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As reported by Alexey in:
https://patchwork.ozlabs.org/patch/1087480/
https://patchwork.ozlabs.org/patch/1087471/
when BR2_ARC_ATOMIC_EXT is enabled, -matomic needs to always be passed
to the compiler to allow atomic instructions to be used. So instead of
passing them through the command-line CFLAGS, we enforce them in the
toolchain wrapper directly.
Reported-by: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Arnout Vandecappelle <arnout@mind.be>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
5 lines
161 B
Plaintext
5 lines
161 B
Plaintext
# -matomic is always required when the ARC core has the atomic extensions
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ifeq ($(BR2_arc)$(BR2_ARC_ATOMIC_EXT),yy)
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ARCH_TOOLCHAIN_WRAPPER_OPTS = -matomic
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endif
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