1 files changed, 149 insertions, 0 deletions
diff --git a/src/backends/i386_regs.c b/src/backends/i386_regs.c
new file mode 100644
index 00000000..5cf0d810
--- /dev/null
+++ b/src/backends/i386_regs.c
@@ -0,0 +1,149 @@
+/* Register names and numbers for i386 DWARF.
+   Copyright (C) 2005, 2006, 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 i386_
+#include "libebl_CPU.h"
+
+ssize_t
+i386_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 46;
+
+  if (regno < 0 || regno > 45 || namelen < 6)
+    return -1;
+
+  *prefix = "%";
+  *bits = 32;
+  *type = DW_ATE_unsigned;
+  if (regno < 11)
+    {
+      *setname = "integer";
+      if (regno < 9)
+	*type = DW_ATE_signed;
+    }
+  else if (regno < 19)
+    {
+      *setname = "x87";
+      *type = DW_ATE_float;
+      *bits = 80;
+    }
+  else if (regno < 29)
+    {
+      *setname = "SSE";
+      *bits = 128;
+    }
+  else if (regno < 37)
+    {
+      *setname = "MMX";
+      *bits = 64;
+    }
+  else if (regno < 40)
+    *setname = "FPU-control";
+  else
+    {
+      *setname = "segment";
+      *bits = 16;
+    }
+
+  switch (regno)
+    {
+      static const char baseregs[][2] =
+	{
+	  "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip"
+	};
+
+    case 4:
+    case 5:
+    case 8:
+      *type = DW_ATE_address;
+    case 0 ... 3:
+    case 6 ... 7:
+      name[0] = 'e';
+      name[1] = baseregs[regno][0];
+      name[2] = baseregs[regno][1];
+      namelen = 3;
+      break;
+
+    case 9:
+      return stpcpy (name, "eflags") + 1 - name;
+    case 10:
+      return stpcpy (name, "trapno") + 1 - name;
+
+    case 11 ... 18:
+      name[0] = 's';
+      name[1] = 't';
+      name[2] = regno - 11 + '0';
+      namelen = 3;
+      break;
+
+    case 21 ... 28:
+      name[0] = 'x';
+      name[1] = 'm';
+      name[2] = 'm';
+      name[3] = regno - 21 + '0';
+      namelen = 4;
+      break;
+
+    case 29 ... 36:
+      name[0] = 'm';
+      name[1] = 'm';
+      name[2] = regno - 29 + '0';
+      namelen = 3;
+      break;
+
+    case 37:
+      *bits = 16;
+      return stpcpy (name, "fctrl") + 1 - name;
+    case 38:
+      *bits = 16;
+      return stpcpy (name, "fstat") + 1 - name;
+    case 39:
+      return stpcpy (name, "mxcsr") + 1 - name;
+
+    case 40 ... 45:
+      name[0] = "ecsdfg"[regno - 40];
+      name[1] = 's';
+      namelen = 2;
+      break;
+
+    default:
+      *setname = NULL;
+      return 0;
+    }
+
+  name[namelen++] = '\0';
+  return namelen;
+}