d44cb7a656
Summary: This is a redo of D63612. Two problems came up on some bots: - `__builtin_umull_overflow` was not declared. This is likely due to an older clang or gcc, so add a guard with `__has_builtin` and fallback to a division in the event the builtin doesn't exist; - contradicting definition for `malloc`, etc. This is AFAIU due to the fact that we ended up transitively including `stdlib.h` in the `.inc` due to it being the flags parser header: so move the include to the cc instead. This should fix the issues, but since those didn't come up in my local tests it's mostly guesswork. Rest is the same! Reviewers: morehouse, hctim, eugenis, vitalybuka, dyung, hans Reviewed By: morehouse, dyung, hans Subscribers: srhines, mgorny, delcypher, jfb, #sanitizers, llvm-commits Tags: #llvm, #sanitizers Differential Revision: https://reviews.llvm.org/D63831 llvm-svn: 364547
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
//===-- flags_parser.h ------------------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef SCUDO_FLAGS_PARSER_H_
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#define SCUDO_FLAGS_PARSER_H_
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#include "report.h"
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#include "string_utils.h"
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#include <stddef.h>
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namespace scudo {
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enum class FlagType : u8 {
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FT_bool,
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FT_int,
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};
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class FlagParser {
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public:
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void registerFlag(const char *Name, const char *Desc, FlagType Type,
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void *Var);
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void parseString(const char *S);
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void printFlagDescriptions();
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private:
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static const u32 MaxFlags = 12;
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struct Flag {
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const char *Name;
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const char *Desc;
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FlagType Type;
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void *Var;
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} Flags[MaxFlags];
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u32 NumberOfFlags = 0;
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const char *Buffer = nullptr;
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uptr Pos = 0;
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void reportFatalError(const char *Error);
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void skipWhitespace();
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void parseFlags();
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void parseFlag();
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bool runHandler(const char *Name, const char *Value);
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};
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void reportUnrecognizedFlags();
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} // namespace scudo
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#endif // SCUDO_FLAGS_PARSER_H_
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