Leslie Zhai via llvm-dev
2017-Aug-01 09:01 UTC
[llvm-dev] How to migrate Target option PositionIndependentExecutable for LLVM v3.9?
Hi Xlous, 感谢您的回复！ 在 2017年08月01日 16:57, Xlous zeng 写道:> You can use following c++ code ship to determines what version of > Clang you used currently.yes! https://github.com/xiangzhai/dragonegg/blob/gcc-6_3-branch/include/dragonegg/Internals.h#L33 but I prefer to find out the "equivalent" just like migrate x86_sse2_psrl_dq for LLVM v3.9 :)> > #if defined(__clang__) > cout<<__clang_major__<<" "<<__clang_minor__<<" > "<<__clang_patchlevel__<<endl; > > >> 在 2017年7月24日，下午12:50，Leslie Zhai via llvm-dev >> <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> 写道： >> >> Hi LLVM developers, >> >> I am migrating dragonegg to GCC v6.8 and LLVM v3.9 right now >> https://github.com/xiangzhai/dragonegg >> >> There was PositionIndependentExecutable Target option before LLVM >> v3.9 >> https://github.com/llvm-mirror/llvm/blob/release_38/include/llvm/Target/TargetOptions.h#L181 >> but after LLVM v3.9 https://reviews.llvm.org/D19733 it suggested to >> use PIELevel module flags instead of Target option >> PositionIndependentExecutable. so could I migrate it like this? >> >> >> #if LLVM_VERSION_CODE > LLVM_VERSION(3, 8) >> TheModule->setPIELevel(PIELevel::Large); >> #else >> Options.PositionIndependentExecutable = flag_pie; // -fPIE >> #endif >> >> >> please give me some suggestion, thanks a lot! >> >> -- >> Regards, >> Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/ >> � >> >> _______________________________________________ >> LLVM Developers mailing list >> llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org> >> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev >-- Regards, Leslie Zhai - a LLVM developer https://reviews.llvm.org/p/xiangzhai/