initfini.c is compiled to assembly and further processed and split,
we can't have unwind tables therein.

Index: csu/Makefile
===================================================================
--- csu/Makefile.orig
+++ csu/Makefile
@@ -93,7 +93,7 @@ omit-deps += $(crtstuff)
 $(crtstuff:%=$(objpfx)%.o): %.o: %.S $(objpfx)defs.h
 	$(compile.S) -g0 $(ASFLAGS-.os) -o $@
 
-CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
+CFLAGS-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time) -fno-unwind-tables -fno-asynchronous-unwind-tables
 
 vpath initfini.c $(sysdirs)
 
Index: nptl/Makefile
===================================================================
--- nptl/Makefile.orig
+++ nptl/Makefile
@@ -339,7 +339,7 @@ endif
 extra-objs += $(crti-objs) $(crtn-objs)
 omit-deps += crti crtn
 
-CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time)
+CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions $(fno-unit-at-a-time) -fno-unwind-tables -fno-asynchronous-unwind-tables
 endif
 
 CFLAGS-flockfile.c = -D_IO_MTSAFE_IO
Index: nptl/sysdeps/unix/sysv/linux/x86_64/Makefile
===================================================================
--- nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.orig
+++ nptl/sysdeps/unix/sysv/linux/x86_64/Makefile
@@ -1,4 +1,4 @@
 ifeq ($(subdir),nptl)
 CFLAGS-pt-initfini.s = -g0 -fPIC -fno-inline-functions \
-		       -fno-asynchronous-unwind-tables $(fno-unit-at-a-time)
+		       -fno-unwind-tables -fno-asynchronous-unwind-tables $(fno-unit-at-a-time)
 endif