--- /dev/null
+/* Remote target communications for d10v connected via a serial line.
+ Copyright 1988, 1991, 1992, 1993, 1994, 1995, 1996, 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 "gdb_string.h"
+#include <fcntl.h>
+#include "frame.h"
+#include "inferior.h"
+#include "bfd.h"
+#include "symfile.h"
+#include "target.h"
+#include "wait.h"
+/*#include "terminal.h"*/
+#include "gdbcmd.h"
+#include "objfiles.h"
+#include "gdb-stabs.h"
+#include "gdbthread.h"
+
+#include "dcache.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <signal.h>
+#include "serial.h"
+
+/* Prototypes for local functions */
+
+static int remote_d10v_xfer_memory PARAMS ((CORE_ADDR memaddr, char *myaddr,
+ int len, int should_write,
+ struct target_ops *target));
+
+static void remote_d10v_open PARAMS ((char *name, int from_tty));
+
+static void remote_d10v_mourn PARAMS ((void));
+
+static void initialize_remote_d10v_ops PARAMS ((int copy_remote));
+
+/* Define the target subroutine names */
+
+struct target_ops remote_d10v_ops;
+extern struct target_ops remote_ops;
+extern struct target_ops extended_remote_ops;
+struct target_ops *inherited_ops = &extended_remote_ops;
+
+void
+init_remote_d10v_ops (copy_remote)
+ int copy_remote;
+{
+ printf_filtered ("Opening d10v ...\n");
+ if (copy_remote)
+ memcpy (&remote_d10v_ops, inherited_ops, sizeof remote_d10v_ops);
+ remote_d10v_ops.to_shortname = "d10v";
+ remote_d10v_ops.to_longname = "Remote d10v serial target in gdb-specific protocol";
+ remote_d10v_ops.to_doc = "Use a remote d10v via a serial line, using a gdb-specific protocol.\n\
+Specify the serial device it is connected to (e.g. /dev/ttya).";
+ remote_d10v_ops.to_open = remote_d10v_open;
+ remote_d10v_ops.to_xfer_memory = remote_d10v_xfer_memory;
+ remote_d10v_ops.to_mourn_inferior = remote_d10v_mourn;
+ remote_d10v_ops.to_magic = OPS_MAGIC;
+}
+
+
+/* Open a connection to a remote debugger.
+ NAME is the filename used for communication. */
+
+static void
+remote_d10v_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ init_remote_d10v_ops (1);
+ open_remote_target (name, from_tty, &remote_d10v_ops,
+ inherited_ops == &extended_remote_ops);
+}
+
+
+/* Worker function for remote_mourn. */
+static void
+remote_d10v_mourn ()
+{
+ if (inherited_ops == &remote_ops)
+ {
+ unpush_target (&remote_d10v_ops);
+ generic_mourn_inferior ();
+ }
+ /* see remote.c:extended_remote_mourn() for why an extended remote
+ target doesn't mourn */
+}
+
+
+/* Read or write LEN bytes from inferior memory at MEMADDR, transferring
+ to or from debugger address MYADDR. Write to inferior if SHOULD_WRITE is
+ nonzero. Returns length of data written or read; 0 for error. */
+
+/* ARGSUSED */
+static int
+remote_d10v_xfer_memory(memaddr, myaddr, nr_bytes, write_p, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int nr_bytes;
+ int write_p;
+ struct target_ops *target; /* ignored */
+{
+ CORE_ADDR phys;
+ CORE_ADDR seg;
+ CORE_ADDR off;
+ char *from = "unknown";
+ char *to = "unknown";
+ unsigned short imap0 = read_register (IMAP0_REGNUM);
+ unsigned short imap1 = read_register (IMAP1_REGNUM);
+ unsigned short dmap = read_register (DMAP_REGNUM);
+
+ /* GDB interprets addresses as:
+
+ 0x00xxxxxx: Logical data address segment (DMAP translated memory)
+ 0x01xxxxxx: Logical instruction address segment (IMAP translated memory)
+ 0x10xxxxxx: Physical data memory segment (On-chip data memory)
+ 0x11xxxxxx: Physical instruction memory segment (On-chip insn memory)
+ 0x12xxxxxx: Phisical unified memory segment (Unified memory)
+
+ The remote d10v board interprets addresses as:
+
+ 0x00xxxxxx: Phisical unified memory segment (Unified memory)
+ 0x01xxxxxx: Physical instruction memory segment (On-chip insn memory)
+ 0x02xxxxxx: Physical data memory segment (On-chip data memory)
+
+ Translate according to current IMAP/dmap registers */
+
+ enum {
+ targ_unified = 0x00000000,
+ targ_insn = 0x01000000,
+ targ_data = 0x02000000,
+ };
+
+ seg = (memaddr >> 24);
+ off = (memaddr & 0xffffffL);
+
+ switch (seg)
+ {
+ case 0x00: /* in logical data address segment */
+ {
+ from = "logical-data";
+ if (off <= 0x7fffL)
+ {
+ /* On chip data */
+ phys = targ_data + off;
+ if (off + nr_bytes > 0x7fffL)
+ /* don't cross VM boundary */
+ nr_bytes = 0x7fffL - off + 1;
+ to = "chip-data";
+ }
+ else if (off <= 0xbfffL)
+ {
+ short map = dmap;
+ if (map & 0x1000)
+ {
+ /* Instruction memory */
+ phys = targ_insn | ((map & 0xf) << 14) | (off & 0x3fff);
+ to = "chip-insn";
+ }
+ else
+ {
+ /* Unified memory */
+ phys = targ_unified | ((map & 0x3ff) << 14) | (off & 0x3fff);
+ to = "unified";
+ }
+ if (off + nr_bytes > 0xbfffL)
+ /* don't cross VM boundary */
+ nr_bytes = (0xbfffL - off + 1);
+ }
+ else
+ {
+ /* Logical address out side of data segments, not supported */
+ return (0);
+ }
+ break;
+ }
+
+ case 0x01: /* in logical instruction address segment */
+ {
+ short map;
+ from = "logical-insn";
+ if (off <= 0x1ffffL)
+ {
+ map = imap0;
+ }
+ else if (off <= 0x3ffffL)
+ {
+ map = imap1;
+ }
+ else
+ {
+ /* Logical address outside of IMAP[01] segment, not
+ supported */
+ return (0);
+ }
+ if ((off & 0x1ffff) + nr_bytes > 0x1ffffL)
+ {
+ /* don't cross VM boundary */
+ nr_bytes = 0x1ffffL - (off & 0x1ffffL) + 1;
+ }
+ if (map & 0x1000)
+ /* Instruction memory */
+ {
+ phys = targ_insn | off;
+ to = "chip-insn";
+ }
+ else
+ {
+ phys = ((map & 0x7fL) << 17) + (off & 0x1ffffL);
+ if (phys > 0xffffffL)
+ /* Address outside of unified address segment */
+ return (0);
+ phys |= targ_unified;
+ to = "unified";
+ }
+ break;
+ }
+
+ case 0x10: /* Physical data memory segment */
+ from = "phys-data";
+ phys = targ_data | off;
+ to = "chip-data";
+ break;
+
+ case 0x11: /* Physical instruction memory */
+ from = "phys-insn";
+ phys = targ_insn | off;
+ to = "chip-insn";
+ break;
+
+ case 0x12: /* Physical unified memory */
+ from = "phys-unified";
+ phys = targ_unified | off;
+ to = "unified";
+ break;
+
+ default:
+ return (0);
+ }
+
+
+ printf_unfiltered ("%s-xfer: 0x%08lx -> 0x%08lx imap0=%04x imap1=%04x, dmap=%04x, %s->%s, %d bytes\n",
+ (write_p ? "wr" : "rd"),
+ (long) memaddr,
+ (long) phys,
+ (int) imap0, (int) imap1, (int) dmap,
+ from, to,
+ (int) nr_bytes);
+
+ return inherited_ops->to_xfer_memory (phys, myaddr, nr_bytes, write_p, target);
+}
+
+
+void
+_initialize_remote_d10v ()
+{
+ init_remote_d10v_ops (0);
+ add_target (&remote_d10v_ops);
+}
projects / binutils-gdb.git / commitdiff