Compiler.cpp revision 60c24f436d603c564d5351a6f81821f12635733c
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--; 41f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee if (gDvmJit.compilerQueueLength == 0) { 42f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee int cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 43f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee } 44ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 45ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Remember the high water mark of the queue length */ 46ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength > gDvmJit.compilerMaxQueued) 47ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerMaxQueued = gDvmJit.compilerQueueLength; 48ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 49ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return work; 50ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 51ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 52ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerWorkEnqueue(const u2 *pc, WorkOrderKind kind, void* info) 53ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 54ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 55ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int i; 56ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int numWork; 5760c24f436d603c564d5351a6f81821f12635733cBen Cheng int oldStatus = dvmChangeStatus(NULL, THREAD_VMWAIT); 5860c24f436d603c564d5351a6f81821f12635733cBen Cheng bool result = true; 59ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 60ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 61ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 62ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Queue full */ 63ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength == COMPILER_WORK_QUEUE_SIZE || 64ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.codeCacheFull == true) { 6560c24f436d603c564d5351a6f81821f12635733cBen Cheng result = false; 6660c24f436d603c564d5351a6f81821f12635733cBen Cheng goto done; 67ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 68ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 69ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng for (numWork = gDvmJit.compilerQueueLength, 70ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = gDvmJit.compilerWorkDequeueIndex; 71ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork > 0; 72ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork--) { 73ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Already enqueued */ 74ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkQueue[i++].pc == pc) 75ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto done; 76ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Wrap around */ 77ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (i == COMPILER_WORK_QUEUE_SIZE) 78ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = 0; 79ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 80ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 81ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng CompilerWorkOrder *newOrder = 82ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng &gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex]; 83ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->pc = pc; 84ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->kind = kind; 85ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->info = info; 86ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.codeAddress = NULL; 87ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.discardResult = 8860c24f436d603c564d5351a6f81821f12635733cBen Cheng (kind == kWorkOrderTraceDebug || kind == kWorkOrderICPatch) ? 8960c24f436d603c564d5351a6f81821f12635733cBen Cheng true : false; 90ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex++; 91ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkEnqueueIndex == COMPILER_WORK_QUEUE_SIZE) 92ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = 0; 93ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength++; 94ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueActivity); 95ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 96ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 97ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengdone: 98ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 9960c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmChangeStatus(NULL, oldStatus); 10060c24f436d603c564d5351a6f81821f12635733cBen Cheng return result; 101ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 102ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 103ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng/* Block until queue length is 0 */ 104ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerDrainQueue(void) 105ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 106d726991ba52466cde88e37aba4de2395b62477faBill Buzbee int oldStatus = dvmChangeStatus(NULL, THREAD_VMWAIT); 107ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 108ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (workQueueLength() != 0 && !gDvmJit.haltCompilerThread) { 109ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueEmpty, &gDvmJit.compilerLock); 110ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 111ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 112d726991ba52466cde88e37aba4de2395b62477faBill Buzbee dvmChangeStatus(NULL, oldStatus); 113ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 114ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 11560c24f436d603c564d5351a6f81821f12635733cBen Chengbool dvmCompilerSetupCodeCache(void) 11660c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 11760c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dvmCompilerTemplateStart(void); 11860c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dmvCompilerTemplateEnd(void); 11960c24f436d603c564d5351a6f81821f12635733cBen Cheng 12060c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Allocate the code cache */ 12160c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCache = mmap(0, CODE_CACHE_SIZE, 12260c24f436d603c564d5351a6f81821f12635733cBen Cheng PROT_READ | PROT_WRITE | PROT_EXEC, 12360c24f436d603c564d5351a6f81821f12635733cBen Cheng MAP_PRIVATE | MAP_ANON, -1, 0); 12460c24f436d603c564d5351a6f81821f12635733cBen Cheng if (gDvmJit.codeCache == MAP_FAILED) { 12560c24f436d603c564d5351a6f81821f12635733cBen Cheng LOGE("Failed to create the code cache: %s\n", strerror(errno)); 12660c24f436d603c564d5351a6f81821f12635733cBen Cheng return false; 12760c24f436d603c564d5351a6f81821f12635733cBen Cheng } 12860c24f436d603c564d5351a6f81821f12635733cBen Cheng 12960c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Copy the template code into the beginning of the code cache */ 13060c24f436d603c564d5351a6f81821f12635733cBen Cheng int templateSize = (intptr_t) dmvCompilerTemplateEnd - 13160c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) dvmCompilerTemplateStart; 13260c24f436d603c564d5351a6f81821f12635733cBen Cheng memcpy((void *) gDvmJit.codeCache, 13360c24f436d603c564d5351a6f81821f12635733cBen Cheng (void *) dvmCompilerTemplateStart, 13460c24f436d603c564d5351a6f81821f12635733cBen Cheng templateSize); 13560c24f436d603c564d5351a6f81821f12635733cBen Cheng 13660c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.templateSize = templateSize; 13760c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = templateSize; 13860c24f436d603c564d5351a6f81821f12635733cBen Cheng 13960c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Only flush the part in the code cache that is being used now */ 14060c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 14160c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + templateSize, 0); 14260c24f436d603c564d5351a6f81821f12635733cBen Cheng return true; 14360c24f436d603c564d5351a6f81821f12635733cBen Cheng} 14460c24f436d603c564d5351a6f81821f12635733cBen Cheng 14560c24f436d603c564d5351a6f81821f12635733cBen Chengstatic void resetCodeCache(void) 14660c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 14760c24f436d603c564d5351a6f81821f12635733cBen Cheng Thread* self = dvmThreadSelf(); 14860c24f436d603c564d5351a6f81821f12635733cBen Cheng Thread* thread; 14960c24f436d603c564d5351a6f81821f12635733cBen Cheng 15060c24f436d603c564d5351a6f81821f12635733cBen Cheng LOGD("Reset the JIT code cache (%d bytes used)", gDvmJit.codeCacheByteUsed); 15160c24f436d603c564d5351a6f81821f12635733cBen Cheng 15260c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Stop the world */ 15360c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmSuspendAllThreads(SUSPEND_FOR_CC_RESET); 15460c24f436d603c564d5351a6f81821f12635733cBen Cheng 15560c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Wipe out the returnAddr field that soon will point to stale code */ 15660c24f436d603c564d5351a6f81821f12635733cBen Cheng for (thread = gDvm.threadList; thread != NULL; thread = thread->next) { 15760c24f436d603c564d5351a6f81821f12635733cBen Cheng if (thread == self) 15860c24f436d603c564d5351a6f81821f12635733cBen Cheng continue; 15960c24f436d603c564d5351a6f81821f12635733cBen Cheng 16060c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Crawl the Dalvik stack frames */ 16160c24f436d603c564d5351a6f81821f12635733cBen Cheng StackSaveArea *ssaPtr = ((StackSaveArea *) thread->curFrame) - 1; 16260c24f436d603c564d5351a6f81821f12635733cBen Cheng while (ssaPtr != ((StackSaveArea *) NULL) - 1) { 16360c24f436d603c564d5351a6f81821f12635733cBen Cheng ssaPtr->returnAddr = NULL; 16460c24f436d603c564d5351a6f81821f12635733cBen Cheng ssaPtr = ((StackSaveArea *) ssaPtr->prevFrame) - 1; 16560c24f436d603c564d5351a6f81821f12635733cBen Cheng }; 16660c24f436d603c564d5351a6f81821f12635733cBen Cheng } 16760c24f436d603c564d5351a6f81821f12635733cBen Cheng 16860c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the JitEntry table contents to the initial unpopulated state */ 16960c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitResetTable(); 17060c24f436d603c564d5351a6f81821f12635733cBen Cheng 17160c24f436d603c564d5351a6f81821f12635733cBen Cheng#if 0 17260c24f436d603c564d5351a6f81821f12635733cBen Cheng /* 17360c24f436d603c564d5351a6f81821f12635733cBen Cheng * Uncomment the following code when testing/debugging. 17460c24f436d603c564d5351a6f81821f12635733cBen Cheng * 17560c24f436d603c564d5351a6f81821f12635733cBen Cheng * Wipe out the code cache content to force immediate crashes if 17660c24f436d603c564d5351a6f81821f12635733cBen Cheng * stale JIT'ed code is invoked. 17760c24f436d603c564d5351a6f81821f12635733cBen Cheng */ 17860c24f436d603c564d5351a6f81821f12635733cBen Cheng memset(gDvmJit.codeCache, 17960c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + gDvmJit.codeCacheByteUsed, 18060c24f436d603c564d5351a6f81821f12635733cBen Cheng 0); 18160c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 18260c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + gDvmJit.codeCacheByteUsed, 0); 18360c24f436d603c564d5351a6f81821f12635733cBen Cheng#endif 18460c24f436d603c564d5351a6f81821f12635733cBen Cheng 18560c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the current mark of used bytes to the end of template code */ 18660c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = gDvmJit.templateSize; 18760c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.numCompilations = 0; 18860c24f436d603c564d5351a6f81821f12635733cBen Cheng 18960c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the work queue */ 19060c24f436d603c564d5351a6f81821f12635733cBen Cheng memset(gDvmJit.compilerWorkQueue, 0, 19160c24f436d603c564d5351a6f81821f12635733cBen Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 19260c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 19360c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerQueueLength = 0; 19460c24f436d603c564d5351a6f81821f12635733cBen Cheng 19560c24f436d603c564d5351a6f81821f12635733cBen Cheng /* All clear now */ 19660c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheFull = false; 19760c24f436d603c564d5351a6f81821f12635733cBen Cheng 19860c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Resume all threads */ 19960c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmResumeAllThreads(SUSPEND_FOR_CC_RESET); 20060c24f436d603c564d5351a6f81821f12635733cBen Cheng} 20160c24f436d603c564d5351a6f81821f12635733cBen Cheng 202ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic void *compilerThreadStart(void *arg) 203ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 2045ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_VMWAIT); 2055ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 206b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee /* 207b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee * Wait a little before recieving translation requests on the assumption 208b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee * that process start-up code isn't worth compiling. The trace 209b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee * selector won't attempt to request a translation if the queue is 210b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee * filled, so we'll prevent by keeping the high water mark at zero 211b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee * for a shore time. 212b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee */ 213b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee assert(gDvmJit.compilerHighWater == 0); 214b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee usleep(1000); 215b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee gDvmJit.compilerHighWater = 216b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee COMPILER_WORK_QUEUE_SIZE - (COMPILER_WORK_QUEUE_SIZE/4); 217b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee 218ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 219ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 220ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Since the compiler thread will not touch any objects on the heap once 221ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * being created, we just fake its state as VMWAIT so that it can be a 222ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * bit late when there is suspend request pending. 223ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 224ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (!gDvmJit.haltCompilerThread) { 225ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (workQueueLength() == 0) { 226ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 227ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 228ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 229ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueActivity, 230ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng &gDvmJit.compilerLock); 231ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng continue; 232ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 233ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng do { 234ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = workDequeue(); 235ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 236ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Check whether there is a suspend request on me */ 237ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmCheckSuspendPending(NULL); 2382717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee /* Is JitTable filling up? */ 2392717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee if (gDvmJit.jitTableEntriesUsed > 2402717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee (gDvmJit.jitTableSize - gDvmJit.jitTableSize/4)) { 2412717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee dvmJitResizeJitTable(gDvmJit.jitTableSize * 2); 2422717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee } 243ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.haltCompilerThread) { 244ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGD("Compiler shutdown in progress - discarding request"); 245ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 246d726991ba52466cde88e37aba4de2395b62477faBill Buzbee /* If compilation failed, use interpret-template */ 247d726991ba52466cde88e37aba4de2395b62477faBill Buzbee if (!dvmCompilerDoWork(&work)) { 248d726991ba52466cde88e37aba4de2395b62477faBill Buzbee work.result.codeAddress = gDvmJit.interpretTemplate; 249ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 25060c24f436d603c564d5351a6f81821f12635733cBen Cheng if (!work.result.discardResult) { 25160c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitSetCodeAddr(work.pc, work.result.codeAddress, 25260c24f436d603c564d5351a6f81821f12635733cBen Cheng work.result.instructionSet); 25360c24f436d603c564d5351a6f81821f12635733cBen Cheng } 254ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 255ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng free(work.info); 256ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 25760c24f436d603c564d5351a6f81821f12635733cBen Cheng 25860c24f436d603c564d5351a6f81821f12635733cBen Cheng if (gDvmJit.codeCacheFull == true) { 25960c24f436d603c564d5351a6f81821f12635733cBen Cheng resetCodeCache(); 26060c24f436d603c564d5351a6f81821f12635733cBen Cheng } 261ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } while (workQueueLength() != 0); 262ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 263ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 264ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 265ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 266ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng 2675ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng /* 2685ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * As part of detaching the thread we need to call into Java code to update 2695ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * the ThreadGroup, and we should not be in VMWAIT state while executing 2705ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * interpreted code. 2715ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng */ 2725ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_RUNNING); 2735ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 274ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread shutting down\n"); 275ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return NULL; 276ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 277ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 278ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerStartup(void) 279ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 280ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Make sure the BBType enum is in sane state */ 2811465db5ee2d3c4c4dcc8e017a294172e858765cbBill Buzbee assert(kChainingCellNormal == 0); 282ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 283ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Architecture-specific chores to initialize */ 284ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerArchInit()) 285ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 286ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 287ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 288ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Setup the code cache if it is not done so already. For apps it should be 289ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * done by the Zygote already, but for command-line dalvikvm invocation we 290ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * need to do it here. 291ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 292ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.codeCache == NULL) { 293ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCompilerSetupCodeCache()) 294ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 295ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 296ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 297ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Allocate the initial arena block */ 298ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (dvmCompilerHeapInit() == false) { 299ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 300ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 301ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 302ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmInitMutex(&gDvmJit.compilerLock); 303ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueActivity, NULL); 304ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_init(&gDvmJit.compilerQueueEmpty, NULL); 305ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 306ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 307ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 308ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = false; 309ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 310ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Reset the work queue */ 311ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng memset(gDvmJit.compilerWorkQueue, 0, 312ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 313ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 314ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength = 0; 315b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee /* Block new entries via HighWater until compiler thread is ready */ 316b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee gDvmJit.compilerHighWater = 0; 317ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 318ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerHighWater < COMPILER_WORK_QUEUE_SIZE); 319ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (!dvmCreateInternalThread(&gDvmJit.compilerHandle, "Compiler", 320ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng compilerThreadStart, NULL)) { 321ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 322ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng goto fail; 323ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 324ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 3258b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng /* Track method-level compilation statistics */ 3268b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng gDvmJit.methodStatsTable = dvmHashTableCreate(32, NULL); 3278b258bfd8562edf1306ea6a5642595186f1f3f36Ben Cheng 328ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 329ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 330ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return true; 331ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 332ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengfail: 333ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return false; 334ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 335ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 336ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerShutdown(void) 337ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 338ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *threadReturn; 339ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 340ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerHandle) { 341ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 342ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = true; 343ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 344ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 345ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueActivity); 346ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 347ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 348ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng if (pthread_join(gDvmJit.compilerHandle, &threadReturn) != 0) 349ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGW("Compiler thread join failed\n"); 350ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng else 351ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread has shut down\n"); 352ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 353ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 354