OpenjdkJvm.cc revision 18d209582e0bb1caed97102a86b416173f5aad42
128ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath/* Copyright (C) 2014 The Android Open Source Project 228ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 328ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * 428ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * This file implements interfaces from the file jvm.h. This implementation 528ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * is licensed under the same terms as the file jvm.h. The 628ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * copyright and license information for the file jvm.h follows. 728ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * 828ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. 928ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 1028ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * 1128ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * This code is free software; you can redistribute it and/or modify it 1228ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * under the terms of the GNU General Public License version 2 only, as 1328ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * published by the Free Software Foundation. Oracle designates this 1428ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * particular file as subject to the "Classpath" exception as provided 1528ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * by Oracle in the LICENSE file that accompanied this code. 16df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * 1728ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * This code is distributed in the hope that it will be useful, but WITHOUT 1828ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 1928ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 2028ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * version 2 for more details (a copy is included in the LICENSE file that 2128ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * accompanied this code). 22df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * 2328ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * You should have received a copy of the GNU General Public License version 2428ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * 2 along with this work; if not, write to the Free Software Foundation, 2528ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 26df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * 2728ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 2828ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * or visit www.oracle.com if you need additional information or have any 2928ee8dbece62bf1ed9a7dfd3c581fd5860ed8867Narayan Kamath * questions. 30df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski */ 31df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 32df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* 33df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * Services that OpenJDK expects the VM to provide. 34df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski */ 35df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include<stdio.h> 36df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <dlfcn.h> 37df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <limits.h> 38df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <unistd.h> 39df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 40df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "common_throws.h" 41df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "gc/heap.h" 42df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "thread.h" 43df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "thread_list.h" 44df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "runtime.h" 45df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "handle_scope-inl.h" 46df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "scoped_thread_state_change.h" 47df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "ScopedUtfChars.h" 48df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "mirror/class_loader.h" 49df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "verify_object-inl.h" 50df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "base/logging.h" 51df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "base/macros.h" 52a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath#include "../../libcore/ojluni/src/main/native/jvm.h" // TODO(narayan): fix it 53df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "jni_internal.h" 54df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "mirror/string-inl.h" 5518d209582e0bb1caed97102a86b416173f5aad42Narayan Kamath#include "native/scoped_fast_native_object_access.h" 56df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include "ScopedLocalRef.h" 57df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <sys/time.h> 58df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <sys/socket.h> 59df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#include <sys/ioctl.h> 60df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 613e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov#ifdef __ANDROID__ 623e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov// This function is provided by android linker. 633e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanovextern "C" void android_update_LD_LIBRARY_PATH(const char* ld_library_path); 643e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov#endif // __ANDROID__ 653e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov 66df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#undef LOG_TAG 676280ef88a9231d2a14f2b0bbe6d39770c994787dNarayan Kamath#define LOG_TAG "artopenjdk" 68df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 69d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::DEBUG; 70d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::WARNING; 71d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::VERBOSE; 72d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::INFO; 73d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::ERROR; 74d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamathusing art::FATAL; 75d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath 76df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix open() with extensions; used by e.g. ZipFile */ 77a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Open(const char* fname, jint flags, jint mode) { 78df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Open fname='" << fname << "', flags=" << flags << ", mode=" << mode; 79df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 80df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski /* 81df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * The call is expected to handle JVM_O_DELETE, which causes the file 82df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * to be removed after it is opened. Also, some code seems to 83df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * want the special return value JVM_EEXIST if the file open fails 84df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * due to O_EXCL. 85df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski */ 86df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski int fd = TEMP_FAILURE_RETRY(open(fname, flags & ~JVM_O_DELETE, mode)); 87df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (fd < 0) { 88df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski int err = errno; 89df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "open(" << fname << ") failed: " << strerror(errno); 90df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (err == EEXIST) { 91df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return JVM_EEXIST; 92df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } else { 93df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return -1; 94df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 95df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 96df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 97df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (flags & JVM_O_DELETE) { 98df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "Deleting '" << fname << "' after open\n"; 99df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (unlink(fname) != 0) { 100df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(WARNING) << "Post-open deletion of '" << fname << "' failed: " << strerror(errno); 101df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 102df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski /* ignore */ 103df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 104df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 105df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(VERBOSE) << "open(" << fname << ") --> " << fd; 106df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return fd; 107df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 108df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 109df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix close() */ 110a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Close(jint fd) { 111df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Close fd=" << fd; 112df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // don't want TEMP_FAILURE_RETRY here -- file is closed even if EINTR 113df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return close(fd); 114df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 115df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 116df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix read() */ 117a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Read(jint fd, char* buf, jint nbytes) { 118df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Read fd=" << fd << ", buf='" << buf << "', nbytes=" << nbytes; 119df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return TEMP_FAILURE_RETRY(read(fd, buf, nbytes)); 120df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 121df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 122df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix write(); is used to write messages to stderr */ 123a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Write(jint fd, char* buf, jint nbytes) { 124df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Write fd=" << fd << ", buf='" << buf << "', nbytes=" << nbytes; 125df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return TEMP_FAILURE_RETRY(write(fd, buf, nbytes)); 126df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 127df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 128df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix lseek() */ 129a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jlong JVM_Lseek(jint fd, jlong offset, jint whence) { 130df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Lseek fd=" << fd << ", offset=" << offset << ", whence=" << whence; 131df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return TEMP_FAILURE_RETRY(lseek(fd, offset, whence)); 132df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 133a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath 134df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* 135df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * "raw monitors" seem to be expected to behave like non-recursive pthread 136df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski * mutexes. They're used by ZipFile. 137df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski */ 138a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT void* JVM_RawMonitorCreate(void) { 139df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_RawMonitorCreate"; 140df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski pthread_mutex_t* newMutex = 141a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath reinterpret_cast<pthread_mutex_t*>(malloc(sizeof(pthread_mutex_t))); 142df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski pthread_mutex_init(newMutex, NULL); 143df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return newMutex; 144df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 145df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 146a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT void JVM_RawMonitorDestroy(void* mon) { 147df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_RawMonitorDestroy mon=" << mon; 148a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath pthread_mutex_destroy(reinterpret_cast<pthread_mutex_t*>(mon)); 149df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 150df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 151a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_RawMonitorEnter(void* mon) { 152df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_RawMonitorEnter mon=" << mon; 153a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return pthread_mutex_lock(reinterpret_cast<pthread_mutex_t*>(mon)); 154df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 155df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 156a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT void JVM_RawMonitorExit(void* mon) { 157df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_RawMonitorExit mon=" << mon; 158a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath pthread_mutex_unlock(reinterpret_cast<pthread_mutex_t*>(mon)); 159df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 160df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 161a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT char* JVM_NativePath(char* path) { 162df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_NativePath path='" << path << "'"; 163df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return path; 164df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 165df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 166a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_GetLastErrorString(char* buf, int len) { 167d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath#if defined(__GLIBC__) || defined(__BIONIC__) 168d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath int err = errno; // grab before JVM_TRACE can trash it 169d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath LOG(DEBUG) << "JVM_GetLastErrorString buf=" << buf << ", len=" << len; 170d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath 171d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath if (len == 0) { 172d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath return 0; 173d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath } 174df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 175d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath char* result = strerror_r(err, buf, len); 176d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath if (result != buf) { 177d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath strncpy(buf, result, len); 178d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath buf[len - 1] = '\0'; 179d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath } 180df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 181d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath return strlen(buf); 182df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#else 183d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath UNUSED(buf); 184d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath UNUSED(len); 185d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath return -1; 186df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski#endif 187df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 188df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 189a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT int jio_fprintf(FILE* fp, const char* fmt, ...) { 190df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski va_list args; 191df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 192df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski va_start(args, fmt); 193df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski int len = jio_vfprintf(fp, fmt, args); 194df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski va_end(args); 195df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 196df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return len; 197df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 198df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 199a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT int jio_vfprintf(FILE* fp, const char* fmt, va_list args) { 200df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski assert(fp != NULL); 201df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return vfprintf(fp, fmt, args); 202df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 203df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 204df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski/* posix fsync() */ 205a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Sync(jint fd) { 206df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Sync fd=" << fd; 207df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return TEMP_FAILURE_RETRY(fsync(fd)); 208df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 209df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 210a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT void* JVM_FindLibraryEntry(void* handle, const char* name) { 211df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_FindLibraryEntry handle=" << handle << " name=" << name; 21267d39adad3261f3932defef6b2d1d30b470d1be0Przemyslaw Szczepaniak return dlsym(handle, name); 213df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 214df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 2156c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jlong JVM_CurrentTimeMillis(JNIEnv* env, jclass clazz ATTRIBUTE_UNUSED) { 216df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_CurrentTimeMillis env=" << env; 217df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski struct timeval tv; 218df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 219df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski gettimeofday(&tv, (struct timezone *) NULL); 220df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski jlong when = tv.tv_sec * 1000LL + tv.tv_usec / 1000; 221df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return when; 222df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 223df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 224a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Socket(jint domain, jint type, jint protocol) { 225df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(DEBUG) << "JVM_Socket domain=" << domain << ", type=" << type << ", protocol=" << protocol; 226df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 227df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return TEMP_FAILURE_RETRY(socket(domain, type, protocol)); 228df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 229df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 230df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jint JVM_InitializeSocketLibrary() { 231df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return 0; 232df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 233df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 234df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebskiint jio_vsnprintf(char *str, size_t count, const char *fmt, va_list args) { 235a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath if ((intptr_t)count <= 0) return -1; 236a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return vsnprintf(str, count, fmt, args); 237df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 238df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 239df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebskiint jio_snprintf(char *str, size_t count, const char *fmt, ...) { 240a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath va_list args; 241a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath int len; 242a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath va_start(args, fmt); 243a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath len = jio_vsnprintf(str, count, fmt, args); 244a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath va_end(args); 245a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return len; 246df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 247df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 248df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jint JVM_SetSockOpt(jint fd, int level, int optname, 249a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath const char* optval, int optlen) { 250a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_SetSockOpt fd=" << fd << ", level=" << level << ", optname=" << optname 251a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath << ", optval=" << optval << ", optlen=" << optlen; 252a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(setsockopt(fd, level, optname, optval, optlen)); 253df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 254df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 255a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_SocketShutdown(jint fd, jint howto) { 256a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_SocketShutdown fd=" << fd << ", howto=" << howto; 257a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(shutdown(fd, howto)); 258df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 259df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 260df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jint JVM_GetSockOpt(jint fd, int level, int optname, char* optval, 261a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath int* optlen) { 262a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_GetSockOpt fd=" << fd << ", level=" << level << ", optname=" << optname 263a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath << ", optval=" << optval << ", optlen=" << optlen; 264df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 265a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath socklen_t len = *optlen; 266a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath int cc = TEMP_FAILURE_RETRY(getsockopt(fd, level, optname, optval, &len)); 267a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath *optlen = len; 268a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return cc; 269df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 270df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 271a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_GetSockName(jint fd, struct sockaddr* addr, int* addrlen) { 272a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_GetSockName fd=" << fd << ", addr=" << addr << ", addrlen=" << addrlen; 273df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 274a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath socklen_t len = *addrlen; 275a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath int cc = TEMP_FAILURE_RETRY(getsockname(fd, addr, &len)); 276a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath *addrlen = len; 277a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return cc; 278df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 279df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 280a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_SocketAvailable(jint fd, jint* result) { 281a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_SocketAvailable fd=" << fd << ", result=" << result; 282df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 283a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath if (TEMP_FAILURE_RETRY(ioctl(fd, FIONREAD, result)) < 0) { 284a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "ioctl(" << fd << ", FIONREAD) failed: " << strerror(errno); 285a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return JNI_FALSE; 286a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath } 287df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 288a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return JNI_TRUE; 289df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 290df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 291a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Send(jint fd, char* buf, jint nBytes, jint flags) { 292a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_Send fd=" << fd << ", buf=" << buf << ", nBytes=" 293a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath << nBytes << ", flags=" << flags; 294df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 295a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(send(fd, buf, nBytes, flags)); 296df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 297df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 298a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_SocketClose(jint fd) { 299a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_SocketClose fd=" << fd; 300df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 301df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // don't want TEMP_FAILURE_RETRY here -- file is closed even if EINTR 302a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return close(fd); 303df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 304df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 305a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Listen(jint fd, jint count) { 306a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_Listen fd=" << fd << ", count=" << count; 307df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 308a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(listen(fd, count)); 309df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 310df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 311a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jint JVM_Connect(jint fd, struct sockaddr* addr, jint addrlen) { 312a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_Connect fd=" << fd << ", addr=" << addr << ", addrlen=" << addrlen; 313df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 314a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(connect(fd, addr, addrlen)); 315df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 316df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 317a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT int JVM_GetHostName(char* name, int namelen) { 318a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_GetHostName name=" << name << ", namelen=" << namelen; 319df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 320a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return TEMP_FAILURE_RETRY(gethostname(name, namelen)); 321df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 322df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 323a0cf5a663f19f0392187d349f1832d85f90ab805Narayan KamathJNIEXPORT jstring JVM_InternString(JNIEnv* env, jstring jstr) { 324a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(DEBUG) << "JVM_InternString env=" << env << ", jstr=" << jstr; 325a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath art::ScopedFastNativeObjectAccess soa(env); 326a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath art::mirror::String* s = soa.Decode<art::mirror::String*>(jstr); 327a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath art::mirror::String* result = s->Intern(); 328a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return soa.AddLocalReference<jstring>(result); 329df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 330df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 331df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jlong JVM_FreeMemory(void) { 332a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return art::Runtime::Current()->GetHeap()->GetFreeMemory(); 333df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 334df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 335df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jlong JVM_TotalMemory(void) { 336a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return art::Runtime::Current()->GetHeap()->GetTotalMemory(); 337df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 338df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 339df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jlong JVM_MaxMemory(void) { 340a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return art::Runtime::Current()->GetHeap()->GetMaxMemory(); 341df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 342df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 343df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT void JVM_GC(void) { 344a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath if (art::Runtime::Current()->IsExplicitGcDisabled()) { 345a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath LOG(INFO) << "Explicit GC skipped."; 346a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath return; 347a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath } 348a0cf5a663f19f0392187d349f1832d85f90ab805Narayan Kamath art::Runtime::Current()->GetHeap()->CollectGarbage(false); 349df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 350df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 3516c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT __attribute__((noreturn)) void JVM_Exit(jint status) { 352df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(INFO) << "System.exit called, status: " << status; 353df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Runtime::Current()->CallExitHook(status); 354df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski exit(status); 355df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 356df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 3573e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanovstatic void SetLdLibraryPath(JNIEnv* env, jstring javaLdLibraryPath) { 3583e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov#ifdef __ANDROID__ 3593e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov if (javaLdLibraryPath != nullptr) { 3603e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov ScopedUtfChars ldLibraryPath(env, javaLdLibraryPath); 3613e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov if (ldLibraryPath.c_str() != nullptr) { 3623e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov android_update_LD_LIBRARY_PATH(ldLibraryPath.c_str()); 3633e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov } 3643e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov } 3653e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov 3663e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov#else 3673e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov LOG(WARNING) << "android_update_LD_LIBRARY_PATH not found; .so dependencies will not work!"; 3683e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov UNUSED(javaLdLibraryPath, env); 3693e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov#endif 3703e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov} 3713e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov 3723e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov 373df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jstring JVM_NativeLoad(JNIEnv* env, jstring javaFilename, jobject javaLoader, 374986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov jboolean isSharedNamespace, jstring javaLibrarySearchPath, 375986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov jstring javaLibraryPermittedPath) { 376df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski ScopedUtfChars filename(env, javaFilename); 377df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (filename.c_str() == NULL) { 378df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return NULL; 379df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 380df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 3813e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov int32_t target_sdk_version = art::Runtime::Current()->GetTargetSdkVersion(); 3823e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov 3833e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov // Starting with N nativeLoad uses classloader local 3843e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov // linker namespace instead of global LD_LIBRARY_PATH 3853e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov // (23 is Marshmallow) 3863e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov if (target_sdk_version <= 23) { 387986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov SetLdLibraryPath(env, javaLibrarySearchPath); 388df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 389df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 3903e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov std::string error_msg; 391df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski { 392df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedObjectAccess soa(env); 393df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::StackHandleScope<1> hs(soa.Self()); 394df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::JavaVMExt* vm = art::Runtime::Current()->GetJavaVM(); 395986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov bool success = vm->LoadNativeLibrary(env, 396986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov filename.c_str(), 397986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov javaLoader, 398986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov isSharedNamespace == JNI_TRUE, 399986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov javaLibrarySearchPath, 400986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov javaLibraryPermittedPath, 401986f650d8b552e8b7dbebef1f50f015e7850edfcDimitry Ivanov &error_msg); 402df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (success) { 403df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return nullptr; 404df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 405df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 406df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 407df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // Don't let a pending exception from JNI_OnLoad cause a CheckJNI issue with NewStringUTF. 408df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski env->ExceptionClear(); 4093e381723658e8a0bce24071b53f57bf22af76a1eDmitriy Ivanov return env->NewStringUTF(error_msg.c_str()); 410df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 411df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 412df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT void JVM_StartThread(JNIEnv* env, jobject jthread, jlong stack_size, jboolean daemon) { 413df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Thread::CreateNativeThread(env, jthread, stack_size, daemon == JNI_TRUE); 414df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 415df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 416df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT void JVM_SetThreadPriority(JNIEnv* env, jobject jthread, jint prio) { 417df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedObjectAccess soa(env); 418df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_); 419df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Thread* thread = art::Thread::FromManagedThread(soa, jthread); 420df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (thread != NULL) { 421df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski thread->SetNativePriority(prio); 422df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 423df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 424df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 4256c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT void JVM_Yield(JNIEnv* env ATTRIBUTE_UNUSED, jclass threadClass ATTRIBUTE_UNUSED) { 426df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski sched_yield(); 427df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 428df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 4296c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT void JVM_Sleep(JNIEnv* env, jclass threadClass ATTRIBUTE_UNUSED, 4306c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw Szczepaniak jobject java_lock, jlong millis) { 431df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedFastNativeObjectAccess soa(env); 432df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::mirror::Object* lock = soa.Decode<art::mirror::Object*>(java_lock); 433df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Monitor::Wait(art::Thread::Current(), lock, millis, 0, true, art::kSleeping); 434df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 435df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 4366c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jobject JVM_CurrentThread(JNIEnv* env, jclass unused ATTRIBUTE_UNUSED) { 437df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedFastNativeObjectAccess soa(env); 438df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return soa.AddLocalReference<jobject>(soa.Self()->GetPeer()); 439df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 440df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 441df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT void JVM_Interrupt(JNIEnv* env, jobject jthread) { 442df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedFastNativeObjectAccess soa(env); 443df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_); 444df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Thread* thread = art::Thread::FromManagedThread(soa, jthread); 445df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (thread != nullptr) { 446df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski thread->Interrupt(soa.Self()); 447df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 448df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 449df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 450df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT jboolean JVM_IsInterrupted(JNIEnv* env, jobject jthread, jboolean clearInterrupted) { 451df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (clearInterrupted) { 452df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return static_cast<art::JNIEnvExt*>(env)->self->Interrupted() ? JNI_TRUE : JNI_FALSE; 453df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } else { 454df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedFastNativeObjectAccess soa(env); 455df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::MutexLock mu(soa.Self(), *art::Locks::thread_list_lock_); 456df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Thread* thread = art::Thread::FromManagedThread(soa, jthread); 457df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return (thread != nullptr) ? thread->IsInterrupted() : JNI_FALSE; 458df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 459df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 460df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 4616c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jboolean JVM_HoldsLock(JNIEnv* env, jclass unused ATTRIBUTE_UNUSED, jobject jobj) { 462df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedObjectAccess soa(env); 463df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::mirror::Object* object = soa.Decode<art::mirror::Object*>(jobj); 464df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (object == NULL) { 465d1ef4362bf799f9f5d50e5edef8433664b503051Narayan Kamath art::ThrowNullPointerException("object == null"); 466df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return JNI_FALSE; 467df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 468df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return soa.Self()->HoldsLock(object); 469df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 470df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 471df0b17a474306198b7b0320311496e42d707a00ePiotr JastrzebskiJNIEXPORT void JVM_SetNativeThreadName(JNIEnv* env, jobject jthread, jstring java_name) { 472df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski ScopedUtfChars name(env, java_name); 473df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski { 474df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedObjectAccess soa(env); 475df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (soa.Decode<art::mirror::Object*>(jthread) == soa.Self()->GetPeer()) { 476df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski soa.Self()->SetThreadName(name.c_str()); 477df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski return; 478df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 479df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 480df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // Suspend thread to avoid it from killing itself while we set its name. We don't just hold the 481df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // thread list lock to avoid this, as setting the thread name causes mutator to lock/unlock 482df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // in the DDMS send code. 483df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ThreadList* thread_list = art::Runtime::Current()->GetThreadList(); 484df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski bool timed_out; 485df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski // Take suspend thread lock to avoid races with threads trying to suspend this one. 486df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::Thread* thread; 487df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski { 488df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski thread = thread_list->SuspendThreadByPeer(jthread, true, false, &timed_out); 489df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 490df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski if (thread != NULL) { 491df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski { 492df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski art::ScopedObjectAccess soa(env); 493df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski thread->SetThreadName(name.c_str()); 494df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 495df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski thread_list->Resume(thread, false); 496df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } else if (timed_out) { 497df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski LOG(ERROR) << "Trying to set thread name to '" << name.c_str() << "' failed as the thread " 498df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski "failed to suspend within a generous timeout."; 499df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski } 500df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 501df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 50268d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan KamathJNIEXPORT jint JVM_IHashCode(JNIEnv* env ATTRIBUTE_UNUSED, 50368d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath jobject javaObject ATTRIBUTE_UNUSED) { 50468d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath UNIMPLEMENTED(FATAL) << "JVM_IHashCode is not implemented"; 50568d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath return 0; 506df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 507df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 5086c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jlong JVM_NanoTime(JNIEnv* env ATTRIBUTE_UNUSED, jclass unused ATTRIBUTE_UNUSED) { 50968d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath UNIMPLEMENTED(FATAL) << "JVM_NanoTime is not implemented"; 51068d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath return 0L; 511df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 512df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 51368d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan KamathJNIEXPORT void JVM_ArrayCopy(JNIEnv* /* env */, jclass /* unused */, jobject /* javaSrc */, 51468d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath jint /* srcPos */, jobject /* javaDst */, jint /* dstPos */, 51568d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath jint /* length */) { 51668d8ff4bc1b83c87e9dac0ac0394d1381369e223Narayan Kamath UNIMPLEMENTED(FATAL) << "JVM_ArrayCopy is not implemented"; 517df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 518df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 5196c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jint JVM_FindSignal(const char* name ATTRIBUTE_UNUSED) { 52036379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath LOG(FATAL) << "JVM_FindSignal is not implemented"; 52136379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath return 0; 522df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 523df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 5246c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT void* JVM_RegisterSignal(jint signum ATTRIBUTE_UNUSED, void* handler ATTRIBUTE_UNUSED) { 52536379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath LOG(FATAL) << "JVM_RegisterSignal is not implemented"; 52636379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath return nullptr; 527df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 528df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 5296c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT jboolean JVM_RaiseSignal(jint signum ATTRIBUTE_UNUSED) { 53036379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath LOG(FATAL) << "JVM_RaiseSignal is not implemented"; 53136379fdf339a85cd89d12506d97ecdf582041b16Narayan Kamath return JNI_FALSE; 532df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 533df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski 5346c0ea2799f7dc8b8763c07a6e94c23590f6b54b5Przemyslaw SzczepaniakJNIEXPORT __attribute__((noreturn)) void JVM_Halt(jint code) { 535df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski exit(code); 536df0b17a474306198b7b0320311496e42d707a00ePiotr Jastrzebski} 537b02d9b7329909cbf741b16faf81616a992a1bd2bPrzemyslaw Szczepaniak 538b02d9b7329909cbf741b16faf81616a992a1bd2bPrzemyslaw SzczepaniakJNIEXPORT jboolean JVM_IsNaN(jdouble d) { 539b02d9b7329909cbf741b16faf81616a992a1bd2bPrzemyslaw Szczepaniak return isnan(d); 540b02d9b7329909cbf741b16faf81616a992a1bd2bPrzemyslaw Szczepaniak} 541