tree d29d7cfa2fbd5142ad7866a319c798fec1fb8460
parent 5e0484e9df841c1ca2c80348db3e467c8c35b8ef
author David Brazdil <dbrazdil@google.com> 1565372918 +0100
committer David Brazdil <dbrazdil@google.com> 1565601674 +0100

Copy kernel module source including subfolders

Previously the build used the GN copy() target to copy the source
of a to-be-built kernel module into the output directory. However,
the target does not support preserving subfolder structure. Replace
it with a Python script.

A new 'source_dir_copy' template is added, which creates a dependency
on the files in the source directory using the 'source_dir' target.
Then it copies the files into 'target_out_dir'. When the source
directory changes, the copying Python script is invoked again, updating
the copy in the out folder.

Change-Id: I23f2807fbb77bcf6d933e9541f5dbf1f2429b410