1 /* libunwind - a platform-independent unwind library 2 Copyright (C) 2012 Tommi Rantala <tt.rantala (at) gmail.com> 3 Copyright (C) 2013 Linaro Limited 4 5 This file is part of libunwind. 6 7 Permission is hereby granted, free of charge, to any person obtaining 8 a copy of this software and associated documentation files (the 9 "Software"), to deal in the Software without restriction, including 10 without limitation the rights to use, copy, modify, merge, publish, 11 distribute, sublicense, and/or sell copies of the Software, and to 12 permit persons to whom the Software is furnished to do so, subject to 13 the following conditions: 14 15 The above copyright notice and this permission notice shall be 16 included in all copies or substantial portions of the Software. 17 18 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 19 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 21 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 22 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 23 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 24 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ 25 26 #include <string.h> 27 #include <stdlib.h> 28 29 #include "unwind_i.h" 30 31 PROTECTED unw_addr_space_t 32 unw_create_addr_space (unw_accessors_t *a, int byte_order) 33 { 34 #ifdef UNW_LOCAL_ONLY 35 return NULL; 36 #else 37 unw_addr_space_t as; 38 39 /* AArch64 supports little-endian and big-endian. */ 40 if (byte_order != 0 && byte_order != __LITTLE_ENDIAN 41 && byte_order != __BIG_ENDIAN) 42 return NULL; 43 44 as = malloc (sizeof (*as)); 45 if (!as) 46 return NULL; 47 48 memset (as, 0, sizeof (*as)); 49 50 as->acc = *a; 51 52 /* Default to little-endian for AArch64. */ 53 if (byte_order == 0 || byte_order == __LITTLE_ENDIAN) 54 as->big_endian = 0; 55 else 56 as->big_endian = 1; 57 58 return as; 59 #endif 60 } 61
