GitLab

Credit to digit@ who supplied much of this change via a reference CL.

Rather than including one of two static linker scripts, generate the
desired script instead.  This allows an arbitrary list of additional
exported methods to be supplied if desired.

BUG=874587

Change-Id: I88eb0469dfb764bf910b8c3fe76fd4ed2c91c1e4
Reviewed-on: https://chromium-review.googlesource.com/c/1338141
Commit-Queue: Christopher Grant <cjgrant@chromium.org>
Reviewed-by: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: agrieve <agrieve@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610217}