Unless you are walking away from your pack or else leaving all your gear in camp, while also taking those 'emergency' items like your tarp and emergency blanket with you, then the gear you already use for camping is your survival gear, too.

Instead of taking both 'primary' gear and 'emergency' backups, I find it is better just to have reliable gear and to always double check it before I go, so I know it probably won't fail. I also take a small amount of repair stuff, like needle & thread and duct tape. That's enough.