1 // Copyright (C) 2011 The Android Open Source Project 2 // All rights reserved. 3 // 4 // Redistribution and use in source and binary forms, with or without 5 // modification, are permitted provided that the following conditions 6 // are met: 7 // 1. Redistributions of source code must retain the above copyright 8 // notice, this list of conditions and the following disclaimer. 9 // 2. Redistributions in binary form must reproduce the above copyright 10 // notice, this list of conditions and the following disclaimer in the 11 // documentation and/or other materials provided with the distribution. 12 // 3. Neither the name of the project nor the names of its contributors 13 // may be used to endorse or promote products derived from this software 14 // without specific prior written permission. 15 // 16 // THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 17 // ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 // IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 // ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 20 // FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 // DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 // OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 // HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 // LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 // OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 // SUCH DAMAGE. 27 // 28 29 #include <gabixx_config.h> 30 #include <stdlib.h> 31 #include <new> 32 33 using std::new_handler; 34 namespace { 35 new_handler cur_handler; 36 } 37 38 namespace std { 39 40 #if !defined(LIBCXXABI) 41 const nothrow_t nothrow = {}; 42 #endif 43 44 bad_alloc::bad_alloc() _GABIXX_NOEXCEPT { 45 } 46 47 bad_alloc::~bad_alloc() _GABIXX_NOEXCEPT { 48 } 49 50 const char* bad_alloc::what() const _GABIXX_NOEXCEPT { 51 return "std::bad_alloc"; 52 } 53 54 bad_array_new_length::bad_array_new_length() _GABIXX_NOEXCEPT 55 { 56 } 57 58 bad_array_new_length::~bad_array_new_length() _GABIXX_NOEXCEPT 59 { 60 } 61 62 const char* 63 bad_array_new_length::what() const _GABIXX_NOEXCEPT 64 { 65 return "bad_array_new_length"; 66 } 67 68 #if __cplusplus > 201103L 69 // C++14 stuff 70 bad_array_length::bad_array_length() _GABIXX_NOEXCEPT 71 { 72 } 73 74 bad_array_length::~bad_array_length() _GABIXX_NOEXCEPT 75 { 76 } 77 78 const char* 79 bad_array_length::what() const _GABIXX_NOEXCEPT 80 { 81 return "bad_array_length"; 82 } 83 #endif 84 85 new_handler set_new_handler(new_handler next_handler) _GABIXX_NOEXCEPT { 86 return __gabixx_sync_swap(&cur_handler, next_handler); 87 } 88 89 new_handler get_new_handler() _GABIXX_NOEXCEPT { 90 return __gabixx_sync_load(&cur_handler); 91 } 92 93 } // namespace std 94 95 _GABIXX_WEAK 96 void* operator new(std::size_t size) throw(std::bad_alloc) { 97 void* space; 98 do { 99 space = malloc(size); 100 if (space) { 101 return space; 102 } 103 new_handler handler = std::get_new_handler(); 104 if (handler == NULL) { 105 throw std::bad_alloc(); 106 } 107 handler(); 108 } while (space == 0); 109 __builtin_unreachable(); 110 } 111 112 _GABIXX_WEAK 113 void* operator new(std::size_t size, const std::nothrow_t& no) 114 _GABIXX_NOEXCEPT { 115 try { 116 return ::operator new(size); 117 } catch (const std::bad_alloc&) { 118 return 0; 119 } 120 } 121 122 _GABIXX_WEAK 123 void* operator new[](std::size_t size) throw(std::bad_alloc) { 124 return ::operator new(size); 125 } 126 127 _GABIXX_WEAK 128 void* operator new[](std::size_t size, const std::nothrow_t& no) 129 _GABIXX_NOEXCEPT { 130 return ::operator new(size, no); 131 } 132 133
