1 files changed, 147 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/gdbserver/regcache.c b/contrib/gdb/gdb/gdbserver/regcache.c
new file mode 100644
index 0000000..bec20bb
--- /dev/null
+++ b/contrib/gdb/gdb/gdbserver/regcache.c
@@ -0,0 +1,147 @@
+/* Register support routines for the remote server for GDB.
+   Copyright 2001, 2002
+   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 "server.h"
+#include "regdef.h"
+
+#include <stdlib.h>
+#include <string.h>
+
+static char *registers;
+static int register_bytes;
+
+static struct reg *reg_defs;
+static int num_registers;
+
+const char **gdbserver_expedite_regs;
+
+int
+registers_length (void)
+{
+  return 2 * register_bytes;
+}
+
+void
+set_register_cache (struct reg *regs, int n)
+{
+  int offset, i;
+  
+  reg_defs = regs;
+  num_registers = n;
+
+  offset = 0;
+  for (i = 0; i < n; i++)
+    {
+      regs[i].offset = offset;
+      offset += regs[i].size;
+    }
+
+  register_bytes = offset / 8;
+  registers = malloc (offset / 8);
+  if (!registers)
+    fatal ("Could not allocate register cache.");
+}
+
+void
+registers_to_string (char *buf)
+{
+  convert_int_to_ascii (registers, buf, register_bytes);
+}
+
+void
+registers_from_string (char *buf)
+{
+  int len = strlen (buf);
+
+  if (len != register_bytes * 2)
+    {
+      warning ("Wrong sized register packet (expected %d bytes, got %d)", 2*register_bytes, len);
+      if (len > register_bytes * 2)
+	len = register_bytes * 2;
+    }
+  convert_ascii_to_int (buf, registers, len / 2);
+}
+
+struct reg *
+find_register_by_name (const char *name)
+{
+  int i;
+
+  for (i = 0; i < num_registers; i++)
+    if (!strcmp (name, reg_defs[i].name))
+      return &reg_defs[i];
+  fatal ("Unknown register %s requested", name);
+  return 0;
+}
+
+int
+find_regno (const char *name)
+{
+  int i;
+
+  for (i = 0; i < num_registers; i++)
+    if (!strcmp (name, reg_defs[i].name))
+      return i;
+  fatal ("Unknown register %s requested", name);
+  return -1;
+}
+
+struct reg *
+find_register_by_number (int n)
+{
+  return &reg_defs[n];
+}
+
+int
+register_size (int n)
+{
+  return reg_defs[n].size / 8;
+}
+
+char *
+register_data (int n)
+{
+  return registers + (reg_defs[n].offset / 8);
+}
+
+void
+supply_register (int n, const char *buf)
+{
+  memcpy (register_data (n), buf, register_size (n));
+}
+
+void
+supply_register_by_name (const char *name, const char *buf)
+{
+  supply_register (find_regno (name), buf);
+}
+
+void
+collect_register (int n, char *buf)
+{
+  memcpy (buf, register_data (n), register_size (n));
+}
+
+void
+collect_register_by_name (const char *name, char *buf)
+{
+  collect_register (find_regno (name), buf);
+}