3d4bba302d
See RFC for background: http://lists.llvm.org/pipermail/llvm-dev/2020-June/142744.html Follow on companion to the clang/llvm instrumentation support in D85948 and committed earlier. This patch adds the compiler-rt runtime support for the memory profiling. Note that much of this support was cloned from asan (and then greatly simplified and renamed). For example the interactions with the sanitizer_common allocators, error handling, interception, etc. The bulk of the memory profiling specific code can be found in the MemInfoBlock, MemInfoBlockCache, and related classes defined and used in memprof_allocator.cpp. For now, the memory profile is dumped to text (stderr by default, but honors the sanitizer_common log_path flag). It is dumped in either a default verbose format, or an optional terse format. This patch also adds a set of tests for the core functionality. Differential Revision: https://reviews.llvm.org/D87120
46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===-- memprof_flags.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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//
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// This file is a part of MemProfiler, a memory profiler.
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//
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// MemProf runtime flags.
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//===----------------------------------------------------------------------===//
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#ifndef MEMPROF_FLAGS_H
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#define MEMPROF_FLAGS_H
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#include "sanitizer_common/sanitizer_flag_parser.h"
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#include "sanitizer_common/sanitizer_internal_defs.h"
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// MemProf flag values can be defined in four ways:
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// 1) initialized with default values at startup.
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// 2) overriden during compilation of MemProf runtime by providing
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// compile definition MEMPROF_DEFAULT_OPTIONS.
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// 3) overriden from string returned by user-specified function
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// __memprof_default_options().
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// 4) overriden from env variable MEMPROF_OPTIONS.
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namespace __memprof {
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struct Flags {
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#define MEMPROF_FLAG(Type, Name, DefaultValue, Description) Type Name;
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#include "memprof_flags.inc"
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#undef MEMPROF_FLAG
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void SetDefaults();
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};
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extern Flags memprof_flags_dont_use_directly;
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inline Flags *flags() { return &memprof_flags_dont_use_directly; }
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void InitializeFlags();
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} // namespace __memprof
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#endif // MEMPROF_FLAGS_H
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