gdb/complaints.c

   1 /* Support for complaint handling during symbol reading in GDB.
   2    Copyright (C) 1990, 1991, 1992  Free Software Foundation, Inc.
   3
   4 This file is part of GDB.
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2 of the License, or
   9 (at your option) any later version.
  10
  11 This program 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
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with this program; if not, write to the Free Software
  18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  19
  20 #include "defs.h"
  21 #include "complaints.h"
  22 #include "gdbcmd.h"
  23
  24 /* Structure to manage complaints about symbol file contents.  */
  25
  26 struct complaint complaint_root[1] = {
  27   {
  28     (char *) NULL,      /* Complaint message */
  29     0,                  /* Complaint counter */
  30     complaint_root      /* Next complaint. */
  31   }
  32 };
  33
  34 /* How many complaints about a particular thing should be printed before
  35    we stop whining about it?  Default is no whining at all, since so many
  36    systems have ill-constructed symbol files.  */
  37
  38 static unsigned int stop_whining = 0;
  39
  40 /* Should each complaint be self explanatory, or should we assume that
  41    a series of complaints is being produced?
  42    case 0:  self explanatory message.
  43    case 1:  First message of a series that must start off with explanation.
  44    case 2:  Subsequent message, when user already knows we are reading
  45             symbols and we can just state our piece.  */
  46
  47 static int complaint_series = 0;
  48
  49 /* External variables and functions referenced. */
  50
  51 extern int info_verbose;
  52
  53 \f
  54 /* Functions to handle complaints during symbol reading.  */
  55
  56 /* Print a complaint about the input symbols, and link the complaint block
  57    into a chain for later handling.  */
  58
  59 /* VARARGS */
  60 void
  61 #ifdef ANSI_PROTOTYPES
  62 complain (struct complaint *complaint, ...)
  63 #else
  64 complain (va_alist)
  65      va_dcl
  66 #endif
  67 {
  68   va_list args;
  69 #ifdef ANSI_PROTOTYPES
  70   va_start (args, complaint);
  71 #else
  72   struct complaint *complaint;
  73
  74   va_start (args);
  75   complaint = va_arg (args, struct complaint *);
  76 #endif
  77
  78   complaint -> counter++;
  79   if (complaint -> next == NULL)
  80     {
  81       complaint -> next = complaint_root -> next;
  82       complaint_root -> next = complaint;
  83     }
  84   if (complaint -> counter > stop_whining)
  85     {
  86       return;
  87     }
  88   wrap_here ("");
  89
  90   switch (complaint_series + (info_verbose << 1))
  91     {
  92
  93       /* Isolated messages, must be self-explanatory.  */
  94       case 0:
  95         begin_line ();
  96         puts_filtered ("During symbol reading, ");
  97         wrap_here ("");
  98         vprintf_filtered (complaint -> message, args);
  99         puts_filtered (".\n");
 100         break;
 101
 102       /* First of a series, without `set verbose'.  */
 103       case 1:
 104         begin_line ();
 105         puts_filtered ("During symbol reading...");
 106         vprintf_filtered (complaint -> message, args);
 107         puts_filtered ("...");
 108         wrap_here ("");
 109         complaint_series++;
 110         break;
 111
 112       /* Subsequent messages of a series, or messages under `set verbose'.
 113          (We'll already have produced a "Reading in symbols for XXX..."
 114          message and will clean up at the end with a newline.)  */
 115       default:
 116         vprintf_filtered (complaint -> message, args);
 117         puts_filtered ("...");
 118         wrap_here ("");
 119     }
 120   /* If GDB dumps core, we'd like to see the complaints first.  Presumably
 121      GDB will not be sending so many complaints that this becomes a
 122      performance hog.  */
 123   gdb_flush (gdb_stdout);
 124   va_end (args);
 125 }
 126
 127 /* Clear out all complaint counters that have ever been incremented.
 128    If sym_reading is 1, be less verbose about successive complaints,
 129    since the messages are appearing all together during a command that
 130    reads symbols (rather than scattered around as psymtabs get fleshed
 131    out into symtabs at random times).  If noisy is 1, we are in a
 132    noisy symbol reading command, and our caller will print enough
 133    context for the user to figure it out.  */
 134
 135 void
 136 clear_complaints (sym_reading, noisy)
 137      int sym_reading;
 138      int noisy;
 139 {
 140   struct complaint *p;
 141
 142   for (p = complaint_root -> next; p != complaint_root; p = p -> next)
 143     {
 144       p -> counter = 0;
 145     }
 146
 147   if (!sym_reading && !noisy && complaint_series > 1)
 148     {
 149       /* Terminate previous series, since caller won't.  */
 150       puts_filtered ("\n");
 151     }
 152
 153   complaint_series = sym_reading ? 1 + noisy : 0;
 154 }
 155
 156 void
 157 _initialize_complaints ()
 158 {
 159   add_show_from_set
 160     (add_set_cmd ("complaints", class_support, var_zinteger,
 161                   (char *) &stop_whining,
 162                   "Set max number of complaints about incorrect symbols.",
 163                   &setlist),
 164      &showlist);
 165
 166 }