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[/] [or1k/] [trunk/] [gdb-5.0/] [gdb/] [complaints.c] - Rev 1765

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/* Support for complaint handling during symbol reading in GDB.
   Copyright (C) 1990, 1991, 1992  Free Software Foundation, Inc.
 
   This file is part of GDB.
 
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.
 
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
 
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */
 
#include "defs.h"
#include "complaints.h"
#include "gdbcmd.h"
 
extern void _initialize_complaints PARAMS ((void));
 
/* Structure to manage complaints about symbol file contents.  */
 
struct complaint complaint_root[1] =
{
  {
    (char *) NULL,		/* Complaint message */
    0,				/* Complaint counter */
    complaint_root		/* Next complaint. */
  }
};
 
/* How many complaints about a particular thing should be printed before
   we stop whining about it?  Default is no whining at all, since so many
   systems have ill-constructed symbol files.  */
 
static unsigned int stop_whining = 0;
 
/* Should each complaint be self explanatory, or should we assume that
   a series of complaints is being produced? 
   case 0:  self explanatory message.
   case 1:  First message of a series that must start off with explanation.
   case 2:  Subsequent message, when user already knows we are reading
   symbols and we can just state our piece.  */
 
static int complaint_series = 0;
 
/* External variables and functions referenced. */
 
extern int info_verbose;

 
/* Functions to handle complaints during symbol reading.  */
 
/* Print a complaint about the input symbols, and link the complaint block
   into a chain for later handling.  */
 
void
complain (struct complaint *complaint,...)
{
  va_list args;
  va_start (args, complaint);
 
  complaint->counter++;
  if (complaint->next == NULL)
    {
      complaint->next = complaint_root->next;
      complaint_root->next = complaint;
    }
  if (complaint->counter > stop_whining)
    {
      return;
    }
  wrap_here ("");
 
  switch (complaint_series + (info_verbose << 1))
    {
 
      /* Isolated messages, must be self-explanatory.  */
    case 0:
      begin_line ();
      fputs_filtered ("During symbol reading, ", gdb_stderr);
      wrap_here ("");
      vfprintf_filtered (gdb_stderr, complaint->message, args);
      fputs_filtered (".\n", gdb_stderr);
      break;
 
      /* First of a series, without `set verbose'.  */
    case 1:
      begin_line ();
      fputs_filtered ("During symbol reading...", gdb_stderr);
      vfprintf_filtered (gdb_stderr, complaint->message, args);
      fputs_filtered ("...", gdb_stderr);
      wrap_here ("");
      complaint_series++;
      break;
 
      /* Subsequent messages of a series, or messages under `set verbose'.
         (We'll already have produced a "Reading in symbols for XXX..."
         message and will clean up at the end with a newline.)  */
    default:
      vfprintf_filtered (gdb_stderr, complaint->message, args);
      fputs_filtered ("...", gdb_stderr);
      wrap_here ("");
    }
  /* If GDB dumps core, we'd like to see the complaints first.  Presumably
     GDB will not be sending so many complaints that this becomes a
     performance hog.  */
  gdb_flush (gdb_stderr);
  va_end (args);
}
 
/* Clear out all complaint counters that have ever been incremented.
   If sym_reading is 1, be less verbose about successive complaints,
   since the messages are appearing all together during a command that
   reads symbols (rather than scattered around as psymtabs get fleshed
   out into symtabs at random times).  If noisy is 1, we are in a
   noisy symbol reading command, and our caller will print enough
   context for the user to figure it out.  */
 
void
clear_complaints (sym_reading, noisy)
     int sym_reading;
     int noisy;
{
  struct complaint *p;
 
  for (p = complaint_root->next; p != complaint_root; p = p->next)
    {
      p->counter = 0;
    }
 
  if (!sym_reading && !noisy && complaint_series > 1)
    {
      /* Terminate previous series, since caller won't.  */
      puts_filtered ("\n");
    }
 
  complaint_series = sym_reading ? 1 + noisy : 0;
}
 
void
_initialize_complaints ()
{
  add_show_from_set
    (add_set_cmd ("complaints", class_support, var_zinteger,
		  (char *) &stop_whining,
		  "Set max number of complaints about incorrect symbols.",
		  &setlist),
     &showlist);
 
}
 

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