This patch is pending upstream review here:

<https://sourceware.org/pipermail/libc-alpha/2021-November/thread.html>

Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Nov 5 12:20:01 2021 -0700

    elf: Pre-generate Makefile fragment for DSO sorting tests [BZ #28550]

    Generate Makefile fragment for DSO sorting tests at configure time.

    This partially fixes BZ #28550.

diff --git a/configure b/configure
index 2f9adca0641e66cf..91993da3b96bcfa0 100755
--- a/configure
+++ b/configure
@@ -8484,3 +8484,14 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
 $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
 
+
+if test "$have_tunables" = yes; then
+  test -d elf || mkdir elf
+  objdir=`pwd`
+  rm -f elf/dso-sort-tests.mk
+  (for d in dso-sort-tests-1.def dso-sort-tests-2.def
+   do
+    $PYTHON $srcdir/scripts/dso-ordering-test.py \
+	--description-file $srcdir/elf/$d --objpfx $objdir/elf/
+   done) > elf/dso-sort-tests.mk
+fi
diff --git a/configure.ac b/configure.ac
index 7eb42393599235e8..faf70b930c67b50a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1901,3 +1901,15 @@ echo "$config_vars" >> config.make;;
 esac
 test -d bits || mkdir bits]],[[config_vars='$config_vars']])
 AC_OUTPUT
+
+dnl Generate Makefile fragments for DSO sorting tests.
+if test "$have_tunables" = yes; then
+  test -d elf || mkdir elf
+  objdir=`pwd`
+  rm -f elf/dso-sort-tests.mk
+  (for d in dso-sort-tests-1.def dso-sort-tests-2.def
+   do
+    $PYTHON $srcdir/scripts/dso-ordering-test.py \
+	--description-file $srcdir/elf/$d --objpfx $objdir/elf/
+   done) > elf/dso-sort-tests.mk
+fi
diff --git a/elf/Makefile b/elf/Makefile
index 525f302d1adbe142..e3c6ac720732a8fa 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -491,29 +491,13 @@ tests-special += $(objpfx)order-cmp.out $(objpfx)tst-array1-cmp.out \
 		 $(objpfx)tst-unused-dep-cmp.out
 endif
 
-ifndef avoid-generated
-# DSO sorting tests:
-# The dso-ordering-test.py script generates testcase source files in $(objpfx),
-# creating a $(objpfx)<testcase-name>-dir for each testcase, and creates a
-# Makefile fragment to be included.
-define include_dsosort_tests
-$(objpfx)$(1).generated-makefile: $(1)
-	$(PYTHON) $(..)scripts/dso-ordering-test.py \
-	--description-file $$< --objpfx $(objpfx) --output-makefile $$@T
-	mv $$@T $$@
--include $(objpfx)$(1).generated-makefile
-endef
-endif
-
-postclean-generated += $(objpfx)/dso-sort-tests-2.generated-makefile \
-		       $(objpfx)/dso-sort-tests-2.generated-makefile
-
-# Generate from each testcase description file
 ifeq (yes,$(have-tunables))
-$(eval $(call include_dsosort_tests,dso-sort-tests-1.def))
-$(eval $(call include_dsosort_tests,dso-sort-tests-2.def))
+# Include Makefile fragments for DSO sorting tests.
+include $(objpfx)dso-sort-tests.mk
 endif
 
+postclean-generated += $(objpfx)/dso-sort-tests.mk
+
 check-abi: $(objpfx)check-abi-ld.out
 tests-special += $(objpfx)check-abi-ld.out
 update-abi: update-abi-ld