set -fno-stack-protector in NORMAL_C_NOP, which is used to compile

set -fno-stack-protector in NORMAL_C_NOP, which is used to compile
mcount.c, in the same way that -fno-ret-protector is set (because
the default ret-protector is an "always" generator).  This change
ensures there is never a stack protector prologue/epilogue in the
functions in that file, no matter what stack protector selection
algorithm is in play.
ok kettenis guenther