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Hi, the patch caused regression on exceptions unwinding (e.g. `nptl/tst-cancelx6'). libgcc_s does not expect register numbers >= 17 and `rflags' used there # 49. It was found by Jakub on just `make -k check', very sorry I did not check it. Shouldn't libgcc be extended for the full x86_64 ABI register set of 67 regs? [ http://www.x86-64.org/documentation/abi.pdf ] But I expect the number is reduced regarding the usefulness vs. performance. Jan Proposed patch extending register set for libunwind, similiar for gcc? http://sourceware.org/bugzilla/show_bug.cgi?id=3590
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