gdb/gdb-fix-python37-breakage.p...

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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
From: Paul Koning <paul_koning@dell.com>
Date: Fri, 8 Jun 2018 13:26:36 -0400
Subject: gdb-fix-python37-breakage.patch
FileName: gdb-fix-python37-breakage.patch
;; Fix build breakage with Python 3.7
;; RHBZ #1577396
Fix build issue with Python 3.7
Originally reported in
https://bugzilla.redhat.com/show_bug.cgi?id=1577396 -- gdb build fails
with Python 3.7 due to references to a Python internal function whose
declaration changed in 3.7.
gdb/ChangeLog
2018-06-08 Paul Koning <paul_koning@dell.com>
PR gdb/23252
* python/python.c (do_start_initialization):
Avoid call to internal Python API.
(init__gdb_module): New function.
diff --git a/gdb/python/python.c b/gdb/python/python.c
--- a/gdb/python/python.c
+++ b/gdb/python/python.c
@@ -1810,6 +1810,17 @@ finalize_python (void *ignore)
restore_active_ext_lang (previous_active);
}
+#ifdef IS_PY3K
+/* This is called via the PyImport_AppendInittab mechanism called
+ during initialization, to make the built-in _gdb module known to
+ Python. */
+PyMODINIT_FUNC
+init__gdb_module (void)
+{
+ return PyModule_Create (&python_GdbModuleDef);
+}
+#endif
+
static bool
do_start_initialization ()
{
@@ -1850,6 +1861,9 @@ do_start_initialization ()
remain alive for the duration of the program's execution, so
it is not freed after this call. */
Py_SetProgramName (progname_copy);
+
+ /* Define _gdb as a built-in module. */
+ PyImport_AppendInittab ("_gdb", init__gdb_module);
#else
Py_SetProgramName (progname.release ());
#endif
@@ -1859,9 +1873,7 @@ do_start_initialization ()
PyEval_InitThreads ();
#ifdef IS_PY3K
- gdb_module = PyModule_Create (&python_GdbModuleDef);
- /* Add _gdb module to the list of known built-in modules. */
- _PyImport_FixupBuiltin (gdb_module, "_gdb");
+ gdb_module = PyImport_ImportModule ("_gdb");
#else
gdb_module = Py_InitModule ("_gdb", python_GdbMethods);
#endif