88 lines
2.5 KiB
C++
88 lines
2.5 KiB
C++
//===-- sanitizer_flags.cc ------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer/AddressSanitizer runtime.
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//
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//===----------------------------------------------------------------------===//
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#include "sanitizer_flags.h"
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#include "sanitizer_common.h"
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#include "sanitizer_libc.h"
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#include "sanitizer_list.h"
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#include "sanitizer_flag_parser.h"
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namespace __sanitizer {
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CommonFlags common_flags_dont_use;
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struct FlagDescription {
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const char *name;
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const char *description;
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FlagDescription *next;
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};
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IntrusiveList<FlagDescription> flag_descriptions;
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// If set, the tool will install its own SEGV signal handler by default.
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#ifndef SANITIZER_NEEDS_SEGV
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# define SANITIZER_NEEDS_SEGV 1
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#endif
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void CommonFlags::SetDefaults() {
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#define COMMON_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
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#include "sanitizer_flags.inc"
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#undef COMMON_FLAG
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}
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void CommonFlags::CopyFrom(const CommonFlags &other) {
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internal_memcpy(this, &other, sizeof(*this));
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}
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class FlagHandlerInclude : public FlagHandlerBase {
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static const uptr kMaxIncludeSize = 1 << 15;
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FlagParser *parser_;
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public:
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explicit FlagHandlerInclude(FlagParser *parser) : parser_(parser) {}
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bool Parse(const char *value) final {
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char *data;
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uptr data_mapped_size;
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int err;
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uptr len =
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ReadFileToBuffer(value, &data, &data_mapped_size,
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Max(kMaxIncludeSize, GetPageSizeCached()), &err);
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if (!len) {
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Printf("Failed to read options from '%s': error %d\n", value, err);
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return false;
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}
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parser_->ParseString(data);
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UnmapOrDie(data, data_mapped_size);
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return true;
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}
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};
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void RegisterIncludeFlag(FlagParser *parser, CommonFlags *cf) {
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FlagHandlerInclude *fh_include =
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new (FlagParser::Alloc) FlagHandlerInclude(parser); // NOLINT
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parser->RegisterHandler("include", fh_include,
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"read more options from the given file");
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}
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void RegisterCommonFlags(FlagParser *parser, CommonFlags *cf) {
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#define COMMON_FLAG(Type, Name, DefaultValue, Description) \
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RegisterFlag(parser, #Name, Description, &cf->Name);
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#include "sanitizer_flags.inc"
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#undef COMMON_FLAG
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RegisterIncludeFlag(parser, cf);
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}
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} // namespace __sanitizer
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