1 files changed, 125 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/common/config/aarch64/aarch64-common.c b/gcc-4.9/gcc/common/config/aarch64/aarch64-common.c
new file mode 100644
index 000000000..e44b40a17
--- /dev/null
+++ b/gcc-4.9/gcc/common/config/aarch64/aarch64-common.c
@@ -0,0 +1,125 @@
+/* Common hooks for AArch64.
+   Copyright (C) 2012-2014 Free Software Foundation, Inc.
+   Contributed by ARM Ltd.
+
+   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"
+
+#ifdef  TARGET_BIG_ENDIAN_DEFAULT
+#undef  TARGET_DEFAULT_TARGET_FLAGS
+#define TARGET_DEFAULT_TARGET_FLAGS (MASK_BIG_END)
+#endif
+
+#undef  TARGET_HANDLE_OPTION
+#define TARGET_HANDLE_OPTION aarch64_handle_option
+
+#undef	TARGET_OPTION_OPTIMIZATION_TABLE
+#define TARGET_OPTION_OPTIMIZATION_TABLE aarch_option_optimization_table
+
+/* Set default optimization options.  */
+static const struct default_options aarch_option_optimization_table[] =
+  {
+    /* Enable section anchors by default at -O1 or higher.  */
+    { OPT_LEVELS_1_PLUS, OPT_fsection_anchors, NULL, 1 },
+    /* Enable redundant extension instructions removal at -O2 and higher.  */
+    { OPT_LEVELS_2_PLUS, OPT_free, NULL, 1 },
+    { OPT_LEVELS_NONE, 0, NULL, 0 }
+  };
+
+/* Implement TARGET_HANDLE_OPTION.
+   This function handles the target specific options for CPU/target selection.
+
+   -mcpu=CPU is shorthand for -march=ARCH_FOR_CPU, -mtune=CPU.
+   If either of -march or -mtune is given, they override their
+   respective component of -mcpu.  This logic is implemented
+   in config/aarch64/aarch64.c:aarch64_override_options.  */
+
+static bool
+aarch64_handle_option (struct gcc_options *opts,
+		       struct gcc_options *opts_set ATTRIBUTE_UNUSED,
+		       const struct cl_decoded_option *decoded,
+		       location_t loc ATTRIBUTE_UNUSED)
+{
+  size_t code = decoded->opt_index;
+  const char *arg = decoded->arg;
+
+  switch (code)
+    {
+    case OPT_march_:
+      opts->x_aarch64_arch_string = arg;
+      return true;
+
+    case OPT_mcpu_:
+      opts->x_aarch64_cpu_string = arg;
+      return true;
+
+    case OPT_mtune_:
+      opts->x_aarch64_tune_string = arg;
+      return true;
+
+    default:
+      return true;
+    }
+}
+
+struct gcc_targetm_common targetm_common = TARGETM_COMMON_INITIALIZER;
+
+#define AARCH64_CPU_NAME_LENGTH 20
+
+/* Truncate NAME at the first '.' character seen, or return
+   NAME unmodified.  */
+
+const char *
+aarch64_rewrite_selected_cpu (const char *name)
+{
+  static char output_buf[AARCH64_CPU_NAME_LENGTH + 1] = {0};
+  char *arg_pos;
+
+  strncpy (output_buf, name, AARCH64_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 commend 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 *
+aarch64_rewrite_mcpu (int argc, const char **argv)
+{
+  gcc_assert (argc);
+  return aarch64_rewrite_selected_cpu (argv[argc - 1]);
+}
+
+#undef AARCH64_CPU_NAME_LENGTH
+