[PATCH 2.6.27-rc1-git5 9/26] mdb: add ia32.h include file

[jmerkey]

Centralized external definitions into include files and corrected 
the file to conform to Linux coding practices.  fixed word wrap
problems with patches.

Signed-off-by: Jeffrey Vernon Merkey (jmerkey@xxxxxxxxxxxxxxxxxxxxx)

--- a/debug/mdb-ia32.h	1969-12-31 17:00:00.000000000 -0700
+++ b/debug/mdb-ia32.h	2008-08-04 15:49:51.000000000 -0600
@@ -0,0 +1,173 @@
+
+/***************************************************************************
+*
+*   Copyright (c) 2008 Jeff V. Merkey  All Rights Reserved.
+*   1058 East 50 South
+*   Lindon, Utah 84042
+*   jmerkey@xxxxxxxxxxxxxxxxxxxxx
+*
+*   This program 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.
+*
+*   This program 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 are free to modify and re-distribute this program in accordance
+*   with the terms specified in the GNU Public License.  The copyright
+*   contained in this code is required to be present in any derivative
+*   works and you are required to provide the source code for this
+*   program as part of any commercial or non-commercial distribution.
+*   You are required to respect the rights of the Copyright holders
+*   named within this code.
+*
+*   jmerkey@xxxxxxxxxxxxxxxxxxxxx is the official maintainer of
+*   this code.  You are encouraged to report any bugs, problems, fixes,
+*   suggestions, and comments about this software.  
+*
+*   AUTHOR   :  Jeff V. Merkey
+*   DESCRIP  :  Merkey's NetWare Debugger
+*
+***************************************************************************/
+
+#ifndef _MDB_IA32_H
+#define _MDB_IA32_H
+
+typedef struct _StackFrame {
+   unsigned long tReserved[7];
+   unsigned long *tCR3;
+   unsigned long tEIP;
+   unsigned long tSystemFlags;
+   unsigned long tEAX;
+   unsigned long tECX;
+   unsigned long tEDX;
+   unsigned long tEBX;
+   unsigned long tESP;
+   unsigned long tEBP;
+   unsigned long tESI;
+   unsigned long tEDI;
+   unsigned short tES;
+   unsigned short Res1;
+   unsigned short tCS;
+   unsigned short Res2;
+   unsigned short tSS;
+   unsigned short Res3;
+   unsigned short tDS;
+   unsigned short Res4;
+   unsigned short tFS;
+   unsigned short Res5;
+   unsigned short tGS;
+   unsigned short Res6;
+   unsigned short tLDT;
+   unsigned short Res7;
+   unsigned long tIOMap;
+} StackFrame;
+
+//  128 bytes total size numeric register context
+
+typedef struct _NPXREG {
+  unsigned short sig0;        //  10 bytes total size this structure
+  unsigned short sig1;
+  unsigned short sig2;
+  unsigned short sig3;
+  unsigned short exponent:15;
+  unsigned short sign:1;
+} NUMERIC_REGISTER_CONTEXT;
+
+typedef struct _NPX {
+  unsigned long control;
+  unsigned long status;
+  unsigned long tag;
+  unsigned long eip;
+  unsigned long cs;
+  unsigned long dataptr;
+  unsigned long datasel;
+  NUMERIC_REGISTER_CONTEXT reg[8];    // 80 bytes
+  unsigned long pad[5];
+} NUMERIC_FRAME;
+
+//  128 bytes total size register context
+
+typedef struct _CONTEXT_FRAME {
+    unsigned short cBackLink;
+    unsigned short cTSSReserved;
+    unsigned long cESP0;
+    unsigned short cSS0;
+    unsigned short cSS0res;
+    unsigned long cESP1;
+    unsigned short cSS1;
+    unsigned short cSS1res;
+    unsigned long cESP2;
+    unsigned short cSS2;
+    unsigned short cSS2res;
+    unsigned long cCR3;
+    unsigned long cEIP;
+    unsigned long cSystemFlags;
+    unsigned long cEAX;
+    unsigned long cECX;
+    unsigned long cEDX;
+    unsigned long cEBX;
+    unsigned long cESP;
+    unsigned long cEBP;
+    unsigned long cESI;
+    unsigned long cEDI;
+    unsigned long cES;
+    unsigned long cCS;
+    unsigned long cSS;
+    unsigned long cDS;
+    unsigned long cFS;
+    unsigned long cGS;
+    unsigned long cLDT;
+    unsigned long cIOPermissMap;
+    unsigned long pad[6];
+} CONTEXT_FRAME;
+
+static inline void _cli(void)
+{
+	__asm__ __volatile__("cli" : : : "memory");
+}
+
+static inline void _sti(void)
+{
+	__asm__ __volatile__("sti" : : : "memory");
+}
+
+static inline unsigned long get_flags(void)
+{
+	unsigned long flags;
+
+	__asm__ __volatile__(
+		"pushfl ; popl %0"
+		: "=g" (flags)
+		: /* no input */
+	);
+	return flags;
+}
+
+static inline unsigned long save_flags(void)
+{
+	unsigned long flags;
+
+	__asm__ __volatile__(
+		"pushfl ; popl %0"
+		: "=g" (flags)
+		: /* no input */
+	);
+	__asm__ __volatile__("cli" : : : "memory");
+	return flags;
+}
+
+static inline void restore_flags(unsigned long flags)
+{
+	__asm__ __volatile__(
+		"pushl %0 ; popfl"
+		: 
+		:"g" (flags)
+		:"memory", "cc"
+	);
+}
+
+#endif
+
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