Details on this package are located in Section 8.18.2, “Contents of Binutils.”
The Binutils package contains a linker, an assembler, and other tools for handling object files.
Go back and re-read the notes in the section titled General Compilation Instructions. Understanding the notes labeled important can save you a lot of problems later.
It is important that Binutils be the first package compiled 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 in a dedicated build directory:
mkdir -v build cd build
In order for the SBU values listed in the rest of the book to be
of any use, measure the time it takes to build this package from
the configuration, up to and including the first install. To
achieve this easily, wrap the commands in a time command like this:
time { ../configure ...
&& make && make install; }
.
Now prepare Binutils for compilation:
../configure --prefix=$LFS/tools \ --with-sysroot=$LFS \ --target=$LFS_TGT \ --disable-nls \ --disable-werror
The meaning of the configure options:
--prefix=$LFS/tools
This tells the configure script to prepare to install the
binutils programs in the $LFS/tools
directory.
--with-sysroot=$LFS
For cross compilation, this tells the build system to look in $LFS for the target system libraries as needed.
--target=$LFS_TGT
Because the machine description in the LFS_TGT
variable is slightly different than
the value returned by the config.guess script, this
switch will tell the configure script to adjust
binutil's build system for building a cross linker.
--disable-nls
This disables internationalization as i18n is not needed for the temporary tools.
--disable-werror
This prevents the build from stopping in the event that there are warnings from the host's compiler.
Continue with compiling the package:
make
Install the package:
make install -j1
The meaning of the make parameter:
-j1
An issue in the building system may cause the installation to
fail with -j N
in MAKEFLAGS
. Override it to workaround this
issue.
Details on this package are located in Section 8.18.2, “Contents of Binutils.”