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Makefile
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#!/usr/bin/make -f
# BIG LIST OF TODO AND FIXME
# TODO: similar naming convention (src/kernel vs build/linux)
# TODO: Macros / Functions to make somewhat more readable code for the downloads
# alternative, makepkg implementation
################################################################################
# Variables #
################################################################################
SRC ?=$(PWD)/src
BUILD ?=$(PWD)/build
DOCS ?=$(PWD)/docs
# Optimize, strip, protect against bad implementations
CFLAGS ?=-O3 -s -U_FORTIFY_SOURCE
NUM_JOBS=8
MAKE=make -j $(NUM_JOBS)
################################################################################
# Special Targets #
################################################################################
.DEFAULT: help
.PHONY: info
info:
@echo "targets: "
@echo ""
@echo " all build the livecd iso file"
@echo ""
@echo " clean clean build/*"
@echo " clean_src clean all downloads"
@echo ""
@echo " qemu run qemu with the livecd"
@echo ""
.PHONY: all
all: $(BUILD)/pigeon_linux_live.iso
.PHONY: clean
clean:
rm -rf $(BUILD)/*
.PHONY: clean_src
clean_src:
rm -rf $(SRC)/linux-*.tar.xz $(SRC)/linux
rm -rf $(SRC)/glibc-*.tar.xz $(SRC)/glibc
rm -rf $(SRC)/busybox-*.tar.bz2 $(SRC)/busybox
rm -rf $(SRC)/syslinux-*.tar.xz $(SRC)/syslinux
rm -rf $(SRC)/sinit-*tar.bz2 $(SRC)/sinit
rm -rf $(SRC)/kbd-*.tar.xz $(SRC)/kbd
.POHNY: qemu
qemu: $(BUILD)/pigeon_linux_live.iso
# if you get a "write error no space left error", throw more ram at it
qemu-system-x86_64 -m 64M -cdrom $< -boot d -vga std
################################################################################
# Source downloading #
################################################################################
# TODO: signature and hash checking
# linux kernel
LINUX_KERNEL_VERSION=4.9.20
LINUX_KERNEL_DOWNLOAD_FILE=linux-$(LINUX_KERNEL_VERSION).tar.xz
LINUX_KERNEL_DOWNLOAD_URL=https://cdn.kernel.org/pub/linux/kernel/v4.x/$(LINUX_KERNEL_DOWNLOAD_FILE)
$(SRC)/$(LINUX_KERNEL_DOWNLOAD_FILE):
rm -rf $@ && wget $(LINUX_KERNEL_DOWNLOAD_URL) -O $@
$(SRC)/linux: $(SRC)/$(LINUX_KERNEL_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
# glibc
GLIBC_VERSION=2.25
GLIBC_DOWNLOAD_FILE=glibc-$(GLIBC_VERSION).tar.xz
GLIBC_DOWNLOAD_URL=https://ftp.gnu.org/gnu/libc/$(GLIBC_DOWNLOAD_FILE)
$(SRC)/$(GLIBC_DOWNLOAD_FILE):
rm -rf $@ && wget $(GLIBC_DOWNLOAD_URL) -O $@
$(SRC)/glibc: $(SRC)/$(GLIBC_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
# busybox
BUSYBOX_VERSION=1.26.2
BUSYBOX_DOWNLOAD_FILE=busybox-$(BUSYBOX_VERSION).tar.bz2
BUSYBOX_DOWNLOAD_URL=https://busybox.net/downloads/$(BUSYBOX_DOWNLOAD_FILE)
$(SRC)/$(BUSYBOX_DOWNLOAD_FILE):
rm -rf $@ && wget $(BUSYBOX_DOWNLOAD_URL) -O $@
$(SRC)/busybox: $(SRC)/$(BUSYBOX_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
# syslinux
SYSLINUX_VERSION=6.03
SYSLINUX_DOWNLOAD_FILE=syslinux-$(SYSLINUX_VERSION).tar.xz
SYSLINUX_DOWNLOAD_URL=https://cdn.kernel.org/pub/linux/utils/boot/syslinux/$(SYSLINUX_DOWNLOAD_FILE)
$(SRC)/$(SYSLINUX_DOWNLOAD_FILE):
rm -rf $@ && wget $(SYSLINUX_DOWNLOAD_URL) -O $@
$(SRC)/syslinux: $(SRC)/$(SYSLINUX_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
# sinit (suckless init MIT license)
SINIT_VERSION=1.0
SINIT_DOWNLOAD_FILE=sinit-$(SINIT_VERSION).tar.bz2
SINIT_DOWNLOAD_URL=http://git.suckless.org/sinit/snapshot/$(SINIT_DOWNLOAD_FILE)
# FIXME: insecure http used
$(SRC)/$(SINIT_DOWNLOAD_FILE):
rm -rf $@ && wget $(SINIT_DOWNLOAD_URL) -O $@
$(SRC)/sinit: $(SRC)/$(SINIT_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
# kbd (linux keyboard tools)
KBD_VERSION=2.0.4
KBD_DOWNLOAD_FILE=kbd-$(KBD_VERSION).tar.xz
KBD_DOWNLOAD_URL=https://cdn.kernel.org/pub/linux/utils/kbd/$(KBD_DOWNLOAD_FILE)
$(SRC)/$(KBD_DOWNLOAD_FILE):
rm -rf $@ && wget $(KBD_DOWNLOAD_URL) -O $@
$(SRC)/kbd: $(SRC)/$(KBD_DOWNLOAD_FILE)
rm -rf $@ && mkdir -p $@
tar -xvf $< -C $@ --strip-components=1 && touch $@
################################################################################
# Linux kernel #
################################################################################
LINUX_KERNEL_MAKE=$(MAKE) -C $(SRC)/linux O=$(BUILD)/linux
KERNEL=$(BUILD)/linux/arch/x86/boot/bzImage
KERNEL_IMAGE=$(BUILD)/linux/arch/x86/boot/bzImage
# Generate the default config for the kernel
$(BUILD)/linux/.config: $(SRC)/linux
rm -rf $(@D) && mkdir -p $(@D)
$(LINUX_KERNEL_MAKE) defconfig
# Enable VESA framebuffer support
sed -i "s/.*CONFIG_FB_VESA.*/CONFIG_FB_VESA=y/" "$@"
# disable the boot logo
sed -i "s/.*CONFIG_LOGO_LINUX_CLUT224.*/\\# CONFIG_LOGO_LINUX_CLUT224 is not set/" "$@"
# enable the efi stub
sed -i "s/.*CONFIG_EFI_STUB.*/CONFIG_EFI_STUB=y/" $@
# enable it for 64 bit too
echo "CONFIG_EFI_MIXED=y" >> $@
# compile the kernel and modules
$(KERNEL_IMAGE): $(BUILD)/linux/.config
@echo "building bzImage"
$(LINUX_KERNEL_MAKE) bzImage
@echo "building modules"
$(LINUX_KERNEL_MAKE) modules
# install the kernel headers
$(BUILD)/install/linux/usr/include: $(BUILD)/linux/.config
rm -rf $@ && mkdir -p $@
$(LINUX_KERNEL_MAKE) INSTALL_HDR_PATH=$(@D) headers_install
touch $@
# install the kernel modules and firmware
$(BUILD)/install/linux/usr/lib: $(BUILD)/linux/.config
mkdir -p $@ && rm -rf $@/* && mkdir -p $@/modules $@/firmware
$(LINUX_KERNEL_MAKE) modules
$(LINUX_KERNEL_MAKE) INSTALL_MOD_PATH=$(BUILD)/install/linux/usr modules_install
$(LINUX_KERNEL_MAKE) INSTALL_FW_PATH=$(BUILD)/install/linux/usr/lib/firmware firmware_install
touch $@
$(BUILD)/install/linux: $(BUILD)/install/linux/usr/include \
$(BUILD)/install/linux/usr/lib
touch $@
################################################################################
# glibc #
################################################################################
# configure glibc for compile
$(BUILD)/glibc/Makefile: $(SRC)/glibc $(BUILD)/install/linux
rm -rf $(@D) && mkdir -p $(@D)
cd "$(@D)" && $(SRC)/glibc/configure \
--prefix=/usr \
--libexecdir=/usr/lib \
--with-headers="$(BUILD)/install/linux/usr/include" \
--with-kernel=4.0.0 \
--without-gd \
--without-selinux \
--disable-werror \
--enable-add-ons \
--enable-stack-protector \
CFLAGS="$(CFLAGS)" \
libc_cv_slibdir=/usr/lib # lib is symlinked to /usr/lib
touch $@
# build glibc
$(BUILD)/glibc: $(BUILD)/glibc/Makefile
$(MAKE) -C $(BUILD)/glibc && touch $@
# install glibc
$(BUILD)/install/glibc: $(BUILD)/glibc
rm -rf $@ && mkdir -p $@
$(MAKE) -C $(BUILD)/glibc DESTDIR=$@ install && touch $@
################################################################################
# sysroot #
################################################################################
SYSROOT=$(BUILD)/sysroot
# create a sysroot (headers and libraries)
$(SYSROOT): $(BUILD)/install/linux $(BUILD)/install/glibc
rm -rf $@/ && mkdir -p $@
ln -s usr/bin $@/bin
ln -s usr/sbin $@/sbin
ln -s usr/lib $@/lib
ln -s usr/lib $@/lib64
mkdir -p $@/usr
ln -s lib $@/usr/lib64
rsync -rlpgoDvrK $(BUILD)/install/glibc/ $@/
rsync -rlpgoDvrK $(BUILD)/install/linux/ $@/
touch $@
################################################################################
# busybox #
################################################################################
# Escape / and \ because sed uses them for magic
SYSROOT_ESCAPED=$(subst /,\/,$(subst \,\\,$(SYSROOT)))
# TODO: remove as many flags and recompile busybox to see which are actually needed
BUSYBOX_MAKE=$(MAKE) -C $(SRC)/busybox O=$(BUILD)/busybox CFLAGS="$(CFLAGS) -fomit-frame-pointer"
$(BUILD)/busybox/.config: $(SRC)/busybox $(SYSROOT)
mkdir -p $(@D) && rm -rf $(@D)/*
$(BUSYBOX_MAKE) defconfig
cd $(@D) && sed -i 's/.*CONFIG_SYSROOT.*/CONFIG_SYSROOT="$(SYSROOT_ESCAPED)"/g' .config
$(BUILD)/busybox: $(BUILD)/busybox/.config $(SYSROOT)
$(BUSYBOX_MAKE) all && touch $@
$(BUILD)/install/busybox: $(BUILD)/busybox
$(BUSYBOX_MAKE) CONFIG_PREFIX=$@ install
################################################################################
# sinit #
################################################################################
$(BUILD)/sinit: $(SRC)/sinit $(SYSROOT)
rm -rf $@ && mkdir -p $@
rsync -rlpgoDvrK $<& $@/
$(MAKE) -C $(BUILD)/sinit all CFLAGS="$(CFLAGS) --sysroot=$(SYSROOT)" && touch $@
$(BUILD)/install/sinit: $(BUILD)/sinit
rm -rf $@ && mkdir -p $@
$(MAKE) -C $(BUILD)/sinit PREFIX=/usr DESTDIR=$@ install && touch $@
################################################################################
# kbd #
################################################################################
$(BUILD)/kbd/Makefile: $(SRC)/kbd $(SYSROOT)
rm -rf $(@D) && mkdir -p $(@D)
cd $(@D) && $(SRC)/kbd/configure
--prefix=/usr \
--with-sysroot=$(SYSROOT) \
--datadir=/usr/share/kbd \
--mandir=/usr/share/man && \
touch $@
$(BUILD)/kbd: $(BUILD)/kbd/Makefile $(SYSROOT)
$(MAKE) -C $(BUILD)/kbd all && touch $@
$(BUILD)/install/kbd: $(BUILD)/kbd
rm -rf $@ && mkdir -p $@
$(MAKE) -C $(BUILD)/kbd DESTDIR=$@ install && touch $@
################################################################################
# rootfs #
################################################################################
$(BUILD)/rootfs: $(BUILD)/install/busybox $(BUILD)/install/sinit \
$(SYSROOT) $(BUILD)/install/kbd \
$(BUILD)/install/linux
rm -rf $@ && mkdir -p $@
# Create the basic filesystem (please keep this sorted)
ln -s usr/bin $@/bin
install -d -m 0755 $@/boot
install -d -m 0755 $@/dev
install -d -m 0755 $@/dev/pts
install -d -m 0755 $@/dev/shm
install -d -m 0755 $@/etc
install -d -m 0755 $@/etc/opt
ln -s ../proc/self/mounts $@/etc/mtab
install -d -m 0755 $@/home
ln -s usr/lib $@/lib
ln -s usr/lib $@/lib64
install -d -m 0755 $@/media
install -d -m 0755 $@/mnt
install -d -m 0755 $@/opt
install -d -m 0555 $@/proc
install -d -m 0750 $@/root
install -d -m 0755 $@/run
ln -s usr/sbin $@/sbin
install -d -m 0555 $@/sys
install -d -m 1777 $@/tmp
install -d -m 0755 $@/usr
install -d -m 0755 $@/usr/bin
install -d -m 0755 $@/usr/include
install -d -m 0755 $@/usr/lib
#install -d -m 0755 $@/usr/lib32
ln -s lib $@/usr/lib64
# Note: please use lib instead of libexec
install -d -m 0755 $@/usr/local
install -d -m 0755 $@/usr/local/bin
install -d -m 0755 $@/usr/local/etc
install -d -m 0755 $@/usr/local/games
install -d -m 0755 $@/usr/local/include
install -d -m 0755 $@/usr/local/lib
ln -s lib $@/usr/local/lib64
install -d -m 0755 $@/usr/local/man
install -d -m 0755 $@/usr/local/sbin
install -d -m 0755 $@/usr/local/share
install -d -m 0755 $@/usr/local/src
install -d -m 0755 $@/usr/sbin
install -d -m 0755 $@/usr/share
install -d -m 0755 $@/usr/share/man
install -d -m 0755 $@/usr/share/man/man{1,2,3,4,5,6,7,8}
install -d -m 0755 $@/usr/share/misc
install -d -m 0755 $@/usr/src
install -d -m 0755 $@/var
install -d -m 0755 $@/var/cache
install -d -m 0755 $@/var/lib
install -d -m 0755 $@/var/lock
install -d -m 0755 $@/var/log
ln -s spool/mail $@/var/mail
install -d -m 0755 $@/var/opt
ln -s ../run $@/var/run
install -d -m 0755 $@/var/spool
install -d -m 0755 $@/var/spool/cron
install -d -m 1777 $@/var/spool/mail
install -d -m 1777 $@/var/tmp
# install the files
install -m 0644 $(SRC)/filesystem/etc/fstab $@/etc/fstab
install -m 0644 $(SRC)/filesystem/etc/group $@/etc/group
install -m 0600 $(SRC)/filesystem/etc/gshadow $@/etc/gshadow
install -m 0644 $(SRC)/filesystem/etc/hostname $@/etc/hostname
install -m 0644 $(SRC)/filesystem/etc/hosts $@/etc/hosts
install -m 0644 $(SRC)/filesystem/etc/issue $@/etc/issue
install -m 0644 $(SRC)/filesystem/etc/motd $@/etc/motd
install -m 0644 $(SRC)/filesystem/etc/os-version $@/etc/os-version
install -m 0644 $(SRC)/filesystem/etc/passwd $@/etc/passwd
install -m 0644 $(SRC)/filesystem/etc/profile $@/etc/profile
install -m 0644 $(SRC)/filesystem/etc/securetty $@/etc/securetty
install -m 0600 $(SRC)/filesystem/etc/shadow $@/etc/shadow
install -m 0644 $(SRC)/filesystem/etc/shells $@/etc/shells
cp $(SYSROOT)/usr/lib/ld-linux* $@/usr/lib
cp $(SYSROOT)/usr/lib/libm.so.6 $@/usr/lib
cp $(SYSROOT)/usr/lib/libc.so.6 $@/usr/lib
rsync -rlpgoDvrK $(BUILD)/install/linux/ $@/
rsync -rlpgoDvrK $(BUILD)/install/kbd/ $@/
rsync -rlpgoDvrK $(BUILD)/install/sinit/ $@/
# link the init system
ln -sf usr/bin/sinit $@/init
ln -sf ../usr/bin/sinit $@/sbin/init
rsync -rlpgoDvr --ignore-existing $(BUILD)/install/busybox/ $@/
rm -f $@/linuxrc
# update the date on the directory itself
touch $@
################################################################################
# initrd.cpio.gz #
################################################################################
$(BUILD)/initramfs: $(SRC)/initfs $(BUILD)/rootfs
rm -rf $@ && mkdir -p $@
rsync -avr $(BUILD)/rootfs/ $@/
rsync -avrK $(SRC)/initfs/ $@/
touch $@
$(BUILD)/initrd.cpio.gz: $(BUILD)/initramfs
# pack the initramfs and make everything be owned by root
$(shell cd $< && find . | cpio -o -H newc -R 0:0 | gzip > $@ )
################################################################################
# live iso generation #
################################################################################
$(BUILD)/iso: $(KERNEL_IMAGE) $(BUILD)/initrd.cpio.gz $(SRC)/syslinux \
$(SRC)/syslinux.cfg
rm -rf $@ && mkdir -p $@
cp $(BUILD)/initrd.cpio.gz $@/initrd.cpio.gz
cp $(KERNEL) $@/kernel
cp $(SRC)/syslinux/bios/core/isolinux.bin $@/isolinux.bin
cp $(SRC)/syslinux/bios/com32/elflink/ldlinux/ldlinux.c32 $@/ldlinux.c32
mkdir -p $@/efi/boot
echo "echo -off" > $@/efi/boot/startup.nsh
echo "Starting pigeon linux" >> $@/efi/boot/startup.nsh
echo "\\\\kernel initrd=\\\\initrd.cpio.gz" >> $@/efi/boot/startup.nsh
cp $(SRC)/syslinux.cfg $@/
touch $@
$(BUILD)/pigeon_linux_live.iso: $(BUILD)/iso
cd $< && genisoimage \
-J \
-r \
-o $@ \
-b isolinux.bin \
-c boot.cat \
-input-charset UTF-8 \
-no-emul-boot \
-boot-load-size 4 \
-boot-info-table \
$<
################################################################################
# #
################################################################################