C++ init

arm_chainloader/main.c

@@ -2,6 +2,27 @@
 #include <chainloader.h>
 #include <hardware.h>
 
-void main() {
+extern uintptr_t* __init_array_start;
-	printf("%s: arm_chainloader started on ARM, continuing boot from here ...\n", __FUNCTION__);
+extern uintptr_t* __init_array_end;
+
+#define logf(fmt, ...) printf("[startup::%s]: " fmt, __FUNCTION__, ##__VA_ARGS__);
+
+void cxx_init() {
+	unsigned ctor_count = (unsigned)(&__init_array_end - &__init_array_start);
+	void (*static_ctor)();
+
+	logf("calling %d static constructors (0x%X - 0x%X) ...\n", ctor_count, &__init_array_start, &__init_array_end);
+
+	for (unsigned i = 0; i < ctor_count; i++) {
+		uintptr_t* ptr = (((uintptr_t*)&__init_array_start) + i);
+		static_ctor = (void*)*ptr;
+		static_ctor();
+	}
+}
+
+void main() {
+	logf("started on ARM, continuing boot from here ...\n", __FUNCTION__);
+
+	/* c++ runtime */
+	cxx_init();
 }