/* Definitions for complaint handling during symbol reading in GDB.
- Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc.
-This file is part of GDB.
+ Copyright (C) 1990-2022 Free Software Foundation, Inc.
-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 file is part of GDB.
-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.
+ 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 3 of the License, or
+ (at your option) any later version.
-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. */
+ 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, see <http://www.gnu.org/licenses/>. */
-/* Support for complaining about things in the symbol file that aren't
- catastrophic.
- Each such thing gets a counter. The first time we have the problem,
- during a symbol read, we report it. At the end of symbol reading,
- if verbose, we report how many of each problem we had. */
+#if !defined (COMPLAINTS_H)
+#define COMPLAINTS_H
-struct complaint
+#include <unordered_set>
+
+/* Helper for complaint. */
+extern void complaint_internal (const char *fmt, ...)
+ ATTRIBUTE_PRINTF (1, 2);
+
+/* This controls whether complaints are emitted. */
+
+extern int stop_whining;
+
+/* Register a complaint. This is a macro around complaint_internal to
+ avoid computing complaint's arguments when complaints are disabled.
+ Running FMT via gettext [i.e., _(FMT)] can be quite expensive, for
+ example. */
+#define complaint(FMT, ...) \
+ do \
+ { \
+ if (stop_whining > 0) \
+ complaint_internal (FMT, ##__VA_ARGS__); \
+ } \
+ while (0)
+
+/* Clear out / initialize all complaint counters that have ever been
+ incremented. */
+
+extern void clear_complaints ();
+
+/* A class that can handle calls to complaint from multiple threads.
+ When this is instantiated, it hooks into the complaint mechanism,
+ so the 'complaint' macro can continue to be used. When it is
+ destroyed, it issues all the complaints that have been stored. It
+ should only be instantiated in the main thread. */
+
+class complaint_interceptor
{
- char *message;
- unsigned counter;
- struct complaint *next;
-};
+public:
+
+ complaint_interceptor ();
+ ~complaint_interceptor ();
-/* Root of the chain of complaints that have at some point been issued.
- This is used to reset the counters, and/or report the total counts. */
+ DISABLE_COPY_AND_ASSIGN (complaint_interceptor);
-extern struct complaint complaint_root[1];
+private:
-/* Functions that handle complaints. (in complaints.c) */
+ /* The issued complaints. */
+ std::unordered_set<std::string> m_complaints;
-extern void
-complain PARAMS ((struct complaint *, ...));
+ /* The saved value of deprecated_warning_hook. */
+ void (*m_saved_warning_hook) (const char *, va_list)
+ ATTRIBUTE_FPTR_PRINTF (1,0);
+
+ /* A helper function that is used by the 'complaint' implementation
+ to issue a complaint. */
+ static void issue_complaint (const char *, va_list)
+ ATTRIBUTE_PRINTF (1, 0);
+
+ /* This object. Used by the static callback function. */
+ static complaint_interceptor *g_complaint_interceptor;
+};
-extern void
-clear_complaints PARAMS ((int, int));
+#endif /* !defined (COMPLAINTS_H) */