1 files changed, 88 insertions, 0 deletions
diff --git a/llvm/tools/llvm-objdump/XCOFFDump.cpp b/llvm/tools/llvm-objdump/XCOFFDump.cpp
new file mode 100644
index 0000000000000..df37abbd38813
--- /dev/null
+++ b/llvm/tools/llvm-objdump/XCOFFDump.cpp
@@ -0,0 +1,88 @@
+//===-- XCOFFDump.cpp - XCOFF-specific dumper -----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+///
+/// \file
+/// This file implements the XCOFF-specific dumper for llvm-objdump.
+///
+//===----------------------------------------------------------------------===//
+
+#include "XCOFFDump.h"
+
+#include "llvm-objdump.h"
+#include "llvm/Demangle/Demangle.h"
+
+using namespace llvm;
+using namespace llvm::object;
+
+Error objdump::getXCOFFRelocationValueString(const XCOFFObjectFile *Obj,
+                                             const RelocationRef &Rel,
+                                             SmallVectorImpl<char> &Result) {
+  symbol_iterator SymI = Rel.getSymbol();
+  if (SymI == Obj->symbol_end())
+    return make_error<GenericBinaryError>(
+        "invalid symbol reference in relocation entry",
+        object_error::parse_failed);
+
+  Expected<StringRef> SymNameOrErr = SymI->getName();
+  if (!SymNameOrErr)
+    return SymNameOrErr.takeError();
+
+  std::string SymName = (*SymNameOrErr).str();
+  if (Demangle)
+    SymName = demangle(SymName);
+
+  if (SymbolDescription)
+    SymName = getXCOFFSymbolDescription(createSymbolInfo(Obj, *SymI), SymName);
+
+  Result.append(SymName.begin(), SymName.end());
+  return Error::success();
+}
+
+Optional<XCOFF::StorageMappingClass>
+objdump::getXCOFFSymbolCsectSMC(const XCOFFObjectFile *Obj,
+                                const SymbolRef &Sym) {
+  XCOFFSymbolRef SymRef(Sym.getRawDataRefImpl(), Obj);
+
+  if (SymRef.hasCsectAuxEnt())
+    return SymRef.getXCOFFCsectAuxEnt32()->StorageMappingClass;
+
+  return None;
+}
+
+bool objdump::isLabel(const XCOFFObjectFile *Obj, const SymbolRef &Sym) {
+
+  XCOFFSymbolRef SymRef(Sym.getRawDataRefImpl(), Obj);
+
+  if (SymRef.hasCsectAuxEnt())
+    return SymRef.getXCOFFCsectAuxEnt32()->isLabel();
+
+  return false;
+}
+
+std::string objdump::getXCOFFSymbolDescription(const SymbolInfoTy &SymbolInfo,
+                                               StringRef SymbolName) {
+  assert(SymbolInfo.isXCOFF() && "Must be a XCOFFSymInfo.");
+
+  std::string Result;
+  // Dummy symbols have no symbol index.
+  if (SymbolInfo.XCOFFSymInfo.Index)
+    Result = ("(idx: " + Twine(SymbolInfo.XCOFFSymInfo.Index.getValue()) +
+              ") " + SymbolName)
+                 .str();
+  else
+    Result.append(SymbolName.begin(), SymbolName.end());
+
+  if (SymbolInfo.XCOFFSymInfo.StorageMappingClass &&
+      !SymbolInfo.XCOFFSymInfo.IsLabel) {
+    const XCOFF::StorageMappingClass Smc =
+        SymbolInfo.XCOFFSymInfo.StorageMappingClass.getValue();
+    Result.append(("[" + XCOFF::getMappingClassString(Smc) + "]").str());
+  }
+
+  return Result;
+}