libsanitizer/sanitizer_common/sancov_flags.cc

   1 //===-- sancov_flags.cc -----------------------------------------*- 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 // Sanitizer Coverage runtime flags.
   9 //
  10 //===----------------------------------------------------------------------===//
  11
  12 #include "sancov_flags.h"
  13 #include "sanitizer_flag_parser.h"
  14 #include "sanitizer_platform.h"
  15
  16 SANITIZER_INTERFACE_WEAK_DEF(const char*, __sancov_default_options, void) {
  17   return "";
  18 }
  19
  20 using namespace __sanitizer;
  21
  22 namespace __sancov {
  23
  24 SancovFlags sancov_flags_dont_use_directly;  // use via flags();
  25
  26 void SancovFlags::SetDefaults() {
  27 #define SANCOV_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
  28 #include "sancov_flags.inc"
  29 #undef SANCOV_FLAG
  30 }
  31
  32 static void RegisterSancovFlags(FlagParser *parser, SancovFlags *f) {
  33 #define SANCOV_FLAG(Type, Name, DefaultValue, Description) \
  34   RegisterFlag(parser, #Name, Description, &f->Name);
  35 #include "sancov_flags.inc"
  36 #undef SANCOV_FLAG
  37 }
  38
  39 static const char *MaybeCallSancovDefaultOptions() {
  40   return (&__sancov_default_options) ? __sancov_default_options() : "";
  41 }
  42
  43 void InitializeSancovFlags() {
  44   SancovFlags *f = sancov_flags();
  45   f->SetDefaults();
  46
  47   FlagParser parser;
  48   RegisterSancovFlags(&parser, f);
  49
  50   parser.ParseString(MaybeCallSancovDefaultOptions());
  51   parser.ParseString(GetEnv("SANCOV_OPTIONS"));
  52
  53   ReportUnrecognizedFlags();
  54   if (f->help) parser.PrintFlagDescriptions();
  55 }
  56
  57 }  // namespace __sancov