diff --git a/chapter05/lockingglibc.xml b/chapter05/lockingglibc.xml index 686934828..3c21e8c97 100644 --- a/chapter05/lockingglibc.xml +++ b/chapter05/lockingglibc.xml @@ -2,38 +2,33 @@ "Locking in" Glibc -   +Now that the temporary C libraries have been installed, we want all +the tools compiled in the rest of this chapter to be linked against these +libraries. To accomplish this, we need to adjust the linker's scripts and the +compiler's specs file. - -Installation of the linker scripts - -Run the following command from within the binutils-build directory: +First install the adjusted linker scripts by running the following from +within the binutils-build +directory: make -C ld install-data-local -This installs the adjusted linker scripts. Remember they were adjusted -a little while back, at the end of the first pass of Binutils? The linker -scripts now contain no mention of /lib, +These scripts were adjusted a little while back, at the end of the first +pass of Binutils, and contain no mention of /lib, /usr/lib or /usr/local/lib. From this point onwards everything will link only against the libraries in /stage1/lib. You can now remove Binutils' build and source directories. - - - -Amending GCC's specs file - -The final thing to do is to amend our GCC specs file so that it points +The other thing to do is to amend our GCC specs file so that it points to the new dynamic linker. A simple sed will accomplish this: SPECFILE=/stage1/lib/gcc-lib/*/*/specs sed -e 's@/lib/ld.so.1@/stage1/lib/ld.so.1@g' \     -e 's@/lib/ld-linux.so.2@/stage1/lib/ld-linux.so.2@g' \ -    $SPECFILE > XX -mv XX $SPECFILE +    $SPECFILE > tempspecfile +mv tempspecfile $SPECFILE unset SPECFILE We recommend that you cut-and-paste the above rather than try and type @@ -43,7 +38,5 @@ it all in. Or you can edit the specs file by hand if you want to: just replace This completes the installation of the self-contained toolchain, which can now be used to build the rest of the temporary tools. - - diff --git a/chapter06/adjustingtoolchain.xml b/chapter06/adjustingtoolchain.xml index f302cd014..d962f6ee2 100644 --- a/chapter06/adjustingtoolchain.xml +++ b/chapter06/adjustingtoolchain.xml @@ -1,20 +1,20 @@ -Adjusting toolchain +Re-adjusting the toolchain -Now that we have compiled all the necessary tools, it is time to -re-adjust our toolchain. We will set it up so that it will link any newly -compiled program against the new Glibc. Basically, this is the reverse of -what we did in the "Locking in" stage in the beginning of chapter 5. +Now that the new C libraries have been installed, it's time to re-adjust +our toolchain. We'll adjust it so that it will link any newly compiled program +against the new C libraries. Basically, this is the reverse of what we did +in the "Locking in" stage in the beginning of the previous chapter. The first thing to do is to adjust the linker scripts. For this we -retained the binutils-build -directory from the second pass over Binutils. Run the following: +retained the source and build directories from the second pass over Binutils. +Install the adjusted linker scripts by running the following from within the +binutils-build directory: -cd binutils-build -make -C ld INSTALL=/stage1/bin/install install-data-local +make -C ld INSTALL=/stage1/bin/install install-data-local -This installs the adjusted linker scripts. The linker scripts contain +The linker scripts now contain no mention of /stage1/lib anymore. From now on every compiled program will link only against the libraries in /usr/lib and @@ -32,12 +32,13 @@ this: SPECFILE=/stage1/lib/gcc-lib/*/*/specs sed -e 's@/stage1/lib/ld.so.1@/lib/ld.so.1@g' \ -    -e 's@/stage1/lib/ld-linux.so.2@/lib/ld-linux.so.2@g' $SPECFILE > XX -mv XX $SPECFILE +    -e 's@/stage1/lib/ld-linux.so.2@/lib/ld-linux.so.2@g' +    $SPECFILE > newspecfile +mv newspecfile $SPECFILE unset SPECFILE Again, cutting and pasting the above is recommended. And just like -before, it is a good idea to check the linker scripts and the specs file o +before, it is a good idea to check the linker scripts and the specs file to ensure the intended changes were actually made. Note that the linker scripts will still contain a reference to