1 files changed, 70 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Support/Unix/Host.inc b/contrib/llvm/lib/Support/Unix/Host.inc
new file mode 100644
index 0000000..1e438e7
--- /dev/null
+++ b/contrib/llvm/lib/Support/Unix/Host.inc
@@ -0,0 +1,70 @@
+ //===- llvm/Support/Unix/Host.inc -------------------------------*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements the UNIX Host support.
+//
+//===----------------------------------------------------------------------===//
+
+//===----------------------------------------------------------------------===//
+//=== WARNING: Implementation here must contain only generic UNIX code that
+//===          is guaranteed to work on *all* UNIX variants.
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Config/config.h"
+#include "llvm/ADT/StringRef.h"
+#include "Unix.h"
+#include <sys/utsname.h>
+#include <cctype>
+#include <string>
+#include <cstdlib> // ::getenv
+
+using namespace llvm;
+
+static std::string getOSVersion() {
+  struct utsname info;
+
+  if (uname(&info))
+    return "";
+
+  return info.release;
+}
+
+std::string sys::getHostTriple() {
+#ifdef __FreeBSD__
+  return LLVM_HOSTTRIPLE;
+#else
+  // FIXME: Derive directly instead of relying on the autoconf generated
+  // variable.
+
+  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;
+
+  std::string Triple(Arch);
+  Triple += '-';
+  Triple += ArchSplit.second;
+
+  // Force i<N>86 to i386.
+  if (Triple[0] == 'i' && isdigit(Triple[1]) &&
+      Triple[2] == '8' && Triple[3] == '6')
+    Triple[1] = '3';
+
+  // On darwin, we want to update the version to match that of the
+  // host.
+  std::string::size_type DarwinDashIdx = Triple.find("-darwin");
+  if (DarwinDashIdx != std::string::npos) {
+    Triple.resize(DarwinDashIdx + strlen("-darwin"));
+    Triple += getOSVersion();
+  }
+
+  return Triple;
+#endif
+}