mirror of
https://git.linuxfromscratch.org/lfs.git
synced 2025-06-21 04:39:21 +01:00
Minor touchups.
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2969 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
This commit is contained in:
parent
f27835d93f
commit
a3f6e12435
@ -24,9 +24,6 @@ are able to resolve the issue. You can consult the LFS Wiki at
|
||||
<ulink url="http://wiki.linuxfromscratch.org/"/> for more information on how to
|
||||
get PTYs working.</para>
|
||||
|
||||
<note><para>It's worth pointing out that the GCC test suite we run in this
|
||||
section is considered not as important as the one we run in Chapter 6.</para></note>
|
||||
|
||||
<para>Unpack all three GCC tarballs (-core, -g++, and -testsuite) in one and the
|
||||
same working directory. They will all unfold into a single
|
||||
<filename>gcc-&gcc-version;/</filename> subdirectory.</para>
|
||||
|
@ -38,7 +38,7 @@ something completely different. You should be able to determine the name
|
||||
of your platform's dynamic linker by looking in the
|
||||
<filename class="directory">/lib</filename> directory on your host system. A
|
||||
surefire way is to inspect a random binary from your host system by running:
|
||||
<userinput>`readelf -l <name of binary> | grep interpreter`</userinput>
|
||||
<userinput>'readelf -l <name of binary> | grep interpreter'</userinput>
|
||||
and noting the output. The authoritative reference covering all platforms is in
|
||||
the <filename>shlib-versions</filename> file in the root of the Glibc source
|
||||
tree.</para>
|
||||
@ -75,11 +75,11 @@ much time is wasted.</para>
|
||||
the tools in one location are hard linked to the other. An important facet of
|
||||
the linker is its library search order. Detailed information can be obtained
|
||||
from <userinput>ld</userinput> by passing it the <emphasis>--verbose</emphasis>
|
||||
flag. For example: <userinput>`ld --verbose | grep SEARCH`</userinput> will
|
||||
flag. For example: <userinput>'ld --verbose | grep SEARCH'</userinput> will
|
||||
show you the current search paths and their order. You can see what files are
|
||||
actually linked by <userinput>ld</userinput> by compiling a dummy program and
|
||||
passing the <emphasis>--verbose</emphasis> switch. For example:
|
||||
<userinput>`gcc dummy.c -Wl,--verbose 2>&1 | grep succeeded`</userinput>
|
||||
<userinput>'gcc dummy.c -Wl,--verbose 2>&1 | grep succeeded'</userinput>
|
||||
will show you all the files successfully opened during the link.</para>
|
||||
|
||||
<para>The next package installed is GCC and during its run of
|
||||
@ -93,10 +93,10 @@ that GCC's configure script does not search the $PATH directories to find which
|
||||
tools to use. However, during the actual operation of <userinput>gcc</userinput>
|
||||
itself, the same search paths are not necessarily used. You can find out which
|
||||
standard linker <userinput>gcc</userinput> will use by running:
|
||||
<userinput>`gcc -print-prog-name=ld`</userinput>.
|
||||
<userinput>'gcc -print-prog-name=ld'</userinput>.
|
||||
Detailed information can be obtained from <userinput>gcc</userinput> by passing
|
||||
it the <emphasis>-v</emphasis> flag while compiling a dummy program. For
|
||||
example: <userinput>`gcc -v dummy.c`</userinput> will show you detailed
|
||||
example: <userinput>'gcc -v dummy.c'</userinput> will show you detailed
|
||||
information about the preprocessor, compilation and assembly stages, including
|
||||
<userinput>gcc</userinput>'s include search paths and their order.</para>
|
||||
|
||||
@ -126,7 +126,7 @@ linker in <filename class="directory">/tools/lib</filename>. This last step is
|
||||
<emphasis>vital</emphasis> to the whole process. As mentioned above, a
|
||||
hard-wired path to a dynamic linker is embedded into every ELF shared
|
||||
executable. You can inspect this by running:
|
||||
<userinput>`readelf -l <name of binary> | grep interpreter`</userinput>.
|
||||
<userinput>'readelf -l <name of binary> | grep interpreter'</userinput>.
|
||||
By amending <userinput>gcc</userinput>'s specs file, we are ensuring that every
|
||||
program compiled from here through the end of Chapter 5 will use our new
|
||||
dynamic linker in <filename class="directory">/tools/lib</filename>.</para>
|
||||
|
@ -70,7 +70,7 @@ compiler. To satisfy those packages, create a symlink:</para>
|
||||
<screen><userinput>ln -s gcc /usr/bin/cc</userinput></screen>
|
||||
|
||||
<note><para>At this point it is strongly recommended to repeat the sanity check
|
||||
we performed in the previous chapter. Refer back to
|
||||
we performed earlier in this chapter. Refer back to
|
||||
<xref linkend="ch06-adjustingtoolchain"/> and repeat the check. If the results
|
||||
are wrong, then most likely you erroneously applied the GCC Specs patch from
|
||||
Chapter 5.</para></note>
|
||||
|
Loading…
Reference in New Issue
Block a user