1 //===-- sanitizer_flag_parser.h ---------------------------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file is a part of ThreadSanitizer/AddressSanitizer runtime.
12 //===----------------------------------------------------------------------===//
14 #ifndef SANITIZER_FLAG_REGISTRY_H
15 #define SANITIZER_FLAG_REGISTRY_H
17 #include "sanitizer_internal_defs.h"
18 #include "sanitizer_libc.h"
19 #include "sanitizer_common.h"
21 namespace __sanitizer {
23 class FlagHandlerBase {
25 virtual bool Parse(const char *value) { return false; }
29 class FlagHandler : public FlagHandlerBase {
33 explicit FlagHandler(T *t) : t_(t) {}
34 bool Parse(const char *value) final;
38 inline bool FlagHandler<bool>::Parse(const char *value) {
39 if (internal_strcmp(value, "0") == 0 ||
40 internal_strcmp(value, "no") == 0 ||
41 internal_strcmp(value, "false") == 0) {
45 if (internal_strcmp(value, "1") == 0 ||
46 internal_strcmp(value, "yes") == 0 ||
47 internal_strcmp(value, "true") == 0) {
51 Printf("ERROR: Invalid value for bool option: '%s'\n", value);
56 inline bool FlagHandler<const char *>::Parse(const char *value) {
57 *t_ = internal_strdup(value);
62 inline bool FlagHandler<int>::Parse(const char *value) {
64 *t_ = internal_simple_strtoll(value, &value_end, 10);
65 bool ok = *value_end == 0;
66 if (!ok) Printf("ERROR: Invalid value for int option: '%s'\n", value);
71 inline bool FlagHandler<uptr>::Parse(const char *value) {
73 *t_ = internal_simple_strtoll(value, &value_end, 10);
74 bool ok = *value_end == 0;
75 if (!ok) Printf("ERROR: Invalid value for uptr option: '%s'\n", value);
80 static const int kMaxFlags = 200;
84 FlagHandlerBase *handler;
93 void RegisterHandler(const char *name, FlagHandlerBase *handler,
95 void ParseString(const char *s);
96 bool ParseFile(const char *path, bool ignore_missing);
97 void PrintFlagDescriptions();
99 static LowLevelAllocator Alloc;
102 void fatal_error(const char *err);
103 bool is_space(char c);
104 void skip_whitespace();
107 bool run_handler(const char *name, const char *value);
108 char *ll_strndup(const char *s, uptr n);
111 template <typename T>
112 static void RegisterFlag(FlagParser *parser, const char *name, const char *desc,
114 FlagHandler<T> *fh = new (FlagParser::Alloc) FlagHandler<T>(var); // NOLINT
115 parser->RegisterHandler(name, fh, desc);
118 void ReportUnrecognizedFlags();
120 } // namespace __sanitizer
122 #endif // SANITIZER_FLAG_REGISTRY_H