Work on CPU, codegen skeleton, and thunk.

include/xenia/cpu.h

@@ -13,6 +13,7 @@
 #include <xenia/common.h>
 #include <xenia/core.h>
 
+#include <xenia/kernel/export.h>
 #include <xenia/kernel/module.h>
 
 
@@ -33,7 +34,8 @@ void xe_cpu_release(xe_cpu_ref cpu);
 xe_pal_ref xe_cpu_get_pal(xe_cpu_ref cpu);
 xe_memory_ref xe_cpu_get_memory(xe_cpu_ref cpu);
 
-int xe_cpu_prepare_module(xe_cpu_ref cpu, xe_module_ref module);
+int xe_cpu_prepare_module(xe_cpu_ref cpu, xe_module_ref module,
+                          xe_kernel_export_resolver_ref export_resolver);
 
 int xe_cpu_execute(xe_cpu_ref cpu, uint32_t address);
 

src/cpu/codegen.cc

@@ -0,0 +1,194 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "cpu/codegen.h"
+
+#include <llvm/Linker.h>
+#include <llvm/PassManager.h>
+#include <llvm/Analysis/Verifier.h>
+#include <llvm/IR/Attributes.h>
+#include <llvm/IR/DataLayout.h>
+#include <llvm/IR/DerivedTypes.h>
+#include <llvm/IR/IRBuilder.h>
+#include <llvm/Transforms/IPO.h>
+#include <llvm/Transforms/IPO/PassManagerBuilder.h>
+
+using namespace llvm;
+
+
+void xe_cpu_codegen_add_imports(xe_memory_ref memory,
+                                xe_kernel_export_resolver_ref export_resolver,
+                                xe_module_ref module, Module *m);
+void xe_cpu_codegen_add_missing_import(
+    Module *m, const xe_xex2_import_library_t *library,
+    const xe_xex2_import_info_t* info, xe_kernel_export_t *kernel_export);
+void xe_cpu_codegen_add_import(
+    Module *m, const xe_xex2_import_library_t *library,
+    const xe_xex2_import_info_t* info, xe_kernel_export_t *kernel_export);
+void xe_cpu_codegen_optimize(Module *m, Function *fn);
+
+
+llvm::Module *xe_cpu_codegen(llvm::LLVMContext& context, xe_memory_ref memory,
+                             xe_kernel_export_resolver_ref export_resolver,
+                             xe_module_ref module, Module *shared_module,
+                             xe_codegen_options_t options) {
+  std::string error_message;
+
+  // Initialize the module.
+  Module *m = new Module("generated.xex", context);
+  // TODO(benavnik): addModuleFlag?
+
+  // Link shared module into generated module.
+  // This gives us a single module that we can optimize and prevents the need
+  // for foreward declarations.
+  Linker::LinkModules(m, shared_module, 0, &error_message);
+
+  // Add import thunks/etc.
+  xe_cpu_codegen_add_imports(memory, export_resolver, module, m);
+
+  // Add export wrappers.
+  //
+
+  Constant* c = m->getOrInsertFunction("mul_add",
+  /*ret type*/                         IntegerType::get(context, 32),
+  /*args*/                             IntegerType::get(context, 32),
+                                       IntegerType::get(context, 32),
+                                       IntegerType::get(context, 32),
+  /*varargs terminated with null*/     NULL);
+
+  Function* mul_add = cast<Function>(c);
+  mul_add->setCallingConv(CallingConv::C);
+
+  Function::arg_iterator args = mul_add->arg_begin();
+  Value* x = args++;
+  x->setName("x");
+  Value* y = args++;
+  y->setName("y");
+  Value* z = args++;
+  z->setName("z");
+
+  BasicBlock* block = BasicBlock::Create(getGlobalContext(), "entry", mul_add);
+  IRBuilder<> builder(block);
+
+  Value* tmp = builder.CreateBinOp(Instruction::Mul,
+                                   x, y, "tmp");
+  Value* tmp2 = builder.CreateBinOp(Instruction::Add,
+                                    tmp, z, "tmp2");
+
+  builder.CreateRet(tmp2);
+
+  // Run the optimizer on the function.
+  // Doing this here keeps the size of the IR small and speeds up the later
+  // passes.
+  xe_cpu_codegen_optimize(m, mul_add);
+
+  return m;
+}
+
+void xe_cpu_codegen_add_imports(xe_memory_ref memory,
+                                xe_kernel_export_resolver_ref export_resolver,
+                                xe_module_ref module, Module *m) {
+  xe_xex2_ref xex = xe_module_get_xex(module);
+  const xe_xex2_header_t *header = xe_xex2_get_header(xex);
+
+  for (size_t n = 0; n < header->import_library_count; n++) {
+    const xe_xex2_import_library_t *library = &header->import_libraries[n];
+
+    xe_xex2_import_info_t* import_infos;
+    size_t import_info_count;
+    XEIGNORE(xe_xex2_get_import_infos(xex, library,
+                                      &import_infos, &import_info_count));
+
+    for (size_t i = 0; i < import_info_count; i++) {
+      const xe_xex2_import_info_t *info = &import_infos[i];
+      xe_kernel_export_t *kernel_export =
+          xe_kernel_export_resolver_get_by_ordinal(
+              export_resolver, library->name, info->ordinal);
+      if (!kernel_export || !xe_kernel_export_is_implemented(kernel_export)) {
+        // Not implemented or known.
+        xe_cpu_codegen_add_missing_import(m, library, info, kernel_export);
+      } else {
+        // Implemented.
+        xe_cpu_codegen_add_import(m, library, info, kernel_export);
+      }
+    }
+
+    xe_free(import_infos);
+  }
+
+  xe_xex2_release(xex);
+}
+
+void xe_cpu_codegen_add_missing_import(
+    Module *m, const xe_xex2_import_library_t *library,
+    const xe_xex2_import_info_t* info, xe_kernel_export_t *kernel_export) {
+  LLVMContext& context = m->getContext();
+
+  char name[128];
+  xesnprintfa(name, XECOUNT(name), "__%s_%.8X",
+              library->name, kernel_export->ordinal);
+
+  // TODO(benvanik): add name as comment/alias?
+  // name = kernel_export->name;
+
+  if (info->thunk_address) {
+    AttributeWithIndex awi[] = {
+      //AttributeWithIndex::get(context, 2, Attributes::NoCapture),
+      AttributeWithIndex::get(context,
+          AttributeSet::FunctionIndex, Attribute::NoUnwind),
+    };
+    AttributeSet attrs = AttributeSet::get(context, awi);
+
+    std::vector<Type*> args;
+    Type *return_type = Type::getInt32Ty(context);
+
+    FunctionType *ft = FunctionType::get(return_type,
+                                         ArrayRef<Type*>(args), false);
+    Function *f = cast<Function>(m->getOrInsertFunction(
+        StringRef(name), ft, attrs));
+    f->setCallingConv(CallingConv::C);
+    f->setVisibility(GlobalValue::DefaultVisibility);
+
+    BasicBlock* block = BasicBlock::Create(context, "entry", f);
+    IRBuilder<> builder(block);
+    Value *tmp = builder.getInt32(0);
+    builder.getInt32(123);
+    builder.CreateRet(tmp);
+
+    xe_cpu_codegen_optimize(m, f);
+
+    //GlobalAlias *alias = new GlobalAlias(f->getType(), GlobalValue::InternalLinkage, name, f, m);
+  //   printf("   F %.8X %.8X %.3X (%3d) %s %s\n",
+  //          info->value_address, info->thunk_address, info->ordinal,
+  //          info->ordinal, implemented ? "  " : "!!", name);
+  } else {
+  //   printf("   V %.8X          %.3X (%3d) %s %s\n",
+  //          info->value_address, info->ordinal, info->ordinal,
+  //          implemented ? "  " : "!!", name);
+  }
+}
+
+void xe_cpu_codegen_add_import(
+    Module *m, const xe_xex2_import_library_t *library,
+    const xe_xex2_import_info_t* info, xe_kernel_export_t *kernel_export) {
+  //
+}
+
+void xe_cpu_codegen_optimize(Module *m, Function *fn) {
+  FunctionPassManager pm(m);
+  PassManagerBuilder pmb;
+  pmb.OptLevel      = 3;
+  pmb.SizeLevel     = 0;
+  pmb.Inliner       = createFunctionInliningPass();
+  pmb.Vectorize     = true;
+  pmb.LoopVectorize = true;
+  pmb.populateFunctionPassManager(pm);
+  pm.add(createVerifierPass());
+  pm.run(*fn);
+}

src/cpu/codegen.h

@@ -0,0 +1,31 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_CPU_CODEGEN_H_
+#define XENIA_CPU_CODEGEN_H_
+
+#include <xenia/core/memory.h>
+#include <xenia/kernel/module.h>
+
+#include <llvm/IR/LLVMContext.h>
+#include <llvm/IR/Module.h>
+
+
+typedef struct {
+  int reserved;
+} xe_codegen_options_t;
+
+
+llvm::Module *xe_cpu_codegen(llvm::LLVMContext& context, xe_memory_ref memory,
+                             xe_kernel_export_resolver_ref export_resolver,
+                             xe_module_ref module, llvm::Module *shared_module,
+                             xe_codegen_options_t options);
+
+
+#endif  // XENIA_CPU_CODEGEN_H_

src/cpu/cpu.cc

@@ -9,14 +9,39 @@
 
 #include <xenia/cpu.h>
 
+#include <llvm/PassManager.h>
+#include <llvm/Analysis/Verifier.h>
+#include <llvm/Bitcode/ReaderWriter.h>
+#include <llvm/ExecutionEngine/GenericValue.h>
+#include <llvm/ExecutionEngine/ExecutionEngine.h>
+#include <llvm/ExecutionEngine/Interpreter.h>
+#include <llvm/ExecutionEngine/JIT.h>
+#include <llvm/IR/DataLayout.h>
 #include <llvm/IR/DerivedTypes.h>
-#include <llvm/IR/IRBuilder.h>
 #include <llvm/IR/LLVMContext.h>
 #include <llvm/IR/Module.h>
+#include <llvm/Support/Host.h>
+#include <llvm/Support/ManagedStatic.h>
+#include <llvm/Support/MemoryBuffer.h>
+#include <llvm/Support/raw_ostream.h>
+#include <llvm/Support/system_error.h>
+#include <llvm/Support/TargetSelect.h>
+#include <llvm/Support/Threading.h>
+#include <llvm/Transforms/IPO.h>
+#include <llvm/Transforms/IPO/PassManagerBuilder.h>
+
+#include "cpu/codegen.h"
+#include "cpu/xethunk/xethunk.h"
 
 using namespace llvm;
 
 
+typedef struct {
+  xe_module_ref module;
+  LLVMContext   *context;
+  Module        *m;
+} xe_cpu_module_entry_t;
+
 typedef struct xe_cpu {
   xe_ref_t ref;
 
@@ -24,9 +49,18 @@ typedef struct xe_cpu {
 
   xe_pal_ref      pal;
   xe_memory_ref   memory;
+
+  std::vector<xe_cpu_module_entry_t> entries;
+
+  ExecutionEngine *engine;
 } xe_cpu_t;
 
 
+int xe_cpu_setup_engine(xe_cpu_ref cpu, Module *gen_module);
+int xe_cpu_init_module(xe_cpu_ref, Module *gen_module);
+void xe_cpu_uninit_module(xe_cpu_ref cpu, xe_cpu_module_entry_t *module_entry);
+
+
 xe_cpu_ref xe_cpu_create(xe_pal_ref pal, xe_memory_ref memory,
                          xe_cpu_options_t options) {
   xe_cpu_ref cpu = (xe_cpu_ref)xe_calloc(sizeof(xe_cpu));
@@ -37,10 +71,32 @@ xe_cpu_ref xe_cpu_create(xe_pal_ref pal, xe_memory_ref memory,
   cpu->pal = xe_pal_retain(pal);
   cpu->memory = xe_memory_retain(memory);
 
+  LLVMLinkInInterpreter();
+  LLVMLinkInJIT();
+  InitializeNativeTarget();
+  XEEXPECTTRUE(llvm_start_multithreaded());
+
   return cpu;
+
+XECLEANUP:
+  xe_cpu_release(cpu);
+  return NULL;
 }
 
 void xe_cpu_dealloc(xe_cpu_ref cpu) {
+  // Cleanup all modules.
+  for (std::vector<xe_cpu_module_entry_t>::iterator it = cpu->entries.begin();
+       it != cpu->entries.end(); ++it) {
+    xe_cpu_uninit_module(cpu, &*it);
+    cpu->engine->removeModule(it->m);
+    delete it->m;
+    delete it->context;
+    xe_module_release(it->module);
+  }
+
+  delete cpu->engine;
+  llvm_shutdown();
+
   xe_memory_release(cpu->memory);
   xe_pal_release(cpu->pal);
 }
@@ -62,52 +118,163 @@ xe_memory_ref xe_cpu_get_memory(xe_cpu_ref cpu) {
   return xe_memory_retain(cpu->memory);
 }
 
-int xe_cpu_prepare_module(xe_cpu_ref cpu, xe_module_ref module) {
+int xe_cpu_setup_engine(xe_cpu_ref cpu, Module *gen_module) {
-  // TODO(benvanik): lookup the module in the cache.
+  if (cpu->engine) {
+    // Engine already initialized - just add the module.
+    cpu->engine->addModule(gen_module);
+    return 0;
+  }
 
-  // TODO(benvanik): implement prepare module.
+  std::string error_message;
+  cpu->engine = ExecutionEngine::create(gen_module, false, &error_message,
+                                        CodeGenOpt::Aggressive);
 
-  XELOGCPU(XT("cpu"));
-
-  LLVMContext &context = getGlobalContext();
-  //IRBuilder<> builder(context);
-  Module *m = new Module("my cool jit", context);
-
-  Constant* c = m->getOrInsertFunction("mul_add",
-  /*ret type*/                         IntegerType::get(context, 32),
-  /*args*/                             IntegerType::get(context, 32),
-                                       IntegerType::get(context, 32),
-                                       IntegerType::get(context, 32),
-  /*varargs terminated with null*/     NULL);
-
-  Function* mul_add = cast<Function>(c);
-  mul_add->setCallingConv(CallingConv::C);
-
-  Function::arg_iterator args = mul_add->arg_begin();
-  Value* x = args++;
-  x->setName("x");
-  Value* y = args++;
-  y->setName("y");
-  Value* z = args++;
-  z->setName("z");
-
-  BasicBlock* block = BasicBlock::Create(getGlobalContext(), "entry", mul_add);
-  IRBuilder<> builder(block);
-
-  Value* tmp = builder.CreateBinOp(Instruction::Mul,
-                                   x, y, "tmp");
-  Value* tmp2 = builder.CreateBinOp(Instruction::Add,
-                                    tmp, z, "tmp2");
-
-  builder.CreateRet(tmp2);
-
-  XELOGD(XT("woo %d"), 123);
-
-  m->dump();
-  delete m;
   return 0;
 }
 
+int xe_cpu_prepare_module(xe_cpu_ref cpu, xe_module_ref module,
+                          xe_kernel_export_resolver_ref export_resolver) {
+  int result_code = 1;
+  std::string error_message;
+
+  LLVMContext *context = NULL;
+  OwningPtr<MemoryBuffer> shared_module_buffer;
+  Module *gen_module = NULL;
+  Module *shared_module = NULL;
+  raw_ostream *outs = NULL;
+
+  PassManager pm;
+  PassManagerBuilder pmb;
+
+  // TODO(benvanik): embed the bc file into the emulator.
+  const char *thunk_path = "src/cpu/xethunk/xethunk.bc";
+
+  // Create a LLVM context for this prepare.
+  // This is required to ensure thread safety/etc.
+  context = new LLVMContext();
+
+  // Calculate a cache path based on the module, the CPU version, and other
+  // bits.
+  // TODO(benvanik): cache path calculation.
+  const char *cache_path = "build/generated.bc";
+
+  // Check the cache to see if the bitcode exists.
+  // If it does, load that module directly. In the future we could also cache
+  // on linked binaries but that requires more safety around versioning.
+  // TODO(benvanik): check cache for module bitcode and load.
+  // if (path_exists(cache_key)) {
+  //   gen_module = load_bitcode(cache_key);
+  // }
+
+  // If not found in cache, generate a new module.
+  if (!gen_module) {
+    // Load shared bitcode files.
+    // These contain globals and common thunk code that are used by the
+    // generated code.
+    XEEXPECTZERO(MemoryBuffer::getFile(thunk_path, shared_module_buffer));
+    shared_module = ParseBitcodeFile(&*shared_module_buffer, *context,
+                                     &error_message);
+    XEEXPECTNOTNULL(shared_module);
+
+    // Build the module from the source code.
+    xe_codegen_options_t codegen_options;
+    xe_zero_struct(&codegen_options, sizeof(codegen_options));
+    gen_module = xe_cpu_codegen(*context, cpu->memory, export_resolver,
+                                module, shared_module,
+                                codegen_options);
+
+    // Write to cache.
+    outs = new raw_fd_ostream(cache_path, error_message,
+                              raw_fd_ostream::F_Binary);
+    XEEXPECTTRUE(error_message.empty());
+    WriteBitcodeToFile(gen_module, *outs);
+  }
+
+  // Link optimizations.
+  XEEXPECTZERO(gen_module->MaterializeAllPermanently(&error_message));
+
+  // Reset target triple (ignore what's in xethunk).
+  gen_module->setTargetTriple(llvm::sys::getDefaultTargetTriple());
+
+  // Run full module optimizations.
+  pm.add(new DataLayout(gen_module));
+  pm.add(createVerifierPass());
+  pmb.OptLevel      = 3;
+  pmb.SizeLevel     = 0;
+  pmb.Inliner       = createFunctionInliningPass();
+  pmb.Vectorize     = true;
+  pmb.LoopVectorize = true;
+  pmb.populateModulePassManager(pm);
+  pmb.populateLTOPassManager(pm, false, true);
+  pm.add(createVerifierPass());
+  pm.run(*gen_module);
+
+  // TODO(benvanik): experiment with LLD to see if we can write out a dll.
+
+  // Setup the execution engine (if needed).
+  // The engine is required to get the data layout and other values.
+  XEEXPECTZERO(xe_cpu_setup_engine(cpu, gen_module));
+
+  // Initialize the module.
+  XEEXPECTZERO(xe_cpu_init_module(cpu, gen_module));
+
+  // Force JIT of all functions.
+  for (Module::iterator I = gen_module->begin(), E = gen_module->end();
+       I != E; I++) {
+    Function* fn = &*I;
+    if (!fn->isDeclaration()) {
+      cpu->engine->getPointerToFunction(fn);
+    }
+  }
+
+  gen_module->dump();
+
+  // Stash the module entry to allow cleanup later.
+  xe_cpu_module_entry_t module_entry;
+  module_entry.module   = xe_module_retain(module);
+  module_entry.context  = context;
+  module_entry.m        = gen_module;
+  cpu->entries.push_back(module_entry);
+
+  result_code = 0;
+XECLEANUP:
+  delete outs;
+  delete shared_module;
+  if (result_code) {
+    delete gen_module;
+    delete context;
+  }
+  return result_code;
+}
+
+int xe_cpu_init_module(xe_cpu_ref cpu, Module *gen_module) {
+  // Run static initializers. I'm not sure we'll have any, but who knows.
+  cpu->engine->runStaticConstructorsDestructors(gen_module, false);
+
+  // Prepare init options.
+  xe_module_init_options_t init_options;
+  xe_zero_struct(&init_options, sizeof(init_options));
+  init_options.memory_base = xe_memory_addr(cpu->memory, 0);
+
+  // Grab the init function and call it.
+  Function *xe_module_init = gen_module->getFunction("xe_module_init");
+  std::vector<GenericValue> args;
+  args.push_back(GenericValue(&init_options));
+  GenericValue ret = cpu->engine->runFunction(xe_module_init, args);
+
+  return ret.IntVal.getSExtValue();
+}
+
+void xe_cpu_uninit_module(xe_cpu_ref cpu, xe_cpu_module_entry_t *module_entry) {
+  // Grab function and call it.
+  Function *xe_module_uninit = module_entry->m->getFunction("xe_module_uninit");
+  std::vector<GenericValue> args;
+  cpu->engine->runFunction(xe_module_uninit, args);
+
+  // Run static destructors.
+  cpu->engine->runStaticConstructorsDestructors(module_entry->m, true);
+}
+
 int xe_cpu_execute(xe_cpu_ref cpu, uint32_t address) {
   // TODO(benvanik): implement execute.
   return 0;

src/cpu/sources.gypi

@@ -1,6 +1,7 @@
 # Copyright 2013 Ben Vanik. All Rights Reserved.
 {
   'sources': [
+    'codegen.cc',
     'cpu.cc',
   ],
 }

src/cpu/xethunk/xethunk.c

@@ -0,0 +1,39 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+/**
+ * This file is compiled with clang to produce LLVM bitcode.
+ * When the emulator goes to build a full module it then imports this code into
+ * the generated module to provide globals/other shared values.
+ *
+ * Changes to this file require building a new version and checking it into the
+ * repo on a machine that has clang.
+ *
+ *     # rebuild the xethunk.bc/.ll files:
+ *     xb xethunk
+ */
+
+// NOTE: only headers in this directory should be included.
+#include "xethunk.h"
+
+
+// The base pointer that all guest addresses should be relative to.
+static void* xe_memory_base;
+
+
+int xe_module_init(xe_module_init_options_t *options) {
+  xe_memory_base = options->memory_base;
+
+  // TODO(benvanik): setup call table, etc?
+
+  return 0;
+}
+
+void xe_module_uninit() {
+}

src/cpu/xethunk/xethunk.h

@@ -0,0 +1,27 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2013 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+/**
+ * This file is shared between xethunk and the loader to pass structures
+ * between the two. Since this file is compiled with the LLVM clang it cannot
+ * include any other files.
+ */
+
+#ifndef XENIA_CPU_XELIB_H_
+#define XENIA_CPU_XELIB_H_
+
+
+typedef struct {
+  void*   memory_base;
+
+  // TODO(benvanik): execute call thunk
+} xe_module_init_options_t;
+
+
+#endif  // XENIA_CPU_XELIB_H_

src/cpu/xethunk/xethunk.ll

@@ -0,0 +1,21 @@
+; ModuleID = 'src/cpu/xethunk/xethunk.bc'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-apple-macosx10.8.0"
+
+%struct.xe_module_init_options_t = type { i8* }
+
+@xe_memory_base = internal global i8* null, align 8
+
+define i32 @xe_module_init(%struct.xe_module_init_options_t* %options) nounwind uwtable ssp {
+  %1 = alloca %struct.xe_module_init_options_t*, align 8
+  store %struct.xe_module_init_options_t* %options, %struct.xe_module_init_options_t** %1, align 8
+  %2 = load %struct.xe_module_init_options_t** %1, align 8
+  %3 = getelementptr inbounds %struct.xe_module_init_options_t* %2, i32 0, i32 0
+  %4 = load i8** %3, align 8
+  store i8* %4, i8** @xe_memory_base, align 8
+  ret i32 0
+}
+
+define void @xe_module_uninit() nounwind uwtable ssp {
+  ret void
+}

src/kernel/kernel.cc

@@ -122,7 +122,8 @@ xe_module_ref xe_kernel_load_module(xe_kernel_ref kernel,
   }
 
   // Prepare the module.
-  XEEXPECTZERO(xe_cpu_prepare_module(kernel->cpu, module));
+  XEEXPECTZERO(xe_cpu_prepare_module(kernel->cpu, module,
+                                     kernel->export_resolver));
 
   // Stash in modules list (takes reference).
   // TODO(benvanik): stash in list.

xenia-build.py

@@ -61,6 +61,7 @@ def discover_commands():
       'pull': PullCommand(),
       'gyp': GypCommand(),
       'build': BuildCommand(),
+      'xethunk': XethunkCommand(),
       'clean': CleanCommand(),
       'nuke': NukeCommand(),
       }
@@ -379,6 +380,33 @@ class BuildCommand(Command):
     return 0
 
 
+class XethunkCommand(Command):
+  """'xethunk' command."""
+
+  def __init__(self, *args, **kwargs):
+    super(XethunkCommand, self).__init__(
+        name='xethunk',
+        help_short='Updates the xethunk.bc file.',
+        *args, **kwargs)
+
+  def execute(self, args, cwd):
+    print 'Building xethunk...'
+    print ''
+
+    path = 'src/cpu/xethunk/xethunk'
+    result = shell_call('clang -emit-llvm -O0 -c %s.c -o %s.bc' % (path, path),
+                        throw_on_error=False)
+    if result != 0:
+      return result
+
+    shell_call('build/llvm/release/bin/llvm-dis %s.bc -o %s.ll' % (path, path))
+
+    shell_call('cat %s.ll' % (path))
+
+    print 'Success!'
+    return 0
+
+
 class CleanCommand(Command):
   """'clean' command."""
 

xenia.gyp

@@ -74,7 +74,7 @@
           ['_type=="executable"', {
             'libraries': [
               '<!@(<(llvm_config) --ldflags)',
-              '<!@(<(llvm_config) --libs core)',
+              '<!@(<(llvm_config) --libs all)',
             ],
             'library_dirs': [
               # NOTE: this doesn't actually do anything...
@@ -84,7 +84,7 @@
             'xcode_settings': {
               'OTHER_LDFLAGS': [
                 '<!@(<(llvm_config) --ldflags)',
-                '<!@(<(llvm_config) --libs core)',
+                '<!@(<(llvm_config) --libs all)',
               ],
             },
           }],