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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2007-07-08 19:22:18 +0000
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2007-07-08 19:22:18 +0000
commit149c552e0fda9bdc64ea10fe5a2bfa35bd26ec65 (patch)
treec13fac6dea6bbc5d8e1b0785f971376614b55c32 /target/initramfs/initramfs.mk
parent402d710eeba8d7434387a0a36da66bfe837adbdc (diff)
- provide option to build an initramfs out of the current rootfs. Closes #881
Diffstat (limited to 'target/initramfs/initramfs.mk')
-rw-r--r--target/initramfs/initramfs.mk43
1 files changed, 43 insertions, 0 deletions
diff --git a/target/initramfs/initramfs.mk b/target/initramfs/initramfs.mk
new file mode 100644
index 000000000..e4ae1480a
--- /dev/null
+++ b/target/initramfs/initramfs.mk
@@ -0,0 +1,43 @@
+#############################################################
+#
+# Make a initramfs_list file to be used by gen_init_cpio
+# gen_init_cpio is part of the 2.6 linux kernels to build an
+# initial ramdisk filesystem based on cpio
+#
+#############################################################
+
+ifeq ($(strip $(BR2_TARGET_ROOTFS_INITRAMFS)),y)
+INITRAMFS_TARGET:=$(IMAGE).initramfs_list
+else
+INITRAMFS_TARGET:= #nothing
+endif
+
+$(INITRAMFS_TARGET) initramfs: host-fakeroot makedevs
+ -find $(TARGET_DIR) -type f -perm +111 | xargs $(STRIP) 2>/dev/null || true;
+ rm -rf $(TARGET_DIR)/usr/man
+ rm -rf $(TARGET_DIR)/usr/info
+ -/sbin/ldconfig -r $(TARGET_DIR) 2>/dev/null
+ # Use fakeroot to pretend all target binaries are owned by root
+ rm -f $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ touch $(STAGING_DIR)/.fakeroot.00000
+ cat $(STAGING_DIR)/.fakeroot* > $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ echo "chown -R 0:0 $(TARGET_DIR)" >> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ # Use fakeroot to pretend to create all needed device nodes
+ echo "$(STAGING_DIR)/bin/makedevs -d $(TARGET_DEVICE_TABLE) $(TARGET_DIR)" \
+ >> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ # Use fakeroot so gen_initramfs_list.sh believes the previous fakery
+ echo "$(CONFIG_SHELL) target/initramfs/gen_initramfs_list.sh -u 0 -g 0 $(TARGET_DIR) > $(INITRAMFS_TARGET)" \
+ >> $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ chmod a+x $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ $(STAGING_DIR)/usr/bin/fakeroot -- $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+ -rm -f $(STAGING_DIR)/_fakeroot.$(notdir $(TAR_TARGET))
+
+initramfs-source:
+
+initramfs-clean:
+ifeq ($(strip $(BR2_TARGET_ROOTFS_INITRAMFS)),y)
+ -rm -f $(INITRAMFS_TARGET)
+endif
+initramfs-dirclean:
+
+