1 files changed, 63 insertions, 0 deletions
diff --git a/backends/x86_64_cfi.c b/backends/x86_64_cfi.c
new file mode 100644
index 00000000..6db8ac44
--- /dev/null
+++ b/backends/x86_64_cfi.c
@@ -0,0 +1,63 @@
+/* x86-64 ABI-specified defaults for DWARF CFI.
+   Copyright (C) 2009 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 <dwarf.h>
+
+#define BACKEND x86_64_
+#include "libebl_CPU.h"
+
+int
+x86_64_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
+{
+  static const uint8_t abi_cfi[] =
+    {
+      /* Call-saved regs.  */
+      DW_CFA_same_value, ULEB128_7 (0), /* %rbx */
+      DW_CFA_same_value, ULEB128_7 (6), /* %rbp */
+      DW_CFA_same_value, ULEB128_7 (12), /* %r12 */
+      DW_CFA_same_value, ULEB128_7 (13), /* %r13 */
+      DW_CFA_same_value, ULEB128_7 (14), /* %r14 */
+      DW_CFA_same_value, ULEB128_7 (15), /* %r15 */
+      DW_CFA_same_value, ULEB128_7 (16), /* %r16 */
+
+      /* The CFA is the SP.  */
+      DW_CFA_val_offset, ULEB128_7 (7), ULEB128_7 (0),
+    };
+
+  abi_info->initial_instructions = abi_cfi;
+  abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
+  abi_info->data_alignment_factor = 8;
+
+  abi_info->return_address_register = 16; /* %rip */
+
+  return 0;
+}