Imported Upstream version 5.18.0.167

Former-commit-id: 289509151e0fee68a1b591a20c9f109c3c789d3a

external/llvm/tools/sanstats/sanstats.cpp

@@ -1,141 +0,0 @@
-//===- sanstats.cpp - Sanitizer statistics dumper -------------------------===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This tool dumps statistics information from files in the format produced
-// by clang's -fsanitize-stats feature.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/DebugInfo/Symbolize/Symbolize.h"
-#include "llvm/Support/CommandLine.h"
-#include "llvm/Support/ErrorOr.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Transforms/Utils/SanitizerStats.h"
-#include <stdint.h>
-
-using namespace llvm;
-
-static cl::opt<std::string> ClInputFile(cl::Positional, cl::Required,
-                                        cl::desc("<filename>"));
-
-static cl::opt<bool> ClDemangle("demangle", cl::init(false),
-                                cl::desc("Print demangled function name."));
-
-inline uint64_t KindFromData(uint64_t Data, char SizeofPtr) {
-  return Data >> (SizeofPtr * 8 - kSanitizerStatKindBits);
-}
-
-inline uint64_t CountFromData(uint64_t Data, char SizeofPtr) {
-  return Data & ((1ull << (SizeofPtr * 8 - kSanitizerStatKindBits)) - 1);
-}
-
-uint64_t ReadLE(char Size, const char *Begin, const char *End) {
-  uint64_t Result = 0;
-  char Pos = 0;
-  while (Begin < End && Pos != Size) {
-    Result |= uint64_t(uint8_t(*Begin)) << (Pos * 8);
-    ++Begin;
-    ++Pos;
-  }
-  return Result;
-}
-
-const char *ReadModule(char SizeofPtr, const char *Begin, const char *End) {
-  const char *FilenameBegin = Begin;
-  while (Begin != End && *Begin)
-    ++Begin;
-  if (Begin == End)
-    return nullptr;
-  StringRef Filename(FilenameBegin, Begin - FilenameBegin);
-
-  ++Begin;
-  if (Begin == End)
-    return nullptr;
-
-  symbolize::LLVMSymbolizer::Options SymbolizerOptions;
-  SymbolizerOptions.Demangle = ClDemangle;
-  SymbolizerOptions.UseSymbolTable = true;
-  symbolize::LLVMSymbolizer Symbolizer(SymbolizerOptions);
-
-  while (1) {
-    uint64_t Addr = ReadLE(SizeofPtr, Begin, End);
-    Begin += SizeofPtr;
-    uint64_t Data = ReadLE(SizeofPtr, Begin, End);
-    Begin += SizeofPtr;
-
-    if (Begin > End)
-      return nullptr;
-    if (Addr == 0 && Data == 0)
-      return Begin;
-    if (Begin == End)
-      return nullptr;
-
-    // As the instrumentation tracks the return address and not
-    // the address of the call to `__sanitizer_stat_report` we
-    // remove one from the address to get the correct DI.
-    if (Expected<DILineInfo> LineInfo =
-            Symbolizer.symbolizeCode(Filename, Addr - 1)) {
-      llvm::outs() << LineInfo->FileName << ':' << LineInfo->Line << ' '
-                   << LineInfo->FunctionName << ' ';
-    } else {
-      logAllUnhandledErrors(LineInfo.takeError(), llvm::outs(), "<error> ");
-    }
-
-    switch (KindFromData(Data, SizeofPtr)) {
-    case SanStat_CFI_VCall:
-      llvm::outs() << "cfi-vcall";
-      break;
-    case SanStat_CFI_NVCall:
-      llvm::outs() << "cfi-nvcall";
-      break;
-    case SanStat_CFI_DerivedCast:
-      llvm::outs() << "cfi-derived-cast";
-      break;
-    case SanStat_CFI_UnrelatedCast:
-      llvm::outs() << "cfi-unrelated-cast";
-      break;
-    case SanStat_CFI_ICall:
-      llvm::outs() << "cfi-icall";
-      break;
-    default:
-      llvm::outs() << "<unknown>";
-      break;
-    }
-
-    llvm::outs() << " " << CountFromData(Data, SizeofPtr) << '\n';
-  }
-}
-
-int main(int argc, char **argv) {
-  cl::ParseCommandLineOptions(argc, argv,
-                              "Sanitizer Statistics Processing Tool");
-
-  ErrorOr<std::unique_ptr<MemoryBuffer>> MBOrErr =
-      MemoryBuffer::getFile(ClInputFile, -1, false);
-  if (!MBOrErr) {
-    errs() << argv[0] << ": " << ClInputFile << ": "
-           << MBOrErr.getError().message() << '\n';
-    return 1;
-  }
-  std::unique_ptr<MemoryBuffer> MB = std::move(MBOrErr.get());
-  const char *Begin = MB->getBufferStart(), *End = MB->getBufferEnd();
-  if (Begin == End) {
-    errs() << argv[0] << ": " << ClInputFile << ": short read\n";
-    return 1;
-  }
-  char SizeofPtr = *Begin++;
-  while (Begin != End) {
-    Begin = ReadModule(SizeofPtr, Begin, End);
-    if (Begin == nullptr) {
-      errs() << argv[0] << ": " << ClInputFile << ": short read\n";
-      return 1;
-    }
-    assert(Begin <= End);
-  }
-}