Research V7 development

Research V7 development
Work on file usr/src/libc/gen/timezone.c
Work on file usr/src/libc/gen/execvp.c
Work on file usr/src/libc/gen/cuexit.s
Work on file usr/src/libc/gen/getlogin.c
Work on file usr/src/libc/gen/getenv.c
Work on file usr/src/libc/gen/perror.c
Work on file usr/src/libc/gen/sleep.c
Work on file usr/src/libc/gen/ttyslot.c
Work on file usr/src/libc/gen/abort.s
Work on file usr/src/libc/gen/ttyname.c
Work on file usr/src/libc/gen/abs.c
Work on file usr/src/libc/gen/atol.c
Work on file usr/src/libc/gen/atoi.c
Work on file usr/src/libc/gen/ctime.c
Work on file usr/src/libc/gen/calloc.c
Work on file usr/src/libc/gen/ecvt.c
Work on file usr/src/libc/gen/malloc.c
Work on file usr/src/libc/gen/fakfp.s
Work on file usr/src/libc/gen/fakcu.s
Work on file usr/src/libc/gen/errlst.c
Work on file usr/src/libc/gen/isatty.c
Work on file usr/src/libc/gen/frexp11.s
Work on file usr/src/libc/gen/l3.c
Work on file usr/src/libc/gen/mktemp.c
Work on file usr/src/libc/gen/ldexp11.s
Work on file usr/src/libc/gen/ldfps.s
Work on file usr/src/libc/gen/mon.c
Work on file usr/src/libc/gen/modf11.s
Work on file usr/src/libc/gen/nlist.c
Work on file usr/src/libc/gen/stty.c
Work on file usr/src/libc/gen/rand.c
Work on file usr/src/libc/gen/setjmp.s

Synthesized-from: v7