libsanitizer/sanitizer_common/sanitizer_suppressions.h

   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 = 32;
  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