zig/lib/libc/wasi/libc-bottom-half/crt/crt1-command.c
2021-05-20 16:54:00 +02:00

19 lines
602 B
C
Vendored

#include <wasi/api.h>
#include <stdlib.h>
extern void __wasm_call_ctors(void);
extern int __original_main(void);
extern void __wasm_call_dtors(void);
__attribute__((export_name("_start")))
void _start(void) {
// Call `__original_main` which will either be the application's zero-argument
// `__original_main` function or a libc routine which calls `__main_void`.
// TODO: Call `main` directly once we no longer have to support old compilers.
int r = __original_main();
// If main exited successfully, just return, otherwise call `exit`.
if (r != 0) {
exit(r);
}
}