diff --git a/add-sw_64-support.patch b/add-sw_64-support.patch
new file mode 100644
index 0000000000000000000000000000000000000000..851cef1031fb818c213755f861c5833a3a890f33
--- /dev/null
+++ b/add-sw_64-support.patch
@@ -0,0 +1,15 @@
+diff --git a/src/google/protobuf/stubs/platform_macros.h b/src/google/protobuf/stubs/platform_macros.h
+index db691d8..0a5bcef 100644
+--- a/src/google/protobuf/stubs/platform_macros.h
++++ b/src/google/protobuf/stubs/platform_macros.h
+@@ -69,6 +69,9 @@
+ #elif defined(__s390__)
+ #define GOOGLE_PROTOBUF_ARCH_32_BIT 1
+ #define GOOGLE_PROTOBUF_ARCH_S390 1
++#elif defined(__sw_64__)
++#define GOOGLE_PROTOBUF_ARCH_SW_64 1
++#define GOOGLE_PROTOBUF_ARCH_64_BIT 1
+ #else
+ #error Host architecture was not detected as supported by protobuf
+ #endif
+
diff --git a/protobuf2.spec b/protobuf2.spec
index 3af4c08759cf9178e80e4212b6e8b930dd748558..f227e6f6567f8e10d46789424b03fbe32a44f0a1 100644
--- a/protobuf2.spec
+++ b/protobuf2.spec
@@ -6,7 +6,7 @@
 Summary:             Protocol Buffers - Google's data interchange format
 Name:                protobuf2
 Version:             2.5.0
-Release:             6
+Release:             7
 License:             BSD
 Source:              http://protobuf.googlecode.com/files/protobuf-%{version}.tar.bz2
 Source1:             ftdetect-proto.vim
@@ -18,6 +18,7 @@ Patch4:              protobuf-2.5.0-makefile.patch
 Patch5:              0001-protobuf2-add-support-for-loongarch64.patch
 Patch6:              add-riscv64-support.patch
 Patch7:	             0001-fix-build-error-for-loongarch64.patch
+Patch8:	             add-sw_64-support.patch
 URL:                 http://code.google.com/p/protobuf/
 BuildRequires:       automake autoconf libtool pkgconfig zlib-devel emacs emacs-el >= 24.1 maven-plugin-bundle gcc-c++
 %if %{with gtest}
@@ -144,6 +145,9 @@ rm -rf java/src/test
 %ifarch riscv64
 %patch6 -p1
 %endif
+%ifarch sw_64
+%patch8 -p1
+%endif
 
 %build
 iconv -f iso8859-1 -t utf-8 CONTRIBUTORS.txt > CONTRIBUTORS.txt.utf8
@@ -251,6 +255,9 @@ install -p -m 0644 %{SOURCE2} $RPM_BUILD_ROOT%{emacs_startdir}
 %endif
 
 %changelog
+* Mon Aug 04 2025 mahailiang <mahailiang@uniontech.com> - 2.5.0-7
+- add sw_64 support
+
 * Fri May 23 2025 Wenlong Zhang <zhangwenlong@loongson.cn> - 2.5.0-6
 - fix build error on loongarch64