[Bug localedata/14594] New: Testing a mangled pointer results in initializer not being called
law at redhat dot com
Wed Sep 19 15:50:00 GMT 2012
Bug #: 14594
Summary: Testing a mangled pointer results in initializer not
If a gconv module's init function has an address that is the same as the
pointer guard value, then the gconv module's init function will not be called.
The problem is find_module tests the *mangled* pointer against NULL and if that
test is false, then the initializer is called.
Obviously with the mangling function being a simple xor, if the function's
address is the same as the pointer guard, the mangled value will be zero and
the initializer doesn't get called.
Inspection shows similar problems gconv_db.c. There's also an instance in
btowc.c, but in that case the test is just controlling an optimization and as
far as I can tell doesn't result in incorrect operation.
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