operator new: no exception without need for std::nothrow

cores/esp8266/Arduino.h

@@ -33,6 +33,33 @@ extern "C" {
 #include <string.h>
 #include <math.h>
 
+#if defined(__cplusplus) \
+ && !defined(__cpp_exceptions) \
+ && !defined(_NEWHACK) \
+ && !defined(CORE_MOCK)
+// this is a hack working with gcc4.8
+// Overload operator new so it can return nullptr instead of throwing an
+// exception without (std::nothrow)`
+// Requirements: (or the constructor is called even on nullptr)
+// - "noexcept" is needed
+// - "#include <new>" must not be done *before* these definitions
+#define _NEWHACK
+#if defined(_NEW) && !defined(_ARDUINO_HIDE_NEWHACK_WARNING)
+#warning Arduino.h must be included before other c++ include files
+#endif
+#include <bits/c++config.h>
+extern "C" void* _malloc4newabi (size_t size);
+extern "C++" inline void* operator new (std::size_t size) noexcept
+{
+    return _malloc4newabi(size);
+}
+extern "C++" inline void* operator new [] (std::size_t size) noexcept
+{
+    return _malloc4newabi(size);
+}
+#include <new>
+#endif // _NEWHACK
+
 #include "stdlib_noniso.h"
 #include "binary.h"
 #include "esp8266_peri.h"

cores/esp8266/FS.cpp

@@ -18,6 +18,7 @@
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
+#include "Arduino.h"
 #include "FS.h"
 #include "FSImpl.h"
 

cores/esp8266/FunctionalInterrupt.cpp

@@ -1,6 +1,6 @@
+#include <Arduino.h>
 #include <FunctionalInterrupt.h>
 #include <Schedule.h>
-#include "Arduino.h"
 
 // Duplicate typedefs from core_esp8266_wiring_digital_c
 typedef void (*voidFuncPtr)(void);

cores/esp8266/Schedule.cpp

@@ -1,6 +1,7 @@
 
 #include <assert.h>
 
+#include "Arduino.h"
 #include "Schedule.h"
 #include "PolledTimeout.h"
 #include "interrupts.h"

cores/esp8266/Schedule.h

@@ -1,6 +1,7 @@
 #ifndef ESP_SCHEDULE_H
 #define ESP_SCHEDULE_H
 
+#include <Arduino.h>
 #include <functional>
 
 #define SCHEDULED_FN_MAX_COUNT 32

cores/esp8266/abi.cpp

@@ -68,5 +68,19 @@ extern "C" void __cxa_guard_abort(__guard* pg)
     xt_wsr_ps(reinterpret_cast<guard_t*>(pg)->ps);
 }
 
+// Debugging helper, last allocation which returned NULL
+extern void *umm_last_fail_alloc_addr;
+extern int umm_last_fail_alloc_size;
+
+void* _malloc4newabi (size_t size)
+{
+    void* ret = malloc(size);
+    if (0 != size && 0 == ret) {
+        umm_last_fail_alloc_addr = __builtin_return_address(0);
+        umm_last_fail_alloc_size = size;
+    }
+    return ret;
+}
+
 // TODO: rebuild windows toolchain to make this unnecessary:
 void* __dso_handle;

cores/esp8266/spiffs_api.cpp

@@ -21,6 +21,7 @@
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
+#include "Arduino.h"
 #include "spiffs_api.h"
 
 using namespace fs;

libraries/ArduinoOTA/ArduinoOTA.cpp

@@ -1,6 +1,7 @@
 #ifndef LWIP_OPEN_SRC
 #define LWIP_OPEN_SRC
 #endif
+#include <Arduino.h>
 #include <functional>
 #include <WiFiUdp.h>
 #include "ArduinoOTA.h"

libraries/ESP8266LLMNR/ESP8266LLMNR.cpp

@@ -36,8 +36,8 @@
  */
 
 #include <debug.h>
-#include <functional>
 #include <ESP8266LLMNR.h>
+#include <functional>
 #include <WiFiUdp.h>
 
 extern "C" {

libraries/ESP8266WiFi/src/BearSSLHelpers.cpp

@@ -20,13 +20,14 @@
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
 
+#include <Arduino.h>
+
 #include <memory>
 #include <vector>
 #include <bearssl/bearssl.h>
 #include <pgmspace.h>
 #include <stdlib.h>
 #include <string.h>
-#include <Arduino.h>
 #include <StackThunk.h>
 #include "BearSSLHelpers.h"
 

libraries/ESP8266WiFi/src/ESP8266WiFi.h

@@ -22,6 +22,8 @@
 #ifndef WiFi_h
 #define WiFi_h
 
+#include <Arduino.h>
+
 #include <stdint.h>
 
 extern "C" {

libraries/ESP8266WiFi/src/ESP8266WiFiAP.cpp

@@ -22,6 +22,7 @@
 
  */
 
+#include <Arduino.h>
 #include "ESP8266WiFi.h"
 #include "ESP8266WiFiGeneric.h"
 #include "ESP8266WiFiAP.h"

libraries/ESP8266WiFi/src/ESP8266WiFiGeneric.cpp

@@ -22,6 +22,8 @@
 
  */
 
+#include <Arduino.h>
+
 #include <list>
 #include <string.h>
 #include "ESP8266WiFi.h"

libraries/ESP8266WiFi/src/ESP8266WiFiSTA-WPS.cpp

@@ -22,6 +22,7 @@
 
  */
 
+#include <Arduino.h>
 
 #include "ESP8266WiFi.h"
 #include "ESP8266WiFiGeneric.h"

libraries/ESP8266WiFi/src/WiFiClient.cpp

@@ -22,6 +22,8 @@
 
 #define LWIP_INTERNAL
 
+#include <Arduino.h>
+
 extern "C"
 {
     #include "include/wl_definitions.h"

libraries/ESP8266WiFi/src/WiFiClient.h

@@ -21,8 +21,8 @@
 
 #ifndef wificlient_h
 #define wificlient_h
-#include <memory>
 #include "Arduino.h"
+#include <memory>
 #include "Print.h"
 #include "Client.h"
 #include "IPAddress.h"

libraries/ESP8266WiFi/src/WiFiClientSecureAxTLS.cpp

@@ -22,6 +22,8 @@
 
 #define LWIP_INTERNAL
 
+#include <Arduino.h>
+
 #include "debug.h"
 #include "ESP8266WiFi.h"
 #include "WiFiClientSecure.h"

libraries/ESP8266WiFi/src/WiFiClientSecureBearSSL.cpp

@@ -22,6 +22,8 @@
 
 #define LWIP_INTERNAL
 
+#include <Arduino.h>
+
 #include <list>
 #include <errno.h>
 #include <algorithm>

libraries/ESP8266WiFi/src/WiFiServer.cpp

@@ -28,6 +28,8 @@ extern "C" {
     #include "ets_sys.h"
 }
 
+#include <Arduino.h>
+
 #include "debug.h"
 #include "ESP8266WiFi.h"
 #include "WiFiClient.h"

libraries/ESP8266WiFi/src/WiFiServerSecureBearSSL.cpp

@@ -26,6 +26,8 @@ extern "C" {
 #include "ets_sys.h"
 }
 
+#include <Arduino.h>
+
 #include <StackThunk.h>
 #include "debug.h"
 #include "ESP8266WiFi.h"

libraries/ESP8266WiFi/src/WiFiUdp.cpp

@@ -21,6 +21,8 @@
 */
 
 #define LWIP_INTERNAL
+
+#include <Arduino.h>
 #include <functional>
 
 extern "C"

libraries/ESP8266WiFi/src/WiFiUdp.h

@@ -22,9 +22,14 @@
 #ifndef WIFIUDP_H
 #define WIFIUDP_H
 
+#include <Arduino.h>
+
+#include <functional>
+
 #include <Udp.h>
 #include <include/slist.h>
 
+
 #define UDP_TX_PACKET_MAX_SIZE 8192
 
 class UdpContext;

libraries/ESP8266mDNS/src/LEAmDNS.h

@@ -102,7 +102,6 @@
 #ifndef MDNS_H
 #define MDNS_H
 
-#include <functional>   // for UdpContext.h
 #include "WiFiUdp.h"
 #include "lwip/udp.h"
 #include "debug.h"