119 lines
3.7 KiB
C++
119 lines
3.7 KiB
C++
/*
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* Copyright (C) 2013 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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// This file perpetuates the mistakes of the past, but only for 32-bit targets.
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#if !defined(__LP64__)
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#include <ctype.h>
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#include <inttypes.h>
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#include <pthread.h>
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#include <stdlib.h>
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#include <sys/resource.h>
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#include <sys/time.h>
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <unistd.h>
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// These were accidentally declared in <unistd.h> because we stupidly used to inline
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// getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps.
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extern "C" {
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unsigned int __page_size = PAGE_SIZE;
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unsigned int __page_shift = 12;
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}
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// TODO: remove this backward compatibility hack (for jb-mr1 strace binaries).
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extern "C" pid_t __wait4(pid_t pid, int* status, int options, struct rusage* rusage) {
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return wait4(pid, status, options, rusage);
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}
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// TODO: does anything still need this?
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extern "C" int __open() {
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abort();
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}
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// TODO: does anything still need this?
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extern "C" void** __get_tls() {
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#include "private/__get_tls.h"
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return __get_tls();
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}
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// This non-standard function was in our <string.h> for some reason.
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extern "C" void memswap(void* m1, void* m2, size_t n) {
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char* p = reinterpret_cast<char*>(m1);
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char* p_end = p + n;
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char* q = reinterpret_cast<char*>(m2);
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while (p < p_end) {
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char tmp = *p;
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*p = *q;
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*q = tmp;
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p++;
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q++;
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}
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}
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extern "C" int pthread_attr_setstackaddr(pthread_attr_t*, void*) {
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// This was removed from POSIX.1-2008, and is not implemented on bionic.
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// Needed for ABI compatibility with the NDK.
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return ENOSYS;
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}
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extern "C" int pthread_attr_getstackaddr(const pthread_attr_t* attr, void** stack_addr) {
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// This was removed from POSIX.1-2008.
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// Needed for ABI compatibility with the NDK.
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*stack_addr = (char*)attr->stack_base + attr->stack_size;
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return 0;
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}
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// Non-standard cruft that should only ever have been in system/core/toolbox.
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extern "C" char* strtotimeval(const char* str, struct timeval* ts) {
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char* s;
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ts->tv_sec = strtoumax(str, &s, 10);
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long fractional_seconds = 0;
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if (*s == '.') {
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s++;
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int count = 0;
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// Read up to 6 digits (microseconds).
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while (*s && isdigit(*s)) {
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if (++count < 7) {
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fractional_seconds = fractional_seconds*10 + (*s - '0');
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}
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s++;
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}
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for (; count < 6; count++) {
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fractional_seconds *= 10;
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}
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}
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ts->tv_usec = fractional_seconds;
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return s;
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}
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#endif
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