVE 0x4000
194 /* If set, then memory setting happens interactively. */
196 #define MO_SETMEM_INTERACTIVE 0x8000
198 /* If set, then memory dumps are always on 16-byte boundaries, even
199 when less is desired. */
201 #define MO_GETMEM_16_BOUNDARY 0x10000
203 /* If set, then the monitor numbers its breakpoints starting from 1. */
205 #define MO_CLR_BREAK_1_BASED 0x20000
207 /* If set, then the monitor acks srecords with a plus sign. */
209 #define MO_SREC_ACK_PLUS 0x40000
211 /* If set, then the monitor "acks" srecords with rotating lines. */
213 #define MO_SREC_ACK_ROTATE 0x80000
215 /* If set, then remove useless address bits from memory addresses. */
217 #define MO_ADDR_BITS_REMOVE 0x100000
219 /* If set, then display target program output if prefixed by ^O. */
221 #define MO_PRINT_PROGRAM_OUTPUT 0x200000
223 /* Some dump bytes commands align the first data with the preceeding
224 16 byte boundary. Some print blanks and start at the exactly the
225 requested boundary. */
227 #define MO_EXACT_DUMPADDR 0x400000
229 /* Rather entering and exiting the write memory dialog for each word byte,
230 we can save time by transferring the whole block without exiting
231 the memory editing mode. You only need to worry about this
232 if you are doing memory downloading.
233 This engages a new write function registered with dcache.
235 #define MO_HAS_BLOCKWRITES 0x800000
237 #define SREC_SIZE 160
239 extern void monitor_open (char *args
, struct monitor_ops
*ops
, int from_tty
);
240 extern void monitor_close (int quitting
);
241 extern char *monitor_supply_register (int regno
, char *valstr
);
242 extern int monitor_expect (char *prompt
, char *buf
, int buflen
);
243 extern int monitor_expect_prompt (char *buf
, int buflen
);
244 extern void monitor_printf (char *, ...) ATTR_FORMAT (printf
, 1, 2);
246 monitor_printf_noecho (char *, ...)
247 ATTR_FORMAT (printf
, 1, 2);
248 extern void monitor_write (char *buf
, int buflen
);
249 extern int monitor_readchar (void);
250 extern char *monitor_get_dev_name (void);
251 extern void init_monitor_ops (struct target_ops
*);
252 extern int monitor_dump_reg_block (char *dump_cmd
);
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