[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
c906108c SS	1	/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
c906108c SS	2	for GDB, the GNU debugger.
7b6bb8da	3	Copyright (C) 1995, 1998, 1999, 2000, 2001, 2007, 2008, 2009, 2010, 2011
6aba47ca	4	Free Software Foundation, Inc.
c906108c SS	5
	6	Written by Stu Grossman of Cygnus Support
	7
c5aa993b	8	This file is part of GDB.
c906108c	9
c5aa993b JM	10	This program is free software; you can redistribute it and/or modify
c5aa993b JM	11	it under the terms of the GNU General Public License as published by
a9762ec7	12	the Free Software Foundation; either version 3 of the License, or
c5aa993b	13	(at your option) any later version.
c906108c	14
c5aa993b JM	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.
c906108c	19
c5aa993b	20	You should have received a copy of the GNU General Public License
a9762ec7	21	along with this program. If not, see <http://www.gnu.org/licenses/>. */
c906108c SS	22
	23	#include "defs.h"
	24	#include "gdbcore.h"
	25	#include "target.h"
	26	#include "monitor.h"
	27	#include "serial.h"
4e052eda	28	#include "regcache.h"
c906108c	29
c906108c	30	static void
c410a84c UW	31	ppcbug_supply_register (struct regcache regcache, char regname,
c410a84c UW	32	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
c410a84c	94	monitor_supply_register (regcache, regno, val);
c906108c SS	95	}
	96
	97	/*
0df8b418	98	* This array of registers needs to match the indexes used by GDB. The
c906108c SS	99	* whole reason this exists is because the various ROM monitors use
c906108c SS	100	* different names than GDB does, and don't support all the
0df8b418	101	* registers either. So, typing "info reg sp" becomes an "A7".
c906108c SS	102	*/
c906108c SS	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	/*
0df8b418	121	* Define the monitor command strings. Since these are passed directly
c906108c	122	* through to a printf style function, we need can include formatting
0df8b418	123	* strings. We also need a CR or LF on the end.
c906108c SS	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 */
0df8b418 MS	168	/* register_pattern */
0df8b418 MS	169	OPS->register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
23a6d369	170	OPS->supply_register = ppcbug_supply_register;
c5aa993b JM	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 */
c906108c SS	182	}
	183
	184
c5aa993b JM	185	static struct monitor_ops ppcbug_cmds0;
c5aa993b JM	186	static struct monitor_ops ppcbug_cmds1;
c906108c SS	187
c906108c SS	188	static void
fba45db2	189	ppcbug_open0 (char *args, int from_tty)
c906108c SS	190	{
	191	monitor_open (args, &ppcbug_cmds0, from_tty);
	192	}
	193
	194	static void
fba45db2	195	ppcbug_open1 (char *args, int from_tty)
c906108c SS	196	{
	197	monitor_open (args, &ppcbug_cmds1, from_tty);
	198	}
	199
a78f21af AC	200	extern initialize_file_ftype _initialize_ppcbug_rom; /* -Wmissing-prototypes */
a78f21af AC	201
c906108c	202	void
fba45db2	203	_initialize_ppcbug_rom (void)
c906108c	204	{
c5aa993b JM	205	init_ppc_cmds ("lo 0\r", &ppcbug_cmds0, &ppcbug_ops0);
c5aa993b JM	206	init_ppc_cmds ("lo 1\r", &ppcbug_cmds1, &ppcbug_ops1);
c906108c SS	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	}