7e20117a36
Now that the feature guarded by this flag has landed in Linux 5.10 we no longer need the flag, so we can remove it. Bug: 135772972 Change-Id: I02fa50848cbd0486c23c8a229bb8f1ab5dd5a56f
116 lines
3.6 KiB
C++
116 lines
3.6 KiB
C++
/*
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* Copyright (C) 2019 The Android Open Source Project
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <private/bionic_ifuncs.h>
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#include <stddef.h>
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#include <sys/auxv.h>
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extern "C" {
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typedef void* memchr_func(const void*, int, size_t);
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DEFINE_IFUNC_FOR(memchr) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(memchr_func, __memchr_aarch64_mte);
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} else {
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RETURN_FUNC(memchr_func, __memchr_aarch64);
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}
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}
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typedef int stpcpy_func(char*, const char*);
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DEFINE_IFUNC_FOR(stpcpy) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(stpcpy_func, __stpcpy_aarch64_mte);
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} else {
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RETURN_FUNC(stpcpy_func, __stpcpy_aarch64);
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}
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}
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typedef char* strchr_func(const char*, int);
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DEFINE_IFUNC_FOR(strchr) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strchr_func, __strchr_aarch64_mte);
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} else {
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RETURN_FUNC(strchr_func, __strchr_aarch64);
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}
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}
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typedef char* strchrnul_func(const char*, int);
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DEFINE_IFUNC_FOR(strchrnul) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strchrnul_func, __strchrnul_aarch64_mte);
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} else {
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RETURN_FUNC(strchrnul_func, __strchrnul_aarch64);
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}
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}
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typedef int strcmp_func(const char*, const char*);
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DEFINE_IFUNC_FOR(strcmp) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strcmp_func, __strcmp_aarch64_mte);
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} else {
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RETURN_FUNC(strcmp_func, __strcmp_aarch64);
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}
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}
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typedef int strcpy_func(char*, const char*);
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DEFINE_IFUNC_FOR(strcpy) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strcpy_func, __strcpy_aarch64_mte);
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} else {
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RETURN_FUNC(strcpy_func, __strcpy_aarch64);
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}
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}
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typedef size_t strlen_func(const char*);
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DEFINE_IFUNC_FOR(strlen) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strlen_func, __strlen_aarch64_mte);
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} else {
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RETURN_FUNC(strlen_func, __strlen_aarch64);
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}
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}
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typedef int strncmp_func(const char*, const char*, int);
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DEFINE_IFUNC_FOR(strncmp) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strncmp_func, __strncmp_aarch64_mte);
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} else {
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RETURN_FUNC(strncmp_func, __strncmp_aarch64);
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}
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}
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typedef char* strrchr_func(const char*, int);
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DEFINE_IFUNC_FOR(strrchr) {
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if (arg->_hwcap2 & HWCAP2_MTE) {
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RETURN_FUNC(strrchr_func, __strrchr_aarch64_mte);
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} else {
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RETURN_FUNC(strrchr_func, __strrchr_aarch64);
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}
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}
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} // extern "C"
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