tree b136d3bed2fc00e73286158b501a7c9fe38090f3
parent 22dc27b9fa46b20aca4f5982979681a858a97284
author Chih-Hung Hsieh <chh@google.com> 1520635397 -0800
committer Chih-Hung Hsieh <chh@google.com> 1523919615 -0700

Use ld when lld fails

* Android's clang lld link rules do not work with the special link order of
  libunwind_llvm yet.

Bug: 78118944
Test: make checkbuild and boot
Change-Id: Ife9707f111dfd24cb84b56754a4fc3f826f722c4