1  //===-- sanitizer_suppressions.h --------------------------------*- C++ -*-===//
       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  // Suppression parsing/matching code.
      10  //
      11  //===----------------------------------------------------------------------===//
      12  #ifndef SANITIZER_SUPPRESSIONS_H
      13  #define SANITIZER_SUPPRESSIONS_H
      14  
      15  #include "sanitizer_common.h"
      16  #include "sanitizer_atomic.h"
      17  #include "sanitizer_internal_defs.h"
      18  
      19  namespace __sanitizer {
      20  
      21  struct Suppression {
      22    Suppression() { internal_memset(this, 0, sizeof(*this)); }
      23    const char *type;
      24    char *templ;
      25    atomic_uint32_t hit_count;
      26    uptr weight;
      27  };
      28  
      29  class SuppressionContext {
      30   public:
      31    // Create new SuppressionContext capable of parsing given suppression types.
      32    SuppressionContext(const char *supprression_types[],
      33                       int suppression_types_num);
      34  
      35    void ParseFromFile(const char *filename);
      36    void Parse(const char *str);
      37  
      38    bool Match(const char *str, const char *type, Suppression **s);
      39    uptr SuppressionCount() const;
      40    bool HasSuppressionType(const char *type) const;
      41    const Suppression *SuppressionAt(uptr i) const;
      42    void GetMatched(InternalMmapVector<Suppression *> *matched);
      43  
      44   private:
      45    static const int kMaxSuppressionTypes = 64;
      46    const char **const suppression_types_;
      47    const int suppression_types_num_;
      48  
      49    InternalMmapVector<Suppression> suppressions_;
      50    bool has_suppression_type_[kMaxSuppressionTypes];
      51    bool can_parse_;
      52  };
      53  
      54  }  // namespace __sanitizer
      55  
      56  #endif  // SANITIZER_SUPPRESSIONS_H