--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/gcc/config/avr/driver-avr.c	Fri Feb 12 23:39:51 2010 +0900
@@ -0,0 +1,115 @@
+/* Subroutines for the gcc driver.
+   Copyright (C) 2009 Free Software Foundation, Inc.
+   Contributed by Anatoly Sokolov <aesok@post.ru>
+
+This file is part of GCC.
+
+GCC 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 3, or (at your option)
+any later version.
+
+GCC 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 GCC; see the file COPYING3.  If not see
+<http://www.gnu.org/licenses/>.  */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include <stdlib.h>
+
+/* Current architecture.  */
+const struct base_arch_s *avr_current_arch = NULL;
+
+/* Current device.  */
+const struct mcu_type_s *avr_current_device = NULL;
+
+/* Initialize avr_current_arch and avr_current_device variables.  */
+
+static void
+avr_set_current_device (const char *name)
+{
+ 
+ if (NULL != avr_current_arch)
+   return;
+ 
+  for (avr_current_device = avr_mcu_types; avr_current_device->name;
+       avr_current_device++)
+    {
+      if (strcmp (avr_current_device->name, name) == 0)
+        break;
+    }
+
+  avr_current_arch = &avr_arch_types[avr_current_device->arch];
+}
+
+/* Returns command line parameters that describe the device architecture.  */
+
+const char *
+avr_device_to_arch (int argc, const char **argv)
+{
+  if (0 == argc)
+    return;
+
+  avr_set_current_device (argv[0]);
+
+  return concat ("-m ", avr_current_arch->arch_name, NULL);
+}
+
+/* Returns command line parameters that describe start of date section.  */
+
+const char *
+avr_device_to_data_start (int argc, const char **argv)
+{
+  unsigned long data_section_start;
+  char data_section_start_str[16];
+
+  if (0 == argc)
+    return;  
+
+  avr_set_current_device (argv[0]);
+  
+  if (avr_current_device->data_section_start 
+      == avr_current_arch->default_data_section_start)
+    return NULL;
+    
+  data_section_start = 0x800000 + avr_current_device->data_section_start;
+  
+  snprintf (data_section_start_str, sizeof(data_section_start_str) - 1,
+            "0x%lX", data_section_start);
+  
+  return concat ("-Tdata ", data_section_start_str, NULL);    
+}
+
+/* Returns command line parameters that describe the device startfile.  */
+
+const char *
+avr_device_to_startfiles (int argc, const char **argv)
+{
+  if (0 == argc)
+    return;
+
+  avr_set_current_device (argv[0]);
+
+  return concat ("crt", avr_current_device->library_name, ".o%s", NULL);
+}
+
+/* Returns command line parameters that describe the device library.  */
+
+const char *
+avr_device_to_devicelib (int argc, const char **argv)
+{
+  if (0 == argc)
+    return;
+
+  avr_set_current_device (argv[0]);
+
+  return concat ("-l", avr_current_device->library_name, NULL);
+}
+