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libpython.py: defer call to gdb.lookup_type('PyUnicodeObject') 

The lookup fails at startup if Python is linked to a shared library.
This commit is contained in:
Victor Stinner 2011-12-08 00:08:22 +01:00
parent 1659b83b1d
commit 0c4fbff6a7
1 changed files with 6 additions and 1 deletions
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7
Tools/gdb/libpython.py
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@ -53,7 +53,8 @@
_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 @@ def char_width(self):
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