diff --git a/porting/liteos_m/kernel/include/bits/alltypes.h b/porting/liteos_m/kernel/include/bits/alltypes.h
index 2d10e80a2ede94b3b96f178a08ec521a440c175b..723ae6850876fd60f5841eedfae1d9c65313deed 100644
--- a/porting/liteos_m/kernel/include/bits/alltypes.h
+++ b/porting/liteos_m/kernel/include/bits/alltypes.h
@@ -550,7 +550,7 @@ typedef struct {
 #endif
 
 #if defined(__NEED_pthread_mutex_t) && !defined(__DEFINED_pthread_mutex_t)
-typedef struct { unsigned int magic; unsigned int handle; } pthread_mutex_t;
+typedef struct { unsigned int magic; unsigned int handle; pthread_mutexattr_t stAttr;} pthread_mutex_t;
 #define __DEFINED_pthread_mutex_t
 #endif
 
diff --git a/porting/liteos_m/kernel/include/pthread.h b/porting/liteos_m/kernel/include/pthread.h
index 8291cdef282776b05a0fefb8a374c471f0733325..a951f63f64dee411cf4c8cce8d1a56cc28b9716b 100644
--- a/porting/liteos_m/kernel/include/pthread.h
+++ b/porting/liteos_m/kernel/include/pthread.h
@@ -57,9 +57,10 @@ extern "C" {
 #define _MUX_MAGIC 0xEBCFDEA0
 #define _MUX_INVALID_HANDLE 0xEEEEEEEF
 
-#define PTHREAD_MUTEX_INITIALIZER  { _MUX_MAGIC, _MUX_INVALID_HANDLE }
+#define PTHREAD_MUTEXATTR_INITIALIZER { PTHREAD_MUTEX_RECURSIVE }
+#define PTHREAD_MUTEX_INITIALIZER  { _MUX_MAGIC, _MUX_INVALID_HANDLE, PTHREAD_MUTEXATTR_INITIALIZER }
 #ifdef _GNU_SOURCE
-#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP { _MUX_MAGIC, _MUX_INVALID_HANDLE }
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP { _MUX_MAGIC, _MUX_INVALID_HANDLE, PTHREAD_MUTEXATTR_INITIALIZER }
 #endif
 #define PTHREAD_RWLOCK_INITIALIZER {{{0}}}
 #define PTHREAD_COND_INITIALIZER {{{0}}}
@@ -90,9 +91,6 @@ __attribute__((const))
 pthread_t pthread_self(void);
 
 int pthread_equal(pthread_t, pthread_t);
-#ifndef __cplusplus
-#define pthread_equal(x,y) ((x)==(y))
-#endif
 
 int pthread_setcancelstate(int, int *);
 int pthread_setcanceltype(int, int *);