update to glibc-2.28-225.el8

Signed-off-by: anolis-bot <sam.zyc@alibaba-inc.com>

wrap-find-debuginfo.sh

@@ -17,6 +17,8 @@
 set -evx
 
 tar_tmp="$(mktemp)"
+declare -A libc_dlink_tmp_list
+ldso_annobin_sym_tmp_list=""
 
 # Prefer a separately installed debugedit over the RPM-integrated one.
 if command -v debugedit >/dev/null ; then
@@ -26,7 +28,7 @@ else
 fi
 
 cleanup () {
-    rm -f "$tar_tmp"
+    rm -f "$tar_tmp" ${libc_dlink_tmp_list[@]} $ldso_annobin_sym_tmp_list
 }
 trap cleanup 0
 
@@ -51,6 +53,15 @@ full_list="$ldso_list $libc_list $libdl_list $libpthread_list $librt_list"
 # Run the debuginfo extraction.
 "$script_path" "$@"
 
+# libc.so.6: Extract the .gnu_debuglink section
+for f in $libc_list
+do
+  dlink_tmp="$(mktemp)"
+  libc_dlink_tmp_list["$f"]="$dlink_tmp"
+  objcopy -j.gnu_debuglink --set-section-flags .gnu_debuglink=alloc \
+      -O binary "$sysroot_path/$f" "$dlink_tmp"
+done
+
 # Restore the original files.
 (cd "$sysroot_path"; tar xf "$tar_tmp")
 (cd "$sysroot_path"; ls -l $full_list)
@@ -61,6 +72,20 @@ do
     objcopy --merge-notes "$sysroot_path/$p"
 done
 
+# libc.so.6: Restore the .gnu_debuglink section
+for f in ${!libc_dlink_tmp_list[@]}
+do
+  dlink_tmp="${libc_dlink_tmp_list[$f]}"
+  objcopy --add-section .gnu_debuglink="$dlink_tmp" "$sysroot_path/$f"
+done
+
+# ld.so does not have separated debuginfo and so the debuginfo file
+# generated by find-debuginfo is redundant.  Therefore, remove it.
+for ldso_debug in `find "$sysroot_path" -name 'ld-*.so*.debug' -type f`
+do
+  rm -f "$ldso_debug"
+done
+
 # libc.so.6 and other shared objects: Reduce to valuable symbols.
 # Eliminate file symbols, annobin symbols, and symbols used by the
 # glibc build to implement hidden aliases (__EI_*).  We would also
@@ -103,6 +128,14 @@ debug_base_name=${last_arg:-$RPM_BUILD_ROOT}
 for p in $ldso_list
 do
     $debugedit -b "$debug_base_name" -d "$debug_dest_name" -n "$sysroot_path/$p"
+
+    # Remove the .annobin* symbols (and only them).
+    ldso_annobin_sym_tmp="$(mktemp)"
+    ldso_annobin_sym_tmp_list+=" $ldso_annobin_sym_tmp"
+    if nm --format=posix "$sysroot_path/$p" | cut -d' ' -f1 \
+        | grep '^\.annobin' > "$ldso_annobin_sym_tmp"; then
+        objcopy --strip-symbols="$ldso_annobin_sym_tmp" "$sysroot_path/$p"
+    fi
 done
 
 # Apply single-file DWARF optimization.