Author: jhuntwork
Date: 2008-10-19 13:19:00 -0600 (Sun, 19 Oct 2008)
New Revision: 8674
Modified:
branches/jh/BOOK/chapter01/changelog.xml
branches/jh/BOOK/chapter05/gcc-pass1.xml
branches/jh/BOOK/chapter05/gcc-pass2.xml
Log:
Moved gcc's bootstrap in the jh branch back to pass 1
Modified: branches/jh/BOOK/chapter01/changelog.xml
===================================================================
--- branches/jh/BOOK/chapter01/changelog.xml 2008-10-19 18:33:25 UTC (rev
8673)
+++ branches/jh/BOOK/chapter01/changelog.xml 2008-10-19 19:19:00 UTC (rev
8674)
@@ -38,6 +38,17 @@
-->
<listitem>
+ <para>2008-10-19</para>
+ <itemizedlist>
+ <listitem>
+ <para>[jhuntwork] - Move GCC's bootstrap back to pass 1 to
correspond more closely
+ with trunk. Cross compilation methods in the future can address the
issues originally
+ bypassed by moving the bootstrap to pass 2.</para>
+ </listitem>
+ </itemizedlist>
+ </listitem>
+
+ <listitem>
<para>2008-10-18</para>
<itemizedlist>
<listitem>
@@ -48,7 +59,6 @@
</itemizedlist>
</listitem>
-
<listitem>
<para>2008-10-15</para>
<itemizedlist>
Modified: branches/jh/BOOK/chapter05/gcc-pass1.xml
===================================================================
--- branches/jh/BOOK/chapter05/gcc-pass1.xml 2008-10-19 18:33:25 UTC (rev
8673)
+++ branches/jh/BOOK/chapter05/gcc-pass1.xml 2008-10-19 19:19:00 UTC (rev
8674)
@@ -112,18 +112,15 @@
</listitem>
</varlistentry>
- <varlistentry>
- <term><parameter>--disable-bootstrap</parameter></term>
- <listitem>
- <para>Bootstrapping the compiler is now the default for GCC. However,
- bootstrapping now would mean using our new Binutils to link against
- the host's libc, which in some cases produces unexpected
results.</para>
- </listitem>
- </varlistentry>
-
</variablelist>
- <para>Continue with compiling by running:</para>
+ <para>The following command will compile GCC not once, but several times.
It
+ uses the programs compiled in a first round to compile itself a second
time,
+ and then again a third time. It then compares these second and third
compiles
+ to make sure it can reproduce itself flawlessly. This is called
+ <quote>bootstrapping</quote>. Building GCC in this way ensures that it was
+ compiled correctly and is now the default configuration for the released
+ package. Continue with compiling by running:</para>
<screen><userinput remap="make">make</userinput></screen>
Modified: branches/jh/BOOK/chapter05/gcc-pass2.xml
===================================================================
--- branches/jh/BOOK/chapter05/gcc-pass2.xml 2008-10-19 18:33:25 UTC (rev
8673)
+++ branches/jh/BOOK/chapter05/gcc-pass2.xml 2008-10-19 19:19:00 UTC (rev
8674)
@@ -80,6 +80,16 @@
<screen><userinput remap="pre">cp -v gcc/Makefile.in{,.orig}
sed '[EMAIL PROTECTED]/[EMAIL PROTECTED] true@' gcc/Makefile.in.orig >
gcc/Makefile.in</userinput></screen>
+ <para>The bootstrap build performed in <xref linkend="ch-tools-gcc-pass1"/>
+ built GCC with the <option>-fomit-frame-pointer</option> compiler flag.
+ Non-bootstrap builds omit this flag by default, so apply the following
+ <command>sed</command> to use it in order to ensure consistent compiler
+ builds:</para>
+
+<screen><userinput remap="pre">cp -v gcc/Makefile.in{,.tmp}
+sed 's/^XCFLAGS =$/& -fomit-frame-pointer/' gcc/Makefile.in.tmp \
+ > gcc/Makefile.in</userinput></screen>
+
<para>The following command will change the location of GCC's default
dynamic linker to use the one we installed in
<filename class="directory">/tools</filename>. It also removes <filename
@@ -146,7 +156,8 @@
--with-local-prefix=/tools --enable-clocale=gnu \
--enable-shared --enable-threads=posix \
--enable-__cxa_atexit --enable-languages=c,c++ \
- --disable-libstdcxx-pch --disable-multilib</userinput></screen>
+ --disable-libstdcxx-pch --disable-multilib \
+ --disable-bootstrap</userinput></screen>
<variablelist>
<title>The meaning of the new configure options:</title>
@@ -201,15 +212,18 @@
</listitem>
</varlistentry>
+ <varlistentry>
+ <term><parameter>--disable-bootstrap</parameter></term>
+ <listitem>
+ <para>Bootstrapping the compiler is now the default for GCC. However,
+ our build method should provide us with a solid compiler without the
+ need to bootstrap each time.</para>
+ </listitem>
+ </varlistentry>
+
</variablelist>
- <para>The following command will compile GCC not once, but several times.
It
- uses the programs compiled in a first round to compile itself a second
time,
- and then again a third time. It then compares these second and third
compiles
- to make sure it can reproduce itself flawlessly. This is called
- <quote>bootstrapping</quote>. Building GCC in this way ensures that it was
- compiled correctly and is now the default configuration for the released
- package. Continue with compiling by running:</para>
+ <para>Compile the package:</para>
<screen><userinput remap="make">make</userinput></screen>
--
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