Source code of Windows XP (NT5)
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/*++
Copyright (C) Microsoft Corporation, 1999 - 1999
Module Name:
debug.h
Abstract:
Prototypes and definitions for debugging.
Author:
Keisuke Tsuchida (KeisukeT)
Environment:
kernel mode only
Notes:
Revision History:
--*/
#ifndef __MYDEBUG__
#define __MYDEBUG__
//
// Driver specific difinition
//
#define NAME_DRIVER "USBscan.SYs: " // Prefix of output message. (Should be driver name)
#define NAME_POOLTAG 'UITS' // Pool tag for this driver.
#define MAXNUM_POOL 100 // Maximum number of pool. (# of alloc - # of free)
#define MAX_DUMPSIZE 1024 // Maximum bytes to dump.
//
// Defines
//
#define REG_DEBUGLEVEL L"DebugTraceLevel"
#define MAX_TEMPBUF 256
// Bit mask for trace level and flags
#define BITMASK_TRACE_LEVEL 0x0000000f
#define BITMASK_TRACE_FLAG 0x00000ff0
#define BITMASK_DEBUG_FLAG 0x0000f000
// Basic trace level
#define NO_TRACE 0 // Shows nothing.
#define MIN_TRACE 1 // Shows only error or warning.
#define MAX_TRACE 2 // Shows progress and status.
#define ULTRA_TRACE 3 // Shows progress and status in retail.
#define NEVER_TRACE 4 // Never show this unless specific bit is set.
// Trace flag to enable specific message spew. (1=on)
#define TRACE_FLAG_PROC 0x10 // Show message when entering process.(1=on)
#define TRACE_FLAG_RET 0x20 // Show message when leaving process.(1=on)
#define TRACE_FLAG_DUMP_READ 0x40 // Show user buffer when read.
#define TRACE_FLAG_DUMP_WRITE 0x80 // Show user buffer when write.
// Conbination of trace level and flag.
#define TRACE_PROC_ENTER ULTRA_TRACE | TRACE_FLAG_PROC // Entering procedure.
#define TRACE_PROC_LEAVE ULTRA_TRACE | TRACE_FLAG_RET // Leaving procedure.
#define TRACE_CRITICAL MIN_TRACE // Critical error. Spew always.
#define TRACE_ERROR MIN_TRACE // Error.
#define TRACE_WARNING MIN_TRACE // Possible wrong behavior.
//#define TRACE_DUMP_DATA NEVER_TRACE | TRACE_FLAG_DUMP // Dump transaction data.
#define TRACE_DEVICE_DATA MAX_TRACE // Show device data.
#define TRACE_STATUS MAX_TRACE // Show status.
// Debug flag to enable/disable DEBUG_BREAKPOINT()
#define DEBUG_FLAG_DISABLE 0x1000 // Disable DEBUG_BREAK. (1=disable)
#define DEBUG_PROC_BREAK 0x2000 // Stop at the beginning of each procedure.
//
// Macro
//
#if DBG
//
// Macro for debug output
//
// Note: If trace level is higher than DebugTraceLevel or specific bit is set,
// debug message will be shown.
//
extern ULONG DebugTraceLevel;
#define DebugTrace(_t_, _x_) { \
if ( ((DebugTraceLevel & BITMASK_TRACE_LEVEL) >= (_t_ & BITMASK_TRACE_LEVEL )) || \
(DebugTraceLevel & BITMASK_TRACE_FLAG & (_t_)) ) { \
DbgPrint(NAME_DRIVER); \
DbgPrint _x_ ; \
} \
if( (DebugTraceLevel & DEBUG_PROC_BREAK & (_t_)) && \
(DebugTraceLevel & TRACE_FLAG_PROC) ) { \
DEBUG_BREAKPOINT(); \
} \
}
//
// Macro for BreakPoint
//
#define DEBUG_BREAKPOINT() { \
if (DebugTraceLevel & DEBUG_FLAG_DISABLE) { \
DbgPrint(NAME_DRIVER); \
DbgPrint("*** Hit DEBUG_BREAKPOINT ***\n"); \
} else { \
DbgBreakPoint(); \
} \
}
#else // DBG
#define DEBUG_BREAKPOINT()
#define DebugTrace(_t_, _x_)
#endif // DBG
//
// Prototypes
//
PVOID
MyAllocatePool(
IN POOL_TYPE PoolType,
IN ULONG ulNumberOfBytes
);
VOID
MyFreePool(
IN PVOID pvAddress
);
VOID
MyDebugInit(
IN PUNICODE_STRING pRegistryPath
);
VOID
MyDumpMemory(
PUCHAR pDumpBuffer,
ULONG dwSize,
BOOLEAN bRead
);
#endif // __MYDEBUG__