tree 1eb9a096c0a4e976ec2f9326d507644a43cd70e6
parent 59c2d8215671b44b55a89a8cccc8febf2615c934
author Daniel Kiss <daniel.kiss@arm.com> 1601387419 +0200
committer Copybara-Service <copybara-worker@google.com> 1604019961 -0700

[AArch64] Add v8.5 Branch Target Identification support.

The .note.gnu.property must be in the assembly file to indicate the
support for BTI otherwise BTI will be disabled for the whole library.
__unw_getcontext and libunwind::Registers_arm64::jumpto() may be called
indirectly therefore they should start with a landing pad.

Reviewed By: tamas.petz, #libunwind, compnerd

Differential Revision: https://reviews.llvm.org/D77786

GitOrigin-RevId: f34ae1b9de68152de037fd3e394d196b997c4296