From fd0325324f1f86684f3753a4d51e7937d8744a11 Mon Sep 17 00:00:00 2001
From: Gabor Juhos <juhosg@openwrt.org>
Date: Tue, 27 Aug 2013 12:02:58 +0000
Subject: [PATCH] image: ensure that /dev/console exist in rootfs images
Linux expects that the /dev/console node is present in
the rootfs image. Create the node in rootfs images, in
order to make std{in,out,err} usable even in early init
process.
Note: tar.gz and cpio.gz images are not handled yet.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
SVN-Revision: 37847
---
include/device_table.txt | 5 +++++
include/image.mk | 11 ++++++++---
2 files changed, 13 insertions(+), 3 deletions(-)
create mode 100644 include/device_table.txt
diff --git a/include/device_table.txt b/include/device_table.txt
new file mode 100644
index 0000000000..f45b158892
--- /dev/null
+++ b/include/device_table.txt
@@ -0,0 +1,5 @@
+# minimal device table file for OpenWrt
+
+#<name> <type> <mode> <uid> <gid> <major> <minor> <start> <inc> <count>
+/dev d 755 0 0 - - - - -
+/dev/console c 600 0 0 5 1 0 0 -
diff --git a/include/image.mk b/include/image.mk
index 09eda736af..e81ce4de2c 100644
--- a/include/image.mk
+++ b/include/image.mk
@@ -17,6 +17,8 @@ KDIR=$(KERNEL_BUILD_DIR)
IMG_PREFIX:=openwrt-$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET))
+MKFS_DEVTABLE_OPT := -D $(INCLUDE_DIR)/device_table.txt
+
ifneq ($(CONFIG_BIG_ENDIAN),)
JFFS2OPTS := --pad --big-endian --squash-uids -v
else
@@ -26,7 +28,7 @@ endif
ifeq ($(CONFIG_JFFS2_RTIME),y)
JFFS2OPTS += -X rtime
endif
-ifeq ($(CONFIG_JFFS2_ZLIB),y)
+ifeq ($(CONFIG_JFFS2_ZLIB),y)
JFFS2OPTS += -X zlib
endif
ifeq ($(CONFIG_JFFS2_LZMA),y)
@@ -42,8 +44,11 @@ ifneq ($(CONFIG_JFFS2_LZMA),y)
JFFS2OPTS += -x lzma
endif
+JFFS2OPTS += $(MKFS_DEVTABLE_OPT)
+
SQUASHFS_BLOCKSIZE := 256k
SQUASHFSOPT := -b $(SQUASHFS_BLOCKSIZE)
+SQUASHFSOPT += -p '/dev d 755 0 0' -p '/dev/console c 600 0 0 5 1'
SQUASHFSCOMP := gzip
LZMA_XZ_OPTIONS := -Xpreset 9 -Xe -Xlc 0 -Xlp 2 -Xpb 2
ifeq ($(CONFIG_SQUASHFS_LZMA),y)
@@ -110,7 +115,7 @@ endif
ifneq ($(CONFIG_TARGET_ROOTFS_UBIFS),)
define Image/mkfs/ubifs
$(CP) ./ubinize.cfg $(KDIR)
- $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
+ $(STAGING_DIR_HOST)/bin/mkfs.ubifs $(UBIFS_OPTS) $(MKFS_DEVTABLE_OPT) -o $(KDIR)/root.ubifs -d $(TARGET_DIR)
$(call Image/Build,ubifs)
(cd $(KDIR); \
$(STAGING_DIR_HOST)/bin/ubinize $(UBINIZE_OPTS) -o $(KDIR)/root.ubi ubinize.cfg)
@@ -136,7 +141,7 @@ ifneq ($(CONFIG_TARGET_ROOTFS_EXT4FS),)
define Image/mkfs/ext4
# generate an ext2 fs
- $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_ROOTFS_RESERVED_PCT)
+ $(STAGING_DIR_HOST)/bin/genext2fs -U -b $(E2SIZE) -N $(CONFIG_TARGET_ROOTFS_MAXINODE) -d $(TARGET_DIR)/ $(KDIR)/root.ext4 -m $(CONFIG_TARGET_ROOTFS_RESERVED_PCT) $(MKFS_DEVTABLE_OPT)
# convert it to ext4
$(STAGING_DIR_HOST)/bin/tune2fs -O extents,uninit_bg,dir_index $(KDIR)/root.ext4
# fix it up
--
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