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/*
* Copyright (C) 2013, 2014 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config_llvm.h"
#if HAVE(LLVM)
#include "LLVMAPI.h"
#include "LLVMTrapCallback.h"
// Include some extra LLVM C++ headers. This is the only place where including LLVM C++
// headers is OK, since this module lives inside of the LLVM dylib we make and so can see
// otherwise private things. But to include those headers, we need to do some weird things
// first. Anyway, we should keep LLVM C++ includes to a minimum if possible.
#define __STDC_LIMIT_MACROS
#define __STDC_CONSTANT_MACROS
#if COMPILER(CLANG)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wmissing-noreturn"
#pragma clang diagnostic ignored "-Wunused-parameter"
#endif // COMPILER(CLANG)
#include <llvm/Support/CommandLine.h>
#if COMPILER(CLANG)
#pragma clang diagnostic pop
#endif // COMPILER(CLANG)
#undef __STDC_LIMIT_MACROS
#undef __STDC_CONSTANT_MACROS
extern "C" WTF_EXPORT_PRIVATE JSC::LLVMAPI* initializeAndGetJSCLLVMAPI(void (*)(const char*, ...));
static void llvmCrash(const char* reason)
{
g_llvmTrapCallback("LLVM fatal error: %s", reason);
}
extern "C" JSC::LLVMAPI* initializeAndGetJSCLLVMAPI(void (*callback)(const char*, ...))
{
g_llvmTrapCallback = callback;
LLVMInstallFatalErrorHandler(llvmCrash);
if (!LLVMStartMultithreaded())
callback("Could not start LLVM multithreading");
LLVMLinkInMCJIT();
// You think you want to call LLVMInitializeNativeTarget()? Think again. This presumes that
// LLVM was ./configured correctly, which won't be the case in cross-compilation situations.
#if CPU(X86_64)
LLVMInitializeX86TargetInfo();
LLVMInitializeX86Target();
LLVMInitializeX86TargetMC();
LLVMInitializeX86AsmPrinter();
LLVMInitializeX86Disassembler();
#elif CPU(ARM64)
LLVMInitializeARM64TargetInfo();
LLVMInitializeARM64Target();
LLVMInitializeARM64TargetMC();
LLVMInitializeARM64AsmPrinter();
LLVMInitializeARM64Disassembler();
#else
UNREACHABLE_FOR_PLATFORM();
#endif
const char* args[] = {
"llvmForJSC.dylib",
"-enable-patchpoint-liveness=true"
};
llvm::cl::ParseCommandLineOptions(sizeof(args) / sizeof(const char*), args);
JSC::LLVMAPI* result = new JSC::LLVMAPI;
#define LLVM_API_FUNCTION_ASSIGNMENT(returnType, name, signature) \
result->name = LLVM##name;
FOR_EACH_LLVM_API_FUNCTION(LLVM_API_FUNCTION_ASSIGNMENT);
#undef LLVM_API_FUNCTION_ASSIGNMENT
return result;
}
#else
// Create a dummy initializeAndGetJSCLLVMAPI to placate the build system.
extern "C" WTF_EXPORT_PRIVATE void initializeAndGetJSCLLVMAPI();
extern "C" void initializeAndGetJSCLLVMAPI() { }
#endif // HAVE(LLVM)
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