local.conf.sample: Add Hash Equivalence

Updates the local.conf sample file to reference the variables required
to enable a local hash equivalence server.

(From meta-yocto rev: 29c3a4087c4f358ab88193fdf3787f731a4f4913)

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 14 insertions, 0 deletions

diff --git a/meta-poky/conf/local.conf.sample b/meta-poky/conf/local.conf.sample
index c86eee4560..2e0bb41e64 100644
--- a/meta-poky/conf/local.conf.sample
+++ b/meta-poky/conf/local.conf.sample
@@ -248,6 +248,20 @@ PACKAGECONFIG_append_pn-qemu-system-native = " sdl"
 # a handy set of menus for controlling the emulator.
 #PACKAGECONFIG_append_pn-qemu-system-native = " gtk+"
 
+#
+# Hash Equivalence
+#
+# Enable support for automatically running a local hash equivalence server and
+# instruct bitbake to use a hash equivalence aware signature generator. Hash
+# equivalence improves reuse of sstate by detecting when a given sstate
+# artifact can be reused as equivalent, even if the current task hash doesn't
+# match the one that generated the artifact.
+#
+# A shared hash equivalent server can be set with "<HOSTNAME>:<PORT>" format
+#
+#BB_HASHSERVE = "auto"
+#BB_SIGNATURE_HANDLER = "OEEquivHash"
+
 # CONF_VERSION is increased each time build/conf/ changes incompatibly and is used to
 # track the version of this file when it was generated. This can safely be ignored if
 # this doesn't mean anything to you.