Compiler.cpp revision 978738d2cbf9d08fa78c65762eaac3351ab76b9a
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> 197c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng#include <cutils/ashmem.h> 20ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 21ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "Dalvik.h" 22ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "interp/Jit.h" 23ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng#include "CompilerInternals.h" 24ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 25ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic inline bool workQueueLength(void) 26ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 27ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return gDvmJit.compilerQueueLength; 28ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 29ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 30ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic CompilerWorkOrder workDequeue(void) 31ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 32ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex].kind 33ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng != kWorkOrderInvalid); 34ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = 35ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex]; 36ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkDequeueIndex++].kind = 37ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng kWorkOrderInvalid; 38ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkDequeueIndex == COMPILER_WORK_QUEUE_SIZE) { 39ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkDequeueIndex = 0; 40ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 41ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength--; 42f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee if (gDvmJit.compilerQueueLength == 0) { 43f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee int cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 44f9f33287693f9f9aa44318036b8aab627bd21a32Bill Buzbee } 45ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 46ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Remember the high water mark of the queue length */ 47ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerQueueLength > gDvmJit.compilerMaxQueued) 48ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerMaxQueued = gDvmJit.compilerQueueLength; 49ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 50ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return work; 51ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 52ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 53964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee/* 54964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Attempt to enqueue a work order, returning true if successful. 55964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * This routine will not block, but simply return if it couldn't 56964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * aquire the lock or if the queue is full. 571357e94efecd485bda933270a9181035f6a39e09Ben Cheng * 581357e94efecd485bda933270a9181035f6a39e09Ben Cheng * NOTE: Make sure that the caller frees the info pointer if the return value 591357e94efecd485bda933270a9181035f6a39e09Ben Cheng * is false. 60964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 61ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerWorkEnqueue(const u2 *pc, WorkOrderKind kind, void* info) 62ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 63ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 64ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int i; 65ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int numWork; 6660c24f436d603c564d5351a6f81821f12635733cBen Cheng bool result = true; 67ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 68964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (dvmTryLockMutex(&gDvmJit.compilerLock)) { 693e5cd17e4a0306dc976e1dc37b39d19dee4451a7Ben Cheng return false; // Couldn't acquire the lock 70964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 71ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 727a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* 736999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Return if queue or code cache is full. 747a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng */ 756999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng if (gDvmJit.compilerQueueLength == COMPILER_WORK_QUEUE_SIZE || 766999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheFull == true) { 7760c24f436d603c564d5351a6f81821f12635733cBen Cheng result = false; 78964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto unlockAndExit; 79ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 80ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 81ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng for (numWork = gDvmJit.compilerQueueLength, 82ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = gDvmJit.compilerWorkDequeueIndex; 83ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork > 0; 84ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng numWork--) { 85ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Already enqueued */ 86ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkQueue[i++].pc == pc) 87964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto unlockAndExit; 88ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* Wrap around */ 89ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (i == COMPILER_WORK_QUEUE_SIZE) 90ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng i = 0; 91ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 92ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 93ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng CompilerWorkOrder *newOrder = 94ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng &gDvmJit.compilerWorkQueue[gDvmJit.compilerWorkEnqueueIndex]; 95ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->pc = pc; 96ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->kind = kind; 97ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->info = info; 98ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.codeAddress = NULL; 99ccd6c0102d1f898aaea1c94761167fdd083b5275Ben Cheng newOrder->result.discardResult = 1001f74863d3e0f19930818398f375ebf1cf2d78969Bill Buzbee (kind == kWorkOrderTraceDebug) ? true : false; 10133672456e19bff9913b4a3459e6b8472f4c26c84Ben Cheng newOrder->result.requestingThread = dvmThreadSelf(); 10233672456e19bff9913b4a3459e6b8472f4c26c84Ben Cheng 103ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex++; 104ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerWorkEnqueueIndex == COMPILER_WORK_QUEUE_SIZE) 105ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerWorkEnqueueIndex = 0; 106ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.compilerQueueLength++; 107ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueActivity); 108ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 109ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 110964a7b06a9134947b5985c7f712d18d57ed665d2Bill BuzbeeunlockAndExit: 111ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 11260c24f436d603c564d5351a6f81821f12635733cBen Cheng return result; 113ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 114ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 11511d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng/* Block until the queue length is 0, or there is a pending suspend request */ 116ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerDrainQueue(void) 117ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 11811d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng Thread *self = dvmThreadSelf(); 11911d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng 120ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 12111d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng while (workQueueLength() != 0 && !gDvmJit.haltCompilerThread && 12211d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng self->suspendCount == 0) { 123812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng /* 124812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng * Use timed wait here - more than one mutator threads may be blocked 125812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng * but the compiler thread will only signal once when the queue is 126812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng * emptied. Furthermore, the compiler thread may have been shutdown 127812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng * so the blocked thread may never get the wakeup signal. 128812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng */ 129812e6b1a6485e4468bc88fd69e9304817b8192ddBen Cheng dvmRelativeCondWait(&gDvmJit.compilerQueueEmpty, &gDvmJit.compilerLock, 1000, 0); 130ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 131ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 132ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 133ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 13460c24f436d603c564d5351a6f81821f12635733cBen Chengbool dvmCompilerSetupCodeCache(void) 13560c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 13660c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dvmCompilerTemplateStart(void); 13760c24f436d603c564d5351a6f81821f12635733cBen Cheng extern void dmvCompilerTemplateEnd(void); 1387c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng int fd; 13960c24f436d603c564d5351a6f81821f12635733cBen Cheng 14060c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Allocate the code cache */ 1417c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng fd = ashmem_create_region("dalvik-jit-code-cache", gDvmJit.codeCacheSize); 1427c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng if (fd < 0) { 1437c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng LOGE("Could not create %u-byte ashmem region for the JIT code cache", 1447c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng gDvmJit.codeCacheSize); 1457c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng return false; 1467c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng } 1477c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng gDvmJit.codeCache = mmap(NULL, gDvmJit.codeCacheSize, 1487c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng PROT_READ | PROT_WRITE | PROT_EXEC, 1497c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng MAP_PRIVATE , fd, 0); 1507c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng close(fd); 15160c24f436d603c564d5351a6f81821f12635733cBen Cheng if (gDvmJit.codeCache == MAP_FAILED) { 1527c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng LOGE("Failed to mmap the JIT code cache: %s\n", strerror(errno)); 15360c24f436d603c564d5351a6f81821f12635733cBen Cheng return false; 15460c24f436d603c564d5351a6f81821f12635733cBen Cheng } 15560c24f436d603c564d5351a6f81821f12635733cBen Cheng 1567c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng /* This can be found through "dalvik-jit-code-cache" in /proc/<pid>/maps */ 1577c4afdb7e96bb74909f111f08741aed261d191f8Ben Cheng // LOGD("Code cache starts at %p", gDvmJit.codeCache); 1587a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 15960c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Copy the template code into the beginning of the code cache */ 16060c24f436d603c564d5351a6f81821f12635733cBen Cheng int templateSize = (intptr_t) dmvCompilerTemplateEnd - 16160c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) dvmCompilerTemplateStart; 16260c24f436d603c564d5351a6f81821f12635733cBen Cheng memcpy((void *) gDvmJit.codeCache, 16360c24f436d603c564d5351a6f81821f12635733cBen Cheng (void *) dvmCompilerTemplateStart, 16460c24f436d603c564d5351a6f81821f12635733cBen Cheng templateSize); 16560c24f436d603c564d5351a6f81821f12635733cBen Cheng 16672621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng /* 16772621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng * Work around a CPU bug by keeping the 32-bit ARM handler code in its own 16872621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng * page. 16972621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng */ 17072621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng if (dvmCompilerInstructionSet() == DALVIK_JIT_THUMB2) { 17172621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng templateSize = (templateSize + 4095) & ~4095; 17272621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng } 17372621c9d3c175b0f9b239de5b0bcd83c7e5984e8Ben Cheng 17460c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.templateSize = templateSize; 17560c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = templateSize; 17660c24f436d603c564d5351a6f81821f12635733cBen Cheng 17760c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Only flush the part in the code cache that is being used now */ 17860c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 17960c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + templateSize, 0); 18060c24f436d603c564d5351a6f81821f12635733cBen Cheng return true; 18160c24f436d603c564d5351a6f81821f12635733cBen Cheng} 18260c24f436d603c564d5351a6f81821f12635733cBen Cheng 1837a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Chengstatic void crawlDalvikStack(Thread *thread, bool print) 1847a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng{ 1857a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng void *fp = thread->curFrame; 1867a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng StackSaveArea* saveArea = NULL; 1877a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng int stackLevel = 0; 1887a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 1897a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (print) { 1907a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD("Crawling tid %d (%s / %p %s)", thread->systemTid, 1917a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng dvmGetThreadStatusStr(thread->status), 1927a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng thread->inJitCodeCache, 1937a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng thread->inJitCodeCache ? "jit" : "interp"); 1947a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 1957a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* Crawl the Dalvik stack frames to clear the returnAddr field */ 1967a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng while (fp != NULL) { 1977a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea = SAVEAREA_FROM_FP(fp); 1987a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 1997a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (print) { 2007a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (dvmIsBreakFrame(fp)) { 2017a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD(" #%d: break frame (%p)", 2027a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel, saveArea->returnAddr); 2037a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2047a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng else { 2057a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng LOGD(" #%d: %s.%s%s (%p)", 2067a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel, 2077a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->method->clazz->descriptor, 2087a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->method->name, 2097a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng dvmIsNativeMethod(saveArea->method) ? 2107a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng " (native)" : "", 2117a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->returnAddr); 2127a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2137a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2147a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng stackLevel++; 2157a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng saveArea->returnAddr = NULL; 2167a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng assert(fp != saveArea->prevFrame); 2177a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng fp = saveArea->prevFrame; 2187a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2197a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* Make sure the stack is fully unwound to the bottom */ 2207a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng assert(saveArea == NULL || 2217a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng (u1 *) (saveArea+1) == thread->interpStackStart); 2227a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng} 2237a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 22460c24f436d603c564d5351a6f81821f12635733cBen Chengstatic void resetCodeCache(void) 22560c24f436d603c564d5351a6f81821f12635733cBen Cheng{ 22660c24f436d603c564d5351a6f81821f12635733cBen Cheng Thread* thread; 2277a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng u8 startTime = dvmGetRelativeTimeUsec(); 2287a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng int inJit = 0; 2296999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng int byteUsed = gDvmJit.codeCacheByteUsed; 23060c24f436d603c564d5351a6f81821f12635733cBen Cheng 2317a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng /* If any thread is found stuck in the JIT state, don't reset the cache */ 23260c24f436d603c564d5351a6f81821f12635733cBen Cheng for (thread = gDvm.threadList; thread != NULL; thread = thread->next) { 2336999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* 2346999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Crawl the stack to wipe out the returnAddr field so that 2356999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 1) the soon-to-be-deleted code in the JIT cache won't be used 2366999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 2) or the thread stuck in the JIT land will soon return 2376999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * to the interpreter land 2386999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 2396999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng crawlDalvikStack(thread, false); 2407a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (thread->inJitCodeCache) { 2417a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng inJit++; 2427a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2437a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 24460c24f436d603c564d5351a6f81821f12635733cBen Cheng 2457a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng if (inJit) { 2466999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng LOGD("JIT code cache reset delayed (%d bytes %d/%d)", 2476999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheByteUsed, gDvmJit.numCodeCacheReset, 2486999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng ++gDvmJit.numCodeCacheResetDelayed); 2496999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng return; 2507a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2517a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 2526999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Lock the mutex to clean up the work queue */ 2536999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 2546999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 2556999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Drain the work queue to free the work orders */ 2567a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng while (workQueueLength()) { 2577a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng CompilerWorkOrder work = workDequeue(); 2587a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng free(work.info); 2597a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng } 2607a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 26160c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the JitEntry table contents to the initial unpopulated state */ 26260c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitResetTable(); 26360c24f436d603c564d5351a6f81821f12635733cBen Cheng 26460c24f436d603c564d5351a6f81821f12635733cBen Cheng /* 26560c24f436d603c564d5351a6f81821f12635733cBen Cheng * Wipe out the code cache content to force immediate crashes if 26660c24f436d603c564d5351a6f81821f12635733cBen Cheng * stale JIT'ed code is invoked. 26760c24f436d603c564d5351a6f81821f12635733cBen Cheng */ 2687a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng memset((char *) gDvmJit.codeCache + gDvmJit.templateSize, 2697a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 0, 2707a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng gDvmJit.codeCacheByteUsed - gDvmJit.templateSize); 27160c24f436d603c564d5351a6f81821f12635733cBen Cheng cacheflush((intptr_t) gDvmJit.codeCache, 27260c24f436d603c564d5351a6f81821f12635733cBen Cheng (intptr_t) gDvmJit.codeCache + gDvmJit.codeCacheByteUsed, 0); 27360c24f436d603c564d5351a6f81821f12635733cBen Cheng 27460c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the current mark of used bytes to the end of template code */ 27560c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheByteUsed = gDvmJit.templateSize; 27660c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.numCompilations = 0; 27760c24f436d603c564d5351a6f81821f12635733cBen Cheng 27860c24f436d603c564d5351a6f81821f12635733cBen Cheng /* Reset the work queue */ 27960c24f436d603c564d5351a6f81821f12635733cBen Cheng memset(gDvmJit.compilerWorkQueue, 0, 28060c24f436d603c564d5351a6f81821f12635733cBen Cheng sizeof(CompilerWorkOrder) * COMPILER_WORK_QUEUE_SIZE); 28160c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 28260c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.compilerQueueLength = 0; 28360c24f436d603c564d5351a6f81821f12635733cBen Cheng 2846999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* Reset the IC patch work queue */ 2856999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmLockMutex(&gDvmJit.compilerICPatchLock); 2866999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.compilerICPatchIndex = 0; 2876999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmUnlockMutex(&gDvmJit.compilerICPatchLock); 2886999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 28960c24f436d603c564d5351a6f81821f12635733cBen Cheng /* All clear now */ 29060c24f436d603c564d5351a6f81821f12635733cBen Cheng gDvmJit.codeCacheFull = false; 29160c24f436d603c564d5351a6f81821f12635733cBen Cheng 2926999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 2937a0bcd0de6c4da6499a088a18d1750e51204c2a6Ben Cheng 2946999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng LOGD("JIT code cache reset in %lld ms (%d bytes %d/%d)", 2956999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng (dvmGetRelativeTimeUsec() - startTime) / 1000, 2966999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng byteUsed, ++gDvmJit.numCodeCacheReset, 2976999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.numCodeCacheResetDelayed); 2986999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng} 2996999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng 3006999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng/* 3016999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * Perform actions that are only safe when all threads are suspended. Currently 3026999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * we do: 3036999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 1) Check if the code cache is full. If so reset it and restart populating it 3046999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * from scratch. 3056999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * 2) Patch predicted chaining cells by consuming recorded work orders. 3066999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 3076999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Chengvoid dvmCompilerPerformSafePointChecks(void) 3086999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng{ 3096999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng if (gDvmJit.codeCacheFull) { 3106999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng resetCodeCache(); 3116999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng } 3126999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmCompilerPatchInlineCache(); 31360c24f436d603c564d5351a6f81821f12635733cBen Cheng} 31460c24f436d603c564d5351a6f81821f12635733cBen Cheng 315964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbeebool compilerThreadStartup(void) 316964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee{ 317964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee JitEntry *pJitTable = NULL; 318964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee unsigned char *pJitProfTable = NULL; 319964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee unsigned int i; 320964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 321964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!dvmCompilerArchInit()) 322964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 323964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 324964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 325964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Setup the code cache if we have not inherited a valid code cache 326964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * from the zygote. 327964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 328964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (gDvmJit.codeCache == NULL) { 329964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!dvmCompilerSetupCodeCache()) 330964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 331964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 332964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 333964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Allocate the initial arena block */ 334964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (dvmCompilerHeapInit() == false) { 335964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 336964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 337964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 338964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmLockMutex(&gDvmJit.compilerLock); 339964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 3401357e94efecd485bda933270a9181035f6a39e09Ben Cheng#if defined(WITH_JIT_TUNING) 341964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Track method-level compilation statistics */ 342964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.methodStatsTable = dvmHashTableCreate(32, NULL); 343452efba773098c070c6bd623124e1fed21342ba4Ben Cheng gDvm.verboseShutdown = true; 3441357e94efecd485bda933270a9181035f6a39e09Ben Cheng#endif 345964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 346964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.compilerLock); 347964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 348964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Set up the JitTable */ 349964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 350964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Power of 2? */ 351964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee assert(gDvmJit.jitTableSize && 352964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee !(gDvmJit.jitTableSize & (gDvmJit.jitTableSize - 1))); 353964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 354964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmInitMutex(&gDvmJit.tableLock); 355964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmLockMutex(&gDvmJit.tableLock); 356964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitTable = (JitEntry*) 357964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee calloc(gDvmJit.jitTableSize, sizeof(*pJitTable)); 358964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!pJitTable) { 359964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee LOGE("jit table allocation failed\n"); 360964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 361964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 362964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 363964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 364964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * NOTE: the profile table must only be allocated once, globally. 365964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Profiling is turned on and off by nulling out gDvm.pJitProfTable 366964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * and then restoring its original value. However, this action 367964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * is not syncronized for speed so threads may continue to hold 368964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * and update the profile table after profiling has been turned 369964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * off by null'ng the global pointer. Be aware. 370964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 371964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitProfTable = (unsigned char *)malloc(JIT_PROF_SIZE); 372964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee if (!pJitProfTable) { 373964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee LOGE("jit prof table allocation failed\n"); 374964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 375964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee goto fail; 376964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 377964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee memset(pJitProfTable, gDvmJit.threshold, JIT_PROF_SIZE); 378964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee for (i=0; i < gDvmJit.jitTableSize; i++) { 379964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee pJitTable[i].u.info.chain = gDvmJit.jitTableSize; 380964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee } 381964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Is chain field wide enough for termination pattern? */ 382964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee assert(pJitTable[0].u.info.chain == gDvmJit.jitTableSize); 383964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 384964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.pJitEntryTable = pJitTable; 385964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.jitTableMask = gDvmJit.jitTableSize - 1; 386964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.jitTableEntriesUsed = 0; 387964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee gDvmJit.compilerHighWater = 388964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee COMPILER_WORK_QUEUE_SIZE - (COMPILER_WORK_QUEUE_SIZE/4); 389a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng /* 390a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * If the VM is launched with wait-on-the-debugger, we will need to hide 391a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * the profile table here 392a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng */ 393a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng gDvmJit.pProfTable = dvmDebuggerOrProfilerActive() ? NULL : pJitProfTable; 39406bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTableCopy = pJitProfTable; 395964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 396964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 397964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* Signal running threads to refresh their cached pJitTable pointers */ 398964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmSuspendAllThreads(SUSPEND_FOR_REFRESH); 399964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee dvmResumeAllThreads(SUSPEND_FOR_REFRESH); 400dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng 401dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng /* Enable signature breakpoints by customizing the following code */ 402dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng#if defined(SIGNATURE_BREAKPOINT) 403dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng /* 404dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * Suppose one sees the following native crash in the bugreport: 405dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): Build fingerprint: 'unknown' 406dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): pid: 2468, tid: 2507 >>> com.google.android.gallery3d 407dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): signal 11 (SIGSEGV), fault addr 00001400 408dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): r0 44ea7190 r1 44e4f7b8 r2 44ebc710 r3 00000000 409dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): r4 00000a00 r5 41862dec r6 4710dc10 r7 00000280 410dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): r8 ad010f40 r9 46a37a12 10 001116b0 fp 42a78208 411dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): ip 00000090 sp 4710dbc8 lr ad060e67 pc 46b90682 412dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * cpsr 00000030 413dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): #00 pc 46b90682 /dev/ashmem/dalvik-jit-code-cache 414dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): #01 pc 00060e62 /system/lib/libdvm.so 415dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 416dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): code around pc: 417dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): 46b90660 6888d01c 34091dcc d2174287 4a186b68 418dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): 46b90670 d0052800 68006809 28004790 6b68d00e 419dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): 46b90680 512000bc 37016eaf 6ea866af 6f696028 420dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): 46b90690 682a6069 429a686b e003da08 6df1480b 421dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * I/DEBUG ( 1638): 46b906a0 1c2d4788 47806d70 46a378fa 47806d70 422dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 423dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * Clearly it is a JIT bug. To find out which translation contains the 424dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * offending code, the content of the memory dump around the faulting PC 425dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * can be pasted into the gDvmJit.signatureBreakpoint[] array and next time 426dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * when a similar compilation is being created, the JIT compiler replay the 427dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * trace in the verbose mode and one can investigate the instruction 428dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * sequence in details. 429dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 430dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * The length of the signature may need additional experiments to determine. 431dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * The rule of thumb is don't include PC-relative instructions in the 432dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * signature since it may be affected by the alignment of the compiled code. 433dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * However, a signature that's too short might increase the chance of false 434dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * positive matches. Using gdbjithelper to disassembly the memory content 435dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * first might be a good companion approach. 436dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 437dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * For example, if the next 4 words starting from 46b90680 is pasted into 438dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * the data structure: 439dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng */ 440dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng 441dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpointSize = 4; 442dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpoint = 443dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng malloc(sizeof(u4) * gDvmJit.signatureBreakpointSize); 444dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpoint[0] = 0x512000bc; 445dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpoint[1] = 0x37016eaf; 446dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpoint[2] = 0x6ea866af; 447dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng gDvmJit.signatureBreakpoint[3] = 0x6f696028; 448dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng 449dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng /* 450dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * The following log will be printed when a match is found in subsequent 451dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * testings: 452dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 453dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): Signature match starting from offset 0x34 (4 words) 454dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): -------- 455dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): Compiler: Building trace for computeVisibleItems, 456dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * offset 0x1f7 457dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a37a12: 0x0090 add-int v42, v5, v26 458dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a37a16: 0x004d aput-object v13, v14, v42 459dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a37a1a: 0x0028 goto, (#0), (#0) 460dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a3794e: 0x00d8 add-int/lit8 v26, v26, (#1) 461dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a37952: 0x0028 goto, (#0), (#0) 462dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a378ee: 0x0002 move/from16 v0, v26, (#0) 463dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a378f2: 0x0002 move/from16 v1, v29, (#0) 464dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x46a378f6: 0x0035 if-ge v0, v1, (#10) 465dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): TRACEINFO (554): 0x46a37624 466dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * Lcom/cooliris/media/GridLayer;computeVisibleItems 0x1f7 14 of 934, 8 467dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * blocks 468dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * : 469dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * : 470dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x20 (0020): ldr r0, [r5, #52] 471dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x22 (0022): ldr r2, [pc, #96] 472dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x24 (0024): cmp r0, #0 473dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x26 (0026): beq 0x00000034 474dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x28 (0028): ldr r1, [r1, #0] 475dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x2a (002a): ldr r0, [r0, #0] 476dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x2c (002c): blx r2 477dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x2e (002e): cmp r0, #0 478dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x30 (0030): beq 0x00000050 479dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x32 (0032): ldr r0, [r5, #52] 480dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x34 (0034): lsls r4, r7, #2 481dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x36 (0036): str r0, [r4, r4] 482dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): -------- dalvik offset: 0x01fb @ goto, (#0), (#0) 483dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): L0x0195: 484dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): -------- dalvik offset: 0x0195 @ add-int/lit8 v26, 485dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * v26, (#1) 486dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x38 (0038): ldr r7, [r5, #104] 487dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x3a (003a): adds r7, r7, #1 488dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x3c (003c): str r7, [r5, #104] 489dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): -------- dalvik offset: 0x0197 @ goto, (#0), (#0) 490dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): L0x0165: 491dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): -------- dalvik offset: 0x0165 @ move/from16 v0, v26, 492dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * (#0) 493dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x3e (003e): ldr r0, [r5, #104] 494dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * D/dalvikvm( 2468): 0x40 (0040): str r0, [r5, #0] 495dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * 496dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng * The "str r0, [r4, r4]" is indeed the culprit of the native crash. 497dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng */ 498dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng#endif 499dca714364abf3111fc18c1ac49c2760392fb7c9bBen Cheng 500964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return true; 501964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 502964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbeefail: 503964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return false; 504964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 505964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee} 506964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee 507ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengstatic void *compilerThreadStart(void *arg) 508ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 50994d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee int ret; 51094d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee struct timespec ts; 51194d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 5125ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_VMWAIT); 5135ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 514b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee /* 515eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * If we're not running stand-alone, wait a little before 516eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * recieving translation requests on the assumption that process start 517eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * up code isn't worth compiling. We'll resume when the framework 518eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * signals us that the first screen draw has happened, or the timer 519eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee * below expires (to catch daemons). 520f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * 521f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * There is a theoretical race between the callback to 522f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * VMRuntime.startJitCompiation and when the compiler thread reaches this 523f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * point. In case the callback happens earlier, in order not to permanently 524f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * hold the system_server (which is not using the timed wait) in 525f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * interpreter-only mode we bypass the delay here. 526b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee */ 527f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng if (gDvmJit.runningInAndroidFramework && 528f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng !gDvmJit.alreadyEnabledViaFramework) { 529f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng /* 530f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * If the current VM instance is the system server (detected by having 531f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * 0 in gDvm.systemServerPid), we will use the indefinite wait on the 532f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * conditional variable to determine whether to start the JIT or not. 533f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * If the system server detects that the whole system is booted in 534f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * safe mode, the conditional variable will never be signaled and the 535f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * system server will remain in the interpreter-only mode. All 536f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * subsequent apps will be started with the --enable-safemode flag 537f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * explicitly appended. 538f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng */ 539f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng if (gDvm.systemServerPid == 0) { 540f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng dvmLockMutex(&gDvmJit.compilerLock); 541f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng pthread_cond_wait(&gDvmJit.compilerQueueActivity, 542f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng &gDvmJit.compilerLock); 543f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 544f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng LOGD("JIT started for system_server"); 545f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng } else { 546f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng dvmLockMutex(&gDvmJit.compilerLock); 547f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng /* 548f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * TUNING: experiment with the delay & perhaps make it 549f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng * target-specific 550f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng */ 551f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng dvmRelativeCondWait(&gDvmJit.compilerQueueActivity, 552f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng &gDvmJit.compilerLock, 3000, 0); 553f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 554f30acbb249b137b049500f136d2bb273c0b6221aBen Cheng } 555eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee if (gDvmJit.haltCompilerThread) { 556eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee return NULL; 557eb695c6f814f6b0bdbba0e837555d3fe5ad23104Bill Buzbee } 55894d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee } 55994d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 560964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee compilerThreadStartup(); 561b1d8044ee3a7503b94eb54459f3077d7200cd675Bill Buzbee 562ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 563ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 564ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * Since the compiler thread will not touch any objects on the heap once 565ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * being created, we just fake its state as VMWAIT so that it can be a 566ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng * bit late when there is suspend request pending. 567ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 568ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng while (!gDvmJit.haltCompilerThread) { 569ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (workQueueLength() == 0) { 570ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng int cc; 571ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng cc = pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 572ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng assert(cc == 0); 573ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_wait(&gDvmJit.compilerQueueActivity, 574ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng &gDvmJit.compilerLock); 575ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng continue; 576ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } else { 577ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng do { 578ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng CompilerWorkOrder work = workDequeue(); 579ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 580978738d2cbf9d08fa78c65762eaac3351ab76b9aBen Cheng#if defined(WITH_JIT_TUNING) 58186717f79d9b018f4d69cc991075fa36611f234e5Ben Cheng u8 startTime = dvmGetRelativeTimeUsec(); 58286717f79d9b018f4d69cc991075fa36611f234e5Ben Cheng#endif 583964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee /* 584964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * Check whether there is a suspend request on me. This 585964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * is necessary to allow a clean shutdown. 58611d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * 58711d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * However, in the blocking stress testing mode, let the 58811d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * compiler thread continue doing compilations to unblock 58911d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * other requesting threads. This may occasionally cause 59011d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * shutdown from proceeding cleanly in the standalone invocation 59111d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng * of the vm but this should be acceptable. 592964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee */ 59311d8f14eef83d1b7bfa8f116de56a92d5ba9e71eBen Cheng if (!gDvmJit.blockingMode) 594ab227f7a9a9d4c7837ee7a5cc9f07b665d516bacAndy McFadden dvmCheckSuspendPending(dvmThreadSelf()); 5952717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee /* Is JitTable filling up? */ 5962717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee if (gDvmJit.jitTableEntriesUsed > 5972717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee (gDvmJit.jitTableSize - gDvmJit.jitTableSize/4)) { 5986999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng bool resizeFail = 5996999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmJitResizeJitTable(gDvmJit.jitTableSize * 2); 6006999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng /* 6016999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * If the jit table is full, consider it's time to reset 6026999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng * the code cache too. 6036999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng */ 6046999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng gDvmJit.codeCacheFull |= resizeFail; 6052717622484eb0f7ad537275f7260b2f93324eda2Bill Buzbee } 606ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.haltCompilerThread) { 607ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng LOGD("Compiler shutdown in progress - discarding request"); 6086999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng } else if (!gDvmJit.codeCacheFull) { 609fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee bool compileOK = false; 610fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee jmp_buf jmpBuf; 611fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee work.bailPtr = &jmpBuf; 612fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee bool aborted = setjmp(jmpBuf); 613fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee if (!aborted) { 614fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee compileOK = dvmCompilerDoWork(&work); 615ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 616fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee if (aborted || !compileOK) { 617fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee dvmCompilerArenaReset(); 618fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee work.result.codeAddress = gDvmJit.interpretTemplate; 619fc519dc8f4444f6d93806ec15ce7445b322070fdBill Buzbee } else if (!work.result.discardResult) { 62060c24f436d603c564d5351a6f81821f12635733cBen Cheng dvmJitSetCodeAddr(work.pc, work.result.codeAddress, 62160c24f436d603c564d5351a6f81821f12635733cBen Cheng work.result.instructionSet); 62260c24f436d603c564d5351a6f81821f12635733cBen Cheng } 623ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 624ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng free(work.info); 625978738d2cbf9d08fa78c65762eaac3351ab76b9aBen Cheng#if defined(WITH_JIT_TUNING) 62686717f79d9b018f4d69cc991075fa36611f234e5Ben Cheng gDvmJit.jitTime += dvmGetRelativeTimeUsec() - startTime; 62786717f79d9b018f4d69cc991075fa36611f234e5Ben Cheng#endif 628ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 629ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } while (workQueueLength() != 0); 630ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 631ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 632ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueEmpty); 633ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 634ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng 6355ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng /* 6365ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * As part of detaching the thread we need to call into Java code to update 6375ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * the ThreadGroup, and we should not be in VMWAIT state while executing 6385ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng * interpreted code. 6395ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng */ 6405ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng dvmChangeStatus(NULL, THREAD_RUNNING); 6415ccdf0be4b448c98b595444a77dbaa21471ad1b1Ben Cheng 64243eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden if (gDvm.verboseShutdown) 64343eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden LOGD("Compiler thread shutting down\n"); 644ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng return NULL; 645ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 646ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 647ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengbool dvmCompilerStartup(void) 648ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 64994d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 65094d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmInitMutex(&gDvmJit.compilerLock); 6516999d84e2c55dc4a46a6c311b55bd5811336d9c4Ben Cheng dvmInitMutex(&gDvmJit.compilerICPatchLock); 65294d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmLockMutex(&gDvmJit.compilerLock); 65394d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee pthread_cond_init(&gDvmJit.compilerQueueActivity, NULL); 65494d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee pthread_cond_init(&gDvmJit.compilerQueueEmpty, NULL); 65594d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 65694d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee /* Reset the work queue */ 65794d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee gDvmJit.compilerWorkEnqueueIndex = gDvmJit.compilerWorkDequeueIndex = 0; 65894d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee gDvmJit.compilerQueueLength = 0; 65994d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee dvmUnlockMutex(&gDvmJit.compilerLock); 66094d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee 661ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng /* 66294d89f8016b6c305ab0df491874dcedb252ecfccBill Buzbee * Defer rest of initialization until we're sure JIT'ng makes sense. Launch 663964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * the compiler thread, which will do the real initialization if and 664964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee * when it is signalled to do so. 665ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng */ 666964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee return dvmCreateInternalThread(&gDvmJit.compilerHandle, "Compiler", 667964a7b06a9134947b5985c7f712d18d57ed665d2Bill Buzbee compilerThreadStart, NULL); 668ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng} 669ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 670ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Chengvoid dvmCompilerShutdown(void) 671ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng{ 672ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng void *threadReturn; 673ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 6742fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee /* Disable new translation requests */ 6752fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee gDvmJit.pProfTable = NULL; 6762fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee gDvmJit.pProfTableCopy = NULL; 6772fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee 67888a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng if (gDvm.verboseShutdown) { 67988a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng dvmCompilerDumpStats(); 68088a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng while (gDvmJit.compilerQueueLength) 68188a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng sleep(5); 68288a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng } 68388a0f970e47dc0091d2c9965aa9bd06667e5f4b7Ben Cheng 684ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng if (gDvmJit.compilerHandle) { 685ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 686ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng gDvmJit.haltCompilerThread = true; 687ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 688ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmLockMutex(&gDvmJit.compilerLock); 689ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng pthread_cond_signal(&gDvmJit.compilerQueueActivity); 690ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng dvmUnlockMutex(&gDvmJit.compilerLock); 691ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng 692ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng if (pthread_join(gDvmJit.compilerHandle, &threadReturn) != 0) 693ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGW("Compiler thread join failed\n"); 69443eb5015ca8bc0c859100b659d9c12934011a42eAndy McFadden else if (gDvm.verboseShutdown) 695ef00a85e7f148f044b14942aa09204e2d0d72738Ben Cheng LOGD("Compiler thread has shut down\n"); 696ba4fc8bfc1bccae048403bd1cea3b869dca61dd7Ben Cheng } 69706bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 6982fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee /* Break loops within the translation cache */ 6992fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee dvmJitUnchainAll(); 70096cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee 7012fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee /* 7022fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee * NOTE: our current implementatation doesn't allow for the compiler 7032fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee * thread to be restarted after it exits here. We aren't freeing 7042fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee * the JitTable or the ProfTable because threads which still may be 7052fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee * running or in the process of shutting down may hold references to 7062fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee * them. 7072fc03c3399cc33dc1c7d669e8970a87144ec7b97Bill Buzbee */ 70896cfe6c39b91dabc78182e2f7676b27b4012886aBill Buzbee} 70906bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 71006bb83906737fec543c86ab36f450cc62066b58aBill Buzbeevoid dvmCompilerStateRefresh() 71106bb83906737fec543c86ab36f450cc62066b58aBill Buzbee{ 71206bb83906737fec543c86ab36f450cc62066b58aBill Buzbee bool jitActive; 71306bb83906737fec543c86ab36f450cc62066b58aBill Buzbee bool jitActivate; 7143e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee bool needUnchain = false; 71506bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 716a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng /* 717a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * The tableLock might not be initialized yet by the compiler thread if 718a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * debugger is attached from the very beginning of the VM launch. If 719a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * pProfTableCopy is NULL, the lock is not initialized yet and we don't 720a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng * need to refresh anything either. 721a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng */ 722a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng if (gDvmJit.pProfTableCopy == NULL) { 723a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng return; 724a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng } 725a497359afa1abe4c5780c8799c6fe0edab551c2dBen Cheng 72606bb83906737fec543c86ab36f450cc62066b58aBill Buzbee dvmLockMutex(&gDvmJit.tableLock); 72706bb83906737fec543c86ab36f450cc62066b58aBill Buzbee jitActive = gDvmJit.pProfTable != NULL; 728c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden 729c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#if defined(WITH_DEBUGGER) && defined(WITH_PROFILER) 73006bb83906737fec543c86ab36f450cc62066b58aBill Buzbee jitActivate = !(gDvm.debuggerActive || (gDvm.activeProfilers > 0)); 731c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#elif defined(WITH_DEBUGGER) 732c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden jitActivate = !gDvm.debuggerActive; 733c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#elif defined(WITH_PROFILER) 734c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden jitActivate = !(gDvm.activeProfilers > 0); 735c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#else 736c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden jitActivate = true; 737c95e0fbce4f77b2b08eb48205e405793de0d4248Andy McFadden#endif 73806bb83906737fec543c86ab36f450cc62066b58aBill Buzbee 73906bb83906737fec543c86ab36f450cc62066b58aBill Buzbee if (jitActivate && !jitActive) { 74006bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTable = gDvmJit.pProfTableCopy; 74106bb83906737fec543c86ab36f450cc62066b58aBill Buzbee } else if (!jitActivate && jitActive) { 74206bb83906737fec543c86ab36f450cc62066b58aBill Buzbee gDvmJit.pProfTable = NULL; 7433e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee needUnchain = true; 74406bb83906737fec543c86ab36f450cc62066b58aBill Buzbee } 7453e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee dvmUnlockMutex(&gDvmJit.tableLock); 7463e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee if (needUnchain) 7473e392681fd57eaa64d4a65bd99d3576b8366569dBill Buzbee dvmJitUnchainAll(); 74806bb83906737fec543c86ab36f450cc62066b58aBill Buzbee} 749