elm uses an stm32 MCU with a cortex m0 core that requires aligned access (as do most of our cros-ec boards). Assuming it works correctly, CONFIG_HOSTCMD_ALIGNED results in reduced reduced code size and flash / RAM savings. So, we probably do want to leave it enabled.

But I do agree that we shouldn't have to define CONFIG_HOSTCMD_ALIGNED in order to pass compilation.

Found same issue on nyan_big. @shawnn, Can you check all arm/aarch64 boards that need this?

I will look into the issue of llvm throwing errors when CONFIG_HOSTCMD_ALIGNED is not defined. manojgupta@, can you provide information on how to setup your build environment?

Sorry, didn't mean to remove vpalatin@.

This seems like an auto-complete bug. Sorry.

Here are the steps to reproduce.

Please run these in ~/trunk/src/scripts

1. emerge llvm with llvm-next option. 
$ USE="llvm-next" sudo emerge llvm clang

Next step has to be repeated per board.

2. Setup llvm profile for build and build ec-utils
$ ./setup_board --board $BOARD --force --profile=llvm && emerge-${BOARD} ec-utils
 

Oak board also has the same issue (and presumably most other arm/aarch64 boards).

Bumping to P2. 

Did not intend to remove laszio@. Adding him back. 
(Hitting probably same auto-complete bug in #6)

The following revision refers to this bug:
  https://chromium.googlesource.com/chromiumos/platform/ec/+/c6c5a4467467b546c25e1f73a4f4fa2c630b62c6

commit c6c5a4467467b546c25e1f73a4f4fa2c630b62c6
Author: Shawn Nematbakhsh <shawnn@chromium.org>
Date: Thu Dec 15 22:02:27 2016

util/ectool: Fix llvm compiler errors

BUG= chromium:668259 
BRANCH=None
TEST=Manual on samus (w/ gcc-built ectool).
Verify 'ectool pause_in_s5 [on|off]' followed by 'ectool pause_in_s5'
reflects the new updated state.
Verify 'ectool --name=cros_pd flashpd 0 1 ec.RW.bin' succeeds to flash
valid zinger RW image.
Also verify `emerge-nyan_big ec-utils` succeeds w/ new llvm toolchain.

Change-Id: Ibe83ee0fc0b2e6f535ed822603f438ed62350d29
Signed-off-by: Shawn Nematbakhsh <shawnn@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/419797
Commit-Ready: Shawn N <shawnn@chromium.org>
Tested-by: Shawn N <shawnn@chromium.org>
Reviewed-by: Manoj Gupta <manojgupta@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>

[modify] https://crrev.com/c6c5a4467467b546c25e1f73a4f4fa2c630b62c6/util/ectool.c

Closing. Please reopen it if its not fixed. Thanks!