poky/meta/recipes-bsp/grub/files/grub-module-explicitly-keeps-symbole-.module_license.patch

From 7461a3de38b66edbe2f5593f9bdab9f2704d32bc Mon Sep 17 00:00:00 2001
From: Hongxu Jia <hongxu.jia@windriver.com>
Date: Wed, 17 Aug 2016 04:06:34 -0400
Subject: [PATCH] grub module explicitly keeps symbole .module_license

While using oe-core toolchain to strip grub module 'all_video.mod',
it stripped symbol table:
--------------
root@localhost:~# objdump -t all_video.mod

all_video.mod:     file format elf64-x86-64

SYMBOL TABLE:
no symbols
--------------

It caused grub to load module all_video failed.
--------------
grub> insmod all_video
error: no symbol table.
--------------

Tweak strip option to keep symbol .module_license could workaround
the issue.
--------------
root@localhost:~# objdump -t all_video.mod

all_video.mod:     file format elf64-x86-64

SYMBOL TABLE:
0000000000000000 l    d  .text  0000000000000000 .text
0000000000000000 l    d  .data  0000000000000000 .data
0000000000000000 l    d  .module_license        0000000000000000 .module_license
0000000000000000 l    d  .bss   0000000000000000 .bss
0000000000000000 l    d  .moddeps       0000000000000000 .moddeps
0000000000000000 l    d  .modname       0000000000000000 .modname
--------------

Upstream-Status: Pending

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
---
 grub-core/genmod.sh.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Index: grub-2.02/grub-core/genmod.sh.in
===================================================================
--- grub-2.02.orig/grub-core/genmod.sh.in
+++ grub-2.02/grub-core/genmod.sh.in
@@ -56,7 +56,7 @@ if test x@TARGET_APPLE_LINKER@ != x1; th
 	if test x@platform@ != xemu; then
 	    @TARGET_STRIP@ --strip-unneeded \
 		-K grub_mod_init -K grub_mod_fini \
-		-K _grub_mod_init -K _grub_mod_fini \
+		-K _grub_mod_init -K _grub_mod_fini -K .module_license \
 		-R .note.gnu.gold-version -R .note.GNU-stack \
 		-R .note -R .comment -R .ARM.exidx $tmpfile || exit 1
 	fi