diff options
Diffstat (limited to 'Include')
| -rw-r--r-- | Include/exports.h | 30 | ||||
| -rw-r--r-- | Include/pyport.h | 24 |
2 files changed, 43 insertions, 11 deletions
diff --git a/Include/exports.h b/Include/exports.h new file mode 100644 index 0000000..fc1a5c5 --- /dev/null +++ b/Include/exports.h @@ -0,0 +1,30 @@ +#ifndef Py_EXPORTS_H +#define Py_EXPORTS_H + +#if defined(_WIN32) || defined(__CYGWIN__) + #define Py_IMPORTED_SYMBOL __declspec(dllimport) + #define Py_EXPORTED_SYMBOL __declspec(dllexport) + #define Py_LOCAL_SYMBOL +#else +/* + * If we only ever used gcc >= 5, we could use __has_attribute(visibility) + * as a cross-platform way to determine if visibility is supported. However, + * we may still need to support gcc >= 4, as some Ubuntu LTS and Centos versions + * have 4 < gcc < 5. + */ + #ifndef __has_attribute + #define __has_attribute(x) 0 // Compatibility with non-clang compilers. + #endif + #if (defined(__GNUC__) && (__GNUC__ >= 4)) ||\ + (defined(__clang__) && __has_attribute(visibility)) + #define Py_IMPORTED_SYMBOL __attribute__ ((visibility ("default"))) + #define Py_EXPORTED_SYMBOL __attribute__ ((visibility ("default"))) + #define Py_LOCAL_SYMBOL __attribute__ ((visibility ("hidden"))) + #else + #define Py_IMPORTED_SYMBOL + #define Py_EXPORTED_SYMBOL + #define Py_LOCAL_SYMBOL + #endif +#endif + +#endif /* Py_EXPORTS_H */ diff --git a/Include/pyport.h b/Include/pyport.h index 51967d1..64c73f0 100644 --- a/Include/pyport.h +++ b/Include/pyport.h @@ -638,16 +638,18 @@ extern char * _getpty(int *, int, mode_t, int); # define HAVE_DECLSPEC_DLL #endif +#include "exports.h" + /* only get special linkage if built as shared or platform is Cygwin */ #if defined(Py_ENABLE_SHARED) || defined(__CYGWIN__) # if defined(HAVE_DECLSPEC_DLL) # if defined(Py_BUILD_CORE) && !defined(Py_BUILD_CORE_MODULE) -# define PyAPI_FUNC(RTYPE) __declspec(dllexport) RTYPE -# define PyAPI_DATA(RTYPE) extern __declspec(dllexport) RTYPE +# define PyAPI_FUNC(RTYPE) Py_EXPORTED_SYMBOL RTYPE +# define PyAPI_DATA(RTYPE) extern Py_EXPORTED_SYMBOL RTYPE /* module init functions inside the core need no external linkage */ /* except for Cygwin to handle embedding */ # if defined(__CYGWIN__) -# define PyMODINIT_FUNC __declspec(dllexport) PyObject* +# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject* # else /* __CYGWIN__ */ # define PyMODINIT_FUNC PyObject* # endif /* __CYGWIN__ */ @@ -658,14 +660,14 @@ extern char * _getpty(int *, int, mode_t, int); /* failures similar to those described at the bottom of 4.1: */ /* http://docs.python.org/extending/windows.html#a-cookbook-approach */ # if !defined(__CYGWIN__) -# define PyAPI_FUNC(RTYPE) __declspec(dllimport) RTYPE +# define PyAPI_FUNC(RTYPE) Py_IMPORTED_SYMBOL RTYPE # endif /* !__CYGWIN__ */ -# define PyAPI_DATA(RTYPE) extern __declspec(dllimport) RTYPE +# define PyAPI_DATA(RTYPE) extern Py_IMPORTED_SYMBOL RTYPE /* module init functions outside the core must be exported */ # if defined(__cplusplus) -# define PyMODINIT_FUNC extern "C" __declspec(dllexport) PyObject* +# define PyMODINIT_FUNC extern "C" Py_EXPORTED_SYMBOL PyObject* # else /* __cplusplus */ -# define PyMODINIT_FUNC __declspec(dllexport) PyObject* +# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject* # endif /* __cplusplus */ # endif /* Py_BUILD_CORE */ # endif /* HAVE_DECLSPEC_DLL */ @@ -673,16 +675,16 @@ extern char * _getpty(int *, int, mode_t, int); /* If no external linkage macros defined by now, create defaults */ #ifndef PyAPI_FUNC -# define PyAPI_FUNC(RTYPE) RTYPE +# define PyAPI_FUNC(RTYPE) Py_EXPORTED_SYMBOL RTYPE #endif #ifndef PyAPI_DATA -# define PyAPI_DATA(RTYPE) extern RTYPE +# define PyAPI_DATA(RTYPE) extern Py_EXPORTED_SYMBOL RTYPE #endif #ifndef PyMODINIT_FUNC # if defined(__cplusplus) -# define PyMODINIT_FUNC extern "C" PyObject* +# define PyMODINIT_FUNC extern "C" Py_EXPORTED_SYMBOL PyObject* # else /* __cplusplus */ -# define PyMODINIT_FUNC PyObject* +# define PyMODINIT_FUNC Py_EXPORTED_SYMBOL PyObject* # endif /* __cplusplus */ #endif |