179 lines
7.7 KiB
C
179 lines
7.7 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "serial.h"
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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 memrw_cmd
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{
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char *cmdb; /* Command to send for byte read/write */
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char *cmdw; /* Command for word (16 bit) read/write */
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char *cmdl; /* Command for long (32 bit) read/write */
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char *cmdll; /* Command for long long (64 bit) read/write */
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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 regrw_cmd
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{
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char *cmd; /* Command to send for reg read/write */
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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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{
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int flags; /* See below */
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char **init; /* List of init commands. NULL terminated. */
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char *cont; /* continue command */
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char *step; /* single step */
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char *stop; /* Interrupt program string */
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char *set_break; /* set a breakpoint */
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char *clr_break; /* clear a breakpoint */
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char *clr_all_break; /* Clear all breakpoints */
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char *fill; /* Memory fill cmd (addr len val) */
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struct memrw_cmd setmem; /* set memory to a value */
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struct memrw_cmd getmem; /* display memory */
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struct regrw_cmd setreg; /* set a register */
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struct regrw_cmd getreg; /* get a register */
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/* Some commands can dump a bunch of registers
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at once. This comes as a set of REG=VAL
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pairs. This should be called for each pair
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of registers that we can parse to supply
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GDB with the value of a register. */
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char *dump_registers; /* Command to dump all regs at once */
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char *register_pattern; /* Pattern that picks out register from reg dump */
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void (*supply_register) PARAMS ((char *name, int namelen, char *val, int vallen));
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void (*load_routine) PARAMS ((serial_t desc, char *file, int hashmark)); /* Download routine */
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char *load; /* load command */
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char *loadresp; /* Response to load command */
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char *prompt; /* monitor command prompt */
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char *line_term; /* 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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int stopbits; /* number of stop bits */
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char **regnames; /* array of register names in ascii */
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int magic; /* Check value */
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};
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#define MONITOR_OPS_MAGIC 600925
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/* Flag defintions */
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#define MO_CLR_BREAK_USES_ADDR 0x1 /* If set, then clear breakpoint command
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uses address, otherwise it uses an index
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returned by the monitor. */
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#define MO_FILL_USES_ADDR 0x2 /* If set, then memory fill command uses
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STARTADDR, ENDADDR+1, VALUE as args, else it
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uses STARTADDR, LENGTH, VALUE as args. */
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#define MO_NEED_REGDUMP_AFTER_CONT 0x4 /* If set, then monitor doesn't auto-
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matically supply register dump when
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coming back after a continue. */
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#define MO_GETMEM_NEEDS_RANGE 0x8 /* getmem needs start addr and end addr */
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#define MO_GETMEM_READ_SINGLE 0x10 /* getmem can only read one loc at a time */
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extern struct monitor_ops *current_monitor;
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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 CONT_CMD (current_monitor->cont)
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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 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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/*
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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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extern char *monitor_supply_register PARAMS ((int regno, char *valstr));
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extern int monitor_expect PARAMS ((char *prompt, char *buf, int buflen));
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extern int monitor_expect_prompt PARAMS ((char *buf, int buflen));
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extern void monitor_printf PARAMS ((char *, ...))
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ATTR_FORMAT(printf, 1, 2);
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extern void monitor_printf_noecho PARAMS ((char *, ...))
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ATTR_FORMAT(printf, 1, 2);
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extern void init_monitor_ops PARAMS ((struct target_ops *));
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