Details on this package are located in Section 6.10.3, “Contents of Binutils.”
The Binutils package contains a linker, an assembler, and other tools for handling object files.
It is important that Binutils be the first package compiled because both EGLIBC and GCC perform various tests on the available linker and assembler to determine which of their own features to enable.
The following patch contains a number of updates to the 2.19.1 branch by the Binutils developers:
patch -Np1 -i ../binutils-2.19.1-branch_update-5.patch
The Binutils documentation recommends building Binutils outside of the source directory in a dedicated build directory:
mkdir -v ../binutils-build cd ../binutils-build
Prepare Binutils for compilation:
AR=ar AS=as ../binutils-2.19.1/configure --prefix=${CLFS}/cross-tools \
--host=${CLFS_HOST} --target=${CLFS_TARGET} --with-sysroot=${CLFS} \
--disable-nls --enable-shared --disable-multilib
The meaning of the configure options:
--prefix=${CLFS}/cross-tools
This tells the configure script to prepare to install the
package in the ${CLFS}/cross-tools directory.
--host=${CLFS_HOST}
When used with --target, this creates a cross-architecture executable that creates files for ${CLFS_TARGET} but runs on ${CLFS_HOST}.
--target=${CLFS_TARGET}
When used with --host, this creates a cross-architecture executable that creates files for ${CLFS_TARGET} but runs on ${CLFS_HOST}.
--with-sysroot=${CLFS}
This tells configure that ${CLFS} is going to be the root of our system. It will now use the specified sysroot, ${CLFS}, as a prefix of the default search paths.
--disable-nls
This disables internationalization as i18n is not needed for the cross-compile tools.
--enable-shared
Enable the creation of the shared libraries.
--disable-multilib
This option disables the building of a multilib capable Binutils.
Compile the package:
make configure-host make
The meaning of the make options:
configure-host
This checks the host environment and makes sure all the necessary tools are available to compile Binutils.
Install the package:
make install
Install the libiberty header file
that is needed by some packages:
cp -v ../binutils-2.19.1/include/libiberty.h ${CLFS}/usr/include
Details on this package are located in Section 6.10.3, “Contents of Binutils.”