# Custom systemd Makefile that builds/installs udev only for LFS
# Bruce Dubbs 2012-07-11

# vim: tabstop=3

SHELL=/bin/bash
SYSTEMD_VERSION=208
VERSION=$(SYSTEMD_VERSION)-3

ifeq ($(V),)
 VB = @
else
 VB =
endif

WARN = -Wall -W -Wextra -Wno-inline -Wvla -Wundef -Wformat=2 \
-Wlogical-op -Wsign-compare -Wformat-security -Wmissing-include-dirs \
-Wformat-nonliteral -Wold-style-definition -Wpointer-arith -Winit-self \
-Wdeclaration-after-statement -Wfloat-equal -Wmissing-prototypes \
-Wstrict-prototypes -Wredundant-decls -Wmissing-declarations \
-Wmissing-noreturn -Wshadow -Wendif-labels -Wcast-align \
-Wstrict-aliasing=2 -Wwrite-strings -Wno-overlength-strings \
-Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-result \
-Werror=overflow -Wp,-D_FORTIFY_SOURCE=2 -Wno-long-long -Wno-vla

OPTIONS = -O2 -pipe -ffast-math -fno-common -fdiagnostics-show-option \
-fno-strict-aliasing -ffunction-sections -fdata-sections -fPIC -std=gnu99

OPTIONS2 := $(OPTIONS) -fvisibility=hidden

LDFLAGS1  = -pthread -lrt -Wl,--as-needed -Wl,--gc-sections -Wl,--no-undefined 
LDFLAGS2 := $(LDFLAGS1) -L /tools/lib -lblkid -lkmod 

DEF = -include cfg.h                    \
      -DSYSCONFDIR=\"/etc\"             \
      -DFIRMWARE_PATH="\"/lib/firmware/updates/\", \"/lib/firmware/\"" \
      -DHWDB_BIN=\"/etc/udev/hwdb.bin\"                                \
      -DROOTPREFIX=                     \
      -DUDEVLIBEXECDIR=\"/lib/udev\"    \
      -D_LARGEFILE_SOURCE               \
      -D_FILE_OFFSET_BITS=64            \
      -DHAVE_FIRMWARE

INCLUDE = -I src/libudev -I src/shared -I src -I src/login -I src/systemd \
          -I src/core    -I udev-lfs-$(VERSION)

LIBUDEV_SRCS = libudev-device-private.c \
               libudev-device.c         \
               libudev-enumerate.c      \
               libudev-hwdb.c           \
               libudev-list.c           \
               libudev-monitor.c        \
               libudev-queue-private.c  \
               libudev-queue.c          \
               libudev-util.c           \
               libudev.c                \
               test-device-nodes.c      \
               device-nodes.c

LIBUDEV_OBJS := $(addprefix build/, $(LIBUDEV_SRCS:.c=.o))

LIBUDEV           = libudev
LIBUDEV_MAJOR     = .1
LIBUDEV_MINOR     = .3
LIBUDEV_PATCH     = .2
LIBUDEV_SONAME    := $(LIBUDEV).so
LIBUDEV_LINK_NAME := $(LIBUDEV_SONAME)$(LIBUDEV_MAJOR)
LIBUDEV_REAL_NAME := $(LIBUDEV_LINK_NAME)$(LIBUDEV_MINOR)$(LIBUDEV_PATCH)

COMMON_LIB = udev-local.a

COMMON_SRCS = log.c         \
              label.c       \
              mkdir.c       \
              cgroup-util.c \
              strv.c        \
              strbuf.c      \
              path-util.c   \
              conf-files.c  \
              hashmap.c     \
              set.c         \
              exit-status.c \
              util.c        \
              mkdir-label.c \
              dev-setup.c   \
              sd-login.c    \
              sd-daemon.c   \
              time-util.c   \
              fileio.c      \
              strxcpyx.c    \
              env-util.c    \
              utf8.c

COMMON_OBJS := $(addprefix build/, $(COMMON_SRCS:.c=.o))

UDEVD_SRCS = udev-ctrl.c             \
             udev-rules.c            \
             udev-watch.c            \
             udev-event.c            \
             udev-node.c             \
             udev-builtin.c          \
             udev-builtin-blkid.c    \
             udev-builtin-firmware.c \
             udev-builtin-keyboard.c \
             udev-builtin-path_id.c  \
             udev-builtin-hwdb.c     \
             udev-builtin-kmod.c     \
             udev-builtin-uaccess.c  \
             udev-builtin-net_id.c   \
             udev-builtin-usb_id.c   \
             udev-builtin-input_id.c \
             udev-builtin-btrfs.c

UDEVD_OBJS := $(addprefix build/, $(UDEVD_SRCS:.c=.o))

UDEV_ADMIN_SRCS = udevadm.c               \
                  udevadm-test.c          \
                  udevadm-monitor.c       \
                  udevadm-settle.c        \
                  udevadm-hwdb.c          \
                  udevadm-info.c          \
                  udevadm-test-builtin.c  \
                  udevadm-trigger.c       \
                  udevadm-control.c       \
                  udev-rules.c            \
                  udev-ctrl.c             \
                  udev-event.c            \
                  udev-node.c             \
                  udev-watch.c            \
                  udev-builtin.c          \
                  udev-builtin-blkid.c    \
                  udev-builtin-keyboard.c \
                  udev-builtin-firmware.c \
                  udev-builtin-path_id.c  \
                  udev-builtin-hwdb.c     \
                  udev-builtin-kmod.c     \
                  udev-builtin-uaccess.c  \
                  udev-builtin-net_id.c   \
                  udev-builtin-usb_id.c   \
                  udev-builtin-input_id.c \
                  udev-builtin-btrfs.c

UDEV_ADMIN_OBJS := $(addprefix build/, $(UDEV_ADMIN_SRCS:.c=.o))

LFS_RULES = 55-lfs.rules

VPATH = src/login          src/udev          src/udev/accelerometer \
        src/udev/scsi_id   src/udev/cdrom_id src/udev/v4l_id        \
        src/udev/mtd_probe src/udev/collect  src/udev/ata_id        \
        src/libudev        src/test          src/libsystemd-daemon 

SED_PROCESS = \
  sed  -e 's|@VERSION@|$(SYSTEMD_VERSION)|g'       \
       -e 's|@prefix@|/usr|g'              \
       -e 's|@udevlibexecdir@|/lib/udev|g' \
       -e 's|@libdir@|/usr/lib|g'          \
       -e 's|@includedir@|/usr/include|g'  \
        < $< > $@

SECURE = $(shell if objdump -T /lib/libc.so.6 | grep -q " secure_getenv"; \
then echo yes; fi)

ifeq "$(SECURE)" "yes"
   SECURE_GETENV = SECURE_GETENV
else
   SECURE_GETENV = __SECURE_GETENV
endif

udev: common                     \
      build/$(COMMON_LIB)        \
      build/$(LIBUDEV_REAL_NAME) \
      build/udevd                \
      build/udevadm              \
      build/accelerometer        \
      build/ata_id               \
      build/cdrom_id             \
      build/scsi_id              \
      build/v4l_id               \
      build/mtd_probe            \
      build/collect              \
      build/udev.pc              \
      build/libudev.pc

cfg.h: udev-lfs-$(VERSION)/cfg.h
	sed  -e 's/LFS-VERSION/$(SYSTEMD_VERSION)/' \
        -e 's/SECURE_GETENV/$(SECURE_GETENV)/' \
        udev-lfs-$(VERSION)/cfg.h > ./cfg.h
	@mkdir -p build

common: cfg.h 
	@touch common

build/%o: %c common
	@echo CC $<
	$(VB)gcc -c $(WARN) $(OPTIONS2) $(INCLUDE) $(DEF) -o $@ $<

# Sources from src/libudev use -fvisibility=hidden
build/%o: src/libudev/%c common
	@echo CC $<
	$(VB)gcc -c $(WARN) $(OPTIONS) $(INCLUDE) $(DEF) -o $@ $<

# Sources from src/shared use -fvisibility=hidden
build/%o: src/shared/%c common
	@echo CC $<
	$(VB)gcc -c $(WARN) $(OPTIONS) $(INCLUDE) $(DEF) -o $@ $<

# Build the dynamic library
build/$(LIBUDEV_REAL_NAME): $(LIBUDEV_OBJS) build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc -shared -fPIC -DPIC             \
      $(LIBUDEV_OBJS)                       \
      build/$(COMMON_LIB)                   \
      -Wl,--no-whole-archive -ldl -lrt -O2  \
      -Wl,--as-needed                       \
      -Wl,--gc-sections                     \
      -Wl,--no-undefined                    \
      -Wl,-soname,$(LIBUDEV_LINK_NAME)      \
      -o build/$(LIBUDEV_REAL_NAME)

	ln -sfn $(LIBUDEV_REAL_NAME) build/$(LIBUDEV_LINK_NAME)
	ln -sfn $(LIBUDEV_REAL_NAME) build/$(LIBUDEV_SONAME)

      #-Wl,--whole-archive                   \
      #-Wl,--version-script=./src/libudev/libudev.sym \

# Build the static library for internal use
build/$(COMMON_LIB): $(COMMON_OBJS) $(LIBUDEV_OBJS) $(UDEVD_OBJS)
	@echo AR $@
	$(VB)ar rcs build/$(COMMON_LIB) $(COMMON_OBJS) $(LIBUDEV_OBJS)

build/udevd: build/$(COMMON_LIB) build/udevd.o
	@echo LINK $@
	$(VB)gcc build/udevd.o $(UDEVD_OBJS) -o $@ $(LDFLAGS2) \
      build/udev-local.a build/$(COMMON_LIB)
	$(VB)strip --strip-unneeded $@

build/udevadm: $(UDEV_ADMIN_OBJS) build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc $(UDEV_ADMIN_OBJS) -o $@ $(LDFLAGS2) build/$(COMMON_LIB)
	$(VB)strip --strip-unneeded $@

build/accelerometer: build/accelerometer.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/accelerometer.o -o $@ \
      build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1) -lm
	$(VB)strip --strip-unneeded $@

build/scsi_id: build/scsi_id.o build/scsi_serial.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/scsi_id.o build/scsi_serial.o -o $@ \
      build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/ata_id: build/ata_id.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/ata_id.o -o $@ build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/cdrom_id: build/cdrom_id.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/cdrom_id.o -o $@ build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/v4l_id: build/v4l_id.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/v4l_id.o -o $@ build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/mtd_probe: build/mtd_probe.o build/probe_smartmedia.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/mtd_probe.o build/probe_smartmedia.o -o $@ \
      build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/collect: build/collect.o build/$(COMMON_LIB)
	@echo LINK $@
	$(VB)gcc build/collect.o -o $@ build/udev-local.a build/$(COMMON_LIB) $(LDFLAGS1)
	$(VB)strip --strip-unneeded $@

build/%pc: %pc.in common
	@echo GEN $@
	@$(SED_PROCESS)

install: udev
	@mkdir -pv $(DESTDIR)/lib/udev/devices/pts   $(DESTDIR)/lib/udev/rules.d \
              $(DESTDIR){,/usr}/lib/firmware    $(DESTDIR)/sbin             \
              $(DESTDIR)/usr/lib/pkgconfig      $(DESTDIR)/etc/udev/rules.d \
              $(DESTDIR)/usr/share/man/man{7,8} $(DESTDIR)/usr/include      \
              $(DESTDIR)/usr/share/doc/udev-$(SYSTEMD_VERSION)/lfs          \
              $(DESTDIR)/usr/share/gtk-doc/html/libudev

   # Copy executables
	@cp -v build/udevadm                  $(DESTDIR)/sbin
	@cp -v build/{udevd,accelerometer,ata_id,cdrom_id,collect,mtd_probe,scsi_id,v4l_id} \
                                         $(DESTDIR)/lib/udev
	@cp -v udev-lfs-$(VERSION)/write*     $(DESTDIR)/lib/udev
	@cp -v udev-lfs-$(VERSION)/*functions $(DESTDIR)/lib/udev

   # Copy and set up library and associated files
	@cp -v build/{lib,}udev.pc            $(DESTDIR)/usr/lib/pkgconfig
	@cp -v build/$(LIBUDEV_REAL_NAME)     $(DESTDIR)/lib

	ln -svfn ../../lib/$(LIBUDEV_REAL_NAME) $(DESTDIR)/usr/lib/$(LIBUDEV_SONAME)
	ln -svfn $(LIBUDEV_REAL_NAME)           $(DESTDIR)/lib/$(LIBUDEV_LINK_NAME)

   # Copy the libudev header
	@cp -v src/libudev/libudev.h          $(DESTDIR)/usr/include

   # Create null device and copy rules
	@cp -v rules/*                        $(DESTDIR)/lib/udev/rules.d
	@rm -v                                $(DESTDIR)/lib/udev/rules.d/99*
	@cp -v udev-lfs-$(VERSION)/*.rules    $(DESTDIR)/etc/udev/rules.d

   # Set up hardware DB
	@mkdir -pv $(DESTDIR)/lib/udev/hwdb.d
	@cp hwdb/* $(DESTDIR)/lib/udev/hwdb.d
   #	@build/udevadm hwdb --update

   # Copy documentation
	@cp -v udev-lfs-$(VERSION)/udev.7     $(DESTDIR)/usr/share/man/man7
	@cp -v udev-lfs-$(VERSION)/udevadm.8  $(DESTDIR)/usr/share/man/man8
	@cp -v udev-lfs-$(VERSION)/udevd.8    $(DESTDIR)/usr/share/man/man8
	@cp -v udev-lfs-$(VERSION)/README     $(DESTDIR)/usr/share/doc/udev-$(SYSTEMD_VERSION)/lfs
	@cp -v udev-lfs-$(VERSION)/*.txt      $(DESTDIR)/usr/share/doc/udev-$(SYSTEMD_VERSION)/lfs
	@cp -v docs/libudev/*.{txt,types}     $(DESTDIR)/usr/share/doc/udev-$(SYSTEMD_VERSION)
	@cp -v docs/libudev/html/*            $(DESTDIR)/usr/share/gtk-doc/html/libudev

   # Copy misc
	@cp -v udev-lfs-$(VERSION)/init-net-rules.sh  $(DESTDIR)/lib/udev

include udev-lfs-$(VERSION)/makefile-incl.gudev
include udev-lfs-$(VERSION)/makefile-incl.gir
include udev-lfs-$(VERSION)/makefile-incl.keymap

all        : udev keymap gudev gir-data
install-all: install install-keymap install-gudev install-gir-data

clean:
	rm -rf build
	rm -f  cfg.h
	rm -f  common
	rm -f  src/gudev/gudevmarshal.h
	rm -f  src/gudev/gudevmarshal.c
	rm -f  src/gudev/gudevenumtypes.h
	rm -f  src/gudev/gudevenumtypes.c
	rm -f  src/udev/keymap/keys.txt
	rm -f  src/udev/keymap/keys-from-name.gperf
	rm -f  src/udev/keymap/keys-from-name.h
	rm -f  src/udev/keymap/keys-to-name.h

.PHONY: clean