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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>I am attempting to port an operating system project to use Clang/LLVM instead of GCC, but I’m having issues with Compiler-RT. Right now, the OS is being cross-compiled on an x86_64 host targeting ARMv7a. I built the LLVM toolchain according to the instructions, though I limited the supported targets to arm, x86, and x86_64 to reduce compilation time. I’m finding that compilation proceeds fine but fails at the linking stage due to missing compiler builtins. When I examined the build log for the LLVM toolchain, I found that Compiler-RT was only being built for x86_64. So, as a stopgap, I’ve started linking against the existing cross-compiled libgcc to fill in the gaps. However, I’m trying to find out what I need to do to cross-compile Compiler-RT’s builtins library for ARMv7 so I can use it to replace libgcc. Any help here would be appreciated.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>Kev Kitchens<o:p></o:p></p></div></body></html>