#!/bin/bash

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

#

# Author: Koustubha Bhat

# Date : 3-April-2014

# VU University, Amsterdam.

#

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

set -o errexit

MYPWD=`pwd`

MINIX_ROOT=

MINIX_LLVM_DIR=

TARGET_MODULES=

MINIX_MODS=

STATIC_LIBS=

LDFLAGS_PLACEHOLDER=" "

# Set default values to essential variables.

: ${GENERATE_MAP="no"}

: ${C="servers,drivers"}

function usage()

{

echo "C=<target Minix module> $0 [<static library name>]"

echo

echo "Examples:"

echo "C=pm,vfs ./$0 dummy"

echo "C=drivers ./$0 dummy"

echo

}

function check_current_dir()

{

#Make sure we are running from the root dir of the Minix sources

if [ -d ./minix/drivers ] && [ -d ./minix/servers ] ; then

MINIX_ROOT="${MYPWD}"

elif [ -d ../../minix/drivers ] && [ -d ../../minix/servers ]; then

MINIX_ROOT="${MYPWD}/../.."

else

echo "Please run the script from either of the following locations:"

echo "> Root of the Minix sources."

echo " OR"

echo "> minix/llvm directory of the Minix sources."

exit 1

fi

MINIX_LLVM_DIR="${MINIX_ROOT}/minix/llvm"

}

function find_static_libs()

{

local stat_libs_llvmapps=

local stat_libs_minix=

local install_dir_save=

stat_libs_llvmapps=`build_llvm_libs $*`

install_dir_save=${INSTALL_DIR}

INSTALL_DIR=${MINIX_LLVM_BIN_DIR}

stat_libs_minix=`build_llvm_libs $*`

INSTALL_DIR=${install_dir_save}

echo "${stat_libs_llvmapps} ${stat_libs_minix}"

}

#Make sure we are running from the right directory

check_current_dir

# Arguments check

if [ "$1" == "--help" ] || [ "$1" == "-h" ]; then

usage

exit 1

fi

# set up the bridge to llvm-apps repository and initialize

. ${MINIX_LLVM_DIR}/minix.inc

. ${ROOT}/apps/scripts/include/configure.llvm.inc

echo "LLVM root directory is set to :"

echo " ${ROOT}"

echo ".so and .bcc binaries of LLVM passes set to be picked up from:"

echo " ${INSTALL_DIR}"

echo " and"

echo " ${MINIX_LLVM_BIN_DIR}"

echo

# Picking up the selected modules

if [ "${GENERATE_MAP}" != "" ] && [[ ${GENERATE_MAP} =~ [yY][eE][sS] ]]; then

generate_modules_map

fi

STATIC_LIBS=`find_static_libs $*`

TARGET_MODULES=`echo $C | sed -e "s/,/ /g"`

for m in ${TARGET_MODULES}

do

for p in `get_modules_path $m`

do

MINIX_MODS="${MINIX_MODS} $p"

done

done

# Show info

echo "relink.llvm: Executing with following parameters..."

echo "LIBRARIES : $*"

echo "Target Minix modules : ${MINIX_MODS}"

echo

cd ${MINIX_ROOT}

for m in ${MINIX_MODS}

do

echo "Relinking $m ..."

n=`get_module_name $m`

if [ "" == "$n" ]; then

echo "Error: Couldn't fetch the module name for $m"

continue

fi

clean_module $n $m "relink"

if [ "${STATIC_LIBS}"!="" ]; then

STATIC_LIBS=`echo ${STATIC_LIBS} | sed -e "s/\ /\\\ /g"`

LDFLAGS_PLACEHOLDER="BITCODE_LD_FLAGS_1ST.$n=${STATIC_LIBS}"

fi

env "`echo ${LDFLAGS_PLACEHOLDER}`" MKBITCODE=yes \

${TOOLDIR}/nbmake-${ARCH} -C $m

echo

done

cd ${MYPWD}