Compiler.cpp revision ba4fc8bfc1bccae048403bd1cea3b869dca61dd7
1ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng/* 2ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Copyright (C) 2009 The Android Open Source Project 3ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * 4ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Licensed under the Apache License, Version 2.0 (the "License"); 5ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * you may not use this file except in compliance with the License. 6ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * You may obtain a copy of the License at 7ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * 8ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * http://www.apache.org/licenses/LICENSE-2.0 9ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * 10ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Unless required by applicable law or agreed to in writing, software 11ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * distributed under the License is distributed on an "AS IS" BASIS, 12ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * See the License for the specific language governing permissions and 14ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * limitations under the License. 15ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 16ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 17ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include <sys/mman.h> 18ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include <errno.h> 19ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 20ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "Dalvik.h" 21ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "interp/Jit.h" 22ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "CompilerInternals.h" 23ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 24ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 25ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic inline bool workQueueLength(void) 26ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 27ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return gDvmJit.compilerQueueLength; 28ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 29ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 30ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic CompilerWorkOrder workDequeue(void) 31ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 32ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex].kind 33ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng != kWorkOrderInvalid); 34ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = 35ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex]; 36ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex++].kind = 37ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng kWorkOrderInvalid; 38ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkDequeueIndex == COMPILER_WORK_QUEUE_SIZE) { 39ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkDequeueIndex = 0; 40ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 41ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength--; 42ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 43ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Remember the high water mark of the queue length */ 44ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength > gDvmJit.compilerMaxQueued) 45ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerMaxQueued = gDvmJit.compilerQueueLength; 46ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 47ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return work; 48ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 49ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 50ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerWorkEnqueue(const u2 *pc, WorkOrderKind kind, void* info) 51ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 52ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 53ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int i; 54ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int numWork; 55ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 56ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 57ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 58ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Queue full */ 59ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength == COMPILER_WORK_QUEUE_SIZE || 60ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCacheFull == true) { 61ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 62ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 63ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 64ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 65ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng for (numWork = gDvmJit.compilerQueueLength, 66ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = gDvmJit.compilerWorkDequeueIndex; 67ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork > 0; 68ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork--) { 69ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Already enqueued */ 70ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkQueue[i++].pc == pc) 71ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto done; 72ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Wrap around */ 73ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (i == COMPILER_WORK_QUEUE_SIZE) 74ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = 0; 75ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 76ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 77ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].pc = pc; 78ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].kind = kind; 79ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].info = info; 80ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex++; 81ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkEnqueueIndex == COMPILER_WORK_QUEUE_SIZE) 82ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = 0; 83ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength++; 84ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueActivity); 85ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 86ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 87ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengdone: 88ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 89ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 90ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 91ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 92ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng/* Block until queue length is 0 */ 93ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerDrainQueue(void) 94ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 95ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 96ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (workQueueLength() != 0 && !gDvmJit.haltCompilerThread) { 97ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueEmpty, &gDvmJit.compilerLock); 98ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 99ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 100ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 101ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 102ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic void *compilerThreadStart(void *arg) 103ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 104ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 105ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 106ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Since the compiler thread will not touch any objects on the heap once 107ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * being created, we just fake its state as VMWAIT so that it can be a 108ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * bit late when there is suspend request pending. 109ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 110ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmChangeStatus(NULL, THREAD_VMWAIT); 111ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (!gDvmJit.haltCompilerThread) { 112ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (workQueueLength() == 0) { 113ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 114ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 115ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 116ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueActivity, 117ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng &gDvmJit.compilerLock); 118ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng continue; 119ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 120ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng do { 121ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *compiledCodePtr; 122ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = workDequeue(); 123ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 124ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Check whether there is a suspend request on me */ 125ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmCheckSuspendPending(NULL); 126ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.haltCompilerThread) { 127ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGD("Compiler shutdown in progress - discarding request"); 128ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 129ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng compiledCodePtr = dvmCompilerDoWork(&work); 130ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Compilation is successful */ 131ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (compiledCodePtr) { 132ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmJitSetCodeAddr(work.pc, compiledCodePtr); 133ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 134ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 135ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng free(work.info); 136ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 137ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } while (workQueueLength() != 0); 138ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 139ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 140ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 141ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 142ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return NULL; 143ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 144ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 145ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerSetupCodeCache(void) 146ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 147ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng extern void dvmCompilerTemplateStart(void); 148ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng extern void dmvCompilerTemplateEnd(void); 149ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 150ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Allocate the code cache */ 151ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCache = mmap(0, CODE_CACHE_SIZE, 152ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng PROT_READ | PROT_WRITE | PROT_EXEC, 153ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); 154ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.codeCache == MAP_FAILED) { 155ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGE("Failed to create the code cache: %s\n", strerror(errno)); 156ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 157ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 158ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 159ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Copy the template code into the beginning of the code cache */ 160ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int templateSize = (intptr_t) dmvCompilerTemplateEnd - 161ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (intptr_t) dvmCompilerTemplateStart; 162ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng memcpy((void *) gDvmJit.codeCache, 163ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (void *) dvmCompilerTemplateStart, 164ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng templateSize); 165ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCacheByteUsed = templateSize; 166ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 167ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Flush dcache and invalidate the icache to maintain coherence */ 168ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cacheflush((intptr_t) gDvmJit.codeCache, 169ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (intptr_t) gDvmJit.codeCache + CODE_CACHE_SIZE, 0); 170ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 171ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 172ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 173ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerStartup(void) 174ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 175ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Make sure the BBType enum is in sane state */ 176ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(CHAINING_CELL_GENERIC == 0); 177ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 178ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Architecture-specific chores to initialize */ 179ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerArchInit()) 180ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 181ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 182ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 183ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Setup the code cache if it is not done so already. For apps it should be 184ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * done by the Zygote already, but for command-line dalvikvm invocation we 185ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * need to do it here. 186ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 187ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.codeCache == NULL) { 188ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerSetupCodeCache()) 189ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 190ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 191ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 192ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Allocate the initial arena block */ 193ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (dvmCompilerHeapInit() == false) { 194ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 195ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 196ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 197ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmInitMutex(&gDvmJit.compilerLock); 198ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueActivity, NULL); 199ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueEmpty, NULL); 200ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 201ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 202ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 203ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = false; 204ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 205ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Reset the work queue */ 206ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng memset(gDvmJit.compilerWorkQueue, 0, 207ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 208ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 209ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength = 0; 210ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerHighWater = 211ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng COMPILER_WORK_QUEUE_SIZE - (COMPILER_WORK_QUEUE_SIZE/4); 212ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 213ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerHighWater < COMPILER_WORK_QUEUE_SIZE); 214ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCreateInternalThread(&gDvmJit.compilerHandle, "Compiler", 215ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng compilerThreadStart, NULL)) { 216ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 217ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 218ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 219ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 220ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 221ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 222ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 223ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 224ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengfail: 225ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 226ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 227ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 228ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerShutdown(void) 229ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 230ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *threadReturn; 231ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 232ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerHandle) { 233ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 234ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = true; 235ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 236ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 237ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueActivity); 238ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 239ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 240ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_join(gDvmJit.compilerHandle, &threadReturn); 241ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 242ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 243