diff --git a/libdwarf-20180809.tar.gz b/libdwarf-20180809.tar.gz
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diff --git a/libdwarf-20200114.tar.gz b/libdwarf-20200114.tar.gz
new file mode 100644
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diff --git a/libdwarf.spec b/libdwarf.spec
index f5d83a8b607871a5a80310e9124bd76bc71b013c..d679d5022d362227934bcedf11649f00dae5f9d9 100644
--- a/libdwarf.spec
+++ b/libdwarf.spec
@@ -1,11 +1,11 @@
 Name:          libdwarf
-Version:       20180809
-Release:       2
+Version:       20200114
+Release:       1
 Summary:       Library to access DWARF debugging information
 License:       LGPLv2
 URL:           http://www.prevanders.net/dwarf.html
 Source0:       http://www.prevanders.net/%{name}-%{version}.tar.gz
-BuildRequires: gcc binutils-devel elfutils-libelf-devel
+BuildRequires: gcc binutils-devel elfutils-libelf-devel dos2unix
 
 %description
 Libdwarf is a library of functions to provide read/write DWARF
@@ -27,12 +27,7 @@ Requires:      %{name} = %{version}-%{release}
 %description tools
 Libdwarf-tools contains dwarfdump, a tool to access DWARF debug information.
 
-%package help
-Summary:       Help documents for libdwarf
-Requires:      %{name} = %{version}-%{release}
-
-%description help
-Libdwarf-help provides man pages and other related help documents for libdwarf.
+%package_help
 
 %prep
 %autosetup -n %{name}-%{version} -p1
@@ -48,27 +43,40 @@ sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 install -d %{buildroot}%{_includedir}/libdwarf
 mv %{buildroot}%{_includedir}/*.h %{buildroot}%{_includedir}/libdwarf
 
+%delete_la
+
+%check
+LD_LIBRARY_PATH=$PWD/libdwarf/.libs %__make check
+
 %files
+%defattr(-,root,root)
 %license libdwarf/{COPYING,LIBDWARFCOPYRIGHT,LGPL.txt}
 %{_libdir}/libdwarf.so.*
 %exclude %{_datadir}/libdwarf
 
 %files devel
+%defattr(-,root,root)
 %{_includedir}/libdwarf
 %{_libdir}/{libdwarf.so,libdwarf.a}
-%exclude %{_libdir}/*.la
 
 %files tools
+%defattr(-,root,root)
 %doc dwarfdump/{README,ChangeLog}
 %license dwarfdump/{COPYING,DWARFDUMPCOPYRIGHT,GPL.txt}
 %{_bindir}/dwarfdump
 %{_datadir}/dwarfdump/dwarfdump.conf
 
 %files help
+%defattr(-,root,root)
 %doc libdwarf/{ChangeLog,README,*.pdf}
 %{_mandir}/man1/dwarfdump.1.gz
 
 %changelog
+* Fri Jun 21 2020 hanhui<hanhui15@huawei.com> - 20200114
+- Mainline branch update to 20200114
+
+* Tue Apr 21 2020 songnannan <songnannan2@huawei.com> - 20200114
+- update to 20200114
+
 * Tue Nov 05 2019 yanzhihua <yanzhihua4@huawei.com> - 20180809-2
 - Package init
-