32fa4b5936
into monitor.c. * monitor.c (monitor_create_inferior): Allow run command to start program.
135 lines
5.8 KiB
C
135 lines
5.8 KiB
C
/* Remote debugging interface ROM monitors.
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* Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
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* Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
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*
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* Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
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* Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
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*
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* This file is part of GDB.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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struct rom_cmd_data {
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char *cmd; /* command to send */
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char *delim; /* the delimiter */
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char *result; /* the result */
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};
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/* This structure describes the strings necessary to give small command
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sequences to the monitor, and parse the response.
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CMD is the actual command typed at the monitor. Usually this has embedded
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sequences ala printf, which are substituted with the arguments appropriate
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to that type of command. Ie: to examine a register, we substitute the
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register name for the first arg. To modify memory, we substitute the memory
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location and the new contents for the first and second args, etc...
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RESP_DELIM used to home in on the response string, and is used to
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disambiguate the answer within the pile of text returned by the monitor.
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This should be a unique string that immediately precedes the answer. Ie: if
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your monitor prints out `PC: 00000001= ' in response to asking for the PC,
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you should use `: ' as the RESP_DELIM. RESP_DELIM may be NULL if the res-
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ponse is going to be ignored, or has no particular leading text.
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TERM is the string that the monitor outputs to indicate that it is idle, and
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waiting for input. This is usually a prompt of some sort. In the previous
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example, it would be `= '. It is important that TERM really means that the
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monitor is idle, otherwise GDB may try to type at it when it isn't ready for
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input. This is a problem because many monitors cannot deal with type-ahead.
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TERM may be NULL if the normal prompt is output.
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TERM_CMD is used to quit out of the subcommand mode and get back to the main
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prompt. TERM_CMD may be NULL if it isn't necessary. It will also be
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ignored if TERM is NULL.
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*/
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struct cmd_resp {
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char *cmd; /* Command to send */
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char *resp_delim; /* String just prior to the desired value */
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char *term; /* Terminating string to search for */
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char *term_cmd; /* String to get out of sub-mode (if necessary) */
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};
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struct monitor_ops {
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int type; /* 1 is ascii, 0 is GDB remote protocol */
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char *init; /* initialize to the monitor */
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char *execute; /* execute or usually GO command */
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char *resume; /* continue command */
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char *step; /* single step */
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char *set_break; /* set a breakpoint */
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char *clr_break; /* clear a breakpoint */
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int clr_type; /* number or address for clearing */
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struct cmd_resp setmem; /* set memory to a value */
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struct cmd_resp getmem; /* display memory */
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struct cmd_resp setreg; /* set a register */
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struct cmd_resp getreg; /* get a register */
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char *load; /* load command */
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char *prompt; /* monitor command prompt */
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char *cmd_delim; /* end-of-command delimitor */
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char *cmd_end; /* optional command terminator */
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struct target_ops *target; /* target operations */
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char **loadtypes; /* the load types that are supported */
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char **loadprotos; /* the load protocols that are supported */
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char *baudrates; /* supported baud rates */
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int stopbits; /* number of stop bits */
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char **regnames; /* array of register names in ascii */
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};
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extern struct monitor_ops *current_monitor;
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#define PROTO_TYPE (current_monitor->type)
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#define LOADTYPES (current_monitor->loadtypes)
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#define LOADPROTOS (current_monitor->loadprotos)
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#define INIT_CMD (current_monitor->init)
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#define GO_CMD (current_monitor->execute)
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#define CONT_CMD (current_monitor->resume)
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#define STEP_CMD (current_monitor->step)
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#define SET_BREAK_CMD (current_monitor->set_break)
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#define CLR_BREAK_CMD (current_monitor->clr_break)
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#define CLR_BREAK_ADDR (current_monitor->clr_type)
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#define SET_MEM (current_monitor->setmem)
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#define GET_MEM (current_monitor->getmem)
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#define LOAD_CMD (current_monitor->load)
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#define GET_REG (current_monitor->regget)
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#define SET_REG (current_monitor->regset)
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#define CMD_END (current_monitor->cmd_end)
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#define CMD_DELIM (current_monitor->cmd_delim)
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#define PROMPT (current_monitor->prompt)
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#define TARGET_OPS (current_monitor->target)
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#define TARGET_NAME (current_monitor->target->to_shortname)
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#define BAUDRATES (current_monitor->baudrates)
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#define STOPBITS (current_monitor->stopbits)
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#define REGNAMES(x) (current_monitor->regnames[x])
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#define ROMCMD(x) (x.cmd)
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#define ROMDELIM(x) (x.delim)
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#define ROMRES(x) (x.result)
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#define push_monitor(x) current_monitor = x;
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#define SREC_SIZE 160
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#define GDBPROTO ((current_monitor->type) ? 0: 1)
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/*
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* FIXME: These are to temporarily maintain compatability with the
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* old monitor structure till remote-mon.c is fixed to work
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* like the *-rom.c files.
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*/
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#define MEM_PROMPT (current_monitor->loadtypes)
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#define MEM_SET_CMD (current_monitor->setmem)
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#define MEM_DIS_CMD (current_monitor->getmem)
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#define REG_DELIM (current_monitor->regset.delim)
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extern void monitor_open PARAMS ((char *args, struct monitor_ops *ops, int from_tty));
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