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
61 lines
2.1 KiB
C++
61 lines
2.1 KiB
C++
//===-- memprof_interface_internal.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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// This header declares the MemProfiler runtime interface functions.
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// The runtime library has to define these functions so the instrumented program
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// could call them.
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//
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// See also include/sanitizer/memprof_interface.h
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//===----------------------------------------------------------------------===//
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#ifndef MEMPROF_INTERFACE_INTERNAL_H
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#define MEMPROF_INTERFACE_INTERNAL_H
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#include "sanitizer_common/sanitizer_internal_defs.h"
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#include "memprof_init_version.h"
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using __sanitizer::u32;
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using __sanitizer::u64;
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using __sanitizer::uptr;
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extern "C" {
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// This function should be called at the very beginning of the process,
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// before any instrumented code is executed and before any call to malloc.
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_init();
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_preinit();
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_version_mismatch_check_v1();
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SANITIZER_INTERFACE_ATTRIBUTE
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void __memprof_record_access(void const volatile *addr);
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SANITIZER_INTERFACE_ATTRIBUTE
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void __memprof_record_access_range(void const volatile *addr, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_print_accumulated_stats();
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SANITIZER_INTERFACE_ATTRIBUTE
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const char *__memprof_default_options();
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SANITIZER_INTERFACE_ATTRIBUTE
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extern uptr __memprof_shadow_memory_dynamic_address;
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_load(uptr p);
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SANITIZER_INTERFACE_ATTRIBUTE void __memprof_store(uptr p);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__memprof_memcpy(void *dst, const void *src, uptr size);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__memprof_memset(void *s, int c, uptr n);
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SANITIZER_INTERFACE_ATTRIBUTE
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void *__memprof_memmove(void *dest, const void *src, uptr n);
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} // extern "C"
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#endif // MEMPROF_INTERFACE_INTERNAL_H
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