X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=lib%2FExecutionEngine%2FExecutionEngineBindings.cpp;h=88e73bf253e496d2d46d316b714237212751569a;hb=7a88b655ccad0f128ea1a5e8ca433a8827a24ff3;hp=44fa92205b282410d13e310b6fd455a50fd6b984;hpb=d2755af8bda2e0fd80efb46556485c4cdbe8704a;p=oota-llvm.git

diff --git a/lib/ExecutionEngine/ExecutionEngineBindings.cpp b/lib/ExecutionEngine/ExecutionEngineBindings.cpp
index 44fa92205b2..88e73bf253e 100644
--- a/lib/ExecutionEngine/ExecutionEngineBindings.cpp
+++ b/lib/ExecutionEngine/ExecutionEngineBindings.cpp
@@ -15,13 +15,16 @@
 #include "llvm-c/ExecutionEngine.h"
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
 #include "llvm/ExecutionEngine/GenericValue.h"
+#include "llvm/ExecutionEngine/RTDyldMemoryManager.h"
+#include "llvm/IR/DerivedTypes.h"
+#include "llvm/IR/Module.h"
 #include "llvm/Support/ErrorHandling.h"
 #include <cstring>
 
 using namespace llvm;
 
 // Wrapping the C bindings types.
-DEFINE_SIMPLE_CONVERSION_FUNCTIONS(GenericValue,       LLVMGenericValueRef  )
+DEFINE_SIMPLE_CONVERSION_FUNCTIONS(GenericValue, LLVMGenericValueRef)
 
 inline DataLayout *unwrap(LLVMTargetDataRef P) {
   return reinterpret_cast<DataLayout*>(P);
@@ -152,18 +155,27 @@ LLVMBool LLVMCreateJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
   return 1;
 }
 
-LLVMBool LLVMCreateMCJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
-                                          LLVMModuleRef M,
-                                          LLVMMCJITCompilerOptions *PassedOptions,
-                                          size_t SizeOfPassedOptions,
-                                          char **OutError) {
+void LLVMInitializeMCJITCompilerOptions(LLVMMCJITCompilerOptions *PassedOptions,
+                                        size_t SizeOfPassedOptions) {
+  LLVMMCJITCompilerOptions options;
+  memset(&options, 0, sizeof(options)); // Most fields are zero by default.
+  options.CodeModel = LLVMCodeModelJITDefault;
+  
+  memcpy(PassedOptions, &options,
+         std::min(sizeof(options), SizeOfPassedOptions));
+}
+
+LLVMBool LLVMCreateMCJITCompilerForModule(
+    LLVMExecutionEngineRef *OutJIT, LLVMModuleRef M,
+    LLVMMCJITCompilerOptions *PassedOptions, size_t SizeOfPassedOptions,
+    char **OutError) {
   LLVMMCJITCompilerOptions options;
   // If the user passed a larger sized options struct, then they were compiled
   // against a newer LLVM. Tell them that something is wrong.
   if (SizeOfPassedOptions > sizeof(options)) {
     *OutError = strdup(
-      "Refusing to use options struct that is larger than my own; assuming LLVM "
-      "library mismatch.");
+      "Refusing to use options struct that is larger than my own; assuming "
+      "LLVM library mismatch.");
     return 1;
   }
   
@@ -171,11 +183,12 @@ LLVMBool LLVMCreateMCJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
   // any fields they didn't see are cleared. We must defend against fields being
   // set to the bitwise equivalent of zero, and assume that this means "do the
   // default" as if that option hadn't been available.
-  memset(&options, 0, sizeof(options));
+  LLVMInitializeMCJITCompilerOptions(&options, sizeof(options));
   memcpy(&options, PassedOptions, SizeOfPassedOptions);
   
   TargetOptions targetOptions;
   targetOptions.NoFramePointerElim = options.NoFramePointerElim;
+  targetOptions.EnableFastISel = options.EnableFastISel;
 
   std::string Error;
   EngineBuilder builder(unwrap(M));
@@ -183,7 +196,10 @@ LLVMBool LLVMCreateMCJITCompilerForModule(LLVMExecutionEngineRef *OutJIT,
          .setErrorStr(&Error)
          .setUseMCJIT(true)
          .setOptLevel((CodeGenOpt::Level)options.OptLevel)
+         .setCodeModel(unwrap(options.CodeModel))
          .setTargetOptions(targetOptions);
+  if (options.MCJMM)
+    builder.setMCJITMemoryManager(unwrap(options.MCJMM));
   if (ExecutionEngine *JIT = builder.create()) {
     *OutJIT = wrap(JIT);
     return 0;
@@ -298,7 +314,8 @@ LLVMBool LLVMFindFunction(LLVMExecutionEngineRef EE, const char *Name,
   return 1;
 }
 
-void *LLVMRecompileAndRelinkFunction(LLVMExecutionEngineRef EE, LLVMValueRef Fn) {
+void *LLVMRecompileAndRelinkFunction(LLVMExecutionEngineRef EE,
+                                     LLVMValueRef Fn) {
   return unwrap(EE)->recompileAndRelinkFunction(unwrap<Function>(Fn));
 }
 
@@ -316,3 +333,110 @@ void *LLVMGetPointerToGlobal(LLVMExecutionEngineRef EE, LLVMValueRef Global) {
   
   return unwrap(EE)->getPointerToGlobal(unwrap<GlobalValue>(Global));
 }
+
+/*===-- Operations on memory managers -------------------------------------===*/
+
+namespace {
+
+struct SimpleBindingMMFunctions {
+  uint8_t *(*AllocateCodeSection)(void *Opaque,
+                                  uintptr_t Size, unsigned Alignment,
+                                  unsigned SectionID);
+  uint8_t *(*AllocateDataSection)(void *Opaque,
+                                  uintptr_t Size, unsigned Alignment,
+                                  unsigned SectionID, LLVMBool IsReadOnly);
+  LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg);
+  void (*Destroy)(void *Opaque);
+};
+
+class SimpleBindingMemoryManager : public RTDyldMemoryManager {
+public:
+  SimpleBindingMemoryManager(const SimpleBindingMMFunctions& Functions,
+                             void *Opaque);
+  virtual ~SimpleBindingMemoryManager();
+  
+  virtual uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment,
+                                       unsigned SectionID);
+
+  virtual uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment,
+                                       unsigned SectionID,
+                                       bool isReadOnly);
+
+  virtual bool finalizeMemory(std::string *ErrMsg);
+  
+private:
+  SimpleBindingMMFunctions Functions;
+  void *Opaque;
+};
+
+SimpleBindingMemoryManager::SimpleBindingMemoryManager(
+  const SimpleBindingMMFunctions& Functions,
+  void *Opaque)
+  : Functions(Functions), Opaque(Opaque) {
+  assert(Functions.AllocateCodeSection &&
+         "No AllocateCodeSection function provided!");
+  assert(Functions.AllocateDataSection &&
+         "No AllocateDataSection function provided!");
+  assert(Functions.FinalizeMemory &&
+         "No FinalizeMemory function provided!");
+  assert(Functions.Destroy &&
+         "No Destroy function provided!");
+}
+
+SimpleBindingMemoryManager::~SimpleBindingMemoryManager() {
+  Functions.Destroy(Opaque);
+}
+
+uint8_t *SimpleBindingMemoryManager::allocateCodeSection(
+  uintptr_t Size, unsigned Alignment, unsigned SectionID) {
+  return Functions.AllocateCodeSection(Opaque, Size, Alignment, SectionID);
+}
+
+uint8_t *SimpleBindingMemoryManager::allocateDataSection(
+  uintptr_t Size, unsigned Alignment, unsigned SectionID, bool isReadOnly) {
+  return Functions.AllocateDataSection(Opaque, Size, Alignment, SectionID,
+                                       isReadOnly);
+}
+
+bool SimpleBindingMemoryManager::finalizeMemory(std::string *ErrMsg) {
+  char *errMsgCString = 0;
+  bool result = Functions.FinalizeMemory(Opaque, &errMsgCString);
+  assert((result || !errMsgCString) &&
+         "Did not expect an error message if FinalizeMemory succeeded");
+  if (errMsgCString) {
+    if (ErrMsg)
+      *ErrMsg = errMsgCString;
+    free(errMsgCString);
+  }
+  return result;
+}
+
+} // anonymous namespace
+
+LLVMMCJITMemoryManagerRef LLVMCreateSimpleMCJITMemoryManager(
+  void *Opaque,
+  uint8_t *(*AllocateCodeSection)(void *Opaque,
+                                  uintptr_t Size, unsigned Alignment,
+                                  unsigned SectionID),
+  uint8_t *(*AllocateDataSection)(void *Opaque,
+                                  uintptr_t Size, unsigned Alignment,
+                                  unsigned SectionID, LLVMBool IsReadOnly),
+  LLVMBool (*FinalizeMemory)(void *Opaque, char **ErrMsg),
+  void (*Destroy)(void *Opaque)) {
+  
+  if (!AllocateCodeSection || !AllocateDataSection || !FinalizeMemory ||
+      !Destroy)
+    return NULL;
+  
+  SimpleBindingMMFunctions functions;
+  functions.AllocateCodeSection = AllocateCodeSection;
+  functions.AllocateDataSection = AllocateDataSection;
+  functions.FinalizeMemory = FinalizeMemory;
+  functions.Destroy = Destroy;
+  return wrap(new SimpleBindingMemoryManager(functions, Opaque));
+}
+
+void LLVMDisposeMCJITMemoryManager(LLVMMCJITMemoryManagerRef MM) {
+  delete unwrap(MM);
+}
+