1 // New abi Support -*- C++ -*-
3 // Copyright (C) 2000, 2001 Free Software Foundation, Inc.
5 // This file is part of GNU CC.
7 // GNU CC is free software; you can redistribute it and/or modify
8 // it under the terms of the GNU General Public License as published by
9 // the Free Software Foundation; either version 2, or (at your option)
12 // GNU CC is distributed in the hope that it will be useful,
13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 // GNU General Public License for more details.
17 // You should have received a copy of the GNU General Public License
18 // along with GNU CC; see the file COPYING. If not, write to
19 // the Free Software Foundation, 59 Temple Place - Suite 330,
20 // Boston, MA 02111-1307, USA.
22 // As a special exception, you may use this file as part of a free software
23 // library without restriction. Specifically, if other files instantiate
24 // templates or use macros or inline functions from this file, or you compile
25 // this file and link it with other files to produce an executable, this
26 // file does not by itself cause the resulting executable to be covered by
27 // the GNU General Public License. This exception does not however
28 // invalidate any other reasons why the executable file might be covered by
29 // the GNU General Public License.
31 // Written by Nathan Sidwell, Codesourcery LLC, <nathan@codesourcery.com>
36 #include <exception_defines.h>
38 #include "exception_support.h"
44 struct uncatch_exception
46 uncatch_exception () { p = __uncatch_exception (); }
47 ~uncatch_exception () { __recatch_exception (p); }
53 // Allocate and construct array.
55 __cxa_vec_new(std::size_t element_count,
56 std::size_t element_size,
57 std::size_t padding_size,
58 void (*constructor) (void *),
59 void (*destructor) (void *))
61 return __cxa_vec_new2(element_count, element_size, padding_size,
62 constructor, destructor,
63 &operator new[], &operator delete []);
67 __cxa_vec_new2(std::size_t element_count,
68 std::size_t element_size,
69 std::size_t padding_size,
70 void (*constructor) (void *),
71 void (*destructor) (void *),
72 void *(*alloc) (size_t),
73 void (*dealloc) (void *))
75 std::size_t size = element_count * element_size + padding_size;
76 char *base = static_cast <char *> (alloc (size));
81 reinterpret_cast <std::size_t *> (base)[-1] = element_count;
85 __cxa_vec_ctor(base, element_count, element_size,
86 constructor, destructor);
92 dealloc(base - padding_size);
94 __throw_exception_again;
100 __cxa_vec_new3(std::size_t element_count,
101 std::size_t element_size,
102 std::size_t padding_size,
103 void (*constructor) (void *),
104 void (*destructor) (void *),
105 void *(*alloc) (std::size_t),
106 void (*dealloc) (void *, std::size_t))
108 std::size_t size = element_count * element_size + padding_size;
109 char *base = static_cast<char *>(alloc (size));
113 base += padding_size;
114 reinterpret_cast<std::size_t *>(base)[-1] = element_count;
118 __cxa_vec_ctor(base, element_count, element_size,
119 constructor, destructor);
124 uncatch_exception ue;
125 dealloc(base - padding_size, size);
127 __throw_exception_again;
134 __cxa_vec_ctor(void *array_address,
135 std::size_t element_count,
136 std::size_t element_size,
137 void (*constructor) (void *),
138 void (*destructor) (void *))
141 char *ptr = static_cast<char *>(array_address);
146 for (; ix != element_count; ix++, ptr += element_size)
152 uncatch_exception ue;
153 __cxa_vec_dtor(array_address, ix, element_size, destructor);
155 __throw_exception_again;
159 // Construct an array by copying.
161 __cxa_vec_cctor(void *dest_array,
163 std::size_t element_count,
164 std::size_t element_size,
165 void (*constructor) (void *, void *),
166 void (*destructor) (void *))
169 char *dest_ptr = static_cast<char *>(dest_array);
170 char *src_ptr = static_cast<char *>(src_array);
175 for (; ix != element_count;
176 ix++, src_ptr += element_size, dest_ptr += element_size)
177 constructor(dest_ptr, src_ptr);
182 uncatch_exception ue;
183 __cxa_vec_dtor (dest_array, ix, element_size, destructor);
185 __throw_exception_again;
191 __cxa_vec_dtor(void *array_address,
192 std::size_t element_count,
193 std::size_t element_size,
194 void (*destructor) (void *))
198 char *ptr = static_cast<char *>(array_address);
199 std::size_t ix = element_count;
200 bool unwinding = std::uncaught_exception();
202 ptr += element_count * element_size;
215 // [except.ctor]/3 If a destructor called during stack unwinding
216 // exits with an exception, terminate is called.
219 uncatch_exception ue;
220 __cxa_vec_dtor(array_address, ix, element_size, destructor);
222 __throw_exception_again;
227 // Destruct and release array.
229 __cxa_vec_delete(void *array_address,
230 std::size_t element_size,
231 std::size_t padding_size,
232 void (*destructor) (void *))
234 __cxa_vec_delete2(array_address, element_size, padding_size,
236 &operator delete []);
240 __cxa_vec_delete2(void *array_address,
241 std::size_t element_size,
242 std::size_t padding_size,
243 void (*destructor) (void *),
244 void (*dealloc) (void *))
246 char *base = static_cast<char *>(array_address);
250 std::size_t element_count = reinterpret_cast<std::size_t *>(base)[-1];
251 base -= padding_size;
254 __cxa_vec_dtor(array_address, element_count, element_size,
260 uncatch_exception ue;
263 __throw_exception_again;
270 __cxa_vec_delete3(void *array_address,
271 std::size_t element_size,
272 std::size_t padding_size,
273 void (*destructor) (void *),
274 void (*dealloc) (void *, std::size_t))
276 char *base = static_cast <char *> (array_address);
277 std::size_t size = 0;
281 std::size_t element_count = reinterpret_cast<std::size_t *> (base)[-1];
282 base -= padding_size;
283 size = element_count * element_size + padding_size;
286 __cxa_vec_dtor(array_address, element_count, element_size,
292 uncatch_exception ue;
295 __throw_exception_again;
300 } // namespace __cxxabiv1