X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;ds=sidebyside;f=include%2Fdiagnostics.h;h=82d871b5b2ac83ec10df56212f638bdb1a442aaa;hb=456e800a63def18484f69a51f59c2338a5cc4568;hp=4a674106dc01905719f3a757e6546bef5f4969d4;hpb=95da9854466ada2572b42f5528711a06a2d42db1;p=deliverable%2Fbinutils-gdb.git

diff --git a/include/diagnostics.h b/include/diagnostics.h
index 4a674106dc..82d871b5b2 100644
--- a/include/diagnostics.h
+++ b/include/diagnostics.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 2017-2018 Free Software Foundation, Inc.
+/* Copyright (C) 2017-2020 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
@@ -16,6 +16,20 @@
 #ifndef DIAGNOSTICS_H
 #define DIAGNOSTICS_H
 
+/* If at all possible, fix the source rather than using these macros
+   to silence warnings.  If you do use these macros be aware that
+   you'll need to condition their use on particular compiler versions,
+   which can be done for gcc using ansidecl.h's GCC_VERSION macro.
+
+   gcc versions between 4.2 and 4.6 do not allow pragma control of
+   diagnostics inside functions, giving a hard error if you try to use
+   the finer control available with later versions.
+   gcc prior to 4.2 warns about diagnostic push and pop.
+
+   The other macros have restrictions too, for example gcc-5, gcc-6
+   and gcc-7 warn that -Wstringop-truncation is unknown, unless you
+   also add DIAGNOSTIC_IGNORE ("-Wpragma").  */
+
 #ifdef __GNUC__
 # define DIAGNOSTIC_PUSH _Pragma ("GCC diagnostic push")
 # define DIAGNOSTIC_POP _Pragma ("GCC diagnostic pop")
@@ -35,33 +49,38 @@
 #if defined (__clang__) /* clang */
 
 # define DIAGNOSTIC_IGNORE_SELF_MOVE DIAGNOSTIC_IGNORE ("-Wself-move")
+# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS \
+  DIAGNOSTIC_IGNORE ("-Wdeprecated-declarations")
 # define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER \
   DIAGNOSTIC_IGNORE ("-Wdeprecated-register")
-# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \
-  DIAGNOSTIC_IGNORE ("-Wunused-function")
 # if __has_warning ("-Wenum-compare-switch")
 #  define DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES \
    DIAGNOSTIC_IGNORE ("-Wenum-compare-switch")
 # endif
-#elif defined (__GNUC__) /* GCC */
 
-# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION \
-  DIAGNOSTIC_IGNORE ("-Wunused-function")
+# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
+  DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
+
+#elif defined (__GNUC__) /* GCC */
 
 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION \
   DIAGNOSTIC_IGNORE ("-Wstringop-truncation")
+
+# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL \
+  DIAGNOSTIC_IGNORE ("-Wformat-nonliteral")
+
 #endif
 
 #ifndef DIAGNOSTIC_IGNORE_SELF_MOVE
 # define DIAGNOSTIC_IGNORE_SELF_MOVE
 #endif
 
-#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
-# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
+#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
+# define DIAGNOSTIC_IGNORE_DEPRECATED_DECLARATIONS
 #endif
 
-#ifndef DIAGNOSTIC_IGNORE_UNUSED_FUNCTION
-# define DIAGNOSTIC_IGNORE_UNUSED_FUNCTION
+#ifndef DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
+# define DIAGNOSTIC_IGNORE_DEPRECATED_REGISTER
 #endif
 
 #ifndef DIAGNOSTIC_IGNORE_SWITCH_DIFFERENT_ENUM_TYPES
@@ -72,4 +91,8 @@
 # define DIAGNOSTIC_IGNORE_STRINGOP_TRUNCATION
 #endif
 
+#ifndef DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
+# define DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
+#endif
+
 #endif /* DIAGNOSTICS_H */