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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
  19
  20 #include "defs.h"
  21 #include "complaints.h"
  22 #include "gdbcmd.h"
  23 #include <varargs.h>
  24
  25 /* Structure to manage complaints about symbol file contents.  */
  26
  27 struct complaint complaint_root[1] = {
  28   {
  29     (char *) NULL,      /* Complaint message */
  30     0,                  /* Complaint counter */
  31     complaint_root      /* Next complaint. */
  32   }
  33 };
  34
  35 /* How many complaints about a particular thing should be printed before
  36    we stop whining about it?  Default is no whining at all, since so many
  37    systems have ill-constructed symbol files.  */
  38
  39 static unsigned int stop_whining = 0;
  40
  41 /* Should each complaint be self explanatory, or should we assume that
  42    a series of complaints is being produced?
  43    case 0:  self explanatory message.
  44    case 1:  First message of a series that must start off with explanation.
  45    case 2:  Subsequent message, when user already knows we are reading
  46             symbols and we can just state our piece.  */
  47
  48 static int complaint_series = 0;
  49
  50 /* External variables and functions referenced. */
  51
  52 extern int info_verbose;
  53
  54 \f
  55 /* Functions to handle complaints during symbol reading.  */
  56
  57 /* Print a complaint about the input symbols, and link the complaint block
  58    into a chain for later handling.  */
  59
  60 /* VARARGS */
  61 void
  62 complain (va_alist)
  63      va_dcl
  64 {
  65   va_list args;
  66   struct complaint *complaint;
  67   char *val;
  68
  69   va_start (args);
  70   complaint = va_arg (args, struct complaint *);
  71   complaint -> counter++;
  72   if (complaint -> next == NULL)
  73     {
  74       complaint -> next = complaint_root -> next;
  75       complaint_root -> next = complaint;
  76     }
  77   if (complaint -> counter > stop_whining)
  78     {
  79       return;
  80     }
  81   wrap_here ("");
  82
  83   switch (complaint_series + (info_verbose << 1))
  84     {
  85
  86       /* Isolated messages, must be self-explanatory.  */
  87       case 0:
  88         begin_line ();
  89         puts_filtered ("During symbol reading, ");
  90         wrap_here ("");
  91         vprintf_filtered (complaint -> message, args);
  92         puts_filtered (".\n");
  93         break;
  94
  95       /* First of a series, without `set verbose'.  */
  96       case 1:
  97         begin_line ();
  98         puts_filtered ("During symbol reading...");
  99         vprintf_filtered (complaint -> message, args);
 100         puts_filtered ("...");
 101         wrap_here ("");
 102         complaint_series++;
 103         break;
 104
 105       /* Subsequent messages of a series, or messages under `set verbose'.
 106          (We'll already have produced a "Reading in symbols for XXX..."
 107          message and will clean up at the end with a newline.)  */
 108       default:
 109         vprintf_filtered (complaint -> message, args);
 110         puts_filtered ("...");
 111         wrap_here ("");
 112     }
 113   va_end (args);
 114 }
 115
 116 /* Clear out all complaint counters that have ever been incremented.
 117    If sym_reading is 1, be less verbose about successive complaints,
 118    since the messages are appearing all together during a command that
 119    reads symbols (rather than scattered around as psymtabs get fleshed
 120    out into symtabs at random times).  If noisy is 1, we are in a
 121    noisy symbol reading command, and our caller will print enough
 122    context for the user to figure it out.  */
 123
 124 void
 125 clear_complaints (sym_reading, noisy)
 126      int sym_reading;
 127      int noisy;
 128 {
 129   struct complaint *p;
 130
 131   for (p = complaint_root -> next; p != complaint_root; p = p -> next)
 132     {
 133       p -> counter = 0;
 134     }
 135
 136   if (!sym_reading && !noisy && complaint_series > 1)
 137     {
 138       /* Terminate previous series, since caller won't.  */
 139       puts_filtered ("\n");
 140     }
 141
 142   complaint_series = sym_reading ? 1 + noisy : 0;
 143 }
 144
 145 _initialize_complaints ()
 146 {
 147   add_show_from_set
 148     (add_set_cmd ("complaints", class_support, var_zinteger,
 149                   (char *) &stop_whining,
 150                   "Set max number of complaints about incorrect symbols.",
 151                   &setlist),
 152      &showlist);
 153
 154 }