diff --git a/libev-Add-sw64-architecture.patch b/libev-Add-sw64-architecture.patch
new file mode 100644
index 0000000000000000000000000000000000000000..86f769d92692c962126802f7bba25e12f0926043
--- /dev/null
+++ b/libev-Add-sw64-architecture.patch
@@ -0,0 +1,45 @@
+From 80f458d8989742585efbab700555601cbb231cf4 Mon Sep 17 00:00:00 2001
+From: wuzx <wuzx1226@qq.com>
+Date: Fri, 18 Nov 2022 12:40:11 +0800
+Subject: [PATCH] Add sw64 architecture
+
+Add sw64 architecture in file ev.c to support sw64 architecture according to alpha architecture.
+
+Signed-off-by: wuzx <wuzx1226@qq.com>
+---
+ ev.c | 5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+diff --git a/ev.c b/ev.c
+index ec212a1..20fc6a2 100644
+--- a/ev.c
++++ b/ev.c
+@@ -493,7 +493,7 @@
+ 
+ #if EV_USE_IOURING
+ # include <sys/syscall.h>
+-# if !SYS_io_uring_setup && __linux && !__alpha
++# if !SYS_io_uring_setup && __linux && !__alpha && !__sw_64
+ #  define SYS_io_uring_setup     425
+ #  define SYS_io_uring_enter     426
+ #  define SYS_io_uring_wregister 427
+@@ -826,6 +826,8 @@ struct signalfd_siginfo
+       /* GNU/Linux emulates sync on mips1 architectures, so we force its use */
+       /* anybody else who still uses mips1 is supposed to send in their version, with detection code. */
+       #define ECB_MEMORY_FENCE         __asm__ __volatile__ (".set mips2; sync; .set mips0" : : : "memory")
++    #elif defined __sw_64__
++      #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("memb"       : : : "memory")
+     #elif defined __alpha__
+       #define ECB_MEMORY_FENCE         __asm__ __volatile__ ("mb"       : : : "memory")
+     #elif defined __hppa__
+@@ -1550,6 +1552,7 @@ ecb_binary32_to_binary16 (uint32_t x)
+     || defined __s390__ || defined __s390x__ \
+     || defined __mips__ \
+     || defined __alpha__ \
++    || defined __sw_64__ \
+     || defined __hppa__ \
+     || defined __ia64__ \
+     || defined __m68k__ \
+-- 
+2.33.0
+
diff --git a/libev.spec b/libev.spec
index 752a3f50ae2ac16aa90ace8c068ab664381ca123..e71f27d5f063269b6eb77bb717fd34bfb607235a 100644
--- a/libev.spec
+++ b/libev.spec
@@ -3,11 +3,12 @@
 
 Name:             libev
 Version:          4.33
-Release:          3
+Release:          4
 Summary:          A high-performance event loop/event model with lots of features
 License:          BSD or GPLv2+
 URL:              https://github.com/enki/libev
 Source0:          https://fossies.org/linux/misc/libev-%{version}.tar.gz
+Patch1:           libev-Add-sw64-architecture.patch
 
 BuildRequires:    autoconf automake coreutils findutils gcc libtool make tar
 
@@ -76,6 +77,9 @@ rm -rf %{buildroot}%{_libdir}/%{name}.la
 %{_mandir}/man?/*
 
 %changelog
+* Mon Nov 14 2022 wuzx<wuzx1226@qq.com> - 4.33-4
+- Add sw64 architecture
+
 * Fri Jul 30 2021 chenyanpanHW <chenyanpan@huawei.com> - 4.33-3
 - DESC: delete -Sgit from %autosetup, and delete BuildRequires git