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, Boston, MA 02111-1307, USA.
24 /* This structure describes the strings necessary to give small command
25 sequences to the monitor, and parse the response.
27 CMD is the actual command typed at the monitor. Usually this has
28 embedded sequences ala printf, which are substituted with the
29 arguments appropriate to that type of command. Ie: to examine a
30 register, we substitute the register name for the first arg. To
31 modify memory, we substitute the memory location and the new
32 contents for the first and second args, etc...
34 RESP_DELIM used to home in on the response string, and is used to
35 disambiguate the answer within the pile of text returned by the
36 monitor. This should be a unique string that immediately precedes
37 the answer. Ie: if your monitor prints out `PC: 00000001= ' in
38 response to asking for the PC, you should use `: ' as the
39 RESP_DELIM. RESP_DELIM may be NULL if the res- ponse is going to
40 be ignored, or has no particular leading text.
42 TERM is the string that the monitor outputs to indicate that it is
43 idle, and waiting for input. This is usually a prompt of some
44 sort. In the previous example, it would be `= '. It is important
45 that TERM really means that the monitor is idle, otherwise GDB may
46 try to type at it when it isn't ready for input. This is a problem
47 because many monitors cannot deal with type-ahead. TERM may be
48 NULL if the normal prompt is output.
50 TERM_CMD is used to quit out of the subcommand mode and get back to
51 the main prompt. TERM_CMD may be NULL if it isn't necessary. It
52 will also be ignored if TERM is NULL. */
56 char *cmdb; /* Command to send for byte read/write */
57 char *cmdw; /* Command for word (16 bit) read/write */
58 char *cmdl; /* Command for long (32 bit) read/write */
59 char *cmdll; /* Command for long long (64 bit) read/write */
60 char *resp_delim; /* String just prior to the desired value */
61 char *term; /* Terminating string to search for */
62 char *term_cmd; /* String to get out of sub-mode (if necessary) */
67 char *cmd; /* Command to send for reg read/write */
68 char *resp_delim; /* String (actually a regexp if getmem) just
69 prior to the desired value */
70 char *term; /* Terminating string to search for */
71 char *term_cmd; /* String to get out of sub-mode (if necessary) */
76 int flags; /* See below */
77 char **init; /* List of init commands. NULL terminated. */
78 char *cont; /* continue command */
79 char *step; /* single step */
80 char *stop; /* Interrupt program string */
81 char *set_break; /* set a breakpoint */
82 char *clr_break; /* clear a breakpoint */
83 char *clr_all_break; /* Clear all breakpoints */
84 char *fill; /* Memory fill cmd (addr len val) */
85 struct memrw_cmd setmem; /* set memory to a value */
86 struct memrw_cmd getmem; /* display memory */
87 struct regrw_cmd setreg; /* set a register */
88 struct regrw_cmd getreg; /* get a register */
89 /* Some commands can dump a bunch of registers
90 at once. This comes as a set of REG=VAL
91 pairs. This should be called for each pair
92 of registers that we can parse to supply
93 GDB with the value of a register. */
94 char *dump_registers; /* Command to dump all regs at once */
95 char *register_pattern; /* Pattern that picks out register from reg dump */
96 void (*supply_register) PARAMS ((char *name, int namelen,
97 char *val, int vallen));
98 void (*load_routine) PARAMS ((serial_t desc, char *file,
99 int hashmark)); /* Download routine */
100 int (*dumpregs) PARAMS((void)) ; /* routine to dump all registers */
101 int (*continue_hook) PARAMS((void)) ; /* Emit the continue command */
102 int (*wait_filter) PARAMS((char * buf, /* Maybe contains registers */
104 int * response_length,
105 struct target_waitstatus * status)) ;
106 char *load; /* load command */
107 char *loadresp; /* Response to load command */
108 char *prompt; /* monitor command prompt */
109 char *line_term; /* end-of-command delimitor */
110 char *cmd_end; /* optional command terminator */
111 struct target_ops *target; /* target operations */
112 int stopbits; /* number of stop bits */
113 char **regnames; /* array of register names in ascii */
114 int magic; /* Check value */
117 /* The monitor ops magic number, used to detect if an ops structure doesn't
118 have the right number of entries filled in. */
120 #define MONITOR_OPS_MAGIC 600925
122 /* Flag definitions. */
124 /* If set, then clear breakpoint command uses address, otherwise it
125 uses an index returned by the monitor. */
127 #define MO_CLR_BREAK_USES_ADDR 0x1
129 /* If set, then memory fill command uses STARTADDR, ENDADDR+1, VALUE
130 as args, else it uses STARTADDR, LENGTH, VALUE as args. */
132 #define MO_FILL_USES_ADDR 0x2
134 /* If set, then monitor doesn't automatically supply register dump
135 when coming back after a continue. */
137 #define MO_NEED_REGDUMP_AFTER_CONT 0x4
139 /* getmem needs start addr and end addr */
141 #define MO_GETMEM_NEEDS_RANGE 0x8
143 /* getmem can only read one loc at a time */
145 #define MO_GETMEM_READ_SINGLE 0x10
147 /* handle \r\n combinations */
149 #define MO_HANDLE_NL 0x20
151 /* don't expect echos in monitor_open */
153 #define MO_NO_ECHO_ON_OPEN 0x40
155 /* If set, send break to stop monitor */
157 #define MO_SEND_BREAK_ON_STOP 0x80
159 /* If set, target sends an ACK after each S-record */
161 #define MO_SREC_ACK 0x100
163 /* Allow 0x prefix on addresses retured from monitor */
165 #define MO_HEX_PREFIX 0x200
167 /* Some monitors require a different command when starting a program */
169 #define MO_RUN_FIRST_TIME 0x400
171 /* Don't expect echos when getting memory */
173 #define MO_NO_ECHO_ON_SETMEM 0x800
175 /* If set, then register store command expects value BEFORE regname */
177 #define MO_REGISTER_VALUE_FIRST 0x1000
179 /* If set, then the monitor displays registers as pairs. */
181 #define MO_32_REGS_PAIRED 0x2000
183 /* If set, then register setting happens interactively. */
185 #define MO_SETREG_INTERACTIVE 0x4000
187 /* If set, then memory setting happens interactively. */
189 #define MO_SETMEM_INTERACTIVE 0x8000
191 /* If set, then memory dumps are always on 16-byte boundaries, even
192 when less is desired. */
194 #define MO_GETMEM_16_BOUNDARY 0x10000
196 /* If set, then the monitor numbers its breakpoints starting from 1. */
198 #define MO_CLR_BREAK_1_BASED 0x20000
200 /* If set, then the monitor acks srecords with a plus sign. */
202 #define MO_SREC_ACK_PLUS 0x40000
204 /* If set, then the monitor "acks" srecords with rotating lines. */
206 #define MO_SREC_ACK_ROTATE 0x80000
208 /* If set, then remove useless address bits from memory addresses. */
210 #define MO_ADDR_BITS_REMOVE 0x100000
212 /* If set, then display target program output if prefixed by ^O. */
214 #define MO_PRINT_PROGRAM_OUTPUT 0x200000
216 /* Some dump bytes commands align the first data with the preceeding
217 16 byte boundary. Some print blanks and start at the exactly the
218 requested boundary. */
220 #define MO_EXACT_DUMPADDR 0x400000
222 /* Rather entering and exiting the write memory dialog for each word byte,
223 we can save time by transferring the whole block without exiting
224 the memory editing mode. You only need to worry about this
225 if you are doing memory downloading.
226 This engages a new write function registered with dcache.
228 #define MO_HAS_BLOCKWRITES 0x800000
230 #define SREC_SIZE 160
232 extern void monitor_open PARAMS ((char *args, struct monitor_ops *ops,
234 extern void monitor_close PARAMS ((int quitting));
235 extern char *monitor_supply_register PARAMS ((int regno, char *valstr));
236 extern int monitor_expect PARAMS ((char *prompt, char *buf, int buflen));
237 extern int monitor_expect_prompt PARAMS ((char *buf, int buflen));
238 extern void monitor_printf PARAMS ((char *, ...))
239 ATTR_FORMAT(printf, 1, 2);
240 extern void monitor_printf_noecho PARAMS ((char *, ...))
241 ATTR_FORMAT(printf, 1, 2);
242 extern void monitor_write PARAMS ((char *buf, int buflen));
243 extern int monitor_readchar PARAMS ((void));
244 extern char *monitor_get_dev_name PARAMS ((void));
245 extern void init_monitor_ops PARAMS ((struct target_ops *));
246 extern int monitor_dump_reg_block PARAMS((char * dump_cmd)) ;