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https://github.com/brain-hackers/u-boot-brain
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1bb8b2ef27
This patch fixes warnings like this: start.S:0: warning: target CPU does not support interworking which come from some ARM cross compilers and are caused by hard-coded (with "--with-cpu=arm9" configuration option) ARM targets (which support ARM Thumb instructions), while the ARM target selected from the command line (with "-march=armv4") doesn't support Thumb instructions. This warning is issued by the compiler regardless of the real use of the Thumb instructions in code. To fix this problem, we use options according to compiler version being used. Signed-off-by: Sergei Poselenov <sposelenov@emcraft.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
35 lines
1.3 KiB
Makefile
35 lines
1.3 KiB
Makefile
#
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# (C) Copyright 2002
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# Gary Jennejohn, DENX Software Engineering, <gj@denx.de>
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#
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# See file CREDITS for list of people who contributed to this
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# project.
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License as
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# published by the Free Software Foundation; either version 2 of
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# the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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# MA 02111-1307 USA
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#
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PLATFORM_RELFLAGS += -fno-strict-aliasing -fno-common -ffixed-r8 \
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-msoft-float
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PLATFORM_CPPFLAGS += -march=armv4
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# =========================================================================
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#
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# Supply options according to compiler version
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#
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# =========================================================================
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PLATFORM_CPPFLAGS +=$(call cc-option,-mapcs-32,-mabi=apcs-gnu)
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PLATFORM_RELFLAGS +=$(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
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