Dmitry Chagin de8374df28 fork: Allow ABI to specify fork return values for child. ... At least Linux x86 ABI's does not use carry bit and expects that the dx register is preserved. For this add a new sv_set_fork_retval hook and call it from cpu_fork(). Add a short comment about touching dx in x86_set_fork_retval(), for more details see phab comments from kib@ and imp@. Reviewed by: kib Differential revision: https://reviews.freebsd.org/D31472 MFC after: 2 weeks		2021-08-12 11:45:25 +03:00
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cloudabi64_sysvec.c