1 /* C++ specific Solaris system support.
2 Copyright (C) 2011-2015 Free Software Foundation, Inc.
4 This file is part of GCC.
6 GCC is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
11 GCC is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with GCC; see the file COPYING3. If not see
18 <http://www.gnu.org/licenses/>. */
22 #include "coretypes.h"
27 #include "stringpool.h"
28 #include "cp/cp-tree.h"
32 /* Before GCC 4.7, g++ defined __cplusplus 1 to avoid coping with the C++98
33 overloads in Solaris system headers. Since this was fixed, 4 structure
34 types would move to namespace std, breaking the Solaris libstdc++ ABI.
35 To avoid this, we forcefully keep those types in the global namespace.
36 This can be removed once the next major version of libstdc++ is
39 /* Cache the identifiers of the affected types to speed up lookup. */
41 static GTY(()) tree force_global_identifiers
[NUM_FGID
];
43 /* Check if DECL is one of the affected types and move it to the global
46 solaris_cxx_decl_mangling_context (const_tree decl
)
48 static bool init
= false;
53 force_global_identifiers
[i
++] = get_identifier ("div_t");
54 force_global_identifiers
[i
++] = get_identifier ("ldiv_t");
55 force_global_identifiers
[i
++] = get_identifier ("lconv");
56 force_global_identifiers
[i
++] = get_identifier ("tm");
60 if (!(DECL_P (decl
) && DECL_NAMESPACE_STD_P (CP_DECL_CONTEXT (decl
))))
63 for (i
= 0; i
< NUM_FGID
; i
++)
64 if (DECL_NAME (decl
) == force_global_identifiers
[i
])
65 return global_namespace
;