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-rw-r--r--gdb/testsuite/gdb.cp/pretty-print.py82
1 files changed, 82 insertions, 0 deletions
diff --git a/gdb/testsuite/gdb.cp/pretty-print.py b/gdb/testsuite/gdb.cp/pretty-print.py
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+++ b/gdb/testsuite/gdb.cp/pretty-print.py
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+# Copyright (C) 2008-2025 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Reduced copy of /usr/share/gcc-15/python/libstdcxx/v6/printers.py.
+
+import gdb
+import gdb.printing
+import gdb.types
+
+
+class FilteringTypePrinter(object):
+
+ def __init__(self, template, name, targ1=None):
+ self._template = template
+ self.name = name
+ self._targ1 = targ1
+ self.enabled = True
+
+ class _recognizer(object):
+ def __init__(self, template, name, targ1):
+ self._template = template
+ self.name = name
+ self._targ1 = targ1
+ self._type_obj = None
+
+ def recognize(self, type_obj):
+ if type_obj.tag is None:
+ return None
+
+ if self._type_obj is None:
+ if self._targ1 is not None:
+ s = "{}<{}".format(self._template, self._targ1)
+ if not type_obj.tag.startswith(s):
+ return None
+ elif not type_obj.tag.startswith(self._template):
+ return None
+
+ try:
+ self._type_obj = gdb.lookup_type(self.name).strip_typedefs()
+ except:
+ pass
+
+ if self._type_obj is None:
+ return None
+
+ t1 = gdb.types.get_basic_type(self._type_obj)
+ t2 = gdb.types.get_basic_type(type_obj)
+ if t1 == t2:
+ return self.name
+
+ if self._template.split("::")[-1] == "basic_string":
+ s1 = self._type_obj.tag.replace("__cxx11::", "")
+ s2 = type_obj.tag.replace("__cxx11::", "")
+ if s1 == s2:
+ return self.name
+
+ return None
+
+ def instantiate(self):
+ return self._recognizer(self._template, self.name, self._targ1)
+
+
+def add_one_type_printer(obj, template, name, targ1=None):
+ printer = FilteringTypePrinter("std::" + template, "std::" + name, targ1)
+ gdb.types.register_type_printer(obj, printer)
+
+
+def register_type_printers(obj):
+ for ch in (("", "char"),):
+ add_one_type_printer(obj, "__cxx11::basic_string", ch[0] + "string", ch[1])