[lfs] branch trunk updated: Revert "Change stripping to use --strip-debug"

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     new 2021aa2c3 Revert "Change stripping to use --strip-debug"
2021aa2c3 is described below

commit 2021aa2c3b387bcd7c15aa8326d2df1ad5fca30c
Author: Xi Ruoyao <[email protected]>
AuthorDate: Fri Mar 6 10:08:20 2026 +0800

    Revert "Change stripping to use --strip-debug"
    
    This reverts commit 3d1e81b5a8397464f2ef0f54fb22b810c03c24c2.
    
    We switched from --strip-unneeded to --strip-debug some time ago after
    we found the former "broke" libc.a, causing all rust programs linked
    against it to crash.  In Aug 2025 I reported it as a binutils issue but
    finally it turned out to be a bug in libc.a itself.
    
    The bug is fixed in glibc 2.43 but we didn't really have much time
    between glibc 2.43 and LFS 13.0 so I didn't revert our ad-hoc fix for
    13.0.  Revert it now at the early stage of 13.1 and we'll have some
    months to see what will happen.
    
    I've stripped libc.a and run the rustc test suite, no regressions from
    an unstripped libc.a.
    
    Link: https://sourceware.org/bugzilla/show_bug.cgi?id=33300
---
 chapter08/stripping.xml | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

diff --git a/chapter08/stripping.xml b/chapter08/stripping.xml
index 2e8916796..8b3b424c9 100644
--- a/chapter08/stripping.xml
+++ b/chapter08/stripping.xml
@@ -24,17 +24,10 @@
   backup of the LFS system in its current state.</para>
 
   <para>A <command>strip</command> command with the
-  <parameter>--strip-unneeded</parameter> option removes all debug symbols from
-  a binary or library.  It also removes all symbol table entries not normally
+  <parameter>--strip-unneeded</parameter> option removes all debug symbols
+  from a binary or library.  It also removes all symbol table entries not
   needed by the linker (for static libraries) or dynamic linker (for
-  dynamically linked binaries and shared libraries). Using
-  <parameter>--strip-debug</parameter> does not remove symbol table entries
-  that may be needed by some applications.  The difference between
-  <literal>unneeded</literal> and <literal>debug</literal> is very small.
-  For example, an unstripped <filename class='libraryfile'>libc.a</filename>
-  is 22.4 MB. After stripping with <parameter>--strip-debug</parameter> it
-  is 5.9 MB. Using <parameter>--strip-unneeded</parameter> only reduces the
-  size further to 5.8 MB.</para>
+  dynamically linked binaries and shared libraries).</para>
 
   <para>The debugging symbols from selected libraries are compressed with
   <application>Zstd</application> and preserved in separate files.  That
@@ -87,7 +80,7 @@ cd /usr/lib
 for LIB in $save_usrlib; do
     objcopy --only-keep-debug --compress-debug-sections=zstd $LIB $LIB.dbg
     cp $LIB /tmp/$LIB
-    strip --strip-debug /tmp/$LIB
+    strip --strip-unneeded /tmp/$LIB
     objcopy --add-gnu-debuglink=$LIB.dbg /tmp/$LIB
     install -vm755 /tmp/$LIB /usr/lib
     rm /tmp/$LIB
@@ -106,14 +99,14 @@ online_usrlib="libbfd-&binutils-version;.20260210.so
 
 for BIN in $online_usrbin; do
     cp /usr/bin/$BIN /tmp/$BIN
-    strip --strip-debug /tmp/$BIN
+    strip --strip-unneeded /tmp/$BIN
     install -vm755 /tmp/$BIN /usr/bin
     rm /tmp/$BIN
 done
 
 for LIB in $online_usrlib; do
     cp /usr/lib/$LIB /tmp/$LIB
-    strip --strip-debug /tmp/$LIB
+    strip --strip-unneeded /tmp/$LIB
     install -vm755 /tmp/$LIB /usr/lib
     rm /tmp/$LIB
 done
@@ -124,7 +117,7 @@ for i in $(find /usr/lib -type f -name \*.so* ! -name \*dbg) \
     case "$online_usrbin $online_usrlib $save_usrlib" in
         *$(basename $i)* )
             ;;
-        * ) strip --strip-debug $i
+        * ) strip --strip-unneeded $i
             ;;
     esac
 done

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