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lib.c revision 1.1.1.7 
      1 /*	$NetBSD: lib.c,v 1.1.1.7 2021/08/19 11:45:27 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (C) Internet Systems Consortium, Inc. ("ISC")
      5  *
      6  * This Source Code Form is subject to the terms of the Mozilla Public
      7  * License, v. 2.0. If a copy of the MPL was not distributed with this
      8  * file, you can obtain one at https://mozilla.org/MPL/2.0/.
      9  *
     10  * See the COPYRIGHT file distributed with this work for additional
     11  * information regarding copyright ownership.
     12  */
     13 
     14 /*! \file */
     15 
     16 #include <isc/bind9.h>
     17 #include <isc/lib.h>
     18 #include <isc/mem.h>
     19 #include <isc/util.h>
     20 
     21 #include "config.h"
     22 #include "mem_p.h"
     23 #include "tls_p.h"
     24 #include "trampoline_p.h"
     25 
     26 #ifndef ISC_CONSTRUCTOR
     27 #error Either __attribute__((constructor|destructor))__ or DllMain support needed to compile BIND 9.
     28 #endif
     29 
     30 /***
     31  *** Functions
     32  ***/
     33 
     34 void
     35 isc_lib_register(void) {
     36 	isc_bind9 = false;
     37 }
     38 
     39 void
     40 isc__initialize(void) ISC_CONSTRUCTOR;
     41 void
     42 isc__shutdown(void) ISC_DESTRUCTOR;
     43 
     44 void
     45 isc__initialize(void) {
     46 	isc__mem_initialize();
     47 	isc__tls_initialize();
     48 	isc__trampoline_initialize();
     49 }
     50 
     51 void
     52 isc__shutdown(void) {
     53 	isc__trampoline_shutdown();
     54 	isc__tls_shutdown();
     55 	isc__mem_shutdown();
     56 }
     57 
     58 /*
     59  * This is a workaround for situation when libisc is statically linked.  Under
     60  * normal situation, the linker throws out all symbols from compilation unit
     61  * when no symbols are used in the final binary.  This empty function must be
     62  * called at least once from different compilation unit (mem.c in this case).
     63  */
     64 void
     65 isc_enable_constructors() {
     66 	/* do nothing */
     67 }
     68