1 /* go-main.c -- the main function for a Go program.
2 
3    Copyright 2009 The Go Authors. All rights reserved.
4    Use of this source code is governed by a BSD-style
5    license that can be found in the LICENSE file.  */
6 
7 #include "config.h"
8 
9 #include <stdlib.h>
10 #include <time.h>
11 #include <unistd.h>
12 
13 #ifdef HAVE_FPU_CONTROL_H
14 #include <fpu_control.h>
15 #endif
16 
17 #include "runtime.h"
18 #include "go-alloc.h"
19 #include "array.h"
20 #include "arch.h"
21 #include "malloc.h"
22 
23 #undef int
24 #undef char
25 #undef unsigned
26 
27 /* The main function for a Go program.  This records the command line
28    parameters, calls the real main function, and returns a zero status
29    if the real main function returns.  */
30 
31 extern char **environ;
32 
33 /* A copy of _end that a shared library can reasonably refer to.  */
34 uintptr __go_end;
35 
36 extern byte _end[];
37 
38 /* The main function.  */
39 
40 int
main(int argc,char ** argv)41 main (int argc, char **argv)
42 {
43   runtime_isarchive = false;
44 
45   if (runtime_isstarted)
46     return 0;
47   runtime_isstarted = true;
48 
49   __go_end = (uintptr)_end;
50   runtime_check ();
51   runtime_args (argc, (byte **) argv);
52   runtime_osinit ();
53   runtime_schedinit ();
54   __go_go (runtime_main, NULL);
55   runtime_mstart (runtime_m ());
56   abort ();
57 }
58