Nominal ARM support.

1 files changed, 98 insertions, 0 deletions

diff --git a/backends/arm_regs.c b/backends/arm_regs.c
new file mode 100644
index 00000000..b7351ce2
--- /dev/null
+++ b/backends/arm_regs.c
@@ -0,0 +1,98 @@
+/* Register names and numbers for ARM DWARF.
+   Copyright (C) 2009 Red Hat, Inc.
+   This file is part of Red Hat elfutils.
+
+   Red Hat elfutils 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; version 2 of the License.
+
+   Red Hat elfutils 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 Red Hat elfutils; if not, write to the Free Software Foundation,
+   Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
+
+   Red Hat elfutils is an included package of the Open Invention Network.
+   An included package of the Open Invention Network is a package for which
+   Open Invention Network licensees cross-license their patents.  No patent
+   license is granted, either expressly or impliedly, by designation as an
+   included package.  Should you wish to participate in the Open Invention
+   Network licensing program, please visit www.openinventionnetwork.com
+   <http://www.openinventionnetwork.com>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+#include <dwarf.h>
+
+#define BACKEND arm_
+#include "libebl_CPU.h"
+
+ssize_t
+arm_register_info (Ebl *ebl __attribute__ ((unused)),
+		   int regno, char *name, size_t namelen,
+		   const char **prefix, const char **setname,
+		   int *bits, int *type)
+{
+  if (name == NULL)
+    return 129;
+
+  if (regno < 0 || regno > 128 || namelen < 5)
+    return -1;
+
+  *prefix = NULL;
+  *bits = 32;
+  *type = DW_ATE_signed;
+  *setname = "integer";
+
+  switch (regno)
+    {
+    case 0 ... 9:
+      name[0] = 'r';
+      name[1] = regno + '0';
+      namelen = 2;
+      break;
+
+    case 10 ... 12:
+      name[0] = 'r';
+      name[1] = '1';
+      name[2] = regno % 10 + '0';
+      namelen = 3;
+      break;
+
+    case 13 ... 15:
+      *type = DW_ATE_address;
+      name[0] = "slp"[regno - 13];
+      name[1] = "prc"[regno - 13];
+      namelen = 2;
+      break;
+
+    case 16 + 0 ... 16 + 7:
+      regno += 96 - 16;
+      /* Fall through.  */
+    case 96 + 0 ... 96 + 7:
+      *setname = "FPA";
+      *type = DW_ATE_float;
+      *bits = 96;
+      name[0] = 'f';
+      name[1] = regno - 96 + '0';
+      namelen = 2;
+      break;
+
+    case 128:
+      *type = DW_ATE_unsigned;
+      return stpcpy (name, "spsr") + 1 - name;
+
+    default:
+      *setname = NULL;
+      return 0;
+    }
+
+  name[namelen++] = '\0';
+  return namelen;
+}