1 //===-- sancov_flags.cpp ----------------------------------------*- 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 // Sanitizer Coverage runtime flags.
10 //
11 //===----------------------------------------------------------------------===//
12
13 #include "sancov_flags.h"
14 #include "sanitizer_flag_parser.h"
15 #include "sanitizer_platform.h"
16
SANITIZER_INTERFACE_WEAK_DEF(const char *,__sancov_default_options,void)17 SANITIZER_INTERFACE_WEAK_DEF(const char*, __sancov_default_options, void) {
18 return "";
19 }
20
21 using namespace __sanitizer;
22
23 namespace __sancov {
24
25 SancovFlags sancov_flags_dont_use_directly; // use via flags();
26
SetDefaults()27 void SancovFlags::SetDefaults() {
28 #define SANCOV_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
29 #include "sancov_flags.inc"
30 #undef SANCOV_FLAG
31 }
32
RegisterSancovFlags(FlagParser * parser,SancovFlags * f)33 static void RegisterSancovFlags(FlagParser *parser, SancovFlags *f) {
34 #define SANCOV_FLAG(Type, Name, DefaultValue, Description) \
35 RegisterFlag(parser, #Name, Description, &f->Name);
36 #include "sancov_flags.inc"
37 #undef SANCOV_FLAG
38 }
39
MaybeCallSancovDefaultOptions()40 static const char *MaybeCallSancovDefaultOptions() {
41 return (&__sancov_default_options) ? __sancov_default_options() : "";
42 }
43
InitializeSancovFlags()44 void InitializeSancovFlags() {
45 SancovFlags *f = sancov_flags();
46 f->SetDefaults();
47
48 FlagParser parser;
49 RegisterSancovFlags(&parser, f);
50
51 parser.ParseString(MaybeCallSancovDefaultOptions());
52 parser.ParseStringFromEnv("SANCOV_OPTIONS");
53
54 ReportUnrecognizedFlags();
55 if (f->help) parser.PrintFlagDescriptions();
56 }
57
58 } // namespace __sancov
59