diff options
Diffstat (limited to 'lib/System/Unix/Host.inc')
| -rw-r--r-- | lib/System/Unix/Host.inc | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/lib/System/Unix/Host.inc b/lib/System/Unix/Host.inc index fb319fd..c76d6a4 100644 --- a/lib/System/Unix/Host.inc +++ b/lib/System/Unix/Host.inc @@ -16,7 +16,8 @@ //=== is guaranteed to work on *all* UNIX variants. //===----------------------------------------------------------------------===// -#include <llvm/Config/config.h> +#include "llvm/Config/config.h" +#include "llvm/ADT/StringRef.h" #include "Unix.h" #include <sys/utsname.h> #include <string> @@ -33,10 +34,47 @@ static std::string getOSVersion() { } std::string sys::getHostTriple() { - // FIXME: Derive more directly instead of relying on the autoconf - // generated variable. + // FIXME: Derive directly instead of relying on the autoconf generated + // variable. - std::string Triple = LLVM_HOSTTRIPLE; + StringRef HostTripleString(LLVM_HOSTTRIPLE); + std::pair<StringRef, StringRef> ArchSplit = HostTripleString.split('-'); + + // Normalize the arch, since the host triple may not actually match the host. + std::string Arch = ArchSplit.first; + + // It would be nice to do this in terms of llvm::Triple, but that is in + // Support which is layered above us. +#if defined(__x86_64__) + Arch = "x86_64"; +#elif defined(__i386__) + Arch = "i386"; +#elif defined(__ppc64__) + Arch = "powerpc64"; +#elif defined(__ppc__) + Arch = "powerpc"; +#elif defined(__arm__) + + // FIXME: We need to pick the right ARM triple (which involves querying the + // chip). However, for now this is most important for LLVM arch selection, so + // we only need to make sure to distinguish ARM and Thumb. +# if defined(__thumb__) + Arch = "thumb"; +# else + Arch = "arm"; +# endif + +#else + + // FIXME: When enough auto-detection is in place, this should just + // #error. Then at least the arch selection is done, and we only need the OS + // etc selection to kill off the use of LLVM_HOSTTRIPLE. + +#endif + + std::string Triple(Arch); + Triple += '-'; + Triple += ArchSplit.second; // Force i<N>86 to i386. if (Triple[0] == 'i' && isdigit(Triple[1]) && |
