Thanks for reporting this problem. As Ian said, one of the go library sources includes <cpuid.h>, and then expects to see an inline definition of that routine.
I poked around a little and it looks as though versions of clang prior to 5.0 do provide a definition of <cpuid.h>, but they don't define __get_cpuid_count -- that seems to have been added later in this commit <https://github.com/llvm-mirror/clang/commit/723acf9205420108ade64c216de7ca30181c7877> . Do you have a later version of clang that you could use as your build compiler (5.0 later)? Or could you use GCC instead? Either of these should take care of this problem. In you cmake invocation you'll want to use cmake ... -DCMAKE_ASM_COMPILER=/usr/bin/gcc \ -DCMAKE_CXX_COMPILER=/usr/bin/g++ \ -DCMAKE_C_COMPILER=/usr/bin/gcc \ Or equivalent. I will add a note to the FAQ on this, since others may also run into it. Thanks, Than On Sun, Dec 16, 2018 at 7:17 PM Ian Lance Taylor <i...@golang.org> wrote: > [ + thanm ] > > On Sat, Dec 15, 2018 at 6:56 AM <benj...@gmail.com> wrote: > > > > I'm trying to use the current gollvm build, but it seems there is a > symbol error. Probably that symbol is absent in the libgo release? > > Anyone had a similar problem or an idea how I can fix that? > > The libgo sources expect __get_cpuid_count to be defined by the > compiler intrinsics header <cpuid.h>. This is true for GCC. The > reference to the symbol is in libgo/go/internal/cpu/cpu_gccgo.c. > > Than: does the LLVM version of <cpuid.h> define __get_cpuid_count? If > not, I guess we need to tweak cpu_gccgo.c. > > Ian > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
