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* findvar.c (read_register_bytes write_register_bytes): Make

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these routines much smarter about updating registers from the
	target, only doing so when absolutely necessary.  This really
	speeds up register modification on some remote targets.

	* monitor.c:  More cleanups.  Get rid of monitor_load_ascii_srec.
	BFD makes this unnecessary.  Lots of debugging speedups.
	* (expect):  NULL terminate return string.
	* (monitor_open	monitor_supply_register parse_register_dump
	monitor_wait monitor_fetch_register):  Switch to using GNU regexp
	library to parse multi-register displays.
	* (monitor_read_memory): Read multiple bytes (up to 16) at once.
	* (monitor_create_inferior):  Call clear_proceed_status to make run
	command notice first breakpoint.
	* (monitor_load):  Clean up.  Reset inferior_pid, set pc to start
	address and reset symbol table stuff to make loads put things into
	a fresh state.
	* (monitor_load_srec):  Lower sleep time to 1 second.

	* monitor.h (struct monitor_ops):  Add register_pattern and
	supply_register to monitor_ops.

	* rom68k-rom.c:  Add new support for handling register dumps.
This commit is contained in:
Stu Grossman 1995-03-15 23:31:14 +00:00
parent a7f6f40b3c
commit 2081365ffa
3 changed files with 89 additions and 2 deletions
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26
gdb/ChangeLog
View file

@ -1,3 +1,29 @@
Wed Mar 15 15:09:29 1995 Stu Grossman (grossman@cygnus.com)
* findvar.c (read_register_bytes write_register_bytes): Make
these routines much smarter about updating registers from the
target, only doing so when absolutely necessary. This really
speeds up register modification on some remote targets.
* monitor.c: More cleanups. Get rid of monitor_load_ascii_srec.
BFD makes this unnecessary. Lots of debugging speedups.
* (expect): NULL terminate return string.
* (monitor_open monitor_supply_register parse_register_dump
monitor_wait monitor_fetch_register): Switch to using GNU regexp
library to parse multi-register displays.
* (monitor_read_memory): Read multiple bytes (up to 16) at once.
* (monitor_create_inferior): Call clear_proceed_status to make run
command notice first breakpoint.
* (monitor_load): Clean up. Reset inferior_pid, set pc to start
address and reset symbol table stuff to make loads put things into
a fresh state.
* (monitor_load_srec): Lower sleep time to 1 second.
* monitor.h (struct monitor_ops): Add register_pattern and
supply_register to monitor_ops.
* rom68k-rom.c: Add new support for handling register dumps.
Wed Mar 15 15:18:27 1995 Jim Kingdon (kingdon@lioth.cygnus.com)
* utils.c, defs.h (putchar_unfiltered, fputc_unfiltered): Make

8
gdb/monitor.h
View file

@ -76,6 +76,13 @@ struct monitor_ops {
struct cmd_resp getmem; /* display memory */
struct cmd_resp setreg; /* set a register */
struct cmd_resp 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 *register_pattern; /* Pattern that picks out register from reg dump */
void (*supply_register) PARAMS ((char *name, int namelen, char *val, int vallen));
char *load; /* load command */
char *prompt; /* monitor command prompt */
char *cmd_delim; /* end-of-command delimitor */
@ -133,3 +140,4 @@ extern struct monitor_ops *current_monitor;
#define REG_DELIM (current_monitor->regset.delim)
extern void monitor_open PARAMS ((char *args, struct monitor_ops *ops, int from_tty));
extern char *monitor_supply_register PARAMS ((int regno, char *valstr));

57
gdb/rom68k-rom.c
View file

@ -25,7 +25,57 @@ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
#include "monitor.h"
#include "serial.h"
void rom68k_open();
static void rom68k_open PARAMS ((char *args, int from_tty));
static void
rom68k_supply_register (regname, regnamelen, val, vallen)
char *regname;
int regnamelen;
char *val;
int vallen;
{
int numregs;
int regno;
numregs = 1;
regno = -1;
if (regnamelen == 2)
switch (regname[0])
{
case 'S':
if (regname[1] == 'R')
regno = PS_REGNUM;
break;
case 'P':
if (regname[1] == 'C')
regno = PC_REGNUM;
break;
case 'D':
if (regname[1] != 'R')
break;
regno = D0_REGNUM;
numregs = 8;
break;
case 'A':
if (regname[1] != 'R')
break;
regno = A0_REGNUM;
numregs = 7;
break;
}
else if (regnamelen == 3)
switch (regname[0])
{
case 'I':
if (regname[1] == 'S' && regname[2] == 'P')
regno = SP_REGNUM;
}
if (regno >= 0)
while (numregs-- > 0)
val = monitor_supply_register (regno++, val);
}
/*
* this array of registers need to match the indexes used by GDB. The
@ -66,7 +116,7 @@ static struct monitor_ops rom68k_cmds =
NULL, /* setreg.term_cmd */
},
{
"dm %x 1\r", /* getmem.cmd (addr) */
"dm %x %x\r", /* getmem.cmd (addr, len) */
" ", /* getmem.resp_delim */
NULL, /* getmem.term */
NULL, /* getmem.term_cmd */
@ -83,6 +133,9 @@ static struct monitor_ops rom68k_cmds =
"= ", /* getreg.term */
".\r" /* getreg.term_cmd */
},
/* register_pattern */
"\\(\\w+\\)=\\([0-9a-fA-F]+\\( +[0-9a-fA-F]+\\b\\)*\\)",
rom68k_supply_register, /* supply_register */
"dc\r", /* download command */
"ROM68K :->", /* monitor command prompt */
"=", /* end-of-command delimitor */