diff --git a/components/lwip/api/api_lib.c b/components/lwip/api/api_lib.c
index c38c76081..ecebf4f81 100755
--- a/components/lwip/api/api_lib.c
+++ b/components/lwip/api/api_lib.c
@@ -55,11 +55,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 #define API_MSG_VAR_REF(name)             API_VAR_REF(name)
 #define API_MSG_VAR_DECLARE(name)         API_VAR_DECLARE(struct api_msg, name)
 #define API_MSG_VAR_ALLOC(name)           API_VAR_ALLOC(struct api_msg, MEMP_API_MSG, name)
@@ -178,8 +173,8 @@ netconn_delete(struct netconn *conn)
     return err;
   }
 
-#if !LWIP_THREAD_SAFE
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("netconn_delete - free conn\n"));
+#if !ESP_THREAD_SAFE
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("netconn_delete - free conn\n"));
   netconn_free(conn);
 #endif
 
@@ -502,7 +497,7 @@ netconn_recv_data(struct netconn *conn, void **new_buf)
 #endif /* LWIP_TCP && (LWIP_UDP || LWIP_RAW) */
 #if (LWIP_UDP || LWIP_RAW)
   {
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
     if (buf == NULL){
       API_EVENT(conn, NETCONN_EVT_RCVMINUS, 0);
       return ERR_CLSD;
@@ -710,17 +705,7 @@ netconn_write_partly(struct netconn *conn, const void *dataptr, size_t size,
   }
   dontblock = netconn_is_nonblocking(conn) || (apiflags & NETCONN_DONTBLOCK);
 
-#ifdef LWIP_ESP8266
-
-#ifdef FOR_XIAOMI
-    if (dontblock && bytes_written) {
-#else
-    if (dontblock && !bytes_written) {
-#endif
-    
-#else
   if (dontblock && !bytes_written) {
-#endif
     /* This implies netconn_write() cannot be used for non-blocking send, since
        it has no way to return the number of bytes written. */
     return ERR_VAL;
diff --git a/components/lwip/api/api_msg.c b/components/lwip/api/api_msg.c
index 9cac2e0e9..d504bfb87 100755
--- a/components/lwip/api/api_msg.c
+++ b/components/lwip/api/api_msg.c
@@ -55,10 +55,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /* netconns are polled once per second (e.g. continue write on memory error) */
 #define NETCONN_TCP_POLL_INTERVAL 2
 
@@ -1216,16 +1212,7 @@ lwip_netconn_do_connect(void *m)
       if (msg->conn->state == NETCONN_CONNECT) {
         msg->err = ERR_ALREADY;
       } else if (msg->conn->state != NETCONN_NONE) {
-
-#ifdef LWIP_ESP8266
-    if( msg->conn->pcb.tcp->state == ESTABLISHED )
         msg->err = ERR_ISCONN;
-    else
-        msg->err = ERR_ALREADY;
-#else
-        msg->err = ERR_ISCONN;
-#endif
-
       } else {
         setup_tcp(msg->conn);
         msg->err = tcp_connect(msg->conn->pcb.tcp, API_EXPR_REF(msg->msg.bc.ipaddr),
@@ -1646,14 +1633,7 @@ lwip_netconn_do_write(void *m)
         if (lwip_netconn_do_writemore(msg->conn, 0) != ERR_OK) {
           LWIP_ASSERT("state!", msg->conn->state == NETCONN_WRITE);
           UNLOCK_TCPIP_CORE();
-
-#ifdef LWIP_ESP8266
-//#if 0
-            sys_arch_sem_wait( LWIP_API_MSG_SND_SEM(msg), 0);
-#else
-            sys_arch_sem_wait(LWIP_API_MSG_SEM(msg), 0);
-#endif
-                
+          sys_arch_sem_wait(LWIP_API_MSG_SEM(msg), 0);
           LOCK_TCPIP_CORE();
           LWIP_ASSERT("state!", msg->conn->state != NETCONN_WRITE);
         }
diff --git a/components/lwip/api/netbuf.c b/components/lwip/api/netbuf.c
index 6c6dc69cc..9ab76a463 100755
--- a/components/lwip/api/netbuf.c
+++ b/components/lwip/api/netbuf.c
@@ -45,11 +45,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /**
  * Create (allocate) and initialize a new netbuf.
  * The netbuf doesn't yet contain a packet buffer!
diff --git a/components/lwip/api/netdb.c b/components/lwip/api/netdb.c
index 8fd3f4186..65510f55e 100755
--- a/components/lwip/api/netdb.c
+++ b/components/lwip/api/netdb.c
@@ -47,11 +47,6 @@
 #include <string.h>
 #include <stdlib.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /** helper struct for gethostbyname_r to access the char* buffer */
 struct gethostbyname_r_helper {
   ip_addr_t *addr_list[2];
diff --git a/components/lwip/api/sockets.c b/components/lwip/api/sockets.c
index 1cc5fbf7b..455d007ea 100755
--- a/components/lwip/api/sockets.c
+++ b/components/lwip/api/sockets.c
@@ -61,11 +61,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /* If the netconn API is not required publicly, then we include the necessary
    files here to get the implementation */
 #if !LWIP_NETCONN
@@ -216,7 +211,7 @@ struct lwip_sock {
   /** last error that occurred on this socket (in fact, all our errnos fit into an u8_t) */
   u8_t err;
 
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
   /* lock is used to protect state/ref field, however this lock is not a perfect lock, e.g
    * taskA and taskB can access sock X, then taskA freed sock X, before taskB detect 
    * this, taskC reuse sock X, then when taskB try to access sock X, problem may happen.
@@ -239,7 +234,7 @@ struct lwip_sock {
   SELWAIT_T select_waiting;
 };
 
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
 
 #define LWIP_SOCK_OPEN    0
 #define LWIP_SOCK_CLOSING 1
@@ -247,25 +242,25 @@ struct lwip_sock {
 
 #define LWIP_SOCK_LOCK(sock) \
 do{\
-  /*LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("l\n"));*/\
+  /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("l\n"));*/\
     sys_mutex_lock(&sock->lock);\
-  /*LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("l ok\n"));*/\
+  /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("l ok\n"));*/\
 }while(0)
 
 
 #define LWIP_SOCK_UNLOCK(sock) \
 do{\
   sys_mutex_unlock(&sock->lock);\
-  /*LWIP_DEBUGF(THREAD_SAFE_DEBUG1, ("unl\n"));*/\
+  /*LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG1, ("unl\n"));*/\
 }while(0)
 
 #define LWIP_FREE_SOCK(sock) \
 do{\
   if(sock->conn && NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP){\
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free tcp sock\n"));\
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free tcp sock\n"));\
     free_socket(sock, 1);\
   } else {\
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free non-tcp sock\n"));\
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_FREE_SOCK:free non-tcp sock\n"));\
     free_socket(sock, 0);\
   }\
 }while(0)
@@ -273,7 +268,7 @@ do{\
 #define LWIP_SET_CLOSE_FLAG() \
 do{\
   LWIP_SOCK_LOCK(__sock);\
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("mark sock closing\n"));\
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("mark sock closing\n"));\
   __sock->state = LWIP_SOCK_CLOSING;\
   LWIP_SOCK_UNLOCK(__sock);\
 }while(0)
@@ -291,7 +286,7 @@ do{\
   LWIP_SOCK_LOCK(__sock);\
   __sock->ref ++;\
   if (__sock->state != LWIP_SOCK_OPEN) {\
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("LWIP_API_LOCK:soc is %d, return\n", __sock->state));\
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_LOCK:soc is %d, return\n", __sock->state));\
     __sock->ref --;\
     LWIP_SOCK_UNLOCK(__sock);\
     return -1;\
@@ -306,12 +301,12 @@ do{\
   __sock->ref --;\
   if (__sock->state == LWIP_SOCK_CLOSING) {\
     if (__sock->ref == 0){\
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK:ref 0, free __sock\n"));\
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK:ref 0, free __sock\n"));\
       LWIP_FREE_SOCK(__sock);\
       LWIP_SOCK_UNLOCK(__sock);\
       return __ret;\
     }\
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK: soc state is closing, return\n"));\
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("LWIP_API_UNLOCK: soc state is closing, return\n"));\
     LWIP_SOCK_UNLOCK(__sock);\
     return __ret;\
   }\
@@ -387,7 +382,7 @@ static void lwip_socket_unregister_membership(int s, const ip4_addr_t *if_addr,
 static void lwip_socket_drop_registered_memberships(int s);
 #endif /* LWIP_IGMP */
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 #include "esp_wifi_internal.h"
 #include "esp_system.h"
 
@@ -414,7 +409,7 @@ static inline void esp32_tx_flow_ctrl(void)
 
 /** The global array of available sockets */
 static struct lwip_sock sockets[NUM_SOCKETS];
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
 static bool sockets_init_flag = false;
 #endif
 /** The global list of tasks waiting for select */
@@ -425,13 +420,7 @@ static volatile int select_cb_ctr;
 
 /** Table to quickly map an lwIP error (err_t) to a socket error
   * by using -err as an index */
-#ifdef LWIP_ESP8266
-//TO_DO
-//static const int err_to_errno_table[] ICACHE_RODATA_ATTR STORE_ATTR = {
 static const int err_to_errno_table[] = {
-#else
-static const int err_to_errno_table[] = {
-#endif
   0,             /* ERR_OK          0      No error, everything OK. */
   ENOMEM,        /* ERR_MEM        -1      Out of memory error.     */
   ENOBUFS,       /* ERR_BUF        -2      Buffer error.            */
@@ -442,7 +431,7 @@ static const int err_to_errno_table[] = {
   EWOULDBLOCK,   /* ERR_WOULDBLOCK -7      Operation would block.   */
   EADDRINUSE,    /* ERR_USE        -8      Address in use.          */
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   EALREADY,      /* ERR_ALREADY    -9      Already connected.       */
   EISCONN,		 /* ERR_ISCONN     -10	   Conn already established */
   ECONNABORTED,  /* ERR_ABRT       -11     Connection aborted.      */
@@ -583,7 +572,7 @@ alloc_socket(struct netconn *newconn, int accepted)
   int i;
   SYS_ARCH_DECL_PROTECT(lev);
 
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
   bool    found        = false;
   int     oldest       = -1;
 
@@ -639,16 +628,16 @@ alloc_socket(struct netconn *newconn, int accepted)
     if (!sockets[oldest].lock){
       /* one time init and never free */
       if (sys_mutex_new(&sockets[oldest].lock) != ERR_OK){
-        LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("new sock lock fail\n"));
+        LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("new sock lock fail\n"));
         return -1;
       }
     }
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("alloc_socket: alloc %d ok\n", oldest));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("alloc_socket: alloc %d ok\n", oldest));
 
     return oldest + LWIP_SOCKET_OFFSET;
   }
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("alloc_socket: failed\n"));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("alloc_socket: failed\n"));
  
 #else
 
@@ -693,12 +682,12 @@ free_socket(struct lwip_sock *sock, int is_tcp)
   void *lastdata;
   SYS_ARCH_DECL_PROTECT(lev);
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("free_sockset:free socket s=%p is_tcp=%d\n", sock, is_tcp));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free socket s=%p is_tcp=%d\n", sock, is_tcp));
   lastdata         = sock->lastdata;
   sock->lastdata   = NULL;
   sock->lastoffset = 0;
   sock->err        = 0;
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
   if (sock->conn){
     netconn_free(sock->conn);
   }
@@ -716,10 +705,10 @@ free_socket(struct lwip_sock *sock, int is_tcp)
 
   if (lastdata != NULL) {
     if (is_tcp) {
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("free_sockset:free lastdata pbuf=%p\n", lastdata));
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free lastdata pbuf=%p\n", lastdata));
       pbuf_free((struct pbuf *)lastdata);
     } else {
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("free_sockset:free lastdata, netbuf=%p\n", lastdata));
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("free_sockset:free lastdata, netbuf=%p\n", lastdata));
       netbuf_delete((struct netbuf *)lastdata);
     }
   }
@@ -872,19 +861,19 @@ lwip_close(int s)
   int is_tcp = 0;
   err_t err;
 
-  LWIP_DEBUGF(SOCKETS_DEBUG|THREAD_SAFE_DEBUG, ("lwip_close: (%d)\n", s));
+  LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: (%d)\n", s));
 
   sock = get_socket(s);
   if (!sock) {
-    LWIP_DEBUGF(SOCKETS_DEBUG|THREAD_SAFE_DEBUG, ("lwip_close: sock is null, return -1\n"));
+    LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: sock is null, return -1\n"));
     return -1;
   }
 
   if (sock->conn != NULL) {
     is_tcp = NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_TCP;
-    LWIP_DEBUGF(SOCKETS_DEBUG|THREAD_SAFE_DEBUG, ("lwip_close: is_tcp=%d\n", is_tcp));
+    LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("lwip_close: is_tcp=%d\n", is_tcp));
   } else {
-    LWIP_DEBUGF(SOCKETS_DEBUG|THREAD_SAFE_DEBUG, ("conn is null\n"));
+    LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("conn is null\n"));
     LWIP_ASSERT("lwip_close: sock->lastdata == NULL", sock->lastdata == NULL);
   }
 
@@ -895,12 +884,12 @@ lwip_close(int s)
 
   err = netconn_delete(sock->conn);
   if (err != ERR_OK) {
-    LWIP_DEBUGF(SOCKETS_DEBUG|THREAD_SAFE_DEBUG, ("netconn_delete fail, ret=%d\n", err));
+    LWIP_DEBUGF(SOCKETS_DEBUG|ESP_THREAD_SAFE_DEBUG, ("netconn_delete fail, ret=%d\n", err));
     sock_set_errno(sock, err_to_errno(err));
     return -1;
   }
 
-#if !LWIP_THREAD_SAFE
+#if !ESP_THREAD_SAFE
   free_socket(sock, is_tcp);
 #endif
 
@@ -1130,22 +1119,13 @@ lwip_recvfrom(int s, void *mem, size_t len, int flags,
         ip_addr_debug_print(SOCKETS_DEBUG, fromaddr);
         LWIP_DEBUGF(SOCKETS_DEBUG, (" port=%"U16_F" len=%d\n", port, off));
 
-#ifdef LWIP_ESP8266        
         if (from && fromlen)
-#else
-
-#if SOCKETS_DEBUG
-        if (from && fromlen)
-#endif /* SOCKETS_DEBUG */
-
-#endif
         {
               if (*fromlen > saddr.sa.sa_len) {
                 *fromlen = saddr.sa.sa_len;
               }
               MEMCPY(from, &saddr, *fromlen);
-          
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
         } else {
         	/*fix the code for setting the UDP PROTO's remote infomation by liuh at 2014.8.27*/
         	if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_UDP){
@@ -1437,7 +1417,7 @@ lwip_sendto(int s, const void *data, size_t size, int flags,
     SOCKADDR_TO_IPADDR_PORT(to, &buf.addr, remote_port);
   } else {
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
         /*fix the code for getting the UDP proto's remote information by liuh at 2014.8.27*/
         if (NETCONNTYPE_GROUP(netconn_type(sock->conn)) == NETCONN_UDP){
             if(NETCONNTYPE_ISIPV6(netconn_type(sock->conn))) {
@@ -1453,7 +1433,7 @@ lwip_sendto(int s, const void *data, size_t size, int flags,
 #endif
             remote_port = 0;
             ip_addr_set_any(NETCONNTYPE_ISIPV6(netconn_type(sock->conn)), &buf.addr);
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
         }
 #endif
         
@@ -1986,7 +1966,7 @@ again:
 int
 lwip_shutdown(int s, int how)
 {
-#ifndef LWIP_ESP8266
+#if ! ESP_LWIP
 
   struct lwip_sock *sock;
   err_t err;
@@ -3126,7 +3106,7 @@ static void lwip_socket_drop_registered_memberships(int s)
 }
 #endif /* LWIP_IGMP */
 
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
 
 int
 lwip_sendto_r(int s, const void *data, size_t size, int flags,
diff --git a/components/lwip/api/tcpip.c b/components/lwip/api/tcpip.c
index 9df3c38a1..0ad60721e 100755
--- a/components/lwip/api/tcpip.c
+++ b/components/lwip/api/tcpip.c
@@ -50,18 +50,13 @@
 #include "lwip/pbuf.h"
 #include "netif/etharp.h"
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 #define TCPIP_MSG_VAR_REF(name)     API_VAR_REF(name)
 #define TCPIP_MSG_VAR_DECLARE(name) API_VAR_DECLARE(struct tcpip_msg, name)
 #define TCPIP_MSG_VAR_ALLOC(name)   API_VAR_ALLOC(struct tcpip_msg, MEMP_TCPIP_MSG_API, name)
 #define TCPIP_MSG_VAR_FREE(name)    API_VAR_FREE(MEMP_TCPIP_MSG_API, name)
 
 /* global variables */
-#ifdef PERF
+#if ESP_PERF
 uint32_t g_rx_post_mbox_fail_cnt = 0;
 #endif
 static tcpip_init_done_fn tcpip_init_done;
@@ -144,13 +139,11 @@ tcpip_thread(void *arg)
     case TCPIP_MSG_INPKT:
       LWIP_DEBUGF(TCPIP_DEBUG, ("tcpip_thread: PACKET %p\n", (void *)msg));
 
-#ifdef LWIP_ESP8266
-//#if 0
+#if ESP_LWIP
         if(msg->msg.inp.p != NULL && msg->msg.inp.netif != NULL) {
 #endif
             msg->msg.inp.input_fn(msg->msg.inp.p, msg->msg.inp.netif);
-#ifdef LWIP_ESP8266
-//#if 0
+#if ESP_LWIP
         }
 #endif
 
@@ -230,7 +223,7 @@ tcpip_inpkt(struct pbuf *p, struct netif *inp, netif_input_fn input_fn)
   msg->msg.inp.netif = inp;
   msg->msg.inp.input_fn = input_fn;
   if (sys_mbox_trypost(&mbox, msg) != ERR_OK) {
-#ifdef PERF
+#if ESP_PERF
     g_rx_post_mbox_fail_cnt ++; 
 #endif
     memp_free(MEMP_TCPIP_MSG_INPKT, msg);
@@ -503,7 +496,7 @@ tcpip_init(tcpip_init_done_fn initfunc, void *arg)
 #endif /* LWIP_TCPIP_CORE_LOCKING */
 
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   sys_thread_t xLwipTaskHandle = sys_thread_new(TCPIP_THREAD_NAME
                 , tcpip_thread, NULL, TCPIP_THREAD_STACKSIZE, TCPIP_THREAD_PRIO);
 
@@ -548,8 +541,7 @@ pbuf_free_callback(struct pbuf *p)
  * @return ERR_OK if callback could be enqueued, an err_t if not
  */
  
-#ifdef LWIP_ESP8266
-//#if 0
+#if ESP_LWIP
 static void mem_free_local(void *arg)
 {
 	mem_free(arg);
diff --git a/components/lwip/apps/dhcpserver.c b/components/lwip/apps/dhcpserver.c
index 4cdef4123..22443e8cd 100644
--- a/components/lwip/apps/dhcpserver.c
+++ b/components/lwip/apps/dhcpserver.c
@@ -24,7 +24,7 @@
 
 #include "apps/dhcpserver.h"
 
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
 
 #define BOOTP_BROADCAST 0x8000
 
@@ -71,10 +71,6 @@
 #define DHCPS_STATE_IDLE 5
 #define DHCPS_STATE_RELEASE 6
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 ////////////////////////////////////////////////////////////////////////////////////
 
 static const u32_t magic_cookie  = 0x63538263;
diff --git a/components/lwip/core/dns.c b/components/lwip/core/dns.c
index da8ac95b8..8f0ac5cc8 100755
--- a/components/lwip/core/dns.c
+++ b/components/lwip/core/dns.c
@@ -85,10 +85,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /** Random generator function to create random TXIDs and source ports for queries */
 #ifndef DNS_RAND_TXID
 #if ((LWIP_DNS_SECURE & LWIP_DNS_SECURE_RAND_XID) != 0)
@@ -1091,7 +1087,7 @@ dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr,
         u8_t dns_err;
         /* This entry is now completed. */
         
-#ifndef LWIP_ESP8266
+#if ! ESP_DNS
         entry->state = DNS_STATE_DONE;
 #endif
         dns_err = hdr.flags2 & DNS_FLAG2_ERR_MASK;
@@ -1105,7 +1101,7 @@ dns_recv(void *arg, struct udp_pcb *pcb, struct pbuf *p, const ip_addr_t *addr,
         if (((hdr.flags1 & DNS_FLAG1_RESPONSE) == 0) || (dns_err != 0) || (nquestions != 1)) {
           LWIP_DEBUGF(DNS_DEBUG, ("dns_recv: \"%s\": error in flags\n", entry->name));
           /* call callback to indicate error, clean up memory and return */
-#ifndef LWIP_ESP8266
+#if ! ESP_DNS
                 goto responseerr;
         }
 #else
diff --git a/components/lwip/core/init.c b/components/lwip/core/init.c
index f974aedaf..774e9a2be 100755
--- a/components/lwip/core/init.c
+++ b/components/lwip/core/init.c
@@ -61,7 +61,7 @@
 #include "lwip/api.h"
 #include "netif/ppp/ppp_impl.h"
 
-#ifndef PERF
+#if ! ESP_PERF
 /* Compile-time sanity checks for configuration errors.
  * These can be done independently of LWIP_DEBUG, without penalty.
  */
@@ -313,7 +313,7 @@
   #error "lwip_sanity_check: WARNING: PBUF_POOL_BUFSIZE does not provide enough space for protocol headers. If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
 #endif
 
-#ifndef LWIP_ESP8266
+#if ! ESP_LWIP
 #if !MEMP_MEM_MALLOC && (TCP_WND > (PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - (PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN))))
   #error "lwip_sanity_check: WARNING: TCP_WND is larger than space provided by PBUF_POOL_SIZE * (PBUF_POOL_BUFSIZE - protocol headers). If you know what you are doing, define LWIP_DISABLE_TCP_SANITY_CHECKS to 1 to disable this error."
 #endif
diff --git a/components/lwip/core/ipv4/autoip.c b/components/lwip/core/ipv4/autoip.c
index 391e8eeae..19b192836 100755
--- a/components/lwip/core/ipv4/autoip.c
+++ b/components/lwip/core/ipv4/autoip.c
@@ -76,11 +76,6 @@
 #include <stdlib.h>
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /* 169.254.0.0 */
 #define AUTOIP_NET         0xA9FE0000
 /* 169.254.1.0 */
diff --git a/components/lwip/core/ipv4/dhcp.c b/components/lwip/core/ipv4/dhcp.c
index 1f3758fa9..33d13fb32 100755
--- a/components/lwip/core/ipv4/dhcp.c
+++ b/components/lwip/core/ipv4/dhcp.c
@@ -82,10 +82,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /** DHCP_CREATE_RAND_XID: if this is set to 1, the xid is created using
  * LWIP_RAND() (this overrides DHCP_GLOBAL_XID)
  */
@@ -146,7 +142,7 @@ static u8_t dhcp_discover_select_options[] = {
   DHCP_OPTION_BROADCAST,
   DHCP_OPTION_DNS_SERVER
   
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
 /**add options for support more router by liuHan**/
    , DHCP_OPTION_DOMAIN_NAME, 
     DHCP_OPTION_NB_TINS, 
@@ -454,7 +450,7 @@ dhcp_fine_tmr(void)
     /* only act on DHCP configured interfaces */
     if (netif->dhcp != NULL) {
         
-//#ifdef LWIP_ESP8266
+//#if ESP_DHCP
       /*add DHCP retries processing by LiuHan*/
 #if 0
       if (DHCP_MAXRTX != 0) {
@@ -997,7 +993,7 @@ dhcp_discover(struct netif *netif)
     dhcp_option(dhcp, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN);
     dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
 
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
 #if LWIP_NETIF_HOSTNAME
     dhcp_option_hostname(dhcp, netif);
 #endif /* LWIP_NETIF_HOSTNAME */
diff --git a/components/lwip/core/ipv4/icmp.c b/components/lwip/core/ipv4/icmp.c
index c492ed75f..9202bb650 100755
--- a/components/lwip/core/ipv4/icmp.c
+++ b/components/lwip/core/ipv4/icmp.c
@@ -51,11 +51,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /** Small optimization: set to 0 if incoming PBUF_POOL pbuf always can be
  * used to modify and send a response packet (and to 1 if this is not the case,
  * e.g. when link header is stripped of when receiving) */
diff --git a/components/lwip/core/ipv4/igmp.c b/components/lwip/core/ipv4/igmp.c
index d75fe15fd..03f3ae384 100755
--- a/components/lwip/core/ipv4/igmp.c
+++ b/components/lwip/core/ipv4/igmp.c
@@ -92,11 +92,6 @@ Steve Reynolds
 
 #include "string.h"
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /*
  * IGMP constants
  */
diff --git a/components/lwip/core/ipv4/ip4.c b/components/lwip/core/ipv4/ip4.c
index 5f1e77a5e..1d581d4d8 100755
--- a/components/lwip/core/ipv4/ip4.c
+++ b/components/lwip/core/ipv4/ip4.c
@@ -59,11 +59,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /** Set this to 0 in the rare case of wanting to call an extra function to
  * generate the IP checksum (in contrast to calculating it on-the-fly). */
 #ifndef LWIP_INLINE_IP_CHKSUM
@@ -150,7 +145,7 @@ ip4_route_src(const ip4_addr_t *dest, const ip4_addr_t *src)
 struct netif *
 ip4_route(const ip4_addr_t *dest)
 {
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   struct netif *non_default_netif = NULL;
 #endif
   struct netif *netif;
@@ -183,7 +178,7 @@ ip4_route(const ip4_addr_t *dest)
     }
   }
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   if (non_default_netif && !ip4_addr_isbroadcast(dest, non_default_netif)){
     return non_default_netif;
   }
diff --git a/components/lwip/core/ipv4/ip4_addr.c b/components/lwip/core/ipv4/ip4_addr.c
index 3053cf087..0501b84e5 100755
--- a/components/lwip/core/ipv4/ip4_addr.c
+++ b/components/lwip/core/ipv4/ip4_addr.c
@@ -45,17 +45,8 @@
 
 /* used by IP_ADDR_ANY and IP_ADDR_BROADCAST in ip_addr.h */
 
-#ifdef LWIP_ESP8266
-//TO_DO
-//const ip_addr_t ip_addr_any ICACHE_RODATA_ATTR STORE_ATTR = IPADDR4_INIT(IPADDR_ANY);
-//const ip_addr_t ip_addr_broadcast ICACHE_RODATA_ATTR STORE_ATTR = IPADDR4_INIT(IPADDR_BROADCAST);
 const ip_addr_t ip_addr_any = IPADDR4_INIT(IPADDR_ANY);
 const ip_addr_t ip_addr_broadcast = IPADDR4_INIT(IPADDR_BROADCAST);
-#else
-const ip_addr_t ip_addr_any = IPADDR4_INIT(IPADDR_ANY);
-const ip_addr_t ip_addr_broadcast = IPADDR4_INIT(IPADDR_BROADCAST);
-#endif
-
 
 /**
  * Determine if an address is a broadcast address on a network interface
@@ -170,7 +161,7 @@ ip4addr_aton(const char *cp, ip4_addr_t *addr)
   u32_t parts[4];
   u32_t *pp = parts;
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 //#if 0
   char ch;
   unsigned long cutoff;
@@ -199,8 +190,7 @@ ip4addr_aton(const char *cp, ip4_addr_t *addr)
       }
     }
     
-#ifdef LWIP_ESP8266
-//#if 0
+#if ESP_IP4_ATON
     cutoff =(unsigned long)0xffffffff / (unsigned long)base;
     cutlim =(unsigned long)0xffffffff % (unsigned long)base;
     for (;;) {
diff --git a/components/lwip/core/ipv4/ip_frag.c b/components/lwip/core/ipv4/ip_frag.c
index 1e6b053e6..a64743350 100755
--- a/components/lwip/core/ipv4/ip_frag.c
+++ b/components/lwip/core/ipv4/ip_frag.c
@@ -51,11 +51,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 #if IP_REASSEMBLY
 /**
  * The IP reassembly code currently has the following limitations:
diff --git a/components/lwip/core/ipv6/icmp6.c b/components/lwip/core/ipv6/icmp6.c
index 0a17da33e..013983bde 100755
--- a/components/lwip/core/ipv6/icmp6.c
+++ b/components/lwip/core/ipv6/icmp6.c
@@ -56,10 +56,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 #ifndef LWIP_ICMP6_DATASIZE
 #define LWIP_ICMP6_DATASIZE   8
 #endif
diff --git a/components/lwip/core/ipv6/ip6.c b/components/lwip/core/ipv6/ip6.c
index 056d33355..380bc290c 100755
--- a/components/lwip/core/ipv6/ip6.c
+++ b/components/lwip/core/ipv6/ip6.c
@@ -59,10 +59,6 @@
 #include "lwip/debug.h"
 #include "lwip/stats.h"
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /**
  * Finds the appropriate network interface for a given IPv6 address. It tries to select
  * a netif following a sequence of heuristics:
diff --git a/components/lwip/core/ipv6/ip6_frag.c b/components/lwip/core/ipv6/ip6_frag.c
index 0792c2e1b..c9e13cd20 100755
--- a/components/lwip/core/ipv6/ip6_frag.c
+++ b/components/lwip/core/ipv6/ip6_frag.c
@@ -52,11 +52,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 #if LWIP_IPV6 && LWIP_IPV6_REASS  /* don't build if not configured for use in lwipopts.h */
 
 
diff --git a/components/lwip/core/ipv6/mld6.c b/components/lwip/core/ipv6/mld6.c
index 6a2d55c54..489c5063a 100755
--- a/components/lwip/core/ipv6/mld6.c
+++ b/components/lwip/core/ipv6/mld6.c
@@ -59,11 +59,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /*
  * MLD constants
  */
diff --git a/components/lwip/core/ipv6/nd6.c b/components/lwip/core/ipv6/nd6.c
index 39e7bfed0..36f8f78c3 100755
--- a/components/lwip/core/ipv6/nd6.c
+++ b/components/lwip/core/ipv6/nd6.c
@@ -60,11 +60,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /* Router tables. */
 struct nd6_neighbor_cache_entry neighbor_cache[LWIP_ND6_NUM_NEIGHBORS];
 struct nd6_destination_cache_entry destination_cache[LWIP_ND6_NUM_DESTINATIONS];
diff --git a/components/lwip/core/mem.c b/components/lwip/core/mem.c
index 42df6daeb..9ca9e3c4f 100755
--- a/components/lwip/core/mem.c
+++ b/components/lwip/core/mem.c
@@ -65,10 +65,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 #if MEM_USE_POOLS
 
 #if MEMP_MEM_MALLOC
diff --git a/components/lwip/core/memp.c b/components/lwip/core/memp.c
index a5169abc8..789553365 100755
--- a/components/lwip/core/memp.c
+++ b/components/lwip/core/memp.c
@@ -70,10 +70,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 #define LWIP_MEMPOOL(name,num,size,desc) LWIP_MEMPOOL_DECLARE(name,num,size,desc)
 #include "lwip/priv/memp_std.h"
 
diff --git a/components/lwip/core/netif.c b/components/lwip/core/netif.c
index 33e030412..5c308a957 100755
--- a/components/lwip/core/netif.c
+++ b/components/lwip/core/netif.c
@@ -81,10 +81,6 @@
 #define NETIF_LINK_CALLBACK(n)
 #endif /* LWIP_NETIF_LINK_CALLBACK */
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 struct netif *netif_list;
 struct netif *netif_default;
 
@@ -220,7 +216,7 @@ netif_add(struct netif *netif,
   /* netif not under DHCP control by default */
   netif->dhcp = NULL;
 
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
   netif->dhcps_pcb = NULL;
 #endif
 
@@ -233,8 +229,7 @@ netif_add(struct netif *netif,
 #endif /* LWIP_AUTOIP */
 #if LWIP_IPV6_AUTOCONFIG
 
-#ifdef LWIP_ESP8266
-//#if 0
+#if ESP_IPV6_AUTOCONFIG
   netif->ip6_autoconfig_enabled = 1;
 #else
   /* IPv6 address autoconfiguration not enabled by default */
@@ -973,7 +968,7 @@ netif_create_ip6_linklocal_address(struct netif *netif, u8_t from_mac_48bit)
     }
   }
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
     ip6_addr_set( ip_2_ip6(&netif->link_local_addr), ip_2_ip6(&netif->ip6_addr[0]) );
 #endif
 
@@ -1028,7 +1023,7 @@ netif_add_ip6_address(struct netif *netif, const ip6_addr_t *ip6addr, s8_t *chos
 }
 
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 void
 netif_create_ip4_linklocal_address(struct netif * netif)
 {
diff --git a/components/lwip/core/pbuf.c b/components/lwip/core/pbuf.c
index 044d765cd..29e24ef2b 100755
--- a/components/lwip/core/pbuf.c
+++ b/components/lwip/core/pbuf.c
@@ -78,13 +78,8 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 #include "esp_wifi_internal.h"
-#define EP_OFFSET 0
 #endif
 
 #define SIZEOF_STRUCT_PBUF        LWIP_MEM_ALIGN_SIZE(sizeof(struct pbuf))
@@ -208,12 +203,7 @@ struct pbuf *
 pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
 {
   struct pbuf *p, *q, *r;
-  
-#ifdef LWIP_ESP8266
-    u16_t offset = 0;
-#else
-    u16_t offset;
-#endif
+  u16_t offset = 0;
   
   s32_t rem_len; /* remaining length */
   LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F")\n", length));
@@ -224,48 +214,16 @@ pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
     /* add room for transport (often TCP) layer header */
     offset = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN + PBUF_TRANSPORT_HLEN;
 
-#ifdef LWIP_ESP8266    //TO_DO
-    offset += EP_OFFSET;
-#endif
-    
     break;
   case PBUF_IP:
     /* add room for IP layer header */
     offset = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN + PBUF_IP_HLEN;
 
-#ifdef LWIP_ESP8266    //TO_DO
-    offset += EP_OFFSET;
-#endif
-    
     break;
   case PBUF_LINK:
     /* add room for link layer header */
     offset = PBUF_LINK_ENCAPSULATION_HLEN + PBUF_LINK_HLEN;
 
-#ifdef LWIP_ESP8266    //TO_DO
-    /*
-     * 1. LINK_HLEN 14Byte will be remove in WLAN layer
-     * 2. IEEE80211_HDR_MAX_LEN needs 40 bytes.
-     * 3. encryption needs exra 4 bytes ahead of actual data payload, and require
-     *     DAddr and SAddr to be 4-byte aligned.
-     * 4. TRANSPORT and IP are all 20, 4 bytes aligned, nice...
-     * 5. LCC add 6 bytes more, We don't consider WAPI yet...
-     * 6. define LWIP_MEM_ALIGN to be 4 Byte aligned, pbuf struct is 16B, Only thing may be
-     *     matter is ether_hdr is not 4B aligned.
-     *
-     * So, we need extra (40 + 4 - 14) = 30 and it's happen to be 4-Byte aligned
-     *
-     *    1. lwip
-     *         | empty 30B    | eth_hdr (14B)  | payload ...|
-     *              total: 44B ahead payload
-     *    2. net80211
-     *         | max 80211 hdr, 32B | ccmp/tkip iv (8B) | sec rsv(4B) | payload ...|
-     *              total: 40B ahead sec_rsv and 44B ahead payload
-     *
-     */
-    offset += EP_OFFSET;                //remove LINK hdr in wlan
-#endif   
-
     break;
   case PBUF_RAW_TX:
     /* add room for encapsulating link layer headers (e.g. 802.11) */
@@ -274,10 +232,6 @@ pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
   case PBUF_RAW:
     offset = 0;
 
-#ifdef LWIP_ESP8266    //TO_DO
-    offset += EP_OFFSET;  
-#endif
-
     break;
   default:
     LWIP_ASSERT("pbuf_alloc: bad pbuf layer", 0);
@@ -396,9 +350,10 @@ pbuf_alloc(pbuf_layer layer, u16_t length, pbuf_type type)
   /* set flags */
   p->flags = 0;
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   p->eb = NULL; 
 #endif
+
   LWIP_DEBUGF(PBUF_DEBUG | LWIP_DBG_TRACE, ("pbuf_alloc(length=%"U16_F") == %p\n", length, (void *)p));
   return p;
 }
@@ -764,7 +719,7 @@ pbuf_free(struct pbuf *p)
         /* is this a ROM or RAM referencing pbuf? */
         } else if (type == PBUF_ROM || type == PBUF_REF) {
         
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
           if (type == PBUF_REF && p->eb != NULL ) esp_wifi_internal_free_rx_buffer(p->eb);
 #endif
 
diff --git a/components/lwip/core/raw.c b/components/lwip/core/raw.c
index 72a58d381..82ce4e3a7 100755
--- a/components/lwip/core/raw.c
+++ b/components/lwip/core/raw.c
@@ -54,10 +54,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /** The list of RAW PCBs */
 static struct raw_pcb *raw_pcbs;
 
diff --git a/components/lwip/core/stats.c b/components/lwip/core/stats.c
index 77ac3c675..b47ab0b7f 100755
--- a/components/lwip/core/stats.c
+++ b/components/lwip/core/stats.c
@@ -47,10 +47,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 struct stats_ lwip_stats;
 
 #if defined(LWIP_DEBUG) || LWIP_STATS_DISPLAY
diff --git a/components/lwip/core/tcp.c b/components/lwip/core/tcp.c
index e7ea56103..87ddf5f1a 100755
--- a/components/lwip/core/tcp.c
+++ b/components/lwip/core/tcp.c
@@ -57,10 +57,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 #ifndef TCP_LOCAL_PORT_RANGE_START
 /* From http://www.iana.org/assignments/port-numbers:
    "The Dynamic and/or Private Ports are those from 49152 through 65535" */
@@ -77,14 +73,7 @@ static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
 #define TCP_KEEP_INTVL(pcb) TCP_KEEPINTVL_DEFAULT
 #endif /* LWIP_TCP_KEEPALIVE */
 
-#ifdef LWIP_ESP8266
-//TO_DO
-//char tcp_state_str[12];
-//const char tcp_state_str_rodata[][12] ICACHE_RODATA_ATTR STORE_ATTR = {
 const char * const tcp_state_str[] = {
-#else
-const char * const tcp_state_str[] = {
-#endif
   "CLOSED",
   "LISTEN",
   "SYN_SENT",
@@ -100,27 +89,14 @@ const char * const tcp_state_str[] = {
 
 
 /* last local TCP port */
-#ifdef LWIP_ESP8266
 static s16_t tcp_port = TCP_LOCAL_PORT_RANGE_START;
-#else
-static u16_t tcp_port = TCP_LOCAL_PORT_RANGE_START;
-#endif
 
 /* Incremented every coarse grained timer shot (typically every 500 ms). */
 u32_t tcp_ticks;
 
-#ifdef LWIP_ESP8266
-//TO_DO
-//const u8_t tcp_backoff[13] ICACHE_RODATA_ATTR STORE_ATTR ={ 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7};
-//const u8_t tcp_persist_backoff[7] ICACHE_RODATA_ATTR STORE_ATTR = { 3, 6, 12, 24, 48, 96, 120 };
-
-const u8_t tcp_backoff[13] = { 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7};
-const u8_t tcp_persist_backoff[7] = { 3, 6, 12, 24, 48, 96, 120 };
-#else
 const u8_t tcp_backoff[13] = { 1, 2, 3, 4, 5, 6, 7, 7, 7, 7, 7, 7, 7};
  /* Times per slowtmr hits */
 const u8_t tcp_persist_backoff[7] = { 3, 6, 12, 24, 48, 96, 120 };
-#endif
 
 
 /* The TCP PCB lists. */
@@ -136,19 +112,9 @@ struct tcp_pcb *tcp_active_pcbs;
 struct tcp_pcb *tcp_tw_pcbs;
 
 /** An array with all (non-temporary) PCB lists, mainly used for smaller code size */
-#ifdef LWIP_ESP8266
-//TO_DO
-//struct tcp_pcb ** const tcp_pcb_lists[] ICACHE_RODATA_ATTR STORE_ATTR = {&tcp_listen_pcbs.pcbs, &tcp_bound_pcbs,
-   //     &tcp_active_pcbs, &tcp_tw_pcbs};
 struct tcp_pcb ** const tcp_pcb_lists[] = {&tcp_listen_pcbs.pcbs, &tcp_bound_pcbs,
         &tcp_active_pcbs, &tcp_tw_pcbs};
 
-#else
-struct tcp_pcb ** const tcp_pcb_lists[] = {&tcp_listen_pcbs.pcbs, &tcp_bound_pcbs,
-        &tcp_active_pcbs, &tcp_tw_pcbs};
-#endif
-
-
 u8_t tcp_active_pcbs_changed;
 
 /** Timer counter to handle calling slow-timer from tcp_tmr() */
@@ -720,7 +686,7 @@ tcp_new_port(void)
 
 again:
 
-#ifdef LWIP_ESP8266
+#if ESP_RANDOM_TCP_PORT
 	tcp_port = system_get_time();
 	if (tcp_port < 0)
 		tcp_port = LWIP_RAND() - tcp_port;
@@ -915,13 +881,7 @@ tcp_slowtmr_start:
         
         /* If snd_wnd is zero, use persist timer to send 1 byte probes
          * instead of using the standard retransmission mechanism. */
-#ifdef LWIP_ESP8266
-//NEED TO DO
-        //u8_t backoff_cnt = system_get_data_of_array_8(tcp_persist_backoff, pcb->persist_backoff-1);
         u8_t backoff_cnt = tcp_persist_backoff[pcb->persist_backoff-1];
-#else
-        u8_t backoff_cnt = tcp_persist_backoff[pcb->persist_backoff-1];
-#endif
 
         if (pcb->persist_cnt < backoff_cnt) {
           pcb->persist_cnt++;
@@ -949,15 +909,7 @@ tcp_slowtmr_start:
           /* Double retransmission time-out unless we are trying to
            * connect to somebody (i.e., we are in SYN_SENT). */
           if (pcb->state != SYN_SENT) {
-
-#ifdef LWIP_ESP8266
-//TO_DO
-//            pcb->rto = ((pcb->sa >> 3) + pcb->sv) << system_get_data_of_array_8(tcp_backoff, pcb->nrtx);  
               pcb->rto = ((pcb->sa >> 3) + pcb->sv) << tcp_backoff[pcb->nrtx];
-#else
-              pcb->rto = ((pcb->sa >> 3) + pcb->sv) << tcp_backoff[pcb->nrtx];
-#endif
-
           }
 
           /* Reset the retransmission timer. */
@@ -1436,7 +1388,7 @@ tcp_kill_timewait(void)
   }
 }
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 /**
  * Kills the oldest connection that is in FIN_WAIT_2 state.
  * Called from tcp_alloc() if no more connections are available.
@@ -1502,7 +1454,7 @@ tcp_alloc(u8_t prio)
   struct tcp_pcb *pcb;
   u32_t iss;
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
     /*Kills the oldest connection that is in TIME_WAIT state.*/
     u8_t time_wait_num = 0;
     for(pcb = tcp_tw_pcbs; pcb != NULL; pcb = pcb->next) {
@@ -2015,14 +1967,7 @@ void tcp_netif_ipv4_addr_changed(const ip4_addr_t* old_addr, const ip4_addr_t* n
 const char*
 tcp_debug_state_str(enum tcp_state s)
 {
-#ifdef LWIP_ESP8266
-//TO_DO
-      //system_get_string_from_flash(tcp_state_str_rodata[s], tcp_state_str, 12);
-      //return tcp_state_str;
       return tcp_state_str[s];
-#else
-      return tcp_state_str[s];
-#endif
 }
 
 #if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
diff --git a/components/lwip/core/tcp_in.c b/components/lwip/core/tcp_in.c
index 90ebf1723..f3284233e 100755
--- a/components/lwip/core/tcp_in.c
+++ b/components/lwip/core/tcp_in.c
@@ -60,11 +60,6 @@
 #include "lwip/nd6.h"
 #endif /* LWIP_ND6_TCP_REACHABILITY_HINTS */
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /** Initial CWND calculation as defined RFC 2581 */
 #define LWIP_TCP_CALC_INITIAL_CWND(mss) LWIP_MIN((4U * (mss)), LWIP_MAX((2U * (mss)), 4380U));
 /** Initial slow start threshold value: we use the full window */
@@ -329,20 +324,6 @@ tcp_input(struct pbuf *p, struct netif *inp)
 
 
   if (pcb != NULL) {
-
-#ifdef LWIP_ESP8266
-//No Need Any more
-/*
-	extern char RxNodeNum(void);
-	if(RxNodeNum() <= 2)
-	{
-extern void pbuf_free_ooseq(void);
-		pbuf_free_ooseq();
-	}
-*/
-#endif
-
-    
     /* The incoming segment belongs to a connection. */
 #if TCP_INPUT_DEBUG
     tcp_debug_print_state(pcb->state);
diff --git a/components/lwip/core/tcp_out.c b/components/lwip/core/tcp_out.c
index 5f10befae..f189623f5 100755
--- a/components/lwip/core/tcp_out.c
+++ b/components/lwip/core/tcp_out.c
@@ -59,10 +59,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 /* Define some copy-macros for checksum-on-copy so that the code looks
    nicer by preventing too many ifdef's. */
 #if TCP_CHECKSUM_ON_COPY
diff --git a/components/lwip/core/timers.c b/components/lwip/core/timers.c
index 0a361474e..ef47b2e18 100755
--- a/components/lwip/core/timers.c
+++ b/components/lwip/core/timers.c
@@ -62,11 +62,6 @@
 #include "lwip/sys.h"
 #include "lwip/pbuf.h"
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 /** The one and only timeout list */
 static struct sys_timeo *next_timeout;
 #if NO_SYS
@@ -162,7 +157,7 @@ dhcp_timer_coarse(void *arg)
   LWIP_DEBUGF(TIMERS_DEBUG, ("tcpip: dhcp_coarse_tmr()\n"));
   dhcp_coarse_tmr();
 
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
   extern void dhcps_coarse_tmr(void);
   dhcps_coarse_tmr();
 #endif
@@ -294,12 +289,6 @@ void sys_timeouts_init(void)
 #endif /* LWIP_ARP */
 #if LWIP_DHCP
 
-#ifdef LWIP_ESP8266
-       // DHCP_MAXRTX = 0;
-#endif
-
-
-
   sys_timeout(DHCP_COARSE_TIMER_MSECS, dhcp_timer_coarse, NULL);
   sys_timeout(DHCP_FINE_TIMER_MSECS, dhcp_timer_fine, NULL);
 #endif /* LWIP_DHCP */
@@ -346,7 +335,7 @@ void
 sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name)
 #else /* LWIP_DEBUG_TIMERNAMES */
 
-#ifdef LWIP_ESP8266
+#if ESP_LIGHT_SLEEP
         u32_t LwipTimOutLim = 0;	// For light sleep. time out. limit is 3000ms
 #endif
 
@@ -379,7 +368,7 @@ sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)
   timeout->h = handler;
   timeout->arg = arg;
 
-#ifdef LWIP_ESP8266
+#if ESP_LIGHT_SLEEP
     if(msecs < LwipTimOutLim)
     	msecs = LwipTimOutLim;
 #endif
diff --git a/components/lwip/core/udp.c b/components/lwip/core/udp.c
index e44ab7e73..37ae2c179 100755
--- a/components/lwip/core/udp.c
+++ b/components/lwip/core/udp.c
@@ -67,11 +67,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
-
 #ifndef UDP_LOCAL_PORT_RANGE_START
 /* From http://www.iana.org/assignments/port-numbers:
    "The Dynamic and/or Private Ports are those from 49152 through 65535" */
diff --git a/components/lwip/include/lwip/lwip/api.h b/components/lwip/include/lwip/lwip/api.h
index 985eb76d4..5b6a21ecf 100755
--- a/components/lwip/include/lwip/lwip/api.h
+++ b/components/lwip/include/lwip/lwip/api.h
@@ -185,10 +185,6 @@ struct netconn {
   /** sem that is used to synchronously execute functions in the core context */
   sys_sem_t op_completed;
 
-#ifdef LWIP_ESP8266
-  sys_sem_t snd_op_completed;	//only for snd semphore
-#endif
-  
 #endif
 
   /** mbox where received packets are stored until they are fetched
diff --git a/components/lwip/include/lwip/lwip/dhcp.h b/components/lwip/include/lwip/lwip/dhcp.h
index 2d8926eca..76ce1543f 100755
--- a/components/lwip/include/lwip/lwip/dhcp.h
+++ b/components/lwip/include/lwip/lwip/dhcp.h
@@ -249,7 +249,7 @@ void dhcp_fine_tmr(void);
 #define DHCP_OPTION_NTP 42
 #define DHCP_OPTION_END 255
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 /**add options for support more router by liuHan**/
 #define DHCP_OPTION_DOMAIN_NAME 15
 #define DHCP_OPTION_PRD 31
diff --git a/components/lwip/include/lwip/lwip/dns.h b/components/lwip/include/lwip/lwip/dns.h
index 1ceed0d88..5ef12e56c 100755
--- a/components/lwip/include/lwip/lwip/dns.h
+++ b/components/lwip/include/lwip/lwip/dns.h
@@ -36,7 +36,7 @@
 
 #include "lwip/opt.h"
 
-#ifdef LWIP_ESP8266
+#if ESP_DNS
 #include "lwip/err.h"
 #endif
 
diff --git a/components/lwip/include/lwip/lwip/err.h b/components/lwip/include/lwip/lwip/err.h
index 26fb91db9..a766ee186 100755
--- a/components/lwip/include/lwip/lwip/err.h
+++ b/components/lwip/include/lwip/lwip/err.h
@@ -60,7 +60,7 @@ typedef s8_t err_t;
 #define ERR_USE        -8    /* Address in use.          */
 
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 #define ERR_ALREADY    -9	 /* Already connected.       */
 #define ERR_ISCONN     -10   /* Conn already established.*/
 #define ERR_IS_FATAL(e) ((e) < ERR_ISCONN)
diff --git a/components/lwip/include/lwip/lwip/mem.h b/components/lwip/include/lwip/lwip/mem.h
index ca76f6632..a90d07256 100755
--- a/components/lwip/include/lwip/lwip/mem.h
+++ b/components/lwip/include/lwip/lwip/mem.h
@@ -51,8 +51,6 @@ typedef size_t mem_size_t;
  * allow these defines to be overridden.
  */
 
-#ifndef MEMLEAK_DEBUG
-
 #ifndef mem_free
 #define mem_free free
 #endif
@@ -63,41 +61,6 @@ typedef size_t mem_size_t;
 #define mem_calloc calloc
 #endif
 
-/*      DYC_NEED_TO_DO_LATER
-#ifndef mem_realloc
-#define mem_realloc 
-#endif
-#ifndef mem_zalloc
-#define mem_zalloc
-#endif
-*/
-
-#else
-/*
-#ifndef mem_free
-#define mem_free(s) \
-	do{\
-		const char *file = mem_debug_file;\
-		vPortFree(s, file, __LINE__);\
-	}while(0)
-#endif
-#ifndef mem_malloc
-#define mem_malloc(s) ({const char *file = mem_debug_file; pvPortMalloc(s, file, __LINE__);})
-#endif
-#ifndef mem_calloc
-#define mem_calloc(s) ({const char *file = mem_debug_file; pvPortCalloc(s, file, __LINE__);})
-#endif
-#ifndef mem_realloc
-#define mem_realloc(p, s) ({const char *file = mem_debug_file; pvPortRealloc(p, s, file, __LINE__);})
-#endif
-#ifndef mem_zalloc
-#define mem_zalloc(s) ({const char *file = mem_debug_file; pvPortZalloc(s, file, __LINE__);})
-#endif
-*/
-#endif
-
-
-
 /* Since there is no C library allocation function to shrink memory without
    moving it, define this to nothing. */
 #ifndef mem_trim
diff --git a/components/lwip/include/lwip/lwip/netif.h b/components/lwip/include/lwip/lwip/netif.h
index 99066a5a1..666f77eb9 100755
--- a/components/lwip/include/lwip/lwip/netif.h
+++ b/components/lwip/include/lwip/lwip/netif.h
@@ -177,7 +177,7 @@ typedef err_t (*netif_mld_mac_filter_fn)(struct netif *netif,
 #endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
 
 
-#ifdef LWIP_ESP8266
+#if ESP_DHCP
 /*add DHCP event processing by LiuHan*/
 typedef void (*dhcp_event_fn)(void);
 #endif
@@ -190,7 +190,7 @@ struct netif {
   /** pointer to next in linked list */
   struct netif *next;
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 //ip_addr_t  is changed   by marco  IPV4, IPV6
   ip_addr_t link_local_addr;
 #endif
@@ -248,7 +248,7 @@ struct netif {
   /** the DHCP client state information for this netif */
   struct dhcp *dhcp;
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   struct udp_pcb *dhcps_pcb;	
   dhcp_event_fn dhcp_event;
 #endif  
diff --git a/components/lwip/include/lwip/lwip/opt.h b/components/lwip/include/lwip/lwip/opt.h
index c286712e0..51d340e00 100755
--- a/components/lwip/include/lwip/lwip/opt.h
+++ b/components/lwip/include/lwip/lwip/opt.h
@@ -3008,8 +3008,8 @@
 #define LWIP_PERF                       0
 #endif
 
-#ifndef THREAD_SAFE_DEBUG
-#define THREAD_SAFE_DEBUG               0
+#ifndef ESP_THREAD_SAFE_DEBUG
+#define ESP_THREAD_SAFE_DEBUG               0
 #endif
 
 #endif /* LWIP_HDR_OPT_H */
diff --git a/components/lwip/include/lwip/lwip/pbuf.h b/components/lwip/include/lwip/lwip/pbuf.h
index aaf5e294a..1834c4e04 100755
--- a/components/lwip/include/lwip/lwip/pbuf.h
+++ b/components/lwip/include/lwip/lwip/pbuf.h
@@ -137,7 +137,7 @@ struct pbuf {
    */
   u16_t ref;
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   void  *eb;
 #endif
 };
diff --git a/components/lwip/include/lwip/lwip/priv/api_msg.h b/components/lwip/include/lwip/lwip/priv/api_msg.h
index 329fa0de3..02d191a53 100755
--- a/components/lwip/include/lwip/lwip/priv/api_msg.h
+++ b/components/lwip/include/lwip/lwip/priv/api_msg.h
@@ -187,7 +187,7 @@ struct dns_api_msg {
 #endif /* LWIP_DNS */
 
 #if LWIP_NETCONN_SEM_PER_THREAD
-#ifdef LWIP_ESP8266
+#if ESP_THREAD_SAFE
 #define LWIP_NETCONN_THREAD_SEM_GET() sys_thread_sem_get()
 #define LWIP_NETCONN_THREAD_SEM_ALLOC() sys_thread_sem_init()
 #define LWIP_NETCONN_THREAD_SEM_FREE() sys_thread_sem_deinit()
@@ -222,10 +222,6 @@ struct dns_api_msg {
 #define TCPIP_APIMSG(m,f,e)   do { (m)->function = f; (e) = tcpip_apimsg(m); } while(0)
 #define TCPIP_APIMSG_ACK(m)   do { NETCONN_SET_SAFE_ERR((m)->conn, (m)->err); sys_sem_signal(LWIP_API_MSG_SEM(m)); } while(0)
 
-#ifdef LWIP_ESP8266
-#define TCPIP_APIMSG_ACK_SND(m)  do { NETCONN_SET_SAFE_ERR((m)->conn, (m)->err); sys_sem_signal(LWIP_API_MSG_SND_SEM(m)); } while(0) 
-#endif
-
 #endif /* LWIP_TCPIP_CORE_LOCKING */
 
 void lwip_netconn_do_newconn         (void *m);
diff --git a/components/lwip/include/lwip/lwip/sockets.h b/components/lwip/include/lwip/lwip/sockets.h
index fc2b7e2d1..d9622ea03 100755
--- a/components/lwip/include/lwip/lwip/sockets.h
+++ b/components/lwip/include/lwip/lwip/sockets.h
@@ -509,7 +509,7 @@ int lwip_fcntl(int s, int cmd, int val);
 #if LWIP_COMPAT_SOCKETS
 #if LWIP_COMPAT_SOCKETS != 2
 
-#if LWIP_THREAD_SAFE
+#if ESP_THREAD_SAFE
 
 int lwip_accept_r(int s, struct sockaddr *addr, socklen_t *addrlen);
 int lwip_bind_r(int s, const struct sockaddr *name, socklen_t namelen);
@@ -594,7 +594,7 @@ int lwip_fcntl_r(int s, int cmd, int val);
 #define fcntl(s,cmd,val)                          lwip_fcntl(s,cmd,val)
 #define ioctl(s,cmd,argp)                         lwip_ioctl(s,cmd,argp)
 #endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
-#endif /* LWIP_THREAD_SAFE */
+#endif /* ESP_THREAD_SAFE */
 
 #endif /* LWIP_COMPAT_SOCKETS != 2 */
 
diff --git a/components/lwip/include/lwip/port/lwipopts.h b/components/lwip/include/lwip/port/lwipopts.h
index 5667e2d20..75f349280 100755
--- a/components/lwip/include/lwip/port/lwipopts.h
+++ b/components/lwip/include/lwip/port/lwipopts.h
@@ -37,7 +37,6 @@
 #include "sdkconfig.h"
 
 /* Enable all Espressif-only options */
-#define LWIP_ESP8266
 
 /*
    -----------------------------------------------
@@ -510,14 +509,42 @@ extern unsigned char misc_prof_get_tcp_snd_buf(void);
  */
 #define TCPIP_DEBUG                     LWIP_DBG_OFF
 
+/* Enable all Espressif-only options */
+
+#define ESP_LWIP                        1
+#define ESP_PER_SOC_TCP_WND             1
+#define ESP_THREAD_SAFE                 1
+#define ESP_THREAD_SAFE_DEBUG           LWIP_DBG_OFF
+#define ESP_DHCP                        1
+#define ESP_DNS                         1
+#define ESP_IPV6_AUTOCONFIG             1
+#define ESP_PERF                        0
+#define ESP_RANDOM_TCP_PORT             1
+#define ESP_IP4_ATON                    1
+#define ESP_LIGHT_SLEEP                 1
+
+
+#if ESP_PER_SOC_TCP_WND
+#define TCP_WND_DEFAULT                      (4*TCP_MSS)
+#define TCP_SND_BUF_DEFAULT                  (2*TCP_MSS)
+#define TCP_WND(pcb)                         (pcb->per_soc_tcp_wnd)
+#define TCP_SND_BUF(pcb)                     (pcb->per_soc_tcp_snd_buf)
+#else
+#if ESP_PERF
+extern unsigned char misc_prof_get_tcpw(void);
+extern unsigned char misc_prof_get_tcp_snd_buf(void);
+#define TCP_WND(pcb)                         (misc_prof_get_tcpw()*TCP_MSS)
+#define TCP_SND_BUF(pcb)                     (misc_prof_get_tcp_snd_buf()*TCP_MSS)
+#endif
+#endif
+
 /**
  * DHCP_DEBUG: Enable debugging in dhcp.c.
  */
 #define DHCP_DEBUG                      LWIP_DBG_OFF
 #define LWIP_DEBUG                      0
 #define TCP_DEBUG                       LWIP_DBG_OFF
-#define THREAD_SAFE_DEBUG               LWIP_DBG_OFF
-#define LWIP_THREAD_SAFE                1
+#define ESP_THREAD_SAFE_DEBUG               LWIP_DBG_OFF
 
 #define CHECKSUM_CHECK_UDP              0
 #define CHECKSUM_CHECK_IP               0
diff --git a/components/lwip/netif/etharp.c b/components/lwip/netif/etharp.c
index 5891c5cfd..776e949f7 100755
--- a/components/lwip/netif/etharp.c
+++ b/components/lwip/netif/etharp.c
@@ -55,10 +55,6 @@
 
 #include <string.h>
 
-#ifdef MEMLEAK_DEBUG
-static const char mem_debug_file[] ICACHE_RODATA_ATTR STORE_ATTR = __FILE__;
-#endif
-
 #if LWIP_IPV4 && LWIP_ARP /* don't build if not configured for use in lwipopts.h */
 
 /** Re-request a used ARP entry 1 minute before it would expire to prevent
diff --git a/components/lwip/port/freertos/sys_arch.c b/components/lwip/port/freertos/sys_arch.c
index 74a4a996a..15ba3011d 100755
--- a/components/lwip/port/freertos/sys_arch.c
+++ b/components/lwip/port/freertos/sys_arch.c
@@ -56,7 +56,7 @@ sys_mutex_new(sys_mutex_t *pxMutex)
     xReturn = ERR_OK;
   }
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mutex_new: m=%p\n", *pxMutex));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mutex_new: m=%p\n", *pxMutex));
 
   return xReturn;
 }
@@ -89,7 +89,7 @@ sys_mutex_unlock(sys_mutex_t *pxMutex)
 void
 sys_mutex_free(sys_mutex_t *pxMutex)
 {
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mutex_free: m=%p\n", *pxMutex));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mutex_free: m=%p\n", *pxMutex));
   vQueueDelete(*pxMutex);
 }
 #endif
@@ -192,20 +192,20 @@ sys_mbox_new(sys_mbox_t *mbox, int size)
 {
   *mbox = malloc(sizeof(struct sys_mbox_s));
   if (*mbox == NULL){
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("fail to new *mbox\n"));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("fail to new *mbox\n"));
     return ERR_MEM;
   }
 
   (*mbox)->os_mbox = xQueueCreate(size, sizeof(void *));
 
   if ((*mbox)->os_mbox == NULL) {
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("fail to new *mbox->os_mbox\n"));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("fail to new *mbox->os_mbox\n"));
     free(*mbox);
     return ERR_MEM;
   }
 
   if (sys_mutex_new(&((*mbox)->lock)) != ERR_OK){
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("fail to new *mbox->lock\n"));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("fail to new *mbox->lock\n"));
     vQueueDelete((*mbox)->os_mbox);
     free(*mbox);
     return ERR_MEM;
@@ -213,7 +213,7 @@ sys_mbox_new(sys_mbox_t *mbox, int size)
 
   (*mbox)->alive = true;
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("new *mbox ok mbox=%p os_mbox=%p mbox_lock=%p\n", *mbox, (*mbox)->os_mbox, (*mbox)->lock));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("new *mbox ok mbox=%p os_mbox=%p mbox_lock=%p\n", *mbox, (*mbox)->os_mbox, (*mbox)->lock));
   return ERR_OK;
 }
 
@@ -234,7 +234,7 @@ sys_mbox_trypost(sys_mbox_t *mbox, void *msg)
   if (xQueueSend((*mbox)->os_mbox, &msg, (portTickType)0) == pdPASS) {
     xReturn = ERR_OK;
   } else {
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("trypost mbox=%p fail\n", (*mbox)->os_mbox));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("trypost mbox=%p fail\n", (*mbox)->os_mbox));
     xReturn = ERR_MEM;
   }
 
@@ -271,7 +271,7 @@ sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout)
 
   if (*mbox == NULL){
     *msg = NULL;
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch: null mbox\n"));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch: null mbox\n"));
     return -1;
   }
 
@@ -294,14 +294,14 @@ sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout)
   } else { // block forever for a message.
     
     while (1){
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch: fetch mbox=%p os_mbox=%p lock=%p\n", mbox, (*mbox)->os_mbox, (*mbox)->lock));
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch: fetch mbox=%p os_mbox=%p lock=%p\n", mbox, (*mbox)->os_mbox, (*mbox)->lock));
       if (pdTRUE == xQueueReceive((*mbox)->os_mbox, &(*msg), portMAX_DELAY)){
-        LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch:mbox rx msg=%p\n", (*msg)));
+        LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch:mbox rx msg=%p\n", (*msg)));
         break;
       }
 
       if ((*mbox)->alive == false){
-        LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch:mbox not alive\n"));
+        LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_arch_mbox_fetch:mbox not alive\n"));
         *msg = NULL;
         break;
       }
@@ -356,24 +356,24 @@ sys_mbox_free(sys_mbox_t *mbox)
   uint16_t count = 0;
   bool post_null = true;
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free: set alive false\n"));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free: set alive false\n"));
   (*mbox)->alive = false;
 
   while ( count++ < MAX_POLL_CNT ){ //ESP32_WORKAROUND
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free:try lock=%d\n", count));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free:try lock=%d\n", count));
     if (!sys_mutex_trylock( &(*mbox)->lock )){
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free:get lock ok %d\n", count));
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free:get lock ok %d\n", count));
       sys_mutex_unlock( &(*mbox)->lock );
       break;
     }
 
     if (post_null){
-      LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free: post null to mbox\n"));
+      LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free: post null to mbox\n"));
       if (sys_mbox_trypost( mbox, NULL) != ERR_OK){
-        LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free: post null mbox fail\n"));
+        LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free: post null mbox fail\n"));
       } else {
         post_null = false;
-        LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free: post null mbox ok\n"));
+        LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free: post null mbox ok\n"));
       }
     }
 
@@ -383,7 +383,7 @@ sys_mbox_free(sys_mbox_t *mbox)
     sys_delay_ms(PER_POLL_DELAY);
   }
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sys_mbox_free:free mbox\n"));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sys_mbox_free:free mbox\n"));
 
   if (uxQueueMessagesWaiting((*mbox)->os_mbox)) {
     xQueueReset((*mbox)->os_mbox);
@@ -491,7 +491,7 @@ sys_sem_t* sys_thread_sem_get(void)
   if (!sem){
     sem = sys_thread_sem_init();
   }
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sem_get s=%p\n", sem));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sem_get s=%p\n", sem));
   return sem;
 }
 
@@ -500,12 +500,12 @@ static void sys_thread_tls_free(int index, void* data)
   sys_sem_t *sem = (sys_sem_t*)(data);
 
   if (sem && *sem){
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sem del, i=%d sem=%p\n", index, *sem));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sem del, i=%d sem=%p\n", index, *sem));
     vSemaphoreDelete(*sem);
   }
 
   if (sem){
-    LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sem pointer del, i=%d sem_p=%p\n", index, sem));
+    LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sem pointer del, i=%d sem_p=%p\n", index, sem));
     free(sem);
   }
 }
@@ -526,7 +526,7 @@ sys_sem_t* sys_thread_sem_init(void)
     return 0;
   }
 
-  LWIP_DEBUGF(THREAD_SAFE_DEBUG, ("sem init sem_p=%p sem=%p cb=%p\n", sem, *sem, sys_thread_tls_free));
+  LWIP_DEBUGF(ESP_THREAD_SAFE_DEBUG, ("sem init sem_p=%p sem=%p cb=%p\n", sem, *sem, sys_thread_tls_free));
   vTaskSetThreadLocalStoragePointerAndDelCallback(xTaskGetCurrentTaskHandle(), SYS_TLS_INDEX, sem, (TlsDeleteCallbackFunction_t)sys_thread_tls_free);
 
   return sem;
diff --git a/components/lwip/port/netif/wlanif.c b/components/lwip/port/netif/wlanif.c
index 0b4fe70ba..548bb7f97 100755
--- a/components/lwip/port/netif/wlanif.c
+++ b/components/lwip/port/netif/wlanif.c
@@ -56,16 +56,8 @@
 #define IFNAME0 'e'
 #define IFNAME1 'n'
 
-#ifdef LWIP_ESP8266
-//TO_DO
-//char *hostname;
-//bool default_hostname = 1;
-
 static char hostname[16];
-#else
-static char hostname[16];
-#endif
-#ifdef PERF
+#if ESP_PERF
 uint32_t g_rx_alloc_pbuf_fail_cnt = 0;
 #endif
 
@@ -95,7 +87,7 @@ low_level_init(struct netif *netif)
   /* don't set NETIF_FLAG_ETHARP if this device is not an ethernet one */
   netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_LINK_UP;
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 
 #if LWIP_IGMP
 
@@ -133,7 +125,7 @@ low_level_output(struct netif *netif, struct pbuf *p)
     return ERR_IF;
   } 
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
     q = p;
     u16_t pbuf_x_len = 0;
     pbuf_x_len = q->len;
@@ -172,7 +164,7 @@ low_level_output(struct netif *netif, struct pbuf *p)
  * @param netif the lwip network interface structure for this ethernetif
  */
 void
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 wlanif_input(struct netif *netif, void *buffer, u16_t len, void* eb)
 #else
 wlanif_input(struct netif *netif, void *buffer, uint16 len)
@@ -180,17 +172,17 @@ wlanif_input(struct netif *netif, void *buffer, uint16 len)
 {
   struct pbuf *p;
   
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
     if(buffer== NULL)
     	goto _exit;
     if(netif == NULL)
     	goto _exit;
 #endif
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
   p = pbuf_alloc(PBUF_RAW, len, PBUF_REF);
   if (p == NULL){
-#ifdef PERF
+#if ESP_PERF
       g_rx_alloc_pbuf_fail_cnt++;
 #endif
       return;
@@ -236,7 +228,7 @@ wlanif_init(struct netif *netif)
 #if LWIP_NETIF_HOSTNAME
   /* Initialize interface hostname */
 
-#ifdef LWIP_ESP8266
+#if ESP_LWIP
 //TO_DO
 /*
   if ((struct netif *)wifi_get_netif(STATION_IF) == netif) {