Merge branch 'feature/c++'

core/cplusplus_operators.cpp

@@ -0,0 +1,25 @@
+/* Part of esp-open-rtos
+ * BSD Licensed as described in the file LICENSE
+ */
+#include <stdio.h>
+#include <stdlib.h>
+
+void *operator new(size_t size)
+{
+    return malloc(size);
+}
+
+void *operator new[](size_t size)
+{
+    return malloc(size);
+}
+
+void operator delete(void * ptr)
+{
+    free(ptr);
+}
+
+void operator delete[](void * ptr)
+{
+    free(ptr);
+}

core/include/common_macros.h

@@ -10,6 +10,8 @@
 #ifndef _COMMON_MACROS_H
 #define _COMMON_MACROS_H
 
+#include <sys/cdefs.h>
+
 #define UNUSED __attributed((unused))
 
 #ifndef BIT
@@ -45,7 +47,11 @@
    Important to note: IROM flash can only be accessed via 32-bit word
    aligned reads. It's up to the user of this attribute to ensure this.
 */
-#define IROM __attribute__((section(".irom0.literal"))) const
+#ifdef	__cplusplus
+    #define IROM __attribute__((section(".irom0.literal")))
+#else
+    #define IROM __attribute__((section(".irom0.literal"))) const
+#endif
 
 #define INLINED inline static __attribute__((always_inline)) __attribute__((unused))
 

core/include/esp/gpio.h

@@ -122,7 +122,7 @@ INLINED void gpio_set_interrupt(const uint8_t gpio_num, const gpio_inttype_t int
 /* Return the interrupt type set for a pin */
 INLINED gpio_inttype_t gpio_get_interrupt(const uint8_t gpio_num)
 {
-    return FIELD2VAL(GPIO_CONF_INTTYPE, GPIO.CONF[gpio_num]);
+    return (gpio_inttype_t)FIELD2VAL(GPIO_CONF_INTTYPE, GPIO.CONF[gpio_num]);
 }
 
 #endif

core/sdk_compat.c

@@ -14,3 +14,18 @@ void IRAM *zalloc(size_t nbytes)
 {
     return calloc(1, nbytes);
 }
+
+extern void (*__init_array_start)(void);
+extern void (*__init_array_end)(void);
+
+/* Do things which should be done as part of the startup code, but aren't.
+
+   Can be replaced with _start() once we have open source startup code.
+*/
+void sdk_compat_initialise()
+{
+    /* Call C++ constructors or C functions marked with __attribute__((constructor)) */
+    void (**p)(void);
+    for ( p = &__init_array_start; p != &__init_array_end; ++p)
+        (*p)();
+}