1/* 2 * Copyright (C) 2013, 2014 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26#include "config.h" 27#include "InitializeLLVMPOSIX.h" 28 29#if HAVE(LLVM) 30 31#include "LLVMAPI.h" 32#include "Options.h" 33#include <dlfcn.h> 34#include <wtf/DataLog.h> 35 36namespace JSC { 37 38typedef void (*LoggerFunction)(const char*, ...) WTF_ATTRIBUTE_PRINTF(1, 2); 39typedef LLVMAPI* (*InitializerFunction)(LoggerFunction); 40 41void initializeLLVMPOSIX(const char* libraryName) 42{ 43 const bool verbose = 44 Options::verboseFTLCompilation() 45 || Options::showFTLDisassembly() 46 || Options::verboseFTLFailure() 47 || Options::verboseCompilation() 48 || Options::showDFGDisassembly() 49 || Options::showDisassembly(); 50 51 void* library = dlopen(libraryName, RTLD_NOW); 52 if (!library) { 53 if (verbose) 54 dataLog("Failed to load LLVM library at ", libraryName, ": ", dlerror(), "\n"); 55 return; 56 } 57 58 const char* symbolName = "initializeAndGetJSCLLVMAPI"; 59 InitializerFunction initializer = bitwise_cast<InitializerFunction>( 60 dlsym(library, symbolName)); 61 if (!initializer) { 62 if (verbose) 63 dataLog("Failed to find ", symbolName, " in ", libraryName, ": ", dlerror()); 64 return; 65 } 66 67 llvm = initializer(WTFLogAlwaysAndCrash); 68 if (!llvm) { 69 if (verbose) 70 dataLog("LLVM initilization failed.\n"); 71 } 72} 73 74} // namespace JSC 75 76#endif // HAVE(LLVM) 77 78