lfs-book-i18n/zh_CN/chapter08/adjusting.po

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#. type: Content of: <sect1><title>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:11
msgid "Adjusting the Toolchain"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:13
msgid ""
"Now that the final C libraries have been installed, it is time to adjust the "
"toolchain so that it will link any newly compiled program against these new "
"libraries."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:17
msgid ""
"First, backup the <filename class=\"directory\">/tools</filename> linker, "
"and replace it with the adjusted linker we made in chapter 5. We'll also "
"create a link to its counterpart in <filename "
"class=\"directory\">/tools/$(uname -m)-pc-linux-gnu/bin</filename>:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:22
#, no-wrap
msgid ""
"<userinput>mv -v /tools/bin/{ld,ld-old}\n"
"mv -v /tools/$(uname -m)-pc-linux-gnu/bin/{ld,ld-old}\n"
"mv -v /tools/bin/{ld-new,ld}\n"
"ln -sv /tools/bin/ld /tools/$(uname -m)-pc-linux-gnu/bin/ld</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:27
msgid ""
"the next command amends the GCC specs file to achieve three goals: first "
"point GCC to the new dynamic linker. Simply deleting all instances of "
"<quote>/tools</quote> should leave us with the correct path to the dynamic "
"linker. Second, let GCC know where to find the Glibc start files. Third, add "
"the /usr/include directory at the end of the default search path, so that "
"header files added in chapter 6 are found.  A <command>sed</command> command "
"accomplishes this:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:35
#, no-wrap
msgid ""
"<userinput>gcc -dumpspecs | sed -e 's@/tools@@g'                   \\\n"
"    -e '/\\*startfile_prefix_spec:/{n;s@.*@/usr/lib/ @}' \\\n"
"    -e '/\\*cpp:/{n;s@$@ -idirafter /usr/include@}' &gt;      \\\n"
"    `dirname $(gcc --print-libgcc-file-name)`/specs</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:40
msgid ""
"It is a good idea to visually inspect the specs file to verify the intended "
"change was actually made."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:43
msgid ""
"It is imperative at this point to ensure that the basic functions (compiling "
"and linking) of the adjusted toolchain are working as expected. To do this, "
"perform the following sanity checks:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:47
#, no-wrap
msgid ""
"<userinput>echo 'int main(){}' &gt; dummy.c\n"
"cc dummy.c -v -Wl,--verbose &amp;&gt; dummy.log\n"
"readelf -l a.out | grep ': /lib'</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:51
msgid ""
"There should be no errors, and the output of the last command will be "
"(allowing for platform-specific differences in the dynamic linker name):"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:55
#, no-wrap
msgid ""
"<computeroutput>[Requesting program interpreter: "
"/lib64/ld-linux-x86-64.so.2]</computeroutput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:57
msgid ""
"Note that on 64-bit systems <filename class=\"directory\">/lib</filename> is "
"the location of our dynamic linker, but is accessed via a symbolic link in "
"/lib64."
msgstr ""

#. type: Content of: <sect1><note><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:61
msgid "On 32-bit systems the interpreter should be /lib/ld-linux.so.2."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:64
msgid "Now make sure that we're setup to use the correct start files:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:66
#, no-wrap
msgid "<userinput>grep -o '/usr/lib.*/crt[1in].*succeeded' dummy.log</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:68
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:103
msgid "The output of the last command should be:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:70
#, no-wrap
msgid ""
"<computeroutput>/usr/lib/../lib/crt1.o succeeded\n"
"/usr/lib/../lib/crti.o succeeded\n"
"/usr/lib/../lib/crtn.o succeeded</computeroutput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:74
msgid "Verify that the compiler is searching for the correct header files:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:77
#, no-wrap
msgid "<userinput>grep -B4 '^ /usr/include' dummy.log</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:79
msgid "This command should return the following output:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:81
#, no-wrap
msgid ""
"<computeroutput>#include &lt;...&gt; search starts here:\n"
" /tools/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include\n"
" /tools/include\n"
" /tools/lib/gcc/x86_64-pc-linux-gnu/&gcc-version;/include-fixed\n"
" /usr/include</computeroutput>"
msgstr ""

#. type: Content of: <sect1><note><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:87
msgid "On a 32 bit system, x86_64 is replaced with i686."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:89
msgid ""
"Next, verify that the new linker is being used with the correct search "
"paths:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:91
#, no-wrap
msgid "<userinput>grep 'SEARCH.*/usr/lib' dummy.log |sed 's|; |\\n|g'</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:93
msgid ""
"References to paths that have components with '-linux-gnu' should be "
"ignored, but otherwise the output of the last command should be:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:96
#, no-wrap
msgid ""
"<computeroutput>SEARCH_DIR(\"/usr/lib\")\n"
"SEARCH_DIR(\"/lib\")</computeroutput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:99
msgid "Next make sure that we're using the correct libc:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:101
#, no-wrap
msgid "<userinput>grep \"/lib.*/libc.so.6 \" dummy.log</userinput>"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:105
#, no-wrap
msgid "<computeroutput>attempt to open /lib/libc.so.6 succeeded</computeroutput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:107
msgid "Make sure GCC is using the correct dynamic linker:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:109
#, no-wrap
msgid "<userinput>grep found dummy.log</userinput>"
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:111
msgid ""
"The output of the last command should be (allowing for platform-specific "
"differences in dynamic linker name):"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:114
#, no-wrap
msgid ""
"<computeroutput>found ld-linux-x86-64.so.2 at "
"/lib/ld-linux-x86-64.so.2</computeroutput>"
msgstr ""

#. The most likely
#.   reason is that something went wrong with the specs file adjustment.
#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:116
msgid ""
"If the output does not appear as shown above or is not received at all, then "
"something is seriously wrong. Investigate and retrace the steps to find out "
"where the problem is and correct it.  Any issues will need to be resolved "
"before continuing with the process."
msgstr ""

#. type: Content of: <sect1><para>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:122
msgid "Once everything is working correctly, clean up the test files:"
msgstr ""

#. type: Content of: <sect1><screen>
#: /home/xry111/svn-repos/LFS-BOOK/chapter08/adjusting.xml:124
#, no-wrap
msgid "<userinput>rm -v dummy.c a.out dummy.log</userinput>"
msgstr ""