optimize: Support to put rodata to Flash

Version(488a5a6) Refer to ld/eagle.app.v6.common.ld, you can add your libraries into .irom0.text segment.
2025-07-04 08:03:31 +08:00 · 2017-03-16 19:09:42 +08:00
parent bbdf36667a
commit 17c4971756
27 changed files with 1056 additions and 853 deletions
--- a/25
+++ b/25
@ -35,6 +35,29 @@ DEALINGS IN THE SOFTWARE.
 <EFBFBD>ͷ<EFBFBD><EFBFBD><EFBFBD>Ȩ<EFBFBD>ı<EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ߺͰ<EFBFBD>Ȩ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>¾<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ժ<EFBFBD>ͬ<EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȩ
 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>κ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>⡢<EFBFBD>𺦻<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>θ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>

-
+Exception vectors include code relicensed from the following:
+Original vector contents Copyright (C) 2014-2015 Espressif Systems
+Additions Copyright (C) Superhouse Automation Pty Ltd and Angus Gratton
+Redistribution and use in source and binary forms, with or without modification, are
+permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this list of
+conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice, this list
+of conditions and the following disclaimer in the documentation and/or other materials
+provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its contributors may be used
+to endorse or promote products derived from this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS
+OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
+IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.


--- a/4
+++ b/4
@ -201,7 +201,8 @@ CCFLAGS += 			\
 	-mtext-section-literals \
 	-ffunction-sections \
 	-fdata-sections	\
-	-fno-builtin-printf
+	-fno-builtin-printf	\
+	-fno-jump-tables
 #	-Wall			

 CFLAGS = $(CCFLAGS) $(DEFINES) $(EXTRA_CCFLAGS) $(INCLUDES)
@ -407,3 +408,4 @@ INCLUDES += -I $(SDK_PATH)/include/nopoll
 INCLUDES += -I $(SDK_PATH)/include/spiffs
 INCLUDES += -I $(SDK_PATH)/include/ssl
 INCLUDES += -I $(SDK_PATH)/include/json
+INCLUDES += -I $(SDK_PATH)/include/openssl
--- a/include/openssl/platform/ssl_port.h
+++ b/include/openssl/platform/ssl_port.h
@ -66,14 +66,14 @@ extern void vPortFree(void *pv);
 #define ssl_speed_up_enter() system_update_cpu_freq(SYS_CPU_160MHZ)
 #define ssl_speed_up_exit()  system_update_cpu_freq(SYS_CPU_80MHZ)

-#ifndef ets_printf
-#define ets_printf(fmt, ...) do {    \
-    static const char flash_str[] ICACHE_RODATA_ATTR STORE_ATTR = fmt;  \
-    printf(flash_str, ##__VA_ARGS__);   \
+#ifndef os_printf
+#define os_printf(fmt, ...) do {    \
+        static const char flash_str[] ICACHE_RODATA_ATTR STORE_ATTR = fmt;  \
+        printf(flash_str, ##__VA_ARGS__);   \
    } while(0)
 #endif

-#define SSL_PRINT_LOG ets_printf
+#define SSL_DEBUG_LOG os_printf

 #define LOCAL_ATRR ICACHE_RODATA_ATTR STORE_ATTR

--- a/ld/eagle.app.v6.common.ld
+++ b/ld/eagle.app.v6.common.ld
@ -62,6 +62,59 @@ SECTIONS
    _dport0_data_end = ABSOLUTE(.);
  } >dport0_0_seg :dport0_0_phdr

+  .text : ALIGN(4)
+  {
+    _stext = .;
+    _text_start = ABSOLUTE(.);
+    *(.UserEnter.text)
+    . = ALIGN(16);
+    *(.DebugExceptionVector.text)
+    . = ALIGN(16);
+    *(.NMIExceptionVector.text)
+    . = ALIGN(16);
+    *(.KernelExceptionVector.text)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    . = ALIGN(16);
+    *(.UserExceptionVector.text)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    . = ALIGN(16);
+    *(.DoubleExceptionVector.text)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    LONG(0)
+    . = ALIGN (16);
+    *(.entry.text)
+    *(.init.literal)
+    *(.init)
+    *libfreertos.a:(.literal .text .literal.* .text.*)
+    *(.literal .text .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
+    *(.fini.literal)
+    *(.fini)
+    *(.gnu.version)
+    _text_end = ABSOLUTE(.);
+    _etext = .;
+  } >iram1_0_seg :iram1_0_phdr
+
+  .irom0.text : ALIGN(4)
+  {
+    _irom0_text_start = ABSOLUTE(.);
+    *libuser.a:(.rodata.* .rodata)
+    *libcirom.a:(.rodata.* .rodata)
+    *libmbedtls.a:(.rodata.* .rodata)
+    *libssl.a:(.rodata.* .rodata)
+    *libopenssl.a:(.rodata.* .rodata)
+    *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
+    *(.literal.* .text.*)
+    _irom0_text_end = ABSOLUTE(.);
+  } >irom0_0_seg :irom0_0_phdr
+
  .data : ALIGN(4)
  {
    _data_start = ABSOLUTE(.);
@ -112,7 +165,7 @@ SECTIONS
    *(.xt_except_desc_end)
    *(.dynamic)
    *(.gnu.version_d)
-    . = ALIGN(4);		/* this table MUST be 4-byte aligned */
+    . = ALIGN(4);       /* this table MUST be 4-byte aligned */
    _bss_table_start = ABSOLUTE(.);
    LONG(_bss_start)
    LONG(_bss_end)
@ -122,9 +175,9 @@ SECTIONS

  .UserExceptionVector.literal : AT(LOADADDR(.rodata) + (ADDR(.UserExceptionVector.literal) - ADDR(.rodata))) ALIGN(4)
  {
-  	_UserExceptionVector_literal_start = ABSOLUTE(.);
-  	*(.UserExceptionVector.literal)
-  	_UserExceptionVector_literal_end = ABSOLUTE(.);
+    _UserExceptionVector_literal_start = ABSOLUTE(.);
+    *(.UserExceptionVector.literal)
+    _UserExceptionVector_literal_end = ABSOLUTE(.);
  } >dram0_0_seg :dram0_0_phdr

  .bss ALIGN(8) (NOLOAD) : ALIGN(4)
@ -151,46 +204,6 @@ SECTIONS
  } >dram0_0_seg :dram0_0_bss_phdr
 /* __stack = 0x3ffc8000; */

-  .text : ALIGN(4)
-  {
-    _stext = .;
-    _text_start = ABSOLUTE(.);
-    *(.UserEnter.text)
-    . = ALIGN(16);
-    *(.DebugExceptionVector.text)
-    . = ALIGN(16);
-    *(.NMIExceptionVector.text)
-    . = ALIGN(16);
-    *(.KernelExceptionVector.text)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    . = ALIGN(16);
-    *(.UserExceptionVector.text)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    . = ALIGN(16);
-    *(.DoubleExceptionVector.text)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    LONG(0)
-    . = ALIGN (16);
-    *(.entry.text)
-    *(.init.literal)
-    *(.init)
-    *libfreertos.a:(.literal .text .literal.* .text.*)
-    *(.literal .text .stub .gnu.warning .gnu.linkonce.literal.* .gnu.linkonce.t.*.literal .gnu.linkonce.t.*)
-    *(.fini.literal)
-    *(.fini)
-    *(.gnu.version)
-    _text_end = ABSOLUTE(.);
-    _etext = .;
-  } >iram1_0_seg :iram1_0_phdr
-
  .lit4 : ALIGN(4)
  {
    _lit4_start = ABSOLUTE(.);
@ -200,13 +213,6 @@ SECTIONS
    _lit4_end = ABSOLUTE(.);
  } >iram1_0_seg :iram1_0_phdr

-  .irom0.text : ALIGN(4)
-  {
-    _irom0_text_start = ABSOLUTE(.);
-    *(.irom0.literal .irom.literal .irom.text.literal .irom0.text .irom.text)
-    *(.literal.* .text.*)
-    _irom0_text_end = ABSOLUTE(.);
-  } >irom0_0_seg :irom0_0_phdr
 }

 /* get ROM code address */
--- a/lib/libcirom.a
+++ b/lib/libcirom.a
--- a/lib/libfreertos.a
+++ b/lib/libfreertos.a
--- a/lib/libjson.a
+++ b/lib/libjson.a
--- a/lib/liblwip.a
+++ b/lib/liblwip.a
--- a/lib/libmain.a
+++ b/lib/libmain.a
--- a/lib/libmbedtls.a
+++ b/lib/libmbedtls.a
--- a/lib/libnet80211.a
+++ b/lib/libnet80211.a
--- a/lib/libnopoll.a
+++ b/lib/libnopoll.a
--- a/lib/libopenssl.a
+++ b/lib/libopenssl.a
--- a/lib/libspiffs.a
+++ b/lib/libspiffs.a
--- a/lib/libssl.a
+++ b/lib/libssl.a
--- a/lib/libwpa.a
+++ b/lib/libwpa.a
--- a/lib/libwps.a
+++ b/lib/libwps.a
--- a/third_party/lwip/core/dhcp.c
+++ b/third_party/lwip/core/dhcp.c
@ -774,6 +774,35 @@ dhcp_inform(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));

+    /**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+#if LWIP_NETIF_HOSTNAME
+    dhcp_option_hostname(&dhcp, netif);
+#endif /* LWIP_NETIF_HOSTNAME */
+
+    dhcp_option(&dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(&dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(&dhcp, DHCP_OPTION_VSN);
+
+#else
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 4/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+#endif
+
    dhcp_option_trailer(&dhcp);

    pbuf_realloc(dhcp.p_out, sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + dhcp.options_out_len);
@ -877,6 +906,35 @@ dhcp_decline(struct netif *netif)
    dhcp_option(dhcp, DHCP_OPTION_REQUESTED_IP, 4);
    dhcp_option_long(dhcp, ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr)));

+    /**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+#if LWIP_NETIF_HOSTNAME
+    dhcp_option_hostname(dhcp, netif);
+#endif /* LWIP_NETIF_HOSTNAME */
+
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_VSN);
+
+#else
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 4/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+#endif
+
    dhcp_option_trailer(dhcp);
    /* resize pbuf to reflect true size of options */
    pbuf_realloc(dhcp->p_out, sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + dhcp->options_out_len);
@ -1118,6 +1176,31 @@ dhcp_renew(struct netif *netif)
 #if LWIP_NETIF_HOSTNAME
    dhcp_option_hostname(dhcp, netif);
 #endif /* LWIP_NETIF_HOSTNAME */
+    /**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_VSN);
+
+#else
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 4/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+#endif

    /* append DHCP message trailer */
    dhcp_option_trailer(dhcp);
@ -1162,6 +1245,30 @@ dhcp_rebind(struct netif *netif)
 #if LWIP_NETIF_HOSTNAME
    dhcp_option_hostname(dhcp, netif);
 #endif /* LWIP_NETIF_HOSTNAME */
+    /**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_VSN);
+
+#else
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 4/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+#endif

 #if 0
    dhcp_option(dhcp, DHCP_OPTION_REQUESTED_IP, 4);
@ -1209,8 +1316,34 @@ dhcp_reboot(struct netif *netif)
    dhcp_option(dhcp, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN);
    dhcp_option_short(dhcp, 576);

-    dhcp_option(dhcp, DHCP_OPTION_REQUESTED_IP, 4);
-    dhcp_option_long(dhcp, ntohl(ip4_addr_get_u32(&dhcp->offered_ip_addr)));
+    /**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+#if LWIP_NETIF_HOSTNAME
+    dhcp_option_hostname(dhcp, netif);
+#endif /* LWIP_NETIF_HOSTNAME */
+
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_VSN);
+
+#else
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 4/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+#endif

    dhcp_option_trailer(dhcp);

@ -1262,6 +1395,34 @@ dhcp_release(struct netif *netif)
  /* create and initialize the DHCP message header */
  result = dhcp_create_msg(netif, dhcp, DHCP_RELEASE);
  if (result == ERR_OK) {
+	/**add options for support more router by liuHan**/
+#ifdef LWIP_ESP8266
+    LWIP_DEBUGF(DHCP_DEBUG | LWIP_DBG_TRACE, ("dhcp_release: making request\n"));
+
+    dhcp_option(dhcp, DHCP_OPTION_MAX_MSG_SIZE, DHCP_OPTION_MAX_MSG_SIZE_LEN);
+    dhcp_option_short(dhcp, DHCP_MAX_MSG_LEN(netif));
+
+#if LWIP_NETIF_HOSTNAME
+    dhcp_option_hostname(dhcp, netif);
+#endif /* LWIP_NETIF_HOSTNAME */
+
+    dhcp_option(dhcp, DHCP_OPTION_PARAMETER_REQUEST_LIST, 12/*num options*/);
+    dhcp_option_byte(dhcp, DHCP_OPTION_SUBNET_MASK);
+    dhcp_option_byte(dhcp, DHCP_OPTION_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_BROADCAST);
+    dhcp_option_byte(dhcp, DHCP_OPTION_DNS_SERVER);
+
+    dhcp_option_byte(dhcp, DHCP_OPTION_DOMAIN_NAME);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TINT);
+    dhcp_option_byte(dhcp, DHCP_OPTION_NB_TIS);
+    dhcp_option_byte(dhcp, DHCP_OPTION_PRD);
+    dhcp_option_byte(dhcp, DHCP_OPTION_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_CLASSLESS_STATIC_ROUTER);
+    dhcp_option_byte(dhcp, DHCP_OPTION_VSN);
+
+#endif
+
    dhcp_option_trailer(dhcp);

    pbuf_realloc(dhcp->p_out, sizeof(struct dhcp_msg) - DHCP_OPTIONS_LEN + dhcp->options_out_len);
--- a/third_party/lwip/netif/ethernetif.c
+++ b/third_party/lwip/netif/ethernetif.c
@ -73,8 +73,6 @@ low_level_init(struct netif *netif)
  /* set MAC hardware address length */
  netif->hwaddr_len = ETHARP_HWADDR_LEN;

-  /* set MAC hardware address */
-
  /* maximum transfer unit */
  netif->mtu = 1500;
  
@ -158,23 +156,23 @@ ethernetif_input(struct netif *netif, struct pbuf *p)
  struct ethernetif *ethernetif;
  struct eth_hdr *ethhdr;

+  if(p == NULL)
+    goto _exit;

-if(p == NULL)
-	goto _exit;
-
-
-if(p->payload == NULL)
-{
+  if(p->payload == NULL) {
    pbuf_free(p);
-	goto _exit;
-}
+    goto _exit;
+  }

+  if(netif == NULL) {
+    goto _exit;
+  }

-if(netif == NULL)
-{
-	goto _exit;
-}
-
+  if (!(netif->flags & NETIF_FLAG_LINK_UP)) {
+    pbuf_free(p);
+    p = NULL;
+    goto _exit;
+  }

  ethernetif = netif->state;

@ -224,6 +222,16 @@ err_t ethernetif_init(struct netif *netif)
 {
  LWIP_ASSERT("netif != NULL", (netif != NULL));

+  u8_t mac[NETIF_MAX_HWADDR_LEN];
+
+  /* set MAC hardware address */
+  if ((struct netif *)wifi_get_netif(STATION_IF) == netif) {
+    wifi_get_macaddr(STATION_IF, mac);
+  } else {
+    wifi_get_macaddr(SOFTAP_IF, mac);
+  }
+  memcpy(netif->hwaddr, mac, NETIF_MAX_HWADDR_LEN);
+
 #if LWIP_NETIF_HOSTNAME
  if ((struct netif *)wifi_get_netif(STATION_IF) == netif) {
      if (default_hostname == 1) {
@ -256,6 +264,9 @@ err_t ethernetif_init(struct netif *netif)
 #endif /* LWIP_IPV6 */
  netif->linkoutput = low_level_output;

+  extern void wifi_station_dhcpc_event(void);
+  netif->dhcp_event = wifi_station_dhcpc_event;
+
  /* initialize the hardware */
  low_level_init(netif);