Avoid the need to load refnanny module using RTLD_GLOBAL

Cython/Compiler/ModuleNode.py

@@ -1585,7 +1585,12 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
         code.putln("PyObject* %s;" % Naming.retval_cname)
         tempdecl_code = code.insertion_point()
 
-        code.put_setup_refcount_context(header3)
+        code.putln("#ifdef CYTHON_REFNANNY")
+        code.putln("void* __pyx_refchk = NULL;")
+        code.putln("__Pyx_Refnanny = (__Pyx_RefnannyAPIStruct*) PyCObject_Import((char *)\"refnanny\", (char *)\"RefnannyAPI\");")
+        code.putln("if (!__Pyx_Refnanny) Py_FatalError(\"failed to import refnanny module\");")
+        code.putln("__pyx_refchk = __Pyx_Refnanny->NewContext(\"%s\", __LINE__);"% header3)
+        code.putln("#endif")
 
         code.putln("%s = PyTuple_New(0); %s" % (Naming.empty_tuple, code.error_goto_if_null(Naming.empty_tuple, self.pos)));
 
@@ -2323,27 +2328,29 @@ bad:
         
 refcount_utility_code = UtilityCode(proto="""
 #ifdef CYTHON_REFNANNY
-__PYX_EXTERN_C void __Pyx_Refnanny_INCREF(void*, PyObject*, int);
-__PYX_EXTERN_C void __Pyx_Refnanny_GOTREF(void*, PyObject*, int);
-__PYX_EXTERN_C void __Pyx_Refnanny_GIVEREF(void*, PyObject*, int);
-__PYX_EXTERN_C void __Pyx_Refnanny_INCREF(void*, PyObject*, int);
-__PYX_EXTERN_C void __Pyx_Refnanny_DECREF(void*, PyObject*, int);
-__PYX_EXTERN_C void* __Pyx_Refnanny_NewContext(char*, int);
-__PYX_EXTERN_C int __Pyx_Refnanny_FinishContext(void*);
-#define __Pyx_INCREF(r) __Pyx_Refnanny_INCREF(__pyx_refchk, r, __LINE__)
-#define __Pyx_GOTREF(r) __Pyx_Refnanny_GOTREF(__pyx_refchk, r, __LINE__)
-#define __Pyx_GIVEREF(r) __Pyx_Refnanny_GIVEREF(__pyx_refchk, r, __LINE__)
-#define __Pyx_DECREF(r) __Pyx_Refnanny_DECREF(__pyx_refchk, r, __LINE__)
+typedef struct {
+  void (*INCREF)(void*, PyObject*, int);
+  void (*DECREF)(void*, PyObject*, int);
+  void (*GOTREF)(void*, PyObject*, int);
+  void (*GIVEREF)(void*, PyObject*, int);
+  void* (*NewContext)(const char*, int);
+  int (*FinishContext)(void*);
+} __Pyx_RefnannyAPIStruct;
+static __Pyx_RefnannyAPIStruct* __Pyx_Refnanny = NULL;
+#define __Pyx_INCREF(r) __Pyx_Refnanny->INCREF(__pyx_refchk, (r), __LINE__)
+#define __Pyx_DECREF(r) __Pyx_Refnanny->DECREF(__pyx_refchk, (r), __LINE__)
 #define __Pyx_XDECREF(r) if((r) == NULL) ; else __Pyx_DECREF(r)
+#define __Pyx_GOTREF(r) __Pyx_Refnanny->GOTREF(__pyx_refchk, (r), __LINE__)
+#define __Pyx_GIVEREF(r) __Pyx_Refnanny->GIVEREF(__pyx_refchk, (r), __LINE__)
 #define __Pyx_SetupRefcountContext(name) \
-  void* __pyx_refchk = __Pyx_Refnanny_NewContext((char*)name, __LINE__)
-#define __Pyx_FinishRefcountContext() __Pyx_Refnanny_FinishContext(__pyx_refchk)
+  void* __pyx_refchk = __Pyx_Refnanny->NewContext((name), __LINE__)
+#define __Pyx_FinishRefcountContext() __Pyx_Refnanny->FinishContext(__pyx_refchk)
 #else
 #define __Pyx_INCREF(r) Py_INCREF(r)
-#define __Pyx_GOTREF(r)
-#define __Pyx_GIVEREF(r)
 #define __Pyx_DECREF(r) Py_DECREF(r)
 #define __Pyx_XDECREF(r) Py_XDECREF(r)
+#define __Pyx_GOTREF(r)
+#define __Pyx_GIVEREF(r)
 #define __Pyx_SetupRefcountContext(name)
 #define __Pyx_FinishRefcountContext() 0
 #endif /* CYTHON_REFNANNY */

Cython/Runtime/refnanny.pyx

@@ -54,7 +54,7 @@ class RefnannyContext(object):
 #            print self.errors
             raise RefnannyException("\n".join(self.errors))
 
-cdef public void* __Pyx_Refnanny_NewContext(char* funcname, int lineno) except NULL:
+cdef void* Refnanny_NewContext(char* funcname, int lineno) except NULL:
     if exc.PyErr_Occurred() != NULL:
         print "error flag set on newcontext?"
         return NULL
@@ -62,8 +62,8 @@ cdef public void* __Pyx_Refnanny_NewContext(char* funcname, int lineno) except N
     Py_INCREF(ctx)
     return <void*>ctx
 
-cdef public void __Pyx_Refnanny_GOTREF(void* ctx, void* p_obj, int lineno):
-    cdef exc.PyObject* type, *value, *tb
+cdef public void Refnanny_GOTREF(void* ctx, void* p_obj, int lineno):
+    cdef exc.PyObject* type = NULL, *value = NULL, *tb = NULL
     if ctx == NULL: return
     exc.PyErr_Fetch(&type, &value, &tb)
     try:
@@ -78,8 +78,8 @@ cdef public void __Pyx_Refnanny_GOTREF(void* ctx, void* p_obj, int lineno):
         Py_XDECREF(<object>tb)
         raise
 
-cdef public void __Pyx_Refnanny_GIVEREF(void* ctx, void* p_obj, int lineno):
-    cdef exc.PyObject* type, *value, *tb
+cdef public void Refnanny_GIVEREF(void* ctx, void* p_obj, int lineno):
+    cdef exc.PyObject* type = NULL, *value = NULL, *tb = NULL
     if ctx == NULL: return
     exc.PyErr_Fetch(&type, &value, &tb)
     try:
@@ -94,18 +94,18 @@ cdef public void __Pyx_Refnanny_GIVEREF(void* ctx, void* p_obj, int lineno):
         Py_XDECREF(<object>tb)
         raise
 
-cdef public void __Pyx_Refnanny_INCREF(void* ctx, void* obj, int lineno):
+cdef public void Refnanny_INCREF(void* ctx, void* obj, int lineno):
     if obj is not NULL: Py_INCREF(<object>obj)
-    __Pyx_Refnanny_GOTREF(ctx, obj, lineno)
+    Refnanny_GOTREF(ctx, obj, lineno)
     
-cdef public void __Pyx_Refnanny_DECREF(void* ctx, void* obj, int lineno):
+cdef public void Refnanny_DECREF(void* ctx, void* obj, int lineno):
     # GIVEREF raises exception if we hit 0
     # 
-    __Pyx_Refnanny_GIVEREF(ctx, obj, lineno)
+    Refnanny_GIVEREF(ctx, obj, lineno)
     if obj is not NULL: Py_DECREF(<object>obj)
     
-cdef public int __Pyx_Refnanny_FinishContext(void* ctx) except -1:
-    cdef exc.PyObject* type, *value, *tb
+cdef public int Refnanny_FinishContext(void* ctx) except -1:
+    cdef exc.PyObject* type = NULL, *value = NULL, *tb = NULL
     if ctx == NULL:
         assert False
     exc.PyErr_Fetch(&type, &value, &tb)
@@ -123,3 +123,25 @@ cdef public int __Pyx_Refnanny_FinishContext(void* ctx) except -1:
     return 0
 
     
+
+
+cdef extern from "Python.h":
+    object PyCObject_FromVoidPtr(void *, void (*)(void*))
+
+ctypedef struct RefnannyAPIStruct:
+  void (*INCREF)(void*, void*, int)
+  void (*DECREF)(void*, void*, int)
+  void (*GOTREF)(void*, void*, int)
+  void (*GIVEREF)(void*, void*, int)
+  void* (*NewContext)(char*, int) except NULL
+  int (*FinishContext)(void*) except -1
+
+cdef RefnannyAPIStruct api
+api.INCREF = Refnanny_INCREF
+api.DECREF =  Refnanny_DECREF
+api.GOTREF =  Refnanny_GOTREF
+api.GIVEREF = Refnanny_GIVEREF
+api.NewContext = Refnanny_NewContext
+api.FinishContext = Refnanny_FinishContext
+
+RefnannyAPI = PyCObject_FromVoidPtr(&api, NULL)