diff --git a/kal/libc/newlib/BUILD.gn b/kal/libc/newlib/BUILD.gn
index 008c9793..7fa682d0 100644
--- a/kal/libc/newlib/BUILD.gn
+++ b/kal/libc/newlib/BUILD.gn
@@ -36,6 +36,7 @@ kernel_module(module_name) {
     "porting/src/fs.c",
     "porting/src/malloc.c",
     "porting/src/other_adapt.c",
+    "porting/src/pthread.c",
     "porting/src/time.c",
   ]
 
diff --git a/kal/libc/newlib/porting/src/pthread.c b/kal/libc/newlib/porting/src/pthread.c
new file mode 100644
index 00000000..ed3d4ce7
--- /dev/null
+++ b/kal/libc/newlib/porting/src/pthread.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2022-2022 Huawei Device Co., Ltd. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this list of
+ *    conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice, this list
+ *    of conditions and the following disclaimer in the documentation and/or other materials
+ *    provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors may be used
+ *    to endorse or promote products derived from this software without specific prior written
+ *    permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <pthread.h>
+
+int pthread_equal(pthread_t __t1, pthread_t __t2)
+{
+    return (int)(__t1 == __t2);
+}