Compiler.cpp revision 1357e94efecd485bda933270a9181035f6a39e09
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 52964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee/* 53964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Attempt to enqueue a work order, returning true if successful. 54964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * This routine will not block, but simply return if it couldn't 55964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * aquire the lock or if the queue is full. 561357e94efecd485bda933270a9181035f6a39e09Ben Cheng * 571357e94efecd485bda933270a9181035f6a39e09Ben Cheng * NOTE: Make sure that the caller frees the info pointer if the return value 581357e94efecd485bda933270a9181035f6a39e09Ben Cheng * is false. 59964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 60ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerWorkEnqueue(const u2 *pc, WorkOrderKind kind, void* info) 61ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 62ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 63ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int i; 64ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int numWork; 6560c24f436d603c564d5351a6f81821f12635733cBen Cheng bool result = true; 66ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 67964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (dvmTryLockMutex(&gDvmJit.compilerLock)) { 683e5cd17e4a0306dc976e1dc37b39d19dee4451a7Ben Cheng return false; // Couldn't acquire the lock 69964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 70ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 717a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* 726999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Return if queue or code cache is full. 737a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng */ 746999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng if (gDvmJit.compilerQueueLength == COMPILER_WORK_QUEUE_SIZE || 756999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheFull == true) { 7660c24f436d603c564d5351a6f81821f12635733cBen Cheng result = false; 77964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto unlockAndExit; 78ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 79ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 80ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng for (numWork = gDvmJit.compilerQueueLength, 81ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = gDvmJit.compilerWorkDequeueIndex; 82ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork > 0; 83ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork--) { 84ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Already enqueued */ 85ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkQueue[i++].pc == pc) 86964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto unlockAndExit; 87ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Wrap around */ 88ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (i == COMPILER_WORK_QUEUE_SIZE) 89ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = 0; 90ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 91ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 92ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng CompilerWorkOrder *newOrder = 93ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng &gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex]; 94ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->pc = pc; 95ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->kind = kind; 96ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->info = info; 97ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.codeAddress = NULL; 98ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.discardResult = 996999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng (kind == kWorkOrderTraceDebug) ? true : false; 10033672456e19bff9913b4a3459e6b8472f4c26c84Ben Cheng newOrder->result.requestingThread = dvmThreadSelf(); 10133672456e19bff9913b4a3459e6b8472f4c26c84Ben Cheng 102ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex++; 103ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkEnqueueIndex == COMPILER_WORK_QUEUE_SIZE) 104ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = 0; 105ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength++; 106ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueActivity); 107ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 108ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 109964a7b06a9134947b5985c7f712d18d57ed665d2Bill BuzbeeunlockAndExit: 110ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 11160c24f436d603c564d5351a6f81821f12635733cBen Cheng return result; 112ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 113ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 114ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng/* Block until queue length is 0 */ 115ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerDrainQueue(void) 116ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 117d726991ba52466cde88e37aba4de2395b62477faBill Buzbee int oldStatus = dvmChangeStatus(NULL, THREAD_VMWAIT); 118ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 119ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (workQueueLength() != 0 && !gDvmJit.haltCompilerThread) { 120ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueEmpty, &gDvmJit.compilerLock); 121ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 122ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 123d726991ba52466cde88e37aba4de2395b62477faBill Buzbee dvmChangeStatus(NULL, oldStatus); 124ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 125ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 12660c24f436d603c564d5351a6f81821f12635733cBen Chengbool dvmCompilerSetupCodeCache(void) 12760c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 12860c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dvmCompilerTemplateStart(void); 12960c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dmvCompilerTemplateEnd(void); 13060c24f436d603c564d5351a6f81821f12635733cBen Cheng 13160c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Allocate the code cache */ 1327b133ef7c84e68c3c4042176d830ea5b52e84139Ben Cheng gDvmJit.codeCache = mmap(0, gDvmJit.codeCacheSize, 13360c24f436d603c564d5351a6f81821f12635733cBen Cheng PROT_READ | PROT_WRITE | PROT_EXEC, 13460c24f436d603c564d5351a6f81821f12635733cBen Cheng MAP_PRIVATE | MAP_ANON, -1, 0); 13560c24f436d603c564d5351a6f81821f12635733cBen Cheng if (gDvmJit.codeCache == MAP_FAILED) { 13660c24f436d603c564d5351a6f81821f12635733cBen Cheng LOGE("Failed to create the code cache: %s\n", strerror(errno)); 13760c24f436d603c564d5351a6f81821f12635733cBen Cheng return false; 13860c24f436d603c564d5351a6f81821f12635733cBen Cheng } 13960c24f436d603c564d5351a6f81821f12635733cBen Cheng 1406999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng // STOPSHIP - for debugging only 1416999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng LOGD("Code cache starts at %p", gDvmJit.codeCache); 1427a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 14360c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Copy the template code into the beginning of the code cache */ 14460c24f436d603c564d5351a6f81821f12635733cBen Cheng int templateSize = (intptr_t) dmvCompilerTemplateEnd - 14560c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) dvmCompilerTemplateStart; 14660c24f436d603c564d5351a6f81821f12635733cBen Cheng memcpy((void *) gDvmJit.codeCache, 14760c24f436d603c564d5351a6f81821f12635733cBen Cheng (void *) dvmCompilerTemplateStart, 14860c24f436d603c564d5351a6f81821f12635733cBen Cheng templateSize); 14960c24f436d603c564d5351a6f81821f12635733cBen Cheng 15060c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.templateSize = templateSize; 15160c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = templateSize; 15260c24f436d603c564d5351a6f81821f12635733cBen Cheng 15360c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Only flush the part in the code cache that is being used now */ 15460c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 15560c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + templateSize, 0); 15660c24f436d603c564d5351a6f81821f12635733cBen Cheng return true; 15760c24f436d603c564d5351a6f81821f12635733cBen Cheng} 15860c24f436d603c564d5351a6f81821f12635733cBen Cheng 1597a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Chengstatic void crawlDalvikStack(Thread *thread, bool print) 1607a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng{ 1617a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng void *fp = thread->curFrame; 1627a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng StackSaveArea* saveArea = NULL; 1637a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng int stackLevel = 0; 1647a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 1657a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (print) { 1667a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD("Crawling tid %d (%s / %p %s)", thread->systemTid, 1677a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng dvmGetThreadStatusStr(thread->status), 1687a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng thread->inJitCodeCache, 1697a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng thread->inJitCodeCache ? "jit" : "interp"); 1707a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1717a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* Crawl the Dalvik stack frames to clear the returnAddr field */ 1727a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng while (fp != NULL) { 1737a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea = SAVEAREA_FROM_FP(fp); 1747a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 1757a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (print) { 1767a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (dvmIsBreakFrame(fp)) { 1777a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD(" #%d: break frame (%p)", 1787a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel, saveArea->returnAddr); 1797a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1807a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng else { 1817a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD(" #%d: %s.%s%s (%p)", 1827a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel, 1837a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->method->clazz->descriptor, 1847a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->method->name, 1857a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng dvmIsNativeMethod(saveArea->method) ? 1867a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng " (native)" : "", 1877a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->returnAddr); 1887a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1897a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1907a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel++; 1917a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->returnAddr = NULL; 1927a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng assert(fp != saveArea->prevFrame); 1937a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng fp = saveArea->prevFrame; 1947a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1957a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* Make sure the stack is fully unwound to the bottom */ 1967a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng assert(saveArea == NULL || 1977a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng (u1 *) (saveArea+1) == thread->interpStackStart); 1987a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng} 1997a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 20060c24f436d603c564d5351a6f81821f12635733cBen Chengstatic void resetCodeCache(void) 20160c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 20260c24f436d603c564d5351a6f81821f12635733cBen Cheng Thread* thread; 2037a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng u8 startTime = dvmGetRelativeTimeUsec(); 2047a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng int inJit = 0; 2056999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng int byteUsed = gDvmJit.codeCacheByteUsed; 20660c24f436d603c564d5351a6f81821f12635733cBen Cheng 2077a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* If any thread is found stuck in the JIT state, don't reset the cache */ 20860c24f436d603c564d5351a6f81821f12635733cBen Cheng for (thread = gDvm.threadList; thread != NULL; thread = thread->next) { 2096999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* 2106999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Crawl the stack to wipe out the returnAddr field so that 2116999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 1) the soon-to-be-deleted code in the JIT cache won't be used 2126999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 2) or the thread stuck in the JIT land will soon return 2136999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * to the interpreter land 2146999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 2156999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng crawlDalvikStack(thread, false); 2167a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (thread->inJitCodeCache) { 2177a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng inJit++; 2187a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2197a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 22060c24f436d603c564d5351a6f81821f12635733cBen Cheng 2217a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (inJit) { 2226999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng LOGD("JIT code cache reset delayed (%d bytes %d/%d)", 2236999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheByteUsed, gDvmJit.numCodeCacheReset, 2246999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng ++gDvmJit.numCodeCacheResetDelayed); 2256999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng return; 2267a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2277a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 2286999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Lock the mutex to clean up the work queue */ 2296999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 2306999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 2316999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Drain the work queue to free the work orders */ 2327a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng while (workQueueLength()) { 2337a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng CompilerWorkOrder work = workDequeue(); 2347a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng free(work.info); 2357a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2367a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 23760c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the JitEntry table contents to the initial unpopulated state */ 23860c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitResetTable(); 23960c24f436d603c564d5351a6f81821f12635733cBen Cheng 24060c24f436d603c564d5351a6f81821f12635733cBen Cheng /* 24160c24f436d603c564d5351a6f81821f12635733cBen Cheng * Wipe out the code cache content to force immediate crashes if 24260c24f436d603c564d5351a6f81821f12635733cBen Cheng * stale JIT'ed code is invoked. 24360c24f436d603c564d5351a6f81821f12635733cBen Cheng */ 2447a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng memset((char *) gDvmJit.codeCache + gDvmJit.templateSize, 2457a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 0, 2467a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng gDvmJit.codeCacheByteUsed - gDvmJit.templateSize); 24760c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 24860c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + gDvmJit.codeCacheByteUsed, 0); 24960c24f436d603c564d5351a6f81821f12635733cBen Cheng 25060c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the current mark of used bytes to the end of template code */ 25160c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = gDvmJit.templateSize; 25260c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.numCompilations = 0; 25360c24f436d603c564d5351a6f81821f12635733cBen Cheng 25460c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the work queue */ 25560c24f436d603c564d5351a6f81821f12635733cBen Cheng memset(gDvmJit.compilerWorkQueue, 0, 25660c24f436d603c564d5351a6f81821f12635733cBen Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 25760c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 25860c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerQueueLength = 0; 25960c24f436d603c564d5351a6f81821f12635733cBen Cheng 2606999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Reset the IC patch work queue */ 2616999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmLockMutex(&gDvmJit.compilerICPatchLock); 2626999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.compilerICPatchIndex = 0; 2636999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmUnlockMutex(&gDvmJit.compilerICPatchLock); 2646999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 26560c24f436d603c564d5351a6f81821f12635733cBen Cheng /* All clear now */ 26660c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheFull = false; 26760c24f436d603c564d5351a6f81821f12635733cBen Cheng 2686999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 2697a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 2706999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng LOGD("JIT code cache reset in %lld ms (%d bytes %d/%d)", 2716999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng (dvmGetRelativeTimeUsec() - startTime) / 1000, 2726999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng byteUsed, ++gDvmJit.numCodeCacheReset, 2736999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.numCodeCacheResetDelayed); 2746999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng} 2756999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 2766999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng/* 2776999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Perform actions that are only safe when all threads are suspended. Currently 2786999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * we do: 2796999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 1) Check if the code cache is full. If so reset it and restart populating it 2806999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * from scratch. 2816999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 2) Patch predicted chaining cells by consuming recorded work orders. 2826999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 2836999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Chengvoid dvmCompilerPerformSafePointChecks(void) 2846999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng{ 2856999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng if (gDvmJit.codeCacheFull) { 2866999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng resetCodeCache(); 2876999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng } 2886999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmCompilerPatchInlineCache(); 28960c24f436d603c564d5351a6f81821f12635733cBen Cheng} 29060c24f436d603c564d5351a6f81821f12635733cBen Cheng 291964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbeebool compilerThreadStartup(void) 292964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee{ 293964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee JitEntry *pJitTable = NULL; 294964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee unsigned char *pJitProfTable = NULL; 295964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee unsigned int i; 296964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 297964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!dvmCompilerArchInit()) 298964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 299964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 300964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 301964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Setup the code cache if we have not inherited a valid code cache 302964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * from the zygote. 303964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 304964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (gDvmJit.codeCache == NULL) { 305964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!dvmCompilerSetupCodeCache()) 306964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 307964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 308964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 309964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Allocate the initial arena block */ 310964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (dvmCompilerHeapInit() == false) { 311964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 312964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 313964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 314964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmLockMutex(&gDvmJit.compilerLock); 315964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 3161357e94efecd485bda933270a9181035f6a39e09Ben Cheng#if defined(WITH_JIT_TUNING) 317964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Track method-level compilation statistics */ 318964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.methodStatsTable = dvmHashTableCreate(32, NULL); 3191357e94efecd485bda933270a9181035f6a39e09Ben Cheng#endif 320964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 321964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.compilerLock); 322964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 323964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Set up the JitTable */ 324964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 325964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Power of 2? */ 326964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee assert(gDvmJit.jitTableSize && 327964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee !(gDvmJit.jitTableSize & (gDvmJit.jitTableSize - 1))); 328964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 329964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmInitMutex(&gDvmJit.tableLock); 330964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmLockMutex(&gDvmJit.tableLock); 331964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitTable = (JitEntry*) 332964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee calloc(gDvmJit.jitTableSize, sizeof(*pJitTable)); 333964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!pJitTable) { 334964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee LOGE("jit table allocation failed\n"); 335964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 336964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 337964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 338964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 339964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * NOTE: the profile table must only be allocated once, globally. 340964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Profiling is turned on and off by nulling out gDvm.pJitProfTable 341964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * and then restoring its original value. However, this action 342964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * is not syncronized for speed so threads may continue to hold 343964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * and update the profile table after profiling has been turned 344964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * off by null'ng the global pointer. Be aware. 345964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 346964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitProfTable = (unsigned char *)malloc(JIT_PROF_SIZE); 347964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!pJitProfTable) { 348964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee LOGE("jit prof table allocation failed\n"); 349964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 350964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 351964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 352964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee memset(pJitProfTable, gDvmJit.threshold, JIT_PROF_SIZE); 353964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee for (i=0; i < gDvmJit.jitTableSize; i++) { 354964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitTable[i].u.info.chain = gDvmJit.jitTableSize; 355964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 356964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Is chain field wide enough for termination pattern? */ 357964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee assert(pJitTable[0].u.info.chain == gDvmJit.jitTableSize); 358964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 359964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.pJitEntryTable = pJitTable; 360964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.jitTableMask = gDvmJit.jitTableSize - 1; 361964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.jitTableEntriesUsed = 0; 362964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.compilerHighWater = 363964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee COMPILER_WORK_QUEUE_SIZE - (COMPILER_WORK_QUEUE_SIZE/4); 364964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.pProfTable = pJitProfTable; 36506bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTableCopy = pJitProfTable; 366964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 367964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 368964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Signal running threads to refresh their cached pJitTable pointers */ 369964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmSuspendAllThreads(SUSPEND_FOR_REFRESH); 370964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmResumeAllThreads(SUSPEND_FOR_REFRESH); 371964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return true; 372964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 373964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbeefail: 374964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return false; 375964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 376964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee} 377964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 378ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic void *compilerThreadStart(void *arg) 379ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 38094d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee int ret; 38194d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee struct timespec ts; 38294d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 3835ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_VMWAIT); 3845ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 385b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee /* 386eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * If we're not running stand-alone, wait a little before 387eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * recieving translation requests on the assumption that process start 388eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * up code isn't worth compiling. We'll resume when the framework 389eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * signals us that the first screen draw has happened, or the timer 390eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * below expires (to catch daemons). 391b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee */ 392eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee if (gDvmJit.runningInAndroidFramework) { 393eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee dvmLockMutex(&gDvmJit.compilerLock); 394eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee // TUNING: experiment with the delay & perhaps make it target-specific 395eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee dvmRelativeCondWait(&gDvmJit.compilerQueueActivity, 396eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee &gDvmJit.compilerLock, 3000, 0); 39794d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmUnlockMutex(&gDvmJit.compilerLock); 398eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee if (gDvmJit.haltCompilerThread) { 399eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee return NULL; 400eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee } 40194d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee } 40294d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 403964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee compilerThreadStartup(); 404b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee 405ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 406ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 407ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Since the compiler thread will not touch any objects on the heap once 408ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * being created, we just fake its state as VMWAIT so that it can be a 409ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * bit late when there is suspend request pending. 410ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 411ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (!gDvmJit.haltCompilerThread) { 412ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (workQueueLength() == 0) { 413ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 414ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 415ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 416ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueActivity, 417ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng &gDvmJit.compilerLock); 418ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng continue; 419ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 420ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng do { 421ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = workDequeue(); 422ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 423964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 424964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Check whether there is a suspend request on me. This 425964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * is necessary to allow a clean shutdown. 426964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 427ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmCheckSuspendPending(NULL); 4282717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee /* Is JitTable filling up? */ 4292717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee if (gDvmJit.jitTableEntriesUsed > 4302717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee (gDvmJit.jitTableSize - gDvmJit.jitTableSize/4)) { 4316999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng bool resizeFail = 4326999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmJitResizeJitTable(gDvmJit.jitTableSize * 2); 4336999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* 4346999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * If the jit table is full, consider it's time to reset 4356999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * the code cache too. 4366999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 4376999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheFull |= resizeFail; 4382717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee } 439ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.haltCompilerThread) { 440ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGD("Compiler shutdown in progress - discarding request"); 4416999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng } else if (!gDvmJit.codeCacheFull) { 442d726991ba52466cde88e37aba4de2395b62477faBill Buzbee /* If compilation failed, use interpret-template */ 443d726991ba52466cde88e37aba4de2395b62477faBill Buzbee if (!dvmCompilerDoWork(&work)) { 444d726991ba52466cde88e37aba4de2395b62477faBill Buzbee work.result.codeAddress = gDvmJit.interpretTemplate; 445ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 44660c24f436d603c564d5351a6f81821f12635733cBen Cheng if (!work.result.discardResult) { 44760c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitSetCodeAddr(work.pc, work.result.codeAddress, 44860c24f436d603c564d5351a6f81821f12635733cBen Cheng work.result.instructionSet); 44960c24f436d603c564d5351a6f81821f12635733cBen Cheng } 450ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 451ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng free(work.info); 452ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 453ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } while (workQueueLength() != 0); 454ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 455ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 456ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 457ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 458ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng 4595ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng /* 4605ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * As part of detaching the thread we need to call into Java code to update 4615ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * the ThreadGroup, and we should not be in VMWAIT state while executing 4625ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * interpreted code. 4635ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng */ 4645ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_RUNNING); 4655ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 46643eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden if (gDvm.verboseShutdown) 46743eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden LOGD("Compiler thread shutting down\n"); 468ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return NULL; 469ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 470ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 471ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerStartup(void) 472ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 47394d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 47494d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmInitMutex(&gDvmJit.compilerLock); 4756999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmInitMutex(&gDvmJit.compilerICPatchLock); 47694d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmLockMutex(&gDvmJit.compilerLock); 47794d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee pthread_cond_init(&gDvmJit.compilerQueueActivity, NULL); 47894d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee pthread_cond_init(&gDvmJit.compilerQueueEmpty, NULL); 47994d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 48094d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee /* Reset the work queue */ 48194d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 48294d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee gDvmJit.compilerQueueLength = 0; 48394d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmUnlockMutex(&gDvmJit.compilerLock); 48494d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 485ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 48694d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee * Defer rest of initialization until we're sure JIT'ng makes sense. Launch 487964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * the compiler thread, which will do the real initialization if and 488964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * when it is signalled to do so. 489ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 490964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return dvmCreateInternalThread(&gDvmJit.compilerHandle, "Compiler", 491964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee compilerThreadStart, NULL); 492ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 493ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 494ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerShutdown(void) 495ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 496ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *threadReturn; 497ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 498ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerHandle) { 499ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 500ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = true; 501ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 502ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 503ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueActivity); 504ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 505ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 506ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng if (pthread_join(gDvmJit.compilerHandle, &threadReturn) != 0) 507ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGW("Compiler thread join failed\n"); 50843eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden else if (gDvm.verboseShutdown) 509ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread has shut down\n"); 510ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 51106bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 51296cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee if (gDvm.verboseShutdown) 51396cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee dvmCompilerDumpStats(); 51496cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee 51596cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee dvmDestroyMutex(&gDvmJit.tableLock); 51696cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee dvmDestroyMutex(&gDvmJit.compilerLock); 51796cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee dvmDestroyMutex(&gDvmJit.compilerICPatchLock); 51896cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee 51996cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee if (gDvmJit.pJitEntryTable) { 52096cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee free(gDvmJit.pJitEntryTable); 52196cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee gDvmJit.pJitEntryTable = NULL; 52296cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee } 52396cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee 52496cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee if (gDvmJit.pProfTable) { 52596cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee free(gDvmJit.pProfTable); 52696cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee gDvmJit.pProfTable = NULL; 52796cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee } 52896cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee 52996cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee} 53006bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 53106bb83906737fec543c86ab36f450cc62066b58aBill Buzbeevoid dvmCompilerStateRefresh() 53206bb83906737fec543c86ab36f450cc62066b58aBill Buzbee{ 53306bb83906737fec543c86ab36f450cc62066b58aBill Buzbee bool jitActive; 53406bb83906737fec543c86ab36f450cc62066b58aBill Buzbee bool jitActivate; 5353e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee bool needUnchain = false; 53606bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 53706bb83906737fec543c86ab36f450cc62066b58aBill Buzbee dvmLockMutex(&gDvmJit.tableLock); 53806bb83906737fec543c86ab36f450cc62066b58aBill Buzbee jitActive = gDvmJit.pProfTable != NULL; 53906bb83906737fec543c86ab36f450cc62066b58aBill Buzbee jitActivate = !(gDvm.debuggerActive || (gDvm.activeProfilers > 0)); 54006bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 54106bb83906737fec543c86ab36f450cc62066b58aBill Buzbee if (jitActivate && !jitActive) { 54206bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTable = gDvmJit.pProfTableCopy; 54306bb83906737fec543c86ab36f450cc62066b58aBill Buzbee } else if (!jitActivate && jitActive) { 54406bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTable = NULL; 5453e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee needUnchain = true; 54606bb83906737fec543c86ab36f450cc62066b58aBill Buzbee } 5473e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 5483e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee if (needUnchain) 5493e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee dvmJitUnchainAll(); 55006bb83906737fec543c86ab36f450cc62066b58aBill Buzbee} 551