[FaultMaps] Move FaultMapParser to Object/

Summary:
That way llvm-objdump can rely on it without adding an extra dependency
on CodeGen.

This change duplicates the FaultKind enum and the code that serializes
it to a string.  I could not figure out a way to get around this without
adding a new dependency to Object

Reviewers: rafael, ab

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D10619

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@240364 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Object/CMakeLists.txt

@@ -8,6 +8,7 @@ add_llvm_library(LLVMObject
   ELFObjectFile.cpp
   ELFYAML.cpp
   Error.cpp
+  FaultMapParser.cpp
   IRObjectFile.cpp
   MachOObjectFile.cpp
   MachOUniversal.cpp

lib/Object/FaultMapParser.cpp

@@ -0,0 +1,61 @@
+//===----------------------- FaultMapParser.cpp ---------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/FaultMapParser.h"
+
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Format.h"
+
+using namespace llvm;
+
+const char *faultKindToString(FaultMapParser::FaultKind FT) {
+  switch (FT) {
+  default:
+    llvm_unreachable("unhandled fault type!");
+
+  case FaultMapParser::FaultingLoad:
+    return "FaultingLoad";
+  }
+}
+
+raw_ostream &llvm::
+operator<<(raw_ostream &OS,
+           const FaultMapParser::FunctionFaultInfoAccessor &FFI) {
+  OS << "Fault kind: "
+     << faultKindToString((FaultMapParser::FaultKind)FFI.getFaultKind())
+     << ", faulting PC offset: " << FFI.getFaultingPCOffset()
+     << ", handling PC offset: " << FFI.getHandlerPCOffset();
+  return OS;
+}
+
+raw_ostream &llvm::
+operator<<(raw_ostream &OS, const FaultMapParser::FunctionInfoAccessor &FI) {
+  OS << "FunctionAddress: " << format_hex(FI.getFunctionAddr(), 8)
+     << ", NumFaultingPCs: " << FI.getNumFaultingPCs() << "\n";
+  for (unsigned i = 0, e = FI.getNumFaultingPCs(); i != e; ++i)
+    OS << FI.getFunctionFaultInfoAt(i) << "\n";
+  return OS;
+}
+
+raw_ostream &llvm::operator<<(raw_ostream &OS, const FaultMapParser &FMP) {
+  OS << "Version: " << format_hex(FMP.getFaultMapVersion(), 2) << "\n";
+  OS << "NumFunctions: " << FMP.getNumFunctions() << "\n";
+
+  if (FMP.getNumFunctions() == 0)
+    return OS;
+
+  FaultMapParser::FunctionInfoAccessor FI;
+
+  for (unsigned i = 0, e = FMP.getNumFunctions(); i != e; ++i) {
+    FI = (i == 0) ? FMP.getFirstFunctionInfo() : FI.getNextFunctionInfo();
+    OS << FI;
+  }
+
+  return OS;
+}