MTD 248-645A Instrukcja Użytkownika Pobierz pdf (Strona 64)

Linux From Scratch - Version 7.0

5.9. Binutils-2.21.1a - Pass 2

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

Approximate build time: 1.1 SBU

Required disk space: 363 MB

5.9.1. Installation of Binutils

Create a separate build directory again:

mkdir -v ../binutils-build

cd ../binutils-build

Prepare Binutils for compilation:

CC="$LFS_TGT-gcc -B/tools/lib/" \

AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib \

../binutils-2.21.1/configure --prefix=/tools \

--disable-nls --with-lib-path=/tools/lib

The meaning of the new configure options:

CC="$LFS_TGT-gcc -B/tools/lib/" AR=$LFS_TGT-ar RANLIB=$LFS_TGT-ranlib

Because this is really a native build of Binutils, setting these variables ensures that the build system uses the

cross-compiler and associated tools instead of the ones on the host system.

--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.

Compile the package:

make

Install the package:

make install

Now prepare the linker for the “Re-adjusting” phase in the next chapter:

make -C ld clean

make -C ld LIB_PATH=/usr/lib:/lib

cp -v ld/ld-new /tools/bin

The meaning of the make parameters:

-C ld clean

This tells the make program to remove all compiled files in the ld subdirectory.

-C ld LIB_PATH=/usr/lib:/lib

This option rebuilds everything in the ld subdirectory. Specifying the LIB_PATH Makefile variable on the

command line allows us to override the default value of the temporary tools and point it to the proper final path.

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MTD 248-645A Instrukcja Użytkownika Strona 64