The solution could be either using linkerscript to order text sections (but need to make sure using minimal linkerscript as possible so that other sections are untouched), or changing lld source code to order .text.hot sections before .text.

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/overlays/chromiumos-overlay/+/b24528659b9430458640d23bb8383762fbd2395a

commit b24528659b9430458640d23bb8383762fbd2395a
Author: Tiancong Wang <tcwang@google.com>
Date: Tue Dec 18 16:27:10 2018

lld: Add a local lld patch to reorder .text.hot before .text for lld.

lld by default won't separate symbols marked as hot from text section.
By default, using -z keep-text-section-prefix will group symbols with prefix and order them
as .text, .text.hot, .text.startup, .text.exit, .text.unlikely.

The lld patch re-orders the .text.hot section before .text, matching the ordering in gold:
text.hot, .text, .text.startup, .text.exit, .text.unlikely.

The lld patch also includes a test.

Change the lld emerge file to uprev and build a new lld with the patch

TEST=lld unit test and tested on Caroline-board.
BUG=chromium:912781, chromium:912780

Change-Id: I4ac5af51c46893ee4cfe2ef8e388d104e6bad5b2
Reviewed-on: https://chromium-review.googlesource.com/1378594
Commit-Ready: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>
Reviewed-by: Luis Lozano <llozano@chromium.org>

[add] https://crrev.com/b24528659b9430458640d23bb8383762fbd2395a/sys-devel/lld/files/lld-8.0-reorder-hotsection.patch
[modify] https://crrev.com/b24528659b9430458640d23bb8383762fbd2395a/sys-devel/lld/lld-8.0_pre339409.ebuild
[modify] https://crrev.com/b24528659b9430458640d23bb8383762fbd2395a/chromeos-base/chromeos-chrome/chromeos-chrome-9999.ebuild
[rename] https://crrev.com/b24528659b9430458640d23bb8383762fbd2395a/sys-devel/lld/lld-8.0_pre339409-r3.ebuild