1 // Copyright 2009 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 #include "libcgo.h" 6 7 /* Stub for calling malloc from Go */ 8 void 9 x_cgo_malloc(void *p) 10 { 11 struct a { 12 long long n; 13 void *ret; 14 } *a = p; 15 16 a->ret = malloc(a->n); 17 if(a->ret == NULL && a->n == 0) 18 a->ret = malloc(1); 19 } 20 21 /* Stub for calling free from Go */ 22 void 23 x_cgo_free(void *p) 24 { 25 struct a { 26 void *arg; 27 } *a = p; 28 29 free(a->arg); 30 } 31 32 /* Stub for creating a new thread */ 33 void 34 x_cgo_thread_start(ThreadStart *arg) 35 { 36 ThreadStart *ts; 37 38 /* Make our own copy that can persist after we return. */ 39 ts = malloc(sizeof *ts); 40 if(ts == nil) { 41 fprintf(stderr, "runtime/cgo: out of memory in thread_start\n"); 42 abort(); 43 } 44 *ts = *arg; 45 46 _cgo_sys_thread_start(ts); /* OS-dependent half */ 47 } 48
