1 files changed, 141 insertions, 0 deletions
diff --git a/lib/CodeGen/ObjectCodeEmitter.cpp b/lib/CodeGen/ObjectCodeEmitter.cpp
new file mode 100644
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+++ b/lib/CodeGen/ObjectCodeEmitter.cpp
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+//===-- llvm/CodeGen/ObjectCodeEmitter.cpp -------------------- -*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/CodeGen/BinaryObject.h"
+#include "llvm/CodeGen/MachineBasicBlock.h"
+#include "llvm/CodeGen/MachineRelocation.h"
+#include "llvm/CodeGen/ObjectCodeEmitter.h"
+
+//===----------------------------------------------------------------------===//
+//                       ObjectCodeEmitter Implementation
+//===----------------------------------------------------------------------===//
+
+namespace llvm {
+
+ObjectCodeEmitter::ObjectCodeEmitter() : BO(0) {}
+ObjectCodeEmitter::ObjectCodeEmitter(BinaryObject *bo) : BO(bo) {}
+ObjectCodeEmitter::~ObjectCodeEmitter() {}
+
+/// setBinaryObject - set the BinaryObject we are writting to
+void ObjectCodeEmitter::setBinaryObject(BinaryObject *bo) { BO = bo; }
+
+/// emitByte - This callback is invoked when a byte needs to be
+/// written to the data stream, without buffer overflow testing.
+void ObjectCodeEmitter::emitByte(uint8_t B) {
+  BO->emitByte(B);
+}
+
+/// emitWordLE - This callback is invoked when a 32-bit word needs to be
+/// written to the data stream in little-endian format.
+void ObjectCodeEmitter::emitWordLE(uint32_t W) {
+  BO->emitWordLE(W);
+}
+
+/// emitWordBE - This callback is invoked when a 32-bit word needs to be
+/// written to the data stream in big-endian format.
+void ObjectCodeEmitter::emitWordBE(uint32_t W) {
+  BO->emitWordBE(W);
+}
+
+/// emitDWordLE - This callback is invoked when a 64-bit word needs to be
+/// written to the data stream in little-endian format.
+void ObjectCodeEmitter::emitDWordLE(uint64_t W) {
+  BO->emitDWordLE(W);
+}
+
+/// emitDWordBE - This callback is invoked when a 64-bit word needs to be
+/// written to the data stream in big-endian format.
+void ObjectCodeEmitter::emitDWordBE(uint64_t W) {
+  BO->emitDWordBE(W);
+}
+
+/// emitAlignment - Align 'BO' to the necessary alignment boundary.
+void ObjectCodeEmitter::emitAlignment(unsigned Alignment /* 0 */,
+                                      uint8_t fill /* 0 */) {
+  BO->emitAlignment(Alignment, fill);
+}
+
+/// emitULEB128Bytes - This callback is invoked when a ULEB128 needs to be
+/// written to the data stream.
+void ObjectCodeEmitter::emitULEB128Bytes(uint64_t Value) {
+  BO->emitULEB128Bytes(Value);
+}
+
+/// emitSLEB128Bytes - This callback is invoked when a SLEB128 needs to be
+/// written to the data stream.
+void ObjectCodeEmitter::emitSLEB128Bytes(uint64_t Value) {
+  BO->emitSLEB128Bytes(Value);
+}
+
+/// emitString - This callback is invoked when a String needs to be
+/// written to the data stream.
+void ObjectCodeEmitter::emitString(const std::string &String) {
+  BO->emitString(String);
+}
+
+/// getCurrentPCValue - This returns the address that the next emitted byte
+/// will be output to.
+uintptr_t ObjectCodeEmitter::getCurrentPCValue() const {
+  return BO->getCurrentPCOffset();
+}
+
+/// getCurrentPCOffset - Return the offset from the start of the emitted
+/// buffer that we are currently writing to.
+uintptr_t ObjectCodeEmitter::getCurrentPCOffset() const {
+  return BO->getCurrentPCOffset();
+}
+
+/// addRelocation - Whenever a relocatable address is needed, it should be
+/// noted with this interface.
+void ObjectCodeEmitter::addRelocation(const MachineRelocation& relocation) {
+  BO->addRelocation(relocation);
+}
+
+/// StartMachineBasicBlock - This should be called by the target when a new
+/// basic block is about to be emitted.  This way the MCE knows where the
+/// start of the block is, and can implement getMachineBasicBlockAddress.
+void ObjectCodeEmitter::StartMachineBasicBlock(MachineBasicBlock *MBB) {
+  if (MBBLocations.size() <= (unsigned)MBB->getNumber())
+    MBBLocations.resize((MBB->getNumber()+1)*2);
+  MBBLocations[MBB->getNumber()] = getCurrentPCOffset();
+}
+
+/// getMachineBasicBlockAddress - Return the address of the specified
+/// MachineBasicBlock, only usable after the label for the MBB has been
+/// emitted.
+uintptr_t
+ObjectCodeEmitter::getMachineBasicBlockAddress(MachineBasicBlock *MBB) const {
+  assert(MBBLocations.size() > (unsigned)MBB->getNumber() &&
+         MBBLocations[MBB->getNumber()] && "MBB not emitted!");
+  return MBBLocations[MBB->getNumber()];
+}
+
+/// getJumpTableEntryAddress - Return the address of the jump table with index
+/// 'Index' in the function that last called initJumpTableInfo.
+uintptr_t ObjectCodeEmitter::getJumpTableEntryAddress(unsigned Index) const {
+  assert(JTLocations.size() > Index && "JT not emitted!");
+  return JTLocations[Index];
+}
+
+/// getConstantPoolEntryAddress - Return the address of the 'Index' entry in
+/// the constant pool that was last emitted with the emitConstantPool method.
+uintptr_t ObjectCodeEmitter::getConstantPoolEntryAddress(unsigned Index) const {
+  assert(CPLocations.size() > Index && "CP not emitted!");
+  return CPLocations[Index];
+}
+
+/// getConstantPoolEntrySection - Return the section of the 'Index' entry in
+/// the constant pool that was last emitted with the emitConstantPool method.
+uintptr_t ObjectCodeEmitter::getConstantPoolEntrySection(unsigned Index) const {
+  assert(CPSections.size() > Index && "CP not emitted!");
+  return CPSections[Index];
+}
+
+} // end namespace llvm
+