/* Support for complaint handling during symbol reading in GDB.
- Copyright 1990, 1991, 1992, 1993, 1995, 1998, 1999, 2000, 2002,
- 2004 Free Software Foundation, Inc.
+ Copyright (C) 1990-2020 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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "complaints.h"
-#include "gdb_assert.h"
#include "command.h"
#include "gdbcmd.h"
+#include <unordered_map>
-extern void _initialize_complaints (void);
-
-/* Should each complaint message be self explanatory, or should we assume that
- a series of complaints is being produced? */
-
-/* case 1: First message of a series that must
- start off with explanation. case 2: Subsequent message of a series
- that needs no explanation (the user already knows we have a problem
- so we can just state our piece). */
-enum complaint_series {
- /* Isolated self explanatory message. */
- ISOLATED_MESSAGE,
- /* First message of a series, includes an explanation. */
- FIRST_MESSAGE,
- /* First message of a series, but does not need to include any sort
- of explanation. */
- SHORT_FIRST_MESSAGE,
- /* Subsequent message of a series that needs no explanation (the
- user already knows we have a problem so we can just state our
- piece). */
- SUBSEQUENT_MESSAGE
-};
-
-/* Structure to manage complaints about symbol file contents. */
-
-struct complain
-{
- const char *file;
- int line;
- const char *fmt;
- int counter;
- struct complain *next;
-};
-
-/* The explanatory message that should accompany the complaint. The
- message is in two parts - pre and post - that are printed around
- the complaint text. */
-struct explanation
-{
- const char *prefix;
- const char *postfix;
-};
-
-struct complaints
-{
- struct complain *root;
-
- /* Should each complaint be self explanatory, or should we assume
- that a series of complaints is being produced? case 0: Isolated
- self explanatory message. case 1: First message of a series that
- must start off with explanation. case 2: Subsequent message of a
- series that needs no explanation (the user already knows we have
- a problem so we can just state our piece). */
- int series;
-
- /* The explanatory messages that should accompany the complaint.
- NOTE: cagney/2002-08-14: In a desperate attempt at being vaguely
- i18n friendly, this is an array of two messages. When present,
- the PRE and POST EXPLANATION[SERIES] are used to wrap the
- message. */
- const struct explanation *explanation;
-};
-
-static struct complain complaint_sentinel;
-
-/* The symbol table complaint table. */
-
-static struct explanation symfile_explanations[] = {
- { "During symbol reading, ", "." },
- { "During symbol reading...", "..."},
- { "", "..."},
- { "", "..."},
- { NULL, NULL }
-};
-
-static struct complaints symfile_complaint_book = {
- &complaint_sentinel,
- 0,
- symfile_explanations
-};
-struct complaints *symfile_complaints = &symfile_complaint_book;
-
-/* Wrapper function to, on-demand, fill in a complaints object. */
-
-static struct complaints *
-get_complaints (struct complaints **c)
-{
- if ((*c) != NULL)
- return (*c);
- (*c) = XMALLOC (struct complaints);
- (*c)->root = &complaint_sentinel;
- (*c)->series = ISOLATED_MESSAGE;
- (*c)->explanation = NULL;
- return (*c);
-}
-
-static struct complain *
-find_complaint (struct complaints *complaints, const char *file,
- int line, const char *fmt)
-{
- struct complain *complaint;
-
- /* Find the complaint in the table. A more efficient search
- algorithm (based on hash table or something) could be used. But
- that can wait until someone shows evidence that this lookup is
- a real bottle neck. */
- for (complaint = complaints->root;
- complaint != NULL;
- complaint = complaint->next)
- {
- if (complaint->fmt == fmt
- && complaint->file == file
- && complaint->line == line)
- return complaint;
- }
-
- /* Oops not seen before, fill in a new complaint. */
- complaint = XMALLOC (struct complain);
- complaint->fmt = fmt;
- complaint->file = file;
- complaint->line = line;
- complaint->counter = 0;
- complaint->next = NULL;
-
- /* File it, return it. */
- complaint->next = complaints->root;
- complaints->root = complaint;
- return complaint;
-}
+/* Map format strings to counters. */
+static std::unordered_map<const char *, int> counters;
/* 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;
+int stop_whining = 0;
-/* Print a complaint, and link the complaint block into a chain for
- later handling. */
+/* See complaints.h. */
-static void
-vcomplaint (struct complaints **c, const char *file, int line, const char *fmt,
- va_list args)
+void
+complaint_internal (const char *fmt, ...)
{
- struct complaints *complaints = get_complaints (c);
- struct complain *complaint = find_complaint (complaints, file, line, fmt);
- enum complaint_series series;
- gdb_assert (complaints != NULL);
+ va_list args;
- complaint->counter++;
- if (complaint->counter > stop_whining)
+ if (++counters[fmt] > stop_whining)
return;
- if (info_verbose)
- series = SUBSEQUENT_MESSAGE;
- else
- series = complaints->series;
+ va_start (args, fmt);
- if (complaint->file != NULL)
- internal_vwarning (complaint->file, complaint->line, complaint->fmt, args);
- else if (deprecated_warning_hook)
- (*deprecated_warning_hook) (complaint->fmt, args);
+ if (deprecated_warning_hook)
+ (*deprecated_warning_hook) (fmt, args);
else
{
- if (complaints->explanation == NULL)
- /* A [v]warning() call always appends a newline. */
- vwarning (complaint->fmt, args);
- else
- {
- char *msg;
- struct cleanup *cleanups;
- msg = xstrvprintf (complaint->fmt, args);
- cleanups = make_cleanup (xfree, msg);
- wrap_here ("");
- if (series != SUBSEQUENT_MESSAGE)
- begin_line ();
- /* XXX: i18n */
- fprintf_filtered (gdb_stderr, "%s%s%s",
- complaints->explanation[series].prefix, msg,
- complaints->explanation[series].postfix);
- /* Force a line-break after any isolated message. For the
- other cases, clear_complaints() takes care of any missing
- trailing newline, the wrap_here() is just a hint. */
- if (series == ISOLATED_MESSAGE)
- /* It would be really nice to use begin_line() here.
- Unfortunately that function doesn't track GDB_STDERR and
- consequently will sometimes supress a line when it
- shouldn't. */
- fputs_filtered ("\n", gdb_stderr);
- else
- wrap_here ("");
- do_cleanups (cleanups);
- }
- }
-
- switch (series)
- {
- case ISOLATED_MESSAGE:
- break;
- case FIRST_MESSAGE:
- complaints->series = SUBSEQUENT_MESSAGE;
- break;
- case SUBSEQUENT_MESSAGE:
- case SHORT_FIRST_MESSAGE:
- complaints->series = SUBSEQUENT_MESSAGE;
- break;
+ fputs_filtered (_("During symbol reading: "), gdb_stderr);
+ vfprintf_filtered (gdb_stderr, fmt, args);
+ fputs_filtered ("\n", gdb_stderr);
}
- /* 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);
-}
-
-void
-complaint (struct complaints **complaints, const char *fmt, ...)
-{
- va_list args;
- va_start (args, fmt);
- vcomplaint (complaints, NULL/*file*/, 0/*line*/, fmt, args);
va_end (args);
}
+/* See complaints.h. */
+
void
-internal_complaint (struct complaints **complaints, const char *file,
- int line, const char *fmt, ...)
+clear_complaints ()
{
- va_list args;
- va_start (args, fmt);
- vcomplaint (complaints, file, line, fmt, args);
- va_end (args);
+ counters.clear ();
}
-/* Clear out / initialize all complaint counters that have ever been
- incremented. If LESS_VERBOSE is 1, be less verbose about
- successive complaints, since the messages are appearing all
- together during a command that is reporting a contiguous block of
- complaints (rather than being interleaved with other messages). If
- noisy is 1, we are in a noisy command, and our caller will print
- enough context for the user to figure it out. */
-
-void
-clear_complaints (struct complaints **c, int less_verbose, int noisy)
+static void
+complaints_show_value (struct ui_file *file, int from_tty,
+ struct cmd_list_element *cmd, const char *value)
{
- struct complaints *complaints = get_complaints (c);
- struct complain *p;
-
- for (p = complaints->root; p != NULL; p = p->next)
- {
- p->counter = 0;
- }
-
- switch (complaints->series)
- {
- case FIRST_MESSAGE:
- /* Haven't yet printed anything. */
- break;
- case SHORT_FIRST_MESSAGE:
- /* Haven't yet printed anything. */
- break;
- case ISOLATED_MESSAGE:
- /* The code above, always forces a line-break. No need to do it
- here. */
- break;
- case SUBSEQUENT_MESSAGE:
- /* It would be really nice to use begin_line() here.
- Unfortunately that function doesn't track GDB_STDERR and
- consequently will sometimes supress a line when it shouldn't. */
- fputs_unfiltered ("\n", gdb_stderr);
- break;
- default:
- internal_error (__FILE__, __LINE__, _("bad switch"));
- }
-
- if (!less_verbose)
- complaints->series = ISOLATED_MESSAGE;
- else if (!noisy)
- complaints->series = FIRST_MESSAGE;
- else
- complaints->series = SHORT_FIRST_MESSAGE;
+ fprintf_filtered (file, _("Max number of complaints about incorrect"
+ " symbols is %s.\n"),
+ value);
}
+void _initialize_complaints ();
void
-_initialize_complaints (void)
+_initialize_complaints ()
{
- add_setshow_zinteger_cmd ("complaints", class_support, &stop_whining, _("\
+ add_setshow_zinteger_cmd ("complaints", class_support,
+ &stop_whining, _("\
Set max number of complaints about incorrect symbols."), _("\
-Show max number of complaints about incorrect symbols."), NULL, _("\
-Max number of complaints about incorrect symbols is %s."),
- NULL, NULL,
+Show max number of complaints about incorrect symbols."), NULL,
+ NULL, complaints_show_value,
&setlist, &showlist);
-
}
projects / deliverable / binutils-gdb.git / blobdiff