import gdb-1999-08-09 snapshot

1 files changed, 206 insertions, 0 deletions

diff --git a/gdb/mcore-rom.c b/gdb/mcore-rom.c
new file mode 100644
index 0000000..e28fddc
--- /dev/null
+++ b/gdb/mcore-rom.c
@@ -0,0 +1,206 @@
+/* Remote debugging interface to Motorola picobug monitor for gdb,
+   the GNU debugger.
+   Copyright 1999 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 "gdb_string.h"
+
+/* Functions used only in this file. */
+
+static void init_picobug_cmds (void);
+
+
+/* Functions exported from this file. */
+
+void _initialize_picobug_rom (void);
+
+void picobug_open (char *args, int from_tty);
+
+int picobug_dumpregs (void);
+
+
+static char *picobug_inits[] =
+{"\r", NULL};
+
+static struct target_ops picobug_ops;
+static struct monitor_ops picobug_cmds;
+
+/* Picobug only supports a subset of registers from MCore. In reality,
+   it doesn't support ss1, either. */
+/* *INDENT-OFF* */
+static char *picobug_regnames[] = {
+  "r0",   "r1",   "r2",   "r3",   "r4",   "r5",   "r6",   "r7",
+  "r8",   "r9",   "r10",  "r11",  "r12",  "r13",  "r14",  "r15",
+  0,      0,      0,      0,      0,      0,      0,      0,
+  0,      0,      0,      0,      0,      0,      0,      0,
+  "psr",  "vbr",  "epsr", "fpsr", "epc",  "fpc",  0,      "ss1",
+  "ss2",  "ss3",  "ss4",  0,      0,      0,      0,      0,
+  0,      0,      0,      0,      0,      0,      0,      0,
+  0,      0,      0,      0,      0,      0,      0,      0,
+  "pc" };
+/* *INDENT-ON* */
+
+
+
+void
+picobug_open (char *args, int from_tty)
+{
+  monitor_open (args, &picobug_cmds, from_tty);
+}
+/* *INDENT-OFF* */
+/* We choose to write our own dumpregs routine, since the output of
+   the register dumping is rather difficult to encapsulate in a
+   regexp:
+
+picobug> rd                                                                 
+     pc 2f00031e      epc 2f00031e      fpc 00000000
+    psr 80000101     epsr 80000101     fpsr 00000000
+ss0-ss4 bad0beef 00000000 00000000 00000000 00000000      vbr 30005c00
+  r0-r7 2f0fff4c 00000090 00000001 00000002 00000003 00000004 00000005 00000006
+ r8-r15 2f0fff64 00000000 00000000 00000000 00000000 00000000 00000000 2f00031e */
+/* *INDENT-ON* */
+
+
+
+int
+picobug_dumpregs ()
+{
+  char buf[1024];
+  int resp_len;
+  char *p;
+
+  /* Send the dump register command to the monitor and
+     get the reply. */
+  monitor_printf (picobug_cmds.dump_registers);
+  resp_len = monitor_expect_prompt (buf, sizeof (buf));
+
+  p = strtok (buf, " \t\r\n");
+  while (p)
+    {
+      if (strchr (p, '-'))
+	{
+	  /* got a range. either r0-r7, r8-r15 or ss0-ss4 */
+	  if (STREQN (p, "r0", 2) || STREQN (p, "r8", 2))
+	    {
+	      int rn = (p[1] == '0' ? 0 : 8);
+	      int i = 0;
+
+	      /* Get the next 8 values and record them. */
+	      while (i < 8)
+		{
+		  p = strtok (NULL, " \t\r\n");
+		  if (p)
+		    monitor_supply_register (rn + i, p);
+		  i++;
+		}
+	    }
+	  else if (STREQN (p, "ss", 2))
+	    {
+	      /* get the next five values, ignoring the first */
+	      int rn;
+	      p = strtok (NULL, " \t\r\n");
+	      for (rn = 39; rn < 43; rn++)
+		{
+		  p = strtok (NULL, " \t\r\n");
+		  if (p)
+		    monitor_supply_register (rn, p);
+		}
+	    }
+	  else
+	    {
+	      break;
+	    }
+	}
+      else
+	{
+	  /* Simple register type, paired */
+	  char *name = p;
+	  int i;
+
+	  /* Get and record value */
+	  p = strtok (NULL, " \t\r\n");
+	  if (p)
+	    {
+	      for (i = 0; i < NUM_REGS; i++)
+		{
+		  if (picobug_regnames[i] && STREQ (picobug_regnames[i], name))
+		    break;
+		}
+
+	      if (i <= NUM_REGS)
+		monitor_supply_register (i, p);
+	    }
+	}
+      p = strtok (NULL, " \t\r\n");
+    }
+
+  return 0;
+}
+
+static void
+init_picobug_cmds (void)
+{
+  picobug_cmds.flags = MO_GETMEM_NEEDS_RANGE | MO_CLR_BREAK_USES_ADDR | MO_PRINT_PROGRAM_OUTPUT;
+
+  picobug_cmds.init = picobug_inits;	/* Init strings                       */
+  picobug_cmds.cont = "g\n";	/* continue command                   */
+  picobug_cmds.step = "s\n";	/* single step                        */
+  picobug_cmds.set_break = "br %x\n";	/* set a breakpoint                   */
+  picobug_cmds.clr_break = "nobr %x\n";		/* clear a breakpoint                 */
+  picobug_cmds.clr_all_break = "nobr\n";	/* clear all breakpoints              */
+  picobug_cmds.setmem.cmdb = "mm %x %x ;b\n";	/* setmem.cmdb (addr, value)          */
+  picobug_cmds.setmem.cmdw = "mm %x %x ;h\n";	/* setmem.cmdw (addr, value)          */
+  picobug_cmds.setmem.cmdl = "mm %x %x ;w\n";	/* setmem.cmdl (addr, value)          */
+  picobug_cmds.getmem.cmdb = "md %x %x\n";	/* getmem.cmdb (start addr, end addr) */
+  picobug_cmds.getmem.resp_delim = ":";		/* getmem.resp_delim                  */
+  picobug_cmds.setreg.cmd = "rm %s %x\n";	/* setreg.cmd (name, value)           */
+  picobug_cmds.getreg.cmd = "rd %s\n";	/* getreg.cmd (name)                  */
+  picobug_cmds.getreg.resp_delim = ":";		/* getreg.resp_delim                  */
+  picobug_cmds.dump_registers = "rd\n";		/* dump_registers                     */
+  picobug_cmds.dumpregs = picobug_dumpregs;	/* dump registers parser              */
+  picobug_cmds.load = "lo\n";	/* download command                   */
+  picobug_cmds.prompt = "picobug> ";	/* monitor command prompt             */
+  picobug_cmds.line_term = "\n";	/* end-of-line terminator             */
+  picobug_cmds.target = &picobug_ops;	/* target operations                  */
+  picobug_cmds.stopbits = SERIAL_1_STOPBITS;	/* number of stop bits                */
+  picobug_cmds.regnames = picobug_regnames;	/* registers names                    */
+  picobug_cmds.num_breakpoints = 20;	/* number of breakpoints              */
+  picobug_cmds.magic = MONITOR_OPS_MAGIC;	/* magic                              */
+}
+
+void
+_initialize_picobug_rom ()
+{
+  int i;
+
+  /* Initialize m32r RevC monitor target */
+  init_picobug_cmds ();
+  init_monitor_ops (&picobug_ops);
+  picobug_ops.to_shortname = "picobug";
+  picobug_ops.to_longname = "picobug monitor";
+  picobug_ops.to_doc = "Debug via the picobug monitor.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+  picobug_ops.to_open = picobug_open;
+
+  add_target (&picobug_ops);
+}