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Fixed sanity checks to work after final GCC and changed their format.
Resolves ticket #1768. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7583 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
This commit is contained in:
Jeremy Huntwork
parent
fffff976f5
commit
09f1daf453
@ -39,6 +39,10 @@
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<listitem>
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<para>May 2, 2006</para>
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<itemizedlist>
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<listitem>
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<para>[jhuntwork] - Fixed sanity checks to work after final GCC
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and changed their format. Resolves ticket #1768.</para>
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</listitem>
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<listitem>
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<para>[archaic] - Removed mention of usbfs from the fstab page since
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it is already covered in BLFS.</para>
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@ -112,14 +112,98 @@ cd ../gcc-build</userinput></screen>
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<screen><userinput>ln -sv gcc /usr/bin/cc</userinput></screen>
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<note>
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<para>At this point, it is strongly recommended to repeat the sanity
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check performed earlier in this chapter. Refer back to <xref
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linkend="ch-system-readjusting" role=","/> and repeat the check. If
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the results are in error, then the most likely reason is that the GCC
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Specs patch from <xref linkend="chapter-temporary-tools"/> was
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erroneously applied here.</para>
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</note>
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<para>Now that our final toolchain is in place, it is important to again ensure
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that compiling and linking will work as expected. We do this by performing
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the same sanity checks as we did earlier in the chapter:</para>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='a'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='b'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='c'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='d'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='e'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='f'])"/>
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<screen><computeroutput>/usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crt1.o succeeded
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/usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crti.o succeeded
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/usr/lib/gcc/i686-pc-linux-gnu/&gcc-version;/../../../crtn.o succeeded</computeroutput></screen>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='g'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='h'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='i'])"/>
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<screen><computeroutput>SEARCH_DIR("/usr/i686-pc-linux-gnu/lib")
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SEARCH_DIR("/usr/local/lib")
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SEARCH_DIR("/lib")
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SEARCH_DIR("/usr/lib");</computeroutput></screen>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='j'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='k'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='l'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='m'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='n'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='o'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='p'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='q'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='r'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='s'])"/>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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href="readjusting.xml"
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xpointer="xpointer(//*[@os='t'])"/>
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</sect2>
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@ -52,65 +52,72 @@ perl -p -e 's@/tools/lib/ld-linux.so.2@/lib/ld-linux.so.2@g;' \
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linkend="ch-tools-toolchaintechnotes" role=","/> if necessary.</para>
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</important>
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<caution>
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<para>It is imperative at this point to stop and ensure that the basic
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functions (compiling and linking) of the adjusted toolchain are working
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as expected. To do this, perform a sanity check:</para>
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<para>It is imperative at this point to ensure that the basic
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functions (compiling and linking) of the adjusted toolchain are working
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as expected. To do this, perform the following sanity checks:</para>
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<screen><userinput>echo 'main(){}' > dummy.c
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<screen role="nodump" os="a"><userinput>echo 'main(){}' > dummy.c
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cc dummy.c -Wl,--verbose &> dummy.log
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readelf -l a.out | grep ': /lib'</userinput></screen>
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<para>If everything is working correctly, there should be no errors,
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and the output of the last command will be (allowing for
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platform-specific differences in dynamic linker name):</para>
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<para os="b">If everything is working correctly, there should be no errors,
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and the output of the last command will be (allowing for
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platform-specific differences in dynamic linker name):</para>
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<screen><computeroutput>[Requesting program interpreter: /lib/ld-linux.so.2]</computeroutput></screen>
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<screen os="c"><computeroutput>[Requesting program interpreter: /lib/ld-linux.so.2]</computeroutput></screen>
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<para>Note that <filename class="directory">/lib</filename> is now
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the prefix of our dynamic linker.</para>
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<para>Note that <filename class="directory">/lib</filename> is now
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the prefix of our dynamic linker.</para>
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<para>Now make sure that we're setup to use the correct start files:</para>
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<para os="d">Now make sure that we're setup to use the correct startfiles:</para>
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<screen><userinput>grep "/usr/lib/crt.* " dummy.log</userinput></screen>
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<screen role="nodump" os="e"><userinput>grep -o '/usr/lib.*/crt[1in].* .*' dummy.log</userinput></screen>
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<para>If everything is working correctly, there should be no errors,
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<para os="f">If everything is working correctly, there should be no errors,
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and the output of the last command will be:</para>
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<screen><computeroutput>attempt to open /usr/lib/crt1.o succeeded
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attempt to open /usr/lib/crti.o succeeded
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attempt to open /usr/lib/crtn.o succeeded</computeroutput></screen>
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<screen><computeroutput>/usr/lib/crt1.o succeeded
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/usr/lib/crti.o succeeded
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/usr/lib/crtn.o succeeded</computeroutput></screen>
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<para>Next make sure that we're using the correct libc:</para>
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<para os="g">Next, verify that the new linker is being used with the correct search paths:</para>
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<screen><userinput>grep "/lib/libc.so.6 " dummy.log</userinput></screen>
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<screen role="nodump" os="h"><userinput>grep 'SEARCH.*/usr/lib' dummy.log |sed 's|; |\n|g'</userinput></screen>
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<para>If everything is working correctly, there should be no errors,
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and the output of the last command will be:</para>
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<para os="i">If everything is working correctly, there should be no errors,
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and the output of the last command will be:</para>
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<screen><computeroutput>attempt to open /lib/libc.so.6 succeeded</computeroutput></screen>
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<screen><computeroutput>SEARCH_DIR("/tools/i686-pc-linux-gnu/lib")
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SEARCH_DIR("/usr/lib")
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SEARCH_DIR("/lib");</computeroutput></screen>
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<para>Lastly, make sure GCC is using the correct dynamic linker:</para>
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<para os="j">Next make sure that we're using the correct libc:</para>
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<screen><userinput>grep found dummy.log</userinput></screen>
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<screen role="nodump" os="k"><userinput>grep "/lib/libc.so.6 " dummy.log</userinput></screen>
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<para>If everything is working correctly, there should be no errors,
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and the output of the last command will be (allowing for
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platform-specific differences in dynamic linker name):</para>
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<para os="l">If everything is working correctly, there should be no errors,
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and the output of the last command will be:</para>
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<screen><computeroutput>found ld-linux.so.2 at /lib/ld-linux.so.2</computeroutput></screen>
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<screen os="m"><computeroutput>attempt to open /lib/libc.so.6 succeeded</computeroutput></screen>
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<para>If the output does not appear as shown above or is not received
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at all, then something is seriously wrong. Investigate and retrace the
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steps to find out where the problem is and correct it. The most likely
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reason is that something went wrong with the specs file amendment
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above. Any issues will need to be resolved before continuing on with
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the process.</para>
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<para os="n">Lastly, make sure GCC is using the correct dynamic linker:</para>
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<para>Once everything is working correctly, clean up the test
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files:</para>
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<screen role="nodump" os="o"><userinput>grep found dummy.log</userinput></screen>
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<screen><userinput>rm -v dummy.c a.out dummy.log</userinput></screen>
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</caution>
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<para os="p">If everything is working correctly, there should be no errors,
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and the output of the last command will be (allowing for
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platform-specific differences in dynamic linker name):</para>
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<screen os="q"><computeroutput>found ld-linux.so.2 at /lib/ld-linux.so.2</computeroutput></screen>
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<para os="r">If the output does not appear as shown above or is not received
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at all, then something is seriously wrong. Investigate and retrace the
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steps to find out where the problem is and correct it. The most likely
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reason is that something went wrong with the specs file adjustment. Any
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issues will need to be resolved before continuing on with the process.</para>
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<para os="s">Once everything is working correctly, clean up the test files:</para>
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<screen role="nodump" os="t"><userinput>rm -v dummy.c a.out dummy.log</userinput></screen>
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</sect1>
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