commit 1ea3c286b3a371d7903b4ccf8a253577a9bde8d1
author Jiong Wang <jiong.wang@arm.com> Thu Jun 15 10:35:28 2017 +0100
committer Rahul Chaudhry <rahulchaudhry@google.com> Wed Oct 11 10:55:00 2017 -0700
tree 0d169501e9f73bb7494dc5e6f137c38338618d04
parent 53dd00a1a34ebf5251f6210d778768b4157c5e11

gold: don't install branch-to-stub for TLS relaxed ERRATUM 843419 sequences on AArch64

TLS relaxation may change erratum 843419 sequences that those offending ADRP
instructions actually transformed into other instructions in which case there
is erratum 843419 risk anymore that we should avoid installing unnecessary
branch-to-stub.

        * aarch64.cc (Insn_utilities::is_mrs_tpidr_el0): New method.
        (AArch64_relobj<size, big_endian>::try_fix_erratum_843419_optimized):
        Return ture for some TLS relaxed sequences.

This change is backport of commit 37de058ab2e9619fbb6dea52ec2773a5d65619c4
  - https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=37de058ab2e9619fbb6dea52ec2773a5d65619c4
to binutils-2.27.

Change-Id: I47a89d94ff8a0838b3d2ff9be41d9e98bfd59e85