libgo/misc/cgo/test/callback_c_gc.c

   1 // Copyright 2013 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build gc
   6
   7 #include "_cgo_export.h"
   8 #include <stdint.h>
   9 #include <stdio.h>
  10 #include <stdlib.h>
  11
  12 /* Test calling panic from C.  This is what SWIG does.  */
  13
  14 extern void crosscall2(void (*fn)(void *, int), void *, int);
  15 extern void _cgo_panic(void *, int);
  16 extern void _cgo_allocate(void *, int);
  17
  18 void
  19 callPanic(void)
  20 {
  21         struct { const char *p; } a;
  22         a.p = "panic from C";
  23         crosscall2(_cgo_panic, &a, sizeof a);
  24         *(int*)1 = 1;
  25 }