Print environment when dumping arch triple

Summary: Print environment from triple if it exists.

Reviewers: tfiala, clayborg

Subscribers: lldb-commits, sas

Differential Revision: http://reviews.llvm.org/D18620

Change by Francis Ricci <fjricci@fb.com>

llvm-svn: 265420
diff --git a/lldb/source/Core/ArchSpec.cpp b/lldb/source/Core/ArchSpec.cpp
index ecbd884..5ac0479 100644
--- a/lldb/source/Core/ArchSpec.cpp
+++ b/lldb/source/Core/ArchSpec.cpp
@@ -1565,10 +1565,14 @@
     llvm::StringRef arch_str = triple.getArchName();
     llvm::StringRef vendor_str = triple.getVendorName();
     llvm::StringRef os_str = triple.getOSName();
+    llvm::StringRef environ_str = triple.getEnvironmentName();
 
     s.Printf("%s-%s-%s",
              arch_str.empty() ? "*" : arch_str.str().c_str(),
              vendor_str.empty() ? "*" : vendor_str.str().c_str(),
              os_str.empty() ? "*" : os_str.str().c_str()
              );
+
+    if (!environ_str.empty())
+        s.Printf("-%s", environ_str.str().c_str());
 }