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-rw-r--r--Tools/gdb/libpython.py7
1 files changed, 6 insertions, 1 deletions
diff --git a/Tools/gdb/libpython.py b/Tools/gdb/libpython.py
index 1e38c26..6972b9b 100644
--- a/Tools/gdb/libpython.py
+++ b/Tools/gdb/libpython.py
@@ -53,7 +53,8 @@ _type_size_t = gdb.lookup_type('size_t')
_type_unsigned_short_ptr = gdb.lookup_type('unsigned short').pointer()
_type_unsigned_int_ptr = gdb.lookup_type('unsigned int').pointer()
-_is_pep393 = 'data' in [f.name for f in gdb.lookup_type('PyUnicodeObject').target().fields()]
+# value computed later, see PyUnicodeObjectPtr.proxy()
+_is_pep393 = None
SIZEOF_VOID_P = _type_void_ptr.sizeof
@@ -1123,6 +1124,10 @@ class PyUnicodeObjectPtr(PyObjectPtr):
return _type_Py_UNICODE.sizeof
def proxyval(self, visited):
+ global _is_pep393
+ if _is_pep393 is None:
+ fields = gdb.lookup_type('PyUnicodeObject').target().fields()
+ _is_pep393 = 'data' in [f.name for f in fields]
if _is_pep393:
# Python 3.3 and newer
may_have_surrogates = False