1 files changed, 102 insertions, 0 deletions
diff --git a/src/backends/aarch64_regs.c b/src/backends/aarch64_regs.c
new file mode 100644
index 00000000..7a8a6780
--- /dev/null
+++ b/src/backends/aarch64_regs.c
@@ -0,0 +1,102 @@
+/* Register names and numbers for AArch64 DWARF.
+   Copyright (C) 2013, 2014 Red Hat, Inc.
+   This file is part of elfutils.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of either
+
+     * the GNU Lesser General Public License as published by the Free
+       Software Foundation; either version 3 of the License, or (at
+       your option) any later version
+
+   or
+
+     * the GNU General Public License as published by the Free
+       Software Foundation; either version 2 of the License, or (at
+       your option) any later version
+
+   or both in parallel, as here.
+
+   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 copies of the GNU General Public License and
+   the GNU Lesser General Public License along with this program.  If
+   not, see <http://www.gnu.org/licenses/>.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h>
+#include <dwarf.h>
+#include <stdarg.h>
+
+#define BACKEND aarch64_
+#include "libebl_CPU.h"
+
+ssize_t
+aarch64_register_info (Ebl *ebl __attribute__ ((unused)),
+		       int regno, char *name, size_t namelen,
+		       const char **prefix, const char **setnamep,
+		       int *bits, int *typep)
+{
+  if (name == NULL)
+    return 128;
+
+  __attribute__ ((format (printf, 3, 4)))
+  ssize_t
+  regtype (const char *setname, int type, const char *fmt, ...)
+  {
+    *setnamep = setname;
+    *typep = type;
+
+    va_list ap;
+    va_start (ap, fmt);
+    int s = vsnprintf (name, namelen, fmt, ap);
+    va_end(ap);
+
+    if (s < 0 || (unsigned) s >= namelen)
+      return -1;
+    return s + 1;
+  }
+
+  *prefix = "";
+  *bits = 64;
+
+  switch (regno)
+    {
+    case 0 ... 30:
+      return regtype ("integer", DW_ATE_signed, "x%d", regno);
+
+    case 31:
+      return regtype ("integer", DW_ATE_address, "sp");
+
+    case 32:
+      return 0;
+
+    case 33:
+      return regtype ("integer", DW_ATE_address, "elr");
+
+    case 34 ... 63:
+      return 0;
+
+    case 64 ... 95:
+      /* FP/SIMD register file supports a variety of data types--it
+	 can be thought of as a register holding a single integer or
+	 floating-point value, or a vector of 8-, 16-, 32- or 64-bit
+	 integers.  128-bit quad-word is the only singular value that
+	 covers the whole register, so mark the register thus.  */
+      *bits = 128;
+      return regtype ("FP/SIMD", DW_ATE_unsigned, "v%d", regno - 64);
+
+    case 96 ... 127:
+      return 0;
+
+    default:
+      return -1;
+    }
+}