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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
30 lines
979 B
C++
30 lines
979 B
C++
//===-- memprof_interceptors_memintrinsics.cpp ---------------------------===//
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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 versions of memcpy, memmove, and memset.
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//===---------------------------------------------------------------------===//
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#include "memprof_interceptors_memintrinsics.h"
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#include "memprof_stack.h"
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using namespace __memprof;
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void *__memprof_memcpy(void *to, const void *from, uptr size) {
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MEMPROF_MEMCPY_IMPL(to, from, size);
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}
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void *__memprof_memset(void *block, int c, uptr size) {
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MEMPROF_MEMSET_IMPL(block, c, size);
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}
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void *__memprof_memmove(void *to, const void *from, uptr size) {
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MEMPROF_MEMMOVE_IMPL(to, from, size);
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}
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