#############################################################
#
-# 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 $(TARGETS),linux),)
-# Version of Linux to download and then apply patches to
-DOWNLOAD_LINUX_VERSION=2.4.27
-# Version of Linux AFTER patches
-LINUX_VERSION=2.4.28-pre4-erik
-
-LINUX_FORMAT=vmlinux
-#LINUX_FORMAT=images/zImage.prep
+LINUX_FORMAT=zImage
LINUX_KARCH:=$(shell echo $(ARCH) | sed -e 's/i[3-9]86/i386/' \
-e 's/mipsel/mips/' \
-e 's/powerpc/ppc/' \
-e 's/sh[234]/sh/' \
)
-LINUX_BINLOC=arch/$(LINUX_KARCH)/boot/$(LINUX_FORMAT)
+LINUX_VERSION=2.4.29
LINUX_DIR=$(BUILD_DIR)/linux-$(LINUX_VERSION)
-LINUX_SOURCE=linux-$(DOWNLOAD_LINUX_VERSION).tar.bz2
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_SOURCE):
- -mkdir -p $(DL_DIR)
- $(WGET) -P $(DL_DIR) $(LINUX_SITE)/$(LINUX_SOURCE)
+$(DL_DIR)/$(LINKSYS_KERNEL_TGZ):
+ $(WGET) -P $(DL_DIR) $(LINKSYS_KERNEL_SITE)/$(LINKSYS_KERNEL_TGZ)
-$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE)
- -mkdir -p $(TOOL_BUILD_DIR)
- -(cd $(TOOL_BUILD_DIR); ln -sf $(LINUX_DIR) linux)
+$(LINUX_DIR)/.unpacked: $(DL_DIR)/$(LINUX_SOURCE) $(DL_DIR)/$(LINKSYS_KERNEL_TGZ)
+ -mkdir -p $(BUILD_DIR)
bzcat $(DL_DIR)/$(LINUX_SOURCE) | tar -C $(BUILD_DIR) $(TAR_OPTIONS) -
-ifneq ($(DOWNLOAD_LINUX_VERSION),$(LINUX_VERSION))
- # Rename the dir from the downloaded version to the AFTER patch version
- mv -f $(BUILD_DIR)/linux-$(DOWNLOAD_LINUX_VERSION) $(BUILD_DIR)/linux-$(LINUX_VERSION)
-endif
- mkdir -p package/linux/kernel-patches
- toolchain/patch-kernel.sh $(LINUX_DIR) package/linux/kernel-patches
+ # 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 $(BUILD_DIR)/linux/.configured: $(LINUX_DIR)/.unpacked $(LINUX_KCONFIG)
- $(SED) "s,^CROSS_COMPILE.*,CROSS_COMPILE=$(KERNEL_CROSS),g;" $(LINUX_DIR)/Makefile
+$(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
$(MAKE) -C $(LINUX_DIR) ARCH=$(LINUX_KARCH) oldconfig include/linux/version.h
touch $(LINUX_DIR)/.configured
cp -fa $(LINUX_DIR)/$(LINUX_BINLOC) $(LINUX_KERNEL)
touch -c $(LINUX_KERNEL)
-$(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep: $(LINUX_KERNEL)
- rm -rf $(TARGET_DIR)/lib/modules
- rm -f $(TARGET_DIR)/sbin/cardmgr
- $(MAKE) -C $(LINUX_DIR) INSTALL_MOD_PATH=$(TARGET_DIR) modules_install
- (cd $(TARGET_DIR)/lib/modules; ln -s $(LINUX_VERSION)/kernel/drivers .)
+$(LINUX_DIR)/.modules_done: $(LINUX_KERNEL)
+ rm -rf $(BUILD_DIR)/modules
+ $(MAKE) -C $(LINUX_DIR) DEPMOD=true INSTALL_MOD_PATH=$(BUILD_DIR)/modules modules_install
+ 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: $(STAGING_DIR)/include/linux/version.h $(TARGET_DIR)/lib/modules/$(LINUX_VERSION)/modules.dep
+$(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)
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