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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License, Version 1.0 only
      6  * (the "License").  You may not use this file except in compliance
      7  * with the License.
      8  *
      9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
     10  * or http://www.opensolaris.org/os/licensing.
     11  * See the License for the specific language governing permissions
     12  * and limitations under the License.
     13  *
     14  * When distributing Covered Code, include this CDDL HEADER in each
     15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     16  * If applicable, add the following below this CDDL HEADER, with the
     17  * fields enclosed by brackets "[]" replaced with your own identifying
     18  * information: Portions Copyright [yyyy] [name of copyright owner]
     19  *
     20  * CDDL HEADER END
     21  */
     22 /*
     23  * Copyright (c) 1991-1993,2001 by Sun Microsystems, Inc.
     24  * All rights reserved.
     25  */
     26 
     27 #ifndef _SYS_NEXUSDEBUG_H
     28 #define	_SYS_NEXUSDEBUG_H
     29 
     30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
     31 
     32 #ifdef	__cplusplus
     33 extern "C" {
     34 #endif
     35 
     36 /*
     37  * Debugging macros
     38  *
     39  * The DPRINTF macro can be used by setting the debug_print_level to the
     40  * appropriate debugging level.  The debug levels are defined in each source
     41  * file where this header file is included.  The scoping of debug_info,
     42  * and debug_print_level is to the file which included the header file.
     43  * If multiple levels need to be output, the values can be 'ored'
     44  * together into debug_print_level.  If debug_print_line's bit 1 is set, the
     45  * line number of the debugging statement is printed out. If it has
     46  * bit 2 set, the macro will drop into either the debugger or the OBP PROM.
     47  */
     48 
     49 #ifdef  DEBUG
     50 #include <sys/promif.h>
     51 
     52 extern void debug_enter(char *);
     53 
     54 static int debug_info = 1;
     55 static int debug_print_level = 0;
     56 
     57 #define	PRINT_LINE_NUMBER	0x1
     58 #define	ENTER_MON		0x2
     59 
     60 #define	_PRINTF prom_printf	/* For logging to the console */
     61 
     62 #define	DPRINTF(print_flag, args)			\
     63 	if (debug_print_level & (print_flag) && debug_info & \
     64 	    PRINT_LINE_NUMBER) \
     65 		_PRINTF("%s line %d:\n", __FILE__, __LINE__);	\
     66 	if (debug_print_level & (print_flag)) {	\
     67 		_PRINTF args;				\
     68 	if (debug_info & ENTER_MON)			\
     69 		debug_enter("");				\
     70 	}
     71 
     72 #else
     73 #define	DPRINTF(print_flag, args)
     74 #endif /* DEBUG */
     75 
     76 #ifdef	__cplusplus
     77 }
     78 #endif
     79 
     80 #endif	/* _SYS_NEXUSDEBUG_H */
     81