diff options
Diffstat (limited to 'chapter06')
| -rw-r--r-- | chapter06/adjustingtoolchain.xml | 28 | ||||
| -rw-r--r-- | chapter06/binutils-inst.xml | 4 | ||||
| -rw-r--r-- | chapter06/gcc-inst.xml | 3 | ||||
| -rw-r--r-- | chapter06/glibc-inst.xml | 3 |
4 files changed, 38 insertions, 0 deletions
diff --git a/chapter06/adjustingtoolchain.xml b/chapter06/adjustingtoolchain.xml index fd5ba1676..522727785 100644 --- a/chapter06/adjustingtoolchain.xml +++ b/chapter06/adjustingtoolchain.xml @@ -43,5 +43,33 @@ is unavoidable, but luckily does not present a problem. There are no libraries in that location as all the temporary tools libraries are located in <filename class="directory">/tools/lib</filename>.</para> +<caution><para>It is imperative at this point to stop and ensure that the +basic functionality of the adjusted toolchain is working as expected. We are +going to perform a simple sanity check:</para> + +<para><screen><userinput>echo 'main(){}' > dummy.c +gcc dummy.c +readelf -l a.out | grep ': /lib'</userinput></screen></para> + +<para>If everything is working correctly, the output of the last command will +be:</para> + +<para><screen>[Requesting program interpreter: /lib/ld-linux.so.2] +</screen></para> + +<para>If you did not receive the output as shown above then something is +seriously wrong. You will need to investigate and retrace your steps to find +out where the problem is and correct it. There is no point in continuing +until this is done. Most likely, something went wrong with the specs file +amendment above. Note especially that <filename>/lib</filename> now appears as +the prefix of our dynamic linker. Of course, if you are working on a platform +where the name of the dynamic linker is something other than <filename> +ld-linux.so.2</filename> then the output will be slightly different.</para> + +<para>Once you are satisfied that all is well, clean up the test files:</para> + +<para><screen><userinput>rm dummy.c a.out</userinput></screen></para> +</caution> + </sect1> diff --git a/chapter06/binutils-inst.xml b/chapter06/binutils-inst.xml index d55f9b49a..c414e52a4 100644 --- a/chapter06/binutils-inst.xml +++ b/chapter06/binutils-inst.xml @@ -2,6 +2,10 @@ <sect2><title>Installation of Binutils</title> +<note><para>The testsuite for Binutils in this chapter is considered +<emphasis>critical</emphasis>. Do not skip it under any circumstances.</para> +</note> + <para>This package is known to behave badly when you have changed its default optimization flags (including the -march and -mcpu options). Therefore, if you have defined any environment variables that override diff --git a/chapter06/gcc-inst.xml b/chapter06/gcc-inst.xml index 5e5dab528..21e22c55c 100644 --- a/chapter06/gcc-inst.xml +++ b/chapter06/gcc-inst.xml @@ -3,6 +3,9 @@ <sect2> <title>Installation of GCC</title> +<note><para>The testsuite for GCC in this chapter is considered <emphasis> +critical</emphasis>. Do not skip it under any circumstances.</para></note> + <para>This package is known to behave badly when you have changed its default optimization flags (including the -march and -mcpu options). Therefore, if you have defined any environment variables that override diff --git a/chapter06/glibc-inst.xml b/chapter06/glibc-inst.xml index 376bbdacf..099dc4dc9 100644 --- a/chapter06/glibc-inst.xml +++ b/chapter06/glibc-inst.xml @@ -9,6 +9,9 @@ pointing at <filename>/tools</filename>. We cannot adjust the specs and ldscripts before the Glibc install, because the Glibc autoconf tests would then give bogus results and thus defeat our goal of achieving a clean build.</para> +<note><para>The testsuite for Glibc in this chapter is considered <emphasis> +critical</emphasis>. Do not skip it under any circumstances.</para></note> + <para>Before starting to build Glibc, remember to unpack the Glibc-linuxthreads again inside the <filename>glibc-&glibc-version;</filename> directory, and to unset any environment variables that override the default optimization |