1 /*- 2 * Copyright (c) 2013 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Matt Thomas of 3am Software Foundry. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 #include <sys/cdefs.h> 30 __RCSID("$NetBSD: crtbegin.c,v 1.6 2013/11/29 23:00:48 joerg Exp $"); 31 32 #include "crtbegin.h" 33 34 typedef void (*fptr_t)(void); 35 36 __dso_hidden const fptr_t __JCR_LIST__[0] __section(".jcr"); 37 38 __weakref_visible void Jv_RegisterClasses(const fptr_t *) 39 __weak_reference(_Jv_RegisterClasses); 40 41 #if !defined(HAVE_INITFINI_ARRAY) 42 __dso_hidden const fptr_t __CTOR_LIST__[] __section(".ctors") = { 43 (fptr_t) -1, 44 }; 45 __dso_hidden extern const fptr_t __CTOR_LIST_END__[]; 46 #endif 47 48 #ifdef SHARED 49 __dso_hidden void *__dso_handle = &__dso_handle; 50 51 __weakref_visible void cxa_finalize(void *) 52 __weak_reference(__cxa_finalize); 53 #else 54 __dso_hidden void *__dso_handle; 55 #endif 56 57 #if !defined(__ARM_EABI__) 58 __dso_hidden 59 #if !defined(__mips__) 60 const 61 #endif 62 long __EH_FRAME_LIST__[0] __section(".eh_frame"); 63 64 __weakref_visible void register_frame_info(const void *, const void *) 65 __weak_reference(__register_frame_info); 66 __weakref_visible void deregister_frame_info(const void *) 67 __weak_reference(__deregister_frame_info); 68 69 static long dwarf_eh_object[8]; 70 #endif 71 72 static void __do_global_ctors_aux(void) __used; 73 74 static void __section(".text.startup") 75 __do_global_ctors_aux(void) 76 { 77 static unsigned char __initialized; 78 79 if (__initialized) 80 return; 81 82 __initialized = 1; 83 84 #if !defined(__ARM_EABI__) 85 if (register_frame_info) 86 register_frame_info(__EH_FRAME_LIST__, &dwarf_eh_object); 87 #endif 88 89 if (Jv_RegisterClasses && __JCR_LIST__[0] != 0) 90 Jv_RegisterClasses(__JCR_LIST__); 91 92 #if !defined(HAVE_INITFINI_ARRAY) 93 for (const fptr_t *p = __CTOR_LIST_END__; p > __CTOR_LIST__ + 1; ) { 94 (*(*--p))(); 95 } 96 #endif 97 } 98 99 #if !defined(__ARM_EABI__) || defined(SHARED) 100 #if !defined(HAVE_INITFINI_ARRAY) 101 __dso_hidden const fptr_t __DTOR_LIST__[] __section(".dtors") = { 102 (fptr_t) -1, 103 }; 104 __dso_hidden extern const fptr_t __DTOR_LIST_END__[]; 105 #endif 106 107 static void __do_global_dtors_aux(void) __used; 108 109 static void __section(".text.exit") 110 __do_global_dtors_aux(void) 111 { 112 static unsigned char __finished; 113 114 if (__finished) 115 return; 116 117 __finished = 1; 118 119 #ifdef SHARED 120 if (cxa_finalize) 121 (*cxa_finalize)(__dso_handle); 122 #endif 123 124 #if !defined(HAVE_INITFINI_ARRAY) 125 for (const fptr_t *p = __DTOR_LIST__ + 1; p < __DTOR_LIST_END__; ) { 126 (*(*p++))(); 127 } 128 #endif 129 130 #if !defined(__ARM_EABI__) 131 if (deregister_frame_info) 132 deregister_frame_info(__EH_FRAME_LIST__); 133 #endif 134 } 135 #endif /* !__ARM_EABI__ || SHARED */ 136