1 /* go-main.c -- the main function for a Go program.
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. */
12 #ifdef HAVE_FPU_CONTROL_H
13 #include <fpu_control.h>
18 #include "go-signal.h"
19 #include "go-string.h"
28 /* The main function for a Go program. This records the command line
29 parameters, calls the real main function, and returns a zero status
30 if the real main function returns. */
32 extern char **environ;
34 extern struct __go_open_array Args asm ("libgo_os.os.Args");
36 extern struct __go_open_array Envs asm ("libgo_os.os.Envs");
38 /* These functions are created for the main package. */
39 extern void __go_init_main (void);
40 extern void real_main (void) asm ("main.main");
42 /* The main function. */
45 main (int argc, char **argv)
48 struct __go_string *values;
50 runtime_mallocinit ();
51 runtime_cpuprofinit ();
52 __go_gc_goroutine_init (&argc);
55 Args.__capacity = argc;
56 values = __go_alloc (argc * sizeof (struct __go_string));
57 for (i = 0; i < argc; ++i)
59 values[i].__data = (unsigned char *) argv[i];
60 values[i].__length = __builtin_strlen (argv[i]);
62 Args.__values = values;
64 for (i = 0; environ[i] != NULL; ++i)
68 values = __go_alloc (i * sizeof (struct __go_string));
69 for (i = 0; environ[i] != NULL; ++i)
71 values[i].__data = (unsigned char *) environ[i];
72 values[i].__length = __builtin_strlen (environ[i]);
74 Envs.__values = values;
78 #if defined(HAVE_SRANDOM)
79 srandom ((unsigned int) time (NULL));
81 srand ((unsigned int) time (NULL));