Subzero: Add basic ELFObjectWriter (text section, symtab, strtab, headers)

src/assembler.cpp

Index: src/assembler.cpp
diff --git a/src/assembler.cpp b/src/assembler.cpp
index b0bd297f057db71e178e6307261781ab9750b0d3..a9516e869b05a0213e96557245d9ef270f513493 100644
--- a/src/assembler.cpp
+++ b/src/assembler.cpp
@@ -20,7 +20,6 @@
 
 #include "assembler.h"
 #include "IceGlobalContext.h"
-#include "IceMemoryRegion.h"
 #include "IceOperand.h"
 
 namespace Ice {
@@ -76,25 +75,6 @@ AssemblerBuffer::AssemblerBuffer(Assembler &assembler) : assembler_(assembler) {
 
 AssemblerBuffer::~AssemblerBuffer() {}
 
-void AssemblerBuffer::ProcessFixups(const MemoryRegion &region) {
-  for (SizeT I = 0; I < fixups_.size(); ++I) {
-    AssemblerFixup *fixup = fixups_[I];
-    fixup->Process(region, fixup->position());
-  }
-}
-
-void AssemblerBuffer::FinalizeInstructions(const MemoryRegion &instructions) {
-  // Copy the instructions from the buffer.
-  MemoryRegion from(reinterpret_cast<void *>(contents()), Size());
-  instructions.CopyFrom(0, from);
-
-  // Process fixups in the instructions.
-  ProcessFixups(instructions);
-#ifndef NDEBUG
-  fixups_processed_ = true;
-#endif // !NDEBUG
-}
-
 void AssemblerBuffer::ExtendCapacity() {
   intptr_t old_size = Size();
   intptr_t old_capacity = Capacity();
@@ -123,6 +103,11 @@ void AssemblerBuffer::ExtendCapacity() {
   assert(Size() == old_size);
 }
 
+llvm::StringRef Assembler::getBufferView() const {
+  return llvm::StringRef(reinterpret_cast<const char *>(buffer_.contents()),
+                         buffer_.Size());
+}
+
 void Assembler::emitIASBytes(GlobalContext *Ctx) const {
   Ostream &Str = Ctx->getStrEmit();
   intptr_t EndPosition = buffer_.Size();