ndk_cruft.cpp revision 7fb680bfda059746c9bb8939ffaed600eecc3a29
1567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes/* 2567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * Copyright (C) 2013 The Android Open Source Project 3567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * All rights reserved. 4567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * 5567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * Redistribution and use in source and binary forms, with or without 6567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * modification, are permitted provided that the following conditions 7567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * are met: 8567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * * Redistributions of source code must retain the above copyright 9567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * notice, this list of conditions and the following disclaimer. 10567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * * Redistributions in binary form must reproduce the above copyright 11567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * notice, this list of conditions and the following disclaimer in 12567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * the documentation and/or other materials provided with the 13567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * distribution. 14567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * 15567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 18567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 19567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 20567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 21567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 22567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 23567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 24567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 25567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes * SUCH DAMAGE. 27567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes */ 28567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 297fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui// This file perpetuates the mistakes of the past. 30567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 31efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes#include <ctype.h> 32d1ead2af8bf2f6bb801da272e3778f89efefe613Elliott Hughes#include <dirent.h> 33efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes#include <inttypes.h> 34a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle#include <pthread.h> 35205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert#include <signal.h> 36fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes#include <stdio.h> 37567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <stdlib.h> 38891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turner#include <string.h> 39567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <sys/resource.h> 40bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes#include <sys/syscall.h> 41567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <sys/time.h> 42567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <sys/types.h> 43567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <sys/wait.h> 44567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes#include <unistd.h> 45001f8f041bf21c53d4a0b919ef2c859b047bac0aDan Albert#include <wchar.h> 46567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 477fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui#include "private/libc_logging.h" 487fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui 497fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui// The part is only for 32-bit targets. 507fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui#if !defined(__LP64__) 517fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui 52567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes// These were accidentally declared in <unistd.h> because we stupidly used to inline 53567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes// getpagesize() and __getpageshift(). Needed for backwards compatibility with old NDK apps. 54567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughesextern "C" { 55567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes unsigned int __page_size = PAGE_SIZE; 560e44bc3baeb1677e5fbdda87a737b9c508c95132Elliott Hughes unsigned int __page_shift = 12; 57567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes} 58567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 59567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes// TODO: remove this backward compatibility hack (for jb-mr1 strace binaries). 60567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughesextern "C" pid_t __wait4(pid_t pid, int* status, int options, struct rusage* rusage) { 61567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes return wait4(pid, status, options, rusage); 62567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes} 63567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 64062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes// TODO: does anything still need this? 65567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughesextern "C" int __open() { 66567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes abort(); 67567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes} 68567a8de3ca5b4c4f033bfbcdd339a3fd59a76227Elliott Hughes 69062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes// TODO: does anything still need this? 70062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughesextern "C" void** __get_tls() { 71062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes#include "private/__get_tls.h" 72062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes return __get_tls(); 73062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes} 74062092543fdbd6fa2676e4f5b37a15f7bba94332Elliott Hughes 75152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes// This non-standard function was in our <string.h> for some reason. 76152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughesextern "C" void memswap(void* m1, void* m2, size_t n) { 77152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes char* p = reinterpret_cast<char*>(m1); 78152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes char* p_end = p + n; 79152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes char* q = reinterpret_cast<char*>(m2); 80152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes while (p < p_end) { 81152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes char tmp = *p; 82152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes *p = *q; 83152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes *q = tmp; 84152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes p++; 85152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes q++; 86152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes } 87152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes} 88152b9de19ade833ada124390ef153e53d3d3e2edElliott Hughes 89a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravleextern "C" int pthread_attr_setstackaddr(pthread_attr_t*, void*) { 90a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle // This was removed from POSIX.1-2008, and is not implemented on bionic. 91a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle // Needed for ABI compatibility with the NDK. 92a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle return ENOSYS; 93a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle} 94a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle 95a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravleextern "C" int pthread_attr_getstackaddr(const pthread_attr_t* attr, void** stack_addr) { 96a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle // This was removed from POSIX.1-2008. 97a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle // Needed for ABI compatibility with the NDK. 98a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle *stack_addr = (char*)attr->stack_base + attr->stack_size; 99a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle return 0; 100a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle} 101a4eafa6dbc98378f3fa759fec8590871e2b5ae29Calin Juravle 102efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes// Non-standard cruft that should only ever have been in system/core/toolbox. 103efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughesextern "C" char* strtotimeval(const char* str, struct timeval* ts) { 104efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes char* s; 105efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes ts->tv_sec = strtoumax(str, &s, 10); 106efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes 107efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes long fractional_seconds = 0; 108efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes if (*s == '.') { 109efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes s++; 110efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes int count = 0; 111efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes 112efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes // Read up to 6 digits (microseconds). 113efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes while (*s && isdigit(*s)) { 114efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes if (++count < 7) { 115efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes fractional_seconds = fractional_seconds*10 + (*s - '0'); 116efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes } 117efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes s++; 118efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes } 119efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes 120efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes for (; count < 6; count++) { 121efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes fractional_seconds *= 10; 122efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes } 123efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes } 124efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes 125efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes ts->tv_usec = fractional_seconds; 126efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes return s; 127efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes} 128efbdb53f84f4e1faf38f3c1a4cb60a83b9885ef4Elliott Hughes 129eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughesstatic inline int digitval(int ch) { 130eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes unsigned d; 131eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 132eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes d = (unsigned)(ch - '0'); 133eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (d < 10) return (int)d; 134eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 135eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes d = (unsigned)(ch - 'a'); 136eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (d < 6) return (int)(d+10); 137eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 138eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes d = (unsigned)(ch - 'A'); 139eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (d < 6) return (int)(d+10); 140eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 141eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes return -1; 142eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes} 143eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 144eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes// This non-standard function was in our <inttypes.h> for some reason. 145eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughesextern "C" uintmax_t strntoumax(const char *nptr, char **endptr, int base, size_t n) { 146eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes const unsigned char* p = (const unsigned char *)nptr; 147eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes const unsigned char* end = p + n; 148eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes int minus = 0; 149eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes uintmax_t v = 0; 150eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes int d; 151eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 152eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes while (p < end && isspace(*p)) { 153eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p++; 154eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 155eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 156eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (p < end) { 157eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes char c = p[0]; 158eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (c == '-' || c == '+') { 159eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes minus = (c == '-'); 160eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p++; 161eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 162eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 163eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 164eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (base == 0) { 165eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (p+2 < end && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) { 166eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p += 2; 167eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes base = 16; 168eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } else if (p+1 < end && p[0] == '0') { 169eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p += 1; 170eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes base = 8; 171eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } else { 172eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes base = 10; 173eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 174eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } else if (base == 16) { 175eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (p+2 < end && p[0] == '0' && (p[1] == 'x' || p[1] == 'X')) { 176eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p += 2; 177eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 178eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 179eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 180eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes while (p < end && (d = digitval(*p)) >= 0 && d < base) { 181eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes v = v*base + d; 182eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes p += 1; 183eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 184eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 185eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes if (endptr) { 186eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes *endptr = (char*) p; 187eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes } 188eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 189eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes return minus ? -v : v; 190eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes} 191eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 192eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes// This non-standard function was in our <inttypes.h> for some reason. 193eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughesextern "C" intmax_t strntoimax(const char* nptr, char** endptr, int base, size_t n) { 194eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes return (intmax_t) strntoumax(nptr, endptr, base, n); 195eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes} 196eae5902e73dc4381811e08fd2334bf4a9300a928Elliott Hughes 197fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes// POSIX calls this dprintf, but LP32 Android had fdprintf instead. 198fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughesextern "C" int fdprintf(int fd, const char* fmt, ...) { 199fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes va_list ap; 200fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes va_start(ap, fmt); 201fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes int rc = vdprintf(fd, fmt, ap); 202fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes va_end(ap); 203fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes return rc; 204fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes} 205fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes 206fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes// POSIX calls this vdprintf, but LP32 Android had fdprintf instead. 207fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughesextern "C" int vfdprintf(int fd, const char* fmt, va_list ap) { 208fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes return vdprintf(fd, fmt, ap); 209fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes} 210fcac8ff97f6b6cced6546e0096cadc1039b68b5eElliott Hughes 211b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes#define __futex_wake __real_futex_wake 212b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes#define __futex_wait __real_futex_wait 213b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes#include "private/bionic_futex.h" 214b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes#undef __futex_wake 215b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes#undef __futex_wait 216bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes 217bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes// This used to be in <sys/atomics.h>. 218bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughesextern "C" int __futex_wake(volatile void* ftx, int count) { 219b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes return __real_futex_wake(ftx, count); 220bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes} 221bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes 222bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes// This used to be in <sys/atomics.h>. 223bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughesextern "C" int __futex_wait(volatile void* ftx, int value, const struct timespec* timeout) { 224b30aff405a220495941f1673b0a5e66c4fa8b84cElliott Hughes return __real_futex_wait(ftx, value, timeout); 225bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes} 226bd3a98c6b9850a8e55fb0e0ed9f045212c494881Elliott Hughes 227001707363ddee680d466c88dd330900683dadf63Anthony King// Unity's libmono uses this. 228001707363ddee680d466c88dd330900683dadf63Anthony Kingextern "C" int tkill(pid_t tid, int sig) { 229001707363ddee680d466c88dd330900683dadf63Anthony King return syscall(__NR_tkill, tid, sig); 230001707363ddee680d466c88dd330900683dadf63Anthony King} 231001707363ddee680d466c88dd330900683dadf63Anthony King 2321628eb1d43008c52b00ec98d10c4fd9e8b6fc7c5Elliott Hughes// This was removed from POSIX 2008. 233001f8f041bf21c53d4a0b919ef2c859b047bac0aDan Albertextern "C" wchar_t* wcswcs(wchar_t* haystack, wchar_t* needle) { 234001f8f041bf21c53d4a0b919ef2c859b047bac0aDan Albert return wcsstr(haystack, needle); 235001f8f041bf21c53d4a0b919ef2c859b047bac0aDan Albert} 236001f8f041bf21c53d4a0b919ef2c859b047bac0aDan Albert 237205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert// This was removed from POSIX 2008. 238205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albertextern "C" sighandler_t bsd_signal(int signum, sighandler_t handler) { 239205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert return signal(signum, handler); 240205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert} 241205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert 2421edfd9e36acff1824c5e8dcfbdc0580dcc74e1bbElliott Hughes#if !defined(__i386__) 24376f8916b904db14facf811ae44e1265261349702Elliott Hughes// This was removed from POSIX 2008. 24476f8916b904db14facf811ae44e1265261349702Elliott Hughes#undef bcopy 24576f8916b904db14facf811ae44e1265261349702Elliott Hughesextern "C" void bcopy(const void* src, void* dst, size_t n) { 24676f8916b904db14facf811ae44e1265261349702Elliott Hughes memcpy(dst, src, n); 24776f8916b904db14facf811ae44e1265261349702Elliott Hughes} 2481edfd9e36acff1824c5e8dcfbdc0580dcc74e1bbElliott Hughes#else 2491edfd9e36acff1824c5e8dcfbdc0580dcc74e1bbElliott Hughes// x86 has an assembler implementation. 2501edfd9e36acff1824c5e8dcfbdc0580dcc74e1bbElliott Hughes#endif 25176f8916b904db14facf811ae44e1265261349702Elliott Hughes 252205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert// sysv_signal() was never in POSIX. 253205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albertextern sighandler_t _signal(int signum, sighandler_t handler, int flags); 254205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albertextern "C" sighandler_t sysv_signal(int signum, sighandler_t handler) { 255205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert return _signal(signum, handler, SA_RESETHAND); 256205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert} 257205dd7d9b3ba314ef8601e4613823c2d62a0605bDan Albert 2583d5cb30d23cfc6a72f01c00246e69a2c614c8228Elliott Hughes// This is a system call that was never in POSIX. Use readdir(3) instead. 259d1ead2af8bf2f6bb801da272e3778f89efefe613Elliott Hughesextern "C" int __getdents64(unsigned int, dirent*, unsigned int); 260d1ead2af8bf2f6bb801da272e3778f89efefe613Elliott Hughesextern "C" int getdents(unsigned int fd, dirent* dirp, unsigned int count) { 2613d5cb30d23cfc6a72f01c00246e69a2c614c8228Elliott Hughes return __getdents64(fd, dirp, count); 2623d5cb30d23cfc6a72f01c00246e69a2c614c8228Elliott Hughes} 2633d5cb30d23cfc6a72f01c00246e69a2c614c8228Elliott Hughes 264bffbfeed7a595dcbe5843a77d84c409a0225b4e1Elliott Hughes// This is a BSDism that we never implemented correctly. Used by Firefox. 265bffbfeed7a595dcbe5843a77d84c409a0225b4e1Elliott Hughesextern "C" int issetugid() { 266bffbfeed7a595dcbe5843a77d84c409a0225b4e1Elliott Hughes return 0; 267bffbfeed7a595dcbe5843a77d84c409a0225b4e1Elliott Hughes} 268bffbfeed7a595dcbe5843a77d84c409a0225b4e1Elliott Hughes 2698229ae46f4fb165a18da4dca1be74c4c099c3ee7Dan Albert// This was removed from POSIX 2004. 2708229ae46f4fb165a18da4dca1be74c4c099c3ee7Dan Albertextern "C" pid_t wait3(int* status, int options, struct rusage* rusage) { 2718229ae46f4fb165a18da4dca1be74c4c099c3ee7Dan Albert return wait4(-1, status, options, rusage); 2728229ae46f4fb165a18da4dca1be74c4c099c3ee7Dan Albert} 2738229ae46f4fb165a18da4dca1be74c4c099c3ee7Dan Albert 274462abab12b074c62c0999859e65d5a32ebb41951Dan Albert// This was removed from POSIX 2004. 275462abab12b074c62c0999859e65d5a32ebb41951Dan Albertextern "C" int getdtablesize() { 276462abab12b074c62c0999859e65d5a32ebb41951Dan Albert struct rlimit r; 277462abab12b074c62c0999859e65d5a32ebb41951Dan Albert 278462abab12b074c62c0999859e65d5a32ebb41951Dan Albert if (getrlimit(RLIMIT_NOFILE, &r) < 0) { 279462abab12b074c62c0999859e65d5a32ebb41951Dan Albert return sysconf(_SC_OPEN_MAX); 280462abab12b074c62c0999859e65d5a32ebb41951Dan Albert } 281462abab12b074c62c0999859e65d5a32ebb41951Dan Albert 282462abab12b074c62c0999859e65d5a32ebb41951Dan Albert return r.rlim_cur; 283462abab12b074c62c0999859e65d5a32ebb41951Dan Albert} 284462abab12b074c62c0999859e65d5a32ebb41951Dan Albert 2851628eb1d43008c52b00ec98d10c4fd9e8b6fc7c5Elliott Hughes// Only used by ftime, which was removed from POSIX 2008. 286ac6467587e864d199377f14281da4641f979a68aDan Albertstruct timeb { 287ac6467587e864d199377f14281da4641f979a68aDan Albert time_t time; 288ac6467587e864d199377f14281da4641f979a68aDan Albert unsigned short millitm; 289ac6467587e864d199377f14281da4641f979a68aDan Albert short timezone; 290ac6467587e864d199377f14281da4641f979a68aDan Albert short dstflag; 291ac6467587e864d199377f14281da4641f979a68aDan Albert}; 292ac6467587e864d199377f14281da4641f979a68aDan Albert 293ac6467587e864d199377f14281da4641f979a68aDan Albert// This was removed from POSIX 2008. 294ac6467587e864d199377f14281da4641f979a68aDan Albertextern "C" int ftime(struct timeb* tb) { 295ac6467587e864d199377f14281da4641f979a68aDan Albert struct timeval tv; 296ac6467587e864d199377f14281da4641f979a68aDan Albert struct timezone tz; 297ac6467587e864d199377f14281da4641f979a68aDan Albert 298ac6467587e864d199377f14281da4641f979a68aDan Albert if (gettimeofday(&tv, &tz) < 0) 299ac6467587e864d199377f14281da4641f979a68aDan Albert return -1; 300ac6467587e864d199377f14281da4641f979a68aDan Albert 301ac6467587e864d199377f14281da4641f979a68aDan Albert tb->time = tv.tv_sec; 302ac6467587e864d199377f14281da4641f979a68aDan Albert tb->millitm = (tv.tv_usec + 500) / 1000; 303ac6467587e864d199377f14281da4641f979a68aDan Albert 304ac6467587e864d199377f14281da4641f979a68aDan Albert if (tb->millitm == 1000) { 305ac6467587e864d199377f14281da4641f979a68aDan Albert ++tb->time; 306ac6467587e864d199377f14281da4641f979a68aDan Albert tb->millitm = 0; 307ac6467587e864d199377f14281da4641f979a68aDan Albert } 308ac6467587e864d199377f14281da4641f979a68aDan Albert 309ac6467587e864d199377f14281da4641f979a68aDan Albert tb->timezone = tz.tz_minuteswest; 310ac6467587e864d199377f14281da4641f979a68aDan Albert tb->dstflag = tz.tz_dsttime; 311ac6467587e864d199377f14281da4641f979a68aDan Albert 312ac6467587e864d199377f14281da4641f979a68aDan Albert return 0; 313ac6467587e864d199377f14281da4641f979a68aDan Albert} 314ac6467587e864d199377f14281da4641f979a68aDan Albert 315891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turner// This was removed from POSIX 2008. 316891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turnerextern "C" char* index(const char* str, int ch) { 317891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turner return strchr(str, ch); 318891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turner} 319891dedb935b50f1abb39eedfe33049a1e49283cbDavid 'Digit' Turner 3205dea47221a116aa87b0c286230c944ed6b629636Elliott Hughes// This was removed from BSD. 3215dea47221a116aa87b0c286230c944ed6b629636Elliott Hughesextern "C" void arc4random_stir(void) { 3225dea47221a116aa87b0c286230c944ed6b629636Elliott Hughes // The current implementation stirs itself as needed. 3235dea47221a116aa87b0c286230c944ed6b629636Elliott Hughes} 3245dea47221a116aa87b0c286230c944ed6b629636Elliott Hughes 325fc829736e1f399a2b82058b24bb94f6bdab22469Elliott Hughes// This was removed from BSD. 326fc829736e1f399a2b82058b24bb94f6bdab22469Elliott Hughesextern "C" void arc4random_addrandom(unsigned char*, int) { 327fc829736e1f399a2b82058b24bb94f6bdab22469Elliott Hughes // The current implementation adds randomness as needed. 328fc829736e1f399a2b82058b24bb94f6bdab22469Elliott Hughes} 329fc829736e1f399a2b82058b24bb94f6bdab22469Elliott Hughes 330f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris// Old versions of the NDK did not export malloc_usable_size, but did 331f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris// export dlmalloc_usable_size. We are moving away from dlmalloc in L 332f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris// so make this call malloc_usable_size. 333f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferrisextern "C" size_t dlmalloc_usable_size(void* ptr) { 334f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris return malloc_usable_size(ptr); 335f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris} 336f90355844663b85dd57c3adcd9e92c2ee6850412Christopher Ferris 3370f001b67fea27f8d60afc4677e8970d32a4e3792Elliott Hughes// In L we added a public pthread_gettid_np, but some apps were using the private API. 3380f001b67fea27f8d60afc4677e8970d32a4e3792Elliott Hughesextern "C" pid_t __pthread_gettid(pthread_t t) { 3390f001b67fea27f8d60afc4677e8970d32a4e3792Elliott Hughes return pthread_gettid_np(t); 3400f001b67fea27f8d60afc4677e8970d32a4e3792Elliott Hughes} 3410f001b67fea27f8d60afc4677e8970d32a4e3792Elliott Hughes 342f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferris// Older versions of appportable used dlmalloc directly instead of malloc, 343f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferris// so export this compatibility shim that simply calls malloc. 344f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferrisextern "C" void* dlmalloc(size_t size) { 345f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferris return malloc(size); 346f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferris} 347f183f95946c699924d8ce6c0ee723bf7f4fdfe85Christopher Ferris 3487fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui#endif // !defined(__LP64__) 3497fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui 3507fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui// This is never implemented in bionic, only needed for ABI compatibility with the NDK. 3517fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cuiextern "C" char* getusershell() { 3527fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui return NULL; 3537fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui} 3547fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui 3557fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui// This is never implemented in bionic, only needed for ABI compatibility with the NDK. 3567fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cuiextern "C" void setusershell() { } 3577fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui 3587fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cui// This is never implemented in bionic, only needed for ABI compatibility with the NDK. 3597fb680bfda059746c9bb8939ffaed600eecc3a29Yabin Cuiextern "C" void endusershell() { } 360