1 #!/bin/bash 2 3 ############################################################################ 4 # 5 # Script for generating a PowerPC cross compiler using crosstool. 6 # 7 # Copyright (C) 2009 Bart Van Assche <bvanassche (at] acm.org>. 8 # 9 # This program is free software; you can redistribute it and/or 10 # modify it under the terms of the GNU General Public License 11 # as published by the Free Software Foundation, version 2 12 # of the License. 13 # 14 # This program is distributed in the hope that it will be useful, 15 # but WITHOUT ANY WARRANTY; without even the implied warranty of 16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 # GNU General Public License for more details. 18 # 19 ############################################################################ 20 21 ######################### 22 # Function definitions # 23 ######################### 24 25 # Print an error message and exit. 26 abort() { 27 echo "build failed: $@" 28 exit 1 29 } 30 31 # Print command-line help. 32 usage() { 33 cat <<EOF 34 Usage: $0 [-h] [-t crosstools-directory] [gcc-version glibc-version] 35 EOF 36 } 37 38 # Extract and run crosstool for the specified gcc and glibc versions. 39 generate_cross_compiler() { 40 export GCC_DIR=gcc-$1 41 export GLIBC_DIR=glibc-$2 42 43 export GLIBCTHREADS_FILENAME=glibc-linuxthreads-$2 44 # glibc-crypt is only needed for glibc 2.1.x and earlier glibc versions. 45 unset GLIBCCRYPT_FILENAME 46 if [ "${2#2.1.}" != "${2}" ]; then 47 GLIBCCRYPT_FILENAME=glibc-crypt-2.1 48 fi 49 export GLIBCCRYPT_FILENAME 50 unset GCC_CORE_DIR 51 if [ "${1#4.}" != "${1}" -a "${2#2.[12].}" != "$2" ]; then 52 # Use gcc 2.95.3 for compiling glibc 2.1.* and glibc 2.2.*. 53 GCC_CORE_DIR=gcc-2.95.3 54 else 55 GCC_CORE_DIR=gcc-3.3.6 56 fi 57 export GCC_CORE_DIR 58 59 export GCC_EXTRA_CONFIG="--disable-linux-futex --disable-mudflap --disable-nls" 60 #GLIBC_ADDON_OPTIONS= 61 62 # gcc 4.x aborts with a syntax error on glibc's inline functions if you do 63 # not specify -fgnu89-inline. 64 #if [ "${1#4.}" != "${1}" ]; then 65 # export TARGET_FLAGS="$TARGET_FLAGS -fgnu89-inline" 66 #fi 67 68 if ! /bin/rm -rf $RESULT_TOP/${GCC_DIR}-${GLIBC_DIR}; then 69 abort "Need write permission in $RESULT_TOP/${GCC_DIR}-${GLIBC_DIR}" 70 fi 71 if ! /bin/mkdir -p $RESULT_TOP/$GCC_DIR-$GLIBC_DIR/$TARGET; then 72 abort "Need write permission in $RESULT_TOP/${GCC_DIR}-${GLIBC_DIR}/$TARGET" 73 fi 74 75 /bin/rm -rf $CROSSTOOL_FOLDER 76 if [ ! -e $TARBALLS_DIR/crosstool-${CROSSTOOL_VERSION}.tar.gz ]; then 77 ( 78 if cd $TARBALLS_DIR; then 79 wget -q -nc "http://kegel.com/crosstool/crosstool-${CROSSTOOL_VERSION}.tar.gz" 80 fi 81 ) 82 fi 83 /bin/tar -zxf $TARBALLS_DIR/crosstool-${CROSSTOOL_VERSION}.tar.gz 84 /bin/tar -C patches -cf - . | /bin/tar -C $CROSSTOOL_FOLDER/patches -xf - 85 ( 86 cd $CROSSTOOL_FOLDER 87 for f in ../crosstool-patches/* 88 do 89 patch -p1 -f < "$f" || exit $? 90 done 91 ./all.sh --notest 92 ) 93 # /bin/rm -rf $CROSSTOOL_FOLDER 94 } 95 96 97 ######################### 98 # Argument processing # 99 ######################### 100 101 if [ "$SHELL" = "/bin/tcsh" ]; then 102 abort "tcsh is not supported." 103 fi 104 105 set -- $(/usr/bin/getopt ht: "$@") 106 while [ "${1#-}" != "${1}" ]; do 107 case "$1" in 108 -h) usage; exit 1;; 109 -t) result_top="$2"; shift; shift;; 110 --) shift;; 111 esac 112 done 113 114 ######################### 115 # Settings # 116 ######################### 117 118 set -e # Exit immediately if a simple command fails. 119 set -x # Enable echo mode. 120 121 # Variables that are ignored by crosstool. 122 123 CROSSTOOL_VERSION=0.43 124 CROSSTOOL_FOLDER=$PWD/crosstool-$CROSSTOOL_VERSION 125 KERNEL_VERSION=2.6.22 126 export LC_ALL=C 127 128 129 # Variables that are used by the crosstool script as input. 130 131 # Directory where cross-compilation tools will be installed. 132 export RESULT_TOP=${result_top:-$HOME/x86_64-ppc} 133 # Directory where the tool tar files can be found. 134 export TARBALLS_DIR=$HOME/software/downloads 135 # Target architecture: Pentium CPU, Linux OS. 136 export TARGET=powerpc-linux 137 # Compilation flags for target tools such as glibc. 138 export TARGET_CFLAGS="-O" 139 # Binutils version. 140 export BINUTILS_DIR=binutils-2.16.1 141 # Languages that must be supported by the gcc cross-compiler. 142 export GCC_LANGUAGES="c,c++" 143 # GDB version. 144 export GDB_DIR=gdb-6.8 145 # Linux kernel version. 146 export LINUX_DIR=linux-$KERNEL_VERSION 147 # Linux kernel config. 148 export KERNELCONFIG=$PWD/kernel-config/$KERNEL_VERSION/.config 149 # Make flags 150 export PARALLELMFLAGS="-s -j3" 151 152 ############################## 153 # Cross-compiler generation. # 154 ############################## 155 156 if ! /bin/mkdir -p $RESULT_TOP; then 157 abort "You need write permission in $RESULT_TOP" 158 fi 159 160 if [ "$#" = 0 ]; then 161 generate_cross_compiler 4.1.1 2.3.6 162 elif [ "$#" = 2 ]; then 163 generate_cross_compiler "$1" "$2" 164 else 165 usage 166 abort "Wrong number of arguments." 167 fi 168
