Merge pull request #325 from Links2004/esp8266

add 2 compiler options from last SDK, __attribute__ format to Print::printf,  link to arduinoWebSockets

tools/sdk/changelog.txt

@@ -1,3 +1,13 @@
+esp_iot_sdk_v1.1.0_15_05_27_p1 Release Note 
+-------------------------------------------
+
+Here is a patch based on SDK_v1.1.0 resolved issues below:
+1. SDK 1.1.0 may boot fail if SPI Flash speed is 80MHz.
+2. Memory Leak in libssl when SSL connection fail.
+3. Update smartconfig, please using it with the latest Espressif APP https://github.com/EspressifApp
+
+Sorry for the inconvenience.
+
 esp_iot_sdk_v1.1.0_15_05_22 Release Note 
 ----------------------------------------
 Resolved Issues（Bugs below are eligible for Bug Bounty Program):

tools/sdk/include/ets_sys.h

@@ -118,7 +118,7 @@ void ets_isr_unmask(int intr);
 void ets_isr_attach(int intr, int_handler_t handler, void *arg);
 void ets_intr_lock();
 void ets_intr_unlock();
-int ets_vsnprintf(char * s, size_t n, const char * format, va_list arg);
-int ets_vprintf(const char * format, va_list arg);
+int ets_vsnprintf(char * s, size_t n, const char * format, va_list arg)  __attribute__ ((format (printf, 3, 0)));
+int ets_vprintf(const char * format, va_list arg) __attribute__ ((format (printf, 1, 0)));
 
 #endif /* _ETS_SYS_H */

tools/sdk/include/user_interface.h

@@ -30,7 +30,7 @@ enum rst_reason {
 	DEEP_SLEEP_AWAKE_FLAG	= 4
 };
 
-struct rst_info{
+struct rst_info {
 	uint32 reason;
 	uint32 exccause;
 	uint32 epc1;

tools/sdk/version

@@ -1 +1 @@
-1.1.0
+1.1.0_15_05_27_p1