tree 82e999852e8df7f0c792cc06e6cb071da05ed063
parent d5d341221a801b6d7fde56b665d82dde7576cf1d
author Manoj Gupta <manojgupta@google.com> 1645913997 -0800
committer Commit Bot <commit-bot@chromium.org> 1646074591 +0000

cros-kernel2.eclass: Disable FORTIFY_SOURCE for kasan/ubsan

Disable FORTIFY_SOURCE for kasan/ubsan.
Note that this is currently disabled upstream but Chrome OS
has a local revert to have it enabled, see b:207716409.

Since kasan/ubsan are not production configs, it should be
ok to disable it. This fixes the linker error reported
in https://github.com/ClangBuiltLinux/linux/issues/1496
which we also see in kasan/ubsan builds with a newer clang:
https://ci.chromium.org/p/chromeos/builders/cq/amd64-generic-ubsan-cq/b8821193676102987361?

This change can be reverted once there is a general solution
in place for b:207716409.

BUG=b:221611945, b:207716409
TEST=4.14 kernel builds with USE=ubsan and tot llvm.

Change-Id: Ibac6bbf534df9378a4d1315c9b5dde7fe6190871
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/3492916
Reviewed-by: Luis Lozano <llozano@chromium.org>
Commit-Queue: Manoj Gupta <manojgupta@chromium.org>
Tested-by: Manoj Gupta <manojgupta@chromium.org>
Auto-Submit: Manoj Gupta <manojgupta@chromium.org>