73 lines
2.0 KiB
Bash
Executable File
73 lines
2.0 KiB
Bash
Executable File
#!/bin/sh
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set -e
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echo "*** BUILD GLIBC BEGIN ***"
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SRC_DIR=$(pwd)
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# Read the 'JOB_FACTOR' property from '.config'
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JOB_FACTOR="$(grep -i ^JOB_FACTOR .config | cut -f2 -d'=')"
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# Read the 'CFLAGS' property from '.config'
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CFLAGS="$(grep -i ^CFLAGS .config | cut -f2 -d'=')"
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# Find the number of available CPU cores.
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NUM_CORES=$(grep ^processor /proc/cpuinfo | wc -l)
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# Calculate the number of 'make' jobs to be used later.
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NUM_JOBS=$((NUM_CORES * JOB_FACTOR))
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# Save the kernel installation directory.
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KERNEL_INSTALLED=$SRC_DIR/work/kernel/kernel_installed
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cd work/glibc
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# Find the glibc source directory, e.g. 'glibc-2.23' and remember it.
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cd $(ls -d glibc-*)
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GLIBC_SRC=$(pwd)
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cd ..
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# Prepare the work area, e.g. 'work/glibc/glibc_objects'.
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echo "Preparing glibc object area. This may take a while."
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rm -rf glibc_objects
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mkdir glibc_objects
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# Prepare the install area, e.g. 'work/glibc/glibc_installed'.
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echo "Preparing glibc install area. This may take a while."
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rm -rf glibc_installed
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mkdir glibc_installed
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GLIBC_INSTALLED=$(pwd)/glibc_installed
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# All glibc work is done from the working area.
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cd glibc_objects
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# glibc is configured to use the root folder (--prefix=) and as result all
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# libraries will be installed in '/lib'. Note that on 64-bit machines BusyBox
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# will be linked with the libraries in '/lib' while the Linux loader is expected
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# to be in '/lib64'. Kernel headers are taken from our already prepared kernel
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# header area (see xx_build_kernel.sh). Packages 'gd' and 'selinux' are disabled
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# for better build compatibility with the host system.
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echo "Configuring glibc."
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$GLIBC_SRC/configure \
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--prefix= \
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--with-headers=$KERNEL_INSTALLED/include \
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--without-gd \
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--without-selinux \
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--disable-werror \
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CFLAGS="$CFLAGS"
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# Compile glibc with optimization for "parallel jobs" = "number of processors".
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echo "Building glibc."
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make -j $NUM_JOBS
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# Install glibc in the installation area, e.g. 'work/glibc/glibc_installed'.
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echo "Installing glibc."
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make install \
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DESTDIR=$GLIBC_INSTALLED \
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-j $NUM_JOBS
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cd $SRC_DIR
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echo "*** BUILD GLIBC END ***"
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