Changeset 217802b

Timestamp:

08/19/2024 05:56:08 AM (4 weeks ago)

Author:

Xi Ruoyao <xry111@…>

Branches:

12.2, multilib, trunk, xry111/arm64, xry111/clfs-ng, xry111/loongarch, xry111/loongarch-12.2, xry111/mips64el, xry111/multilib

Children:

d1ccec2

Parents:

8377317

git-author:

Xi Ruoyao <xry111@…> (08/18/2024 01:03:47 PM)

git-committer:

Xi Ruoyao <xry111@…> (08/19/2024 05:56:08 AM)

Message:

gcc-pass2: Fix description of LDFLAGS_FOR_TARGET=

Pass 2 libstdc++ still links to libgcc.a even with LDFLAGS_FOR_TARGET=,
despite this libgcc.a is from pass 2 instead of pass 1.

The difference between pass 2 libgcc and pass 1 libgcc is Glibc wasn't
installed when the pass 1 libgcc was built. This difference causes both
consequences (1) pass 1 libgcc lacks shared library and (2) pass 1
libgcc cannot support C++ EH, but it's not (1) causing (2).

File:

• chapter06/gcc-pass2.xml (modified) (1 diff)

chapter06/gcc-pass2.xml

@@ -139 +139 @@
         <listitem>
           <para>Allow <filename class="libraryfile">libstdc++</filename> to
-          use the shared <filename class="libraryfile">libgcc</filename> being
-          built in this pass, instead of the static version that was built in GCC
-          pass 1. This is necessary to support C++ exception
-          handling.</para>
+          use the <filename class="libraryfile">libgcc</filename> being
+          built in this pass, instead of the previous version built in
+          <xref linkend='ch-tools-gcc-pass1'/>.  The previous version cannot
+          properly support C++ exception handling because it was built
+          without libc support.</para>
         </listitem>
       </varlistentry>