diff --git a/libgcc/ChangeLog b/libgcc/ChangeLog
index e5f44b346aa..7e7c90b7388 100644
--- a/libgcc/ChangeLog
+++ b/libgcc/ChangeLog
@@ -1,3 +1,9 @@
+2018-04-27  Alan Modra  <amodra@gmail.com>
+
+	PR libgcc/85532
+	* config/rs6000/t-crtstuff (CRTSTUFF_T_CFLAGS): Add
+	-fno-asynchronous-unwind-tables.
+
 2018-04-25  Chung-Ju Wu  <jasonwucj@gmail.com>
 
 	* config/nds32/sfp-machine.h: Fix settings for NDS32_ABI_2FP_PLUS.
diff --git a/libgcc/config/rs6000/t-crtstuff b/libgcc/config/rs6000/t-crtstuff
index 0b2601b05bd..d5ff95965f3 100644
--- a/libgcc/config/rs6000/t-crtstuff
+++ b/libgcc/config/rs6000/t-crtstuff
@@ -3,4 +3,4 @@
 # Do not build crtend.o with -Os as that can result in references to
 # out-of-line register save/restore functions, which may be unresolved
 # as crtend.o is linked after libgcc.a.  See PR45053.
-CRTSTUFF_T_CFLAGS = -msdata=none -O2
+CRTSTUFF_T_CFLAGS = -msdata=none -O2 -fno-asynchronous-unwind-tables