1 files changed, 0 insertions, 213 deletions
diff --git a/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp b/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp
deleted file mode 100644
index dfa3a20..0000000
--- a/lib/ExecutionEngine/RuntimeDyld/GDBRegistrar.cpp
+++ /dev/null
@@ -1,213 +0,0 @@
-//===-- GDBRegistrar.cpp - Registers objects with GDB ---------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-
-#include "JITRegistrar.h"
-#include "llvm/ADT/DenseMap.h"
-#include "llvm/Support/Compiler.h"
-#include "llvm/Support/ErrorHandling.h"
-#include "llvm/Support/Mutex.h"
-#include "llvm/Support/MutexGuard.h"
-#include "llvm/Support/ManagedStatic.h"
-
-using namespace llvm;
-
-// This must be kept in sync with gdb/gdb/jit.h .
-extern "C" {
-
-  typedef enum {
-    JIT_NOACTION = 0,
-    JIT_REGISTER_FN,
-    JIT_UNREGISTER_FN
-  } jit_actions_t;
-
-  struct jit_code_entry {
-    struct jit_code_entry *next_entry;
-    struct jit_code_entry *prev_entry;
-    const char *symfile_addr;
-    uint64_t symfile_size;
-  };
-
-  struct jit_descriptor {
-    uint32_t version;
-    // This should be jit_actions_t, but we want to be specific about the
-    // bit-width.
-    uint32_t action_flag;
-    struct jit_code_entry *relevant_entry;
-    struct jit_code_entry *first_entry;
-  };
-
-  // We put information about the JITed function in this global, which the
-  // debugger reads.  Make sure to specify the version statically, because the
-  // debugger checks the version before we can set it during runtime.
-  struct jit_descriptor __jit_debug_descriptor = { 1, 0, nullptr, nullptr };
-
-  // Debuggers puts a breakpoint in this function.
-  LLVM_ATTRIBUTE_NOINLINE void __jit_debug_register_code() {
-    // The noinline and the asm prevent calls to this function from being
-    // optimized out.
-#if !defined(_MSC_VER)
-    asm volatile("":::"memory");
-#endif
-  }
-
-}
-
-namespace {
-
-// Buffer for an in-memory object file in executable memory
-typedef llvm::DenseMap< const char*,
-                        std::pair<std::size_t, jit_code_entry*> >
-  RegisteredObjectBufferMap;
-
-/// Global access point for the JIT debugging interface designed for use with a
-/// singleton toolbox. Handles thread-safe registration and deregistration of
-/// object files that are in executable memory managed by the client of this
-/// class.
-class GDBJITRegistrar : public JITRegistrar {
-  /// A map of in-memory object files that have been registered with the
-  /// JIT interface.
-  RegisteredObjectBufferMap ObjectBufferMap;
-
-public:
-  /// Instantiates the JIT service.
-  GDBJITRegistrar() : ObjectBufferMap() {}
-
-  /// Unregisters each object that was previously registered and releases all
-  /// internal resources.
-  virtual ~GDBJITRegistrar();
-
-  /// Creates an entry in the JIT registry for the buffer @p Object,
-  /// which must contain an object file in executable memory with any
-  /// debug information for the debugger.
-  void registerObject(const ObjectBuffer &Object) override;
-
-  /// Removes the internal registration of @p Object, and
-  /// frees associated resources.
-  /// Returns true if @p Object was found in ObjectBufferMap.
-  bool deregisterObject(const ObjectBuffer &Object) override;
-
-private:
-  /// Deregister the debug info for the given object file from the debugger
-  /// and delete any temporary copies.  This private method does not remove
-  /// the function from Map so that it can be called while iterating over Map.
-  void deregisterObjectInternal(RegisteredObjectBufferMap::iterator I);
-};
-
-/// Lock used to serialize all jit registration events, since they
-/// modify global variables.
-ManagedStatic<sys::Mutex> JITDebugLock;
-
-/// Do the registration.
-void NotifyDebugger(jit_code_entry* JITCodeEntry) {
-  __jit_debug_descriptor.action_flag = JIT_REGISTER_FN;
-
-  // Insert this entry at the head of the list.
-  JITCodeEntry->prev_entry = nullptr;
-  jit_code_entry* NextEntry = __jit_debug_descriptor.first_entry;
-  JITCodeEntry->next_entry = NextEntry;
-  if (NextEntry) {
-    NextEntry->prev_entry = JITCodeEntry;
-  }
-  __jit_debug_descriptor.first_entry = JITCodeEntry;
-  __jit_debug_descriptor.relevant_entry = JITCodeEntry;
-  __jit_debug_register_code();
-}
-
-GDBJITRegistrar::~GDBJITRegistrar() {
-  // Free all registered object files.
-  llvm::MutexGuard locked(*JITDebugLock);
-  for (RegisteredObjectBufferMap::iterator I = ObjectBufferMap.begin(), E = ObjectBufferMap.end();
-       I != E; ++I) {
-    // Call the private method that doesn't update the map so our iterator
-    // doesn't break.
-    deregisterObjectInternal(I);
-  }
-  ObjectBufferMap.clear();
-}
-
-void GDBJITRegistrar::registerObject(const ObjectBuffer &Object) {
-
-  const char *Buffer = Object.getBufferStart();
-  size_t      Size = Object.getBufferSize();
-
-  assert(Buffer && "Attempt to register a null object with a debugger.");
-  llvm::MutexGuard locked(*JITDebugLock);
-  assert(ObjectBufferMap.find(Buffer) == ObjectBufferMap.end() &&
-         "Second attempt to perform debug registration.");
-  jit_code_entry* JITCodeEntry = new jit_code_entry();
-
-  if (!JITCodeEntry) {
-    llvm::report_fatal_error(
-      "Allocation failed when registering a JIT entry!\n");
-  } else {
-    JITCodeEntry->symfile_addr = Buffer;
-    JITCodeEntry->symfile_size = Size;
-
-    ObjectBufferMap[Buffer] = std::make_pair(Size, JITCodeEntry);
-    NotifyDebugger(JITCodeEntry);
-  }
-}
-
-bool GDBJITRegistrar::deregisterObject(const ObjectBuffer& Object) {
-  const char *Buffer = Object.getBufferStart();
-  llvm::MutexGuard locked(*JITDebugLock);
-  RegisteredObjectBufferMap::iterator I = ObjectBufferMap.find(Buffer);
-
-  if (I != ObjectBufferMap.end()) {
-    deregisterObjectInternal(I);
-    ObjectBufferMap.erase(I);
-    return true;
-  }
-  return false;
-}
-
-void GDBJITRegistrar::deregisterObjectInternal(
-    RegisteredObjectBufferMap::iterator I) {
-
-  jit_code_entry*& JITCodeEntry = I->second.second;
-
-  // Do the unregistration.
-  {
-    __jit_debug_descriptor.action_flag = JIT_UNREGISTER_FN;
-
-    // Remove the jit_code_entry from the linked list.
-    jit_code_entry* PrevEntry = JITCodeEntry->prev_entry;
-    jit_code_entry* NextEntry = JITCodeEntry->next_entry;
-
-    if (NextEntry) {
-      NextEntry->prev_entry = PrevEntry;
-    }
-    if (PrevEntry) {
-      PrevEntry->next_entry = NextEntry;
-    }
-    else {
-      assert(__jit_debug_descriptor.first_entry == JITCodeEntry);
-      __jit_debug_descriptor.first_entry = NextEntry;
-    }
-
-    // Tell the debugger which entry we removed, and unregister the code.
-    __jit_debug_descriptor.relevant_entry = JITCodeEntry;
-    __jit_debug_register_code();
-  }
-
-  delete JITCodeEntry;
-  JITCodeEntry = nullptr;
-}
-
-llvm::ManagedStatic<GDBJITRegistrar> TheRegistrar;
-
-} // end namespace
-
-namespace llvm {
-
-JITRegistrar& JITRegistrar::getGDBRegistrar() {
-  return *TheRegistrar;
-}
-
-} // namespace llvm