1 files changed, 112 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/common/config/arm/arm-common.c b/gcc-4.9/gcc/common/config/arm/arm-common.c
new file mode 100644
index 000000000..205d82ab0
--- /dev/null
+++ b/gcc-4.9/gcc/common/config/arm/arm-common.c
@@ -0,0 +1,112 @@
+/* Common hooks for ARM.
+   Copyright (C) 1991-2014 Free Software Foundation, Inc.
+
+   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 "tm_p.h"
+#include "common/common-target.h"
+#include "common/common-target-def.h"
+#include "opts.h"
+#include "flags.h"
+
+/* Set default optimization options.  */
+static const struct default_options arm_option_optimization_table[] =
+  {
+    /* Enable section anchors by default at -O1 or higher.  */
+    { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 },
+    { OPT_LEVELS_1_PLUS, OPT_fomit_frame_pointer, NULL, 1 },
+    { OPT_LEVELS_1_PLUS, OPT_fsched_pressure, NULL, 1 },
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
+  };
+
+/* Implement TARGET_EXCEPT_UNWIND_INFO.  */
+
+enum unwind_info_type
+arm_except_unwind_info (struct gcc_options *opts)
+{
+  /* Honor the --enable-sjlj-exceptions configure switch.  */
+#ifdef CONFIG_SJLJ_EXCEPTIONS
+  if (CONFIG_SJLJ_EXCEPTIONS)
+    return UI_SJLJ;
+#endif
+
+  /* If not using ARM EABI unwind tables... */
+  if (ARM_UNWIND_INFO)
+    {
+      /* For simplicity elsewhere in this file, indicate that all unwind
+	 info is disabled if we're not emitting unwind tables.  */
+      if (!opts->x_flag_exceptions && !opts->x_flag_unwind_tables)
+	return UI_NONE;
+      else
+	return UI_TARGET;
+    }
+
+  /* ... we use sjlj exceptions for backwards compatibility.  */
+  return UI_SJLJ;
+}
+
+#define ARM_CPU_NAME_LENGTH 20
+
+/* Truncate NAME at the first '.' character seen, or return
+   NAME unmodified.  */
+
+const char *
+arm_rewrite_selected_cpu (const char *name)
+{
+  static char output_buf[ARM_CPU_NAME_LENGTH + 1] = {0};
+  char *arg_pos;
+
+  strncpy (output_buf, name, ARM_CPU_NAME_LENGTH);
+  arg_pos = strchr (output_buf, '.');
+
+  /* If we found a '.' truncate the entry at that point.  */
+  if (arg_pos)
+    *arg_pos = '\0';
+
+  return output_buf;
+}
+
+/* Called by the driver to rewrite a name passed to the -mcpu
+   argument in preparation to be passed to the assembler.  The
+   names passed from the command line will be in ARGV, we want
+   to use the right-most argument, which should be in
+   ARGV[ARGC - 1].  ARGC should always be greater than 0.  */
+
+const char *
+arm_rewrite_mcpu (int argc, const char **argv)
+{
+  gcc_assert (argc);
+  return arm_rewrite_selected_cpu (argv[argc - 1]);
+}
+
+#undef ARM_CPU_NAME_LENGTH
+
+
+#undef  TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS (TARGET_DEFAULT | MASK_SCHED_PROLOG)
+
+#undef  TARGET_OPTION_OPTIMIZATION_TABLE
+#define TARGET_OPTION_OPTIMIZATION_TABLE arm_option_optimization_table
+
+#undef TARGET_EXCEPT_UNWIND_INFO
+#define TARGET_EXCEPT_UNWIND_INFO  arm_except_unwind_info
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;