Makefile

   1 # Makefile for user-mode-linux with a simple busybox/uClibc root filesystem
   2 #
   3 # Copyright (C) 2001 by Erik Andersen <andersen@codepoet.org>
   4 # Copyright (C) 2001 by Alcove, Julien Gaulmin <julien.gaulmin@fr.alcove.com>
   5 # Copyright (C) 2001 by Jon Nelson <jnelson@boa.org>
   6 #
   7 # This program is free software; you can redistribute it and/or modify it under
   8 # the terms of the GNU Library General Public License as published by the Free
   9 # Software Foundation; either version 2 of the License, or (at your option) any
  10 # later version.
  11 #
  12 # This program is distributed in the hope that it will be useful, but WITHOUT
  13 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  14 # FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more
  15 # details.
  16 #
  17 # You should have received a copy of the GNU Library General Public License
  18 # along with this program; if not, write to the Free Software Foundation, Inc.,
  19 # 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  20
  21 # Known problems :
  22 #  - genext2fs: couldn't allocate a block (no free space)
  23 #    As genext2fs allocate only one group of blocks, the FS size
  24 #    is limited to 8Mb.
  25
  26 # Update this stuff by hand :
  27 ARCH = i386
  28 # If you are running a cross compiler, you may want to set this
  29 # to something more interesting, like "arm-linux-".
  30 #CROSS = $(ARCH)-linux-
  31
  32 #IMAGE_SIZE=8192 # Max size
  33 #IMAGE_INODES=500
  34 IMAGE_SIZE=550 # library is 550K
  35 IMAGE_INODES=300
  36
  37 LINUX_SOURCE=linux-2.4.14.tar.bz2
  38 USERMODELINUX_PATCH=uml-patch-2.4.14-6.bz2
  39 UCLIBC_SOURCE=uClibc-snapshot.tar.gz
  40
  41 LINUX_URI=http://www.kernel.org/pub/linux/kernel/v2.4
  42 USERMODELINUX_URI=http://prdownloads.sourceforge.net/user-mode-linux
  43 UCLIBC_URI=http://uclibc.org/downloads/
  44
  45 # Don't alter below this line unless you (think) you know
  46 # what you are doing! Danger, Danger!
  47
  48 .SUFFIXES:            # Delete the default suffixes
  49 .SUFFIXES: .c .o .h   # Define our suffix list
  50
  51 # Directories
  52 BASE_DIR=${shell pwd}
  53 TARGET_DIR=$(BASE_DIR)/root
  54 STAGING_DIR=$(BASE_DIR)/staging_dir
  55 SOURCE_DIR=$(BASE_DIR)/sources
  56 LINUX_DIR=$(BASE_DIR)/linux
  57 UCLIBC_DIR=$(BASE_DIR)/uClibc
  58 GENEXT2FS_DIR=$(BASE_DIR)/genext2fs
  59
  60 TARGET_CC=$(STAGING_DIR)/bin/gcc
  61 TARGET_CC1=$(STAGING_DIR)/usr/bin/$(ARCH)-uclibc-gcc
  62 TARGET_CROSS=$(STAGING_DIR)/usr/bin/$(ARCH)-uclibc-
  63 TARGET_PATH=$(STAGING_DIR)/usr/bin:$(STAGING_DIR)/bin:/bin:/sbin:/usr/bin:/usr/sbin
  64
  65 LINUX=$(BASE_DIR)/UMlinux
  66 IMAGE=$(BASE_DIR)/root_fs
  67
  68 KCONFIG=$(SOURCE_DIR)/linux-uml.config
  69
  70 all:   world
  71
  72 #So what shall we build today?
  73 TARGETS=
  74
  75 -include busybox.mk
  76 -include boa.mk
  77
  78 world:  $(TARGETS) $(GENEXT2FS_DIR)/genext2fs $(TARGET_DIR)
  79         $(GENEXT2FS_DIR)/genext2fs \
  80          -b `echo $(IMAGE_SIZE) | bc` \
  81          -i `echo $(IMAGE_INODES) | bc` \
  82          -d $(TARGET_DIR) \
  83          -D $(SOURCE_DIR)/device_table.txt root_fs
  84
  85 $(STAGING_DIR):
  86         rm -rf $(STAGING_DIR)
  87         mkdir $(STAGING_DIR)
  88
  89 $(TARGET_DIR):
  90         rm -rf $(TARGET_DIR)
  91         tar -xf $(SOURCE_DIR)/skel.tar
  92
  93 # The kernel
  94 $(SOURCE_DIR)/$(LINUX_SOURCE):
  95         while [ ! -f $(SOURCE_DIR)/$(LINUX_SOURCE) ] ; do \
  96                 wget -P $(SOURCE_DIR) --passive $(LINUX_URI)/$(LINUX_SOURCE); \
  97         done
  98
  99 $(LINUX_DIR)/.unpacked: $(SOURCE_DIR)/$(LINUX_SOURCE)
 100         bunzip2 -c $(SOURCE_DIR)/$(LINUX_SOURCE) | tar -xv
 101         touch $(LINUX_DIR)/.unpacked
 102
 103 $(SOURCE_DIR)/$(USERMODELINUX_PATCH):
 104         while [ ! -f $(SOURCE_DIR)/$(USERMODELINUX_PATCH) ] ; do \
 105                 wget -P $(SOURCE_DIR) --passive $(USERMODELINUX_URI)/$(USERMODELINUX_PATCH); \
 106         done
 107
 108 $(LINUX_DIR)/.patched:  $(LINUX_DIR)/.unpacked $(SOURCE_DIR)/$(USERMODELINUX_PATCH)
 109         bzcat $(SOURCE_DIR)/$(USERMODELINUX_PATCH) | patch -d $(LINUX_DIR) -p1
 110         touch $(LINUX_DIR)/.patched
 111
 112 $(LINUX_DIR)/.um:       $(LINUX_DIR)/.patched
 113         sed -e 's/^ARCH :=.*/ARCH=um/g' < $(LINUX_DIR)/Makefile > $(LINUX_DIR)/Makefile.new && mv -f $(LINUX_DIR)/Makefile.new $(LINUX_DIR)/Makefile
 114         touch $(LINUX_DIR)/.um
 115
 116 $(LINUX_DIR)/.configdone:       $(LINUX_DIR)/.um
 117         cp -f $(KCONFIG) $(LINUX_DIR)/.config
 118         make -C $(LINUX_DIR) oldconfig menuconfig
 119         touch $(LINUX_DIR)/.configdone
 120
 121 $(LINUX_DIR)/.dep:      $(LINUX_DIR)/.configdone
 122         make -C $(LINUX_DIR) dep
 123         touch $(LINUX_DIR)/.dep
 124
 125 $(LINUX_DIR)/linux:     $(LINUX_DIR)/.dep
 126         (cd $(LINUX_DIR); make linux)
 127
 128 $(LINUX): $(LINUX_DIR)/linux
 129         ln -sf $(LINUX_DIR)/linux $(LINUX)
 130
 131 # uClibc
 132 $(SOURCE_DIR)/$(UCLIBC_SOURCE):
 133         while [ ! -f $(SOURCE_DIR)/$(UCLIBC_SOURCE) ] ; do \
 134             wget -P $(SOURCE_DIR) --passive $(UCLIBC_URI)/$(UCLIBC_SOURCE) ; \
 135         done;
 136
 137 $(UCLIBC_DIR)/Config:   $(SOURCE_DIR)/$(UCLIBC_SOURCE)
 138         tar -xzf $(SOURCE_DIR)/$(UCLIBC_SOURCE)
 139         for p in `find $(SOURCE_DIR) -name uClibc-*.patch | sort -g`;do \
 140                 patch -p0 < $$p ; \
 141         done
 142         awk 'BEGIN { FS=" ="; REG="DODEBUG|DOLFS|INCLUDE_RPC|DOPIC";} \
 143         {  if ($$0 ~ "^" REG) { print $$1 " = false" } else { print $$0 } }' < \
 144         $(UCLIBC_DIR)/extra/Configs/Config.$(ARCH) > $(UCLIBC_DIR)/Config;
 145
 146 $(UCLIBC_DIR)/lib/libc.a:       $(LINUX) $(UCLIBC_DIR)/Config
 147         $(MAKE) CROSS=$(CROSS) \
 148                 DEVEL_PREFIX=$(STAGING_DIR) \
 149                 SYSTEM_DEVEL_PREFIX=$(STAGING_DIR)/usr \
 150                 SHARED_LIB_LOADER_PATH=/lib \
 151                 KERNEL_SOURCE=$(LINUX_DIR) \
 152                 -C $(UCLIBC_DIR)
 153
 154 uclibc: $(UCLIBC_DIR)/lib/libc.a $(STAGING_DIR) $(TARGET_DIR)
 155         @A=`cksum $(STAGING_DIR)/lib/libuClibc-0.9.5.so 2>/dev/null | awk '{ print $$1 }'`; \
 156         B=`cksum $(UCLIBC_DIR)/lib/libuClibc-0.9.5.so 2>/dev/null | awk '{ print $$1 }'`; \
 157         if [ "$$A" != "$$B" ] ; then \
 158                 set -x; \
 159                 $(MAKE) \
 160                 DEVEL_PREFIX=$(STAGING_DIR) \
 161                 SYSTEM_DEVEL_PREFIX=$(STAGING_DIR)/usr \
 162                 SHARED_LIB_LOADER_PATH=$(STAGING_DIR)/lib \
 163                 -C $(UCLIBC_DIR) install; \
 164         fi;
 165         @A=`cksum $(TARGET_DIR)/lib/libuClibc-0.9.5.so 2>/dev/null | awk '{ print $$1 }'`; \
 166         B=`cksum $(UCLIBC_DIR)/lib/libuClibc-0.9.5.so 2>/dev/null | awk '{ print $$1 }'`; \
 167         if [ "$$A" != "$$B" ] ; then \
 168                 set -x; \
 169                 $(MAKE) \
 170                 PREFIX=$(TARGET_DIR) \
 171                 DEVEL_PREFIX=/ \
 172                 SYSTEM_DEVEL_PREFIX=/usr \
 173                 SHARED_LIB_LOADER_PATH=/lib \
 174                 -C $(UCLIBC_DIR) install_runtime; \
 175         fi
 176
 177 # genext2fs
 178 $(GENEXT2FS_DIR)/genext2fs:
 179         $(MAKE) -C $(GENEXT2FS_DIR)
 180
 181 # others
 182 clean:  $(TARGETS_CLEAN)
 183         make -C $(GENEXT2FS_DIR) clean
 184         @if [ -d $(UCLIBC_DIR) ] ; then \
 185                 make -C $(UCLIBC_DIR) clean; \
 186         fi;
 187         @if [ -d $(LINUX_DIR) ] ; then \
 188                 make -C $(UCLIBC_DIR) clean; \
 189         fi;
 190         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
 191         rm -f *~
 192
 193 mrproper: $(TARGETS_MRPROPER)
 194         rm -rf $(UCLIBC_DIR);
 195         rm -rf $(LINUX_DIR);
 196         rm -f root_fs $(LINUX)
 197         make -C $(GENEXT2FS_DIR) clean
 198         rm -rf $(STAGING_DIR) $(TARGET_DIR) $(IMAGE)
 199         rm -f *~
 200
 201 distclean: mrproper $(TARGETS_DISTCLEAN)
 202         rm -f $(SOURCE_DIR)/$(UCLIBC_SOURCE)
 203         rm -f $(SOURCE_DIR)/$(USERMODELINUX_PATCH)
 204         rm -f $(SOURCE_DIR)/$(LINUX_SOURCE)
 205
 206 .PHONY: uclibc $(TARGETS) world test clean mrproper distclean