Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.Prune svn:mergeinfo from the new branch, as nothing has been mergedhere.Additional commits post-branch will follow.Approved by: re (implicit)Sponsored by: The FreeBSD Foundation
Add an alternate signal trampoline to libc; add a wrapper for the sigtrampinstall sysarch, to be called from _start.This will allow the stack to be mapped non-executable, as required by thesparc v9 abi.
Fix wrong offsets. Add offsets for %fsr and %tstate.Submitted by: tmm
Add libc side of user trap handling.Add support for handling floating point disabled traps mostly in userlandfor the simple single threaded case. Not yet enabled by default.Implement __sparc_utrap_install as specified by the sparc abi.