LibC: Tidy up _start a bit and rename compilation unit to "crt0"

1 files changed, 38 insertions, 0 deletions

diff --git a/LibC/crt0.cpp b/LibC/crt0.cpp
new file mode 100644
index 0000000000..ab6a3ebfe2
--- /dev/null
+++ b/LibC/crt0.cpp
@@ -0,0 +1,38 @@
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+extern "C" {
+
+int main(int, char**);
+
+int errno;
+char** environ;
+
+void __malloc_init();
+void __stdio_init();
+
+int _start(int argc, char** argv, char** env)
+{
+    errno = 0;
+    environ = env;
+
+    __stdio_init();
+    __malloc_init();
+
+    int status = main(argc, argv);
+
+    fflush(stdout);
+    fflush(stderr);
+
+    exit(status);
+
+    return 20150614;
+}
+
+[[noreturn]] void __cxa_pure_virtual()
+{
+    assert(false);
+}
+
+}