Resolve the issue of low version glibc and gcc compilation not being able to be resolved due to the definition of __USE_GNU (#1077)

Author: maxiao

portable/ThirdParty/GCC/Posix/port.c

@@ -51,9 +51,6 @@
 *----------------------------------------------------------*/
 #include "portmacro.h"
 
-#ifdef __linux__
-    #define __USE_GNU
-#endif
 
 #include <errno.h>
 #include <pthread.h>
@@ -64,6 +61,7 @@
 #include <string.h>
 #include <sys/time.h>
 #include <sys/times.h>
+#include <sys/prctl.h>
 #include <time.h>
 #include <unistd.h>
 
@@ -141,7 +139,7 @@ static void prvPortSetCurrentThreadName(char * pxThreadName)
 #ifdef __APPLE__
     pthread_setname_np(pxThreadName);
 #else
-    pthread_setname_np(pthread_self(), pxThreadName);
+    prctl( PR_SET_NAME, pxThreadName );
 #endif
 }
 /*-----------------------------------------------------------*/