wrap mmap in a more sensible way
attribute malloc with NO_SB_CC
wrap malloc, free, calloc and realloc into softbound
also, use real __malloc from _start and softbound.c
Merge branch 'softbounds' of github.com:andreas23/freebsd into softbounds
work on errno, unfinished
Wrappers for strlen
Merge branch 'softbounds' of github.com:andreas23/freebsd into softbounds
Merge branch 'softbounds' of github.com:hannesm/freebsd into softbounds

Conflicts:
	lib/libc/string/strlen.c