Changeset 4e82d47 for chapter05/glibc.xml

Timestamp:

12/05/2008 08:46:02 PM (15 years ago)

Author:

Jeremy Huntwork <jhuntwork@…>

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, 6.5, 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:

6f2cc22

Parents:

6e88633

Message:

Bring in DIY's next generation build method. Move GRUB to chapter 8.

git-svn-id: ​http://svn.linuxfromscratch.org/LFS/trunk/BOOK@8755 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

File:

• chapter05/glibc.xml (modified) (5 diffs)

chapter05/glibc.xml

@@ -44 +44 @@
     <title>Installation of Glibc</title>
 
-    <para>Fix a potential issue if <filename>/etc/ld.so.preload</filename> is
-    used on the host system.</para>
-
-<screen><userinput remap="pre">sed -i 's@/etc/ld.so.preload@/tools/etc/ld.so.preload@' elf/rtld.c</userinput></screen>
-
     <para>The Glibc documentation recommends building Glibc outside of the source
     directory in a dedicated build directory:</para>
@@ -72 +67 @@
 
 <screen><userinput remap="configure">../glibc-&glibc-version;/configure --prefix=/tools \
+    --host=$LFS_TGT --build=$(../glibc-&glibc-version;/scripts/config.guess) \
     --disable-profile --enable-add-ons \
-    --enable-kernel=2.6.0 --with-binutils=/tools/bin \
-    --without-gd --with-headers=/tools/include \
-    --without-selinux</userinput></screen>
+    --enable-kernel=2.6.0 --with-headers=/tools/include \
+    libc_cv_forced_unwind=yes libc_cv_c_cleanup=yes</userinput></screen>
 
     <variablelist>
       <title>The meaning of the configure options:</title>
+
+      <varlistentry>
+        <term><parameter>--host=$LFS_TGT, --build=$(../glibc-&glibc-version;/scripts/config.guess)</parameter></term>
+        <listitem>
+          <para>The combined effect of these switches is that Glibc's build system
+          configures itself to cross-compile, using the cross-linker and
+          cross-compiler in <filename class="directory">/tools</filename>.</para>
+        </listitem>
+      </varlistentry>
 
       <varlistentry>
@@ -105 +109 @@
 
       <varlistentry>
-        <term><parameter>--with-binutils=/tools/bin</parameter></term>
-        <listitem>
-          <para>While not required, this switch ensures that there are
-          no errors pertaining to which Binutils programs get used during the
-          Glibc build.</para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
-        <term><parameter>--without-gd</parameter></term>
-        <listitem>
-          <para>This prevents the build of the <command>memusagestat</command>
-          program, which insists on linking against the host's libraries
-          (libgd, libpng, libz, etc.).</para>
-        </listitem>
-      </varlistentry>
-
-      <varlistentry>
         <term><parameter>--with-headers=/tools/include</parameter></term>
         <listitem>
@@ -132 +118 @@
 
       <varlistentry>
-        <term><parameter>--without-selinux</parameter></term>
+        <term><parameter>libc_cv_forced_unwind=yes</parameter></term>
         <listitem>
-          <para>When building from hosts that include SELinux functionality
-          (e.g., Fedora Core 3), Glibc will build with support for SELinux.
-          As the LFS tools environment does not contain support for SELinux, a
-          Glibc compiled with such support will fail to operate correctly.</para>
+          <para>The build requires support for forced unwind, but because it is
+          being cross compiled, it cannot auto detect it. Setting this variable
+          on the command line explicitly tells the configure script that support
+          is available.</para>
+        </listitem>
+      </varlistentry>
+      <varlistentry>
+        <term><parameter>libc_cv_c_cleanup=yes</parameter></term>
+        <listitem>
+          <para>The build also requires support for C cleanup handling, which it
+          cannot auto detect when being cross compiled. Enable it explicitly.</para>
         </listitem>
       </varlistentry>
@@ -168 +161 @@
     run at this time because we do not have a C++ compiler yet.</para>
 
-    <para>The install stage of Glibc will issue a harmless warning at the
-    end about the absence of <filename>/tools/etc/ld.so.conf</filename>.
-    Prevent this warning with:</para>
-
-<screen><userinput remap="install">mkdir -v /tools/etc
-touch /tools/etc/ld.so.conf</userinput></screen>
-
     <para>Install the package:</para>