mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-27 05:50:43 +00:00
2a8b1fab7c
* nec4102rom.c : New file implements rom monitor adapter for
nec-vr4102 board. This board hosts the vr4111 chip. This file
required extenstions to the monitor_ops structure, hooks for wiat
filter, new flags. This version does not support more than one
breakpoint and resuming after a breakpoint in 16 bit mode is
completely disfunctional. * monitor.h : Defined additional hooks
for dmpregs, confinuer_hooks and wait_filter. These additions
require that all rom monitor interfaces be recoded to to
initializa monitor ops using assignments rather than static
structure initialization. Added new bits to flags
MO_EXACT_DUMPADDR, MO_HAS_BLOCKWRITES
* monitor.c (RDEBUG): Conditional tracing throughout the file.
(fromhex): Now recognized upper cse hex digits
(monitor_printf_noecho):
(monitor_readchar): Tracing interferes with input timing.
(monitor_open): Register different memory write functions with
dcache_init if MO_HAS_BLOCKWRITES.
(flush_monior_dcache): Added as an additional utilty.
(monitor-resume): Call continue hook if one has been supplied.
(monitor_wait_filter): New function Factored out of monitor wait
and used if alternate wait-filter has not been provided.
(monitor_wait): call alternate wait filter if provided. Call
monitor_dump_regs, a new function factored out from inline code.
(monitor_dump_block): A new function used as a utility when
monitors must dump several blocks of registers using different
commands.
(monitor_dump_regs): Call alternate function if provided. Uses new
hook in monitor.h.
(monitor_write_memory): Engage previouly added hook
MO_FILL_USES_ADDR.
(monitor_write_even_block): new function supports writing long
blocks of 4byte words.
(longlongendswap): new internal function
(monitor_write_memory_longlongs): new function writes large blocks
using command to enter a long long.
(monitor_write-memory_block): new Function figures out which block
mod to use.
(monitor_read_memory): Can now handle dump formats in which the bytes
preceeding the requested data is not printed.
* monitor.h: Added new fields to the structure
247 lines
8.9 KiB
C++
247 lines
8.9 KiB
C++
/* Definitions for remote debugging interface for ROM monitors.
|
|
Copyright 1990, 1991, 1992, 1996 Free Software Foundation, Inc.
|
|
Contributed by Cygnus Support. Written by Rob Savoye for Cygnus.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
*/
|
|
|
|
#include "serial.h"
|
|
|
|
/* This structure describes the strings necessary to give small command
|
|
sequences to the monitor, and parse the response.
|
|
|
|
CMD is the actual command typed at the monitor. Usually this has
|
|
embedded sequences ala printf, which are substituted with the
|
|
arguments appropriate to that type of command. Ie: to examine a
|
|
register, we substitute the register name for the first arg. To
|
|
modify memory, we substitute the memory location and the new
|
|
contents for the first and second args, etc...
|
|
|
|
RESP_DELIM used to home in on the response string, and is used to
|
|
disambiguate the answer within the pile of text returned by the
|
|
monitor. This should be a unique string that immediately precedes
|
|
the answer. Ie: if your monitor prints out `PC: 00000001= ' in
|
|
response to asking for the PC, you should use `: ' as the
|
|
RESP_DELIM. RESP_DELIM may be NULL if the res- ponse is going to
|
|
be ignored, or has no particular leading text.
|
|
|
|
TERM is the string that the monitor outputs to indicate that it is
|
|
idle, and waiting for input. This is usually a prompt of some
|
|
sort. In the previous example, it would be `= '. It is important
|
|
that TERM really means that the monitor is idle, otherwise GDB may
|
|
try to type at it when it isn't ready for input. This is a problem
|
|
because many monitors cannot deal with type-ahead. TERM may be
|
|
NULL if the normal prompt is output.
|
|
|
|
TERM_CMD is used to quit out of the subcommand mode and get back to
|
|
the main prompt. TERM_CMD may be NULL if it isn't necessary. It
|
|
will also be ignored if TERM is NULL. */
|
|
|
|
struct memrw_cmd
|
|
{
|
|
char *cmdb; /* Command to send for byte read/write */
|
|
char *cmdw; /* Command for word (16 bit) read/write */
|
|
char *cmdl; /* Command for long (32 bit) read/write */
|
|
char *cmdll; /* Command for long long (64 bit) read/write */
|
|
char *resp_delim; /* String just prior to the desired value */
|
|
char *term; /* Terminating string to search for */
|
|
char *term_cmd; /* String to get out of sub-mode (if necessary) */
|
|
};
|
|
|
|
struct regrw_cmd
|
|
{
|
|
char *cmd; /* Command to send for reg read/write */
|
|
char *resp_delim; /* String (actually a regexp if getmem) just
|
|
prior to the desired value */
|
|
char *term; /* Terminating string to search for */
|
|
char *term_cmd; /* String to get out of sub-mode (if necessary) */
|
|
};
|
|
|
|
struct monitor_ops
|
|
{
|
|
int flags; /* See below */
|
|
char **init; /* List of init commands. NULL terminated. */
|
|
char *cont; /* continue command */
|
|
char *step; /* single step */
|
|
char *stop; /* Interrupt program string */
|
|
char *set_break; /* set a breakpoint */
|
|
char *clr_break; /* clear a breakpoint */
|
|
char *clr_all_break; /* Clear all breakpoints */
|
|
char *fill; /* Memory fill cmd (addr len val) */
|
|
struct memrw_cmd setmem; /* set memory to a value */
|
|
struct memrw_cmd getmem; /* display memory */
|
|
struct regrw_cmd setreg; /* set a register */
|
|
struct regrw_cmd getreg; /* get a register */
|
|
/* Some commands can dump a bunch of registers
|
|
at once. This comes as a set of REG=VAL
|
|
pairs. This should be called for each pair
|
|
of registers that we can parse to supply
|
|
GDB with the value of a register. */
|
|
char *dump_registers; /* Command to dump all regs at once */
|
|
char *register_pattern; /* Pattern that picks out register from reg dump */
|
|
void (*supply_register) PARAMS ((char *name, int namelen,
|
|
char *val, int vallen));
|
|
void (*load_routine) PARAMS ((serial_t desc, char *file,
|
|
int hashmark)); /* Download routine */
|
|
int (*dumpregs) PARAMS((void)) ; /* routine to dump all registers */
|
|
int (*continue_hook) PARAMS((void)) ; /* Emit the continue command */
|
|
int (*wait_filter) PARAMS((char * buf, /* Maybe contains registers */
|
|
int bufmax ,
|
|
int * response_length,
|
|
struct target_waitstatus * status)) ;
|
|
char *load; /* load command */
|
|
char *loadresp; /* Response to load command */
|
|
char *prompt; /* monitor command prompt */
|
|
char *line_term; /* end-of-command delimitor */
|
|
char *cmd_end; /* optional command terminator */
|
|
struct target_ops *target; /* target operations */
|
|
int stopbits; /* number of stop bits */
|
|
char **regnames; /* array of register names in ascii */
|
|
int magic; /* Check value */
|
|
};
|
|
|
|
/* The monitor ops magic number, used to detect if an ops structure doesn't
|
|
have the right number of entries filled in. */
|
|
|
|
#define MONITOR_OPS_MAGIC 600925
|
|
|
|
/* Flag definitions. */
|
|
|
|
/* If set, then clear breakpoint command uses address, otherwise it
|
|
uses an index returned by the monitor. */
|
|
|
|
#define MO_CLR_BREAK_USES_ADDR 0x1
|
|
|
|
/* If set, then memory fill command uses STARTADDR, ENDADDR+1, VALUE
|
|
as args, else it uses STARTADDR, LENGTH, VALUE as args. */
|
|
|
|
#define MO_FILL_USES_ADDR 0x2
|
|
|
|
/* If set, then monitor doesn't automatically supply register dump
|
|
when coming back after a continue. */
|
|
|
|
#define MO_NEED_REGDUMP_AFTER_CONT 0x4
|
|
|
|
/* getmem needs start addr and end addr */
|
|
|
|
#define MO_GETMEM_NEEDS_RANGE 0x8
|
|
|
|
/* getmem can only read one loc at a time */
|
|
|
|
#define MO_GETMEM_READ_SINGLE 0x10
|
|
|
|
/* handle \r\n combinations */
|
|
|
|
#define MO_HANDLE_NL 0x20
|
|
|
|
/* don't expect echos in monitor_open */
|
|
|
|
#define MO_NO_ECHO_ON_OPEN 0x40
|
|
|
|
/* If set, send break to stop monitor */
|
|
|
|
#define MO_SEND_BREAK_ON_STOP 0x80
|
|
|
|
/* If set, target sends an ACK after each S-record */
|
|
|
|
#define MO_SREC_ACK 0x100
|
|
|
|
/* Allow 0x prefix on addresses retured from monitor */
|
|
|
|
#define MO_HEX_PREFIX 0x200
|
|
|
|
/* Some monitors require a different command when starting a program */
|
|
|
|
#define MO_RUN_FIRST_TIME 0x400
|
|
|
|
/* Don't expect echos when getting memory */
|
|
|
|
#define MO_NO_ECHO_ON_SETMEM 0x800
|
|
|
|
/* If set, then register store command expects value BEFORE regname */
|
|
|
|
#define MO_REGISTER_VALUE_FIRST 0x1000
|
|
|
|
/* If set, then the monitor displays registers as pairs. */
|
|
|
|
#define MO_32_REGS_PAIRED 0x2000
|
|
|
|
/* If set, then register setting happens interactively. */
|
|
|
|
#define MO_SETREG_INTERACTIVE 0x4000
|
|
|
|
/* If set, then memory setting happens interactively. */
|
|
|
|
#define MO_SETMEM_INTERACTIVE 0x8000
|
|
|
|
/* If set, then memory dumps are always on 16-byte boundaries, even
|
|
when less is desired. */
|
|
|
|
#define MO_GETMEM_16_BOUNDARY 0x10000
|
|
|
|
/* If set, then the monitor numbers its breakpoints starting from 1. */
|
|
|
|
#define MO_CLR_BREAK_1_BASED 0x20000
|
|
|
|
/* If set, then the monitor acks srecords with a plus sign. */
|
|
|
|
#define MO_SREC_ACK_PLUS 0x40000
|
|
|
|
/* If set, then the monitor "acks" srecords with rotating lines. */
|
|
|
|
#define MO_SREC_ACK_ROTATE 0x80000
|
|
|
|
/* If set, then remove useless address bits from memory addresses. */
|
|
|
|
#define MO_ADDR_BITS_REMOVE 0x100000
|
|
|
|
/* If set, then display target program output if prefixed by ^O. */
|
|
|
|
#define MO_PRINT_PROGRAM_OUTPUT 0x200000
|
|
|
|
/* Some dump bytes commands align the first data with the preceeding
|
|
16 byte boundary. Some print blanks and start at the exactly the
|
|
requested boundary. */
|
|
|
|
#define MO_EXACT_DUMPADDR 0x400000
|
|
|
|
/* Rather entering and exiting the write memory dialog for each word byte,
|
|
we can save time by transferring the whole block without exiting
|
|
the memory editing mode. You only need to worry about this
|
|
if you are doing memory downloading.
|
|
This engages a new write function registered with dcache.
|
|
*/
|
|
#define MO_HAS_BLOCKWRITES 0x800000
|
|
|
|
#define SREC_SIZE 160
|
|
|
|
extern void monitor_open PARAMS ((char *args, struct monitor_ops *ops,
|
|
int from_tty));
|
|
extern void monitor_close PARAMS ((int quitting));
|
|
extern char *monitor_supply_register PARAMS ((int regno, char *valstr));
|
|
extern int monitor_expect PARAMS ((char *prompt, char *buf, int buflen));
|
|
extern int monitor_expect_prompt PARAMS ((char *buf, int buflen));
|
|
extern void monitor_printf PARAMS ((char *, ...))
|
|
ATTR_FORMAT(printf, 1, 2);
|
|
extern void monitor_printf_noecho PARAMS ((char *, ...))
|
|
ATTR_FORMAT(printf, 1, 2);
|
|
extern void monitor_write PARAMS ((char *buf, int buflen));
|
|
extern int monitor_readchar PARAMS ((void));
|
|
extern char *monitor_get_dev_name PARAMS ((void));
|
|
extern void init_monitor_ops PARAMS ((struct target_ops *));
|
|
extern int monitor_dump_reg_block PARAMS((char * dump_cmd)) ;
|