Instructions for building a Jessie VM to cross-compile openFrameworks 0.9 applications for the Raspberry Pi 1 (arm7)

Cross compiler for RPi, Jessie, openFrameworks 0.9

#ON THE RPI (if you haven't downloaded openFrameworks)

cd
curl -O http://192.237.185.151/versions/nightly/of_v20151008_linuxarmv6l_nightly.tar.gz
mkdir openFrameworks
tar vxfz of_v20151008_linuxarmv6l_nightly.tar.gz -C openFrameworks --strip-components 1
cd /home/pi/openFrameworks/scripts/linux/debian
sudo ./install_dependencies.sh

#INSTALL SMB WITH / ACCESS
# https://gist.github.com/jvcleave/f41132324ca75c2268f9

#ON THE MAC:

#INSTALL VIRTUALBOX

#INSTALL DEBIAN 64BIT JESSIE
#http://gemmei.acc.umu.se/mirror/cdimage/release/8.2.0-live/amd64/iso-hybrid/debian-live-8.2.0-amd64-standard.iso

#Use Bridge Mode (allows access to local network without NAT)
#No Desktop Needed
#Give it at least 10GB storage

#ON THE DEBIAN VM:

#NOTE:BELOW INSTRUCTIONS USE pi AS DEBIAN USER

#ADD pi USER TO ROOT GROUP 
#(via https://www.privateinternetaccess.com/forum/discussion/18063/debian-8-1-0-jessie-sudo-fix-not-installed-by-default)

su
apt-get install sudo
adduser pi sudo
nano /etc/sudoers

# under "User privilege specification" add pi line below to look like

# User privilege specification
root  ALL=(ALL:ALL) ALL
pi    ALL=(ALL:ALL) ALL

#INSTALL NEEDED PACKAGES
sudo apt-get install pkg-config make build-essential cifs-utils avahi-daemon avahi-utils libavahi-compat-libdnssd-dev 


# MOUNT PI ON DEBIAN

sudo mkdir /media/Data

sudo nano /etc/fstab
#ADD LINE (raspberrypi.local is RPi Network address - can be IP)

//raspberrypi.local/Data /media/Data cifs credentials=/home/pi/.smbcredentials,iocharset=utf8 0 0

#save and exit nano

#CREATE FILE TO STORE SMB USER/PASS
nano /home/pi/.smbcredentials

#add RPi samba user/pass (don't add this line)
username=pi
password=raspberry

#save and exit nano

#MOUNT PI
sudo mount -a

#TEST
ls -al /media/Data

#SET ENVIRONMENT VARIABLES
cd
nano .profile

#add lines
export GST_VERSION=1.0
export RPI_ROOT=/home/pi/RPI_ROOT
export RPI_TOOLS=/opt/cross/bin
export TOOLCHAIN_ROOT=/opt/cross/bin
export PLATFORM_OS=Linux
export PLATFORM_ARCH=armv7l
export PLATFORM_VARIANT=rpi2
export PKG_CONFIG_PATH=$RPI_ROOT/usr/lib/arm-linux-gnueabihf/pkgconfig:$RPI_ROOT/usr/share/pkgconfig:$RPI_ROOT/usr/lib/pkgconfig

#save and exit nano

#Apply variables
source .profile

#COPY NECESSARY RPI CONTENTS FOR COMPILER

cd
mkdir RPI_ROOT

cd RPI_ROOT
ln -s /media/Data/etc/ etc
ln -s /media/Data/lib/ lib
ln -s /media/Data/opt/ opt

cp -Rv /media/Data/usr/ usr

#FIX HARDCORDED LINKS TO /lib

cd usr/lib/arm-linux-gnueabihf
rm libanl.so libBrokenLocale.so libcidn.so libcrypt.so libdbus-1.so libdl.so libexpat.so libglib-2.0.so liblzma.so libm.so libnsl.so libnss_compat.so libnss_dns.so libnss_files.so libnss_hesiod.so libnss_nisplus.so libnss_nis.so libpcre.so libpng12.so.0 libresolv.so libthread_db.so libusb-0.1.so.4 libusb-1.0.so libutil.so libz.so

ln -s ../../../lib/arm-linux-gnueabihf/libanl.so.1  libanl.so        
ln -s ../../../lib/arm-linux-gnueabihf/libBrokenLocale.so.1  libBrokenLocale.so      
ln -s ../../../lib/arm-linux-gnueabihf/libcidn.so.1  libcidn.so        
ln -s ../../../lib/arm-linux-gnueabihf/libcrypt.so.1  libcrypt.so       
ln -s ../../../lib/arm-linux-gnueabihf/libdbus-1.so.3.8.13  libdbus-1.so       
ln -s ../../../lib/arm-linux-gnueabihf/libdl.so.2  libdl.so        
ln -s ../../../lib/arm-linux-gnueabihf/libexpat.so.1.6.0  libexpat.so       
ln -s ../../../lib/arm-linux-gnueabihf/libglib-2.0.so.0  libglib-2.0.so       
ln -s ../../../lib/arm-linux-gnueabihf/liblzma.so.5.0.0  liblzma.so        
ln -s ../../../lib/arm-linux-gnueabihf/libm.so.6  libm.so        
ln -s ../../../lib/arm-linux-gnueabihf/libnsl.so.1  libnsl.so        
ln -s ../../../lib/arm-linux-gnueabihf/libnss_compat.so.2  libnss_compat.so      
ln -s ../../../lib/arm-linux-gnueabihf/libnss_dns.so.2  libnss_dns.so       
ln -s ../../../lib/arm-linux-gnueabihf/libnss_files.so.2  libnss_files.so      
ln -s ../../../lib/arm-linux-gnueabihf/libnss_hesiod.so.2  libnss_hesiod.so      
ln -s ../../../lib/arm-linux-gnueabihf/libnss_nisplus.so.2  libnss_nisplus.so      
ln -s ../../../lib/arm-linux-gnueabihf/libnss_nis.so.2  libnss_nis.so       
ln -s ../../../lib/arm-linux-gnueabihf/libpcre.so.3  libpcre.so        
ln -s ../../../lib/arm-linux-gnueabihf/libpng12.so.0  libpng12.so.0       
ln -s ../../../lib/arm-linux-gnueabihf/libresolv.so.2  libresolv.so       
ln -s ../../../lib/arm-linux-gnueabihf/libthread_db.so.1  libthread_db.so      
ln -s ../../../lib/arm-linux-gnueabihf/libusb-0.1.so.4  libusb-0.1.so.4      
ln -s ../../../lib/arm-linux-gnueabihf/libusb-1.0.so.0.1.0  libusb-1.0.so       
ln -s ../../../lib/arm-linux-gnueabihf/libutil.so.1  libutil.so        
ln -s ../../../lib/arm-linux-gnueabihf/libz.so.1.2.8  libz.so  

cd

#CREATE CROSS COMPILER

mkdir CROSS_BUILD_TOOLS
cd CROSS_BUILD_TOOLS
wget https://gist.githubusercontent.com/jvcleave/ed342fb2d41564bcdab6/raw/495e723cc8e5c64051f3f16697515c5d0eb95f8c/build_cross_gcc.sh
sudo chmod +x build_cross_gcc.sh
sudo ./build_cross_gcc.sh

#PATCH NEEDED UNTIL MERGE OF https://github.com/openframeworks/openFrameworks/pull/4420
cd /media/Data/openFrameworks/libs/openFrameworksCompiled/project/linuxarmv6l
cp config.linuxarmv6l.default.mk config.linuxarmv6l.default.mk.pre-patch
rm config.linuxarmv6l.default.mk
wget https://raw.githubusercontent.com/jvcleave/openFrameworks/f5cc623347a9dc764aabb8d7e0fb81b008d4837a/libs/openFrameworksCompiled/project/linuxarmv6l/config.linuxarmv6l.default.mk

#TRY AND COMPILE
make -C /media/Data/home/pi/openFrameworks/examples/empty/emptyExample/

build_cross_gcc.sh

#! /bin/bash
set -e
trap 'previous_command=$this_command; this_command=$BASH_COMMAND' DEBUG
trap 'echo FAILED COMMAND: $previous_command' EXIT

#-------------------------------------------------------------------------------------------
# This script will download packages for, configure, build and install a GCC cross-compiler.
# Customize the variables (INSTALL_PATH, TARGET, etc.) to your liking before running.
# If you get an error and need to resume the script from some point in the middle,
# just delete/comment the preceding lines before running it again.
#
# See: http://preshing.com/20141119/how-to-build-a-gcc-cross-compiler
#-------------------------------------------------------------------------------------------

export SYSROOT=/home/pi/RPI_ROOT


INSTALL_PATH=/opt/cross
TARGET=arm-linux-gnueabihf
LINUX_ARCH=arm
CONFIGURATION_OPTIONS="--disable-werror"
SYSROOT_OPTIONS="--with-sysroot=$SYSROOT --with-build-sysroot=$SYSROOT"

PARALLEL_MAKE=-j4
BINUTILS_VERSION=binutils-2.25.1
GCC_VERSION=gcc-4.9.2
LINUX_KERNEL_VERSION=linux-4.1.7
GLIBC_VERSION=glibc-2.22
MPFR_VERSION=mpfr-3.1.2
GMP_VERSION=gmp-6.0.0a
MPC_VERSION=mpc-1.0.2
ISL_VERSION=isl-0.12.2
CLOOG_VERSION=cloog-0.18.1
export PATH=$INSTALL_PATH/bin:$PATH


# Download packages
export http_proxy=$HTTP_PROXY https_proxy=$HTTP_PROXY ftp_proxy=$HTTP_PROXY
wget -nc http://ftpmirror.gnu.org/binutils/$BINUTILS_VERSION.tar.gz
wget -nc http://ftpmirror.gnu.org/gcc/$GCC_VERSION/$GCC_VERSION.tar.gz
wget -nc http://ftpmirror.gnu.org/linux/kernel/v4.x/$LINUX_KERNEL_VERSION.tar.xz
wget -nc http://ftpmirror.gnu.org/glibc/$GLIBC_VERSION.tar.xz
wget -nc http://ftpmirror.gnu.org/mpfr/$MPFR_VERSION.tar.xz
wget -nc http://ftpmirror.gnu.org/gmp/$GMP_VERSION.tar.xz
wget -nc http://ftpmirror.gnu.org/mpc/$MPC_VERSION.tar.gz
wget -nc ftp://gcc.gnu.org/pub/gcc/infrastructure/$ISL_VERSION.tar.bz2
wget -nc ftp://gcc.gnu.org/pub/gcc/infrastructure/$CLOOG_VERSION.tar.gz


# Extract everything
for f in *.tar*; do tar xfkv $f; done

# Make symbolic links
cd $GCC_VERSION
ln -sf `ls -1d ../mpfr-*/` mpfr
ln -sf `ls -1d ../gmp-*/` gmp
ln -sf `ls -1d ../mpc-*/` mpc
ln -sf `ls -1d ../isl-*/` isl
ln -sf `ls -1d ../cloog-*/` cloog
cd ..


# Step 1. Binutils
mkdir -p build-binutils
cd build-binutils
../$BINUTILS_VERSION/configure --prefix=$INSTALL_PATH --target=$TARGET $CONFIGURATION_OPTIONS $SYSROOT_OPTIONS  
make $PARALLEL_MAKE
make install
cd ..

# Step 2. Linux Kernel Headers
#if [ $USE_NEWLIB -eq 0 ]; then
    cd $LINUX_KERNEL_VERSION
    make ARCH=$LINUX_ARCH INSTALL_HDR_PATH=$INSTALL_PATH/$TARGET headers_install
    cd ..
#fi

# Step 3. C/C++ Compilers
mkdir -p build-gcc
cd build-gcc
if [ $USE_NEWLIB -ne 0 ]; then
    NEWLIB_OPTION=--with-newlib
fi
../$GCC_VERSION/configure --prefix=$INSTALL_PATH --target=$TARGET --enable-languages=c,c++ --with-float=hard $CONFIGURATION_OPTIONS $SYSROOT_OPTIONS  
make $PARALLEL_MAKE all-gcc
make install-gcc
cd ..

if [ $USE_NEWLIB -ne 0 ]; then
    # Steps 4-6: Newlib
    mkdir -p build-newlib
    cd build-newlib
    ../newlib-master/configure --prefix=$INSTALL_PATH --target=$TARGET $CONFIGURATION_OPTIONS
    make $PARALLEL_MAKE
    make install
    cd ..
else
    # Step 4. Standard C Library Headers and Startup Files
    mkdir -p build-glibc
    cd build-glibc
    ../$GLIBC_VERSION/configure --prefix=$INSTALL_PATH/$TARGET --build=$MACHTYPE --host=$TARGET --target=$TARGET --with-headers=$INSTALL_PATH/$TARGET/include $CONFIGURATION_OPTIONS libc_cv_forced_unwind=yes
    make install-bootstrap-headers=yes install-headers
    make $PARALLEL_MAKE csu/subdir_lib
    install csu/crt1.o csu/crti.o csu/crtn.o $INSTALL_PATH/$TARGET/lib
    $TARGET-gcc -nostdlib -nostartfiles -shared -x c /dev/null -o $INSTALL_PATH/$TARGET/lib/libc.so
    touch $INSTALL_PATH/$TARGET/include/gnu/stubs.h
    cd ..

    # Step 5. Compiler Support Library
    cd build-gcc
    make $PARALLEL_MAKE all-target-libgcc
    make install-target-libgcc
    cd ..

    # Step 6. Standard C Library & the rest of Glibc
    cd build-glibc
    make $PARALLEL_MAKE
    make install
    cd ..
fi

# Step 7. Standard C++ Library & the rest of GCC
cd build-gcc
make $PARALLEL_MAKE all
make install
cd ..

trap - EXIT
echo 'Success!'

config.linuxarmv7l.rpi2.mk

###############################################################################
# CONFIGURE CORE PLATFORM MAKEFILE
#   This file is where we make platform and architecture specific 
#   configurations. This file can be specified for a generic architecture or can
#   be defined as variants. For instance, normally this file will be located in 
#   a platform specific subpath such as 
#
#        $(OF_ROOT)/libs/openFrameworksComplied/linux64
#
#   This file will then be a generic platform file like:
#
#        configure.linux64.default.make
#
#   Or it can specify a specific platform variant like:
#
#        configure.linuxarmv6l.raspberrypi.make
#
################################################################################

################################################################################
# include common rules
#
#   all linux systems have several rules in common so most of them are included
#   from the following file
#
################################################################################

include $(OF_SHARED_MAKEFILES_PATH)/config.linux.common.mk

################################################################################
# PLATFORM DEFINES
#   Create a list of DEFINES for this platform.  The list will be converted into 
#   CFLAGS with the "-D" flag later in the makefile.  An example of fully 
#   qualified flag might look something like this: -DTARGET_OPENGLES2
#
#   DEFINES are used throughout the openFrameworks code, especially when making
#   #ifdef decisions for cross-platform compatibility.  For instance, when 
#   choosing a video playback framework, the openFrameworks base classes look at
#   the DEFINES to determine what source files to include or what default player 
#   to use.
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

# defines used inside openFrameworks libs.
PLATFORM_DEFINES += TARGET_RASPBERRY_PI

# TODO many of these are not relevant to openFrameworks (were just pasted from hello_pi examples)
# from raspberry pi examples
PLATFORM_DEFINES += STANDALONE
PLATFORM_DEFINES += PIC
PLATFORM_DEFINES += _REENTRANT
PLATFORM_DEFINES += _LARGEFILE64_SOURCE
PLATFORM_DEFINES += _FILE_OFFSET_BITS=64
PLATFORM_DEFINES += _FORTIFY_SOURCE
PLATFORM_DEFINES += __STDC_CONSTANT_MACROS
PLATFORM_DEFINES += __STDC_LIMIT_MACROS
PLATFORM_DEFINES += TARGET_POSIX
PLATFORM_DEFINES += HAVE_LIBOPENMAX=2
PLATFORM_DEFINES += OMX
PLATFORM_DEFINES += OMX_SKIP64BIT
PLATFORM_DEFINES += USE_EXTERNAL_OMX
PLATFORM_DEFINES += HAVE_LIBBCM_HOST
PLATFORM_DEFINES += USE_EXTERNAL_LIBBCM_HOST
PLATFORM_DEFINES += USE_VCHIQ_ARM

# Fix for firmware update @
# https://github.com/Hexxeh/rpi-firmware/commit/ca3703d2d282ac96a97650e2e496276727e1b65b
ifeq ($(strip $(shell cat $(RPI_ROOT)/opt/vc/include/interface/vmcs_host/vc_dispmanx.h | grep VC_IMAGE_TRANSFORM_T)),) 
PLATFORM_DEFINES += USE_DISPMANX_TRANSFORM_T
endif

################################################################################
# PLATFORM REQUIRED ADDONS
#   This is a list of addons required for this platform.  This list is used to 
#   EXCLUDE addon source files when compiling projects, while INCLUDING their 
#   header files. During core library compilation, this is used to include 
#   required addon header files as needed within the core. 
#
#   For instance, if you are compiling for Android, you would add ofxAndroid 
#   here. If you are compiling for Raspberry Pi, you would add ofxRaspberryPi 
#   here.
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

#PLATFORM_REQUIRED_ADDONS = ofxRaspberryPi

################################################################################
# PLATFORM CFLAGS
#   This is a list of fully qualified CFLAGS required when compiling for this 
#   platform. These flags will always be added when compiling a project or the 
#   core library.  These flags are presented to the compiler AFTER the 
#   PLATFORM_OPTIMIZATION_CFLAGS below. 
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

PLATFORM_CFLAGS += -march=armv7-a
PLATFORM_CFLAGS += -mfpu=vfp
PLATFORM_CFLAGS += -mfloat-abi=hard
PLATFORM_CFLAGS += -fPIC
PLATFORM_CFLAGS += -ftree-vectorize
PLATFORM_CFLAGS += -Wno-psabi
PLATFORM_CFLAGS += -pipe


################################################################################
# PLATFORM LIBRARIES
#   These are library names/paths that are platform specific and are specified 
#   using names or paths.  The library flag (i.e. -l) is prefixed automatically.
#
#   PLATFORM_LIBRARIES are libraries that can be found in the library search 
#       paths.
#   PLATFORM_STATIC_LIBRARIES is a list of required static libraries.
#   PLATFORM_SHARED_LIBRARIES is a list of required shared libraries.
#   PLATFORM_PKG_CONFIG_LIBRARIES is a list of required libraries that are 
#       under system control and are easily accesible via the package 
#       configuration utility (i.e. pkg-config)
#
#   See the helpfile for the -l flag here for more information:
#       http://gcc.gnu.org/onlinedocs/gcc/Link-Options.html
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

# raspberry pi specific
PLATFORM_LIBRARIES += GLESv2
PLATFORM_LIBRARIES += GLESv1_CM
PLATFORM_LIBRARIES += EGL
PLATFORM_LIBRARIES += openmaxil
PLATFORM_LIBRARIES += bcm_host
PLATFORM_LIBRARIES += vcos
PLATFORM_LIBRARIES += vchiq_arm
PLATFORM_LIBRARIES += pcre
PLATFORM_LIBRARIES += rt 
PLATFORM_LIBRARIES += X11 
PLATFORM_LIBRARIES += dl


PLATFORM_LDFLAGS += -pthread


################################################################################
# PLATFORM HEADER SEARCH PATHS
#   These are header search paths that are platform specific and are specified 
#   using fully-qualified paths.  The include flag (i.e. -I) is prefixed 
#   automatically. These are usually not required, but may be required by some 
#   experimental platforms such as the raspberry pi or other other embedded 
#   architectures.
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

# Broadcom hardware interface library
PLATFORM_HEADER_SEARCH_PATHS += $(RPI_ROOT)/opt/vc/include
PLATFORM_HEADER_SEARCH_PATHS += $(RPI_ROOT)/opt/vc/include/IL
PLATFORM_HEADER_SEARCH_PATHS += $(RPI_ROOT)/opt/vc/include/interface/vcos/pthreads
PLATFORM_HEADER_SEARCH_PATHS += $(RPI_ROOT)/opt/vc/include/interface/vmcs_host/linux


##########################################################################################
# PLATFORM LIBRARY SEARCH PATH
#   These are special libraries assocated with the above header search paths
#   Do not use full flag syntax, that will be added automatically later
#   These paths are ABSOLUTE.
#   Simply use space delimited paths.
#   Note: Leave a leading space when adding list items with the += operator
##########################################################################################

PLATFORM_LIBRARY_SEARCH_PATHS += $(RPI_ROOT)/opt/vc/lib


################################################################################
# PLATFORM CORE EXCLUSIONS
#   During compilation, these makefiles will generate lists of sources, headers 
#   and third party libraries to be compiled and linked into a program or core 
#   library. The PLATFORM_CORE_EXCLUSIONS is a list of fully qualified file 
#   paths that will be used to exclude matching paths and files during list 
#   generation.
#
#   Each item in the PLATFORM_CORE_EXCLUSIONS list will be treated as a complete
#   string unless teh user adds a wildcard (%) operator to match subdirectories.
#   GNU make only allows one wildcard for matching.  The second wildcard (%) is
#   treated literally.
#
#   Note: Leave a leading space when adding list items with the += operator
################################################################################

#PLATFORM_PKG_CONFIG_LIBRARIES += gstreamer-egl-$(GST_VERSION)
PLATFORM_CORE_EXCLUSIONS += $(OF_LIBS_PATH)/openFrameworks/app/ofAppGLFWWindow.cpp

ifeq ($(CROSS_COMPILING),1)	
	
	ifdef TOOLCHAIN_ROOT
		#You have specified TOOLCHAIN_ROOT with an environment variable
	else
		TOOLCHAIN_ROOT = /opt/cross/bin
	endif
	
	ifdef GCC_PREFIX
		#You have specified GCC_PREFIX with an environment variable
	else
		GCC_PREFIX = arm-linux-gnueabihf
	endif
	
    PLATFORM_CXX = $(TOOLCHAIN_ROOT)/$(GCC_PREFIX)-g++
	PLATFORM_CC = $(TOOLCHAIN_ROOT)/$(GCC_PREFIX)-gcc
	PLATFORM_AR = $(TOOLCHAIN_ROOT)/$(GCC_PREFIX)-ar
	PLATFORM_LD = $(TOOLCHAIN_ROOT)/$(GCC_PREFIX)-ld
	
	SYSROOT=$(RPI_ROOT)
	
	PLATFORM_CFLAGS += --sysroot=$(SYSROOT)
	
	PLATFORM_HEADER_SEARCH_PATHS += $(SYSROOT)/usr/include/c++/4.9

	PLATFORM_LIBRARY_SEARCH_PATHS += $(SYSROOT)/usr/lib/$(GCC_PREFIX)
	
	PLATFORM_LDFLAGS += --sysroot=$(SYSROOT) 
	PLATFORM_LDFLAGS += -Wl,-rpath=$(SYSROOT)/usr/lib/$(GCC_PREFIX) 
	PLATFORM_LDFLAGS += -Wl,-rpath=$(SYSROOT)/lib/$(GCC_PREFIX) 
	PKG_CONFIG_LIBDIR=$(SYSROOT)/usr/lib/pkgconfig:$(SYSROOT)/usr/lib/arm-linux-gnueabihf/pkgconfig:$(SYSROOT)/usr/share/pkgconfig
	
endif

putting this here as well as it is needed (was missing in my original)

cd ~/RPI_ROOT/usr/lib/arm-linux-gnueabihf
rm libudev.so
ln -s ../../../lib/arm-linux-gnueabihf/libudev.so.1.5.0 libudev.so

instructions point to my build_cross_gcc.sh
use the one here instead