re PR libstdc++/68448 (Python Pretty Printers get disabled on libstdc++ reload by GDB)

	PR libstdc++/68448
	* python/hook.in: Call register_libstdcxx_printers.
	* python/libstdcxx/v6/__init__.py: Wrap it to
	register_libstdcxx_printers.

From-SVN: r230669

2 files changed, 12 insertions, 8 deletions

diff --git a/libstdc++-v3/python/hook.in b/libstdc++-v3/python/hook.in
index 07fe4c62417..703b6a74488 100644
--- a/libstdc++-v3/python/hook.in
+++ b/libstdc++-v3/python/hook.in
@@ -55,4 +55,7 @@ if gdb.current_objfile () is not None:
     if not dir_ in sys.path:
         sys.path.insert(0, dir_)
 
-import libstdcxx.v6
+# Call a function as a plain import would not execute body of the included file
+# on repeated reloads of this object file.
+from libstdcxx.v6 import register_libstdcxx_printers
+register_libstdcxx_printers(gdb.current_objfile())
diff --git a/libstdc++-v3/python/libstdcxx/v6/__init__.py b/libstdc++-v3/python/libstdcxx/v6/__init__.py
index de3aa728ceb..d8e060c809d 100644
--- a/libstdc++-v3/python/libstdcxx/v6/__init__.py
+++ b/libstdc++-v3/python/libstdcxx/v6/__init__.py
@@ -15,10 +15,6 @@
 
 import gdb
 
-# Load the pretty-printers.
-from .printers import register_libstdcxx_printers
-register_libstdcxx_printers(gdb.current_objfile())
-
 # Load the xmethods if GDB supports them.
 def gdb_has_xmethods():
     try:
@@ -27,6 +23,11 @@ def gdb_has_xmethods():
     except ImportError:
         return False
 
-if gdb_has_xmethods():
-    from .xmethods import register_libstdcxx_xmethods
-    register_libstdcxx_xmethods(gdb.current_objfile())
+def register_libstdcxx_printers(obj):
+    # Load the pretty-printers.
+    from .printers import register_libstdcxx_printers
+    register_libstdcxx_printers(obj)
+
+    if gdb_has_xmethods():
+        from .xmethods import register_libstdcxx_xmethods
+        register_libstdcxx_xmethods(obj)