| // Specific definitions for VxWorks -*- C++ -*- |
| |
| // Copyright (C) 2000-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library 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, or (at your option) |
| // any later version. |
| |
| // This library 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. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file bits/os_defines.h |
| * This is an internal header file, included by other library headers. |
| * Do not attempt to use it directly. @headername{iosfwd} |
| */ |
| |
| #ifndef _GLIBCXX_OS_DEFINES |
| #define _GLIBCXX_OS_DEFINES 1 |
| |
| // System-specific #define, typedefs, corrections, etc, go here. This |
| // file will come before all others. |
| |
| // The system environment we can rely on varies across VxWorks |
| // versions. |
| #include <_vxworks-versions.h> |
| |
| // Weak refs are supported starting with VxWorks 7, in RTP mode only |
| |
| #if _VXWORKS_MAJOR_GE(7) && defined(__RTP__) |
| #define _GLIBCXX_USE_WEAK_REF 1 |
| #else |
| #define _GLIBCXX_USE_WEAK_REF 0 |
| #endif |
| |
| // We support TLS on VxWorks (either directly or with emutls) |
| #define _GLIBCXX_HAVE_TLS 1 |
| |
| // VxWorks7 comes with a DinkumWare library and the system headers which we |
| // are going to include for libstdc++ have a few related intrinsic |
| // assumptions. We control our own configuration here to best integrate with |
| // this environment: use C99 math headers, do not use the FP macros for |
| // dynamic cast by default (overriden for RTPs below) and arrange to disable |
| // the system TR1 declarations as we'll provide ours. |
| |
| #if _VXWORKS_MAJOR_GE(7) |
| |
| #define _GLIBCXX_USE_C99_MATH 1 |
| #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC 0 |
| |
| #undef _HAS_TR1_DECLARATIONS |
| #define _HAS_TR1_DECLARATIONS 0 |
| |
| #else // VXWORKS_MAJOR < 7 |
| |
| // For RTPs, use the VxWorks headers as a basis, from which we can use |
| // C99 dynamic FP macros and expect (after fixincludes) accurate c++11 |
| // prototypes for FP. |
| |
| #ifdef __RTP__ |
| |
| #define _GLIBCXX_INCLUDE_NEXT_C_HEADERS 1 |
| |
| #undef _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC |
| #define _GLIBCXX_USE_C99_FP_MACROS_DYNAMIC 1 |
| |
| #define __CORRECT_ISO_CPP11_MATH_H_PROTO_FP |
| |
| #else // !__RTP__ |
| |
| // libstdc++ will include system headers and vxWorks.h ought to have |
| // been included ahead for VxWorks kernel modules prior to VxWorks 7 |
| #include <vxWorks.h> |
| |
| #endif // __RTP__ |
| |
| #endif // _VXWORKS_MAJOR >= 7 |
| |
| // The min/max "functions" may be refered to with a namespace prefix. |
| // Prevent possible redefinitions as macros from VxWorks headers. |
| #undef NOMINMAX |
| #define NOMINMAX 1 |
| |
| // Do not include the inline definitions from VxWorks headers, as we'll |
| // want to use the ones from libstdc++ instead. |
| #undef _NO_CPP_INLINES |
| #define _NO_CPP_INLINES 1 |
| |
| #endif // _GLIBCXX_OS_DEFINES |
