760faf9fdd
current FreeBSD signal trampoline, but does not specifies sv_sigcode_base, since shared page is not mapped. This results in the zero %eip for the signal frame. Fall back to calculating %eip as offset from the psstrings when sv_sigcode_base is not initialized. Reported by: Rich Naill <rich@enterprisesystems.net> Sponsored by: The FreeBSD Foundation MFC after: 1 week