llvm/lib/Object/FaultMapParser.cpp

   1 //===----------------------- FaultMapParser.cpp ---------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 #include "llvm/Object/FaultMapParser.h"
  10 #include "llvm/Support/ErrorHandling.h"
  11 #include "llvm/Support/Format.h"
  12 #include "llvm/Support/raw_ostream.h"
  13
  14 using namespace llvm;
  15
  16 void printFaultType(FaultMapParser::FaultKind FT, raw_ostream &OS) {
  17   switch (FT) {
  18   default:
  19     llvm_unreachable("unhandled fault type!");
  20   case FaultMapParser::FaultingLoad:
  21     OS << "FaultingLoad";
  22     break;
  23   case FaultMapParser::FaultingLoadStore:
  24     OS << "FaultingLoadStore";
  25     break;
  26   case FaultMapParser::FaultingStore:
  27     OS << "FaultingStore";
  28     break;
  29   }
  30 }
  31
  32 raw_ostream &
  33 llvm::operator<<(raw_ostream &OS,
  34                  const FaultMapParser::FunctionFaultInfoAccessor &FFI) {
  35   OS << "Fault kind: ";
  36   printFaultType((FaultMapParser::FaultKind)FFI.getFaultKind(), OS);
  37   OS << ", faulting PC offset: " << FFI.getFaultingPCOffset()
  38      << ", handling PC offset: " << FFI.getHandlerPCOffset();
  39   return OS;
  40 }
  41
  42 raw_ostream &llvm::operator<<(raw_ostream &OS,
  43                               const FaultMapParser::FunctionInfoAccessor &FI) {
  44   OS << "FunctionAddress: " << format_hex(FI.getFunctionAddr(), 8)
  45      << ", NumFaultingPCs: " << FI.getNumFaultingPCs() << "\n";
  46   for (unsigned I = 0, E = FI.getNumFaultingPCs(); I != E; ++I)
  47     OS << FI.getFunctionFaultInfoAt(I) << "\n";
  48   return OS;
  49 }
  50
  51 raw_ostream &llvm::operator<<(raw_ostream &OS, const FaultMapParser &FMP) {
  52   OS << "Version: " << format_hex(FMP.getFaultMapVersion(), 2) << "\n";
  53   OS << "NumFunctions: " << FMP.getNumFunctions() << "\n";
  54
  55   if (FMP.getNumFunctions() == 0)
  56     return OS;
  57
  58   FaultMapParser::FunctionInfoAccessor FI;
  59
  60   for (unsigned I = 0, E = FMP.getNumFunctions(); I != E; ++I) {
  61     FI = (I == 0) ? FMP.getFirstFunctionInfo() : FI.getNextFunctionInfo();
  62     OS << FI;
  63   }
  64
  65   return OS;
  66 }