Importing rustc-1.38.0
Bug: 146571186
Change-Id: Idd23b6282b5f216d22a897103cac97284f84b416
diff --git a/src/llvm-project/compiler-rt/lib/scudo/standalone/flags_parser.h b/src/llvm-project/compiler-rt/lib/scudo/standalone/flags_parser.h
new file mode 100644
index 0000000..857b50e
--- /dev/null
+++ b/src/llvm-project/compiler-rt/lib/scudo/standalone/flags_parser.h
@@ -0,0 +1,55 @@
+//===-- flags_parser.h ------------------------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SCUDO_FLAGS_PARSER_H_
+#define SCUDO_FLAGS_PARSER_H_
+
+#include "report.h"
+#include "string_utils.h"
+
+#include <stddef.h>
+
+namespace scudo {
+
+enum class FlagType : u8 {
+ FT_bool,
+ FT_int,
+};
+
+class FlagParser {
+public:
+ void registerFlag(const char *Name, const char *Desc, FlagType Type,
+ void *Var);
+ void parseString(const char *S);
+ void printFlagDescriptions();
+
+private:
+ static const u32 MaxFlags = 12;
+ struct Flag {
+ const char *Name;
+ const char *Desc;
+ FlagType Type;
+ void *Var;
+ } Flags[MaxFlags];
+
+ u32 NumberOfFlags = 0;
+ const char *Buffer = nullptr;
+ uptr Pos = 0;
+
+ void reportFatalError(const char *Error);
+ void skipWhitespace();
+ void parseFlags();
+ void parseFlag();
+ bool runHandler(const char *Name, const char *Value);
+};
+
+void reportUnrecognizedFlags();
+
+} // namespace scudo
+
+#endif // SCUDO_FLAGS_PARSER_H_
