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
55 lines
2.4 KiB
C++
55 lines
2.4 KiB
C++
//===-- memprof_interceptors.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
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of MemProfiler, a memory profiler.
|
|
//
|
|
// MemProf-private header for memprof_interceptors.cpp
|
|
//===----------------------------------------------------------------------===//
|
|
#ifndef MEMPROF_INTERCEPTORS_H
|
|
#define MEMPROF_INTERCEPTORS_H
|
|
|
|
#include "interception/interception.h"
|
|
#include "memprof_interceptors_memintrinsics.h"
|
|
#include "memprof_internal.h"
|
|
#include "sanitizer_common/sanitizer_platform_interceptors.h"
|
|
|
|
namespace __memprof {
|
|
|
|
void InitializeMemprofInterceptors();
|
|
void InitializePlatformInterceptors();
|
|
|
|
#define ENSURE_MEMPROF_INITED() \
|
|
do { \
|
|
CHECK(!memprof_init_is_running); \
|
|
if (UNLIKELY(!memprof_inited)) { \
|
|
MemprofInitFromRtl(); \
|
|
} \
|
|
} while (0)
|
|
|
|
} // namespace __memprof
|
|
|
|
DECLARE_REAL(int, memcmp, const void *a1, const void *a2, uptr size)
|
|
DECLARE_REAL(char *, strchr, const char *str, int c)
|
|
DECLARE_REAL(SIZE_T, strlen, const char *s)
|
|
DECLARE_REAL(char *, strncpy, char *to, const char *from, uptr size)
|
|
DECLARE_REAL(uptr, strnlen, const char *s, uptr maxlen)
|
|
DECLARE_REAL(char *, strstr, const char *s1, const char *s2)
|
|
|
|
#define MEMPROF_INTERCEPT_FUNC(name) \
|
|
do { \
|
|
if (!INTERCEPT_FUNCTION(name)) \
|
|
VReport(1, "MemProfiler: failed to intercept '%s'\n'", #name); \
|
|
} while (0)
|
|
#define MEMPROF_INTERCEPT_FUNC_VER(name, ver) \
|
|
do { \
|
|
if (!INTERCEPT_FUNCTION_VER(name, ver)) \
|
|
VReport(1, "MemProfiler: failed to intercept '%s@@%s'\n", #name, #ver); \
|
|
} while (0)
|
|
|
|
#endif // MEMPROF_INTERCEPTORS_H
|