Export functions used in downcalls

Author: msimacek

graalpython/com.oracle.graal.python.cext/src/bytesobject.c

@@ -2839,8 +2839,8 @@ _Py_COMP_DIAG_POP
 }
 #endif // GraalPy change
 
-// GraalPy change: different signature, uses C array instead of bytes
-PyObject *
+// GraalPy change: export for downcall, uses C array instead of bytes
+PyAPI_FUNC(PyObject *)
 bytes_subtype_new(PyTypeObject *type, int8_t* contents, Py_ssize_t n) {
     // GraalPy change: different implementation
     PyObject* bytes = type->tp_alloc(type, n);

graalpython/com.oracle.graal.python.cext/src/exceptions.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2018, 2023, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2018, 2024, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * The Universal Permissive License (UPL), Version 1.0
@@ -52,7 +52,8 @@ void initialize_exceptions() {
 #undef EXCEPTION
 }
 
-PyObject* exception_subtype_new(PyTypeObject *type, PyObject *args) {
+PyAPI_FUNC(PyObject *)
+exception_subtype_new(PyTypeObject *type, PyObject *args) {
     PyBaseExceptionObject *self;
 
     self = (PyBaseExceptionObject *)type->tp_alloc(type, 0);

graalpython/com.oracle.graal.python.cext/src/memoryobject.c

@@ -3320,11 +3320,15 @@ PyTypeObject PyMemoryView_Type = {
 
 // GraalPy additions
 /* called from memoryview implementation to do pointer arithmetics currently not possible from Java */
-int8_t* truffle_add_suboffset(int8_t *ptr, Py_ssize_t offset, Py_ssize_t suboffset) {
+PyAPI_FUNC(int8_t *)
+truffle_add_suboffset(int8_t *ptr, Py_ssize_t offset, Py_ssize_t suboffset)
+{
         return *(int8_t**)(ptr + offset) + suboffset;
 }
 
-PyObject* PyTruffle_MemoryViewFromObject(PyObject *v, int flags) {
+PyAPI_FUNC(PyObject *)
+PyTruffle_MemoryViewFromObject(PyObject *v, int flags)
+{
     if (PyObject_CheckBuffer(v)) {
         Py_buffer* buffer = malloc(sizeof(Py_buffer));
         if (PyObject_GetBuffer(v, buffer, flags) < 0) {
@@ -3364,7 +3368,9 @@ PyObject* PyTruffle_MemoryViewFromObject(PyObject *v, int flags) {
 }
 
 /* Release buffer struct allocated in PyTruffle_MemoryViewFromObject */
-void PyTruffle_ReleaseBuffer(Py_buffer* buffer) {
+PyAPI_FUNC(void)
+PyTruffle_ReleaseBuffer(Py_buffer* buffer)
+{
     if (buffer->obj != NULL) {
         PyBufferProcs *pb;
         pb = Py_TYPE(buffer->obj)->tp_as_buffer;

graalpython/com.oracle.graal.python.cext/src/modsupport.c

@@ -68,7 +68,7 @@ static int getbuffer(PyObject *arg, Py_buffer *view, const char **errmsg) {
     return 0;
 }
 
-int get_buffer_r(PyObject *arg, Py_buffer *view) {
+PyAPI_FUNC(int) get_buffer_r(PyObject *arg, Py_buffer *view) {
     if (PyObject_GetBuffer(arg, view, PyBUF_SIMPLE) != 0) {
         return -1;
     }
@@ -79,7 +79,7 @@ int get_buffer_r(PyObject *arg, Py_buffer *view) {
     return 0;
 }
 
-int get_buffer_rw(PyObject *arg, Py_buffer *view) {
+PyAPI_FUNC(int) get_buffer_rw(PyObject *arg, Py_buffer *view) {
     if (PyObject_GetBuffer(arg, view, PyBUF_WRITABLE) != 0) {
         PyErr_Clear();
         return -1;
@@ -91,7 +91,7 @@ int get_buffer_rw(PyObject *arg, Py_buffer *view) {
     return 0;
 }
 
-Py_ssize_t convertbuffer(PyObject *arg, const void **p) {
+PyAPI_FUNC(Py_ssize_t) convertbuffer(PyObject *arg, const void **p) {
     PyBufferProcs *pb = Py_TYPE(arg)->tp_as_buffer;
     Py_ssize_t count;
     Py_buffer view;

graalpython/com.oracle.graal.python.cext/src/tupleobject.c

@@ -758,7 +758,7 @@ tuple_vectorcall(PyObject *type, PyObject * const*args,
 
 PyObject* PyTruffle_Tuple_Alloc(PyTypeObject* cls, Py_ssize_t nitems);
 
-PyObject * // GraalPy change: not static
+PyAPI_FUNC(PyObject *) // GraalPy change: export for downcall
 tuple_subtype_new(PyTypeObject *type, PyObject *iterable)
 {
     // GraalPy change: different implementation

graalpython/com.oracle.graal.python.cext/src/unicodeobject.c

@@ -14461,7 +14461,7 @@ unicode_new_impl(PyTypeObject *type, PyObject *x, const char *encoding,
 }
 #endif // GraalPy change
 
-PyObject * // GraalPy change: not static
+PyAPI_FUNC(PyObject *) // GraalPy change: export for downcall
 unicode_subtype_new(PyTypeObject *type, PyObject *unicode)
 {
     // GraalPy change: temporarily define struct access macros