Compiler.cpp revision 5ccdf0be4b448c98b595444a77dbaa21471ad1b1
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 Chengstatic inline bool workQueueLength(void) 25ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 26ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return gDvmJit.compilerQueueLength; 27ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 28ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 29ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic CompilerWorkOrder workDequeue(void) 30ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 31ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex].kind 32ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng != kWorkOrderInvalid); 33ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = 34ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex]; 35ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex++].kind = 36ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng kWorkOrderInvalid; 37ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkDequeueIndex == COMPILER_WORK_QUEUE_SIZE) { 38ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkDequeueIndex = 0; 39ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 40ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength--; 41ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 42ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Remember the high water mark of the queue length */ 43ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength > gDvmJit.compilerMaxQueued) 44ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerMaxQueued = gDvmJit.compilerQueueLength; 45ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 46ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return work; 47ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 48ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 49ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerWorkEnqueue(const u2 *pc, WorkOrderKind kind, void* info) 50ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 51ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 52ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int i; 53ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int numWork; 54ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 55ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 56ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 57ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Queue full */ 58ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength == COMPILER_WORK_QUEUE_SIZE || 59ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCacheFull == true) { 60ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 61ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 62ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 63ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 64ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng for (numWork = gDvmJit.compilerQueueLength, 65ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = gDvmJit.compilerWorkDequeueIndex; 66ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork > 0; 67ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork--) { 68ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Already enqueued */ 69ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkQueue[i++].pc == pc) 70ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto done; 71ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Wrap around */ 72ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (i == COMPILER_WORK_QUEUE_SIZE) 73ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = 0; 74ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 75ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 76ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].pc = pc; 77ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].kind = kind; 78ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex].info = info; 79ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex++; 80ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkEnqueueIndex == COMPILER_WORK_QUEUE_SIZE) 81ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = 0; 82ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength++; 83ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueActivity); 84ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 85ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 86ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengdone: 87ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 88ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 89ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 90ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 91ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng/* Block until queue length is 0 */ 92ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerDrainQueue(void) 93ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 94ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 95ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (workQueueLength() != 0 && !gDvmJit.haltCompilerThread) { 96ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueEmpty, &gDvmJit.compilerLock); 97ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 98ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 99ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 100ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 101ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic void *compilerThreadStart(void *arg) 102ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 1035ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_VMWAIT); 1045ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 105ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 106ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 107ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Since the compiler thread will not touch any objects on the heap once 108ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * being created, we just fake its state as VMWAIT so that it can be a 109ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * bit late when there is suspend request pending. 110ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 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 CompilerWorkOrder work = workDequeue(); 122ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 123ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Check whether there is a suspend request on me */ 124ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmCheckSuspendPending(NULL); 1252717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee /* Is JitTable filling up? */ 1262717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee if (gDvmJit.jitTableEntriesUsed > 1272717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee (gDvmJit.jitTableSize - gDvmJit.jitTableSize/4)) { 1282717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee dvmJitResizeJitTable(gDvmJit.jitTableSize * 2); 1292717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee } 130ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.haltCompilerThread) { 131ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGD("Compiler shutdown in progress - discarding request"); 132ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 133ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Compilation is successful */ 134716f120d7f33ca18a5dcbef811399df0cbefe5d0Bill Buzbee if (dvmCompilerDoWork(&work)) { 135716f120d7f33ca18a5dcbef811399df0cbefe5d0Bill Buzbee dvmJitSetCodeAddr(work.pc, work.result.codeAddress, 136716f120d7f33ca18a5dcbef811399df0cbefe5d0Bill Buzbee work.result.instructionSet); 137ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 138ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 139ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng free(work.info); 140ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 141ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } while (workQueueLength() != 0); 142ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 143ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 144ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 145ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 146ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng 1475ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng /* 1485ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * As part of detaching the thread we need to call into Java code to update 1495ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * the ThreadGroup, and we should not be in VMWAIT state while executing 1505ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * interpreted code. 1515ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng */ 1525ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_RUNNING); 1535ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 154ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread shutting down\n"); 155ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return NULL; 156ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 157ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 158ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerSetupCodeCache(void) 159ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 160ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng extern void dvmCompilerTemplateStart(void); 161ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng extern void dmvCompilerTemplateEnd(void); 162ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 163ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Allocate the code cache */ 164ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCache = mmap(0, CODE_CACHE_SIZE, 165ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng PROT_READ | PROT_WRITE | PROT_EXEC, 166ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); 167ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.codeCache == MAP_FAILED) { 168ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGE("Failed to create the code cache: %s\n", strerror(errno)); 169ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 170ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 171ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 172ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Copy the template code into the beginning of the code cache */ 173ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int templateSize = (intptr_t) dmvCompilerTemplateEnd - 174ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (intptr_t) dvmCompilerTemplateStart; 175ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng memcpy((void *) gDvmJit.codeCache, 176ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (void *) dvmCompilerTemplateStart, 177ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng templateSize); 1788b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng 1798b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng gDvmJit.templateSize = templateSize; 180ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCacheByteUsed = templateSize; 181ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 182ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Flush dcache and invalidate the icache to maintain coherence */ 183ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cacheflush((intptr_t) gDvmJit.codeCache, 184ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng (intptr_t) gDvmJit.codeCache + CODE_CACHE_SIZE, 0); 185ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 186ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 187ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 188ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerStartup(void) 189ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 190ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Make sure the BBType enum is in sane state */ 1911efc9c5e4c5c4c2fccde18e5771c68d064c33bd3Ben Cheng assert(CHAINING_CELL_NORMAL == 0); 192ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 193ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Architecture-specific chores to initialize */ 194ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerArchInit()) 195ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 196ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 197ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 198ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Setup the code cache if it is not done so already. For apps it should be 199ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * done by the Zygote already, but for command-line dalvikvm invocation we 200ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * need to do it here. 201ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 202ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.codeCache == NULL) { 203ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerSetupCodeCache()) 204ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 205ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 206ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 207ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Allocate the initial arena block */ 208ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (dvmCompilerHeapInit() == false) { 209ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 210ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 211ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 212ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmInitMutex(&gDvmJit.compilerLock); 213ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueActivity, NULL); 214ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueEmpty, NULL); 215ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 216ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 217ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 218ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = false; 219ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 220ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Reset the work queue */ 221ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng memset(gDvmJit.compilerWorkQueue, 0, 222ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 223ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 224ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength = 0; 225ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerHighWater = 226ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng COMPILER_WORK_QUEUE_SIZE - (COMPILER_WORK_QUEUE_SIZE/4); 227ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 228ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerHighWater < COMPILER_WORK_QUEUE_SIZE); 229ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCreateInternalThread(&gDvmJit.compilerHandle, "Compiler", 230ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng compilerThreadStart, NULL)) { 231ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 232ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 233ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 234ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 2358b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng /* Track method-level compilation statistics */ 2368b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng gDvmJit.methodStatsTable = dvmHashTableCreate(32, NULL); 2378b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng 238ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 239ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 240ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 241ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 242ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengfail: 243ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 244ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 245ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 246ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerShutdown(void) 247ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 248ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *threadReturn; 249ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 250ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerHandle) { 251ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 252ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = true; 253ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 254ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 255ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueActivity); 256ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 257ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 258ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng if (pthread_join(gDvmJit.compilerHandle, &threadReturn) != 0) 259ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGW("Compiler thread join failed\n"); 260ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng else 261ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread has shut down\n"); 262ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 263ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 264