boot/common/src/loader/cpu/m0/config.mk

#
# (C) Copyright 2002
# Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
PLATFORM_RELFLAGS += -fno-strict-aliasing  -fno-common 

PLATFORM_CPPFLAGS += -march=armv6-m -mcpu=cortex-m0 -mtune=cortex-m0 -msoft-float -mthumb
# =========================================================================
#
# Supply options according to compiler version
#
# =========================================================================
#PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)  geanfeng

# Try if EABI is supported, else fall back to old API,
# i. e. for example:
# - with ELDK 4.2 (EABI supported), use:
#	-mabi=aapcs-linux -mno-thumb-interwork
# - with ELDK 4.1 (gcc 4.x, no EABI), use:
#	-mabi=apcs-gnu -mno-thumb-interwork
# - with ELDK 3.1 (gcc 3.x), use:
#	-mapcs-32 -mno-thumb-interwork
PLATFORM_CPPFLAGS += $(call cc-option,\
				aapcs-linux -mno-thumb-interwork,\
				$(call cc-option,\
					-mapcs-32,\
					$(call cc-option,\
						-mabi=apcs-gnu -mno-thumb-interwork,\
					)\
				) $(call cc-option,-mno-thumb-interwork,)\
			)
PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))