[nostalgia/core/gba] Move cstartup.cpp to NostalgiaCore-GBA

src/nostalgia/core/gba/CMakeLists.txt

@@ -1,6 +1,7 @@
 if(NOSTALGIA_BUILD_TYPE STREQUAL "GBA")
 	add_library(
 		NostalgiaCore-GBA
+			cstartup.cpp
 			core.cpp
 			gfx.cpp
 			media.cpp

src/nostalgia/core/gba/cstartup.cpp

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2016 - 2020 gtalent2@gmail.com
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+
+extern void (*__preinit_array_start[]) (void);
+extern void (*__preinit_array_end[]) (void);
+extern void (*__init_array_start[]) (void);
+extern void (*__init_array_end[]) (void);
+
+namespace nostalgia::core {
+
+void initHeap();
+
+}
+
+
+extern "C" {
+
+void __libc_init_array() {
+	auto preInits = __preinit_array_end - __preinit_array_start;
+	for (decltype(preInits) i = 0; i < preInits; i++) {
+		__preinit_array_start[i]();
+	}
+	auto inits = __init_array_end - __init_array_start;
+	for (decltype(inits) i = 0; i < inits; i++) {
+		__preinit_array_start[i]();
+	}
+}
+
+int main(int argc, const char **argv);
+
+int c_start() {
+	const char *args[2] = {"", "rom.oxfs"};
+	nostalgia::core::initHeap();
+	return main(2, args);
+}
+
+}
+
+#pragma GCC diagnostic pop