commit 7afa91f7de1f95ec9f0ff7971c58a0dbf5bf7cc0
author Roland McGrath <mcgrathr@google.com> Tue Apr 02 20:27:00 2024 +0000
committer CQ Bot <fuchsia-internal-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Apr 02 20:27:00 2024 +0000
tree f877cb742670f99f55d81a48b719e4ec3ef8c24f
parent 4a538390141650887c6bd3ebc97927b8ea51bea5

[elfldltl] Refactor Commit and RELRO support in Loader API

This removes the ProtectRelro method from the *Loader template
APIs.  Instead, the Commit method now takes the RelroBounds
result and returns a Loader::Relro object.  This object is used
to later apply RELRO protection.  This decouples the ownership of
the mapping that is transferred by Loader::Commit at the end of
the Loader lifetime from the ownership of the Relro capability
(zx::vmar for Fuchsia).  Once the mapping ownership has been
transferred, the Loader object's lifetime ends and the Relro
object's lifetime begins.  It lives until protection is applied.

Bug: 42085436
Change-Id: Idf16edfbb4a79728248426285e3b5025e01c5a32
Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1016441
Fuchsia-Auto-Submit: Roland McGrath <mcgrathr@google.com>
Commit-Queue: Auto-Submit <auto-submit@fuchsia-infra.iam.gserviceaccount.com>
Reviewed-by: Caslyn Tonelli <caslyn@google.com>