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authormrg <mrg@NetBSD.org>2020-09-21 21:26:43 +0000
committermrg <mrg@NetBSD.org>2020-09-21 21:26:43 +0000
commit0567a8f42cc7660ec11bb5d4c3e52a0573fb4e01 (patch)
tree0a539995fa9fb971c714dab878fbde8481fa8b63 /libexec
parent1fd0fac16f0f6c82b540b2d1873895d7623fd1a3 (diff)
turn on CPU_CONTROL_SWP_ENABLE.
this allows armv[67] systems to use 'swp' and 'swpb' instructions, which means they can run armv[45] software. arm recommends ldrex/strex for armv6 and newer, and it is not present in armv8 at all or some armv7. we emulate it on armv8 and need to add emulation for the some armv7. using the hardware is going to be faster, so, enable this path too. ok jmcneill.
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