binutils-gdb/gdb/complaints.c

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/* Support for complaint handling during symbol reading in GDB.
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Copyright 1990, 1991, 1992, 1993, 1995, 1998, 1999, 2000
Free Software Foundation, Inc.
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This file is part of GDB.
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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.
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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.
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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"
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extern void _initialize_complaints (void);
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/* Structure to manage complaints about symbol file contents. */
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struct complaint complaint_root[1] =
{
{
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(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
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symbols and we can just state our piece. */
static int complaint_series = 0;
/* External variables and functions referenced. */
extern int info_verbose;
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/* 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
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complain (struct complaint *complaint,...)
{
va_list args;
va_start (args, complaint);
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complaint->counter++;
if (complaint->next == NULL)
{
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complaint->next = complaint_root->next;
complaint_root->next = complaint;
}
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if (complaint->counter > stop_whining)
{
return;
}
wrap_here ("");
switch (complaint_series + (info_verbose << 1))
{
/* Isolated messages, must be self-explanatory. */
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case 0:
if (warning_hook)
(*warning_hook) (complaint->message, args);
else
{
begin_line ();
fputs_filtered ("During symbol reading, ", gdb_stderr);
wrap_here ("");
vfprintf_filtered (gdb_stderr, complaint->message, args);
fputs_filtered (".\n", gdb_stderr);
}
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break;
/* First of a series, without `set verbose'. */
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case 1:
if (warning_hook)
(*warning_hook) (complaint->message, args);
else
{
begin_line ();
fputs_filtered ("During symbol reading...", gdb_stderr);
vfprintf_filtered (gdb_stderr, complaint->message, args);
fputs_filtered ("...", gdb_stderr);
wrap_here ("");
complaint_series++;
}
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break;
/* Subsequent messages of a series, or messages under `set verbose'.
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(We'll already have produced a "Reading in symbols for XXX..."
message and will clean up at the end with a newline.) */
default:
if (warning_hook)
(*warning_hook) (complaint->message, args);
else
{
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. */
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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
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clear_complaints (int sym_reading, int noisy)
{
struct complaint *p;
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for (p = complaint_root->next; p != complaint_root; p = p->next)
{
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p->counter = 0;
}
if (!sym_reading && !noisy && complaint_series > 1 && !warning_hook)
{
/* Terminate previous series, since caller won't. */
puts_filtered ("\n");
}
complaint_series = sym_reading ? 1 + noisy : 0;
}
void
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_initialize_complaints (void)
{
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);
}