debugger/display.c

   1 /*
   2  * File display.c - display handling for Wine internal debugger.
   3  *
   4  * Copyright (C) 1997, Eric Youngdale.
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include <stdlib.h>
  22 #include <string.h>
  23 #include <limits.h>
  24 #include <sys/types.h>
  25
  26 #include "debugger.h"
  27
  28 #include <stdarg.h>
  29
  30 #define MAX_DISPLAY 25
  31
  32 struct display
  33 {
  34   struct expr * exp;
  35   int           count;
  36   char          format;
  37 };
  38
  39 static struct display displaypoints[MAX_DISPLAY];
  40
  41 int
  42 DEBUG_AddDisplay(struct expr * exp, int count, char format)
  43 {
  44   int i;
  45
  46   /*
  47    * First find a slot where we can store this display.
  48    */
  49   for(i=0; i < MAX_DISPLAY; i++ )
  50     {
  51       if( displaypoints[i].exp == NULL )
  52         {
  53           displaypoints[i].exp = DEBUG_CloneExpr(exp);
  54           displaypoints[i].count  = count;
  55           displaypoints[i].format = format;
  56           break;
  57         }
  58     }
  59
  60   return TRUE;
  61 }
  62
  63 int
  64 DEBUG_InfoDisplay(void)
  65 {
  66   int i;
  67
  68   /*
  69    * First find a slot where we can store this display.
  70    */
  71   for(i=0; i < MAX_DISPLAY; i++ )
  72     {
  73       if( displaypoints[i].exp != NULL )
  74         {
  75           DEBUG_Printf(DBG_CHN_MESG, "%d : ", i+1);
  76           DEBUG_DisplayExpr(displaypoints[i].exp);
  77           DEBUG_Printf(DBG_CHN_MESG, "\n");
  78         }
  79     }
  80
  81   return TRUE;
  82 }
  83
  84 int
  85 DEBUG_DoDisplay(void)
  86 {
  87   DBG_VALUE     value;
  88   int           i;
  89
  90   /*
  91    * First find a slot where we can store this display.
  92    */
  93   for(i=0; i < MAX_DISPLAY; i++ )
  94     {
  95       if( displaypoints[i].exp != NULL )
  96         {
  97           value = DEBUG_EvalExpr(displaypoints[i].exp);
  98           if( value.type == NULL )
  99             {
 100               DEBUG_Printf(DBG_CHN_MESG, "Unable to evaluate expression ");
 101               DEBUG_DisplayExpr(displaypoints[i].exp);
 102               DEBUG_Printf(DBG_CHN_MESG, "\nDisabling...\n");
 103               DEBUG_DelDisplay(i);
 104             }
 105           else
 106             {
 107               DEBUG_Printf(DBG_CHN_MESG, "%d  : ", i + 1);
 108               DEBUG_DisplayExpr(displaypoints[i].exp);
 109               DEBUG_Printf(DBG_CHN_MESG, " = ");
 110               if( displaypoints[i].format == 'i' )
 111                 {
 112                   DEBUG_ExamineMemory( &value,
 113                                        displaypoints[i].count,
 114                                        displaypoints[i].format);
 115                 }
 116               else
 117                 {
 118                   DEBUG_Print( &value,
 119                                displaypoints[i].count,
 120                                displaypoints[i].format, 0);
 121                 }
 122             }
 123         }
 124     }
 125
 126   return TRUE;
 127 }
 128
 129 int
 130 DEBUG_DelDisplay(int displaynum)
 131 {
 132   int i;
 133
 134   if( displaynum >= MAX_DISPLAY || displaynum == 0 || displaynum < -1 )
 135     {
 136       DEBUG_Printf(DBG_CHN_MESG, "Invalid display number\n");
 137       return TRUE;
 138     }
 139   if( displaynum == -1 )
 140     {
 141       for(i=0; i < MAX_DISPLAY; i++ )
 142         {
 143           if( displaypoints[i].exp != NULL )
 144             {
 145               DEBUG_FreeExpr(displaypoints[i].exp);
 146               displaypoints[i].exp = NULL;
 147             }
 148         }
 149     }
 150   else if( displaypoints[displaynum - 1].exp != NULL )
 151     {
 152       DEBUG_FreeExpr(displaypoints[displaynum - 1].exp);
 153       displaypoints[displaynum - 1].exp = NULL;
 154     }
 155   return TRUE;
 156 }