1 files changed, 28 insertions, 0 deletions

diff --git a/meta/conf/distro/include/lto.inc b/meta/conf/distro/include/lto.inc
new file mode 100644
index 0000000000..fe0f6c9f44
--- /dev/null
+++ b/meta/conf/distro/include/lto.inc
@@ -0,0 +1,28 @@
+# To enable LTO, add following in local.conf
+# require conf/distro/include/lto.inc
+# DISTRO_FEATURES_append = " lto"
+#
+
+# Disable LTO for following packages
+LTO_pn-glibc = ""
+LTO_pn-gcc-runtime = ""
+LTO_pn-libgcc-initial = ""
+LTO_pn-libgcc = ""
+LTO_pn-libpam = ""
+LTO_pn-elfutils = ""
+LTO_pn-perl = ""
+LTO_pn-busybox = ""
+LTO_pn-libxcrypt = ""
+LTO_pn-curl = ""
+LTO_pn-libcap = ""
+LTO_pn-libproxy = ""
+LTO_pn-libbsd = ""
+
+# Override it for additional or different options if needed e.g.
+# with clang thin-lto might be better for compile speed
+LTO ?= "-flto"
+
+SELECTED_OPTIMIZATION_append = "${@bb.utils.contains('DISTRO_FEATURES', 'lto', ' ${LTO}', '', d)}"
+TARGET_LDFLAGS_append_class-target = "${@bb.utils.contains('DISTRO_FEATURES', 'lto', ' ${LTO}', '', d)}"
+
+SELECTED_OPTIMIZATION[vardeps] += "LTO"