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1 /* go-main.c -- the main function for a Go program.
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2
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3 Copyright 2009 The Go Authors. All rights reserved.
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4 Use of this source code is governed by a BSD-style
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5 license that can be found in the LICENSE file. */
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6
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7 #include "config.h"
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8
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9 #include <stdlib.h>
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10 #include <time.h>
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11 #include <unistd.h>
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12
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13 #ifdef HAVE_FPU_CONTROL_H
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14 #include <fpu_control.h>
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15 #endif
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16
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17 #include "runtime.h"
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18 #include "array.h"
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19 #include "arch.h"
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20
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21 #undef int
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22 #undef char
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23 #undef unsigned
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24
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25 /* The main function for a Go program. This records the command line
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26 parameters, calls the real main function, and returns a zero status
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27 if the real main function returns. */
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28
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29 extern char **environ;
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30
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31 /* A copy of _end that a shared library can reasonably refer to. */
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32 uintptr __go_end;
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33
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34 extern byte _end[];
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35
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36 /* The main function. */
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37
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38 int
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39 main (int argc, char **argv)
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40 {
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41 runtime_isarchive = false;
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42
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43 if (runtime_isstarted)
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44 return 0;
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45 runtime_isstarted = true;
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46
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47 if (runtime_iscgo)
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48 setIsCgo ();
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49
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50 __go_end = (uintptr)_end;
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51 runtime_cpuinit ();
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52 runtime_check ();
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53 runtime_args (argc, (byte **) argv);
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54 setncpu (getproccount ());
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55 setpagesize (getpagesize ());
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56 runtime_sched = runtime_getsched();
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57 runtime_schedinit ();
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58 __go_go (runtime_main, NULL);
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59 runtime_mstart (runtime_m ());
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60 abort ();
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61 }
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