Ignore:
Timestamp:
03/23/2007 09:05:26 PM (17 years ago)
Author:
Dan Nichilson <dnicholson@…>
Branches:
10.0, 10.0-rc1, 10.1, 10.1-rc1, 11.0, 11.0-rc1, 11.0-rc2, 11.0-rc3, 11.1, 11.1-rc1, 11.2, 11.2-rc1, 11.3, 11.3-rc1, 12.0, 12.0-rc1, 12.1, 12.1-rc1, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 7.0, 7.1, 7.2, 7.3, 7.4, 7.5, 7.5-systemd, 7.6, 7.6-systemd, 7.7, 7.7-systemd, 7.8, 7.8-systemd, 7.9, 7.9-systemd, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, arm, bdubbs/gcc13, ml-11.0, multilib, renodr/libudev-from-systemd, s6-init, trunk, xry111/arm64, xry111/arm64-12.0, xry111/clfs-ng, xry111/lfs-next, xry111/loongarch, xry111/loongarch-12.0, xry111/loongarch-12.1, xry111/mips64el, xry111/pip3, xry111/rust-wip-20221008, xry111/update-glibc
Children:
a4cb337
Parents:
8bfbf40
Message:

Readjust the gcc header search path to include /usr/include and test it

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/trunk/BOOK@7972 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:
1 edited

Legend:

Unmodified
Added
Removed

  • chapter06/readjusting.xml

    r8bfbf40 re9a652b  
    4545  </important>
    4646
    47 <screen><userinput>gcc -dumpspecs | \
    48 perl -p -e 's@/tools/lib/ld-linux.so.2@/lib/ld-linux.so.2@g;' \
    49     -e 's@\*startfile_prefix_spec:\n@$_/usr/lib/ @g;' &gt; \
     47<screen><userinput>gcc -dumpspecs | sed \
     48    -e 's@/tools/lib/ld-linux.so.2@/lib/ld-linux.so.2@g' \
     49    -e '/\*startfile_prefix_spec:/{n;s@.*@/usr/lib/ @}' \
     50    -e '/\*cpp:/{n;s@$@ -isystem /usr/include@}' &gt; \
    5051    `dirname $(gcc --print-libgcc-file-name)`/specs</userinput></screen>
    5152
    … …  
    5859
    5960<screen role="nodump" os="a"><userinput>echo 'main(){}' &gt; dummy.c
    60 cc dummy.c -Wl,--verbose &amp;&gt; dummy.log
     61cc dummy.c -v -Wl,--verbose &amp;&gt; dummy.log
    6162readelf -l a.out | grep ': /lib'</userinput></screen>
    6263
    … …  
    8182/usr/lib/crtn.o succeeded</computeroutput></screen>
    8283
    83   <para os="g">Next, verify that the new linker is being used with the correct search paths:</para>
     84  <para os="g">Verify that the compiler is searching for the correct header
     85  files:</para>
    8486
    85 <screen role="nodump" os="h"><userinput>grep 'SEARCH.*/usr/lib' dummy.log |sed 's|; |\n|g'</userinput></screen>
     87<screen role="nodump"><userinput>grep -B1 '^ /usr/include' dummy.log</userinput></screen>
    8688
    87   <para os="i">If everything is working correctly, there should be no errors,
     89  <para os="h">This command should return successfully with the following output:</para>
     90
     91<screen><computeroutput>#include &lt;...&gt; search starts here:
     92 /usr/include</computeroutput></screen>
     93
     94  <para os="i">Next, verify that the new linker is being used with the correct search paths:</para>
     95
     96<screen role="nodump" os="j"><userinput>grep 'SEARCH.*/usr/lib' dummy.log |sed 's|; |\n|g'</userinput></screen>
     97
     98  <para os="k">If everything is working correctly, there should be no errors,
    8899  and the output of the last command will be:</para>
    89100
    … …  
    92103SEARCH_DIR("/lib");</computeroutput></screen>
    93104
    94   <para os="j">Next make sure that we're using the correct libc:</para>
     105  <para os="l">Next make sure that we're using the correct libc:</para>
    95106
    96 <screen role="nodump" os="k"><userinput>grep "/lib/libc.so.6 " dummy.log</userinput></screen>
     107<screen role="nodump" os="m"><userinput>grep "/lib/libc.so.6 " dummy.log</userinput></screen>
    97108
    98   <para os="l">If everything is working correctly, there should be no errors,
     109  <para os="n">If everything is working correctly, there should be no errors,
    99110  and the output of the last command will be:</para>
    100111
    101 <screen os="m"><computeroutput>attempt to open /lib/libc.so.6 succeeded</computeroutput></screen>
     112<screen os="o"><computeroutput>attempt to open /lib/libc.so.6 succeeded</computeroutput></screen>
    102113
    103   <para os="n">Lastly, make sure GCC is using the correct dynamic linker:</para>
     114  <para os="p">Lastly, make sure GCC is using the correct dynamic linker:</para>
    104115
    105 <screen role="nodump" os="o"><userinput>grep found dummy.log</userinput></screen>
     116<screen role="nodump" os="q"><userinput>grep found dummy.log</userinput></screen>
    106117
    107   <para os="p">If everything is working correctly, there should be no errors,
     118  <para os="r">If everything is working correctly, there should be no errors,
    108119  and the output of the last command will be (allowing for
    109120  platform-specific differences in dynamic linker name):</para>
    110121
    111 <screen os="q"><computeroutput>found ld-linux.so.2 at /lib/ld-linux.so.2</computeroutput></screen>
     122<screen os="s"><computeroutput>found ld-linux.so.2 at /lib/ld-linux.so.2</computeroutput></screen>
    112123
    113   <para os="r">If the output does not appear as shown above or is not received
     124  <para os="t">If the output does not appear as shown above or is not received
    114125  at all, then something is seriously wrong. Investigate and retrace the
    115126  steps to find out where the problem is and correct it. The most likely
    … …  
    117128  issues will need to be resolved before continuing on with the process.</para>
    118129
    119   <para os="s">Once everything is working correctly, clean up the test files:</para>
     130  <para os="u">Once everything is working correctly, clean up the test files:</para>
    120131
    121 <screen role="nodump" os="t"><userinput>rm -v dummy.c a.out dummy.log</userinput></screen>
     132<screen role="nodump" os="v"><userinput>rm -v dummy.c a.out dummy.log</userinput></screen>
    122133
    123134</sect1>
Note: See TracChangeset for help on using the changeset viewer.