[PATCH] grub-efi-cfg: Add GRUB_TITLE for custom GRUB titles

Until now, the default title of a boot entry is its label. The label is
a variable which determines the script to run during an early boot stage
and is not necessarily human readable.

This patch allows to provide a human-readable title for each boot entry.
---
 meta/classes-recipe/grub-efi-cfg.bbclass    | 8 +++++++-
 meta/recipes-bsp/grub/grub-bootconf_1.00.bb | 2 +-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/meta/classes-recipe/grub-efi-cfg.bbclass b/meta/classes-recipe/grub-efi-cfg.bbclass
index 52e85a3bb0..9a5cb99c52 100644
--- a/meta/classes-recipe/grub-efi-cfg.bbclass
+++ b/meta/classes-recipe/grub-efi-cfg.bbclass
@@ -23,6 +23,7 @@ GRUB_TIMEOUT ?= "10"
 GRUB_OPTS ?= "serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1"
 
 GRUB_ROOT ?= "${ROOT}"
+GRUB_TITLE ?= ""
 APPEND ?= ""
 
 # Uses MACHINE specific KERNEL_IMAGETYPE
@@ -91,10 +92,15 @@ python build_efi_cfg() {
         if not overrides:
             bb.fatal('OVERRIDES not defined')
 
+        localdata.need_overrides()
         localdata.setVar('OVERRIDES', 'grub_' + label + ':' + overrides)
 
         for btype in btypes:
-            cfgfile.write('\nmenuentry \'%s%s\'{\n' % (label, btype[0]))
+            title = localdata.getVar('GRUB_TITLE')
+            if not title or len(title) == 0:
+                title = label
+
+            cfgfile.write('\nmenuentry \'%s%s\'{\n' % (title, btype[0]))
             lb = label
             if label == "install":
                 lb = "install-efi"
diff --git a/meta/recipes-bsp/grub/grub-bootconf_1.00.bb b/meta/recipes-bsp/grub/grub-bootconf_1.00.bb
index 783e30bf38..7ed0877726 100644
--- a/meta/recipes-bsp/grub/grub-bootconf_1.00.bb
+++ b/meta/recipes-bsp/grub/grub-bootconf_1.00.bb
@@ -22,7 +22,7 @@ python do_configure() {
     bb.build.exec_func('build_efi_cfg', d)
 }
 
-do_configure[vardeps] += "APPEND ROOT"
+do_configure[vardeps] += "APPEND ROOT GRUB_TITLE"
 
 do_install() {
 	install -d ${D}${EFI_FILES_PATH}
-- 
2.43.0