[FaultsMaps][llvm-objdump] Move FaultMapParser to Object/. Remove CodeGen dependency from llvm-objdump

FaultsMapParser lived in CodeGen and was forcing llvm-objdump to
link CodeGen and everything CodeGen depends on.

This was previously attempted in r240364 to fix a link failure.
The CodeGen dependency was independently added to fix the same
link failure, and that ended up being kept.

Removing the dependency seems like the correct layering for
llvm-objdump.

Reviewed By: MaskRay, jhenderson

Differential Revision: https://reviews.llvm.org/D95414

1 files changed, 66 insertions, 0 deletions

diff --git a/llvm/lib/Object/FaultMapParser.cpp b/llvm/lib/Object/FaultMapParser.cpp
new file mode 100644
index 0000000..9e83bc1
--- /dev/null
+++ b/llvm/lib/Object/FaultMapParser.cpp
@@ -0,0 +1,66 @@
+//===----------------------- FaultMapParser.cpp ---------------------------===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Object/FaultMapParser.h"
+#include "llvm/Support/ErrorHandling.h"
+#include "llvm/Support/Format.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+void printFaultType(FaultMapParser::FaultKind FT, raw_ostream &OS) {
+  switch (FT) {
+  default:
+    llvm_unreachable("unhandled fault type!");
+  case FaultMapParser::FaultingLoad:
+    OS << "FaultingLoad";
+    break;
+  case FaultMapParser::FaultingLoadStore:
+    OS << "FaultingLoadStore";
+    break;
+  case FaultMapParser::FaultingStore:
+    OS << "FaultingStore";
+    break;
+  }
+}
+
+raw_ostream &
+llvm::operator<<(raw_ostream &OS,
+                 const FaultMapParser::FunctionFaultInfoAccessor &FFI) {
+  OS << "Fault kind: ";
+  printFaultType((FaultMapParser::FaultKind)FFI.getFaultKind(), OS);
+  OS << ", 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;
+}