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7655146883
As of today we enable unaligned access unconditionally on ARCv2.
Do this under a Kconfig option to allow disable it for test, benchmarking
etc. Also while at it
- Select HAVE_EFFICIENT_UNALIGNED_ACCESS
- Although gcc defaults to unaligned access (since GNU 2018.03), add the
right toggles for enabling or disabling as appropriate
- update bootlog to prints both HW feature status (exists, enabled/disabled)
and SW status (used / not used).
- wire up the relaxed memcpy for unaligned access
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
[vgupta: squashed patches, handle gcc -mno-unaligned-access quick]
18 lines
588 B
Makefile
18 lines
588 B
Makefile
#
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# Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License version 2 as
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# published by the Free Software Foundation.
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lib-y := strchr-700.o strcpy-700.o strlen.o memcmp.o
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lib-$(CONFIG_ISA_ARCOMPACT) += memcpy-700.o memset.o strcmp.o
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lib-$(CONFIG_ISA_ARCV2) += memset-archs.o strcmp-archs.o
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ifdef CONFIG_ARC_USE_UNALIGNED_MEM_ACCESS
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lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs-unaligned.o
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else
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lib-$(CONFIG_ISA_ARCV2) +=memcpy-archs.o
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endif
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