LLD uses the argv[0] to get the host system information.
In standalone toolchain used by Simplechrome, real lld becomes
lld.elf, so the LLD cannot get the host system informaction
and dies. see crbug.com/701659

diff --git a/lld/tools/lld/lld.cpp b/lld/tools/lld/lld.cpp
index 37ef260495e..ecabfbb1898 100644
--- a/lld/tools/lld/lld.cpp
+++ b/lld/tools/lld/lld.cpp
@@ -57,6 +57,7 @@ LLVM_ATTRIBUTE_NORETURN static void die(const Twine &s) {
 static Flavor getFlavor(StringRef s) {
   return StringSwitch<Flavor>(s)
       .CasesLower("ld", "ld.lld", "gnu", Gnu)
+      .CasesLower("lld.elf", "lld.real", "lld.real.elf", "gnu", Gnu)
       .CasesLower("wasm", "ld-wasm", Wasm)
       .CaseLower("link", WinLink)
       .CasesLower("ld64", "ld64.lld", "darwin", Darwin)