1441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project/* Unaligned memory access functionality. 2cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Copyright (C) 2000, 2001, 2002, 2003, 2004, 2005 Red Hat, Inc. 3cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng This file is part of Red Hat elfutils. 4441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Written by Ulrich Drepper <drepper@redhat.com>, 2001. 5441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 6cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is free software; you can redistribute it and/or modify 7cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng it under the terms of the GNU General Public License as published by the 8cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Free Software Foundation; version 2 of the License. 9441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 10cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is distributed in the hope that it will be useful, but 11cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng WITHOUT ANY WARRANTY; without even the implied warranty of 12cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 13cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng General Public License for more details. 14cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 15cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng You should have received a copy of the GNU General Public License along 16cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng with Red Hat elfutils; if not, write to the Free Software Foundation, 17cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA. 18cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 19cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng In addition, as a special exception, Red Hat, Inc. gives You the 20cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng additional right to link the code of Red Hat elfutils with code licensed 21cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng under any Open Source Initiative certified open source license 22cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng (http://www.opensource.org/licenses/index.php) which requires the 23cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng distribution of source code with any binary distribution and to 24cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng distribute linked combinations of the two. Non-GPL Code permitted under 25cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng this exception must only link to the code of Red Hat elfutils through 26cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng those well defined interfaces identified in the file named EXCEPTION 27cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng found in the source code files (the "Approved Interfaces"). The files 28cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng of Non-GPL Code may instantiate templates or use macros or inline 29cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng functions from the Approved Interfaces without causing the resulting 30cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng work to be covered by the GNU General Public License. Only Red Hat, 31cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Inc. may make changes or additions to the list of Approved Interfaces. 32cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat's grant of this exception is conditioned upon your not adding 33cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng any new exceptions. If you wish to add a new Approved Interface or 34cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng exception, please contact Red Hat. You must obey the GNU General Public 35cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng License in all respects for all of the Red Hat elfutils code and other 36cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng code used in conjunction with Red Hat elfutils except the Non-GPL Code 37cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng covered by this exception. If you modify this file, you may extend this 38cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng exception to your version of the file, but you are not obligated to do 39cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng so. If you do not wish to provide this exception without modification, 40cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng you must delete this exception statement from your version and license 41cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng this file solely under the GPL without exception. 42cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 43cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Red Hat elfutils is an included package of the Open Invention Network. 44cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng An included package of the Open Invention Network is a package for which 45cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Open Invention Network licensees cross-license their patents. No patent 46cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng license is granted, either expressly or impliedly, by designation as an 47cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng included package. Should you wish to participate in the Open Invention 48cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng Network licensing program, please visit www.openinventionnetwork.com 49cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng <http://www.openinventionnetwork.com>. */ 50441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 51441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#ifndef _MEMORY_ACCESS_H 52441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define _MEMORY_ACCESS_H 1 53441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 54441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <byteswap.h> 55441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <limits.h> 56441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#include <stdint.h> 57441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 58441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 59441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project/* Number decoding macros. See 7.6 Variable Length Data. */ 60cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 61cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_uleb128_step(var, addr, nth, break) \ 62cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __b = *(addr)++; \ 63cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng var |= (uintmax_t) (__b & 0x7f) << (nth * 7); \ 64cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng if (likely ((__b & 0x80) == 0)) \ 65cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng break 66cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 67cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_uleb128(var, addr) \ 68cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng do { \ 69cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng unsigned char __b; \ 70cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng var = 0; \ 71cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_uleb128_step (var, addr, 0, break); \ 72cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng var = __libdw_get_uleb128 (var, 1, &(addr)); \ 73cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } while (0) 74cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 75cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_uleb128_rest_return(var, i, addrp) \ 76441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project do { \ 77cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng for (; i < 10; ++i) \ 78441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { \ 79cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_uleb128_step (var, *addrp, i, return var); \ 80441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } \ 81cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng /* Other implementations set VALUE to UINT_MAX in this \ 82cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case. So we better do this as well. */ \ 83cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return UINT64_MAX; \ 84441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } while (0) 85441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 86cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng/* The signed case is similar, but we sign-extend the result. */ 87cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 88cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_sleb128_step(var, addr, nth, break) \ 89cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng __b = *(addr)++; \ 90cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng _v |= (uint64_t) (__b & 0x7f) << (nth * 7); \ 91cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng if (likely ((__b & 0x80) == 0)) \ 92441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { \ 93cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng var = (_v << (64 - (nth * 7) - 7) >> (64 - (nth * 7) - 7)); \ 94cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng break; \ 95441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } \ 96cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng else do {} while (0) 97cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 98cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_sleb128(var, addr) \ 99cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng do { \ 100cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng unsigned char __b; \ 101cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng int64_t _v = 0; \ 102cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_sleb128_step (var, addr, 0, break); \ 103cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng var = __libdw_get_sleb128 (_v, 1, &(addr)); \ 104cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng } while (0) 105cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 106cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#define get_sleb128_rest_return(var, i, addrp) \ 107cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng do { \ 108cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng for (; i < 9; ++i) \ 109441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { \ 110cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_sleb128_step (var, *addrp, i, return var); \ 111441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } \ 112cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng /* Other implementations set VALUE to INT_MAX in this \ 113cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng case. So we better do this as well. */ \ 114cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng return INT64_MAX; \ 115441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } while (0) 116441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 117cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#ifdef IS_LIBDW 118cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengextern uint64_t __libdw_get_uleb128 (uint64_t acc, unsigned int i, 119cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const unsigned char **addrp) 120cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng internal_function attribute_hidden; 121cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengextern int64_t __libdw_get_sleb128 (int64_t acc, unsigned int i, 122cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng const unsigned char **addrp) 123cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng internal_function attribute_hidden; 124cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#else 125cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengstatic uint64_t 126cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng__attribute__ ((unused)) 127cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng__libdw_get_uleb128 (uint64_t acc, unsigned int i, const unsigned char **addrp) 128cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 129cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng unsigned char __b; 130cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_uleb128_rest_return (acc, i, addrp); 131cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 132cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Chengstatic int64_t 133cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng__attribute__ ((unused)) 134cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng__libdw_get_sleb128 (int64_t acc, unsigned int i, const unsigned char **addrp) 135cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng{ 136cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng unsigned char __b; 137cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng int64_t _v = acc; 138cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng get_sleb128_rest_return (acc, i, addrp); 139cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng} 140cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng#endif 141cc6695e2684ce93cdf8bd2da63d55d2cf49ff076Ben Cheng 142441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 143441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project/* We use simple memory access functions in case the hardware allows it. 144441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project The caller has to make sure we don't have alias problems. */ 145441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#if ALLOW_UNALIGNED 146441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 147441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_2ubyte_unaligned(Dbg, Addr) \ 148441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 149441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? bswap_16 (*((const uint16_t *) (Addr))) \ 150441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const uint16_t *) (Addr))) 151441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_2sbyte_unaligned(Dbg, Addr) \ 152441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 153441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? (int16_t) bswap_16 (*((const int16_t *) (Addr))) \ 154441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const int16_t *) (Addr))) 155441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 156441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_4ubyte_unaligned_noncvt(Addr) \ 157441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project *((const uint32_t *) (Addr)) 158441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_4ubyte_unaligned(Dbg, Addr) \ 159441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 160441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? bswap_32 (*((const uint32_t *) (Addr))) \ 161441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const uint32_t *) (Addr))) 162441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_4sbyte_unaligned(Dbg, Addr) \ 163441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 164441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? (int32_t) bswap_32 (*((const int32_t *) (Addr))) \ 165441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const int32_t *) (Addr))) 166441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 167441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_8ubyte_unaligned(Dbg, Addr) \ 168441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 169441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? bswap_64 (*((const uint64_t *) (Addr))) \ 170441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const uint64_t *) (Addr))) 171441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project# define read_8sbyte_unaligned(Dbg, Addr) \ 172441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project (unlikely ((Dbg)->other_byte_order) \ 173441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ? (int64_t) bswap_64 (*((const int64_t *) (Addr))) \ 174441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project : *((const int64_t *) (Addr))) 175441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 176441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#else 177441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 178441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectunion unaligned 179441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project { 180441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project void *p; 181441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project uint16_t u2; 182441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project uint32_t u4; 183441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project uint64_t u8; 184441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int16_t s2; 185441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int32_t s4; 186441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project int64_t s8; 187441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project } __attribute__ ((packed)); 188441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 189441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline uint16_t 190441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_2ubyte_unaligned (Dwarf *dbg, const void *p) 191441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 192441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 193441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 194441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return bswap_16 (up->u2); 195441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->u2; 196441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 197441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline int16_t 198441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_2sbyte_unaligned (Dwarf *dbg, const void *p) 199441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 200441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 201441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 202441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return (int16_t) bswap_16 (up->u2); 203441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->s2; 204441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 205441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 206441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline uint32_t 207441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_4ubyte_unaligned_noncvt (const void *p) 208441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 209441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 210441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->u4; 211441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 212441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline uint32_t 213441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_4ubyte_unaligned (Dwarf *dbg, const void *p) 214441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 215441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 216441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 217441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return bswap_32 (up->u4); 218441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->u4; 219441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 220441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline int32_t 221441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_4sbyte_unaligned (Dwarf *dbg, const void *p) 222441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 223441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 224441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 225441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return (int32_t) bswap_32 (up->u4); 226441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->s4; 227441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 228441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 229441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline uint64_t 230441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_8ubyte_unaligned (Dwarf *dbg, const void *p) 231441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 232441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 233441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 234441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return bswap_64 (up->u8); 235441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->u8; 236441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 237441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectstatic inline int64_t 238441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Projectread_8sbyte_unaligned (Dwarf *dbg, const void *p) 239441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project{ 240441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project const union unaligned *up = p; 241441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project if (dbg->other_byte_order) 242441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return (int64_t) bswap_64 (up->u8); 243441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project return up->s8; 244441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project} 245441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 246441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#endif /* allow unaligned */ 247441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 248441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 249441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_2ubyte_unaligned_inc(Dbg, Addr) \ 250441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ uint16_t t_ = read_2ubyte_unaligned (Dbg, Addr); \ 251441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 2); \ 252441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 253441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_2sbyte_unaligned_inc(Dbg, Addr) \ 254441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ int16_t t_ = read_2sbyte_unaligned (Dbg, Addr); \ 255441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 2); \ 256441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 257441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 258441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_4ubyte_unaligned_inc(Dbg, Addr) \ 259441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ uint32_t t_ = read_4ubyte_unaligned (Dbg, Addr); \ 260441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 4); \ 261441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 262441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_4sbyte_unaligned_inc(Dbg, Addr) \ 263441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ int32_t t_ = read_4sbyte_unaligned (Dbg, Addr); \ 264441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 4); \ 265441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 266441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 267441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_8ubyte_unaligned_inc(Dbg, Addr) \ 268441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ uint64_t t_ = read_8ubyte_unaligned (Dbg, Addr); \ 269441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 8); \ 270441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 271441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#define read_8sbyte_unaligned_inc(Dbg, Addr) \ 272441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project ({ int64_t t_ = read_8sbyte_unaligned (Dbg, Addr); \ 273441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project Addr = (__typeof (Addr)) (((uintptr_t) (Addr)) + 8); \ 274441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project t_; }) 275441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project 276441f72d43a9b550baa779fc82f70816da5f74f0eThe Android Open Source Project#endif /* memory-access.h */ 277