2002-12-23 23:59:41 +00:00
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//===- lli.cpp - LLVM Interpreter / Dynamic compiler ----------------------===//
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2005-04-22 00:00:37 +00:00
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//
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2003-10-20 17:47:21 +00:00
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// The LLVM Compiler Infrastructure
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//
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2007-12-29 20:44:31 +00:00
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
|
2005-04-22 00:00:37 +00:00
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//
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2003-10-20 17:47:21 +00:00
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//===----------------------------------------------------------------------===//
|
2001-08-23 17:05:04 +00:00
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//
|
2003-12-26 05:07:35 +00:00
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|
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// This utility provides a simple wrapper around the LLVM Execution Engines,
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// which allow the direct execution of LLVM programs through a Just-In-Time
|
2009-07-03 12:11:32 +00:00
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// compiler, or through an interpreter if no JIT is available for this platform.
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2001-08-23 17:05:04 +00:00
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//
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//===----------------------------------------------------------------------===//
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2012-09-05 16:50:34 +00:00
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#define DEBUG_TYPE "lli"
|
2013-01-02 11:36:10 +00:00
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#include "llvm/IR/LLVMContext.h"
|
2012-09-05 16:50:34 +00:00
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#include "RecordingMemoryManager.h"
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|
|
#include "RemoteTarget.h"
|
2010-08-28 01:30:02 +00:00
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|
|
#include "llvm/ADT/Triple.h"
|
2007-05-06 04:58:26 +00:00
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|
|
#include "llvm/Bitcode/ReaderWriter.h"
|
2006-08-01 22:34:35 +00:00
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|
|
#include "llvm/CodeGen/LinkAllCodegenComponents.h"
|
2003-09-05 19:42:34 +00:00
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|
#include "llvm/ExecutionEngine/GenericValue.h"
|
2009-06-25 02:04:04 +00:00
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|
#include "llvm/ExecutionEngine/Interpreter.h"
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|
|
#include "llvm/ExecutionEngine/JIT.h"
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|
|
#include "llvm/ExecutionEngine/JITEventListener.h"
|
2012-01-11 21:12:51 +00:00
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|
|
#include "llvm/ExecutionEngine/JITMemoryManager.h"
|
2010-11-17 16:06:43 +00:00
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|
|
#include "llvm/ExecutionEngine/MCJIT.h"
|
2012-11-27 19:49:00 +00:00
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|
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
|
2013-01-02 11:36:10 +00:00
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#include "llvm/IR/Module.h"
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|
|
#include "llvm/IR/Type.h"
|
2013-03-26 02:25:37 +00:00
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|
#include "llvm/IRReader/IRReader.h"
|
2004-09-01 22:55:40 +00:00
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|
#include "llvm/Support/CommandLine.h"
|
2012-12-04 10:44:52 +00:00
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/DynamicLibrary.h"
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#include "llvm/Support/Format.h"
|
2006-12-06 01:18:01 +00:00
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#include "llvm/Support/ManagedStatic.h"
|
2012-12-04 10:44:52 +00:00
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#include "llvm/Support/MathExtras.h"
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#include "llvm/Support/Memory.h"
|
2007-05-06 04:58:26 +00:00
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#include "llvm/Support/MemoryBuffer.h"
|
2004-09-01 22:55:40 +00:00
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#include "llvm/Support/PluginLoader.h"
|
2009-03-06 05:34:10 +00:00
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#include "llvm/Support/PrettyStackTrace.h"
|
2010-11-29 18:16:10 +00:00
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#include "llvm/Support/Process.h"
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#include "llvm/Support/Signals.h"
|
2013-03-26 02:25:37 +00:00
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#include "llvm/Support/SourceMgr.h"
|
2011-08-24 18:08:43 +00:00
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#include "llvm/Support/TargetSelect.h"
|
2012-12-04 10:44:52 +00:00
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#include "llvm/Support/raw_ostream.h"
|
2007-04-27 17:02:33 +00:00
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#include <cerrno>
|
2010-10-22 14:53:59 +00:00
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#ifdef __CYGWIN__
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#include <cygwin/version.h>
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#if defined(CYGWIN_VERSION_DLL_MAJOR) && CYGWIN_VERSION_DLL_MAJOR<1007
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#define DO_NOTHING_ATEXIT 1
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#endif
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#endif
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|
2003-11-11 22:41:34 +00:00
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using namespace llvm;
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|
2002-12-23 23:59:41 +00:00
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namespace {
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cl::opt<std::string>
|
2007-07-05 17:07:56 +00:00
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InputFile(cl::desc("<input bitcode>"), cl::Positional, cl::init("-"));
|
2002-07-22 02:10:13 +00:00
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|
2002-12-23 23:59:41 +00:00
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cl::list<std::string>
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InputArgv(cl::ConsumeAfter, cl::desc("<program arguments>..."));
|
2002-07-22 02:10:13 +00:00
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|
2002-12-23 23:59:41 +00:00
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|
cl::opt<bool> ForceInterpreter("force-interpreter",
|
2003-09-25 18:10:34 +00:00
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|
|
cl::desc("Force interpretation: disable JIT"),
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|
cl::init(false));
|
2008-08-08 08:12:06 +00:00
|
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|
|
2010-11-17 16:06:37 +00:00
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|
|
cl::opt<bool> UseMCJIT(
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"use-mcjit", cl::desc("Enable use of the MC-based JIT (if available)"),
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|
cl::init(false));
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|
2012-09-05 16:50:34 +00:00
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|
// The MCJIT supports building for a target address space separate from
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// the JIT compilation process. Use a forked process and a copying
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// memory manager with IPC to execute using this functionality.
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cl::opt<bool> RemoteMCJIT("remote-mcjit",
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|
cl::desc("Execute MCJIT'ed code in a separate process."),
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|
cl::init(false));
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|
|
|
|
2009-05-04 23:05:19 +00:00
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|
|
// Determine optimization level.
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|
|
cl::opt<char>
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OptLevel("O",
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|
|
cl::desc("Optimization level. [-O0, -O1, -O2, or -O3] "
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|
"(default = '-O2')"),
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|
cl::Prefix,
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|
cl::ZeroOrMore,
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|
cl::init(' '));
|
2008-08-08 08:12:06 +00:00
|
|
|
|
2005-12-16 05:00:21 +00:00
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|
|
cl::opt<std::string>
|
2005-12-16 05:19:18 +00:00
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|
TargetTriple("mtriple", cl::desc("Override target triple for module"));
|
2008-11-05 23:21:52 +00:00
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|
|
|
2010-02-05 16:19:36 +00:00
|
|
|
cl::opt<std::string>
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MArch("march",
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|
cl::desc("Architecture to generate assembly for (see --version)"));
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|
cl::opt<std::string>
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MCPU("mcpu",
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|
cl::desc("Target a specific cpu type (-mcpu=help for details)"),
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|
cl::value_desc("cpu-name"),
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|
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|
cl::init(""));
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|
cl::list<std::string>
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MAttrs("mattr",
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|
cl::CommaSeparated,
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|
|
cl::desc("Target specific attributes (-mattr=help for details)"),
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|
cl::value_desc("a1,+a2,-a3,..."));
|
|
|
|
|
2008-11-05 23:21:52 +00:00
|
|
|
cl::opt<std::string>
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EntryFunc("entry-function",
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|
cl::desc("Specify the entry function (default = 'main') "
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|
|
"of the executable"),
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|
|
cl::value_desc("function"),
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|
cl::init("main"));
|
2012-01-16 08:56:09 +00:00
|
|
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|
2003-10-28 22:51:44 +00:00
|
|
|
cl::opt<std::string>
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FakeArgv0("fake-argv0",
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|
cl::desc("Override the 'argv[0]' value passed into the executing"
|
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|
|
" program"), cl::value_desc("executable"));
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2006-09-14 06:17:09 +00:00
|
|
|
cl::opt<bool>
|
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|
|
DisableCoreFiles("disable-core-files", cl::Hidden,
|
|
|
|
cl::desc("Disable emission of core files if possible"));
|
2008-04-22 06:51:41 +00:00
|
|
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|
|
cl::opt<bool>
|
2008-05-21 18:20:21 +00:00
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|
|
NoLazyCompilation("disable-lazy-compilation",
|
2008-04-22 06:51:41 +00:00
|
|
|
cl::desc("Disable JIT lazy compilation"),
|
|
|
|
cl::init(false));
|
2011-07-19 06:37:02 +00:00
|
|
|
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|
|
cl::opt<Reloc::Model>
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|
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RelocModel("relocation-model",
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|
|
cl::desc("Choose relocation model"),
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|
|
|
cl::init(Reloc::Default),
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|
|
|
cl::values(
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|
|
clEnumValN(Reloc::Default, "default",
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|
|
|
"Target default relocation model"),
|
|
|
|
clEnumValN(Reloc::Static, "static",
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|
|
"Non-relocatable code"),
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|
|
clEnumValN(Reloc::PIC_, "pic",
|
|
|
|
"Fully relocatable, position independent code"),
|
|
|
|
clEnumValN(Reloc::DynamicNoPIC, "dynamic-no-pic",
|
|
|
|
"Relocatable external references, non-relocatable code"),
|
|
|
|
clEnumValEnd));
|
2011-07-20 07:51:56 +00:00
|
|
|
|
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|
|
cl::opt<llvm::CodeModel::Model>
|
|
|
|
CMModel("code-model",
|
|
|
|
cl::desc("Choose code model"),
|
|
|
|
cl::init(CodeModel::JITDefault),
|
|
|
|
cl::values(clEnumValN(CodeModel::JITDefault, "default",
|
|
|
|
"Target default JIT code model"),
|
|
|
|
clEnumValN(CodeModel::Small, "small",
|
|
|
|
"Small code model"),
|
|
|
|
clEnumValN(CodeModel::Kernel, "kernel",
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|
|
|
"Kernel code model"),
|
|
|
|
clEnumValN(CodeModel::Medium, "medium",
|
|
|
|
"Medium code model"),
|
|
|
|
clEnumValN(CodeModel::Large, "large",
|
|
|
|
"Large code model"),
|
|
|
|
clEnumValEnd));
|
|
|
|
|
2012-04-18 08:34:12 +00:00
|
|
|
cl::opt<bool>
|
2012-10-12 09:55:13 +00:00
|
|
|
GenerateSoftFloatCalls("soft-float",
|
|
|
|
cl::desc("Generate software floating point library calls"),
|
|
|
|
cl::init(false));
|
|
|
|
|
|
|
|
cl::opt<llvm::FloatABI::ABIType>
|
|
|
|
FloatABIForCalls("float-abi",
|
|
|
|
cl::desc("Choose float ABI type"),
|
|
|
|
cl::init(FloatABI::Default),
|
|
|
|
cl::values(
|
|
|
|
clEnumValN(FloatABI::Default, "default",
|
|
|
|
"Target default float ABI type"),
|
|
|
|
clEnumValN(FloatABI::Soft, "soft",
|
|
|
|
"Soft float ABI (implied by -soft-float)"),
|
|
|
|
clEnumValN(FloatABI::Hard, "hard",
|
|
|
|
"Hard float ABI (uses FP registers)"),
|
|
|
|
clEnumValEnd));
|
|
|
|
cl::opt<bool>
|
2012-04-18 08:34:12 +00:00
|
|
|
// In debug builds, make this default to true.
|
|
|
|
#ifdef NDEBUG
|
|
|
|
#define EMIT_DEBUG false
|
|
|
|
#else
|
|
|
|
#define EMIT_DEBUG true
|
|
|
|
#endif
|
|
|
|
EmitJitDebugInfo("jit-emit-debug",
|
|
|
|
cl::desc("Emit debug information to debugger"),
|
|
|
|
cl::init(EMIT_DEBUG));
|
|
|
|
#undef EMIT_DEBUG
|
|
|
|
|
|
|
|
static cl::opt<bool>
|
|
|
|
EmitJitDebugInfoToDisk("jit-emit-debug-to-disk",
|
|
|
|
cl::Hidden,
|
|
|
|
cl::desc("Emit debug info objfiles to disk"),
|
|
|
|
cl::init(false));
|
2002-12-23 23:59:41 +00:00
|
|
|
}
|
2001-10-27 08:43:52 +00:00
|
|
|
|
2007-03-03 18:21:44 +00:00
|
|
|
static ExecutionEngine *EE = 0;
|
|
|
|
|
|
|
|
static void do_shutdown() {
|
2010-10-22 14:53:59 +00:00
|
|
|
// Cygwin-1.5 invokes DLL's dtors before atexit handler.
|
|
|
|
#ifndef DO_NOTHING_ATEXIT
|
2007-03-03 18:21:44 +00:00
|
|
|
delete EE;
|
|
|
|
llvm_shutdown();
|
2010-10-22 14:53:59 +00:00
|
|
|
#endif
|
2007-03-03 18:21:44 +00:00
|
|
|
}
|
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
void layoutRemoteTargetMemory(RemoteTarget *T, RecordingMemoryManager *JMM) {
|
|
|
|
// Lay out our sections in order, with all the code sections first, then
|
|
|
|
// all the data sections.
|
|
|
|
uint64_t CurOffset = 0;
|
|
|
|
unsigned MaxAlign = T->getPageAlignment();
|
|
|
|
SmallVector<std::pair<const void*, uint64_t>, 16> Offsets;
|
|
|
|
SmallVector<unsigned, 16> Sizes;
|
|
|
|
for (RecordingMemoryManager::const_code_iterator I = JMM->code_begin(),
|
|
|
|
E = JMM->code_end();
|
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|
I != E; ++I) {
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|
|
|
DEBUG(dbgs() << "code region: size " << I->first.size()
|
|
|
|
<< ", alignment " << I->second << "\n");
|
|
|
|
// Align the current offset up to whatever is needed for the next
|
|
|
|
// section.
|
|
|
|
unsigned Align = I->second;
|
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|
|
CurOffset = (CurOffset + Align - 1) / Align * Align;
|
|
|
|
// Save off the address of the new section and allocate its space.
|
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|
|
Offsets.push_back(std::pair<const void*,uint64_t>(I->first.base(), CurOffset));
|
|
|
|
Sizes.push_back(I->first.size());
|
|
|
|
CurOffset += I->first.size();
|
|
|
|
}
|
|
|
|
// Adjust to keep code and data aligned on seperate pages.
|
|
|
|
CurOffset = (CurOffset + MaxAlign - 1) / MaxAlign * MaxAlign;
|
|
|
|
unsigned FirstDataIndex = Offsets.size();
|
|
|
|
for (RecordingMemoryManager::const_data_iterator I = JMM->data_begin(),
|
|
|
|
E = JMM->data_end();
|
|
|
|
I != E; ++I) {
|
|
|
|
DEBUG(dbgs() << "data region: size " << I->first.size()
|
|
|
|
<< ", alignment " << I->second << "\n");
|
|
|
|
// Align the current offset up to whatever is needed for the next
|
|
|
|
// section.
|
|
|
|
unsigned Align = I->second;
|
|
|
|
CurOffset = (CurOffset + Align - 1) / Align * Align;
|
|
|
|
// Save off the address of the new section and allocate its space.
|
|
|
|
Offsets.push_back(std::pair<const void*,uint64_t>(I->first.base(), CurOffset));
|
|
|
|
Sizes.push_back(I->first.size());
|
|
|
|
CurOffset += I->first.size();
|
|
|
|
}
|
|
|
|
|
|
|
|
// Allocate space in the remote target.
|
|
|
|
uint64_t RemoteAddr;
|
|
|
|
if (T->allocateSpace(CurOffset, MaxAlign, RemoteAddr))
|
|
|
|
report_fatal_error(T->getErrorMsg());
|
|
|
|
// Map the section addresses so relocations will get updated in the local
|
|
|
|
// copies of the sections.
|
|
|
|
for (unsigned i = 0, e = Offsets.size(); i != e; ++i) {
|
|
|
|
uint64_t Addr = RemoteAddr + Offsets[i].second;
|
|
|
|
EE->mapSectionAddress(const_cast<void*>(Offsets[i].first), Addr);
|
|
|
|
|
|
|
|
DEBUG(dbgs() << " Mapping local: " << Offsets[i].first
|
2012-11-01 00:17:11 +00:00
|
|
|
<< " to remote: " << format("%p", Addr) << "\n");
|
2012-09-05 16:50:34 +00:00
|
|
|
|
|
|
|
}
|
2012-11-05 20:57:16 +00:00
|
|
|
|
|
|
|
// Trigger application of relocations
|
|
|
|
EE->finalizeObject();
|
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
// Now load it all to the target.
|
|
|
|
for (unsigned i = 0, e = Offsets.size(); i != e; ++i) {
|
|
|
|
uint64_t Addr = RemoteAddr + Offsets[i].second;
|
|
|
|
|
|
|
|
if (i < FirstDataIndex) {
|
|
|
|
T->loadCode(Addr, Offsets[i].first, Sizes[i]);
|
|
|
|
|
|
|
|
DEBUG(dbgs() << " loading code: " << Offsets[i].first
|
2012-11-01 00:17:11 +00:00
|
|
|
<< " to remote: " << format("%p", Addr) << "\n");
|
2012-09-05 16:50:34 +00:00
|
|
|
} else {
|
|
|
|
T->loadData(Addr, Offsets[i].first, Sizes[i]);
|
|
|
|
|
|
|
|
DEBUG(dbgs() << " loading data: " << Offsets[i].first
|
2012-11-01 00:17:11 +00:00
|
|
|
<< " to remote: " << format("%p", Addr) << "\n");
|
2012-09-05 16:50:34 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2001-08-23 17:05:04 +00:00
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
// main Driver function
|
|
|
|
//
|
2003-10-14 21:39:53 +00:00
|
|
|
int main(int argc, char **argv, char * const *envp) {
|
2009-03-06 05:34:10 +00:00
|
|
|
sys::PrintStackTraceOnErrorSignal();
|
|
|
|
PrettyStackTraceProgram X(argc, argv);
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2009-07-15 22:16:10 +00:00
|
|
|
LLVMContext &Context = getGlobalContext();
|
2007-03-03 18:21:44 +00:00
|
|
|
atexit(do_shutdown); // Call llvm_shutdown() on exit.
|
2009-07-16 02:04:54 +00:00
|
|
|
|
|
|
|
// If we have a native target, initialize it to ensure it is linked in and
|
|
|
|
// usable by the JIT.
|
|
|
|
InitializeNativeTarget();
|
2011-03-18 22:48:41 +00:00
|
|
|
InitializeNativeTargetAsmPrinter();
|
2012-11-05 19:06:05 +00:00
|
|
|
InitializeNativeTargetAsmParser();
|
2009-07-16 02:04:54 +00:00
|
|
|
|
2007-05-06 04:58:26 +00:00
|
|
|
cl::ParseCommandLineOptions(argc, argv,
|
2007-10-08 15:45:12 +00:00
|
|
|
"llvm interpreter & dynamic compiler\n");
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2007-05-06 04:58:26 +00:00
|
|
|
// If the user doesn't want core files, disable them.
|
|
|
|
if (DisableCoreFiles)
|
|
|
|
sys::Process::PreventCoreFiles();
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2007-07-05 17:07:56 +00:00
|
|
|
// Load the bitcode...
|
2010-11-13 00:28:01 +00:00
|
|
|
SMDiagnostic Err;
|
|
|
|
Module *Mod = ParseIRFile(InputFile, Err, Context);
|
2010-01-27 20:34:15 +00:00
|
|
|
if (!Mod) {
|
2011-10-16 04:47:35 +00:00
|
|
|
Err.print(argv[0], errs());
|
2010-11-13 00:28:01 +00:00
|
|
|
return 1;
|
2007-05-06 04:58:26 +00:00
|
|
|
}
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2010-01-27 20:34:15 +00:00
|
|
|
// If not jitting lazily, load the whole bitcode file eagerly too.
|
2010-11-13 00:28:01 +00:00
|
|
|
std::string ErrorMsg;
|
2010-01-27 20:34:15 +00:00
|
|
|
if (NoLazyCompilation) {
|
|
|
|
if (Mod->MaterializeAllPermanently(&ErrorMsg)) {
|
|
|
|
errs() << argv[0] << ": bitcode didn't read correctly.\n";
|
|
|
|
errs() << "Reason: " << ErrorMsg << "\n";
|
|
|
|
exit(1);
|
|
|
|
}
|
2008-04-22 06:51:41 +00:00
|
|
|
}
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2010-01-27 20:34:15 +00:00
|
|
|
EngineBuilder builder(Mod);
|
2010-02-05 16:19:36 +00:00
|
|
|
builder.setMArch(MArch);
|
|
|
|
builder.setMCPU(MCPU);
|
|
|
|
builder.setMAttrs(MAttrs);
|
2011-07-19 06:37:02 +00:00
|
|
|
builder.setRelocationModel(RelocModel);
|
2011-07-20 07:51:56 +00:00
|
|
|
builder.setCodeModel(CMModel);
|
2009-07-18 08:07:13 +00:00
|
|
|
builder.setErrorStr(&ErrorMsg);
|
|
|
|
builder.setEngineKind(ForceInterpreter
|
2009-07-18 00:42:18 +00:00
|
|
|
? EngineKind::Interpreter
|
|
|
|
: EngineKind::JIT);
|
|
|
|
|
2007-05-06 04:58:26 +00:00
|
|
|
// If we are supposed to override the target triple, do so now.
|
|
|
|
if (!TargetTriple.empty())
|
2010-08-28 01:30:02 +00:00
|
|
|
Mod->setTargetTriple(Triple::normalize(TargetTriple));
|
2008-04-22 06:51:41 +00:00
|
|
|
|
2012-01-16 08:56:09 +00:00
|
|
|
// Enable MCJIT if desired.
|
2013-05-14 19:29:00 +00:00
|
|
|
RTDyldMemoryManager *RTDyldMM = 0;
|
2012-01-16 08:56:09 +00:00
|
|
|
if (UseMCJIT && !ForceInterpreter) {
|
2010-11-17 16:06:37 +00:00
|
|
|
builder.setUseMCJIT(true);
|
2012-09-05 16:50:34 +00:00
|
|
|
if (RemoteMCJIT)
|
2013-05-14 19:29:00 +00:00
|
|
|
RTDyldMM = new RecordingMemoryManager();
|
2012-09-05 16:50:34 +00:00
|
|
|
else
|
2013-05-14 19:29:00 +00:00
|
|
|
RTDyldMM = new SectionMemoryManager();
|
|
|
|
builder.setMCJITMemoryManager(RTDyldMM);
|
2012-05-20 17:24:08 +00:00
|
|
|
} else {
|
2012-09-05 16:50:34 +00:00
|
|
|
if (RemoteMCJIT) {
|
|
|
|
errs() << "error: Remote process execution requires -use-mcjit\n";
|
|
|
|
exit(1);
|
|
|
|
}
|
2012-05-20 17:24:08 +00:00
|
|
|
builder.setJITMemoryManager(ForceInterpreter ? 0 :
|
|
|
|
JITMemoryManager::CreateDefaultMemManager());
|
2012-01-16 08:56:09 +00:00
|
|
|
}
|
2010-11-17 16:06:37 +00:00
|
|
|
|
2009-05-04 23:05:19 +00:00
|
|
|
CodeGenOpt::Level OLvl = CodeGenOpt::Default;
|
|
|
|
switch (OptLevel) {
|
|
|
|
default:
|
2009-07-15 16:35:29 +00:00
|
|
|
errs() << argv[0] << ": invalid optimization level.\n";
|
2009-05-04 23:05:19 +00:00
|
|
|
return 1;
|
|
|
|
case ' ': break;
|
|
|
|
case '0': OLvl = CodeGenOpt::None; break;
|
2009-10-16 21:02:20 +00:00
|
|
|
case '1': OLvl = CodeGenOpt::Less; break;
|
2009-05-04 23:05:19 +00:00
|
|
|
case '2': OLvl = CodeGenOpt::Default; break;
|
|
|
|
case '3': OLvl = CodeGenOpt::Aggressive; break;
|
|
|
|
}
|
2009-07-18 00:42:18 +00:00
|
|
|
builder.setOptLevel(OLvl);
|
|
|
|
|
2012-10-12 09:55:13 +00:00
|
|
|
TargetOptions Options;
|
|
|
|
Options.UseSoftFloat = GenerateSoftFloatCalls;
|
|
|
|
if (FloatABIForCalls != FloatABI::Default)
|
|
|
|
Options.FloatABIType = FloatABIForCalls;
|
|
|
|
if (GenerateSoftFloatCalls)
|
|
|
|
FloatABIForCalls = FloatABI::Soft;
|
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
// Remote target execution doesn't handle EH or debug registration.
|
|
|
|
if (!RemoteMCJIT) {
|
|
|
|
Options.JITEmitDebugInfo = EmitJitDebugInfo;
|
|
|
|
Options.JITEmitDebugInfoToDisk = EmitJitDebugInfoToDisk;
|
|
|
|
}
|
2012-04-18 08:34:12 +00:00
|
|
|
|
2012-10-12 09:55:13 +00:00
|
|
|
builder.setTargetOptions(Options);
|
|
|
|
|
2009-07-18 00:42:18 +00:00
|
|
|
EE = builder.create();
|
2009-07-07 18:31:09 +00:00
|
|
|
if (!EE) {
|
|
|
|
if (!ErrorMsg.empty())
|
2009-07-15 16:35:29 +00:00
|
|
|
errs() << argv[0] << ": error creating EE: " << ErrorMsg << "\n";
|
2009-07-07 18:31:09 +00:00
|
|
|
else
|
2009-07-15 16:35:29 +00:00
|
|
|
errs() << argv[0] << ": unknown error creating EE!\n";
|
2007-05-06 04:58:26 +00:00
|
|
|
exit(1);
|
|
|
|
}
|
2004-12-30 05:36:08 +00:00
|
|
|
|
2012-03-13 08:33:15 +00:00
|
|
|
// The following functions have no effect if their respective profiling
|
|
|
|
// support wasn't enabled in the build configuration.
|
|
|
|
EE->RegisterJITEventListener(
|
|
|
|
JITEventListener::createOProfileJITEventListener());
|
|
|
|
EE->RegisterJITEventListener(
|
|
|
|
JITEventListener::createIntelJITEventListener());
|
2009-06-25 02:04:04 +00:00
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
if (!NoLazyCompilation && RemoteMCJIT) {
|
|
|
|
errs() << "warning: remote mcjit does not support lazy compilation\n";
|
|
|
|
NoLazyCompilation = true;
|
|
|
|
}
|
2009-10-27 22:39:42 +00:00
|
|
|
EE->DisableLazyCompilation(NoLazyCompilation);
|
2008-04-22 06:51:41 +00:00
|
|
|
|
2007-05-06 04:58:26 +00:00
|
|
|
// If the user specifically requested an argv[0] to pass into the program,
|
|
|
|
// do it now.
|
|
|
|
if (!FakeArgv0.empty()) {
|
|
|
|
InputFile = FakeArgv0;
|
|
|
|
} else {
|
|
|
|
// Otherwise, if there is a .bc suffix on the executable strip it off, it
|
|
|
|
// might confuse the program.
|
2010-04-15 11:33:14 +00:00
|
|
|
if (StringRef(InputFile).endswith(".bc"))
|
2007-05-06 04:58:26 +00:00
|
|
|
InputFile.erase(InputFile.length() - 3);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Add the module's name to the start of the vector of arguments to main().
|
|
|
|
InputArgv.insert(InputArgv.begin(), InputFile);
|
|
|
|
|
|
|
|
// Call the main function from M as if its signature were:
|
|
|
|
// int main (int argc, char **argv, const char **envp)
|
|
|
|
// using the contents of Args to determine argc & argv, and the contents of
|
|
|
|
// EnvVars to determine envp.
|
|
|
|
//
|
2008-11-05 23:21:52 +00:00
|
|
|
Function *EntryFn = Mod->getFunction(EntryFunc);
|
|
|
|
if (!EntryFn) {
|
2009-07-15 16:35:29 +00:00
|
|
|
errs() << '\'' << EntryFunc << "\' function not found in module.\n";
|
2007-05-06 04:58:26 +00:00
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
2012-01-16 08:56:09 +00:00
|
|
|
// If the program doesn't explicitly call exit, we will need the Exit
|
|
|
|
// function later on to make an explicit call, so get the function now.
|
2009-08-13 21:58:54 +00:00
|
|
|
Constant *Exit = Mod->getOrInsertFunction("exit", Type::getVoidTy(Context),
|
|
|
|
Type::getInt32Ty(Context),
|
|
|
|
NULL);
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2007-05-06 04:58:26 +00:00
|
|
|
// Reset errno to zero on entry to main.
|
|
|
|
errno = 0;
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
// Remote target MCJIT doesn't (yet) support static constructors. No reason
|
|
|
|
// it couldn't. This is a limitation of the LLI implemantation, not the
|
|
|
|
// MCJIT itself. FIXME.
|
|
|
|
//
|
2007-05-06 04:58:26 +00:00
|
|
|
// Run static constructors.
|
2012-11-27 19:49:00 +00:00
|
|
|
if (!RemoteMCJIT) {
|
|
|
|
if (UseMCJIT && !ForceInterpreter) {
|
|
|
|
// Give MCJIT a chance to apply relocations and set page permissions.
|
|
|
|
EE->finalizeObject();
|
|
|
|
}
|
|
|
|
EE->runStaticConstructorsDestructors(false);
|
|
|
|
}
|
2008-04-22 06:51:41 +00:00
|
|
|
|
|
|
|
if (NoLazyCompilation) {
|
|
|
|
for (Module::iterator I = Mod->begin(), E = Mod->end(); I != E; ++I) {
|
|
|
|
Function *Fn = &*I;
|
2008-11-05 23:21:52 +00:00
|
|
|
if (Fn != EntryFn && !Fn->isDeclaration())
|
2008-04-22 06:51:41 +00:00
|
|
|
EE->getPointerToFunction(Fn);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
int Result;
|
|
|
|
if (RemoteMCJIT) {
|
2013-05-14 19:29:00 +00:00
|
|
|
RecordingMemoryManager *MM = static_cast<RecordingMemoryManager*>(RTDyldMM);
|
2012-09-05 16:50:34 +00:00
|
|
|
// Everything is prepared now, so lay out our program for the target
|
|
|
|
// address space, assign the section addresses to resolve any relocations,
|
|
|
|
// and send it to the target.
|
|
|
|
RemoteTarget Target;
|
|
|
|
Target.create();
|
|
|
|
|
|
|
|
// Ask for a pointer to the entry function. This triggers the actual
|
|
|
|
// compilation.
|
|
|
|
(void)EE->getPointerToFunction(EntryFn);
|
|
|
|
|
|
|
|
// Enough has been compiled to execute the entry function now, so
|
|
|
|
// layout the target memory.
|
|
|
|
layoutRemoteTargetMemory(&Target, MM);
|
|
|
|
|
|
|
|
// Since we're executing in a (at least simulated) remote address space,
|
|
|
|
// we can't use the ExecutionEngine::runFunctionAsMain(). We have to
|
|
|
|
// grab the function address directly here and tell the remote target
|
|
|
|
// to execute the function.
|
|
|
|
// FIXME: argv and envp handling.
|
|
|
|
uint64_t Entry = (uint64_t)EE->getPointerToFunction(EntryFn);
|
|
|
|
|
|
|
|
DEBUG(dbgs() << "Executing '" << EntryFn->getName() << "' at "
|
2012-11-01 00:17:11 +00:00
|
|
|
<< format("%p", Entry) << "\n");
|
2012-09-05 16:50:34 +00:00
|
|
|
|
|
|
|
if (Target.executeCode(Entry, Result))
|
|
|
|
errs() << "ERROR: " << Target.getErrorMsg() << "\n";
|
|
|
|
|
|
|
|
Target.stop();
|
|
|
|
} else {
|
2012-09-20 08:46:30 +00:00
|
|
|
// Trigger compilation separately so code regions that need to be
|
|
|
|
// invalidated will be known.
|
|
|
|
(void)EE->getPointerToFunction(EntryFn);
|
2012-09-05 16:50:34 +00:00
|
|
|
// Clear instruction cache before code will be executed.
|
2013-05-14 19:29:00 +00:00
|
|
|
if (RTDyldMM)
|
|
|
|
static_cast<SectionMemoryManager*>(RTDyldMM)->invalidateInstructionCache();
|
2007-05-06 04:58:26 +00:00
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
// Run main.
|
|
|
|
Result = EE->runFunctionAsMain(EntryFn, InputArgv, envp);
|
|
|
|
}
|
2012-01-16 08:56:09 +00:00
|
|
|
|
2012-09-05 16:50:34 +00:00
|
|
|
// Like static constructors, the remote target MCJIT support doesn't handle
|
|
|
|
// this yet. It could. FIXME.
|
|
|
|
if (!RemoteMCJIT) {
|
|
|
|
// Run static destructors.
|
|
|
|
EE->runStaticConstructorsDestructors(true);
|
|
|
|
|
|
|
|
// If the program didn't call exit explicitly, we should call it now.
|
|
|
|
// This ensures that any atexit handlers get called correctly.
|
|
|
|
if (Function *ExitF = dyn_cast<Function>(Exit)) {
|
|
|
|
std::vector<GenericValue> Args;
|
|
|
|
GenericValue ResultGV;
|
|
|
|
ResultGV.IntVal = APInt(32, Result);
|
|
|
|
Args.push_back(ResultGV);
|
|
|
|
EE->runFunction(ExitF, Args);
|
|
|
|
errs() << "ERROR: exit(" << Result << ") returned!\n";
|
|
|
|
abort();
|
|
|
|
} else {
|
|
|
|
errs() << "ERROR: exit defined with wrong prototype!\n";
|
|
|
|
abort();
|
|
|
|
}
|
2003-12-26 06:14:47 +00:00
|
|
|
}
|
2012-09-05 16:50:34 +00:00
|
|
|
return Result;
|
2001-08-23 17:05:04 +00:00
|
|
|
}
|