fix(posix): posix兼容回退

posix兼容回退
Signed-off-by: NLiteOS2021 <dinglu@huawei.com>

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_mutexattr_t stAttr;} pthread_mutex_t;
+typedef struct { unsigned int magic; unsigned int handle; } pthread_mutex_t;
 #define __DEFINED_pthread_mutex_t
 #endif
 

porting/liteos_m/kernel/include/pthread.h

@@ -57,10 +57,9 @@ extern "C" {
 #define _MUX_MAGIC 0xEBCFDEA0
 #define _MUX_INVALID_HANDLE 0xEEEEEEEF
 
-#define PTHREAD_MUTEXATTR_INITIALIZER { PTHREAD_MUTEX_DEFAULT }
-#define PTHREAD_MUTEX_INITIALIZER  { _MUX_MAGIC, _MUX_INVALID_HANDLE, PTHREAD_MUTEXATTR_INITIALIZER }
+#define PTHREAD_MUTEX_INITIALIZER  { _MUX_MAGIC, _MUX_INVALID_HANDLE }
 #ifdef _GNU_SOURCE
-#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP { _MUX_MAGIC, _MUX_INVALID_HANDLE, PTHREAD_MUTEXATTR_INITIALIZER }
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP { _MUX_MAGIC, _MUX_INVALID_HANDLE }
 #endif
 #define PTHREAD_RWLOCK_INITIALIZER {{{0}}}
 #define PTHREAD_COND_INITIALIZER {{{0}}}
@@ -91,6 +90,9 @@ __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 *);