diff --git a/libdwarf-20180809.tar.gz b/libdwarf-20180809.tar.gz
deleted file mode 100644
index ca99e7046bef094368467ed3db931bca0319fe47..0000000000000000000000000000000000000000
Binary files a/libdwarf-20180809.tar.gz and /dev/null differ
diff --git a/libdwarf-20210528.tar.gz b/libdwarf-20210528.tar.gz
new file mode 100644
index 0000000000000000000000000000000000000000..163b5d91d85e3d75039a8802f6dd815c3d44fcd0
Binary files /dev/null and b/libdwarf-20210528.tar.gz differ
diff --git a/libdwarf.spec b/libdwarf.spec
index f5d83a8b607871a5a80310e9124bd76bc71b013c..e38517ba38fffafe1e5f1a3ce6e49a022aa2bfe8 100644
--- a/libdwarf.spec
+++ b/libdwarf.spec
@@ -1,11 +1,11 @@
 Name:          libdwarf
-Version:       20180809
-Release:       2
+Version:       20210528
+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
@@ -27,16 +27,12 @@ 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
 
+
 %build
 %configure --enable-shared
 sed -i 's|^hardcode_libdir_flag_spec=.*|hardcode_libdir_flag_spec=""|g' libtool
@@ -47,28 +43,47 @@ sed -i 's|^runpath_var=LD_RUN_PATH|runpath_var=DIE_RPATH_DIE|g' libtool
 %make_install
 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
 %{_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
+* Tue Jul 26 2022 panys<panyanshuang@nati-gba.cn> - 20210528-1
+- upgrade to version 20210528
+
+* Tue Nov 24 2020 SimpleUpdate Robot <tc@openeuler.org> - 20201020-1
+- Upgrade to version 20201020
+
+* Sun 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
-
diff --git a/libdwarf.yaml b/libdwarf.yaml
index 5039f2ec033684dcae45bdddee6ce20d5ee7551c..43e8f5102418fdee97752e1e03ff3bc0dbaace44 100644
--- a/libdwarf.yaml
+++ b/libdwarf.yaml
@@ -1,4 +1,5 @@
-version_control: github
-src_repo: Distrotech/libdwarf
-tag_pattern: ^v
-seperator: .
+git_url: git://git.code.sf.net/p/libdwarf/code
+version_control: git
+src_repo: git://git.code.sf.net/p/libdwarf/code
+tag_prefix: 
+seperator: "."