config.gcc (avr-*-rtems*, avr-*-*): Set extra_gcc_objs and extra_objs.

	* config.gcc (avr-*-rtems*, avr-*-*): Set extra_gcc_objs and
	extra_objs.
	* config/avr/avr.c (avr_current_device): New variable.
	(avr_arch_types, avr_mcu_types): Move to avr-deveces.c.
	(avr_arch, mcu_type_s): Move to avr.h.
	* config/avr/avr.h (base_arch_s). Add reserved2, arch_name and
	default_data_section_start fields.
	(avr_arch): Moved from avr.c.
	(mcu_type_s): Moved from avr.c. Add short_sp, data_section_start and
	library_name fields.
	(avr_current_device, avr_mcu_types, avr_arch_types,
	avr_device_to_arch, avr_device_to_data_start,
	avr_device_to_startfiles, avr_device_to_devicelib): Declare.
	(EXTRA_SPEC_FUNCTIONS): Define.
	(LINK_SPEC): Remove device name to '-m ...' and '-Tdata ...' linker
	options mapping. Use device_to_arch and device_to_data_start insted.
	(STARTFILE_SPEC): Use device_to_startfile instead of crt_binutils.
	(CRT_BINUTILS_SPECS, EXTRA_SPECS): Remove.
	* config/avr/t-avr (driver-avr.o, avr-devices.o): New rules.
	* config/avr/driver-avr.c: New file.
	* config/avr/avr-devices.c: New file.

From-SVN: r148868

1 files changed, 115 insertions, 0 deletions

diff --git a/gcc/config/avr/driver-avr.c b/gcc/config/avr/driver-avr.c
new file mode 100755
index 0000000..218c406
--- /dev/null
+++ b/gcc/config/avr/driver-avr.c
@@ -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);
+}
+