[deliverable/binutils-gdb.git] / gdb / ppcbug-rom.c

/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
   for GDB, the GNU debugger.
   Copyright 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.

   Written by Stu Grossman of Cygnus Support

   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 "defs.h"
#include "gdbcore.h"
#include "target.h"
#include "monitor.h"
#include "serial.h"
#include "regcache.h"

static void
ppcbug_supply_register (char *regname, int regnamelen, char *val, int vallen)
{
  int regno = 0;

  if (regnamelen < 2 || regnamelen > 4)
    return;

  switch (regname[0])
    {
    case 'R':
      if (regname[1] < '0' || regname[1] > '9')
	return;
      if (regnamelen == 2)
	regno = regname[1] - '0';
      else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
	regno = (regname[1] - '0') * 10 + (regname[2] - '0');
      else
	return;
      break;
    case 'F':
      if (regname[1] != 'R' || regname[2] < '0' || regname[2] > '9')
	return;
      if (regnamelen == 3)
	regno = 32 + regname[2] - '0';
      else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
	regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
      else
	return;
      break;
    case 'I':
      if (regnamelen != 2 || regname[1] != 'P')
	return;
      regno = 64;
      break;
    case 'M':
      if (regnamelen != 3 || regname[1] != 'S' || regname[2] != 'R')
	return;
      regno = 65;
      break;
    case 'C':
      if (regnamelen != 2 || regname[1] != 'R')
	return;
      regno = 66;
      break;
    case 'S':
      if (regnamelen != 4 || regname[1] != 'P' || regname[2] != 'R')
	return;
      else if (regname[3] == '8')
	regno = 67;
      else if (regname[3] == '9')
	regno = 68;
      else if (regname[3] == '1')
	regno = 69;
      else if (regname[3] == '0')
	regno = 70;
      else
	return;
      break;
    default:
      return;
    }

  monitor_supply_register (regno, val);
}

/*
 * This array of registers needs to match the indexes used by GDB. The
 * whole reason this exists is because the various ROM monitors use
 * different names than GDB does, and don't support all the
 * registers either. So, typing "info reg sp" becomes an "A7".
 */

static char *ppcbug_regnames[] =
{
  "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
  "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
  "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
  "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",

  "fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
  "fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
  "fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
  "fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",

/* pc      ps      cnd     lr      cnt     xer     mq */
  "ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
};

/*
 * Define the monitor command strings. Since these are passed directly
 * through to a printf style function, we need can include formatting
 * strings. We also need a CR or LF on the end.
 */

static struct target_ops ppcbug_ops0;
static struct target_ops ppcbug_ops1;

static char *ppcbug_inits[] =
{"\r", NULL};

static void
init_ppc_cmds (char *LOAD_CMD,
	       struct monitor_ops *OPS,
	       struct target_ops *targops)
{
  OPS->flags = MO_CLR_BREAK_USES_ADDR | MO_HANDLE_NL;
  OPS->init = ppcbug_inits;	/* Init strings */
  OPS->cont = "g\r";		/* continue command */
  OPS->step = "t\r";		/* single step */
  OPS->stop = NULL;		/* interrupt command */
  OPS->set_break = "br %x\r";	/* set a breakpoint */
  OPS->clr_break = "nobr %x\r";	/* clear a breakpoint */
  OPS->clr_all_break = "nobr\r";	/* clear all breakpoints */
  OPS->fill = "bf %x:%x %x;b\r";	/* fill (start count val) */
  OPS->setmem.cmdb = "ms %x %02x\r";	/* setmem.cmdb (addr, value) */
  OPS->setmem.cmdw = "ms %x %04x\r";	/* setmem.cmdw (addr, value) */
  OPS->setmem.cmdl = "ms %x %08x\r";	/* setmem.cmdl (addr, value) */
  OPS->setmem.cmdll = NULL;	/* setmem.cmdll (addr, value) */
  OPS->setmem.resp_delim = NULL;	/* setreg.resp_delim */
  OPS->setmem.term = NULL;	/* setreg.term */
  OPS->setmem.term_cmd = NULL;	/* setreg.term_cmd */
  OPS->getmem.cmdb = "md %x:%x;b\r";	/* getmem.cmdb (addr, len) */
  OPS->getmem.cmdw = "md %x:%x;b\r";	/* getmem.cmdw (addr, len) */
  OPS->getmem.cmdl = "md %x:%x;b\r";	/* getmem.cmdl (addr, len) */
  OPS->getmem.cmdll = NULL;	/* getmem.cmdll (addr, len) */
  OPS->getmem.resp_delim = " ";	/* getmem.resp_delim */
  OPS->getmem.term = NULL;	/* getmem.term */
  OPS->getmem.term_cmd = NULL;	/* getmem.term_cmd */
  OPS->setreg.cmd = "rs %s %x\r";	/* setreg.cmd (name, value) */
  OPS->setreg.resp_delim = NULL;	/* setreg.resp_delim */
  OPS->setreg.term = NULL;	/* setreg.term */
  OPS->setreg.term_cmd = NULL;	/* setreg.term_cmd */
  OPS->getreg.cmd = "rs %s\r";	/* getreg.cmd (name) */
  OPS->getreg.resp_delim = "=";	/* getreg.resp_delim */
  OPS->getreg.term = NULL;	/* getreg.term */
  OPS->getreg.term_cmd = NULL;	/* getreg.term_cmd */
  OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";		/* register_pattern */
  OPS->supply_register = ppcbug_supply_register;	/* supply_register */
  OPS->dump_registers = "rd\r";	/* dump all registers */
  OPS->load_routine = NULL;	/* load_routine (defaults to SRECs) */
  OPS->load = LOAD_CMD;		/* download command */
  OPS->loadresp = NULL;		/* load response */
  OPS->prompt = "PPC1-Bug>";	/* monitor command prompt */
  OPS->line_term = "\r";	/* end-of-line terminator */
  OPS->cmd_end = NULL;		/* optional command terminator */
  OPS->target = targops;	/* target operations */
  OPS->stopbits = SERIAL_1_STOPBITS;	/* number of stop bits */
  OPS->regnames = ppcbug_regnames;	/* registers names */
  OPS->magic = MONITOR_OPS_MAGIC;	/* magic */
}


static struct monitor_ops ppcbug_cmds0;
static struct monitor_ops ppcbug_cmds1;

static void
ppcbug_open0 (char *args, int from_tty)
{
  monitor_open (args, &ppcbug_cmds0, from_tty);
}

static void
ppcbug_open1 (char *args, int from_tty)
{
  monitor_open (args, &ppcbug_cmds1, from_tty);
}

void
_initialize_ppcbug_rom (void)
{
  init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
  init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
  init_monitor_ops (&ppcbug_ops0);

  ppcbug_ops0.to_shortname = "ppcbug";
  ppcbug_ops0.to_longname = "PowerPC PPCBug monitor on port 0";
  ppcbug_ops0.to_doc = "Debug via the PowerPC PPCBug monitor using port 0.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
  ppcbug_ops0.to_open = ppcbug_open0;

  add_target (&ppcbug_ops0);

  init_monitor_ops (&ppcbug_ops1);

  ppcbug_ops1.to_shortname = "ppcbug1";
  ppcbug_ops1.to_longname = "PowerPC PPCBug monitor on port 1";
  ppcbug_ops1.to_doc = "Debug via the PowerPC PPCBug monitor using port 1.\n\
Specify the serial device it is connected to (e.g. /dev/ttya).";
  ppcbug_ops1.to_open = ppcbug_open1;

  add_target (&ppcbug_ops1);
}
Commit	Line	Data
c906108c SS	1	/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
c906108c SS	2	for GDB, the GNU debugger.
b6ba6518	3	Copyright 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
c906108c SS	4
	5	Written by Stu Grossman of Cygnus Support
	6
c5aa993b	7	This file is part of GDB.
c906108c	8
c5aa993b JM	9	This program is free software; you can redistribute it and/or modify
	10	it under the terms of the GNU General Public License as published by
	11	the Free Software Foundation; either version 2 of the License, or
	12	(at your option) any later version.
c906108c	13
c5aa993b JM	14	This program is distributed in the hope that it will be useful,
	15	but WITHOUT ANY WARRANTY; without even the implied warranty of
	16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	17	GNU General Public License for more details.
c906108c	18
c5aa993b JM	19	You should have received a copy of the GNU General Public License
	20	along with this program; if not, write to the Free Software
	21	Foundation, Inc., 59 Temple Place - Suite 330,
	22	Boston, MA 02111-1307, USA. */
c906108c SS	23
	24	#include "defs.h"
	25	#include "gdbcore.h"
	26	#include "target.h"
	27	#include "monitor.h"
	28	#include "serial.h"
4e052eda	29	#include "regcache.h"
c906108c	30
c906108c	31	static void
fba45db2	32	ppcbug_supply_register (char regname, int regnamelen, char val, int vallen)
c906108c	33	{
d4f3574e	34	int regno = 0;
c906108c SS	35
	36	if (regnamelen < 2 \|\| regnamelen > 4)
	37	return;
	38
	39	switch (regname[0])
	40	{
	41	case 'R':
	42	if (regname[1] < '0' \|\| regname[1] > '9')
	43	return;
	44	if (regnamelen == 2)
	45	regno = regname[1] - '0';
	46	else if (regnamelen == 3 && regname[2] >= '0' && regname[2] <= '9')
	47	regno = (regname[1] - '0') * 10 + (regname[2] - '0');
	48	else
	49	return;
	50	break;
	51	case 'F':
	52	if (regname[1] != 'R' \|\| regname[2] < '0' \|\| regname[2] > '9')
	53	return;
	54	if (regnamelen == 3)
	55	regno = 32 + regname[2] - '0';
	56	else if (regnamelen == 4 && regname[3] >= '0' && regname[3] <= '9')
	57	regno = 32 + (regname[2] - '0') * 10 + (regname[3] - '0');
	58	else
	59	return;
	60	break;
	61	case 'I':
	62	if (regnamelen != 2 \|\| regname[1] != 'P')
	63	return;
	64	regno = 64;
	65	break;
	66	case 'M':
	67	if (regnamelen != 3 \|\| regname[1] != 'S' \|\| regname[2] != 'R')
	68	return;
	69	regno = 65;
	70	break;
	71	case 'C':
	72	if (regnamelen != 2 \|\| regname[1] != 'R')
	73	return;
	74	regno = 66;
	75	break;
	76	case 'S':
	77	if (regnamelen != 4 \|\| regname[1] != 'P' \|\| regname[2] != 'R')
	78	return;
	79	else if (regname[3] == '8')
	80	regno = 67;
	81	else if (regname[3] == '9')
	82	regno = 68;
	83	else if (regname[3] == '1')
	84	regno = 69;
	85	else if (regname[3] == '0')
	86	regno = 70;
	87	else
	88	return;
	89	break;
	90	default:
	91	return;
	92	}
	93
	94	monitor_supply_register (regno, val);
	95	}
	96
	97	/*
	98	* This array of registers needs to match the indexes used by GDB. The
99	* whole reason this exists is because the various ROM monitors use
100	* different names than GDB does, and don't support all the
101	* registers either. So, typing "info reg sp" becomes an "A7".
102	*/
103
fe794dc6	104	static char *ppcbug_regnames[] =
c906108c	105	{
c5aa993b JM	106	"r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7",
	107	"r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",
	108	"r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23",
	109	"r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31",
c906108c	110
c5aa993b JM	111	"fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
c5aa993b JM	112	"fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
c906108c SS	113	"fr16", "fr17", "fr18", "fr19", "fr20", "fr21", "fr22", "fr23",
	114	"fr24", "fr25", "fr26", "fr27", "fr28", "fr29", "fr30", "fr31",
	115
	116	/* pc ps cnd lr cnt xer mq */
c5aa993b	117	"ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
c906108c SS	118	};
	119
	120	/*
	121	* Define the monitor command strings. Since these are passed directly
	122	* through to a printf style function, we need can include formatting
	123	* strings. We also need a CR or LF on the end.
	124	*/
	125
	126	static struct target_ops ppcbug_ops0;
	127	static struct target_ops ppcbug_ops1;
	128
c5aa993b JM	129	static char *ppcbug_inits[] =
c5aa993b JM	130	{"\r", NULL};
c906108c SS	131
c906108c SS	132	static void
c5aa993b JM	133	init_ppc_cmds (char *LOAD_CMD,
	134	struct monitor_ops *OPS,
	135	struct target_ops *targops)
c906108c	136	{
c5aa993b JM	137	OPS->flags = MO_CLR_BREAK_USES_ADDR \| MO_HANDLE_NL;
	138	OPS->init = ppcbug_inits; /* Init strings */
	139	OPS->cont = "g\r"; /* continue command */
	140	OPS->step = "t\r"; /* single step */
	141	OPS->stop = NULL; /* interrupt command */
	142	OPS->set_break = "br %x\r"; /* set a breakpoint */
	143	OPS->clr_break = "nobr %x\r"; /* clear a breakpoint */
c906108c	144	OPS->clr_all_break = "nobr\r"; /* clear all breakpoints */
c5aa993b JM	145	OPS->fill = "bf %x:%x %x;b\r"; /* fill (start count val) */
	146	OPS->setmem.cmdb = "ms %x %02x\r"; /* setmem.cmdb (addr, value) */
	147	OPS->setmem.cmdw = "ms %x %04x\r"; /* setmem.cmdw (addr, value) */
	148	OPS->setmem.cmdl = "ms %x %08x\r"; /* setmem.cmdl (addr, value) */
	149	OPS->setmem.cmdll = NULL; /* setmem.cmdll (addr, value) */
	150	OPS->setmem.resp_delim = NULL; /* setreg.resp_delim */
	151	OPS->setmem.term = NULL; /* setreg.term */
	152	OPS->setmem.term_cmd = NULL; /* setreg.term_cmd */
	153	OPS->getmem.cmdb = "md %x:%x;b\r"; /* getmem.cmdb (addr, len) */
	154	OPS->getmem.cmdw = "md %x:%x;b\r"; /* getmem.cmdw (addr, len) */
	155	OPS->getmem.cmdl = "md %x:%x;b\r"; /* getmem.cmdl (addr, len) */
	156	OPS->getmem.cmdll = NULL; /* getmem.cmdll (addr, len) */
	157	OPS->getmem.resp_delim = " "; /* getmem.resp_delim */
	158	OPS->getmem.term = NULL; /* getmem.term */
	159	OPS->getmem.term_cmd = NULL; /* getmem.term_cmd */
	160	OPS->setreg.cmd = "rs %s %x\r"; /* setreg.cmd (name, value) */
	161	OPS->setreg.resp_delim = NULL; /* setreg.resp_delim */
	162	OPS->setreg.term = NULL; /* setreg.term */
	163	OPS->setreg.term_cmd = NULL; /* setreg.term_cmd */
	164	OPS->getreg.cmd = "rs %s\r"; /* getreg.cmd (name) */
	165	OPS->getreg.resp_delim = "="; /* getreg.resp_delim */
	166	OPS->getreg.term = NULL; /* getreg.term */
	167	OPS->getreg.term_cmd = NULL; /* getreg.term_cmd */
	168	OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)"; /* register_pattern */
	169	OPS->supply_register = ppcbug_supply_register; /* supply_register */
	170	OPS->dump_registers = "rd\r"; /* dump all registers */
	171	OPS->load_routine = NULL; /* load_routine (defaults to SRECs) */
	172	OPS->load = LOAD_CMD; /* download command */
	173	OPS->loadresp = NULL; /* load response */
	174	OPS->prompt = "PPC1-Bug>"; /* monitor command prompt */
	175	OPS->line_term = "\r"; /* end-of-line terminator */
	176	OPS->cmd_end = NULL; /* optional command terminator */
	177	OPS->target = targops; /* target operations */
	178	OPS->stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
	179	OPS->regnames = ppcbug_regnames; /* registers names */
	180	OPS->magic = MONITOR_OPS_MAGIC; /* magic */
c906108c SS	181	}
	182
	183
c5aa993b JM	184	static struct monitor_ops ppcbug_cmds0;
c5aa993b JM	185	static struct monitor_ops ppcbug_cmds1;
c906108c SS	186
c906108c SS	187	static void
fba45db2	188	ppcbug_open0 (char *args, int from_tty)
c906108c SS	189	{
	190	monitor_open (args, &ppcbug_cmds0, from_tty);
	191	}
	192
	193	static void
fba45db2	194	ppcbug_open1 (char *args, int from_tty)
c906108c SS	195	{
	196	monitor_open (args, &ppcbug_cmds1, from_tty);
	197	}
	198
	199	void
fba45db2	200	_initialize_ppcbug_rom (void)
c906108c	201	{
c5aa993b JM	202	init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
c5aa993b JM	203	init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
c906108c SS	204	init_monitor_ops (&ppcbug_ops0);
	205
	206	ppcbug_ops0.to_shortname = "ppcbug";
	207	ppcbug_ops0.to_longname = "PowerPC PPCBug monitor on port 0";
	208	ppcbug_ops0.to_doc = "Debug via the PowerPC PPCBug monitor using port 0.\n\
	209	Specify the serial device it is connected to (e.g. /dev/ttya).";
	210	ppcbug_ops0.to_open = ppcbug_open0;
	211
	212	add_target (&ppcbug_ops0);
	213
	214	init_monitor_ops (&ppcbug_ops1);
	215
	216	ppcbug_ops1.to_shortname = "ppcbug1";
	217	ppcbug_ops1.to_longname = "PowerPC PPCBug monitor on port 1";
	218	ppcbug_ops1.to_doc = "Debug via the PowerPC PPCBug monitor using port 1.\n\
	219	Specify the serial device it is connected to (e.g. /dev/ttya).";
	220	ppcbug_ops1.to_open = ppcbug_open1;
	221
	222	add_target (&ppcbug_ops1);
	223	}