diff --git a/acpica-tools.spec b/acpica-tools.spec
index ca2a618..651e066 100644
--- a/acpica-tools.spec
+++ b/acpica-tools.spec
@@ -1,6 +1,6 @@
 Name:           acpica-tools
-Version:        20190509
-Release:        4
+Version:        20200528
+Release:        1
 Summary:        Tools for OS-independent reference implementation of ACPI
 
 License:        GPLv2
@@ -85,5 +85,8 @@ fi
 %{_docdir}/*
 
 %changelog
+* Wed Jul 22 2020 jinzhimin <jinzhimin2@huawei.com> - 20200528-1
+- update to 20200528
+
 * Tue Dec 31 2019 daiqianwen <daiqianwen@huawei.com> - 20190509-4
 - Package init
diff --git a/acpica-unix2-20190509.tar.gz b/acpica-unix2-20190509.tar.gz
deleted file mode 100644
index de20d85..0000000
Binary files a/acpica-unix2-20190509.tar.gz and /dev/null differ
diff --git a/acpica-unix2-20200528.tar.gz b/acpica-unix2-20200528.tar.gz
new file mode 100644
index 0000000..75410ab
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diff --git a/acpitests-unix-20190509.tar.gz b/acpitests-unix-20190509.tar.gz
deleted file mode 100644
index 6f0aa68..0000000
Binary files a/acpitests-unix-20190509.tar.gz and /dev/null differ
diff --git a/acpitests-unix-20200528.tar.gz b/acpitests-unix-20200528.tar.gz
new file mode 100644
index 0000000..6801011
Binary files /dev/null and b/acpitests-unix-20200528.tar.gz differ
diff --git a/openEuler-harden.patch b/openEuler-harden.patch
index dfe970a..bec5fc3 100644
--- a/openEuler-harden.patch
+++ b/openEuler-harden.patch
@@ -1,21 +1,7 @@
-Index: acpica-unix2-20180209/generate/unix/Makefile.config
-===================================================================
---- acpica-unix2-20180209.orig/generate/unix/Makefile.config
-+++ acpica-unix2-20180209/generate/unix/Makefile.config
-@@ -182,6 +182,8 @@ ifneq ($(NOFORTIFY),TRUE)
- OPT_CFLAGS += -D_FORTIFY_SOURCE=2
- endif
- 
-+OPT_CFLAGS += -fPIC -pie
-+
- CFLAGS += \
-     -D$(HOST)\
-     -D_GNU_SOURCE\
-Index: acpica-unix2-20180209/generate/unix/iasl/Makefile
-===================================================================
---- acpica-unix2-20180209.orig/generate/unix/iasl/Makefile
-+++ acpica-unix2-20180209/generate/unix/iasl/Makefile
-@@ -344,26 +344,27 @@ $(OBJDIR)/prparserparse.c $(OBJDIR)/prpa
+diff -Naur a/generate/unix/iasl/Makefile b/generate/unix/iasl/Makefile
+--- a/generate/unix/iasl/Makefile	2020-07-23 06:45:14.064000000 +0000
++++ b/generate/unix/iasl/Makefile	2020-07-23 06:57:32.080000000 +0000
+@@ -358,34 +358,35 @@
  # Cannot use the common compile warning flags since the C files are created
  # by the utilities above and they are not necessarily ANSI C, etc.
  #
@@ -28,6 +14,16 @@ Index: acpica-unix2-20180209/generate/unix/iasl/Makefile
  $(OBJDIR)/aslcompilerparse.o : $(OBJDIR)/aslcompilerparse.c
  	@echo "- " "Intermediate" $<
 -	@$(CC) -c $(CFLAGS) -Wall -Werror -o$@ $<
++	@$(CC) -c $(CFLAGS) $(HARDENING_FLAGS) -Wall -Werror -o$@ $<
+ 
+ $(OBJDIR)/dtcompilerparserlex.o :      $(OBJDIR)/dtcompilerparserlex.c
+ 	@echo "- " "Intermediate" $<
+-	@$(CC) -c $(CFLAGS) -Wall -Werror -o$@ $<
++	@$(CC) -c $(CFLAGS) $(HARDENING_FLAGS) -Wall -Werror -o$@ $<
+ 
+ $(OBJDIR)/dtcompilerparserparse.o :    $(OBJDIR)/dtcompilerparserparse.c
+ 	@echo "- " "Intermediate" $<
+-	@$(CC) -c $(CFLAGS) -Wall -Werror -o$@ $<
 +	@$(CC) -c $(CFLAGS) $(HARDENING_FLAGS) -Wall -Werror -o$@ $<
  
  $(OBJDIR)/dtparserlex.o :      $(OBJDIR)/dtparserlex.c
@@ -49,3 +45,15 @@ Index: acpica-unix2-20180209/generate/unix/iasl/Makefile
  	@echo "- " "Intermediate" $<
 -	@$(CC) -c $(CFLAGS) -Wall -Werror -o$@ $<
 +	@$(CC) -c $(CFLAGS) $(HARDENING_FLAGS) -Wall -Werror -o$@ $<
+diff -Naur a/generate/unix/Makefile.config b/generate/unix/Makefile.config
+--- a/generate/unix/Makefile.config	2020-07-23 06:45:14.065000000 +0000
++++ b/generate/unix/Makefile.config	2020-07-23 06:47:00.436000000 +0000
+@@ -181,6 +181,8 @@
+ OPT_CFLAGS += -D_FORTIFY_SOURCE=2
+ endif
+ 
++OPT_CFLAGS += -fPIC -pie
++
+ CFLAGS += \
+     -D$(ACPI_HOST)\
+     -D_GNU_SOURCE\