tree 4a182e01842ccdc19faec67440f9f423d5097134
parent effa947b2feae94e33a1fbab265bd8be9adcfef4
author David Brazdil <dbrazdil@google.com> 1564507681 +0100
committer David Brazdil <dbrazdil@google.com> 1565017251 +0100

Simplify GN logic by creating a target for prebuilt Linux

The `initrd` GN template currently supports two different ways of
specifying a primary VM image - name of a target or a path to a prebuilt
image. These use different target properties (as GN has no mechanism of
classifying a string as either a target or a path).

Simplify this in anticipation of using different Linux targets for
different HW boards in platform args by creating a target for each
prebuilt image. The `linux_kernel` template accepts a `prebuilt` path
and creates a "${target_name}__prebuilt" target which copies the image
into the out folder. As a side effect, this more closely ties the image
to the source code in the GN file.

Change-Id: I2afa295e666581393e9a80c311d7d8fe56d4fbba