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/*
* Copyright (C) 2013 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
// This file perpetuates the mistakes of the past, but only for 32-bit targets.
#if !defined(__LP64__)
#include <ctype.h>
#include <inttypes.h>
#include <pthread.h>
#include <stdlib.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
// These were accidentally declared in <unistd.h> because we stupidly used to inline
// getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps.
extern "C" {
unsigned int __page_size = PAGE_SIZE;
unsigned int __page_shift = 12;
}
// TODO: remove this backward compatibility hack (for jb-mr1 strace binaries).
extern "C" pid_t __wait4(pid_t pid, int* status, int options, struct rusage* rusage) {
return wait4(pid, status, options, rusage);
}
// TODO: does anything still need this?
extern "C" int __open() {
abort();
}
// TODO: does anything still need this?
extern "C" void** __get_tls() {
#include "private/__get_tls.h"
return __get_tls();
}
// This non-standard function was in our <string.h> for some reason.
extern "C" void memswap(void* m1, void* m2, size_t n) {
char* p = reinterpret_cast<char*>(m1);
char* p_end = p + n;
char* q = reinterpret_cast<char*>(m2);
while (p < p_end) {
char tmp = *p;
*p = *q;
*q = tmp;
p++;
q++;
}
}
extern "C" int pthread_attr_setstackaddr(pthread_attr_t*, void*) {
// This was removed from POSIX.1-2008, and is not implemented on bionic.
// Needed for ABI compatibility with the NDK.
return ENOSYS;
}
extern "C" int pthread_attr_getstackaddr(const pthread_attr_t* attr, void** stack_addr) {
// This was removed from POSIX.1-2008.
// Needed for ABI compatibility with the NDK.
*stack_addr = (char*)attr->stack_base + attr->stack_size;
return 0;
}
// Non-standard cruft that should only ever have been in system/core/toolbox.
extern "C" char* strtotimeval(const char* str, struct timeval* ts) {
char* s;
ts->tv_sec = strtoumax(str, &s, 10);
long fractional_seconds = 0;
if (*s == '.') {
s++;
int count = 0;
// Read up to 6 digits (microseconds).
while (*s && isdigit(*s)) {
if (++count < 7) {
fractional_seconds = fractional_seconds*10 + (*s - '0');
}
s++;
}
for (; count < 6; count++) {
fractional_seconds *= 10;
}
}
ts->tv_usec = fractional_seconds;
return s;
}
#endif
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