gdb: LoongArch: Remove nonportable #include

[binutils-gdb.git] / gdb / complaints.h

diff --git a/gdb/complaints.h b/gdb/complaints.h
index b3bb4068e1b65b710b9da8231aee0563e53f327d..68c79bd6d0a1f99994805b976bca082d6ad1db88 100644 (file)
--- a/gdb/complaints.h
+++ b/gdb/complaints.h
@@ -1,6 +1,6 @@
 /* Definitions for complaint handling during symbol reading in GDB.
 
-   Copyright (C) 1990-2020 Free Software Foundation, Inc.
+   Copyright (C) 1990-2022 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -21,10 +21,16 @@
 #if !defined (COMPLAINTS_H)
 #define COMPLAINTS_H
 
+#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
@@ -32,8 +38,6 @@ extern void complaint_internal (const char *fmt, ...)
 #define complaint(FMT, ...)                                    \
   do                                                           \
     {                                                          \
-      extern int stop_whining;                                 \
-                                                               \
       if (stop_whining > 0)                                    \
        complaint_internal (FMT, ##__VA_ARGS__);                \
     }                                                          \
@@ -44,5 +48,37 @@ extern void complaint_internal (const char *fmt, ...)
 
 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
+{
+public:
+
+  complaint_interceptor ();
+  ~complaint_interceptor ();
+
+  DISABLE_COPY_AND_ASSIGN (complaint_interceptor);
+
+private:
+
+  /* The issued complaints.  */
+  std::unordered_set<std::string> m_complaints;
+
+  /* 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;
+};
 
 #endif /* !defined (COMPLAINTS_H) */