commit f5bd5cbe360f36f251a6d2010661546b0b3ee62f
author Mike Frysinger <vapier@chromium.org> Thu Jan 14 03:18:11 2021 -0500
committer Commit Bot <commit-bot@chromium.org> Mon Jan 25 23:45:29 2021 +0000
tree 2128ab3abcc101c84af486691f87a5f9d269073b
parent 293e4ca9e218d37247d669b4f0d037411ad62250

sysroot_lib: add -O to MAKEOPTS [reland]

This is a reland of 2751fd7b489ea796b428b1ed1305e8d765b73d26

The assistant code should be fixed now, and we should have a Chrome
uprev with the fix, so should be safe to land now.

Now that we've had a new enough make for a while, turn on the -O
option.  This tells make to group output from targets together and
not intermingle everything which makes reading parallel build output
a lot easier on humans.

BUG=None
TEST=CQ passes

Change-Id: I1d59aa5210903094b43036bba5b735dd72f97b8c
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/chromite/+/2640138
Reviewed-by: Sergey Frolov <sfrolov@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: Mike Frysinger <vapier@chromium.org>

lib/sysroot_lib.py

diff --git a/lib/sysroot_lib.py b/lib/sysroot_lib.py
index a86fab9..575916c 100644
--- a/lib/sysroot_lib.py
+++ b/lib/sysroot_lib.py
@@ -509,7 +509,7 @@
     config['BOARD_OVERLAY'] = '\n'.join(board_overlays)
     config['PORTDIR_OVERLAY'] = '\n'.join(portdir_overlays)
 
-    config['MAKEOPTS'] = '-j%s' % str(multiprocessing.cpu_count())
+    config['MAKEOPTS'] = f'-O -j{multiprocessing.cpu_count()}'
     config['ROOT'] = self.path + '/'
     config['PKG_CONFIG'] = self._WrapperPath('pkg-config')