tree 4ab89067284b35769754e355ad41083c036f758d
parent 771b261f7924dff313962d9d929c2669596d8f7e
author Adrian Ratiu <adrian.ratiu@collabora.com> 1637939436 +0200
committer Commit Bot <commit-bot@chromium.org> 1641556356 +0000

kernel-2.eclass: Respect portage toolchain variables

This backports the following commit from Gentoo upstream:
https://github.com/gentoo/gentoo/commit/55f5c68c01e791c7339144aadc1f20802791551e

Starting with kernel>=v5.7 the build system can override the
tools vars by setting LLVM=1 [1], but older kernels still use
the default GNU tools, so to be able to use a full LLVM/Clang
build, CC & co should be set to their respective portage values.

[1] a0d1c951ef08 kbuild: support LLVM=1 to switch the default tools to Clang/LLVM

BUG=b:193847062
TEST=Local builds on x64 & arm; CQ.

Change-Id: Ie99ae59fc9686f45cbf2f52249510e780fe61b33
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/portage-stable/+/3367255
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Adrian Ratiu <adrian.ratiu@collabora.corp-partner.google.com>
Commit-Queue: Adrian Ratiu <adrian.ratiu@collabora.corp-partner.google.com>