2007-04-26 Roland McGrath <roland@redhat.com>

	* alpha_regs.c: New file.
	* Makefile.am (alpha_SRCS): Add it.
	* alpha_init.c (alpha_init): Initialize register_info hook.

1 files changed, 165 insertions, 0 deletions

diff --git a/backends/alpha_regs.c b/backends/alpha_regs.c
new file mode 100644
index 00000000..2bc7d8fe
--- /dev/null
+++ b/backends/alpha_regs.c
@@ -0,0 +1,165 @@
+/* Register names and numbers for Alpha DWARF.
+   Copyright (C) 2007 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 alpha_
+#include "libebl_CPU.h"
+
+ssize_t
+alpha_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 67;
+
+  if (regno < 0 || regno > 66 || namelen < 7)
+    return -1;
+
+  *prefix = "$";
+
+  *bits = 64;
+  *type = DW_ATE_signed;
+  *setname = "integer";
+  if (regno >= 32 && regno < 64)
+    {
+      *setname = "FPU";
+      *type = DW_ATE_float;
+    }
+
+  switch (regno)
+    {
+    case 0:
+      name[0] = 'v';
+      name[1] = '0';
+      namelen = 2;
+      break;
+
+    case 1 ... 8:
+      name[0] = 't';
+      name[1] = regno - 1 + '0';
+      namelen = 2;
+      break;
+
+    case 9 ... 14:
+      name[0] = 's';
+      name[1] = regno - 9 + '0';
+      namelen = 2;
+      break;
+
+    case 15:
+      *type = DW_ATE_address;
+      return stpcpy (name, "fp") + 1 - name;
+
+    case 16 ... 21:
+      name[0] = 'a';
+      name[1] = regno - 16 + '0';
+      namelen = 2;
+      break;
+
+    case 22 ... 23:
+      name[0] = 't';
+      name[1] = regno - 22 + '8';
+      namelen = 2;
+      break;
+
+    case 24 ... 25:
+      name[0] = 't';
+      name[1] = '1';
+      name[2] = regno - 24 + '0';
+      namelen = 3;
+      break;
+
+    case 26:
+      *type = DW_ATE_address;
+      return stpcpy (name, "ra") + 1 - name;
+
+    case 27:
+      return stpcpy (name, "t12") + 1 - name;
+
+    case 28:
+      return stpcpy (name, "at") + 1 - name;
+
+    case 29:
+      *type = DW_ATE_address;
+      return stpcpy (name, "gp") + 1 - name;
+
+    case 30:
+      *type = DW_ATE_address;
+      return stpcpy (name, "sp") + 1 - name;
+
+    case 31:
+      return stpcpy (name, "zero") + 1 - name;
+
+    case 32 ... 32 + 9:
+      name[0] = 'f';
+      name[1] = regno - 32 + '0';
+      namelen = 2;
+      break;
+
+    case 32 + 10 ... 32 + 19:
+      name[0] = 'f';
+      name[1] = '1';
+      name[2] = regno - 32 - 10 + '0';
+      namelen = 3;
+      break;
+
+    case 32 + 20 ... 32 + 29:
+      name[0] = 'f';
+      name[1] = '2';
+      name[2] = regno - 32 - 20 + '0';
+      namelen = 3;
+      break;
+
+    case 32 + 30:
+      return stpcpy (name, "f30") + 1 - name;
+
+    case 32 + 31:
+      *type = DW_ATE_unsigned;
+      return stpcpy (name, "fpcr") + 1 - name;
+
+    case 64:
+      *type = DW_ATE_address;
+      return stpcpy (name, "pc") + 1 - name;
+
+    case 66:
+      *type = DW_ATE_address;
+      return stpcpy (name, "unique") + 1 - name;
+
+    default:
+      *setname = NULL;
+      return 0;
+    }
+
+  name[namelen++] = '\0';
+  return namelen;
+}