1 files changed, 77 insertions, 0 deletions
diff --git a/src/backends/ppc_cfi.c b/src/backends/ppc_cfi.c
new file mode 100644
index 00000000..55169aef
--- /dev/null
+++ b/src/backends/ppc_cfi.c
@@ -0,0 +1,77 @@
+/* ppc ABI-specified defaults for DWARF CFI.
+   Copyright (C) 2012, 2013 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 ppc_
+#include "libebl_CPU.h"
+
+int
+ppc_abi_cfi (Ebl *ebl __attribute__ ((unused)), Dwarf_CIE *abi_info)
+{
+  static const uint8_t abi_cfi[] =
+    {
+      /* This instruction is provided in every CIE.  It is not repeated here:
+	 DW_CFA_def_cfa, ULEB128_7 (1), ULEB128_7 (0)  */
+      /* r1 is assumed to be restored from cfa adress,
+	 r1 acts as a stack frame pointer.  */
+      DW_CFA_val_offset, ULEB128_7 (1), ULEB128_7 (0),
+      /* lr is not callee-saved but it needs to be preserved as it is pre-set
+	 by the caller.  */
+      DW_CFA_same_value, ULEB128_7 (65), /* lr */
+
+      /* Callee-saved regs.  */
+#define SV(n) DW_CFA_same_value, ULEB128_7 (n)
+      SV (2),			/* r2 is TOC pointer.  */
+      SV (13),			/* Reserved as system thread id (is it for CFI?).  */
+      /* r14-r31 are non-volatile registers.  */
+      SV (14), SV (15), SV (16), SV (17), SV (18), SV (19), SV (20), SV (21),
+      SV (22), SV (23), SV (24), SV (25), SV (26), SV (27), SV (28), SV (29),
+      SV (30), SV (31)
+      /* VMX registers v20-v31 and vrsave are non-volatile but they are
+	 assigned DWARF registers 1144-1156 (v20-v31) which is outside of the
+	 CFI supported range.  */
+#undef SV
+    };
+
+  abi_info->initial_instructions = abi_cfi;
+  abi_info->initial_instructions_end = &abi_cfi[sizeof abi_cfi];
+  abi_info->data_alignment_factor = ebl->class == ELFCLASS64 ? 8 : 4;
+
+  abi_info->return_address_register = 65;
+
+  return 0;
+}
+
+__typeof (ppc_abi_cfi)
+     ppc64_abi_cfi
+     __attribute__ ((alias ("ppc_abi_cfi")));