Details on this package are located in Section 10.18.2, “Contents of Binutils.”
The Binutils package contains a linker, an assembler, and other tools for handling object files.
It is important that Binutils be compiled before Glibc and GCC because both Glibc and GCC perform various tests on the available linker and assembler to determine which of their own features to enable.
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-2.24/configure \
--prefix=/cross-tools --host=${CLFS_HOST} --target=${CLFS_TARGET} \
--with-sysroot=${CLFS} --with-lib-path=/tools/lib --disable-nls \
--disable-static --enable-64-bit-bfd --disable-multilib --disable-werror
The meaning of the new configure options:
AR=ar
AS=as
This prevents Binutils from compiling with ${CLFS_HOST}-ar and ${CLFS_HOST}-as as they are provided by this package and therefore not installed yet.
--host=${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}
Tells configure to build a linker that uses ${CLFS} as its root directory for its search paths.
--with-lib-path=/tools/lib
This tells the configure script to specify the library search
path during the compilation of Binutils, resulting in
/tools/lib being passed to the
linker. This prevents the linker from searching through
library directories on the host.
--disable-nls
This disables internationalization as i18n is not needed for the cross-compile tools.
--disable-multilib
This option disables the building of a multilib capable Binutils.
--enable-64-bit-bfd
This adds 64 bit support to Binutils.
--disable-werror
This prevents the build from stopping in the event that there are warnings from the host's compiler.
Compile the package:
make
Install the package:
make install
Details on this package are located in Section 10.18.2, “Contents of Binutils.”