merge of 2cc527e6d8c8ff19dab478f7d12e58f1cfa6d6f5

     and 7b542932f3e2947183b45bdbf39d448f457da9fd

1 files changed, 109 insertions, 0 deletions

diff --git a/backends/i386_regs.c b/backends/i386_regs.c
new file mode 100644
index 00000000..f79cda74
--- /dev/null
+++ b/backends/i386_regs.c
@@ -0,0 +1,109 @@
+/* Register names and numbers for i386 DWARF.
+   Copyright (C) 2005 Red Hat, Inc.
+
+   This program is Open Source software; you can redistribute it and/or
+   modify it under the terms of the Open Software License version 1.0 as
+   published by the Open Source Initiative.
+
+   You should have received a copy of the Open Software License along
+   with this program; if not, you may obtain a copy of the Open Software
+   License version 1.0 from http://www.opensource.org/licenses/osl.php or
+   by writing the Open Source Initiative c/o Lawrence Rosen, Esq.,
+   3001 King Ranch Road, Ukiah, CA 95482.   */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <string.h>
+
+#define BACKEND i386_
+#include "libebl_CPU.h"
+
+ssize_t
+i386_register_name (Ebl *ebl __attribute__ ((unused)),
+		    int regno, char *name, size_t namelen,
+		    const char **prefix, const char **setname)
+{
+  if (name == NULL)
+    return 46;
+
+  if (regno < 0 || regno > 45 || namelen < 6)
+    return -1;
+
+  *prefix = "%";
+  if (regno < 11)
+    *setname = "integer";
+  else if (regno < 19)
+    *setname = "x87";
+  else if (regno < 29)
+    *setname = "SSE";
+  else if (regno < 37)
+    *setname = "MMX";
+  else if (regno < 40)
+    *setname = "FPU-control";
+  else
+    *setname = "segment";
+
+  switch (regno)
+    {
+      static const char baseregs[][2] =
+	{
+	  "ax", "cx", "dx", "bx", "sp", "bp", "si", "di", "ip"
+	};
+
+    case 0 ... 8:
+      name[0] = 'e';
+      name[1] = baseregs[regno][0];
+      name[2] = baseregs[regno][1];
+      namelen = 3;
+      break;
+
+    case 9:
+      return stpcpy (name, "eflags") - name;
+    case 10:
+      return stpcpy (name, "trapno") - 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:
+      return stpcpy (name, "fctrl") - name;
+    case 38:
+      return stpcpy (name, "fstat") - name;
+    case 39:
+      return stpcpy (name, "mxcsr") - 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;
+}