linux-kernel - [PATCH 2/4] x86, build: Add new paths for isolinux.bin and ldlinux.c32

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Date:   Sun,  5 Nov 2017 17:18:11 +0800
From:   changbin.du@...el.com
To:     hpa@...or.com, tglx@...utronix.de
Cc:     mingo@...hat.com, x86@...nel.org, linux-kernel@...r.kernel.org,
        yamada.masahiro@...ionext.com, Changbin Du <changbin.du@...el.com>
Subject: [PATCH 2/4] x86, build: Add new paths for isolinux.bin and ldlinux.c32

From: Changbin Du <changbin.du@...el.com>

Recently I failed to build isoimage target, because the path of isolinux.bin
changed to /usr/xxx/ISOLINUX/isolinux.bin, as well as ldlinux.c32 which
changed to /usr/xxx/syslinux/modules/bios/ldlinux.c32.

This patch has a improvement of the file search:
  - Show a error message instead of silent fail.
  - Add above new paths.

Signed-off-by: Changbin Du <changbin.du@...el.com>
---
 arch/x86/boot/genimage.sh | 23 ++++++++++++++++++-----
 1 file changed, 18 insertions(+), 5 deletions(-)

diff --git a/arch/x86/boot/genimage.sh b/arch/x86/boot/genimage.sh
index 75a9de1..f7994ad 100644
--- a/arch/x86/boot/genimage.sh
+++ b/arch/x86/boot/genimage.sh
@@ -76,14 +76,27 @@ genisoimage() {
 	rm -rf $tmp_dir
 	mkdir $tmp_dir
 	for i in lib lib64 share end ; do
-		if [ -f /usr/$i/syslinux/isolinux.bin ] ; then
-			cp /usr/$i/syslinux/isolinux.bin $tmp_dir
-			if [ -f /usr/$i/syslinux/ldlinux.c32 ]; then
-				cp /usr/$i/syslinux/ldlinux.c32 $tmp_dir
+		for j in syslinux ISOLINUX ; do
+			if [ -f /usr/$i/$j/isolinux.bin ] ; then
+				isolinux=/usr/$i/$j/isolinux.bin
+				echo "Using $isolinux"
+				cp $isolinux $tmp_dir
 			fi
+		done
+		for j in syslinux syslinux/modules/bios ; do
+			if [ -f /usr/$i/$j/ldlinux.c32 ]; then
+				ldlinux=/usr/$i/$j/ldlinux.c32
+				echo "Using $ldlinux"
+				cp $ldlinux $tmp_dir
+			fi
+		done
+		if [ -n "$isolinux" -a -n "$ldlinux" ] ; then
 			break
 		fi
-		if [ $i = end ] ; then exit 1 ; fi ;
+		if [ $i = end -a -z "$isolinux" ] ; then
+			echo 'Need isolinux.bin, please install syslinux/isolinux'
+			exit 1
+		fi
 	done
 	cp $FBZIMAGE $tmp_dir/linux
 	echo "$KCMDLINE" > $tmp_dir/isolinux.cfg
-- 
2.7.4