//===- SanitizerStats.h - Sanitizer statistics gathering -------*- C++ -*-===//
//
// 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
//
//===----------------------------------------------------------------------===//
//
// Declares functions and data structures for sanitizer statistics gathering.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_TRANSFORMS_UTILS_SANITIZERSTATS_H
#define LLVM_TRANSFORMS_UTILS_SANITIZERSTATS_H
#include "llvm/IR/IRBuilder.h"
namespace llvm {
// Number of bits in data that are used for the sanitizer kind. Needs to match
// __sanitizer::kKindBits in compiler-rt/lib/stats/stats.h
enum { kSanitizerStatKindBits = 3 };
enum SanitizerStatKind {
SanStat_CFI_VCall,
SanStat_CFI_NVCall,
SanStat_CFI_DerivedCast,
SanStat_CFI_UnrelatedCast,
SanStat_CFI_ICall,
};
struct SanitizerStatReport {
SanitizerStatReport(Module *M);
/// Generates code into B that increments a location-specific counter tagged
/// with the given sanitizer kind SK.
void create(IRBuilder<> &B, SanitizerStatKind SK);
/// Finalize module stats array and add global constructor to register it.
void finish();
private:
Module *M;
GlobalVariable *ModuleStatsGV;
ArrayType *StatTy;
StructType *EmptyModuleStatsTy;
std::vector<Constant *> Inits;
ArrayType *makeModuleStatsArrayTy();
StructType *makeModuleStatsTy();
};
}
#endif