#
# CENS EmStar Repository Master Makefile
#
# $Id: Makefile,v 1.53 2005/10/27 00:15:23 thanos Exp $
#

################### NOTE!!!! ###########################
## Most of the time you want to edit the files called ##
## 'BUILD' and Make.conf, NOT this Makefile.          ##
########################################################

## Sets user-modifiable variables
## e.g. enable TOS, Kernel, native kernel headers, etc
include Make.conf
ifeq ($(strip $(USE_CONFIGURE)), 1)
include config.make
endif

##  USE_DEVFS.  This flag causes the FUSD kernel module to build with
##  devfs support.  DevFS seems to have race conditions and we do not
##  recommend using it
USE_DEVFS := 0

##
##  If you are using shared libraries, you can turn off the following
##  flag to cause EmStar to use relative paths to discover its shared
##  libs.  This is not generally recommended -- using LD_LIBRARY_PATH
##  is a better idea.
##
REQUIRE_LD_LIBRARY_PATH := 1

########################################################
##
##  Set various TinyOS related environment variables.
##
##  *** WARNING: Changing the settings below is not 
##  recommended because it does not generally work!  
##  Use symlinks instead!!
##
##  Please see <http://cvs.cens.ucla.edu/emstar/install.html>
##  for more detailed information.
##
##  NOTE: If you want to configure EmStar to use other
##  locations for tinyos or tos-contrib, simply move 
##  away the bundled versions and add symlinks to 
##  the locations of the versions you want to use.  
##
##  We recommend this approach because using environment
##  variables is more fragile and harder to track with 
##  revision control.  
##
##  The BUILD rules in EmStar are all coded to be relative
##  to the EmStar tree, and assume that tinyos and tos-contrib 
##  are linked from inside it, or are present there.
##  Lots of things will break horribly if this is not the
##  case.
##
########################################################

##  TOSDIR points to the SourceForge TinyOS repo.
##  This setting points to the version bundled with EmStar
TOSDIR := $(PWD)/tinyos-1.x/tos

##  TOS_CONTRIB points to the CENS tos-contrib repo
##  This setting points to the version checked out with EmStar
TOS_CONTRIB := $(PWD)/tos-contrib/

##  MAKERULES controls aspects of the TOS build system
##  This setting should be compatible with your TOSDIR setting
MAKERULES := $(TOSDIR)/../tools/make/Makerules

#########################################################
#########################################################

# enable/disable DevFS
ifeq ($(strip $(USE_DEVFS)),1)
  DEVFS_KCFLAG := -DUSE_DEVFS
else
  DEVFS_KCFLAG := 
endif

#########################################################
#########################################################

# Set platform-dependent variables.  Including this fragment sets:
#  ARCH -- the target architecture (e.g., arm-linux or i686-linux)
#  NATIVE_ARCH -- the architecture we're compiling under
#  CC, CPP, AR, LD, BINSTRIP -- paths to various utils
include make/make.platform

# If shared libraries are in use, config the suffix to .so
ifeq ($(strip $(USE_SHARED)),1)
  LIB_SUFFIX := .so
  ifeq ($(strip $(REQUIRE_LD_LIBRARY_PATH)),0)
    SHARED_LIB_PREFIX := lib/
  endif
else
  LIB_SUFFIX := .a
endif

# phread a dependency of glib (though we don't generally use it)
LDFLAGS += -lm -lpthread $(GLIB_PATH)

# names of various target directories
OBJDIR := obj.$(ARCH)
NATIVE_OBJDIR := obj.$(NATIVE_ARCH)
BUILDDIR := .build
INCDIR := include

# figure out if a cvs tag has been used here
CVSTAG :=  $(shell make/get-cvs-tag.pl)

# default compiler and linker flags used by everything
# NOTE: some platform-specific flags might be set in make.platform
ifndef NO_PIC
   CFLAGS += -fPIC
   CXXFLAGS += -fPIC
endif

# Set up cflags for stuff that's going in a library and stuff
# that's going in an executable...
ifeq ($(strip $(DEBUG_LIBS)),1)
  CFLAGS_LIBS += -g
endif
ifeq ($(strip $(DEBUG_EXES)),1)
  CFLAGS_EXES += -g
endif

CFLAGS  += -Wall -Werror -I. $(GLIB_CFLAGS) -I$(INCDIR) -DCVSTAG=\"$(CVSTAG)\"
ifdef HAVE_GCC_4
CFLAGS += -Wno-pointer-sign
endif
KCFLAGS += -DCVSTAG=\"$(CVSTAG)\"
CXXFLAGS += -Wall -Werror -I. $(GLIB_CFLAGS) -I$(INCDIR) -DCVSTAG=\"$(CVSTAG)\"

# path to find the automatically generated rules
RULES := $(OBJDIR)/$(BUILDDIR)/easybuild.rules

# export some variables to be picked up by sub-makes
export PKG_CONFIG_PATH
export USE_SHARED

# export some variables needed for TOS integration
export EMSTAR_MAKE=1
export EMSTAR_ROOT = $(PWD)
export TOSDIR
export TOS_CONTRIB
export MAKERULES
PATH += :$(NESC_DIR)/bin:$(AVR_DIR)/bin
export PATH
export EMTOS_MAKE_OBJDIR = $(OBJDIR)
export EMTOS_MAKE_CC = $(CC)
export EMTOS_MAKE_GCCINCLUDE
export GLIB_CFLAGS
# set up the default location for the cross-compiled glib library
ifndef EMTOS_MAKE_LDFLAGS
  EMTOS_MAKE_LDFLAGS = $(PWD)/$(GLIB_PATH)
endif
EMTOS_MAKE_LDFLAGS += -lpthread
export EMTOS_MAKE_LDFLAGS

# setup stuff for 2.6 on kfusd
ifeq ($(strip $(BUILD_KMODULES)),1)
	ifeq ($(strip $(BUILD_KMODULES_26)),1)
		FUSD_26 := $(OBJDIR)/fusd/kfusd.ko
	endif
endif

# the default target
.DEFAULT default: $(RULES) default-targets $(FUSD_26)

# clean target: delete all generated files
clean:
	rm -rf ./$(OBJDIR)/$(BUILDDIR)
	rm -f $(ALL_TARGETS) $(RULES)
	rm -f config.make

# strip target: strips all binaries other than kernel modules
strip: default-targets
	@echo Stripping all binaries...
	@$(BINSTRIP) $(ALL_STRIP_TARGETS)

##
##  If TinyOS not present, download it
##

# Include that causes tinyos to download
include tinyos-1.x/.force

tinyos-1.x/.force: 
	@if [[ -d tinyos-1.x ]]; then \
	echo **** Using TinyOS installation that is already there... ; \
	else \
	echo TinyOS installation not found! ; \
	echo Downloading and installing TinyOS-1.x from EmStar website... ; \
	wget http://cvs.cens.ucla.edu/emstar-platforms/tinyos-1.1.13-linked.tgz -O - | tar -xzf - ; \
	fi
	touch tinyos-1.x/.force

# Include rules to build the "easybuild" system itself
include make/make.easybuild

# Include the rules automatically generated by easybuild
include $(RULES)

# And, finally, a rule to invoke easybuild.  The rules should be
# regenerated if any of three things change: 1) the root BUILD file in
# this directory; 2) any of the BUILD files that are recursively read
# by easybuild (this list is in the BUILD_LIST variable, which is set
# by easybuild and written in .easybuild.rules); or, 3) the easybuild
# program itself.
$(RULES): BUILD $(BUILD_LIST) $(NATIVE_OBJDIR)/make/easybuild
	@mkdir -p $(OBJDIR)/$(BUILDDIR)
	$(NATIVE_OBJDIR)/make/easybuild > $@ || (rm -f $@; exit 1)

##
##  The 'help' target.
##  This target provides info about what vars are set and
##  what platforms are available
##

# For debugging purposes, a rule that shows the environment
# and active variables..
help:
	@echo Help:
	@echo " make ARCH=<platform> [executable path]"
	@echo 
	@echo " EmStar supports the following platforms:"
	@echo 
	@echo "  i686-linux (default) is the 'native' platform"
	@echo "    used to buld to run on your host.  Check Make.conf"
	@echo "    to locally customize the native platform."
	@echo 
	@echo "  arm-linux builds for iPAQ"
	@echo "  ipaq-sa builds for all StrongARM-based iPAQs (Familiar)"
	@echo "  stargate builds for Stargate release 7"
	@echo "  stargate-ucla builds for Stargate UCLA release 5"
	@echo "  pasta builds for PASTA"
	@echo "  ilense-104 builds for the ilense testbed"
	@echo 
	@echo "  mica, mica2, mica2dot, cricket, micaz, telos build Mote targets"
	@echo 
	@echo Environment:
	@echo " NATIVE_KCFLAGS=$(NATIVE_KCFLAGS)"
	@echo " PKG_CONFIG_PATH=$(PKG_CONFIG_PATH)"
	@echo " GLIB_PATH=$(GLIB_PATH)"
	@echo " USE_SHARED='$(USE_SHARED)'"
	@echo " USE_DEVFS='$(USE_DEVFS)'"
	@echo " BUILD_EMTOS='$(BUILD_EMTOS)'"
	@echo " TOSDIR=$(TOSDIR)"
	@echo " TOS_CONTRIB=$(TOS_CONTRIB)"
	@echo " MAKERULES=$(MAKERULES)"
	@echo " NESC_DIR=$(NESC_DIR)"
	@echo " AVR_DIR=$(AVR_DIR)"

KERNELVERSION := $(shell uname -r)
KVERS_MAJOR := $(shell uname -r | cut -d . -f 2)
# Installs kfusd and fusdd. Must be done as root!
install-fusd: default
	@echo "You must be root for this to work!!!"
	@echo "Copying module kfusd... "
	mkdir -p /lib/modules/$(KERNELVERSION)/kernel/misc
ifeq ($(strip $(KVERS_MAJOR)),6)
	cp -f $(OBJDIR)/fusd/kfusd.ko /lib/modules/$(KERNELVERSION)/kernel/misc
	@chmod u+x /lib/modules/$(KERNELVERSION)/kernel/misc/kfusd.ko
else
	cp -f $(OBJDIR)/fusd/kfusd.o /lib/modules/$(KERNELVERSION)/kernel/misc
	@chmod u+x /lib/modules/$(KERNELVERSION)/kernel/misc/kfusd.o
endif
	@echo "Resolving dependencies... "
	@/sbin/depmod -a
	@echo "Installing fusdd in /usr/sbin..."
	@cp -f $(OBJDIR)/fusd/fusdd /usr/sbin
#	@echo "Loading kfusd... running fusdd "
#	@/usr/sbin/fusdd
	@echo "Now as root, just run /usr/sbin/fusdd"

config.make:
	@echo "Building config.make"
	perl htosh.pl