https://gcc.gnu.org/g:29f300facc70c2be10d10112397a7690991e449e
commit r14-12310-g29f300facc70c2be10d10112397a7690991e449e Author: Jonathan Wakely <[email protected]> Date: Mon Nov 24 12:48:42 2025 +0000 libstdc++: Fix pretty printers for std::list The logs for xmethods.exp show that the std::list tests have never worked: gdb.error: No type named std::__cxx11::list<int, std::allocator<int> >::_Node.^M skipping: File "/home/jwakely/src/gcc/gcc/libstdc++-v3/testsuite/../python/libstdcxx/v6/xmethods.py", line 445, in match\r\nskipping: node_type = gdb.lookup_type(str(class_type) + '::_Node').pointer()\r\nskipping: ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\nskipping: gdb.error: No type named std::__cxx11::list<int, std::allocator<int> >::_Node.\r\nlist.gdb:11: Error in sourced command file:^M Error while looking for matching xmethod workers defined in Python.^M skipping: list.gdb:11: Error in sourced command file:\r\nskipping: Error while looking for matching xmethod workers defined in Python.\r\nUNSUPPORTED: libstdc++-xmethods/list.cc Because of the way the GDB tests treat errors as UNSUPPORTED (so that the tests don't fail if the version of GDB is too old to support xmethods) we were not getting any FAIL, even though the tests were broken. The std::list type does not have a nested _Node type, it only has _Node_ptr. Instead of looking up _Node and then getting a pointer to that type, just look up _Node_ptr instead. libstdc++-v3/ChangeLog: * python/libstdcxx/v6/xmethods.py (ListMethodsMatcher.match): Fix lookup for node type. (cherry picked from commit 39cd9fd2404fe51eabe7587392dad4819fcc2ca8) Diff: --- libstdc++-v3/python/libstdcxx/v6/xmethods.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libstdc++-v3/python/libstdcxx/v6/xmethods.py b/libstdc++-v3/python/libstdcxx/v6/xmethods.py index 7f671d367235..692db5f58f66 100644 --- a/libstdc++-v3/python/libstdcxx/v6/xmethods.py +++ b/libstdc++-v3/python/libstdcxx/v6/xmethods.py @@ -442,7 +442,7 @@ class ListMethodsMatcher(gdb.xmethod.XMethodMatcher): if method is None or not method.enabled: return None val_type = class_type.template_argument(0) - node_type = gdb.lookup_type(str(class_type) + '::_Node').pointer() + node_type = gdb.lookup_type(str(class_type) + '::_Node_ptr') return method.worker_class(val_type, node_type) # Xmethods for std::vector
