VxWorks Update

1. Remove pthreads enable from VxWorks build.
2. Add mutex wrappers for native VxWorks mutex semaphores.

wolfcrypt/src/wc_port.c

@@ -753,6 +753,47 @@ int wolfSSL_CryptHwMutexUnLock(void) {
             return BAD_MUTEX_E;
     }
 
+#elif defined(WOLFSSL_VXWORKS)
+
+    int wc_InitMutex(wolfSSL_Mutex* m)
+    {
+        if (m) {
+            if ((*m = semMCreate(0)) != SEM_ID_NULL)
+                return 0;
+        }
+        return BAD_MUTEX_E;
+    }
+
+
+    int wc_FreeMutex(wolfSSL_Mutex* m)
+    {
+        if (m) {
+            if (semDelete(*m) == OK)
+                return 0;
+        }
+        return BAD_MUTEX_E;
+    }
+
+
+    int wc_LockMutex(wolfSSL_Mutex* m)
+    {
+        if (m) {
+            if (semTake(*m, WAIT_FOREVER) == OK)
+                return 0;
+        }
+        return BAD_MUTEX_E;
+    }
+
+
+    int wc_UnLockMutex(wolfSSL_Mutex* m)
+    {
+        if (m) {
+            if (semGive(*m) == OK)
+                return 0;
+        }
+        return BAD_MUTEX_E;
+    }
+
 #elif defined(THREADX)
 
     int wc_InitMutex(wolfSSL_Mutex* m)

wolfssl/wolfcrypt/settings.h

@@ -398,7 +398,6 @@
     #ifdef VXWORKS_SIM
         #define TFM_NO_ASM
     #endif
-    #define WOLFSSL_PTHREADS
     #define WOLFSSL_HAVE_MIN
     #define WOLFSSL_HAVE_MAX
     #define USE_FAST_MATH

wolfssl/wolfcrypt/wc_port.h

@@ -74,6 +74,8 @@
     /* do nothing */
 #elif defined(FREESCALE_FREE_RTOS)
     #include "fsl_os_abstraction.h"
+#elif defined(WOLFSSL_VXWORKS)
+    #include <semLib.h>
 #elif defined(WOLFSSL_uITRON4)
     #include "stddef.h"
     #include "kernel.h"
@@ -151,6 +153,8 @@
         typedef MUTEX_STRUCT wolfSSL_Mutex;
     #elif defined(FREESCALE_FREE_RTOS)
         typedef mutex_t wolfSSL_Mutex;
+    #elif defined(WOLFSSL_VXWORKS)
+        typedef SEM_ID wolfSSL_Mutex;
     #elif defined(WOLFSSL_uITRON4)
         typedef struct wolfSSL_Mutex {
             T_CSEM sem ;