gcc/libgo/runtime/go-main.c
Ian Lance Taylor c130ab6aad runtime: set up g early
runtime.throw needs a g to work properly. Set up g early, to
    ensure that if something goes wrong in the runtime startup (e.g.
    runtime.check fails), the program terminates in a reasonable way.
    
    Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/176657

From-SVN: r271088
2019-05-11 01:12:37 +00:00

63 lines
1.3 KiB
C

/* go-main.c -- the main function for a Go program.
Copyright 2009 The Go Authors. All rights reserved.
Use of this source code is governed by a BSD-style
license that can be found in the LICENSE file. */
#include "config.h"
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#ifdef HAVE_FPU_CONTROL_H
#include <fpu_control.h>
#endif
#include "runtime.h"
#include "array.h"
#include "arch.h"
#undef int
#undef char
#undef unsigned
/* The main function for a Go program. This records the command line
parameters, calls the real main function, and returns a zero status
if the real main function returns. */
extern char **environ;
/* A copy of _end that a shared library can reasonably refer to. */
uintptr __go_end;
extern byte _end[];
/* The main function. */
int
main (int argc, char **argv)
{
runtime_isarchive = false;
if (runtime_isstarted)
return 0;
runtime_isstarted = true;
if (runtime_iscgo)
setIsCgo ();
__go_end = (uintptr)_end;
runtime_ginit ();
runtime_cpuinit ();
runtime_check ();
runtime_args (argc, (byte **) argv);
setncpu (getproccount ());
setpagesize (getpagesize ());
runtime_sched = runtime_getsched();
runtime_schedinit ();
__go_go ((uintptr)(runtime_main), NULL);
runtime_mstart (runtime_m ());
abort ();
}