------- Additional Comments From jakub at redhat dot com 2009-06-12 19:10 ------- The problem with using normal symbol is that if some shared library calls such a symbol, the .got.plt slot in the shared library will contain address of the .plt slot in the binary and only its .got.plt will contain the resolved function that should be called, so in that (hopefully rare, IFUNC doesn't make as much sense in the binaries as it does in shared libraries and binary overriding symbols in shared libraries is also not so common) case calls from the shared library need to hop through two .plt slots. But I don't see other ways how to make pointer comparisons work in this case. Obviously if the binary doesn't take its address, using IFUNC symbol in the binary is just fine.
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