#############################################################
#
-# Linux kernel targets
+# Linux kernel target for the OpenWRT project
#
-# Note: If you have any patches to apply, create the directory
-# sources/kernel-patches and put your patches in there and number
-# them in the order you wish to apply them... i.e.
-#
-# sources/kernel-patches/001-my-special-stuff.bz2
-# sources/kernel-patches/003-gcc-Os.bz2
-# sources/kernel-patches/004_no-warnings.bz2
-# sources/kernel-patches/030-lowlatency-mini.bz2
-# sources/kernel-patches/031-lowlatency-fixes-5.bz2
-# sources/kernel-patches/099-shutup.bz2
-# etc...
-#
-# these patches will all be applied by the patch-kernel.sh
-# script (which will also abort the build if it finds rejects)
-# -Erik
+# patches are sorted by numbers
+# 000 patch between linux-2.4.29 and linux-mips-cvs
+# 0xx linksys patches
+# 1xx OpenWRT patches (diag,compressed,..)
+# 2xx fixes for 2.4.29 integration (wl driver)
+# 3xx kernel feature patches (squashfs,jffs2 compression,..)
+# 4xx patches needed to integrate feature patches
#
#############################################################
ifneq ($(filter $(TARGETS),linux),)
)
LINUX_VERSION=2.4.29
-LINUX_CVS_DATE="2005-01-30"
-LINUX_CVS_BRANCH=linux_2_4
-LINUX_DIR=$(BUILD_DIR)/linux
-LINUX_SITE=ftp.linux-mips.org
+LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION)
+LINUX_SITE=http://www.kernel.org/pub/linux/kernel/v2.4
+LINUX_SOURCE=linux-$(LINUX_VERSION).tar.bz2
LINUX_KCONFIG=package/linux/linux.config
LINUX_KERNEL=$(BUILD_DIR)/buildroot-kernel
+LINUX_PATCHES=$(PACKAGE_DIR)/linux/kernel-patches
LINUX_BINLOC=arch/$(LINUX_KARCH)/brcm-boards/bcm947xx/compressed/vmlinuz
# Used by pcmcia-cs and others
LINUX_SOURCE_DIR=$(LINUX_DIR)
# kernel stuff extracted from linksys firmware GPL sourcetree
# WRT54GS_3_37_2_1109_US (shared,include,wl,et)
+LINKSYS_KERNEL_SITE=http://openwrt.openbsd-geek.de
LINKSYS_KERNEL_TGZ=linksys-kernel.tar.gz
TARGET_MODULES_DIR=$(TARGET_DIR)/lib/modules/$(LINUX_VERSION)
-$(DL_DIR)/linux.tar.bz2:
- -mkdir -p $(DL_DIR)
- (cd $(DL_DIR); cvs -d :pserver:cvs:cvs@$(LINUX_SITE):/home/cvs login)
- (cd $(DL_DIR); cvs -z3 -d :pserver:cvs:cvs@$(LINUX_SITE):/home/cvs co -D $(LINUX_CVS_DATE) -r$(LINUX_CVS_BRANCH) linux)
- (cd $(DL_DIR); tar jcvf linux.tar.bz2 linux && rm -rf linux)
-
$(DL_DIR)/$(LINKSYS_KERNEL_TGZ):
- $(WGET) -P $(DL_DIR) $(LINKSYS_TGZ_SITE)/$(LINKSYS_KERNEL_TGZ)
+ $(WGET) -P $(DL_DIR) $(LINKSYS_KERNEL_SITE)/$(LINKSYS_KERNEL_TGZ)
-$(LINUX_DIR)/.unpacked: $(DL_DIR)/linux.tar.bz2 $(DL_DIR)/$(LINKSYS_KERNEL_TGZ)
+$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE) $(DL_DIR)/$(LINKSYS_KERNEL_TGZ)
-mkdir -p $(BUILD_DIR)
- (cd $(BUILD_DIR); tar jxvf $(DL_DIR)/linux.tar.bz2)
- -mkdir -p $(TOOL_BUILD_DIR)
- -(cd $(TOOL_BUILD_DIR); ln -sf $(BUILD_DIR)/linux linux)
- toolchain/patch-kernel.sh $(LINUX_DIR) package/linux/kernel-patches
- -cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config
+ bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
# extract linksys binary kernel stuff and include/shared files
zcat $(DL_DIR)/$(LINKSYS_KERNEL_TGZ) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
touch $(LINUX_DIR)/.unpacked
-$(LINUX_KCONFIG):
- @if [ ! -f "$(LINUX_KCONFIG)" ] ; then \
- echo ""; \
- echo "You should create a .config for your kernel"; \
- echo "and install it as $(LINUX_KCONFIG)"; \
- echo ""; \
- sleep 5; \
- fi;
+$(LINUX_DIR)/.patched: $(LINUX_DIR)/.unpacked
+ $(PATCH) $(LINUX_DIR) $(LINUX_PATCHES)
+ifeq ($(BR2_TARGET_ROOTFS_SQUASHFS_LZMA),y)
+ $(PATCH) $(LINUX_DIR) target/squashfs-lzma/kernel-patch
+endif
+ touch $(LINUX_DIR)/.patched
-$(LINUX_DIR)/.configured: $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG)
+$(LINUX_DIR)/.configured: $(LINUX_DIR)/.patched
+ -cp $(LINUX_KCONFIG) $(LINUX_DIR)/.config
$(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" $(LINUX_DIR)/Makefile
$(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" $(LINUX_DIR)/arch/mips/Makefile
$(SED) "s,\-mcpu=,\-mtune=,g;" $(LINUX_DIR)/arch/mips/Makefile
tar -C $(BUILD_DIR)/modules/lib -cjf openwrt-kmodules.tar.bz2 modules
touch $(LINUX_DIR)/.modules_done
-
$(STAGING_DIR)/include/linux/version.h: $(LINUX_DIR)/.configured
mkdir -p $(STAGING_DIR)/include
tar -ch -C $(LINUX_DIR)/include -f - linux | tar -xf - -C $(STAGING_DIR)/include/
tar -ch -C $(LINUX_DIR)/include -f - asm | tar -xf - -C $(STAGING_DIR)/include/
-linux: $(LINUX_DIR)/.modules_done $(TARGET_MODULES_DIR)
-
$(TARGET_MODULES_DIR):
-mkdir -p $(TARGET_MODULES_DIR)
cp $(LINUX_DIR)/drivers/net/wl/wl.o $(TARGET_MODULES_DIR)
cp $(LINUX_DIR)/drivers/net/et/et.o $(TARGET_MODULES_DIR)
cp $(LINUX_DIR)/drivers/net/diag/diag.o $(TARGET_MODULES_DIR)
+linux: $(LINUX_DIR)/.modules_done $(TARGET_MODULES_DIR)
+
linux-source: $(DL_DIR)/$(LINUX_SOURCE)
# This has been renamed so we do _NOT_ by default run this on 'make clean'
linux-dirclean:
rm -rf $(LINUX_DIR)
-linux-headers: $(LINUX_DIR)/.configured
+endif
+#############################################################
+#
+# Toplevel Makefile options
+#
+##############################################################
+ifeq ($(strip $(BR2_PACKAGE_LINUX)),y)
+TARGETS+=linux
endif
projects / openwrt.git / blobdiff