gh-107211: No longer export internal functions (3) (#107215)

No longer export these 14 internal C API functions:

* _PySys_Audit()
* _PySys_SetAttr()
* _PyTraceBack_FromFrame()
* _PyTraceBack_Print_Indented()
* _PyUnicode_FormatAdvancedWriter()
* _PyUnicode_ScanIdentifier()
* _PyWarnings_Init()
* _Py_DumpASCII()
* _Py_DumpDecimal()
* _Py_DumpHexadecimal()
* _Py_DumpTraceback()
* _Py_DumpTracebackThreads()
* _Py_WriteIndent()
* _Py_WriteIndentedMargin()

Author: vstinner

Include/internal/pycore_sysmodule.h

@@ -8,7 +8,7 @@ extern "C" {
 #  error "this header requires Py_BUILD_CORE define"
 #endif
 
-PyAPI_FUNC(int) _PySys_Audit(
+extern int _PySys_Audit(
     PyThreadState *tstate,
     const char *event,
     const char *argFormat,
@@ -18,7 +18,7 @@ PyAPI_FUNC(int) _PySys_Audit(
    PyAPI_FUNC() to not export the symbol. */
 extern void _PySys_ClearAuditHooks(PyThreadState *tstate);
 
-PyAPI_FUNC(int) _PySys_SetAttr(PyObject *, PyObject *);
+extern int _PySys_SetAttr(PyObject *, PyObject *);
 
 extern int _PySys_ClearAttrString(PyInterpreterState *interp,
                                   const char *name, int verbose);

Include/internal/pycore_time.h

@@ -324,10 +324,12 @@ extern int _PyTime_GetPerfCounterWithInfo(
 
 // Create a deadline.
 // Pseudo code: _PyTime_GetMonotonicClock() + timeout.
+// Export for '_ssl' shared extension.
 PyAPI_FUNC(_PyTime_t) _PyDeadline_Init(_PyTime_t timeout);
 
 // Get remaining time from a deadline.
 // Pseudo code: deadline - _PyTime_GetMonotonicClock().
+// Export for '_ssl' shared extension.
 PyAPI_FUNC(_PyTime_t) _PyDeadline_Get(_PyTime_t deadline);
 
 

Include/internal/pycore_traceback.h

@@ -25,7 +25,7 @@ extern "C" {
 
    This function is signal safe. */
 
-PyAPI_FUNC(void) _Py_DumpTraceback(
+extern void _Py_DumpTraceback(
     int fd,
     PyThreadState *tstate);
 
@@ -52,7 +52,7 @@ PyAPI_FUNC(void) _Py_DumpTraceback(
 
    This function is signal safe. */
 
-PyAPI_FUNC(const char*) _Py_DumpTracebackThreads(
+extern const char* _Py_DumpTracebackThreads(
     int fd,
     PyInterpreterState *interp,
     PyThreadState *current_tstate);
@@ -64,23 +64,23 @@ PyAPI_FUNC(const char*) _Py_DumpTracebackThreads(
    string which is not ready (PyUnicode_WCHAR_KIND).
 
    This function is signal safe. */
-PyAPI_FUNC(void) _Py_DumpASCII(int fd, PyObject *text);
+extern void _Py_DumpASCII(int fd, PyObject *text);
 
 /* Format an integer as decimal into the file descriptor fd.
 
    This function is signal safe. */
-PyAPI_FUNC(void) _Py_DumpDecimal(
+extern void _Py_DumpDecimal(
     int fd,
     size_t value);
 
 /* Format an integer as hexadecimal with width digits into fd file descriptor.
    The function is signal safe. */
-PyAPI_FUNC(void) _Py_DumpHexadecimal(
+extern void _Py_DumpHexadecimal(
     int fd,
     uintptr_t value,
     Py_ssize_t width);
 
-PyAPI_FUNC(PyObject*) _PyTraceBack_FromFrame(
+extern PyObject* _PyTraceBack_FromFrame(
     PyObject *tb_next,
     PyFrameObject *frame);
 
@@ -89,11 +89,11 @@ PyAPI_FUNC(PyObject*) _PyTraceBack_FromFrame(
 
 /* Write the traceback tb to file f. Prefix each line with
    indent spaces followed by the margin (if it is not NULL). */
-PyAPI_FUNC(int) _PyTraceBack_Print_Indented(
+extern int _PyTraceBack_Print_Indented(
     PyObject *tb, int indent, const char* margin,
     const char *header_margin, const char *header, PyObject *f);
-PyAPI_FUNC(int) _Py_WriteIndentedMargin(int, const char*, PyObject *);
-PyAPI_FUNC(int) _Py_WriteIndent(int, PyObject *);
+extern int _Py_WriteIndentedMargin(int, const char*, PyObject *);
+extern int _Py_WriteIndent(int, PyObject *);
 
 #ifdef __cplusplus
 }

Include/internal/pycore_tracemalloc.h

@@ -117,14 +117,16 @@ struct _tracemalloc_runtime_state {
     }
 
 
-/* Get the traceback where a memory block was allocated.
-
-   Return a tuple of (filename: str, lineno: int) tuples.
-
-   Return None if the tracemalloc module is disabled or if the memory block
-   is not tracked by tracemalloc.
-
-   Raise an exception and return NULL on error. */
+// Get the traceback where a memory block was allocated.
+//
+// Return a tuple of (filename: str, lineno: int) tuples.
+//
+// Return None if the tracemalloc module is disabled or if the memory block
+// is not tracked by tracemalloc.
+//
+// Raise an exception and return NULL on error.
+//
+// Export for '_testinternalcapi' shared extension.
 PyAPI_FUNC(PyObject*) _PyTraceMalloc_GetTraceback(
     unsigned int domain,
     uintptr_t ptr);

Include/internal/pycore_typeobject.h

@@ -114,6 +114,7 @@ extern static_builtin_state * _PyStaticType_GetState(PyInterpreterState *, PyTyp
 extern void _PyStaticType_ClearWeakRefs(PyInterpreterState *, PyTypeObject *type);
 extern void _PyStaticType_Dealloc(PyInterpreterState *, PyTypeObject *);
 
+// Export for 'math' shared extension
 PyAPI_FUNC(PyObject *) _PyType_GetDict(PyTypeObject *);
 extern PyObject * _PyType_GetBases(PyTypeObject *type);
 extern PyObject * _PyType_GetMRO(PyTypeObject *type);

Include/internal/pycore_unicodeobject.h

@@ -187,7 +187,7 @@ _PyUnicodeWriter_Dealloc(_PyUnicodeWriter *writer);
 
 /* Format the object based on the format_spec, as defined in PEP 3101
    (Advanced String Formatting). */
-PyAPI_FUNC(int) _PyUnicode_FormatAdvancedWriter(
+extern int _PyUnicode_FormatAdvancedWriter(
     _PyUnicodeWriter *writer,
     PyObject *obj,
     PyObject *format_spec,
@@ -245,8 +245,9 @@ extern PyObject* _PyUnicode_DecodeUnicodeEscapeStateful(
     const char *errors,     /* error handling */
     Py_ssize_t *consumed);  /* bytes consumed */
 
-/* Helper for PyUnicode_DecodeUnicodeEscape that detects invalid escape
-   chars. */
+// Helper for PyUnicode_DecodeUnicodeEscape that detects invalid escape
+// chars.
+// Export for test_peg_generator.
 PyAPI_FUNC(PyObject*) _PyUnicode_DecodeUnicodeEscapeInternal(
     const char *string,     /* Unicode-Escape encoded string */
     Py_ssize_t length,      /* size of string */
@@ -369,6 +370,7 @@ PyAPI_FUNC(int) _PyUnicode_Equal(PyObject *, PyObject *);
 extern int _PyUnicode_WideCharString_Converter(PyObject *, void *);
 extern int _PyUnicode_WideCharString_Opt_Converter(PyObject *, void *);
 
+// Export for test_peg_generator
 PyAPI_FUNC(Py_ssize_t) _PyUnicode_ScanIdentifier(PyObject *);
 
 /* --- Runtime lifecycle -------------------------------------------------- */

Include/internal/pycore_warnings.h

@@ -19,7 +19,7 @@ struct _warnings_runtime_state {
 
 extern int _PyWarnings_InitState(PyInterpreterState *interp);
 
-PyAPI_FUNC(PyObject*) _PyWarnings_Init(void);
+extern PyObject* _PyWarnings_Init(void);
 
 extern void _PyErr_WarnUnawaitedCoroutine(PyObject *coro);
 extern void _PyErr_WarnUnawaitedAgenMethod(PyAsyncGenObject *agen, PyObject *method);