diff --git a/debug/Makefile b/debug/Makefile
index 5818d751c9..ebc9c4e459 100644
--- a/debug/Makefile
+++ b/debug/Makefile
@@ -1,4 +1,5 @@
 # Copyright (C) 1998-2022 Free Software Foundation, Inc.
+# Copyright The GNU Toolchain Authors.
 # This file is part of the GNU C Library.
 
 # The GNU C Library is free software; you can redistribute it and/or
@@ -110,32 +111,60 @@ CFLAGS-tst-longjmp_chk3.c += -fexceptions -fasynchronous-unwind-tables
 CPPFLAGS-tst-longjmp_chk3.c += -D_FORTIFY_SOURCE=1
 CPPFLAGS-tst-realpath-chk.c += -D_FORTIFY_SOURCE=2
 
+# _FORTIFY_SOURCE tests.
+# Auto-generate tests for _FORTIFY_SOURCE for different levels, compilers and
+# preprocessor conditions based on tst-fortify.c.
+#
+# To add a new test condition, define a cflags-$(cond) make variable to set
+# CFLAGS for the file.
+
+tests-all-chk = tst-fortify
+tests-c-chk =
+tests-cc-chk =
+
+CFLAGS-tst-fortify.c += -Wno-format -Wno-deprecated-declarations -Wno-error
+
+# No additional flags for the default tests.
+define cflags-default
+endef
+
+define cflags-lfs
+CFLAGS-tst-fortify-$(1)-lfs-$(2).$(1) += -D_FILE_OFFSET_BITS=64
+endef
+
 # We know these tests have problems with format strings, this is what
 # we are testing.  Disable that warning.  They are also testing
 # deprecated functions (notably gets) so disable that warning as well.
 # And they also generate warnings from warning attributes, which
 # cannot be disabled via pragmas, so require -Wno-error to be used.
-CFLAGS-tst-chk1.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk2.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk3.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk4.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk5.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk6.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk7.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-chk8.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk1.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk2.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk3.c += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk4.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk5.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-CFLAGS-tst-lfschk6.cc += -Wno-format -Wno-deprecated-declarations -Wno-error
-LDLIBS-tst-chk4 = -lstdc++
-LDLIBS-tst-chk5 = -lstdc++
-LDLIBS-tst-chk6 = -lstdc++
-LDLIBS-tst-chk8 = -lstdc++
-LDLIBS-tst-lfschk4 = -lstdc++
-LDLIBS-tst-lfschk5 = -lstdc++
-LDLIBS-tst-lfschk6 = -lstdc++
+define gen-chk-test
+tests-$(1)-chk += tst-fortify-$(1)-$(2)-$(3)
+CFLAGS-tst-fortify-$(1)-$(2)-$(3).$(1) += -D_FORTIFY_SOURCE=$(3) -Wno-format \
+					  -Wno-deprecated-declarations \
+					  -Wno-error
+$(eval $(call cflags-$(2),$(1),$(3)))
+tst-fortify-$(1)-$(2)-$(3).$(1): tst-fortify.c Makefile
+	( echo "/* Autogenerated from Makefile.  */"; \
+	  echo ""; \
+	  echo "#include \"tst-fortify.c\"" ) > $$@.tmp
+	mv $$@.tmp $$@
+endef
+
+chk-extensions = c cc
+chk-types = default lfs
+chk-levels = 1 2 3
+
+$(foreach e,$(chk-extensions), \
+  $(foreach t,$(chk-types), \
+    $(foreach l,$(chk-levels), \
+      $(eval $(call gen-chk-test,$(e),$(t),$(l))))))
+
+tests-all-chk += $(tests-c-chk) $(tests-cc-chk)
+
+define link-cc
+LDLIBS-$(1) = -lstdc++
+endef
+$(foreach t,$(tests-cc-chk), $(eval $(call link-cc,$(t))))
 
 # backtrace_symbols only works if we link with -rdynamic.  backtrace
 # requires unwind tables on most architectures.
@@ -152,19 +181,25 @@ LDFLAGS-tst-backtrace6 = -rdynamic
 
 CFLAGS-tst-ssp-1.c += -fstack-protector-all
 
-tests = backtrace-tst tst-longjmp_chk tst-chk1 tst-chk2 tst-chk3 \
-	tst-lfschk1 tst-lfschk2 tst-lfschk3 test-strcpy_chk test-stpcpy_chk \
-	tst-chk4 tst-chk5 tst-chk6 tst-chk7 tst-chk8 tst-lfschk4 tst-lfschk5 \
-	tst-lfschk6 tst-longjmp_chk2 tst-backtrace2 tst-backtrace3 \
-	tst-backtrace4 tst-backtrace5 tst-backtrace6 tst-realpath-chk
+tests = backtrace-tst \
+	tst-longjmp_chk \
+	test-strcpy_chk \
+	test-stpcpy_chk \
+	tst-longjmp_chk2 \
+	tst-backtrace2 \
+	tst-backtrace3 \
+	tst-backtrace4 \
+	tst-backtrace5 \
+	tst-backtrace6 \
+	tst-realpath-chk \
+	$(tests-all-chk)
 
 ifeq ($(have-ssp),yes)
 tests += tst-ssp-1
 endif
 
 ifeq (,$(CXX))
-tests-unsupported = tst-chk4 tst-chk5 tst-chk6 tst-chk8 \
-		    tst-lfschk4 tst-lfschk5 tst-lfschk6
+tests-unsupported = $(tests-cc-chk)
 endif
 
 extra-libs = libpcprofile
@@ -185,20 +220,10 @@ ifeq ($(run-built-tests),yes)
 LOCALES := de_DE.UTF-8
 include ../gen-locales.mk
 
-$(objpfx)tst-chk1.out: $(gen-locales)
-$(objpfx)tst-chk2.out: $(gen-locales)
-$(objpfx)tst-chk3.out: $(gen-locales)
-$(objpfx)tst-chk4.out: $(gen-locales)
-$(objpfx)tst-chk5.out: $(gen-locales)
-$(objpfx)tst-chk6.out: $(gen-locales)
-$(objpfx)tst-chk7.out: $(gen-locales)
-$(objpfx)tst-chk8.out: $(gen-locales)
-$(objpfx)tst-lfschk1.out: $(gen-locales)
-$(objpfx)tst-lfschk2.out: $(gen-locales)
-$(objpfx)tst-lfschk3.out: $(gen-locales)
-$(objpfx)tst-lfschk4.out: $(gen-locales)
-$(objpfx)tst-lfschk5.out: $(gen-locales)
-$(objpfx)tst-lfschk6.out: $(gen-locales)
+define chk-gen-locales
+$(objpfx)$(1).out: $(gen-locales)
+endef
+$(foreach t, $(tests-all-chk), $(eval $(call chk-gen-locals,$(t))))
 endif
 
 sLIBdir := $(shell echo $(slibdir) | sed 's,lib\(\|64\)$$,\\\\$$LIB,')
diff --git a/debug/tst-chk2.c b/debug/tst-chk2.c
deleted file mode 100644
index be37ce2d22..0000000000
--- a/debug/tst-chk2.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 1
-#include "tst-chk1.c"
diff --git a/debug/tst-chk3.c b/debug/tst-chk3.c
deleted file mode 100644
index 38b8e4fb36..0000000000
--- a/debug/tst-chk3.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 2
-#include "tst-chk1.c"
diff --git a/debug/tst-chk4.cc b/debug/tst-chk4.cc
deleted file mode 100644
index c82e6aac86..0000000000
--- a/debug/tst-chk4.cc
+++ /dev/null
@@ -1 +0,0 @@
-#include "tst-chk1.c"
diff --git a/debug/tst-chk5.cc b/debug/tst-chk5.cc
deleted file mode 100644
index be37ce2d22..0000000000
--- a/debug/tst-chk5.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 1
-#include "tst-chk1.c"
diff --git a/debug/tst-chk6.cc b/debug/tst-chk6.cc
deleted file mode 100644
index 38b8e4fb36..0000000000
--- a/debug/tst-chk6.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 2
-#include "tst-chk1.c"
diff --git a/debug/tst-chk7.c b/debug/tst-chk7.c
deleted file mode 100644
index 2a7b323812..0000000000
--- a/debug/tst-chk7.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 3
-#include "tst-chk1.c"
diff --git a/debug/tst-chk8.cc b/debug/tst-chk8.cc
deleted file mode 100644
index 2a7b323812..0000000000
--- a/debug/tst-chk8.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FORTIFY_SOURCE 3
-#include "tst-chk1.c"
diff --git a/debug/tst-fortify-c-default-1.c b/debug/tst-fortify-c-default-1.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-default-1.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-c-default-2.c b/debug/tst-fortify-c-default-2.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-default-2.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-c-default-3.c b/debug/tst-fortify-c-default-3.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-default-3.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-c-lfs-1.c b/debug/tst-fortify-c-lfs-1.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-lfs-1.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-c-lfs-2.c b/debug/tst-fortify-c-lfs-2.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-lfs-2.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-c-lfs-3.c b/debug/tst-fortify-c-lfs-3.c
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-c-lfs-3.c
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-default-1.cc b/debug/tst-fortify-cc-default-1.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-default-1.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-default-2.cc b/debug/tst-fortify-cc-default-2.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-default-2.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-default-3.cc b/debug/tst-fortify-cc-default-3.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-default-3.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-lfs-1.cc b/debug/tst-fortify-cc-lfs-1.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-lfs-1.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-lfs-2.cc b/debug/tst-fortify-cc-lfs-2.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-lfs-2.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-fortify-cc-lfs-3.cc b/debug/tst-fortify-cc-lfs-3.cc
new file mode 100644
index 0000000000..08a5a758bb
--- /dev/null
+++ b/debug/tst-fortify-cc-lfs-3.cc
@@ -0,0 +1,3 @@
+/* Autogenerated from Makefile.  */
+
+#include "tst-fortify.c"
diff --git a/debug/tst-chk1.c b/debug/tst-fortify.c
similarity index 100%
rename from debug/tst-chk1.c
rename to debug/tst-fortify.c
diff --git a/debug/tst-lfschk1.c b/debug/tst-lfschk1.c
deleted file mode 100644
index f3e6d47d5e..0000000000
--- a/debug/tst-lfschk1.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk1.c"
diff --git a/debug/tst-lfschk2.c b/debug/tst-lfschk2.c
deleted file mode 100644
index 95d4db1d32..0000000000
--- a/debug/tst-lfschk2.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk2.c"
diff --git a/debug/tst-lfschk3.c b/debug/tst-lfschk3.c
deleted file mode 100644
index 50a1ae1258..0000000000
--- a/debug/tst-lfschk3.c
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk3.c"
diff --git a/debug/tst-lfschk4.cc b/debug/tst-lfschk4.cc
deleted file mode 100644
index f3e6d47d5e..0000000000
--- a/debug/tst-lfschk4.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk1.c"
diff --git a/debug/tst-lfschk5.cc b/debug/tst-lfschk5.cc
deleted file mode 100644
index 95d4db1d32..0000000000
--- a/debug/tst-lfschk5.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk2.c"
diff --git a/debug/tst-lfschk6.cc b/debug/tst-lfschk6.cc
deleted file mode 100644
index 50a1ae1258..0000000000
--- a/debug/tst-lfschk6.cc
+++ /dev/null
@@ -1,2 +0,0 @@
-#define _FILE_OFFSET_BITS 64
-#include "tst-chk3.c"
