[ppc32]: LEA() incompatible with secure_plt
tg at gmplib.org
tg at gmplib.org
Tue May 12 08:02:42 UTC 2015
Felix Janda <felix.janda at posteo.de> writes:
Hello,
LEA() in mpn/powerpc32/elf.m4 uses an idiom to obtain a pointer to the
GOT which is incompatible with the newer secure_plt linking model for
powerpc and makes binutils fall back to the older bss-plt (with rwx
PLT and GOT). See
http://sources.redhat.com/ml/binutils/2005-05/msg00391.html
http://www.sourceware.org/ml/binutils/2005-05/txt00011.txt
The attached patch (should still apply to the current version) uses
the idea from the second link to make LEA() work without an executable
GOT.
Sorry for the slow reply.
We'll take care of this for the next GMP release. Thanks for letting us
know about this ABI change!
--
Torbjörn
Please encrypt, key id 0xC8601622
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