get rid of all compile warnings

lib/AliyunIoTSDK/src/AliyunIoTSDK.cpp

@@ -187,7 +187,7 @@ void AliyunIoTSDK::loop() {
 
 void AliyunIoTSDK::sendEvent(const char *eventId, const char *param) {
     char topicKey[156];
-    sprintf(topicKey, "%s/%s/post", 0, eventId);
+    snprintf(topicKey, sizeof(topicKey) - 1, "%d/%s/post", 0, eventId);
     char jsonBuf[1024];
     sprintf(jsonBuf, ALINK_EVENT_BODY_FORMAT, param, eventId);
     Serial.println(jsonBuf);

lib/IRremoteESP8266/src/IRrecv.cpp

@@ -33,13 +33,13 @@ volatile irparams_t irparams;
 irparams_t *irparams_save;  // A copy of the interrupt state while decoding.
 
 #ifndef UNIT_TEST
-static void ICACHE_RAM_ATTR read_timeout(void *arg __attribute__((unused))) {
+static void IRAM_ATTR read_timeout(void *arg __attribute__((unused))) {
   os_intr_lock();
   if (irparams.rawlen) irparams.rcvstate = kStopState;
   os_intr_unlock();
 }
 
-static void ICACHE_RAM_ATTR gpio_intr() {
+static void IRAM_ATTR gpio_intr() {
   uint32_t now = system_get_time();
   uint32_t gpio_status = GPIO_REG_READ(GPIO_STATUS_ADDRESS);
   static uint32_t start = 0;

lib/RC-Switch/RCSwitch.cpp

@@ -43,7 +43,7 @@
 #if defined(ESP8266)
 // interrupt handler and related code must be in RAM on ESP8266,
 // according to issue #46.
-#define RECEIVE_ATTR ICACHE_RAM_ATTR
+#define RECEIVE_ATTR IRAM_ATTR
 #define VAR_ISR_ATTR
 #elif defined(ESP32)
 #define RECEIVE_ATTR IRAM_ATTR