tree 0436ae3b005558a4fb827459fe5c602037fe764a
parent 38addce8b600ca335dc86fa3d48c890f1c6fa1f4
author Emese Revfy <re.emese@gmail.com> 1466448154 +0200
committer Kees Cook <keescook@chromium.org> 1476136305 -0700

latent_entropy: Mark functions with __latent_entropy

The __latent_entropy gcc attribute can be used only on functions and
variables.  If it is on a function then the plugin will instrument it for
gathering control-flow entropy. If the attribute is on a variable then
the plugin will initialize it with random contents.  The variable must
be an integer, an integer array type or a structure with integer fields.

These specific functions have been selected because they are init
functions (to help gather boot-time entropy), are called at unpredictable
times, or they have variable loops, each of which provide some level of
latent entropy.

Signed-off-by: Emese Revfy <re.emese@gmail.com>
[kees: expanded commit message]
Signed-off-by: Kees Cook <keescook@chromium.org>