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# Makefile for user-mode-linux with a simple busybox/uClibc root filesystem
#
# Copyright (C) 2001 by Erik Andersen <andersen@codepoet.org>
# Copyright (C) 2001 by Alcove, Julien Gaulmin <julien.gaulmin@fr.alcove.com>
# Copyright (C) 2001 by Jon Nelson <jnelson@boa.org>
#
# This program is free software; you can redistribute it and/or modify it under
# the terms of the GNU Library General Public License as published by the Free
# Software Foundation; either version 2 of the License, or (at your option) any
# later version.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
# details.
#
# You should have received a copy of the GNU Library General Public License
# along with this program; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
# Known problems :
# - genext2fs: couldn't allocate a block (no free space)
# As genext2fs allocate only one group of blocks, the FS size
# is limited to 8Mb.
# Update this stuff by hand :
ARCH = i386
# If you are running a cross compiler, you may want to set this
# to something more interesting, like "arm-linux-".
#CROSS = $(ARCH)-linux-
#IMAGE_SIZE=8192 # Max size
#IMAGE_INODES=500
IMAGE_SIZE=550 # library is 550K
IMAGE_INODES=300
LINUX_SOURCE=linux-2.4.17.tar.bz2
LINUX_URI=http://www.kernel.org/pub/linux/kernel/v2.4
USERMODELINUX_PATCH=uml-patch-2.4.17-3.bz2
USERMODELINUX_URI=http://prdownloads.sourceforge.net/user-mode-linux
UCLIBC_SOURCE=uClibc-snapshot.tar.gz
UCLIBC_URI=http://www.uclibc.org/downloads/
# Don't alter below this line unless you (think) you know
# what you are doing! Danger, Danger!
.SUFFIXES: # Delete the default suffixes
.SUFFIXES: .c .o .h # Define our suffix list
# Directories
BASE_DIR=${shell pwd}
TARGET_DIR=$(BASE_DIR)/root
STAGING_DIR=$(BASE_DIR)/staging_dir
SOURCE_DIR=$(BASE_DIR)/sources
LINUX_DIR=$(BASE_DIR)/linux
UCLIBC_DIR=$(BASE_DIR)/uClibc
GENEXT2FS_DIR=$(BASE_DIR)/genext2fs
TARGET_CC=$(STAGING_DIR)/bin/gcc
TARGET_CC1=$(STAGING_DIR)/usr/bin/$(ARCH)-uclibc-gcc
TARGET_CROSS=$(STAGING_DIR)/usr/bin/$(ARCH)-uclibc-
TARGET_PATH=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
LINUX=$(BASE_DIR)/UMlinux
IMAGE=$(BASE_DIR)/root_fs
KCONFIG=$(SOURCE_DIR)/linux-uml.config
all: world
#So what shall we build today?
TARGETS=
-include busybox.mk
-include boa.mk
world: $(TARGETS) $(GENEXT2FS_DIR)/genext2fs $(TARGET_DIR)
$(GENEXT2FS_DIR)/genext2fs \
-b `echo $(IMAGE_SIZE) | bc` \
-i `echo $(IMAGE_INODES) | bc` \
-d $(TARGET_DIR) \
-D $(SOURCE_DIR)/device_table.txt root_fs
$(STAGING_DIR):
rm -rf $(STAGING_DIR)
mkdir $(STAGING_DIR)
$(TARGET_DIR):
rm -rf $(TARGET_DIR)
tar -xf $(SOURCE_DIR)/skel.tar
cp -a target_skeleton/* $(TARGET_DIR)/
-find $(TARGET_DIR) -type d -name CVS -exec rm -rf {} \; > /dev/null 2>&1
# The kernel
$(SOURCE_DIR)/$(LINUX_SOURCE):
while [ ! -f $(SOURCE_DIR)/$(LINUX_SOURCE) ] ; do \
wget -P $(SOURCE_DIR) --passive $(LINUX_URI)/$(LINUX_SOURCE); \
done
$(LINUX_DIR)/.unpacked: $(SOURCE_DIR)/$(LINUX_SOURCE)
bunzip2 -c $(SOURCE_DIR)/$(LINUX_SOURCE) | tar -xv
touch $(LINUX_DIR)/.unpacked
$(SOURCE_DIR)/$(USERMODELINUX_PATCH):
while [ ! -f $(SOURCE_DIR)/$(USERMODELINUX_PATCH) ] ; do \
wget -P $(SOURCE_DIR) --passive $(USERMODELINUX_URI)/$(USERMODELINUX_PATCH); \
done
$(LINUX_DIR)/.patched: $(LINUX_DIR)/.unpacked $(SOURCE_DIR)/$(USERMODELINUX_PATCH)
bzcat $(SOURCE_DIR)/$(USERMODELINUX_PATCH) | patch -d $(LINUX_DIR) -p1
cp -f $(KCONFIG) $(LINUX_DIR)/.config
touch $(LINUX_DIR)/.patched
$(LINUX_DIR)/.um: $(LINUX_DIR)/.patched
sed -e 's/^ARCH :=.*/ARCH=um/g' < $(LINUX_DIR)/Makefile > \
$(LINUX_DIR)/Makefile.new && mv -f \
$(LINUX_DIR)/Makefile.new $(LINUX_DIR)/Makefile
touch $(LINUX_DIR)/.um
$(LINUX_DIR)/.configdone: $(LINUX_DIR)/.um
make -C $(LINUX_DIR) oldconfig
touch $(LINUX_DIR)/.configdone
$(LINUX_DIR)/.dep: $(LINUX_DIR)/.configdone
make -C $(LINUX_DIR) dep
touch $(LINUX_DIR)/.dep
$(LINUX_DIR)/linux: $(LINUX_DIR)/.dep
(cd $(LINUX_DIR); make linux)
$(LINUX): $(LINUX_DIR)/linux
ln -sf $(LINUX_DIR)/linux $(LINUX)
# uClibc
$(SOURCE_DIR)/$(UCLIBC_SOURCE):
while [ ! -f $(SOURCE_DIR)/$(UCLIBC_SOURCE) ] ; do \
wget -P $(SOURCE_DIR) --passive $(UCLIBC_URI)/$(UCLIBC_SOURCE) ; \
done;
$(UCLIBC_DIR)/Config: $(SOURCE_DIR)/$(UCLIBC_SOURCE)
tar -xzf $(SOURCE_DIR)/$(UCLIBC_SOURCE)
for p in `find $(SOURCE_DIR) -name uClibc-*.patch | sort -g`;do \
patch -p0 < $$p ; \
done
awk 'BEGIN { FS=" ="; REG="DODEBUG|DOLFS|INCLUDE_RPC|DOPIC";} \
{ if ($$0 ~ "^" REG) { print $$1 " = false" } else { print $$0 } }' < \
$(UCLIBC_DIR)/extra/Configs/Config.$(ARCH) > $(UCLIBC_DIR)/Config;
$(UCLIBC_DIR)/lib/libc.a: $(LINUX) $(UCLIBC_DIR)/Config
$(MAKE) CROSS=$(CROSS) \
DEVEL_PREFIX=$(STAGING_DIR) \
SYSTEM_DEVEL_PREFIX=$(STAGING_DIR)/usr \
SHARED_LIB_LOADER_PATH=/lib \
KERNEL_SOURCE=$(LINUX_DIR) \
-C $(UCLIBC_DIR)
uclibc: $(UCLIBC_DIR)/lib/libc.a $(STAGING_DIR) $(TARGET_DIR)
@if [ $(UCLIBC_DIR)/lib/libc.a -nt $(UCLIBC_DIR)/.installed ]; then \
rm -f $(UCLIBC_DIR)/.installed; \
set -x; \
$(MAKE) \
DEVEL_PREFIX=$(STAGING_DIR) \
SYSTEM_DEVEL_PREFIX=$(STAGING_DIR)/usr \
SHARED_LIB_LOADER_PATH=$(STAGING_DIR)/lib \
-C $(UCLIBC_DIR) install; \
touch $(UCLIBC_DIR)/.installed ; \
fi
@if [ $(UCLIBC_DIR)/lib/libc.a -nt $(UCLIBC_DIR)/.installed_runtime ]; then \
rm -f $(UCLIBC_DIR)/.installed_runtime; \
$(MAKE) \
PREFIX=$(TARGET_DIR) \
DEVEL_PREFIX=/ \
SYSTEM_DEVEL_PREFIX=/usr \
SHARED_LIB_LOADER_PATH=/lib \
-C $(UCLIBC_DIR) install_runtime; \
touch $(UCLIBC_DIR)/.installed_runtime ; \
fi
# genext2fs
$(GENEXT2FS_DIR)/genext2fs:
$(MAKE) -C $(GENEXT2FS_DIR)
# others
clean: $(TARGETS_CLEAN)
make -C $(GENEXT2FS_DIR) clean
@if [ -d $(UCLIBC_DIR) ] ; then \
make -C $(UCLIBC_DIR) clean; \
fi;
@if [ -d $(LINUX_DIR) ] ; then \
make -C $(UCLIBC_DIR) clean; \
fi;
rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
rm -f *~
mrproper: $(TARGETS_MRPROPER)
rm -rf $(UCLIBC_DIR);
rm -rf $(LINUX_DIR);
rm -f root_fs $(LINUX)
make -C $(GENEXT2FS_DIR) clean
rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
rm -f *~
distclean: mrproper $(TARGETS_DISTCLEAN)
rm -f $(SOURCE_DIR)/$(UCLIBC_SOURCE)
rm -f $(SOURCE_DIR)/$(USERMODELINUX_PATCH)
rm -f $(SOURCE_DIR)/$(LINUX_SOURCE)
.PHONY: uclibc $(TARGETS) world test clean mrproper distclean
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