From b5500b9ca0102f1ccaf32f0e77e96d0739aded9b Mon Sep 17 00:00:00 2001
From: pascal <pascal@openbsd.org>
Date: Sat, 3 Sep 2016 22:46:54 +0000
Subject: Use the space freed up by sparc and zaurus to import LLVM.

ok hackroom@
---
 gnu/llvm/lib/Object/ObjectFile.cpp | 116 +++++++++++++++++++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 gnu/llvm/lib/Object/ObjectFile.cpp

(limited to 'gnu/llvm/lib/Object/ObjectFile.cpp')

diff --git a/gnu/llvm/lib/Object/ObjectFile.cpp b/gnu/llvm/lib/Object/ObjectFile.cpp
new file mode 100644
index 00000000000..d12dc411361
--- /dev/null
+++ b/gnu/llvm/lib/Object/ObjectFile.cpp
@@ -0,0 +1,116 @@
+//===- ObjectFile.cpp - File format independent object file -----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines a file format independent ObjectFile class.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/COFF.h"
+#include "llvm/Object/MachO.h"
+#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
+#include "llvm/Support/raw_ostream.h"
+#include <system_error>
+
+using namespace llvm;
+using namespace object;
+
+void ObjectFile::anchor() { }
+
+ObjectFile::ObjectFile(unsigned int Type, MemoryBufferRef Source)
+    : SymbolicFile(Type, Source) {}
+
+bool SectionRef::containsSymbol(SymbolRef S) const {
+  ErrorOr<section_iterator> SymSec = S.getSection();
+  if (!SymSec)
+    return false;
+  return *this == **SymSec;
+}
+
+uint64_t ObjectFile::getSymbolValue(DataRefImpl Ref) const {
+  uint32_t Flags = getSymbolFlags(Ref);
+  if (Flags & SymbolRef::SF_Undefined)
+    return 0;
+  if (Flags & SymbolRef::SF_Common)
+    return getCommonSymbolSize(Ref);
+  return getSymbolValueImpl(Ref);
+}
+
+std::error_code ObjectFile::printSymbolName(raw_ostream &OS,
+                                            DataRefImpl Symb) const {
+  ErrorOr<StringRef> Name = getSymbolName(Symb);
+  if (std::error_code EC = Name.getError())
+    return EC;
+  OS << *Name;
+  return std::error_code();
+}
+
+uint32_t ObjectFile::getSymbolAlignment(DataRefImpl DRI) const { return 0; }
+
+section_iterator ObjectFile::getRelocatedSection(DataRefImpl Sec) const {
+  return section_iterator(SectionRef(Sec, this));
+}
+
+ErrorOr<std::unique_ptr<ObjectFile>>
+ObjectFile::createObjectFile(MemoryBufferRef Object, sys::fs::file_magic Type) {
+  StringRef Data = Object.getBuffer();
+  if (Type == sys::fs::file_magic::unknown)
+    Type = sys::fs::identify_magic(Data);
+
+  switch (Type) {
+  case sys::fs::file_magic::unknown:
+  case sys::fs::file_magic::bitcode:
+  case sys::fs::file_magic::archive:
+  case sys::fs::file_magic::macho_universal_binary:
+  case sys::fs::file_magic::windows_resource:
+    return object_error::invalid_file_type;
+  case sys::fs::file_magic::elf:
+  case sys::fs::file_magic::elf_relocatable:
+  case sys::fs::file_magic::elf_executable:
+  case sys::fs::file_magic::elf_shared_object:
+  case sys::fs::file_magic::elf_core:
+    return createELFObjectFile(Object);
+  case sys::fs::file_magic::macho_object:
+  case sys::fs::file_magic::macho_executable:
+  case sys::fs::file_magic::macho_fixed_virtual_memory_shared_lib:
+  case sys::fs::file_magic::macho_core:
+  case sys::fs::file_magic::macho_preload_executable:
+  case sys::fs::file_magic::macho_dynamically_linked_shared_lib:
+  case sys::fs::file_magic::macho_dynamic_linker:
+  case sys::fs::file_magic::macho_bundle:
+  case sys::fs::file_magic::macho_dynamically_linked_shared_lib_stub:
+  case sys::fs::file_magic::macho_dsym_companion:
+  case sys::fs::file_magic::macho_kext_bundle:
+    return createMachOObjectFile(Object);
+  case sys::fs::file_magic::coff_object:
+  case sys::fs::file_magic::coff_import_library:
+  case sys::fs::file_magic::pecoff_executable:
+    return createCOFFObjectFile(Object);
+  }
+  llvm_unreachable("Unexpected Object File Type");
+}
+
+ErrorOr<OwningBinary<ObjectFile>>
+ObjectFile::createObjectFile(StringRef ObjectPath) {
+  ErrorOr<std::unique_ptr<MemoryBuffer>> FileOrErr =
+      MemoryBuffer::getFile(ObjectPath);
+  if (std::error_code EC = FileOrErr.getError())
+    return EC;
+  std::unique_ptr<MemoryBuffer> Buffer = std::move(FileOrErr.get());
+
+  ErrorOr<std::unique_ptr<ObjectFile>> ObjOrErr =
+      createObjectFile(Buffer->getMemBufferRef());
+  if (std::error_code EC = ObjOrErr.getError())
+    return EC;
+  std::unique_ptr<ObjectFile> Obj = std::move(ObjOrErr.get());
+
+  return OwningBinary<ObjectFile>(std::move(Obj), std::move(Buffer));
+}
-- 
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