Comment out the line with rofs for f32tests.oby and comment out the variant bit to allow to build e32 & f32 tests for kernelhwsrv.
# Copyright (c) 2005-2009 Nokia Corporation and/or its subsidiary(-ies).
# All rights reserved.
# This component and the accompanying materials are made available
# under the terms of the License "ARM EABI LICENCE.txt"
# which accompanies this distribution, and is available
# in kernel/eka/compsupp.
#
# Initial Contributors:
# Nokia Corporation - initial contribution.
#
# Contributors:
#
# Description:
# component name "Compiler Runtime Support"
component base_e32_compsupp
source \sf\os\kernelhwsrv\kernel\eka\compsupp
binary \sf\os\kernelhwsrv\kernel\eka\compsupp all
exports \sf\os\kernelhwsrv\kernel\eka\compsupp
notes_source \component_defs\release.src
ipr D