root/drivers/char/ftape/tracing.h

/* */

INCLUDED FROM

DEFINITIONS

1. trace_dummy

   1 #ifndef _TRACING_H
   2 #define _TRACING_H
   3 
   4 /*
   5  * Copyright (C) 1994-1995 Bas Laarhoven.
   6 
   7  This program is free software; you can redistribute it and/or modify
   8  it under the terms of the GNU General Public License as published by
   9  the Free Software Foundation; either version 2, or (at your option)
  10  any later version.
  11 
  12  This program is distributed in the hope that it will be useful,
  13  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  GNU General Public License for more details.
  16 
  17  You should have received a copy of the GNU General Public License
  18  along with this program; see the file COPYING.  If not, write to
  19  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
  20 
  21  *
  22  $Source: /home/bas/distr/ftape-2.03b/RCS/tracing.h,v $
  23  $Author: bas $
  24  *
  25  $Revision: 1.10 $
  26  $Date: 1995/04/22 07:30:15 $
  27  $State: Beta $
  28  *
  29  *      This file contains definitions that eases the debugging
  30  *      of the QIC-40/80 floppy-tape driver for Linux.
  31  */
  32 
  33 #include <linux/kernel.h>
  34 
  35 #ifdef NO_TRACE_AT_ALL
  36 static inline void trace_dummy(void)
     /*  */
  37 {
  38 }
  39 
  40 #define TRACE_FUN( level, name) int _trace_dummy
  41 #define TRACE_EXIT              _trace_dummy= 0
  42 #define TRACE_(l,m)             trace_dummy()
  43 #define TRACE(l,m)              trace_dummy()
  44 #define TRACEi(l,m,i)           trace_dummy()
  45 #define TRACElx(l,m,i)          trace_dummy()
  46 #define TRACEx1(l,m,a)          trace_dummy()
  47 #define TRACEx2(l,m,a,b)        trace_dummy()
  48 #define TRACEx3(l,m,a,b,c)      trace_dummy()
  49 #define TRACEx4(l,m,a,b,c,d)    trace_dummy()
  50 #define TRACEx5(l,m,a,b,c,d,e)  trace_dummy()
  51 #define TRACEx6(l,m,a,b,c,d,e,f)  trace_dummy()
  52 #else
  53 #ifdef NO_TRACE
  54 #define TOP_LEVEL 2
  55 #else
  56 #define TOP_LEVEL 10
  57 #endif
  58 
  59 #define TRACE_FUN( level, name) \
  60   char _trace_fun[] = name; \
  61   int _function_nest_level = trace_call( level, __FILE__, _trace_fun); \
  62   int _tracing = level
  63 
  64 #define TRACE_EXIT \
  65   function_nest_level = _function_nest_level; \
  66   trace_exit( _tracing, __FILE__, _trace_fun)
  67 
  68 #define TRACE_(l,m) \
  69 { \
  70   if (tracing >= (l) && (l) <= TOP_LEVEL) { \
  71     trace_log( __FILE__, _trace_fun); \
  72     m; \
  73   } \
  74 }
  75 #define TRACE(l,m) TRACE_(l,printk(m".\n"))
  76 #define TRACEi(l,m,i) TRACE_(l,printk(m" %d.\n",i))
  77 #define TRACElx(l,m,i) TRACE_(l,printk(m" 0x%08lx.\n",i))
  78 #define TRACEx1(l,m,a) TRACE_(l,printk(m".\n",a))
  79 #define TRACEx2(l,m,a,b) TRACE_(l,printk(m".\n",a,b))
  80 #define TRACEx3(l,m,a,b,c) TRACE_(l,printk(m".\n",a,b,c))
  81 #define TRACEx4(l,m,a,b,c,d) TRACE_(l,printk(m".\n",a,b,c,d))
  82 #define TRACEx5(l,m,a,b,c,d,e) TRACE_(l,printk(m".\n",a,b,c,d,e))
  83 #define TRACEx6(l,m,a,b,c,d,e,f) TRACE_(l,printk(m".\n",a,b,c,d,e,f))
  84 
  85 /*      Global variables declared in tracing.c
  86  */
  87 extern unsigned char trace_id;
  88 extern int tracing;             /* sets default level */
  89 extern int function_nest_level;
  90 
  91 /*      Global functions declared in tracing.c
  92  */
  93 extern int trace_call(int level, char *file, char *name);
  94 extern void trace_exit(int level, char *file, char *name);
  95 extern void trace_log(char *file, char *name);
  96 
  97 #endif                          /* NO_TRACE_AT_ALL */
  98 
  99 #endif

/* */