mirror of
https://github.com/darlinghq/darling-gdb.git
synced 2024-11-25 13:09:48 +00:00
223 lines
7.3 KiB
C
223 lines
7.3 KiB
C
/* Remote debugging interface for PPCbug (PowerPC) Rom monitor
|
|
for GDB, the GNU debugger.
|
|
Copyright 1995 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"
|
|
|
|
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);
|
|
}
|