// (C) 2009-2011 Novell, Inc.
// Copyright 2011-2015 Xamarin, Inc (http://www.xamarin.com)
//
-
+// Licensed under the MIT license. See LICENSE file in the project root for full license information.
//
// Mono's internal header files are not C++ clean, so avoid including them if
// possible
#include <llvm-c/ExecutionEngine.h>
#include "mini-llvm-cpp.h"
+#include "llvm-jit.h"
+
+#if !defined(MONO_CROSS_COMPILE) && LLVM_API_VERSION > 100
+
+/*
+ * LLVM 3.9 uses the OrcJIT APIs
+ */
+
+#include <llvm/Support/raw_ostream.h>
+#include <llvm/Support/Host.h>
+#include <llvm/Support/TargetSelect.h>
+#include <llvm/IR/Mangler.h>
+#include <llvm/ExecutionEngine/ExecutionEngine.h>
+#include "llvm/ExecutionEngine/Orc/CompileUtils.h"
+#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
+#include "llvm/ExecutionEngine/Orc/LambdaResolver.h"
+#if LLVM_API_VERSION >= 500
+#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
+#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
+#include "llvm/ExecutionEngine/JITSymbol.h"
+#else
+#include "llvm/ExecutionEngine/Orc/ObjectLinkingLayer.h"
+#endif
+
+#include <cstdlib>
+
+extern "C" {
+#include <mono/utils/mono-dl.h>
+}
+
+using namespace llvm;
+using namespace llvm::orc;
+
+extern cl::opt<bool> EnableMonoEH;
+extern cl::opt<std::string> MonoEHFrameSymbol;
+
+void
+mono_llvm_set_unhandled_exception_handler (void)
+{
+}
+
+template <typename T>
+static std::vector<T> singletonSet(T t) {
+ std::vector<T> Vec;
+ Vec.push_back(std::move(t));
+ return Vec;
+}
+
+#ifdef __MINGW32__
+
+#include <stddef.h>
+extern void *memset(void *, int, size_t);
+void bzero (void *to, size_t count) { memset (to, 0, count); }
+
+#endif
+
+static AllocCodeMemoryCb *alloc_code_mem_cb;
+
+class MonoJitMemoryManager : public RTDyldMemoryManager
+{
+public:
+ ~MonoJitMemoryManager() override;
+
+ uint8_t *allocateDataSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID,
+ StringRef SectionName,
+ bool IsReadOnly) override;
+
+ uint8_t *allocateCodeSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID,
+ StringRef SectionName) override;
+
+ bool finalizeMemory(std::string *ErrMsg = nullptr) override;
+};
+
+MonoJitMemoryManager::~MonoJitMemoryManager()
+{
+}
+
+uint8_t *
+MonoJitMemoryManager::allocateDataSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID,
+ StringRef SectionName,
+ bool IsReadOnly) {
+ uint8_t *res = (uint8_t*)malloc (Size);
+ assert (res);
+ memset (res, 0, Size);
+ return res;
+}
+
+uint8_t *
+MonoJitMemoryManager::allocateCodeSection(uintptr_t Size,
+ unsigned Alignment,
+ unsigned SectionID,
+ StringRef SectionName)
+{
+ return alloc_code_mem_cb (NULL, Size);
+}
+
+bool
+MonoJitMemoryManager::finalizeMemory(std::string *ErrMsg)
+{
+ return false;
+}
+
+class MonoLLVMJIT {
+public:
+ /* We use our own trampoline infrastructure instead of the Orc one */
+#if LLVM_API_VERSION >= 500
+ typedef RTDyldObjectLinkingLayer ObjLayerT;
+ typedef IRCompileLayer<ObjLayerT, SimpleCompiler> CompileLayerT;
+ typedef CompileLayerT::ModuleHandleT ModuleHandleT;
+#else
+ typedef ObjectLinkingLayer<> ObjLayerT;
+ typedef IRCompileLayer<ObjLayerT> CompileLayerT;
+ typedef CompileLayerT::ModuleSetHandleT ModuleHandleT;
+#endif
+
+ MonoLLVMJIT (TargetMachine *TM, MonoJitMemoryManager *mm)
+#if LLVM_API_VERSION >= 500
+ : TM(TM), ObjectLayer([=] { return std::shared_ptr<RuntimeDyld::MemoryManager> (mm); }),
+#else
+ : TM(TM),
+#endif
+ CompileLayer (ObjectLayer, SimpleCompiler (*TM)),
+ modules() {
+ }
+
+#if LLVM_API_VERSION >= 500
+ ModuleHandleT addModule(Function *F, std::shared_ptr<Module> M) {
+#else
+ ModuleHandleT addModule(Function *F, Module *M) {
+#endif
+ auto Resolver = createLambdaResolver(
+ [&](const std::string &Name) {
+ const char *name = Name.c_str ();
+#if LLVM_API_VERSION >= 500
+ JITSymbolFlags flags = JITSymbolFlags ();
+#else
+ JITSymbolFlags flags = (JITSymbolFlags)0;
+#endif
+ if (!strcmp (name, "___bzero")) {
+#if LLVM_API_VERSION >= 500
+ return JITSymbol((uint64_t)(gssize)(void*)bzero, flags);
+#else
+ return RuntimeDyld::SymbolInfo((uint64_t)(gssize)(void*)bzero, flags);
+#endif
+ }
+
+ MonoDl *current;
+ char *err;
+ void *symbol;
+ current = mono_dl_open (NULL, 0, NULL);
+ g_assert (current);
+ if (name [0] == '_')
+ err = mono_dl_symbol (current, name + 1, &symbol);
+ else
+ err = mono_dl_symbol (current, name, &symbol);
+ mono_dl_close (current);
+ if (!symbol)
+ outs () << "R: " << Name << "\n";
+ assert (symbol);
+#if LLVM_API_VERSION >= 500
+ return JITSymbol((uint64_t)(gssize)symbol, flags);
+#else
+ return RuntimeDyld::SymbolInfo((uint64_t)(gssize)symbol, flags);
+#endif
+ },
+ [](const std::string &S) {
+ outs () << "R2: " << S << "\n";
+ assert (0);
+ return nullptr;
+ } );
+
+#if LLVM_API_VERSION >= 500
+ ModuleHandleT m = CompileLayer.addModule(M,
+ std::move(Resolver));
+ return m;
+#else
+ return CompileLayer.addModuleSet(singletonSet(M),
+ make_unique<MonoJitMemoryManager>(),
+ std::move(Resolver));
+#endif
+ }
+
+ std::string mangle(const std::string &Name) {
+ std::string MangledName;
+ {
+ raw_string_ostream MangledNameStream(MangledName);
+ Mangler::getNameWithPrefix(MangledNameStream, Name,
+ TM->createDataLayout());
+ }
+ return MangledName;
+ }
+
+ std::string mangle(const GlobalValue *GV) {
+ std::string MangledName;
+ {
+ Mangler Mang;
+
+ raw_string_ostream MangledNameStream(MangledName);
+ Mang.getNameWithPrefix(MangledNameStream, GV, false);
+ }
+ return MangledName;
+ }
+
+ gpointer compile (Function *F, int nvars, LLVMValueRef *callee_vars, gpointer *callee_addrs, gpointer *eh_frame) {
+ F->getParent ()->setDataLayout (TM->createDataLayout ());
+#if LLVM_API_VERSION >= 500
+ // Orc uses a shared_ptr to refer to modules so we have to save them ourselves to keep a ref
+ std::shared_ptr<Module> m (F->getParent ());
+ modules.push_back (m);
+ auto ModuleHandle = addModule (F, m);
+#else
+ auto ModuleHandle = addModule (F, F->getParent ());
+#endif
+ auto BodySym = CompileLayer.findSymbolIn(ModuleHandle, mangle (F), false);
+ auto BodyAddr = BodySym.getAddress();
+ assert (BodyAddr);
+
+ for (int i = 0; i < nvars; ++i) {
+ GlobalVariable *var = unwrap<GlobalVariable>(callee_vars [i]);
+
+ auto sym = CompileLayer.findSymbolIn (ModuleHandle, mangle (var->getName ()), true);
+ auto addr = sym.getAddress ();
+ g_assert (addr);
+ callee_addrs [i] = (gpointer)addr;
+ }
+
+ auto ehsym = CompileLayer.findSymbolIn(ModuleHandle, "mono_eh_frame", false);
+ auto ehaddr = ehsym.getAddress ();
+ g_assert (ehaddr);
+ *eh_frame = (gpointer)ehaddr;
+
+ return (gpointer)BodyAddr;
+ }
+
+private:
+ TargetMachine *TM;
+ ObjLayerT ObjectLayer;
+ CompileLayerT CompileLayer;
+ std::vector<std::shared_ptr<Module>> modules;
+};
+
+static MonoLLVMJIT *jit;
+static MonoJitMemoryManager *mono_mm;
+
+MonoEERef
+mono_llvm_create_ee (LLVMModuleProviderRef MP, AllocCodeMemoryCb *alloc_cb, FunctionEmittedCb *emitted_cb, ExceptionTableCb *exception_cb, DlSymCb *dlsym_cb, LLVMExecutionEngineRef *ee)
+{
+ alloc_code_mem_cb = alloc_cb;
+
+ InitializeNativeTarget ();
+ InitializeNativeTargetAsmPrinter();
+
+ EnableMonoEH = true;
+ MonoEHFrameSymbol = "mono_eh_frame";
+
+ EngineBuilder EB;
+#if defined(TARGET_AMD64) || defined(TARGET_X86)
+ std::vector<std::string> attrs;
+ // FIXME: Autodetect this
+ attrs.push_back("sse3");
+ attrs.push_back("sse4.1");
+ EB.setMAttrs (attrs);
+#endif
+ auto TM = EB.selectTarget ();
+ assert (TM);
+
+ mono_mm = new MonoJitMemoryManager ();
+ jit = new MonoLLVMJIT (TM, mono_mm);
-#if !defined(MONO_CROSS_COMPILE) && LLVM_API_VERSION < 100
+ return NULL;
+}
+
+/*
+ * mono_llvm_compile_method:
+ *
+ * Compile METHOD to native code. Compute the addresses of the variables in CALLEE_VARS and store them into
+ * CALLEE_ADDRS. Return the EH frame address in EH_FRAME.
+ */
+gpointer
+mono_llvm_compile_method (MonoEERef mono_ee, LLVMValueRef method, int nvars, LLVMValueRef *callee_vars, gpointer *callee_addrs, gpointer *eh_frame)
+{
+ return jit->compile (unwrap<Function> (method), nvars, callee_vars, callee_addrs, eh_frame);
+}
+
+void
+mono_llvm_dispose_ee (MonoEERef *eeref)
+{
+}
+
+void
+LLVMAddGlobalMapping(LLVMExecutionEngineRef EE, LLVMValueRef Global,
+ void* Addr)
+{
+ g_assert_not_reached ();
+}
+
+void*
+LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global)
+{
+ g_assert_not_reached ();
+ return NULL;
+}
+
+#elif !defined(MONO_CROSS_COMPILE) && LLVM_API_VERSION < 100
#include <stdint.h>
force_pass_linking (void)
{
// Make sure the rest is linked in, but never executed
- if (g_getenv ("FOO") != (char*)-1)
+ char *foo = g_getenv ("FOO");
+ gboolean ret = (foo != (char*)-1);
+ g_free (foo);
+
+ if (ret)
return;
// This is a subset of the passes in LinkAllPasses.h
void
mono_llvm_optimize_method (MonoEERef eeref, LLVMValueRef method)
{
+ g_assert_not_reached ();
+}
+
+gpointer
+mono_llvm_compile_method (MonoEERef mono_ee, LLVMValueRef method, int nvars, LLVMValueRef *callee_vars, gpointer *callee_addrs, gpointer *eh_frame)
+{
+ g_assert_not_reached ();
+ return NULL;
}
void
projects / mono.git / blobdiff