--- /dev/null
+/* 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_open PARAMS ((char *args, int from_tty));
+
+static void
+ppcbug_supply_register (regname, regnamelen, val, vallen)
+ char *regname;
+ int regnamelen;
+ char *val;
+ int vallen;
+{
+ int regno = 0, base = 0;
+
+ if (regnamelen < 2 || regnamelen > 4)
+ return;
+
+ fprintf_unfiltered(stderr, "ppcbug_supply_register, %.*s = %.*s\n", regnamelen, regname, vallen, val);
+ 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[NUM_REGS] =
+{
+ "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_ops;
+
+static char *ppcbug_inits[] = {"\r", NULL};
+
+static struct monitor_ops ppcbug_cmds =
+{
+ MO_CLR_BREAK_USES_ADDR,
+ ppcbug_inits, /* Init strings */
+ "g\r", /* continue command */
+ "t\r", /* single step */
+ NULL, /* interrupt command */
+ "br %x\r", /* set a breakpoint */
+ "nobr %x\r", /* clear a breakpoint */
+ "nobr\r", /* clear all breakpoints */
+ "bf %x:%x %x;b\r", /* fill (start count val) */
+ {
+ "ms %x %02x\r", /* setmem.cmdb (addr, value) */
+ "ms %x %04x\r", /* setmem.cmdw (addr, value) */
+ "ms %x %08x\r", /* setmem.cmdl (addr, value) */
+ NULL, /* setmem.cmdll (addr, value) */
+ NULL, /* setreg.resp_delim */
+ NULL, /* setreg.term */
+ NULL, /* setreg.term_cmd */
+ },
+ {
+ "md %x:%x;b\r", /* getmem.cmdb (addr, len) */
+ "md %x:%x;b\r", /* getmem.cmdw (addr, len) */
+ "md %x:%x;b\r", /* getmem.cmdl (addr, len) */
+ NULL, /* getmem.cmdll (addr, len) */
+ " ", /* getmem.resp_delim */
+ NULL, /* getmem.term */
+ NULL, /* getmem.term_cmd */
+ },
+ {
+ "rs %s %x\r", /* setreg.cmd (name, value) */
+ NULL, /* setreg.resp_delim */
+ NULL, /* setreg.term */
+ NULL /* setreg.term_cmd */
+ },
+ {
+ "rs %s\r", /* getreg.cmd (name) */
+ "=", /* getreg.resp_delim */
+ NULL, /* getreg.term */
+ NULL /* getreg.term_cmd */
+ },
+ "rd\r", /* dump_registers */
+ "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)", /* register_pattern */
+ ppcbug_supply_register, /* supply_register */
+ NULL, /* load_routine (defaults to SRECs) */
+ "lo 0\r", /* download command */
+ NULL, /* load response */
+ "PPC1-Bug>", /* monitor command prompt */
+ "\r", /* end-of-line terminator */
+ NULL, /* optional command terminator */
+ &ppcbug_ops, /* target operations */
+ SERIAL_1_STOPBITS, /* number of stop bits */
+ ppcbug_regnames, /* registers names */
+ MONITOR_OPS_MAGIC /* magic */
+ };
+
+static void
+ppcbug_open(args, from_tty)
+ char *args;
+ int from_tty;
+{
+ monitor_open (args, &ppcbug_cmds, from_tty);
+}
+
+void
+_initialize_ppcbug_rom ()
+{
+ init_monitor_ops (&ppcbug_ops);
+
+ ppcbug_ops.to_shortname = "ppcbug";
+ ppcbug_ops.to_longname = "PowerPC PPCBug monitor";
+ ppcbug_ops.to_doc = "Debug via the PowerPC PPCBug monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ ppcbug_ops.to_open = ppcbug_open;
+
+ add_target (&ppcbug_ops);
+}
projects / binutils-gdb.git / commitdiff