K 10
svn:author
V 4
tijl
K 8
svn:date
V 27
2019-07-24T12:48:51.745454Z
K 7
svn:log
V 406
MFC r349880:

Let linuxulator mprotect mask unsupported bits before calling kern_mprotect.

After r349240 kern_mprotect returns EINVAL for unsupported bits in the prot
argument.  Linux rtld uses PROT_GROWSDOWN and PROT_GROWS_UP when marking the
stack executable.  Mask these bits like kern_mprotect used to do.  For other
unsupported bits EINVAL is returned like Linux does.

Reviewed by:    trasz, brooks

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