MTD 248-645A Manual de usuario descargar pdf (Pagina 55)

Linux From Scratch - Version 7.0

5.4. Binutils-2.21.1a - Pass 1

The Binutils package contains a linker, an assembler, and other tools for handling object files.

Approximate build time: 1 SBU

Required disk space: 350 MB

5.4.1. Installation of Cross Binutils

Note

Go back and re-read the notes in the previous section. Understanding the notes labeled important will 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 outside of the source directory in a dedicated build

directory:

mkdir -v ../binutils-build

cd ../binutils-build

Note

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

three commands in a time command like this: time { ./configure ... && make && make

install; }.

Note

The approximate build SBU values and required disk space in Chapter 5 does not include test suite data.

Now prepare Binutils for compilation:

../binutils-2.21.1/configure \

--target=$LFS_TGT --prefix=/tools \

--disable-nls --disable-werror

The meaning of the configure options:

--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.

--prefix=/tools

This tells the configure script to prepare to install the Binutils programs in the /tools directory.

--disable-nls

This disables internationalization as i18n is not needed for the temporary tools.

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MTD 248-645A Manual de usuario Pagina 55