1 /* Definitions for remote debugging interface for ROM monitors.
2 Copyright 1990, 1991, 1992, 1996 Free Software Foundation, Inc.
3 Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
5 This file is part of GDB.
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 2 of the License, or
10 (at your option) any later version.
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.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place - Suite 330,
20 Boston, MA 02111-1307, USA.
25 /* This structure describes the strings necessary to give small command
26 sequences to the monitor, and parse the response.
28 CMD is the actual command typed at the monitor. Usually this has
29 embedded sequences ala printf, which are substituted with the
30 arguments appropriate to that type of command. Ie: to examine a
31 register, we substitute the register name for the first arg. To
32 modify memory, we substitute the memory location and the new
33 contents for the first and second args, etc...
35 RESP_DELIM used to home in on the response string, and is used to
36 disambiguate the answer within the pile of text returned by the
37 monitor. This should be a unique string that immediately precedes
38 the answer. Ie: if your monitor prints out `PC: 00000001= ' in
39 response to asking for the PC, you should use `: ' as the
40 RESP_DELIM. RESP_DELIM may be NULL if the res- ponse is going to
41 be ignored, or has no particular leading text.
43 TERM is the string that the monitor outputs to indicate that it is
44 idle, and waiting for input. This is usually a prompt of some
45 sort. In the previous example, it would be `= '. It is important
46 that TERM really means that the monitor is idle, otherwise GDB may
47 try to type at it when it isn't ready for input. This is a problem
48 because many monitors cannot deal with type-ahead. TERM may be
49 NULL if the normal prompt is output.
51 TERM_CMD is used to quit out of the subcommand mode and get back to
52 the main prompt. TERM_CMD may be NULL if it isn't necessary. It
53 will also be ignored if TERM is NULL. */
57 char *cmdb
; /* Command to send for byte read/write */
58 char *cmdw
; /* Command for word (16 bit) read/write */
59 char *cmdl
; /* Command for long (32 bit) read/write */
60 char *cmdll
; /* Command for long long (64 bit) read/write */
61 char *resp_delim
; /* String just prior to the desired value */
62 char *term
; /* Terminating string to search for */
63 char *term_cmd
; /* String to get out of sub-mode (if necessary) */
68 char *cmd
; /* Command to send for reg read/write */
69 char *resp_delim
; /* String (actually a regexp if getmem) just
70 prior to the desired value */
71 char *term
; /* Terminating string to search for */
72 char *term_cmd
; /* String to get out of sub-mode (if necessary) */
77 int flags
; /* See below */
78 char **init
; /* List of init commands. NULL terminated. */
79 char *cont
; /* continue command */
80 char *step
; /* single step */
81 char *stop
; /* Interrupt program string */
82 char *set_break
; /* set a breakpoint. If NULL, monitor implementation
83 sets its own to_insert_breakpoint method. */
84 char *clr_break
; /* clear a breakpoint */
85 char *clr_all_break
; /* Clear all breakpoints */
86 char *fill
; /* Memory fill cmd (addr len val) */
87 struct memrw_cmd setmem
; /* set memory to a value */
88 struct memrw_cmd getmem
; /* display memory */
89 struct regrw_cmd setreg
; /* set a register */
90 struct regrw_cmd getreg
; /* get a register */
91 /* Some commands can dump a bunch of registers
92 at once. This comes as a set of REG=VAL
93 pairs. This should be called for each pair
94 of registers that we can parse to supply
95 GDB with the value of a register. */
96 char *dump_registers
; /* Command to dump all regs at once */
97 char *register_pattern
; /* Pattern that picks out register from reg dump */
98 void (*supply_register
) PARAMS ((char *name
, int namelen
,
99 char *val
, int vallen
));
100 void (*load_routine
) PARAMS ((serial_t desc
, char *file
,
101 int hashmark
)); /* Download routine */
102 int (*dumpregs
) PARAMS ((void)); /* routine to dump all registers */
103 int (*continue_hook
) PARAMS ((void)); /* Emit the continue command */
104 int (*wait_filter
) PARAMS ((char *buf
, /* Maybe contains registers */
106 int *response_length
,
107 struct target_waitstatus
* status
));
108 char *load
; /* load command */
109 char *loadresp
; /* Response to load command */
110 char *prompt
; /* monitor command prompt */
111 char *line_term
; /* end-of-command delimitor */
112 char *cmd_end
; /* optional command terminator */
113 struct target_ops
*target
; /* target operations */
114 int stopbits
; /* number of stop bits */
115 char **regnames
; /* array of register names in ascii */
116 int num_breakpoints
; /* If set_break != NULL, number of supported
118 int magic
; /* Check value */
121 /* The monitor ops magic number, used to detect if an ops structure doesn't
122 have the right number of entries filled in. */
124 #define MONITOR_OPS_MAGIC 600925
126 /* Flag definitions. */
128 /* If set, then clear breakpoint command uses address, otherwise it
129 uses an index returned by the monitor. */
131 #define MO_CLR_BREAK_USES_ADDR 0x1
133 /* If set, then memory fill command uses STARTADDR, ENDADDR+1, VALUE
134 as args, else it uses STARTADDR, LENGTH, VALUE as args. */
136 #define MO_FILL_USES_ADDR 0x2
138 /* If set, then monitor doesn't automatically supply register dump
139 when coming back after a continue. */
141 #define MO_NEED_REGDUMP_AFTER_CONT 0x4
143 /* getmem needs start addr and end addr */
145 #define MO_GETMEM_NEEDS_RANGE 0x8
147 /* getmem can only read one loc at a time */
149 #define MO_GETMEM_READ_SINGLE 0x10
151 /* handle \r\n combinations */
153 #define MO_HANDLE_NL 0x20
155 /* don't expect echos in monitor_open */
157 #define MO_NO_ECHO_ON_OPEN 0x40
159 /* If set, send break to stop monitor */
161 #define MO_SEND_BREAK_ON_STOP 0x80
163 /* If set, target sends an ACK after each S-record */
165 #define MO_SREC_ACK 0x100
167 /* Allow 0x prefix on addresses retured from monitor */
169 #define MO_HEX_PREFIX 0x200
171 /* Some monitors require a different command when starting a program */
173 #define MO_RUN_FIRST_TIME 0x400
175 /* Don't expect echos when getting memory */
177 #define MO_NO_ECHO_ON_SETMEM 0x800
179 /* If set, then register store command expects value BEFORE regname */
181 #define MO_REGISTER_VALUE_FIRST 0x1000
183 /* If set, then the monitor displays registers as pairs. */
185 #define MO_32_REGS_PAIRED 0x2000
187 /* If set, then register setting happens interactively. */
189 #define MO_SETREG_INTERACTIVE 0x4000
191 /* If set, then memory setting happens interactively. */
193 #define MO_SETMEM_INTERACTIVE 0x8000
195 /* If set, then memory dumps are always on 16-byte boundaries, even
196 when less is desired. */
198 #define MO_GETMEM_16_BOUNDARY 0x10000
200 /* If set, then the monitor numbers its breakpoints starting from 1. */
202 #define MO_CLR_BREAK_1_BASED 0x20000
204 /* If set, then the monitor acks srecords with a plus sign. */
206 #define MO_SREC_ACK_PLUS 0x40000
208 /* If set, then the monitor "acks" srecords with rotating lines. */
210 #define MO_SREC_ACK_ROTATE 0x80000
212 /* If set, then remove useless address bits from memory addresses. */
214 #define MO_ADDR_BITS_REMOVE 0x100000
216 /* If set, then display target program output if prefixed by ^O. */
218 #define MO_PRINT_PROGRAM_OUTPUT 0x200000
220 /* Some dump bytes commands align the first data with the preceeding
221 16 byte boundary. Some print blanks and start at the exactly the
222 requested boundary. */
224 #define MO_EXACT_DUMPADDR 0x400000
226 /* Rather entering and exiting the write memory dialog for each word byte,
227 we can save time by transferring the whole block without exiting
228 the memory editing mode. You only need to worry about this
229 if you are doing memory downloading.
230 This engages a new write function registered with dcache.
232 #define MO_HAS_BLOCKWRITES 0x800000
234 #define SREC_SIZE 160
236 extern void monitor_open
PARAMS ((char *args
, struct monitor_ops
* ops
,
238 extern void monitor_close
PARAMS ((int quitting
));
239 extern char *monitor_supply_register
PARAMS ((int regno
, char *valstr
));
240 extern int monitor_expect
PARAMS ((char *prompt
, char *buf
, int buflen
));
241 extern int monitor_expect_prompt
PARAMS ((char *buf
, int buflen
));
242 extern void monitor_printf
243 PARAMS ((char *,...))
244 ATTR_FORMAT (printf
, 1, 2);
245 extern void monitor_printf_noecho
PARAMS ((char *,...))
246 ATTR_FORMAT (printf
, 1, 2);
247 extern void monitor_write
PARAMS ((char *buf
, int buflen
));
248 extern int monitor_readchar
PARAMS ((void));
249 extern char *monitor_get_dev_name
PARAMS ((void));
250 extern void init_monitor_ops
PARAMS ((struct target_ops
*));
251 extern int monitor_dump_reg_block
PARAMS ((char *dump_cmd
));
252 extern void flush_monitor_dcache
PARAMS ((void));
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