[linux-yocto] [PATCH 01/10] meta: Add lto (Link-Time Optimization) enablement feature

[Alejandro Hernandez]

From: Tom Zanussi <tom.zanussi at linux.intel.com>

Add a feature allowing the enablement of LTO (Link-Time Optimization)
for the Linux kernel.  To enable LTO for the kernel, add (for
example):

  KERNEL_FEATURES_append_galileo += " features/lto.scc"

Note that this feature requires special toolchain support (HJ Lu's
Linux binutils and gcc >= 4.9).

Signed-off-by: Tom Zanussi <tom.zanussi at linux.intel.com>
---
 features/lto/lto.cfg | 5 +++++
 features/lto/lto.scc | 4 ++++
 2 files changed, 9 insertions(+)
 create mode 100644 features/lto/lto.cfg
 create mode 100644 features/lto/lto.scc

diff --git a/features/lto/lto.cfg b/features/lto/lto.cfg
new file mode 100644
index 0000000..4c2f7f9
--- /dev/null
+++ b/features/lto/lto.cfg
@@ -0,0 +1,5 @@
+CONFIG_LTO_MENU=y
+CONFIG_LTO=y
+# CONFIG_LTO_DEBUG is not set
+# CONFIG_LTO_CP_CLONE is not set
+# CONFIG_LTO_SLIM is not set
diff --git a/features/lto/lto.scc b/features/lto/lto.scc
new file mode 100644
index 0000000..0b0a5b2
--- /dev/null
+++ b/features/lto/lto.scc
@@ -0,0 +1,4 @@
+define KFEATURE_DESCRIPTION "Enable LTO (Link-Time Optimization) for the Linux kernel"
+define KFEATURE_COMPATIBILITY all
+
+kconf hardware lto.cfg
-- 
2.6.6