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* align stack properly for calling global ctors/dtors on x86[_64]Rich Felker2013-06-032-0/+4
| | | | | | failure to do so was causing crashes on x86_64 when ctors used SSE, which was first observed when ctors called variadic functions due to the SSE prologue code inserted into every variadic function.
* remove some junk from x86_64 start filesRich Felker2012-05-022-4/+0
| | | | | | | | | looks like nik copied these "extra arguments" from the i386 code. they're not actually arguments there, just 1-byte instructions to make sure the stack is aligned to 16 bytes after all the other arguments are pushed. since each push is 8 bytes on x86_64, they happened to have no effect here, but their presence is confusing and a minor waste of space.
* PIE support for x86_64 (untested)Rich Felker2012-05-021-0/+18
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* add support for init/finit (constructors and destructors)Rich Felker2012-02-063-3/+17
| | | | | | | | | | this is mainly in hopes of supporting c++ (not yet possible for other reasons) but will also help applications/libraries which use (and more often, abuse) the gcc __attribute__((__constructor__)) feature in "C" code. x86_64 and arm versions of the new startup asm are untested and may have minor problems.
* Port musl to x86-64. One giant commit!Nicholas J. Kain2011-02-151-0/+16