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

/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
   for GDB, the GNU debugger.
   Copyright (C) 1995, 1998, 1999, 2000, 2001, 2007, 2008, 2009, 2010, 2011
   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 3 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, see <http://www.gnu.org/licenses/>.  */

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

static void
ppcbug_supply_register (struct regcache *regcache, 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 (regcache, 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 */
				/* register_pattern */
  OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
  OPS->supply_register = ppcbug_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);
}

extern initialize_file_ftype _initialize_ppcbug_rom; /* -Wmissing-prototypes */

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
	1	/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
	2	for GDB, the GNU debugger.
	3	Copyright (C) 1995, 1998, 1999, 2000, 2001, 2007, 2008, 2009, 2010, 2011
	4	Free Software Foundation, Inc.
	5
	6	Written by Stu Grossman of Cygnus Support
	7
	8	This file is part of GDB.
	9
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 3 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
	21	along with this program. If not, see <http://www.gnu.org/licenses/>. */
	22
	23	#include "defs.h"
	24	#include "gdbcore.h"
	25	#include "target.h"
	26	#include "monitor.h"
	27	#include "serial.h"
	28	#include "regcache.h"
	29
	30	static void
	31	ppcbug_supply_register (struct regcache regcache, char regname,
	32	int regnamelen, char *val, int vallen)
	33	{
	34	int regno = 0;
	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 (regcache, 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
	104	static char *ppcbug_regnames[] =
	105	{
	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",
	110
	111	"fr0", "fr1", "fr2", "fr3", "fr4", "fr5", "fr6", "fr7",
	112	"fr8", "fr9", "fr10", "fr11", "fr12", "fr13", "fr14", "fr15",
	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 */
	117	"ip", "msr", "cr", "spr8", "spr9", "spr1", "spr0"
	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
	129	static char *ppcbug_inits[] =
	130	{"\r", NULL};
	131
	132	static void
	133	init_ppc_cmds (char *LOAD_CMD,
	134	struct monitor_ops *OPS,
	135	struct target_ops *targops)
	136	{
	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 */
	144	OPS->clr_all_break = "nobr\r"; /* clear all breakpoints */
	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	/* register_pattern */
	169	OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
	170	OPS->supply_register = ppcbug_supply_register;
	171	OPS->dump_registers = "rd\r"; /* dump all registers */
	172	OPS->load_routine = NULL; /* load_routine (defaults to SRECs) */
	173	OPS->load = LOAD_CMD; /* download command */
	174	OPS->loadresp = NULL; /* load response */
	175	OPS->prompt = "PPC1-Bug>"; /* monitor command prompt */
	176	OPS->line_term = "\r"; /* end-of-line terminator */
	177	OPS->cmd_end = NULL; /* optional command terminator */
	178	OPS->target = targops; /* target operations */
	179	OPS->stopbits = SERIAL_1_STOPBITS; /* number of stop bits */
	180	OPS->regnames = ppcbug_regnames; /* registers names */
	181	OPS->magic = MONITOR_OPS_MAGIC; /* magic */
	182	}
	183
	184
	185	static struct monitor_ops ppcbug_cmds0;
	186	static struct monitor_ops ppcbug_cmds1;
	187
	188	static void
	189	ppcbug_open0 (char *args, int from_tty)
	190	{
	191	monitor_open (args, &ppcbug_cmds0, from_tty);
	192	}
	193
	194	static void
	195	ppcbug_open1 (char *args, int from_tty)
	196	{
	197	monitor_open (args, &ppcbug_cmds1, from_tty);
	198	}
	199
	200	extern initialize_file_ftype _initialize_ppcbug_rom; /* -Wmissing-prototypes */
	201
	202	void
	203	_initialize_ppcbug_rom (void)
	204	{
	205	init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
	206	init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
	207	init_monitor_ops (&ppcbug_ops0);
	208
	209	ppcbug_ops0.to_shortname = "ppcbug";
	210	ppcbug_ops0.to_longname = "PowerPC PPCBug monitor on port 0";
	211	ppcbug_ops0.to_doc = "Debug via the PowerPC PPCBug monitor using port 0.\n\
	212	Specify the serial device it is connected to (e.g. /dev/ttya).";
	213	ppcbug_ops0.to_open = ppcbug_open0;
	214
	215	add_target (&ppcbug_ops0);
	216
	217	init_monitor_ops (&ppcbug_ops1);
	218
	219	ppcbug_ops1.to_shortname = "ppcbug1";
	220	ppcbug_ops1.to_longname = "PowerPC PPCBug monitor on port 1";
	221	ppcbug_ops1.to_doc = "Debug via the PowerPC PPCBug monitor using port 1.\n\
	222	Specify the serial device it is connected to (e.g. /dev/ttya).";
	223	ppcbug_ops1.to_open = ppcbug_open1;
	224
	225	add_target (&ppcbug_ops1);
	226	}