libsanitizer/sanitizer_common/sanitizer_suppressions.h

   1 //===-- sanitizer_suppressions.h --------------------------------*- C++ -*-===//
   2 //
   3 // This file is distributed under the University of Illinois Open Source
   4 // License. See LICENSE.TXT for details.
   5 //
   6 //===----------------------------------------------------------------------===//
   7 //
   8 // Suppression parsing/matching code shared between TSan and LSan.
   9 //
  10 //===----------------------------------------------------------------------===//
  11 #ifndef SANITIZER_SUPPRESSIONS_H
  12 #define SANITIZER_SUPPRESSIONS_H
  13
  14 #include "sanitizer_common.h"
  15 #include "sanitizer_internal_defs.h"
  16
  17 namespace __sanitizer {
  18
  19 enum SuppressionType {
  20   SuppressionNone,
  21   SuppressionRace,
  22   SuppressionMutex,
  23   SuppressionThread,
  24   SuppressionSignal,
  25   SuppressionLeak,
  26   SuppressionLib,
  27   SuppressionDeadlock,
  28   SuppressionVptrCheck,
  29   SuppressionTypeCount
  30 };
  31
  32 struct Suppression {
  33   SuppressionType type;
  34   char *templ;
  35   unsigned hit_count;
  36   uptr weight;
  37 };
  38
  39 class SuppressionContext {
  40  public:
  41   void Parse(const char *str);
  42   bool Match(const char* str, SuppressionType type, Suppression **s);
  43   uptr SuppressionCount() const;
  44   const Suppression *SuppressionAt(uptr i) const;
  45   void GetMatched(InternalMmapVector<Suppression *> *matched);
  46
  47   // Create a SuppressionContext singleton if it hasn't been created earlier.
  48   // Not thread safe. Must be called early during initialization (but after
  49   // runtime flags are parsed).
  50   static void InitIfNecessary();
  51   // Returns a SuppressionContext singleton.
  52   static SuppressionContext *Get();
  53
  54  private:
  55   SuppressionContext() : suppressions_(1), can_parse_(true) {}
  56   InternalMmapVector<Suppression> suppressions_;
  57   bool can_parse_;
  58
  59   friend class SuppressionContextTest;
  60 };
  61
  62 const char *SuppressionTypeString(SuppressionType t);
  63
  64 bool TemplateMatch(char *templ, const char *str);
  65
  66 }  // namespace __sanitizer
  67
  68 #endif  // SANITIZER_SUPPRESSIONS_H