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-rw-r--r--gdb/dink32-rom.c192
1 files changed, 192 insertions, 0 deletions
diff --git a/gdb/dink32-rom.c b/gdb/dink32-rom.c
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+/* Remote debugging interface for DINK32 (PowerPC) ROM monitor for
+ GDB, the GNU debugger.
+ Copyright 1997 Free Software Foundation, Inc.
+
+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 dink32_open PARAMS ((char *args, int from_tty));
+
+static void
+dink32_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;
+
+ 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);
+}
+
+static void
+dink32_load (monops, filename, from_tty)
+ struct monitor_ops *monops;
+ char *filename;
+ int from_tty;
+{
+ extern int inferior_pid;
+
+ generic_load (filename, from_tty);
+
+ /* Finally, make the PC point at the start address */
+ if (exec_bfd)
+ write_pc (bfd_get_start_address (exec_bfd));
+
+ inferior_pid = 0; /* No process now */
+}
+
+
+/* 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. */
+
+static char *dink32_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",
+
+ "srr0", "msr", "cr", "lr", "ctr", "xer", "xer"
+};
+
+static struct target_ops dink32_ops;
+
+static char *dink32_inits[] = {"\r", NULL};
+
+static struct monitor_ops dink32_cmds;
+
+static void
+dink32_open (args, from_tty)
+ char *args;
+ int from_tty;
+{
+ monitor_open (args, &dink32_cmds, from_tty);
+}
+
+void
+_initialize_dink32_rom ()
+{
+ dink32_cmds.flags = MO_HEX_PREFIX | MO_GETMEM_NEEDS_RANGE | MO_FILL_USES_ADDR | MO_HANDLE_NL | MO_32_REGS_PAIRED | MO_SETREG_INTERACTIVE | MO_SETMEM_INTERACTIVE | MO_GETMEM_16_BOUNDARY | MO_CLR_BREAK_1_BASED;
+ dink32_cmds.init = dink32_inits;
+ dink32_cmds.cont = "go +\r";
+ dink32_cmds.step = "tr +\r";
+ dink32_cmds.set_break = "bp 0x%x\r";
+ dink32_cmds.clr_break = "bp %d\r";
+ dink32_cmds.fill = "mf %x %x %x\r";
+ dink32_cmds.setmem.cmdb = "mm -b %x\r";
+ dink32_cmds.setmem.cmdw = "mm -w %x\r";
+ dink32_cmds.setmem.cmdl = "mm %x\r";
+ dink32_cmds.setmem.term = " ? ";
+ dink32_cmds.getmem.cmdb = "md %x\r";
+ dink32_cmds.getmem.resp_delim = " ";
+ dink32_cmds.setreg.cmd = "rm %s\r";
+ dink32_cmds.setreg.term = " ? ";
+ dink32_cmds.getreg.cmd = "rd %s\r";
+ dink32_cmds.getreg.resp_delim = ": ";
+ dink32_cmds.dump_registers = "rd r\r";
+ dink32_cmds.register_pattern = "\\(\\w+\\) +=\\([0-9a-fA-F]+\\b\\)";
+ dink32_cmds.supply_register = dink32_supply_register;
+ dink32_cmds.load = "dl -k\r";
+ dink32_cmds.load_routine = dink32_load;
+ dink32_cmds.prompt = "DINK32_603 >>";
+ dink32_cmds.line_term = "\r";
+ dink32_cmds.target = &dink32_ops;
+ dink32_cmds.stopbits = SERIAL_1_STOPBITS;
+ dink32_cmds.regnames = dink32_regnames;
+ dink32_cmds.magic = MONITOR_OPS_MAGIC;
+
+ init_monitor_ops (&dink32_ops);
+
+ dink32_ops.to_shortname = "dink32";
+ dink32_ops.to_longname = "DINK32 monitor";
+ dink32_ops.to_doc = "Debug using the DINK32 monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ dink32_ops.to_open = dink32_open;
+
+ add_target (&dink32_ops);
+}