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effd82ca70
Return values are passed in a0, so read it from there. We also pass a1 through to userspace, as the ABI allows small structs to be returned in registers a0/a1. While here read the register values directly from the trapframe rather than rtval, and remove the now unneeded argument from dtrace_invop(). Set fbtp_roffset so that we get the correct return location in arg0. Reviewed by: markj Sponsored by: Axiado Differential Revision: https://reviews.freebsd.org/D26389 |
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