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[MemProf] Memory profiling runtime support
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
This commit is contained in:
Teresa Johnson
parent
880fc4d581
commit
3d4bba302d
@ -45,6 +45,8 @@ option(COMPILER_RT_BUILD_LIBFUZZER "Build libFuzzer" ON)
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mark_as_advanced(COMPILER_RT_BUILD_LIBFUZZER)
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option(COMPILER_RT_BUILD_PROFILE "Build profile runtime" ON)
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mark_as_advanced(COMPILER_RT_BUILD_PROFILE)
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option(COMPILER_RT_BUILD_MEMPROF "Build memory profiling runtime" ON)
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mark_as_advanced(COMPILER_RT_BUILD_MEMPROF)
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option(COMPILER_RT_BUILD_XRAY_NO_PREINIT "Build xray with no preinit patching" OFF)
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mark_as_advanced(COMPILER_RT_BUILD_XRAY_NO_PREINIT)
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@ -324,6 +324,7 @@ else()
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endif()
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set(ALL_MSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64} ${S390X})
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set(ALL_HWASAN_SUPPORTED_ARCH ${X86_64} ${ARM64})
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set(ALL_MEMPROF_SUPPORTED_ARCH ${X86_64})
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set(ALL_PROFILE_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64} ${PPC64}
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${MIPS32} ${MIPS64} ${S390X} ${SPARC} ${SPARCV9})
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set(ALL_TSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})
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@ -551,6 +552,9 @@ if(APPLE)
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list_intersect(HWASAN_SUPPORTED_ARCH
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ALL_HWASAN_SUPPORTED_ARCH
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SANITIZER_COMMON_SUPPORTED_ARCH)
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list_intersect(MEMPROF_SUPPORTED_ARCH
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ALL_MEMPROF_SUPPORTED_ARCH
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SANITIZER_COMMON_SUPPORTED_ARCH)
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list_intersect(PROFILE_SUPPORTED_ARCH
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ALL_PROFILE_SUPPORTED_ARCH
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SANITIZER_COMMON_SUPPORTED_ARCH)
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@ -599,6 +603,7 @@ else()
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filter_available_targets(LSAN_SUPPORTED_ARCH ${ALL_LSAN_SUPPORTED_ARCH})
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filter_available_targets(MSAN_SUPPORTED_ARCH ${ALL_MSAN_SUPPORTED_ARCH})
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filter_available_targets(HWASAN_SUPPORTED_ARCH ${ALL_HWASAN_SUPPORTED_ARCH})
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filter_available_targets(MEMPROF_SUPPORTED_ARCH ${ALL_MEMPROF_SUPPORTED_ARCH})
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filter_available_targets(PROFILE_SUPPORTED_ARCH ${ALL_PROFILE_SUPPORTED_ARCH})
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filter_available_targets(TSAN_SUPPORTED_ARCH ${ALL_TSAN_SUPPORTED_ARCH})
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filter_available_targets(UBSAN_SUPPORTED_ARCH ${ALL_UBSAN_SUPPORTED_ARCH})
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@ -702,6 +707,13 @@ else()
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set(COMPILER_RT_HAS_HWASAN FALSE)
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endif()
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if (COMPILER_RT_HAS_SANITIZER_COMMON AND MEMPROF_SUPPORTED_ARCH AND
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OS_NAME MATCHES "Linux")
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set(COMPILER_RT_HAS_MEMPROF TRUE)
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else()
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set(COMPILER_RT_HAS_MEMPROF FALSE)
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endif()
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if (PROFILE_SUPPORTED_ARCH AND NOT LLVM_USE_SANITIZER AND
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OS_NAME MATCHES "Darwin|Linux|FreeBSD|Windows|Android|Fuchsia|SunOS|NetBSD")
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set(COMPILER_RT_HAS_PROFILE TRUE)
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@ -5,6 +5,7 @@ if (COMPILER_RT_BUILD_SANITIZERS)
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sanitizer/common_interface_defs.h
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sanitizer/coverage_interface.h
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sanitizer/dfsan_interface.h
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sanitizer/memprof_interface.h
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sanitizer/hwasan_interface.h
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sanitizer/linux_syscall_hooks.h
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sanitizer/lsan_interface.h
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60
compiler-rt/include/sanitizer/memprof_interface.h
Normal file
60
compiler-rt/include/sanitizer/memprof_interface.h
Normal file
@ -0,0 +1,60 @@
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//===-- sanitizer/memprof_interface.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 (MemProf).
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//
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// Public interface header.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_MEMPROF_INTERFACE_H
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#define SANITIZER_MEMPROF_INTERFACE_H
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#include <sanitizer/common_interface_defs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/// Records access to a memory region (<c>[addr, addr+size)</c>).
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///
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/// This memory must be previously allocated by your program.
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///
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/// \param addr Start of memory region.
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/// \param size Size of memory region.
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void __memprof_record_access_range(void const volatile *addr, size_t size);
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/// Records access to a memory address <c><i>addr</i></c>.
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///
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/// This memory must be previously allocated by your program.
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///
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/// \param addr Accessed memory address
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void __memprof_record_access(void const volatile *addr);
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/// User-provided callback on MemProf errors.
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///
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/// You can provide a function that would be called immediately when MemProf
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/// detects an error. This is useful in cases when MemProf detects an error but
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/// your program crashes before the MemProf report is printed.
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void __memprof_on_error(void);
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/// Prints accumulated statistics to <c>stderr</c> (useful for calling from the
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/// debugger).
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void __memprof_print_accumulated_stats(void);
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/// User-provided default option settings.
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///
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/// You can provide your own implementation of this function to return a string
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/// containing MemProf runtime options (for example,
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/// <c>verbosity=1:print_stats=1</c>).
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///
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/// \returns Default options string.
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const char *__memprof_default_options(void);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // SANITIZER_MEMPROF_INTERFACE_H
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@ -60,6 +60,10 @@ if(COMPILER_RT_BUILD_LIBFUZZER)
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compiler_rt_build_runtime(fuzzer)
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endif()
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if(COMPILER_RT_BUILD_MEMPROF AND COMPILER_RT_HAS_SANITIZER_COMMON)
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compiler_rt_build_runtime(memprof)
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endif()
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# It doesn't normally make sense to build runtimes when a sanitizer is enabled,
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# so we don't add_subdirectory the runtimes in that case. However, the opposite
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# is true for fuzzers that exercise parts of the runtime. So we add the fuzzer
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195
compiler-rt/lib/memprof/CMakeLists.txt
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195
compiler-rt/lib/memprof/CMakeLists.txt
Normal file
@ -0,0 +1,195 @@
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# Build for the Memory Profiler runtime support library.
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set(MEMPROF_SOURCES
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memprof_allocator.cpp
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memprof_descriptions.cpp
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memprof_flags.cpp
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memprof_interceptors.cpp
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memprof_interceptors_memintrinsics.cpp
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memprof_linux.cpp
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memprof_malloc_linux.cpp
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memprof_posix.cpp
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memprof_rtl.cpp
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memprof_shadow_setup.cpp
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memprof_stack.cpp
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memprof_stats.cpp
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memprof_thread.cpp
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)
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set(MEMPROF_CXX_SOURCES
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memprof_new_delete.cpp
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)
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set(MEMPROF_PREINIT_SOURCES
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memprof_preinit.cpp
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)
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SET(MEMPROF_HEADERS
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memprof_allocator.h
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memprof_descriptions.h
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memprof_flags.h
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memprof_flags.inc
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memprof_init_version.h
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memprof_interceptors.h
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memprof_interceptors_memintrinsics.h
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memprof_interface_internal.h
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memprof_internal.h
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memprof_mapping.h
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memprof_stack.h
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memprof_stats.h
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memprof_thread.h
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)
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include_directories(..)
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set(MEMPROF_CFLAGS ${SANITIZER_COMMON_CFLAGS})
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set(MEMPROF_COMMON_DEFINITIONS "")
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append_rtti_flag(OFF MEMPROF_CFLAGS)
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set(MEMPROF_DYNAMIC_LINK_FLAGS ${SANITIZER_COMMON_LINK_FLAGS})
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set(MEMPROF_DYNAMIC_DEFINITIONS
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${MEMPROF_COMMON_DEFINITIONS} MEMPROF_DYNAMIC=1)
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set(MEMPROF_DYNAMIC_CFLAGS ${MEMPROF_CFLAGS})
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append_list_if(COMPILER_RT_HAS_FTLS_MODEL_INITIAL_EXEC
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-ftls-model=initial-exec MEMPROF_DYNAMIC_CFLAGS)
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set(MEMPROF_DYNAMIC_LIBS ${SANITIZER_CXX_ABI_LIBRARIES} ${SANITIZER_COMMON_LINK_LIBS})
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append_list_if(COMPILER_RT_HAS_LIBDL dl MEMPROF_DYNAMIC_LIBS)
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append_list_if(COMPILER_RT_HAS_LIBRT rt MEMPROF_DYNAMIC_LIBS)
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append_list_if(COMPILER_RT_HAS_LIBM m MEMPROF_DYNAMIC_LIBS)
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append_list_if(COMPILER_RT_HAS_LIBPTHREAD pthread MEMPROF_DYNAMIC_LIBS)
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append_list_if(COMPILER_RT_HAS_LIBLOG log MEMPROF_DYNAMIC_LIBS)
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if (TARGET cxx-headers OR HAVE_LIBCXX)
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set(MEMPROF_DEPS cxx-headers)
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endif()
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# Compile MemProf sources into an object library.
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add_compiler_rt_object_libraries(RTMemprof_dynamic
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OS ${SANITIZER_COMMON_SUPPORTED_OS}
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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SOURCES ${MEMPROF_SOURCES} ${MEMPROF_CXX_SOURCES}
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ADDITIONAL_HEADERS ${MEMPROF_HEADERS}
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CFLAGS ${MEMPROF_DYNAMIC_CFLAGS}
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DEFS ${MEMPROF_DYNAMIC_DEFINITIONS}
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DEPS ${MEMPROF_DEPS})
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add_compiler_rt_object_libraries(RTMemprof
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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SOURCES ${MEMPROF_SOURCES}
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ADDITIONAL_HEADERS ${MEMPROF_HEADERS}
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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DEPS ${MEMPROF_DEPS})
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add_compiler_rt_object_libraries(RTMemprof_cxx
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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SOURCES ${MEMPROF_CXX_SOURCES}
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ADDITIONAL_HEADERS ${MEMPROF_HEADERS}
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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DEPS ${MEMPROF_DEPS})
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add_compiler_rt_object_libraries(RTMemprof_preinit
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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SOURCES ${MEMPROF_PREINIT_SOURCES}
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ADDITIONAL_HEADERS ${MEMPROF_HEADERS}
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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DEPS ${MEMPROF_DEPS})
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file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp "")
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add_compiler_rt_object_libraries(RTMemprof_dynamic_version_script_dummy
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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SOURCES ${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
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CFLAGS ${MEMPROF_DYNAMIC_CFLAGS}
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DEFS ${MEMPROF_DYNAMIC_DEFINITIONS}
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DEPS ${MEMPROF_DEPS})
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# Build MemProf runtimes shipped with Clang.
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add_compiler_rt_component(memprof)
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# Build separate libraries for each target.
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set(MEMPROF_COMMON_RUNTIME_OBJECT_LIBS
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RTInterception
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RTSanitizerCommon
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RTSanitizerCommonLibc
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RTSanitizerCommonCoverage
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RTSanitizerCommonSymbolizer)
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add_compiler_rt_runtime(clang_rt.memprof
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STATIC
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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OBJECT_LIBS RTMemprof_preinit
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RTMemprof
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${MEMPROF_COMMON_RUNTIME_OBJECT_LIBS}
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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PARENT_TARGET memprof)
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add_compiler_rt_runtime(clang_rt.memprof_cxx
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STATIC
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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OBJECT_LIBS RTMemprof_cxx
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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PARENT_TARGET memprof)
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add_compiler_rt_runtime(clang_rt.memprof-preinit
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STATIC
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ARCHS ${MEMPROF_SUPPORTED_ARCH}
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OBJECT_LIBS RTMemprof_preinit
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CFLAGS ${MEMPROF_CFLAGS}
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DEFS ${MEMPROF_COMMON_DEFINITIONS}
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PARENT_TARGET memprof)
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foreach(arch ${MEMPROF_SUPPORTED_ARCH})
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if (UNIX)
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add_sanitizer_rt_version_list(clang_rt.memprof-dynamic-${arch}
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LIBS clang_rt.memprof-${arch} clang_rt.memprof_cxx-${arch}
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EXTRA memprof.syms.extra)
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set(VERSION_SCRIPT_FLAG
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-Wl,--version-script,${CMAKE_CURRENT_BINARY_DIR}/clang_rt.memprof-dynamic-${arch}.vers)
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set_property(SOURCE
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${CMAKE_CURRENT_BINARY_DIR}/dummy.cpp
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APPEND PROPERTY
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OBJECT_DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/clang_rt.memprof-dynamic-${arch}.vers)
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else()
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set(VERSION_SCRIPT_FLAG)
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endif()
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set(MEMPROF_DYNAMIC_WEAK_INTERCEPTION)
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add_compiler_rt_runtime(clang_rt.memprof
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SHARED
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ARCHS ${arch}
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OBJECT_LIBS ${MEMPROF_COMMON_RUNTIME_OBJECT_LIBS}
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RTMemprof_dynamic
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# The only purpose of RTMemprof_dynamic_version_script_dummy is to
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# carry a dependency of the shared runtime on the version script.
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# Replacing it with a straightforward
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# add_dependencies(clang_rt.memprof-dynamic-${arch} clang_rt.memprof-dynamic-${arch}-version-list)
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# generates an order-only dependency in ninja.
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RTMemprof_dynamic_version_script_dummy
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${MEMPROF_DYNAMIC_WEAK_INTERCEPTION}
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CFLAGS ${MEMPROF_DYNAMIC_CFLAGS}
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LINK_FLAGS ${MEMPROF_DYNAMIC_LINK_FLAGS}
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${VERSION_SCRIPT_FLAG}
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LINK_LIBS ${MEMPROF_DYNAMIC_LIBS}
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DEFS ${MEMPROF_DYNAMIC_DEFINITIONS}
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PARENT_TARGET memprof)
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if (SANITIZER_USE_SYMBOLS)
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add_sanitizer_rt_symbols(clang_rt.memprof_cxx
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ARCHS ${arch})
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add_dependencies(memprof clang_rt.memprof_cxx-${arch}-symbols)
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add_sanitizer_rt_symbols(clang_rt.memprof
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ARCHS ${arch}
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EXTRA memprof.syms.extra)
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add_dependencies(memprof clang_rt.memprof-${arch}-symbols)
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endif()
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endforeach()
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17
compiler-rt/lib/memprof/README.txt
Normal file
17
compiler-rt/lib/memprof/README.txt
Normal file
@ -0,0 +1,17 @@
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MemProfiling RT
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================================
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This directory contains sources of the MemProfiling (MemProf) runtime library.
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Directory structure:
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README.txt : This file.
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CMakeLists.txt : File for cmake-based build.
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memprof_*.{cc,h} : Sources of the memprof runtime library.
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Also MemProf runtime needs the following libraries:
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lib/interception/ : Machinery used to intercept function calls.
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lib/sanitizer_common/ : Code shared between various sanitizers.
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MemProf runtime can only be built by CMake. You can run MemProf tests
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from the root of your CMake build tree:
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make check-memprof
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1
compiler-rt/lib/memprof/memprof.syms.extra
Normal file
1
compiler-rt/lib/memprof/memprof.syms.extra
Normal file
@ -0,0 +1 @@
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__memprof_*
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898
compiler-rt/lib/memprof/memprof_allocator.cpp
Normal file
898
compiler-rt/lib/memprof/memprof_allocator.cpp
Normal file
@ -0,0 +1,898 @@
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//===-- memprof_allocator.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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// Implementation of MemProf's memory allocator, which uses the allocator
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// from sanitizer_common.
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//
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//===----------------------------------------------------------------------===//
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#include "memprof_allocator.h"
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#include "memprof_mapping.h"
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#include "memprof_stack.h"
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#include "memprof_thread.h"
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#include "sanitizer_common/sanitizer_allocator_checks.h"
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#include "sanitizer_common/sanitizer_allocator_interface.h"
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#include "sanitizer_common/sanitizer_allocator_report.h"
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#include "sanitizer_common/sanitizer_errno.h"
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#include "sanitizer_common/sanitizer_file.h"
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#include "sanitizer_common/sanitizer_flags.h"
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#include "sanitizer_common/sanitizer_internal_defs.h"
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#include "sanitizer_common/sanitizer_list.h"
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#include "sanitizer_common/sanitizer_stackdepot.h"
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#include <ctime>
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#include <sched.h>
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#include <stdlib.h>
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namespace __memprof {
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static int GetCpuId(void) {
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// _memprof_preinit is called via the preinit_array, which subsequently calls
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// malloc. Since this is before _dl_init calls VDSO_SETUP, sched_getcpu
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// will seg fault as the address of __vdso_getcpu will be null.
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if (!memprof_init_done)
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return -1;
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return sched_getcpu();
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||||
}
|
||||
|
||||
// Compute the timestamp in ms.
|
||||
static int GetTimestamp(void) {
|
||||
// timespec_get will segfault if called from dl_init
|
||||
if (!memprof_timestamp_inited) {
|
||||
// By returning 0, this will be effectively treated as being
|
||||
// timestamped at memprof init time (when memprof_init_timestamp_s
|
||||
// is initialized).
|
||||
return 0;
|
||||
}
|
||||
timespec ts;
|
||||
timespec_get(&ts, TIME_UTC);
|
||||
return (ts.tv_sec - memprof_init_timestamp_s) * 1000 + ts.tv_nsec / 1000000;
|
||||
}
|
||||
|
||||
static MemprofAllocator &get_allocator();
|
||||
|
||||
// The memory chunk allocated from the underlying allocator looks like this:
|
||||
// H H U U U U U U
|
||||
// H -- ChunkHeader (32 bytes)
|
||||
// U -- user memory.
|
||||
|
||||
// If there is left padding before the ChunkHeader (due to use of memalign),
|
||||
// we store a magic value in the first uptr word of the memory block and
|
||||
// store the address of ChunkHeader in the next uptr.
|
||||
// M B L L L L L L L L L H H U U U U U U
|
||||
// | ^
|
||||
// ---------------------|
|
||||
// M -- magic value kAllocBegMagic
|
||||
// B -- address of ChunkHeader pointing to the first 'H'
|
||||
|
||||
constexpr uptr kMaxAllowedMallocBits = 40;
|
||||
|
||||
// Should be no more than 32-bytes
|
||||
struct ChunkHeader {
|
||||
// 1-st 4 bytes.
|
||||
u32 alloc_context_id;
|
||||
// 2-nd 4 bytes
|
||||
u32 cpu_id;
|
||||
// 3-rd 4 bytes
|
||||
u32 timestamp_ms;
|
||||
// 4-th 4 bytes
|
||||
// Note only 1 bit is needed for this flag if we need space in the future for
|
||||
// more fields.
|
||||
u32 from_memalign;
|
||||
// 5-th and 6-th 4 bytes
|
||||
// The max size of an allocation is 2^40 (kMaxAllowedMallocSize), so this
|
||||
// could be shrunk to kMaxAllowedMallocBits if we need space in the future for
|
||||
// more fields.
|
||||
atomic_uint64_t user_requested_size;
|
||||
// 23 bits available
|
||||
// 7-th and 8-th 4 bytes
|
||||
u64 data_type_id; // TODO: hash of type name
|
||||
};
|
||||
|
||||
static const uptr kChunkHeaderSize = sizeof(ChunkHeader);
|
||||
COMPILER_CHECK(kChunkHeaderSize == 32);
|
||||
|
||||
struct MemprofChunk : ChunkHeader {
|
||||
uptr Beg() { return reinterpret_cast<uptr>(this) + kChunkHeaderSize; }
|
||||
uptr UsedSize() {
|
||||
return atomic_load(&user_requested_size, memory_order_relaxed);
|
||||
}
|
||||
void *AllocBeg() {
|
||||
if (from_memalign)
|
||||
return get_allocator().GetBlockBegin(reinterpret_cast<void *>(this));
|
||||
return reinterpret_cast<void *>(this);
|
||||
}
|
||||
};
|
||||
|
||||
class LargeChunkHeader {
|
||||
static constexpr uptr kAllocBegMagic =
|
||||
FIRST_32_SECOND_64(0xCC6E96B9, 0xCC6E96B9CC6E96B9ULL);
|
||||
atomic_uintptr_t magic;
|
||||
MemprofChunk *chunk_header;
|
||||
|
||||
public:
|
||||
MemprofChunk *Get() const {
|
||||
return atomic_load(&magic, memory_order_acquire) == kAllocBegMagic
|
||||
? chunk_header
|
||||
: nullptr;
|
||||
}
|
||||
|
||||
void Set(MemprofChunk *p) {
|
||||
if (p) {
|
||||
chunk_header = p;
|
||||
atomic_store(&magic, kAllocBegMagic, memory_order_release);
|
||||
return;
|
||||
}
|
||||
|
||||
uptr old = kAllocBegMagic;
|
||||
if (!atomic_compare_exchange_strong(&magic, &old, 0,
|
||||
memory_order_release)) {
|
||||
CHECK_EQ(old, kAllocBegMagic);
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
void FlushUnneededMemProfShadowMemory(uptr p, uptr size) {
|
||||
// Since memprof's mapping is compacting, the shadow chunk may be
|
||||
// not page-aligned, so we only flush the page-aligned portion.
|
||||
ReleaseMemoryPagesToOS(MemToShadow(p), MemToShadow(p + size));
|
||||
}
|
||||
|
||||
void MemprofMapUnmapCallback::OnMap(uptr p, uptr size) const {
|
||||
// Statistics.
|
||||
MemprofStats &thread_stats = GetCurrentThreadStats();
|
||||
thread_stats.mmaps++;
|
||||
thread_stats.mmaped += size;
|
||||
}
|
||||
void MemprofMapUnmapCallback::OnUnmap(uptr p, uptr size) const {
|
||||
// We are about to unmap a chunk of user memory.
|
||||
// Mark the corresponding shadow memory as not needed.
|
||||
FlushUnneededMemProfShadowMemory(p, size);
|
||||
// Statistics.
|
||||
MemprofStats &thread_stats = GetCurrentThreadStats();
|
||||
thread_stats.munmaps++;
|
||||
thread_stats.munmaped += size;
|
||||
}
|
||||
|
||||
AllocatorCache *GetAllocatorCache(MemprofThreadLocalMallocStorage *ms) {
|
||||
CHECK(ms);
|
||||
return &ms->allocator_cache;
|
||||
}
|
||||
|
||||
struct MemInfoBlock {
|
||||
u32 alloc_count;
|
||||
u64 total_access_count, min_access_count, max_access_count;
|
||||
u64 total_size;
|
||||
u32 min_size, max_size;
|
||||
u32 alloc_timestamp, dealloc_timestamp;
|
||||
u64 total_lifetime;
|
||||
u32 min_lifetime, max_lifetime;
|
||||
u32 alloc_cpu_id, dealloc_cpu_id;
|
||||
u32 num_migrated_cpu;
|
||||
|
||||
// Only compared to prior deallocated object currently.
|
||||
u32 num_lifetime_overlaps;
|
||||
u32 num_same_alloc_cpu;
|
||||
u32 num_same_dealloc_cpu;
|
||||
|
||||
u64 data_type_id; // TODO: hash of type name
|
||||
|
||||
MemInfoBlock() : alloc_count(0) {}
|
||||
|
||||
MemInfoBlock(u32 size, u64 access_count, u32 alloc_timestamp,
|
||||
u32 dealloc_timestamp, u32 alloc_cpu, u32 dealloc_cpu)
|
||||
: alloc_count(1), total_access_count(access_count),
|
||||
min_access_count(access_count), max_access_count(access_count),
|
||||
total_size(size), min_size(size), max_size(size),
|
||||
alloc_timestamp(alloc_timestamp), dealloc_timestamp(dealloc_timestamp),
|
||||
total_lifetime(dealloc_timestamp - alloc_timestamp),
|
||||
min_lifetime(total_lifetime), max_lifetime(total_lifetime),
|
||||
alloc_cpu_id(alloc_cpu), dealloc_cpu_id(dealloc_cpu),
|
||||
num_lifetime_overlaps(0), num_same_alloc_cpu(0),
|
||||
num_same_dealloc_cpu(0) {
|
||||
num_migrated_cpu = alloc_cpu_id != dealloc_cpu_id;
|
||||
}
|
||||
|
||||
void Print(u64 id) {
|
||||
u64 p;
|
||||
if (flags()->print_terse) {
|
||||
p = total_size * 100 / alloc_count;
|
||||
Printf("MIB:%llu/%u/%d.%02d/%u/%u/", id, alloc_count, p / 100, p % 100,
|
||||
min_size, max_size);
|
||||
p = total_access_count * 100 / alloc_count;
|
||||
Printf("%d.%02d/%u/%u/", p / 100, p % 100, min_access_count,
|
||||
max_access_count);
|
||||
p = total_lifetime * 100 / alloc_count;
|
||||
Printf("%d.%02d/%u/%u/", p / 100, p % 100, min_lifetime, max_lifetime);
|
||||
Printf("%u/%u/%u/%u\n", num_migrated_cpu, num_lifetime_overlaps,
|
||||
num_same_alloc_cpu, num_same_dealloc_cpu);
|
||||
} else {
|
||||
p = total_size * 100 / alloc_count;
|
||||
Printf("Memory allocation stack id = %llu\n", id);
|
||||
Printf("\talloc_count %u, size (ave/min/max) %d.%02d / %u / %u\n",
|
||||
alloc_count, p / 100, p % 100, min_size, max_size);
|
||||
p = total_access_count * 100 / alloc_count;
|
||||
Printf("\taccess_count (ave/min/max): %d.%02d / %u / %u\n", p / 100,
|
||||
p % 100, min_access_count, max_access_count);
|
||||
p = total_lifetime * 100 / alloc_count;
|
||||
Printf("\tlifetime (ave/min/max): %d.%02d / %u / %u\n", p / 100, p % 100,
|
||||
min_lifetime, max_lifetime);
|
||||
Printf("\tnum migrated: %u, num lifetime overlaps: %u, num same alloc "
|
||||
"cpu: %u, num same dealloc_cpu: %u\n",
|
||||
num_migrated_cpu, num_lifetime_overlaps, num_same_alloc_cpu,
|
||||
num_same_dealloc_cpu);
|
||||
}
|
||||
}
|
||||
|
||||
static void printHeader() {
|
||||
CHECK(flags()->print_terse);
|
||||
Printf("MIB:StackID/AllocCount/AveSize/MinSize/MaxSize/AveAccessCount/"
|
||||
"MinAccessCount/MaxAccessCount/AveLifetime/MinLifetime/MaxLifetime/"
|
||||
"NumMigratedCpu/NumLifetimeOverlaps/NumSameAllocCpu/"
|
||||
"NumSameDeallocCpu\n");
|
||||
}
|
||||
|
||||
void Merge(MemInfoBlock &newMIB) {
|
||||
alloc_count += newMIB.alloc_count;
|
||||
|
||||
total_access_count += newMIB.total_access_count;
|
||||
min_access_count = Min(min_access_count, newMIB.min_access_count);
|
||||
max_access_count = Max(max_access_count, newMIB.max_access_count);
|
||||
|
||||
total_size += newMIB.total_size;
|
||||
min_size = Min(min_size, newMIB.min_size);
|
||||
max_size = Max(max_size, newMIB.max_size);
|
||||
|
||||
total_lifetime += newMIB.total_lifetime;
|
||||
min_lifetime = Min(min_lifetime, newMIB.min_lifetime);
|
||||
max_lifetime = Max(max_lifetime, newMIB.max_lifetime);
|
||||
|
||||
// We know newMIB was deallocated later, so just need to check if it was
|
||||
// allocated before last one deallocated.
|
||||
num_lifetime_overlaps += newMIB.alloc_timestamp < dealloc_timestamp;
|
||||
alloc_timestamp = newMIB.alloc_timestamp;
|
||||
dealloc_timestamp = newMIB.dealloc_timestamp;
|
||||
|
||||
num_same_alloc_cpu += alloc_cpu_id == newMIB.alloc_cpu_id;
|
||||
num_same_dealloc_cpu += dealloc_cpu_id == newMIB.dealloc_cpu_id;
|
||||
alloc_cpu_id = newMIB.alloc_cpu_id;
|
||||
dealloc_cpu_id = newMIB.dealloc_cpu_id;
|
||||
}
|
||||
};
|
||||
|
||||
static u32 AccessCount = 0;
|
||||
static u32 MissCount = 0;
|
||||
|
||||
struct SetEntry {
|
||||
SetEntry() : id(0), MIB() {}
|
||||
bool Empty() { return id == 0; }
|
||||
void Print() {
|
||||
CHECK(!Empty());
|
||||
MIB.Print(id);
|
||||
}
|
||||
// The stack id
|
||||
u64 id;
|
||||
MemInfoBlock MIB;
|
||||
};
|
||||
|
||||
struct CacheSet {
|
||||
enum { kSetSize = 4 };
|
||||
|
||||
void PrintAll() {
|
||||
for (int i = 0; i < kSetSize; i++) {
|
||||
if (Entries[i].Empty())
|
||||
continue;
|
||||
Entries[i].Print();
|
||||
}
|
||||
}
|
||||
void insertOrMerge(u64 new_id, MemInfoBlock &newMIB) {
|
||||
AccessCount++;
|
||||
SetAccessCount++;
|
||||
|
||||
for (int i = 0; i < kSetSize; i++) {
|
||||
auto id = Entries[i].id;
|
||||
// Check if this is a hit or an empty entry. Since we always move any
|
||||
// filled locations to the front of the array (see below), we don't need
|
||||
// to look after finding the first empty entry.
|
||||
if (id == new_id || !id) {
|
||||
if (id == 0) {
|
||||
Entries[i].id = new_id;
|
||||
Entries[i].MIB = newMIB;
|
||||
} else {
|
||||
Entries[i].MIB.Merge(newMIB);
|
||||
}
|
||||
// Assuming some id locality, we try to swap the matching entry
|
||||
// into the first set position.
|
||||
if (i != 0) {
|
||||
auto tmp = Entries[0];
|
||||
Entries[0] = Entries[i];
|
||||
Entries[i] = tmp;
|
||||
}
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
// Miss
|
||||
MissCount++;
|
||||
SetMissCount++;
|
||||
|
||||
// We try to find the entries with the lowest alloc count to be evicted:
|
||||
int min_idx = 0;
|
||||
u64 min_count = Entries[0].MIB.alloc_count;
|
||||
for (int i = 1; i < kSetSize; i++) {
|
||||
CHECK(!Entries[i].Empty());
|
||||
if (Entries[i].MIB.alloc_count < min_count) {
|
||||
min_idx = i;
|
||||
min_count = Entries[i].MIB.alloc_count;
|
||||
}
|
||||
}
|
||||
|
||||
// Print the evicted entry profile information
|
||||
if (!flags()->print_terse)
|
||||
Printf("Evicted:\n");
|
||||
Entries[min_idx].Print();
|
||||
|
||||
// Similar to the hit case, put new MIB in first set position.
|
||||
if (min_idx != 0)
|
||||
Entries[min_idx] = Entries[0];
|
||||
Entries[0].id = new_id;
|
||||
Entries[0].MIB = newMIB;
|
||||
}
|
||||
|
||||
void PrintMissRate(int i) {
|
||||
u64 p = SetAccessCount ? SetMissCount * 10000ULL / SetAccessCount : 0;
|
||||
Printf("Set %d miss rate: %d / %d = %5d.%02d%%\n", i, SetMissCount,
|
||||
SetAccessCount, p / 100, p % 100);
|
||||
}
|
||||
|
||||
SetEntry Entries[kSetSize];
|
||||
u32 SetAccessCount = 0;
|
||||
u32 SetMissCount = 0;
|
||||
};
|
||||
|
||||
struct MemInfoBlockCache {
|
||||
MemInfoBlockCache() {
|
||||
if (common_flags()->print_module_map)
|
||||
DumpProcessMap();
|
||||
if (flags()->print_terse)
|
||||
MemInfoBlock::printHeader();
|
||||
Sets =
|
||||
(CacheSet *)malloc(sizeof(CacheSet) * flags()->mem_info_cache_entries);
|
||||
Constructed = true;
|
||||
}
|
||||
|
||||
~MemInfoBlockCache() { free(Sets); }
|
||||
|
||||
void insertOrMerge(u64 new_id, MemInfoBlock &newMIB) {
|
||||
u64 hv = new_id;
|
||||
|
||||
// Use mod method where number of entries should be a prime close to power
|
||||
// of 2.
|
||||
hv %= flags()->mem_info_cache_entries;
|
||||
|
||||
return Sets[hv].insertOrMerge(new_id, newMIB);
|
||||
}
|
||||
|
||||
void PrintAll() {
|
||||
for (int i = 0; i < flags()->mem_info_cache_entries; i++) {
|
||||
Sets[i].PrintAll();
|
||||
}
|
||||
}
|
||||
|
||||
void PrintMissRate() {
|
||||
if (!flags()->print_mem_info_cache_miss_rate)
|
||||
return;
|
||||
u64 p = AccessCount ? MissCount * 10000ULL / AccessCount : 0;
|
||||
Printf("Overall miss rate: %d / %d = %5d.%02d%%\n", MissCount, AccessCount,
|
||||
p / 100, p % 100);
|
||||
if (flags()->print_mem_info_cache_miss_rate_details)
|
||||
for (int i = 0; i < flags()->mem_info_cache_entries; i++)
|
||||
Sets[i].PrintMissRate(i);
|
||||
}
|
||||
|
||||
CacheSet *Sets;
|
||||
// Flag when the Sets have been allocated, in case a deallocation is called
|
||||
// very early before the static init of the Allocator and therefore this table
|
||||
// have completed.
|
||||
bool Constructed = false;
|
||||
};
|
||||
|
||||
// Accumulates the access count from the shadow for the given pointer and size.
|
||||
u64 GetShadowCount(uptr p, u32 size) {
|
||||
u64 *shadow = (u64 *)MEM_TO_SHADOW(p);
|
||||
u64 *shadow_end = (u64 *)MEM_TO_SHADOW(p + size);
|
||||
u64 count = 0;
|
||||
for (; shadow <= shadow_end; shadow++)
|
||||
count += *shadow;
|
||||
return count;
|
||||
}
|
||||
|
||||
// Clears the shadow counters (when memory is allocated).
|
||||
void ClearShadow(uptr addr, uptr size) {
|
||||
CHECK(AddrIsAlignedByGranularity(addr));
|
||||
CHECK(AddrIsInMem(addr));
|
||||
CHECK(AddrIsAlignedByGranularity(addr + size));
|
||||
CHECK(AddrIsInMem(addr + size - SHADOW_GRANULARITY));
|
||||
CHECK(REAL(memset));
|
||||
uptr shadow_beg = MEM_TO_SHADOW(addr);
|
||||
uptr shadow_end = MEM_TO_SHADOW(addr + size - SHADOW_GRANULARITY) + 1;
|
||||
if (shadow_end - shadow_beg < common_flags()->clear_shadow_mmap_threshold) {
|
||||
REAL(memset)((void *)shadow_beg, 0, shadow_end - shadow_beg);
|
||||
} else {
|
||||
uptr page_size = GetPageSizeCached();
|
||||
uptr page_beg = RoundUpTo(shadow_beg, page_size);
|
||||
uptr page_end = RoundDownTo(shadow_end, page_size);
|
||||
|
||||
if (page_beg >= page_end) {
|
||||
REAL(memset)((void *)shadow_beg, 0, shadow_end - shadow_beg);
|
||||
} else {
|
||||
if (page_beg != shadow_beg) {
|
||||
REAL(memset)((void *)shadow_beg, 0, page_beg - shadow_beg);
|
||||
}
|
||||
if (page_end != shadow_end) {
|
||||
REAL(memset)((void *)page_end, 0, shadow_end - page_end);
|
||||
}
|
||||
ReserveShadowMemoryRange(page_beg, page_end - 1, nullptr);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
struct Allocator {
|
||||
static const uptr kMaxAllowedMallocSize = 1ULL << kMaxAllowedMallocBits;
|
||||
|
||||
MemprofAllocator allocator;
|
||||
StaticSpinMutex fallback_mutex;
|
||||
AllocatorCache fallback_allocator_cache;
|
||||
|
||||
uptr max_user_defined_malloc_size;
|
||||
atomic_uint8_t rss_limit_exceeded;
|
||||
|
||||
MemInfoBlockCache MemInfoBlockTable;
|
||||
bool destructing;
|
||||
|
||||
// ------------------- Initialization ------------------------
|
||||
explicit Allocator(LinkerInitialized) : destructing(false) {}
|
||||
|
||||
~Allocator() { FinishAndPrint(); }
|
||||
|
||||
void FinishAndPrint() {
|
||||
if (!flags()->print_terse)
|
||||
Printf("Live on exit:\n");
|
||||
allocator.ForceLock();
|
||||
allocator.ForEachChunk(
|
||||
[](uptr chunk, void *alloc) {
|
||||
u64 user_requested_size;
|
||||
MemprofChunk *m =
|
||||
((Allocator *)alloc)
|
||||
->GetMemprofChunk((void *)chunk, user_requested_size);
|
||||
if (!m)
|
||||
return;
|
||||
uptr user_beg = ((uptr)m) + kChunkHeaderSize;
|
||||
u64 c = GetShadowCount(user_beg, user_requested_size);
|
||||
long curtime = GetTimestamp();
|
||||
MemInfoBlock newMIB(user_requested_size, c, m->timestamp_ms, curtime,
|
||||
m->cpu_id, GetCpuId());
|
||||
((Allocator *)alloc)
|
||||
->MemInfoBlockTable.insertOrMerge(m->alloc_context_id, newMIB);
|
||||
},
|
||||
this);
|
||||
allocator.ForceUnlock();
|
||||
|
||||
destructing = true;
|
||||
MemInfoBlockTable.PrintMissRate();
|
||||
MemInfoBlockTable.PrintAll();
|
||||
StackDepotPrintAll();
|
||||
}
|
||||
|
||||
void InitLinkerInitialized() {
|
||||
SetAllocatorMayReturnNull(common_flags()->allocator_may_return_null);
|
||||
allocator.InitLinkerInitialized(
|
||||
common_flags()->allocator_release_to_os_interval_ms);
|
||||
max_user_defined_malloc_size = common_flags()->max_allocation_size_mb
|
||||
? common_flags()->max_allocation_size_mb
|
||||
<< 20
|
||||
: kMaxAllowedMallocSize;
|
||||
}
|
||||
|
||||
bool RssLimitExceeded() {
|
||||
return atomic_load(&rss_limit_exceeded, memory_order_relaxed);
|
||||
}
|
||||
|
||||
void SetRssLimitExceeded(bool limit_exceeded) {
|
||||
atomic_store(&rss_limit_exceeded, limit_exceeded, memory_order_relaxed);
|
||||
}
|
||||
|
||||
// -------------------- Allocation/Deallocation routines ---------------
|
||||
void *Allocate(uptr size, uptr alignment, BufferedStackTrace *stack,
|
||||
AllocType alloc_type) {
|
||||
if (UNLIKELY(!memprof_inited))
|
||||
MemprofInitFromRtl();
|
||||
if (RssLimitExceeded()) {
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportRssLimitExceeded(stack);
|
||||
}
|
||||
CHECK(stack);
|
||||
const uptr min_alignment = MEMPROF_ALIGNMENT;
|
||||
if (alignment < min_alignment)
|
||||
alignment = min_alignment;
|
||||
if (size == 0) {
|
||||
// We'd be happy to avoid allocating memory for zero-size requests, but
|
||||
// some programs/tests depend on this behavior and assume that malloc
|
||||
// would not return NULL even for zero-size allocations. Moreover, it
|
||||
// looks like operator new should never return NULL, and results of
|
||||
// consecutive "new" calls must be different even if the allocated size
|
||||
// is zero.
|
||||
size = 1;
|
||||
}
|
||||
CHECK(IsPowerOfTwo(alignment));
|
||||
uptr rounded_size = RoundUpTo(size, alignment);
|
||||
uptr needed_size = rounded_size + kChunkHeaderSize;
|
||||
if (alignment > min_alignment)
|
||||
needed_size += alignment;
|
||||
CHECK(IsAligned(needed_size, min_alignment));
|
||||
if (size > kMaxAllowedMallocSize || needed_size > kMaxAllowedMallocSize ||
|
||||
size > max_user_defined_malloc_size) {
|
||||
if (AllocatorMayReturnNull()) {
|
||||
Report("WARNING: MemProfiler failed to allocate 0x%zx bytes\n",
|
||||
(void *)size);
|
||||
return nullptr;
|
||||
}
|
||||
uptr malloc_limit =
|
||||
Min(kMaxAllowedMallocSize, max_user_defined_malloc_size);
|
||||
ReportAllocationSizeTooBig(size, malloc_limit, stack);
|
||||
}
|
||||
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
void *allocated;
|
||||
if (t) {
|
||||
AllocatorCache *cache = GetAllocatorCache(&t->malloc_storage());
|
||||
allocated = allocator.Allocate(cache, needed_size, 8);
|
||||
} else {
|
||||
SpinMutexLock l(&fallback_mutex);
|
||||
AllocatorCache *cache = &fallback_allocator_cache;
|
||||
allocated = allocator.Allocate(cache, needed_size, 8);
|
||||
}
|
||||
if (UNLIKELY(!allocated)) {
|
||||
SetAllocatorOutOfMemory();
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportOutOfMemory(size, stack);
|
||||
}
|
||||
|
||||
uptr alloc_beg = reinterpret_cast<uptr>(allocated);
|
||||
uptr alloc_end = alloc_beg + needed_size;
|
||||
uptr beg_plus_header = alloc_beg + kChunkHeaderSize;
|
||||
uptr user_beg = beg_plus_header;
|
||||
if (!IsAligned(user_beg, alignment))
|
||||
user_beg = RoundUpTo(user_beg, alignment);
|
||||
uptr user_end = user_beg + size;
|
||||
CHECK_LE(user_end, alloc_end);
|
||||
uptr chunk_beg = user_beg - kChunkHeaderSize;
|
||||
MemprofChunk *m = reinterpret_cast<MemprofChunk *>(chunk_beg);
|
||||
m->from_memalign = alloc_beg != chunk_beg;
|
||||
CHECK(size);
|
||||
|
||||
m->cpu_id = GetCpuId();
|
||||
m->timestamp_ms = GetTimestamp();
|
||||
m->alloc_context_id = StackDepotPut(*stack);
|
||||
|
||||
uptr size_rounded_down_to_granularity =
|
||||
RoundDownTo(size, SHADOW_GRANULARITY);
|
||||
if (size_rounded_down_to_granularity)
|
||||
ClearShadow(user_beg, size_rounded_down_to_granularity);
|
||||
|
||||
MemprofStats &thread_stats = GetCurrentThreadStats();
|
||||
thread_stats.mallocs++;
|
||||
thread_stats.malloced += size;
|
||||
thread_stats.malloced_overhead += needed_size - size;
|
||||
if (needed_size > SizeClassMap::kMaxSize)
|
||||
thread_stats.malloc_large++;
|
||||
else
|
||||
thread_stats.malloced_by_size[SizeClassMap::ClassID(needed_size)]++;
|
||||
|
||||
void *res = reinterpret_cast<void *>(user_beg);
|
||||
atomic_store(&m->user_requested_size, size, memory_order_release);
|
||||
if (alloc_beg != chunk_beg) {
|
||||
CHECK_LE(alloc_beg + sizeof(LargeChunkHeader), chunk_beg);
|
||||
reinterpret_cast<LargeChunkHeader *>(alloc_beg)->Set(m);
|
||||
}
|
||||
MEMPROF_MALLOC_HOOK(res, size);
|
||||
return res;
|
||||
}
|
||||
|
||||
void Deallocate(void *ptr, uptr delete_size, uptr delete_alignment,
|
||||
BufferedStackTrace *stack, AllocType alloc_type) {
|
||||
uptr p = reinterpret_cast<uptr>(ptr);
|
||||
if (p == 0)
|
||||
return;
|
||||
|
||||
MEMPROF_FREE_HOOK(ptr);
|
||||
|
||||
uptr chunk_beg = p - kChunkHeaderSize;
|
||||
MemprofChunk *m = reinterpret_cast<MemprofChunk *>(chunk_beg);
|
||||
|
||||
u64 user_requested_size =
|
||||
atomic_exchange(&m->user_requested_size, 0, memory_order_acquire);
|
||||
if (memprof_inited && memprof_init_done && !destructing &&
|
||||
MemInfoBlockTable.Constructed) {
|
||||
u64 c = GetShadowCount(p, user_requested_size);
|
||||
long curtime = GetTimestamp();
|
||||
|
||||
MemInfoBlock newMIB(user_requested_size, c, m->timestamp_ms, curtime,
|
||||
m->cpu_id, GetCpuId());
|
||||
{
|
||||
SpinMutexLock l(&fallback_mutex);
|
||||
MemInfoBlockTable.insertOrMerge(m->alloc_context_id, newMIB);
|
||||
}
|
||||
}
|
||||
|
||||
MemprofStats &thread_stats = GetCurrentThreadStats();
|
||||
thread_stats.frees++;
|
||||
thread_stats.freed += user_requested_size;
|
||||
|
||||
void *alloc_beg = m->AllocBeg();
|
||||
if (alloc_beg != m) {
|
||||
// Clear the magic value, as allocator internals may overwrite the
|
||||
// contents of deallocated chunk, confusing GetMemprofChunk lookup.
|
||||
reinterpret_cast<LargeChunkHeader *>(alloc_beg)->Set(nullptr);
|
||||
}
|
||||
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
if (t) {
|
||||
AllocatorCache *cache = GetAllocatorCache(&t->malloc_storage());
|
||||
allocator.Deallocate(cache, alloc_beg);
|
||||
} else {
|
||||
SpinMutexLock l(&fallback_mutex);
|
||||
AllocatorCache *cache = &fallback_allocator_cache;
|
||||
allocator.Deallocate(cache, alloc_beg);
|
||||
}
|
||||
}
|
||||
|
||||
void *Reallocate(void *old_ptr, uptr new_size, BufferedStackTrace *stack) {
|
||||
CHECK(old_ptr && new_size);
|
||||
uptr p = reinterpret_cast<uptr>(old_ptr);
|
||||
uptr chunk_beg = p - kChunkHeaderSize;
|
||||
MemprofChunk *m = reinterpret_cast<MemprofChunk *>(chunk_beg);
|
||||
|
||||
MemprofStats &thread_stats = GetCurrentThreadStats();
|
||||
thread_stats.reallocs++;
|
||||
thread_stats.realloced += new_size;
|
||||
|
||||
void *new_ptr = Allocate(new_size, 8, stack, FROM_MALLOC);
|
||||
if (new_ptr) {
|
||||
CHECK_NE(REAL(memcpy), nullptr);
|
||||
uptr memcpy_size = Min(new_size, m->UsedSize());
|
||||
REAL(memcpy)(new_ptr, old_ptr, memcpy_size);
|
||||
Deallocate(old_ptr, 0, 0, stack, FROM_MALLOC);
|
||||
}
|
||||
return new_ptr;
|
||||
}
|
||||
|
||||
void *Calloc(uptr nmemb, uptr size, BufferedStackTrace *stack) {
|
||||
if (UNLIKELY(CheckForCallocOverflow(size, nmemb))) {
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportCallocOverflow(nmemb, size, stack);
|
||||
}
|
||||
void *ptr = Allocate(nmemb * size, 8, stack, FROM_MALLOC);
|
||||
// If the memory comes from the secondary allocator no need to clear it
|
||||
// as it comes directly from mmap.
|
||||
if (ptr && allocator.FromPrimary(ptr))
|
||||
REAL(memset)(ptr, 0, nmemb * size);
|
||||
return ptr;
|
||||
}
|
||||
|
||||
void CommitBack(MemprofThreadLocalMallocStorage *ms,
|
||||
BufferedStackTrace *stack) {
|
||||
AllocatorCache *ac = GetAllocatorCache(ms);
|
||||
allocator.SwallowCache(ac);
|
||||
}
|
||||
|
||||
// -------------------------- Chunk lookup ----------------------
|
||||
|
||||
// Assumes alloc_beg == allocator.GetBlockBegin(alloc_beg).
|
||||
MemprofChunk *GetMemprofChunk(void *alloc_beg, u64 &user_requested_size) {
|
||||
if (!alloc_beg)
|
||||
return nullptr;
|
||||
MemprofChunk *p = reinterpret_cast<LargeChunkHeader *>(alloc_beg)->Get();
|
||||
if (!p) {
|
||||
if (!allocator.FromPrimary(alloc_beg))
|
||||
return nullptr;
|
||||
p = reinterpret_cast<MemprofChunk *>(alloc_beg);
|
||||
}
|
||||
// The size is reset to 0 on deallocation (and a min of 1 on
|
||||
// allocation).
|
||||
user_requested_size =
|
||||
atomic_load(&p->user_requested_size, memory_order_acquire);
|
||||
if (user_requested_size)
|
||||
return p;
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
MemprofChunk *GetMemprofChunkByAddr(uptr p, u64 &user_requested_size) {
|
||||
void *alloc_beg = allocator.GetBlockBegin(reinterpret_cast<void *>(p));
|
||||
return GetMemprofChunk(alloc_beg, user_requested_size);
|
||||
}
|
||||
|
||||
uptr AllocationSize(uptr p) {
|
||||
u64 user_requested_size;
|
||||
MemprofChunk *m = GetMemprofChunkByAddr(p, user_requested_size);
|
||||
if (!m)
|
||||
return 0;
|
||||
if (m->Beg() != p)
|
||||
return 0;
|
||||
return user_requested_size;
|
||||
}
|
||||
|
||||
void Purge(BufferedStackTrace *stack) { allocator.ForceReleaseToOS(); }
|
||||
|
||||
void PrintStats() { allocator.PrintStats(); }
|
||||
|
||||
void ForceLock() {
|
||||
allocator.ForceLock();
|
||||
fallback_mutex.Lock();
|
||||
}
|
||||
|
||||
void ForceUnlock() {
|
||||
fallback_mutex.Unlock();
|
||||
allocator.ForceUnlock();
|
||||
}
|
||||
};
|
||||
|
||||
static Allocator instance(LINKER_INITIALIZED);
|
||||
|
||||
static MemprofAllocator &get_allocator() { return instance.allocator; }
|
||||
|
||||
void InitializeAllocator() { instance.InitLinkerInitialized(); }
|
||||
|
||||
void MemprofThreadLocalMallocStorage::CommitBack() {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
instance.CommitBack(this, &stack);
|
||||
}
|
||||
|
||||
void PrintInternalAllocatorStats() { instance.PrintStats(); }
|
||||
|
||||
void memprof_free(void *ptr, BufferedStackTrace *stack, AllocType alloc_type) {
|
||||
instance.Deallocate(ptr, 0, 0, stack, alloc_type);
|
||||
}
|
||||
|
||||
void memprof_delete(void *ptr, uptr size, uptr alignment,
|
||||
BufferedStackTrace *stack, AllocType alloc_type) {
|
||||
instance.Deallocate(ptr, size, alignment, stack, alloc_type);
|
||||
}
|
||||
|
||||
void *memprof_malloc(uptr size, BufferedStackTrace *stack) {
|
||||
return SetErrnoOnNull(instance.Allocate(size, 8, stack, FROM_MALLOC));
|
||||
}
|
||||
|
||||
void *memprof_calloc(uptr nmemb, uptr size, BufferedStackTrace *stack) {
|
||||
return SetErrnoOnNull(instance.Calloc(nmemb, size, stack));
|
||||
}
|
||||
|
||||
void *memprof_reallocarray(void *p, uptr nmemb, uptr size,
|
||||
BufferedStackTrace *stack) {
|
||||
if (UNLIKELY(CheckForCallocOverflow(size, nmemb))) {
|
||||
errno = errno_ENOMEM;
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportReallocArrayOverflow(nmemb, size, stack);
|
||||
}
|
||||
return memprof_realloc(p, nmemb * size, stack);
|
||||
}
|
||||
|
||||
void *memprof_realloc(void *p, uptr size, BufferedStackTrace *stack) {
|
||||
if (!p)
|
||||
return SetErrnoOnNull(instance.Allocate(size, 8, stack, FROM_MALLOC));
|
||||
if (size == 0) {
|
||||
if (flags()->allocator_frees_and_returns_null_on_realloc_zero) {
|
||||
instance.Deallocate(p, 0, 0, stack, FROM_MALLOC);
|
||||
return nullptr;
|
||||
}
|
||||
// Allocate a size of 1 if we shouldn't free() on Realloc to 0
|
||||
size = 1;
|
||||
}
|
||||
return SetErrnoOnNull(instance.Reallocate(p, size, stack));
|
||||
}
|
||||
|
||||
void *memprof_valloc(uptr size, BufferedStackTrace *stack) {
|
||||
return SetErrnoOnNull(
|
||||
instance.Allocate(size, GetPageSizeCached(), stack, FROM_MALLOC));
|
||||
}
|
||||
|
||||
void *memprof_pvalloc(uptr size, BufferedStackTrace *stack) {
|
||||
uptr PageSize = GetPageSizeCached();
|
||||
if (UNLIKELY(CheckForPvallocOverflow(size, PageSize))) {
|
||||
errno = errno_ENOMEM;
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportPvallocOverflow(size, stack);
|
||||
}
|
||||
// pvalloc(0) should allocate one page.
|
||||
size = size ? RoundUpTo(size, PageSize) : PageSize;
|
||||
return SetErrnoOnNull(instance.Allocate(size, PageSize, stack, FROM_MALLOC));
|
||||
}
|
||||
|
||||
void *memprof_memalign(uptr alignment, uptr size, BufferedStackTrace *stack,
|
||||
AllocType alloc_type) {
|
||||
if (UNLIKELY(!IsPowerOfTwo(alignment))) {
|
||||
errno = errno_EINVAL;
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportInvalidAllocationAlignment(alignment, stack);
|
||||
}
|
||||
return SetErrnoOnNull(instance.Allocate(size, alignment, stack, alloc_type));
|
||||
}
|
||||
|
||||
void *memprof_aligned_alloc(uptr alignment, uptr size,
|
||||
BufferedStackTrace *stack) {
|
||||
if (UNLIKELY(!CheckAlignedAllocAlignmentAndSize(alignment, size))) {
|
||||
errno = errno_EINVAL;
|
||||
if (AllocatorMayReturnNull())
|
||||
return nullptr;
|
||||
ReportInvalidAlignedAllocAlignment(size, alignment, stack);
|
||||
}
|
||||
return SetErrnoOnNull(instance.Allocate(size, alignment, stack, FROM_MALLOC));
|
||||
}
|
||||
|
||||
int memprof_posix_memalign(void **memptr, uptr alignment, uptr size,
|
||||
BufferedStackTrace *stack) {
|
||||
if (UNLIKELY(!CheckPosixMemalignAlignment(alignment))) {
|
||||
if (AllocatorMayReturnNull())
|
||||
return errno_EINVAL;
|
||||
ReportInvalidPosixMemalignAlignment(alignment, stack);
|
||||
}
|
||||
void *ptr = instance.Allocate(size, alignment, stack, FROM_MALLOC);
|
||||
if (UNLIKELY(!ptr))
|
||||
// OOM error is already taken care of by Allocate.
|
||||
return errno_ENOMEM;
|
||||
CHECK(IsAligned((uptr)ptr, alignment));
|
||||
*memptr = ptr;
|
||||
return 0;
|
||||
}
|
||||
|
||||
uptr memprof_malloc_usable_size(const void *ptr, uptr pc, uptr bp) {
|
||||
if (!ptr)
|
||||
return 0;
|
||||
uptr usable_size = instance.AllocationSize(reinterpret_cast<uptr>(ptr));
|
||||
return usable_size;
|
||||
}
|
||||
|
||||
void MemprofSoftRssLimitExceededCallback(bool limit_exceeded) {
|
||||
instance.SetRssLimitExceeded(limit_exceeded);
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
// ---------------------- Interface ---------------- {{{1
|
||||
using namespace __memprof;
|
||||
|
||||
#if !SANITIZER_SUPPORTS_WEAK_HOOKS
|
||||
// Provide default (no-op) implementation of malloc hooks.
|
||||
SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_malloc_hook, void *ptr,
|
||||
uptr size) {
|
||||
(void)ptr;
|
||||
(void)size;
|
||||
}
|
||||
|
||||
SANITIZER_INTERFACE_WEAK_DEF(void, __sanitizer_free_hook, void *ptr) {
|
||||
(void)ptr;
|
||||
}
|
||||
#endif
|
||||
|
||||
uptr __sanitizer_get_estimated_allocated_size(uptr size) { return size; }
|
||||
|
||||
int __sanitizer_get_ownership(const void *p) {
|
||||
return memprof_malloc_usable_size(p, 0, 0) != 0;
|
||||
}
|
||||
|
||||
uptr __sanitizer_get_allocated_size(const void *p) {
|
||||
return memprof_malloc_usable_size(p, 0, 0);
|
||||
}
|
||||
105
compiler-rt/lib/memprof/memprof_allocator.h
Normal file
105
compiler-rt/lib/memprof/memprof_allocator.h
Normal file
@ -0,0 +1,105 @@
|
||||
//===-- memprof_allocator.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_allocator.cpp.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef MEMPROF_ALLOCATOR_H
|
||||
#define MEMPROF_ALLOCATOR_H
|
||||
|
||||
#include "memprof_flags.h"
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "sanitizer_common/sanitizer_allocator.h"
|
||||
#include "sanitizer_common/sanitizer_list.h"
|
||||
|
||||
#if !defined(__x86_64__)
|
||||
#error Unsupported platform
|
||||
#endif
|
||||
#if !SANITIZER_CAN_USE_ALLOCATOR64
|
||||
#error Only 64-bit allocator supported
|
||||
#endif
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
enum AllocType {
|
||||
FROM_MALLOC = 1, // Memory block came from malloc, calloc, realloc, etc.
|
||||
FROM_NEW = 2, // Memory block came from operator new.
|
||||
FROM_NEW_BR = 3 // Memory block came from operator new [ ]
|
||||
};
|
||||
|
||||
void InitializeAllocator();
|
||||
|
||||
struct MemprofMapUnmapCallback {
|
||||
void OnMap(uptr p, uptr size) const;
|
||||
void OnUnmap(uptr p, uptr size) const;
|
||||
};
|
||||
|
||||
constexpr uptr kAllocatorSpace = 0x600000000000ULL;
|
||||
constexpr uptr kAllocatorSize = 0x40000000000ULL; // 4T.
|
||||
typedef DefaultSizeClassMap SizeClassMap;
|
||||
template <typename AddressSpaceViewTy>
|
||||
struct AP64 { // Allocator64 parameters. Deliberately using a short name.
|
||||
static const uptr kSpaceBeg = kAllocatorSpace;
|
||||
static const uptr kSpaceSize = kAllocatorSize;
|
||||
static const uptr kMetadataSize = 0;
|
||||
typedef __memprof::SizeClassMap SizeClassMap;
|
||||
typedef MemprofMapUnmapCallback MapUnmapCallback;
|
||||
static const uptr kFlags = 0;
|
||||
using AddressSpaceView = AddressSpaceViewTy;
|
||||
};
|
||||
|
||||
template <typename AddressSpaceView>
|
||||
using PrimaryAllocatorASVT = SizeClassAllocator64<AP64<AddressSpaceView>>;
|
||||
using PrimaryAllocator = PrimaryAllocatorASVT<LocalAddressSpaceView>;
|
||||
|
||||
static const uptr kNumberOfSizeClasses = SizeClassMap::kNumClasses;
|
||||
|
||||
template <typename AddressSpaceView>
|
||||
using MemprofAllocatorASVT =
|
||||
CombinedAllocator<PrimaryAllocatorASVT<AddressSpaceView>>;
|
||||
using MemprofAllocator = MemprofAllocatorASVT<LocalAddressSpaceView>;
|
||||
using AllocatorCache = MemprofAllocator::AllocatorCache;
|
||||
|
||||
struct MemprofThreadLocalMallocStorage {
|
||||
uptr quarantine_cache[16];
|
||||
AllocatorCache allocator_cache;
|
||||
void CommitBack();
|
||||
|
||||
private:
|
||||
// These objects are allocated via mmap() and are zero-initialized.
|
||||
MemprofThreadLocalMallocStorage() {}
|
||||
};
|
||||
|
||||
void *memprof_memalign(uptr alignment, uptr size, BufferedStackTrace *stack,
|
||||
AllocType alloc_type);
|
||||
void memprof_free(void *ptr, BufferedStackTrace *stack, AllocType alloc_type);
|
||||
void memprof_delete(void *ptr, uptr size, uptr alignment,
|
||||
BufferedStackTrace *stack, AllocType alloc_type);
|
||||
|
||||
void *memprof_malloc(uptr size, BufferedStackTrace *stack);
|
||||
void *memprof_calloc(uptr nmemb, uptr size, BufferedStackTrace *stack);
|
||||
void *memprof_realloc(void *p, uptr size, BufferedStackTrace *stack);
|
||||
void *memprof_reallocarray(void *p, uptr nmemb, uptr size,
|
||||
BufferedStackTrace *stack);
|
||||
void *memprof_valloc(uptr size, BufferedStackTrace *stack);
|
||||
void *memprof_pvalloc(uptr size, BufferedStackTrace *stack);
|
||||
|
||||
void *memprof_aligned_alloc(uptr alignment, uptr size,
|
||||
BufferedStackTrace *stack);
|
||||
int memprof_posix_memalign(void **memptr, uptr alignment, uptr size,
|
||||
BufferedStackTrace *stack);
|
||||
uptr memprof_malloc_usable_size(const void *ptr, uptr pc, uptr bp);
|
||||
|
||||
void PrintInternalAllocatorStats();
|
||||
void MemprofSoftRssLimitExceededCallback(bool exceeded);
|
||||
|
||||
} // namespace __memprof
|
||||
#endif // MEMPROF_ALLOCATOR_H
|
||||
70
compiler-rt/lib/memprof/memprof_descriptions.cpp
Normal file
70
compiler-rt/lib/memprof/memprof_descriptions.cpp
Normal file
@ -0,0 +1,70 @@
|
||||
//===-- memprof_descriptions.cpp -------------------------------*- 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 functions for getting information about an address and/or printing
|
||||
// it.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_descriptions.h"
|
||||
#include "memprof_mapping.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "sanitizer_common/sanitizer_stackdepot.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
MemprofThreadIdAndName::MemprofThreadIdAndName(MemprofThreadContext *t) {
|
||||
Init(t->tid, t->name);
|
||||
}
|
||||
|
||||
MemprofThreadIdAndName::MemprofThreadIdAndName(u32 tid) {
|
||||
if (tid == kInvalidTid) {
|
||||
Init(tid, "");
|
||||
} else {
|
||||
memprofThreadRegistry().CheckLocked();
|
||||
MemprofThreadContext *t = GetThreadContextByTidLocked(tid);
|
||||
Init(tid, t->name);
|
||||
}
|
||||
}
|
||||
|
||||
void MemprofThreadIdAndName::Init(u32 tid, const char *tname) {
|
||||
int len = internal_snprintf(name, sizeof(name), "T%d", tid);
|
||||
CHECK(((unsigned int)len) < sizeof(name));
|
||||
if (tname[0] != '\0')
|
||||
internal_snprintf(&name[len], sizeof(name) - len, " (%s)", tname);
|
||||
}
|
||||
|
||||
void DescribeThread(MemprofThreadContext *context) {
|
||||
CHECK(context);
|
||||
memprofThreadRegistry().CheckLocked();
|
||||
// No need to announce the main thread.
|
||||
if (context->tid == 0 || context->announced) {
|
||||
return;
|
||||
}
|
||||
context->announced = true;
|
||||
InternalScopedString str(1024);
|
||||
str.append("Thread %s", MemprofThreadIdAndName(context).c_str());
|
||||
if (context->parent_tid == kInvalidTid) {
|
||||
str.append(" created by unknown thread\n");
|
||||
Printf("%s", str.data());
|
||||
return;
|
||||
}
|
||||
str.append(" created by %s here:\n",
|
||||
MemprofThreadIdAndName(context->parent_tid).c_str());
|
||||
Printf("%s", str.data());
|
||||
StackDepotGet(context->stack_id).Print();
|
||||
// Recursively described parent thread if needed.
|
||||
if (flags()->print_full_thread_history) {
|
||||
MemprofThreadContext *parent_context =
|
||||
GetThreadContextByTidLocked(context->parent_tid);
|
||||
DescribeThread(parent_context);
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
45
compiler-rt/lib/memprof/memprof_descriptions.h
Normal file
45
compiler-rt/lib/memprof/memprof_descriptions.h
Normal file
@ -0,0 +1,45 @@
|
||||
//===-- memprof_descriptions.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_descriptions.cpp.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_DESCRIPTIONS_H
|
||||
#define MEMPROF_DESCRIPTIONS_H
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_common.h"
|
||||
#include "sanitizer_common/sanitizer_report_decorator.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
void DescribeThread(MemprofThreadContext *context);
|
||||
inline void DescribeThread(MemprofThread *t) {
|
||||
if (t)
|
||||
DescribeThread(t->context());
|
||||
}
|
||||
|
||||
class MemprofThreadIdAndName {
|
||||
public:
|
||||
explicit MemprofThreadIdAndName(MemprofThreadContext *t);
|
||||
explicit MemprofThreadIdAndName(u32 tid);
|
||||
|
||||
// Contains "T%tid (%name)" or "T%tid" if the name is empty.
|
||||
const char *c_str() const { return &name[0]; }
|
||||
|
||||
private:
|
||||
void Init(u32 tid, const char *tname);
|
||||
|
||||
char name[128];
|
||||
};
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_DESCRIPTIONS_H
|
||||
93
compiler-rt/lib/memprof/memprof_flags.cpp
Normal file
93
compiler-rt/lib/memprof/memprof_flags.cpp
Normal file
@ -0,0 +1,93 @@
|
||||
//===-- memprof_flags.cpp --------------------------------------*- 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 flag parsing logic.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_flags.h"
|
||||
#include "memprof_interface_internal.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "sanitizer_common/sanitizer_common.h"
|
||||
#include "sanitizer_common/sanitizer_flag_parser.h"
|
||||
#include "sanitizer_common/sanitizer_flags.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
Flags memprof_flags_dont_use_directly; // use via flags().
|
||||
|
||||
static const char *MaybeUseMemprofDefaultOptionsCompileDefinition() {
|
||||
#ifdef MEMPROF_DEFAULT_OPTIONS
|
||||
return SANITIZER_STRINGIFY(MEMPROF_DEFAULT_OPTIONS);
|
||||
#else
|
||||
return "";
|
||||
#endif
|
||||
}
|
||||
|
||||
void Flags::SetDefaults() {
|
||||
#define MEMPROF_FLAG(Type, Name, DefaultValue, Description) Name = DefaultValue;
|
||||
#include "memprof_flags.inc"
|
||||
#undef MEMPROF_FLAG
|
||||
}
|
||||
|
||||
static void RegisterMemprofFlags(FlagParser *parser, Flags *f) {
|
||||
#define MEMPROF_FLAG(Type, Name, DefaultValue, Description) \
|
||||
RegisterFlag(parser, #Name, Description, &f->Name);
|
||||
#include "memprof_flags.inc"
|
||||
#undef MEMPROF_FLAG
|
||||
}
|
||||
|
||||
void InitializeFlags() {
|
||||
// Set the default values and prepare for parsing MemProf and common flags.
|
||||
SetCommonFlagsDefaults();
|
||||
{
|
||||
CommonFlags cf;
|
||||
cf.CopyFrom(*common_flags());
|
||||
cf.external_symbolizer_path = GetEnv("MEMPROF_SYMBOLIZER_PATH");
|
||||
cf.malloc_context_size = kDefaultMallocContextSize;
|
||||
cf.intercept_tls_get_addr = true;
|
||||
cf.exitcode = 1;
|
||||
OverrideCommonFlags(cf);
|
||||
}
|
||||
Flags *f = flags();
|
||||
f->SetDefaults();
|
||||
|
||||
FlagParser memprof_parser;
|
||||
RegisterMemprofFlags(&memprof_parser, f);
|
||||
RegisterCommonFlags(&memprof_parser);
|
||||
|
||||
// Override from MemProf compile definition.
|
||||
const char *memprof_compile_def =
|
||||
MaybeUseMemprofDefaultOptionsCompileDefinition();
|
||||
memprof_parser.ParseString(memprof_compile_def);
|
||||
|
||||
// Override from user-specified string.
|
||||
const char *memprof_default_options = __memprof_default_options();
|
||||
memprof_parser.ParseString(memprof_default_options);
|
||||
|
||||
// Override from command line.
|
||||
memprof_parser.ParseStringFromEnv("MEMPROF_OPTIONS");
|
||||
|
||||
InitializeCommonFlags();
|
||||
|
||||
if (Verbosity())
|
||||
ReportUnrecognizedFlags();
|
||||
|
||||
if (common_flags()->help) {
|
||||
memprof_parser.PrintFlagDescriptions();
|
||||
}
|
||||
|
||||
CHECK_LE((uptr)common_flags()->malloc_context_size, kStackTraceMax);
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
SANITIZER_INTERFACE_WEAK_DEF(const char *, __memprof_default_options, void) {
|
||||
return "";
|
||||
}
|
||||
45
compiler-rt/lib/memprof/memprof_flags.h
Normal file
45
compiler-rt/lib/memprof/memprof_flags.h
Normal file
@ -0,0 +1,45 @@
|
||||
//===-- memprof_flags.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 runtime flags.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef MEMPROF_FLAGS_H
|
||||
#define MEMPROF_FLAGS_H
|
||||
|
||||
#include "sanitizer_common/sanitizer_flag_parser.h"
|
||||
#include "sanitizer_common/sanitizer_internal_defs.h"
|
||||
|
||||
// MemProf flag values can be defined in four ways:
|
||||
// 1) initialized with default values at startup.
|
||||
// 2) overriden during compilation of MemProf runtime by providing
|
||||
// compile definition MEMPROF_DEFAULT_OPTIONS.
|
||||
// 3) overriden from string returned by user-specified function
|
||||
// __memprof_default_options().
|
||||
// 4) overriden from env variable MEMPROF_OPTIONS.
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
struct Flags {
|
||||
#define MEMPROF_FLAG(Type, Name, DefaultValue, Description) Type Name;
|
||||
#include "memprof_flags.inc"
|
||||
#undef MEMPROF_FLAG
|
||||
|
||||
void SetDefaults();
|
||||
};
|
||||
|
||||
extern Flags memprof_flags_dont_use_directly;
|
||||
inline Flags *flags() { return &memprof_flags_dont_use_directly; }
|
||||
|
||||
void InitializeFlags();
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_FLAGS_H
|
||||
49
compiler-rt/lib/memprof/memprof_flags.inc
Normal file
49
compiler-rt/lib/memprof/memprof_flags.inc
Normal file
@ -0,0 +1,49 @@
|
||||
//===-- memprof_flags.inc --------------------------------------*- 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
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
//
|
||||
// MemProf runtime flags.
|
||||
//
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_FLAG
|
||||
#error "Define MEMPROF_FLAG prior to including this file!"
|
||||
#endif
|
||||
|
||||
// MEMPROF_FLAG(Type, Name, DefaultValue, Description)
|
||||
// See COMMON_FLAG in sanitizer_flags.inc for more details.
|
||||
|
||||
MEMPROF_FLAG(bool, unmap_shadow_on_exit, false,
|
||||
"If set, explicitly unmaps the (huge) shadow at exit.")
|
||||
MEMPROF_FLAG(bool, protect_shadow_gap, true, "If set, mprotect the shadow gap")
|
||||
MEMPROF_FLAG(bool, print_legend, true, "Print the legend for the shadow bytes.")
|
||||
MEMPROF_FLAG(bool, atexit, false,
|
||||
"If set, prints MemProf exit stats even after program terminates "
|
||||
"successfully.")
|
||||
MEMPROF_FLAG(
|
||||
bool, print_full_thread_history, true,
|
||||
"If set, prints thread creation stacks for the threads involved in the "
|
||||
"report and their ancestors up to the main thread.")
|
||||
|
||||
MEMPROF_FLAG(bool, halt_on_error, true,
|
||||
"Crash the program after printing the first error report "
|
||||
"(WARNING: USE AT YOUR OWN RISK!)")
|
||||
MEMPROF_FLAG(bool, allocator_frees_and_returns_null_on_realloc_zero, true,
|
||||
"realloc(p, 0) is equivalent to free(p) by default (Same as the "
|
||||
"POSIX standard). If set to false, realloc(p, 0) will return a "
|
||||
"pointer to an allocated space which can not be used.")
|
||||
MEMPROF_FLAG(bool, print_terse, false,
|
||||
"If set, prints memory profile in a terse format.")
|
||||
|
||||
MEMPROF_FLAG(
|
||||
int, mem_info_cache_entries, 16381,
|
||||
"Size in entries of the mem info block cache, should be closest prime"
|
||||
" number to a power of two for best hashing.")
|
||||
MEMPROF_FLAG(bool, print_mem_info_cache_miss_rate, false,
|
||||
"If set, prints the miss rate of the mem info block cache.")
|
||||
MEMPROF_FLAG(
|
||||
bool, print_mem_info_cache_miss_rate_details, false,
|
||||
"If set, prints detailed miss rates of the mem info block cache sets.")
|
||||
26
compiler-rt/lib/memprof/memprof_init_version.h
Normal file
26
compiler-rt/lib/memprof/memprof_init_version.h
Normal file
@ -0,0 +1,26 @@
|
||||
//===-- memprof_init_version.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.
|
||||
//
|
||||
// This header defines a versioned __memprof_init function to be called at the
|
||||
// startup of the instrumented program.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_INIT_VERSION_H
|
||||
#define MEMPROF_INIT_VERSION_H
|
||||
|
||||
#include "sanitizer_common/sanitizer_platform.h"
|
||||
|
||||
extern "C" {
|
||||
// Every time the Memprof ABI changes we also change the version number in the
|
||||
// __memprof_init function name. Objects built with incompatible Memprof ABI
|
||||
// versions will not link with run-time.
|
||||
#define __memprof_version_mismatch_check __memprof_version_mismatch_check_v1
|
||||
}
|
||||
|
||||
#endif // MEMPROF_INIT_VERSION_H
|
||||
366
compiler-rt/lib/memprof/memprof_interceptors.cpp
Normal file
366
compiler-rt/lib/memprof/memprof_interceptors.cpp
Normal file
@ -0,0 +1,366 @@
|
||||
//===-- memprof_interceptors.cpp -----------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Intercept various libc functions.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_mapping.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "memprof_stats.h"
|
||||
#include "sanitizer_common/sanitizer_libc.h"
|
||||
#include "sanitizer_common/sanitizer_posix.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
#define MEMPROF_READ_STRING(s, n) MEMPROF_READ_RANGE((s), (n))
|
||||
|
||||
static inline uptr MaybeRealStrnlen(const char *s, uptr maxlen) {
|
||||
#if SANITIZER_INTERCEPT_STRNLEN
|
||||
if (REAL(strnlen)) {
|
||||
return REAL(strnlen)(s, maxlen);
|
||||
}
|
||||
#endif
|
||||
return internal_strnlen(s, maxlen);
|
||||
}
|
||||
|
||||
void SetThreadName(const char *name) {
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
if (t)
|
||||
memprofThreadRegistry().SetThreadName(t->tid(), name);
|
||||
}
|
||||
|
||||
int OnExit() {
|
||||
// FIXME: ask frontend whether we need to return failure.
|
||||
return 0;
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
// ---------------------- Wrappers ---------------- {{{1
|
||||
using namespace __memprof;
|
||||
|
||||
DECLARE_REAL_AND_INTERCEPTOR(void *, malloc, uptr)
|
||||
DECLARE_REAL_AND_INTERCEPTOR(void, free, void *)
|
||||
|
||||
#define MEMPROF_INTERCEPTOR_ENTER(ctx, func) \
|
||||
ctx = 0; \
|
||||
(void)ctx;
|
||||
|
||||
#define COMMON_INTERCEPT_FUNCTION(name) MEMPROF_INTERCEPT_FUNC(name)
|
||||
#define COMMON_INTERCEPT_FUNCTION_VER(name, ver) \
|
||||
MEMPROF_INTERCEPT_FUNC_VER(name, ver)
|
||||
#define COMMON_INTERCEPTOR_WRITE_RANGE(ctx, ptr, size) \
|
||||
MEMPROF_WRITE_RANGE(ptr, size)
|
||||
#define COMMON_INTERCEPTOR_READ_RANGE(ctx, ptr, size) \
|
||||
MEMPROF_READ_RANGE(ptr, size)
|
||||
#define COMMON_INTERCEPTOR_ENTER(ctx, func, ...) \
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, func); \
|
||||
do { \
|
||||
if (memprof_init_is_running) \
|
||||
return REAL(func)(__VA_ARGS__); \
|
||||
ENSURE_MEMPROF_INITED(); \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_DIR_ACQUIRE(ctx, path) \
|
||||
do { \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_FD_ACQUIRE(ctx, fd) \
|
||||
do { \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_FD_RELEASE(ctx, fd) \
|
||||
do { \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_FD_SOCKET_ACCEPT(ctx, fd, newfd) \
|
||||
do { \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_SET_THREAD_NAME(ctx, name) SetThreadName(name)
|
||||
// Should be memprofThreadRegistry().SetThreadNameByUserId(thread, name)
|
||||
// But memprof does not remember UserId's for threads (pthread_t);
|
||||
// and remembers all ever existed threads, so the linear search by UserId
|
||||
// can be slow.
|
||||
#define COMMON_INTERCEPTOR_SET_PTHREAD_NAME(ctx, thread, name) \
|
||||
do { \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_BLOCK_REAL(name) REAL(name)
|
||||
#define COMMON_INTERCEPTOR_ON_DLOPEN(filename, flag) \
|
||||
do { \
|
||||
CheckNoDeepBind(filename, flag); \
|
||||
} while (false)
|
||||
#define COMMON_INTERCEPTOR_ON_EXIT(ctx) OnExit()
|
||||
#define COMMON_INTERCEPTOR_LIBRARY_LOADED(filename, handle)
|
||||
#define COMMON_INTERCEPTOR_LIBRARY_UNLOADED()
|
||||
#define COMMON_INTERCEPTOR_NOTHING_IS_INITIALIZED (!memprof_inited)
|
||||
#define COMMON_INTERCEPTOR_GET_TLS_RANGE(begin, end) \
|
||||
if (MemprofThread *t = GetCurrentThread()) { \
|
||||
*begin = t->tls_begin(); \
|
||||
*end = t->tls_end(); \
|
||||
} else { \
|
||||
*begin = *end = 0; \
|
||||
}
|
||||
|
||||
#define COMMON_INTERCEPTOR_MEMMOVE_IMPL(ctx, to, from, size) \
|
||||
do { \
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, memmove); \
|
||||
MEMPROF_MEMMOVE_IMPL(to, from, size); \
|
||||
} while (false)
|
||||
|
||||
#define COMMON_INTERCEPTOR_MEMCPY_IMPL(ctx, to, from, size) \
|
||||
do { \
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, memcpy); \
|
||||
MEMPROF_MEMCPY_IMPL(to, from, size); \
|
||||
} while (false)
|
||||
|
||||
#define COMMON_INTERCEPTOR_MEMSET_IMPL(ctx, block, c, size) \
|
||||
do { \
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, memset); \
|
||||
MEMPROF_MEMSET_IMPL(block, c, size); \
|
||||
} while (false)
|
||||
|
||||
#include "sanitizer_common/sanitizer_common_interceptors.inc"
|
||||
|
||||
#define COMMON_SYSCALL_PRE_READ_RANGE(p, s) MEMPROF_READ_RANGE(p, s)
|
||||
#define COMMON_SYSCALL_PRE_WRITE_RANGE(p, s) MEMPROF_WRITE_RANGE(p, s)
|
||||
#define COMMON_SYSCALL_POST_READ_RANGE(p, s) \
|
||||
do { \
|
||||
(void)(p); \
|
||||
(void)(s); \
|
||||
} while (false)
|
||||
#define COMMON_SYSCALL_POST_WRITE_RANGE(p, s) \
|
||||
do { \
|
||||
(void)(p); \
|
||||
(void)(s); \
|
||||
} while (false)
|
||||
#include "sanitizer_common/sanitizer_common_syscalls.inc"
|
||||
|
||||
struct ThreadStartParam {
|
||||
atomic_uintptr_t t;
|
||||
atomic_uintptr_t is_registered;
|
||||
};
|
||||
|
||||
static thread_return_t THREAD_CALLING_CONV memprof_thread_start(void *arg) {
|
||||
ThreadStartParam *param = reinterpret_cast<ThreadStartParam *>(arg);
|
||||
MemprofThread *t = nullptr;
|
||||
while ((t = reinterpret_cast<MemprofThread *>(
|
||||
atomic_load(¶m->t, memory_order_acquire))) == nullptr)
|
||||
internal_sched_yield();
|
||||
SetCurrentThread(t);
|
||||
return t->ThreadStart(GetTid(), ¶m->is_registered);
|
||||
}
|
||||
|
||||
INTERCEPTOR(int, pthread_create, void *thread, void *attr,
|
||||
void *(*start_routine)(void *), void *arg) {
|
||||
EnsureMainThreadIDIsCorrect();
|
||||
GET_STACK_TRACE_THREAD;
|
||||
int detached = 0;
|
||||
if (attr)
|
||||
REAL(pthread_attr_getdetachstate)(attr, &detached);
|
||||
ThreadStartParam param;
|
||||
atomic_store(¶m.t, 0, memory_order_relaxed);
|
||||
atomic_store(¶m.is_registered, 0, memory_order_relaxed);
|
||||
int result;
|
||||
{
|
||||
// Ignore all allocations made by pthread_create: thread stack/TLS may be
|
||||
// stored by pthread for future reuse even after thread destruction, and
|
||||
// the linked list it's stored in doesn't even hold valid pointers to the
|
||||
// objects, the latter are calculated by obscure pointer arithmetic.
|
||||
result = REAL(pthread_create)(thread, attr, memprof_thread_start, ¶m);
|
||||
}
|
||||
if (result == 0) {
|
||||
u32 current_tid = GetCurrentTidOrInvalid();
|
||||
MemprofThread *t = MemprofThread::Create(start_routine, arg, current_tid,
|
||||
&stack, detached);
|
||||
atomic_store(¶m.t, reinterpret_cast<uptr>(t), memory_order_release);
|
||||
// Wait until the MemprofThread object is initialized and the
|
||||
// ThreadRegistry entry is in "started" state.
|
||||
while (atomic_load(¶m.is_registered, memory_order_acquire) == 0)
|
||||
internal_sched_yield();
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
INTERCEPTOR(int, pthread_join, void *t, void **arg) {
|
||||
return real_pthread_join(t, arg);
|
||||
}
|
||||
|
||||
DEFINE_REAL_PTHREAD_FUNCTIONS
|
||||
|
||||
INTERCEPTOR(char *, index, const char *string, int c)
|
||||
ALIAS(WRAPPER_NAME(strchr));
|
||||
|
||||
// For both strcat() and strncat() we need to check the validity of |to|
|
||||
// argument irrespective of the |from| length.
|
||||
INTERCEPTOR(char *, strcat, char *to, const char *from) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strcat);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr from_length = REAL(strlen)(from);
|
||||
MEMPROF_READ_RANGE(from, from_length + 1);
|
||||
uptr to_length = REAL(strlen)(to);
|
||||
MEMPROF_READ_STRING(to, to_length);
|
||||
MEMPROF_WRITE_RANGE(to + to_length, from_length + 1);
|
||||
return REAL(strcat)(to, from);
|
||||
}
|
||||
|
||||
INTERCEPTOR(char *, strncat, char *to, const char *from, uptr size) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strncat);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr from_length = MaybeRealStrnlen(from, size);
|
||||
uptr copy_length = Min(size, from_length + 1);
|
||||
MEMPROF_READ_RANGE(from, copy_length);
|
||||
uptr to_length = REAL(strlen)(to);
|
||||
MEMPROF_READ_STRING(to, to_length);
|
||||
MEMPROF_WRITE_RANGE(to + to_length, from_length + 1);
|
||||
return REAL(strncat)(to, from, size);
|
||||
}
|
||||
|
||||
INTERCEPTOR(char *, strcpy, char *to, const char *from) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strcpy);
|
||||
if (memprof_init_is_running) {
|
||||
return REAL(strcpy)(to, from);
|
||||
}
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr from_size = REAL(strlen)(from) + 1;
|
||||
MEMPROF_READ_RANGE(from, from_size);
|
||||
MEMPROF_WRITE_RANGE(to, from_size);
|
||||
return REAL(strcpy)(to, from);
|
||||
}
|
||||
|
||||
INTERCEPTOR(char *, strdup, const char *s) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strdup);
|
||||
if (UNLIKELY(!memprof_inited))
|
||||
return internal_strdup(s);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr length = REAL(strlen)(s);
|
||||
MEMPROF_READ_RANGE(s, length + 1);
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
void *new_mem = memprof_malloc(length + 1, &stack);
|
||||
REAL(memcpy)(new_mem, s, length + 1);
|
||||
return reinterpret_cast<char *>(new_mem);
|
||||
}
|
||||
|
||||
INTERCEPTOR(char *, __strdup, const char *s) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strdup);
|
||||
if (UNLIKELY(!memprof_inited))
|
||||
return internal_strdup(s);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr length = REAL(strlen)(s);
|
||||
MEMPROF_READ_RANGE(s, length + 1);
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
void *new_mem = memprof_malloc(length + 1, &stack);
|
||||
REAL(memcpy)(new_mem, s, length + 1);
|
||||
return reinterpret_cast<char *>(new_mem);
|
||||
}
|
||||
|
||||
INTERCEPTOR(char *, strncpy, char *to, const char *from, uptr size) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strncpy);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
uptr from_size = Min(size, MaybeRealStrnlen(from, size) + 1);
|
||||
MEMPROF_READ_RANGE(from, from_size);
|
||||
MEMPROF_WRITE_RANGE(to, size);
|
||||
return REAL(strncpy)(to, from, size);
|
||||
}
|
||||
|
||||
INTERCEPTOR(long, strtol, const char *nptr, char **endptr, int base) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strtol);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
char *real_endptr;
|
||||
long result = REAL(strtol)(nptr, &real_endptr, base);
|
||||
StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
|
||||
return result;
|
||||
}
|
||||
|
||||
INTERCEPTOR(int, atoi, const char *nptr) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, atoi);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
char *real_endptr;
|
||||
// "man atoi" tells that behavior of atoi(nptr) is the same as
|
||||
// strtol(nptr, 0, 10), i.e. it sets errno to ERANGE if the
|
||||
// parsed integer can't be stored in *long* type (even if it's
|
||||
// different from int). So, we just imitate this behavior.
|
||||
int result = REAL(strtol)(nptr, &real_endptr, 10);
|
||||
FixRealStrtolEndptr(nptr, &real_endptr);
|
||||
MEMPROF_READ_STRING(nptr, (real_endptr - nptr) + 1);
|
||||
return result;
|
||||
}
|
||||
|
||||
INTERCEPTOR(long, atol, const char *nptr) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, atol);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
char *real_endptr;
|
||||
long result = REAL(strtol)(nptr, &real_endptr, 10);
|
||||
FixRealStrtolEndptr(nptr, &real_endptr);
|
||||
MEMPROF_READ_STRING(nptr, (real_endptr - nptr) + 1);
|
||||
return result;
|
||||
}
|
||||
|
||||
INTERCEPTOR(long long, strtoll, const char *nptr, char **endptr, int base) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, strtoll);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
char *real_endptr;
|
||||
long long result = REAL(strtoll)(nptr, &real_endptr, base);
|
||||
StrtolFixAndCheck(ctx, nptr, endptr, real_endptr, base);
|
||||
return result;
|
||||
}
|
||||
|
||||
INTERCEPTOR(long long, atoll, const char *nptr) {
|
||||
void *ctx;
|
||||
MEMPROF_INTERCEPTOR_ENTER(ctx, atoll);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
char *real_endptr;
|
||||
long long result = REAL(strtoll)(nptr, &real_endptr, 10);
|
||||
FixRealStrtolEndptr(nptr, &real_endptr);
|
||||
MEMPROF_READ_STRING(nptr, (real_endptr - nptr) + 1);
|
||||
return result;
|
||||
}
|
||||
|
||||
// ---------------------- InitializeMemprofInterceptors ---------------- {{{1
|
||||
namespace __memprof {
|
||||
void InitializeMemprofInterceptors() {
|
||||
static bool was_called_once;
|
||||
CHECK(!was_called_once);
|
||||
was_called_once = true;
|
||||
InitializeCommonInterceptors();
|
||||
|
||||
// Intercept str* functions.
|
||||
MEMPROF_INTERCEPT_FUNC(strcat);
|
||||
MEMPROF_INTERCEPT_FUNC(strcpy);
|
||||
MEMPROF_INTERCEPT_FUNC(strncat);
|
||||
MEMPROF_INTERCEPT_FUNC(strncpy);
|
||||
MEMPROF_INTERCEPT_FUNC(strdup);
|
||||
MEMPROF_INTERCEPT_FUNC(__strdup);
|
||||
MEMPROF_INTERCEPT_FUNC(index);
|
||||
|
||||
MEMPROF_INTERCEPT_FUNC(atoi);
|
||||
MEMPROF_INTERCEPT_FUNC(atol);
|
||||
MEMPROF_INTERCEPT_FUNC(strtol);
|
||||
MEMPROF_INTERCEPT_FUNC(atoll);
|
||||
MEMPROF_INTERCEPT_FUNC(strtoll);
|
||||
|
||||
// Intercept threading-related functions
|
||||
MEMPROF_INTERCEPT_FUNC(pthread_create);
|
||||
MEMPROF_INTERCEPT_FUNC(pthread_join);
|
||||
|
||||
InitializePlatformInterceptors();
|
||||
|
||||
VReport(1, "MemProfiler: libc interceptors initialized\n");
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
54
compiler-rt/lib/memprof/memprof_interceptors.h
Normal file
54
compiler-rt/lib/memprof/memprof_interceptors.h
Normal file
@ -0,0 +1,54 @@
|
||||
//===-- 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
|
||||
@ -0,0 +1,29 @@
|
||||
//===-- memprof_interceptors_memintrinsics.cpp ---------------------------===//
|
||||
//
|
||||
// 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 versions of memcpy, memmove, and memset.
|
||||
//===---------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_interceptors_memintrinsics.h"
|
||||
#include "memprof_stack.h"
|
||||
|
||||
using namespace __memprof;
|
||||
|
||||
void *__memprof_memcpy(void *to, const void *from, uptr size) {
|
||||
MEMPROF_MEMCPY_IMPL(to, from, size);
|
||||
}
|
||||
|
||||
void *__memprof_memset(void *block, int c, uptr size) {
|
||||
MEMPROF_MEMSET_IMPL(block, c, size);
|
||||
}
|
||||
|
||||
void *__memprof_memmove(void *to, const void *from, uptr size) {
|
||||
MEMPROF_MEMMOVE_IMPL(to, from, size);
|
||||
}
|
||||
79
compiler-rt/lib/memprof/memprof_interceptors_memintrinsics.h
Normal file
79
compiler-rt/lib/memprof/memprof_interceptors_memintrinsics.h
Normal file
@ -0,0 +1,79 @@
|
||||
//===-- memprof_interceptors_memintrinsics.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_memintrinsics.cpp
|
||||
//===---------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_MEMINTRIN_H
|
||||
#define MEMPROF_MEMINTRIN_H
|
||||
|
||||
#include "interception/interception.h"
|
||||
#include "memprof_interface_internal.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_mapping.h"
|
||||
|
||||
DECLARE_REAL(void *, memcpy, void *to, const void *from, uptr size)
|
||||
DECLARE_REAL(void *, memset, void *block, int c, uptr size)
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
// We implement ACCESS_MEMORY_RANGE, MEMPROF_READ_RANGE,
|
||||
// and MEMPROF_WRITE_RANGE as macro instead of function so
|
||||
// that no extra frames are created, and stack trace contains
|
||||
// relevant information only.
|
||||
#define ACCESS_MEMORY_RANGE(offset, size) \
|
||||
do { \
|
||||
__memprof_record_access_range(offset, size); \
|
||||
} while (0)
|
||||
|
||||
// memcpy is called during __memprof_init() from the internals of printf(...).
|
||||
// We do not treat memcpy with to==from as a bug.
|
||||
// See http://llvm.org/bugs/show_bug.cgi?id=11763.
|
||||
#define MEMPROF_MEMCPY_IMPL(to, from, size) \
|
||||
do { \
|
||||
if (UNLIKELY(!memprof_inited)) \
|
||||
return internal_memcpy(to, from, size); \
|
||||
if (memprof_init_is_running) { \
|
||||
return REAL(memcpy)(to, from, size); \
|
||||
} \
|
||||
ENSURE_MEMPROF_INITED(); \
|
||||
MEMPROF_READ_RANGE(from, size); \
|
||||
MEMPROF_WRITE_RANGE(to, size); \
|
||||
return REAL(memcpy)(to, from, size); \
|
||||
} while (0)
|
||||
|
||||
// memset is called inside Printf.
|
||||
#define MEMPROF_MEMSET_IMPL(block, c, size) \
|
||||
do { \
|
||||
if (UNLIKELY(!memprof_inited)) \
|
||||
return internal_memset(block, c, size); \
|
||||
if (memprof_init_is_running) { \
|
||||
return REAL(memset)(block, c, size); \
|
||||
} \
|
||||
ENSURE_MEMPROF_INITED(); \
|
||||
MEMPROF_WRITE_RANGE(block, size); \
|
||||
return REAL(memset)(block, c, size); \
|
||||
} while (0)
|
||||
|
||||
#define MEMPROF_MEMMOVE_IMPL(to, from, size) \
|
||||
do { \
|
||||
if (UNLIKELY(!memprof_inited)) \
|
||||
return internal_memmove(to, from, size); \
|
||||
ENSURE_MEMPROF_INITED(); \
|
||||
MEMPROF_READ_RANGE(from, size); \
|
||||
MEMPROF_WRITE_RANGE(to, size); \
|
||||
return internal_memmove(to, from, size); \
|
||||
} while (0)
|
||||
|
||||
#define MEMPROF_READ_RANGE(offset, size) ACCESS_MEMORY_RANGE(offset, size)
|
||||
#define MEMPROF_WRITE_RANGE(offset, size) ACCESS_MEMORY_RANGE(offset, size)
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_MEMINTRIN_H
|
||||
60
compiler-rt/lib/memprof/memprof_interface_internal.h
Normal file
60
compiler-rt/lib/memprof/memprof_interface_internal.h
Normal file
@ -0,0 +1,60 @@
|
||||
//===-- memprof_interface_internal.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.
|
||||
//
|
||||
// This header declares the MemProfiler runtime interface functions.
|
||||
// The runtime library has to define these functions so the instrumented program
|
||||
// could call them.
|
||||
//
|
||||
// See also include/sanitizer/memprof_interface.h
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_INTERFACE_INTERNAL_H
|
||||
#define MEMPROF_INTERFACE_INTERNAL_H
|
||||
|
||||
#include "sanitizer_common/sanitizer_internal_defs.h"
|
||||
|
||||
#include "memprof_init_version.h"
|
||||
|
||||
using __sanitizer::u32;
|
||||
using __sanitizer::u64;
|
||||
using __sanitizer::uptr;
|
||||
|
||||
extern "C" {
|
||||
// This function should be called at the very beginning of the process,
|
||||
// before any instrumented code is executed and before any call to malloc.
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_init();
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_preinit();
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_version_mismatch_check_v1();
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void __memprof_record_access(void const volatile *addr);
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void __memprof_record_access_range(void const volatile *addr, uptr size);
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_print_accumulated_stats();
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
const char *__memprof_default_options();
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
extern uptr __memprof_shadow_memory_dynamic_address;
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_load(uptr p);
|
||||
SANITIZER_INTERFACE_ATTRIBUTE void __memprof_store(uptr p);
|
||||
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void *__memprof_memcpy(void *dst, const void *src, uptr size);
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void *__memprof_memset(void *s, int c, uptr n);
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void *__memprof_memmove(void *dest, const void *src, uptr n);
|
||||
} // extern "C"
|
||||
|
||||
#endif // MEMPROF_INTERFACE_INTERNAL_H
|
||||
104
compiler-rt/lib/memprof/memprof_internal.h
Normal file
104
compiler-rt/lib/memprof/memprof_internal.h
Normal file
@ -0,0 +1,104 @@
|
||||
//===-- memprof_internal.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 which defines various general utilities.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_INTERNAL_H
|
||||
#define MEMPROF_INTERNAL_H
|
||||
|
||||
#include "memprof_flags.h"
|
||||
#include "memprof_interface_internal.h"
|
||||
#include "sanitizer_common/sanitizer_common.h"
|
||||
#include "sanitizer_common/sanitizer_internal_defs.h"
|
||||
#include "sanitizer_common/sanitizer_libc.h"
|
||||
#include "sanitizer_common/sanitizer_stacktrace.h"
|
||||
|
||||
#if __has_feature(address_sanitizer) || defined(__SANITIZE_ADDRESS__)
|
||||
#error "The MemProfiler run-time should not be instrumented by MemProfiler"
|
||||
#endif
|
||||
|
||||
// Build-time configuration options.
|
||||
|
||||
// If set, memprof will intercept C++ exception api call(s).
|
||||
#ifndef MEMPROF_HAS_EXCEPTIONS
|
||||
#define MEMPROF_HAS_EXCEPTIONS 1
|
||||
#endif
|
||||
|
||||
#ifndef MEMPROF_DYNAMIC
|
||||
#ifdef PIC
|
||||
#define MEMPROF_DYNAMIC 1
|
||||
#else
|
||||
#define MEMPROF_DYNAMIC 0
|
||||
#endif
|
||||
#endif
|
||||
|
||||
// All internal functions in memprof reside inside the __memprof namespace
|
||||
// to avoid namespace collisions with the user programs.
|
||||
// Separate namespace also makes it simpler to distinguish the memprof
|
||||
// run-time functions from the instrumented user code in a profile.
|
||||
namespace __memprof {
|
||||
|
||||
class MemprofThread;
|
||||
using __sanitizer::StackTrace;
|
||||
|
||||
void MemprofInitFromRtl();
|
||||
|
||||
// memprof_rtl.cpp
|
||||
void PrintAddressSpaceLayout();
|
||||
|
||||
// memprof_shadow_setup.cpp
|
||||
void InitializeShadowMemory();
|
||||
|
||||
// memprof_malloc_linux.cpp
|
||||
void ReplaceSystemMalloc();
|
||||
|
||||
// memprof_linux.cpp
|
||||
uptr FindDynamicShadowStart();
|
||||
void *MemprofDoesNotSupportStaticLinkage();
|
||||
|
||||
// memprof_thread.cpp
|
||||
MemprofThread *CreateMainThread();
|
||||
|
||||
void ReadContextStack(void *context, uptr *stack, uptr *ssize);
|
||||
|
||||
// Wrapper for TLS/TSD.
|
||||
void TSDInit(void (*destructor)(void *tsd));
|
||||
void *TSDGet();
|
||||
void TSDSet(void *tsd);
|
||||
void PlatformTSDDtor(void *tsd);
|
||||
|
||||
void *MemprofDlSymNext(const char *sym);
|
||||
|
||||
// Add convenient macro for interface functions that may be represented as
|
||||
// weak hooks.
|
||||
#define MEMPROF_MALLOC_HOOK(ptr, size) \
|
||||
do { \
|
||||
if (&__sanitizer_malloc_hook) \
|
||||
__sanitizer_malloc_hook(ptr, size); \
|
||||
RunMallocHooks(ptr, size); \
|
||||
} while (false)
|
||||
#define MEMPROF_FREE_HOOK(ptr) \
|
||||
do { \
|
||||
if (&__sanitizer_free_hook) \
|
||||
__sanitizer_free_hook(ptr); \
|
||||
RunFreeHooks(ptr); \
|
||||
} while (false)
|
||||
|
||||
extern int memprof_inited;
|
||||
extern int memprof_timestamp_inited;
|
||||
extern int memprof_init_done;
|
||||
// Used to avoid infinite recursion in __memprof_init().
|
||||
extern bool memprof_init_is_running;
|
||||
extern void (*death_callback)(void);
|
||||
extern long memprof_init_timestamp_s;
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_INTERNAL_H
|
||||
78
compiler-rt/lib/memprof/memprof_linux.cpp
Normal file
78
compiler-rt/lib/memprof/memprof_linux.cpp
Normal file
@ -0,0 +1,78 @@
|
||||
//===-- memprof_linux.cpp ------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Linux-specific details.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "sanitizer_common/sanitizer_platform.h"
|
||||
#if !SANITIZER_LINUX
|
||||
#error Unsupported OS
|
||||
#endif
|
||||
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_flags.h"
|
||||
#include "sanitizer_common/sanitizer_freebsd.h"
|
||||
#include "sanitizer_common/sanitizer_libc.h"
|
||||
#include "sanitizer_common/sanitizer_procmaps.h"
|
||||
|
||||
#include <dlfcn.h>
|
||||
#include <fcntl.h>
|
||||
#include <limits.h>
|
||||
#include <link.h>
|
||||
#include <pthread.h>
|
||||
#include <stdio.h>
|
||||
#include <sys/mman.h>
|
||||
#include <sys/resource.h>
|
||||
#include <sys/syscall.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/ucontext.h>
|
||||
#include <unistd.h>
|
||||
#include <unwind.h>
|
||||
|
||||
typedef enum {
|
||||
MEMPROF_RT_VERSION_UNDEFINED = 0,
|
||||
MEMPROF_RT_VERSION_DYNAMIC,
|
||||
MEMPROF_RT_VERSION_STATIC,
|
||||
} memprof_rt_version_t;
|
||||
|
||||
// FIXME: perhaps also store abi version here?
|
||||
extern "C" {
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
memprof_rt_version_t __memprof_rt_version;
|
||||
}
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
void InitializePlatformInterceptors() {}
|
||||
void InitializePlatformExceptionHandlers() {}
|
||||
|
||||
void *MemprofDoesNotSupportStaticLinkage() {
|
||||
// This will fail to link with -static.
|
||||
return &_DYNAMIC; // defined in link.h
|
||||
}
|
||||
|
||||
uptr FindDynamicShadowStart() {
|
||||
uptr shadow_size_bytes = MemToShadowSize(kHighMemEnd);
|
||||
return MapDynamicShadow(shadow_size_bytes, SHADOW_SCALE,
|
||||
/*min_shadow_base_alignment*/ 0, kHighMemEnd);
|
||||
}
|
||||
|
||||
void ReadContextStack(void *context, uptr *stack, uptr *ssize) {
|
||||
ucontext_t *ucp = (ucontext_t *)context;
|
||||
*stack = (uptr)ucp->uc_stack.ss_sp;
|
||||
*ssize = ucp->uc_stack.ss_size;
|
||||
}
|
||||
|
||||
void *MemprofDlSymNext(const char *sym) { return dlsym(RTLD_NEXT, sym); }
|
||||
|
||||
} // namespace __memprof
|
||||
226
compiler-rt/lib/memprof/memprof_malloc_linux.cpp
Normal file
226
compiler-rt/lib/memprof/memprof_malloc_linux.cpp
Normal file
@ -0,0 +1,226 @@
|
||||
//===-- memprof_malloc_linux.cpp -----------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Linux-specific malloc interception.
|
||||
// We simply define functions like malloc, free, realloc, etc.
|
||||
// They will replace the corresponding libc functions automagically.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "sanitizer_common/sanitizer_platform.h"
|
||||
#if !SANITIZER_LINUX
|
||||
#error Unsupported OS
|
||||
#endif
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "sanitizer_common/sanitizer_allocator_checks.h"
|
||||
#include "sanitizer_common/sanitizer_errno.h"
|
||||
#include "sanitizer_common/sanitizer_tls_get_addr.h"
|
||||
|
||||
// ---------------------- Replacement functions ---------------- {{{1
|
||||
using namespace __memprof;
|
||||
|
||||
static uptr allocated_for_dlsym;
|
||||
static uptr last_dlsym_alloc_size_in_words;
|
||||
static const uptr kDlsymAllocPoolSize = 1024;
|
||||
static uptr alloc_memory_for_dlsym[kDlsymAllocPoolSize];
|
||||
|
||||
static inline bool IsInDlsymAllocPool(const void *ptr) {
|
||||
uptr off = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
|
||||
return off < allocated_for_dlsym * sizeof(alloc_memory_for_dlsym[0]);
|
||||
}
|
||||
|
||||
static void *AllocateFromLocalPool(uptr size_in_bytes) {
|
||||
uptr size_in_words = RoundUpTo(size_in_bytes, kWordSize) / kWordSize;
|
||||
void *mem = (void *)&alloc_memory_for_dlsym[allocated_for_dlsym];
|
||||
last_dlsym_alloc_size_in_words = size_in_words;
|
||||
allocated_for_dlsym += size_in_words;
|
||||
CHECK_LT(allocated_for_dlsym, kDlsymAllocPoolSize);
|
||||
return mem;
|
||||
}
|
||||
|
||||
static void DeallocateFromLocalPool(const void *ptr) {
|
||||
// Hack: since glibc 2.27 dlsym no longer uses stack-allocated memory to store
|
||||
// error messages and instead uses malloc followed by free. To avoid pool
|
||||
// exhaustion due to long object filenames, handle that special case here.
|
||||
uptr prev_offset = allocated_for_dlsym - last_dlsym_alloc_size_in_words;
|
||||
void *prev_mem = (void *)&alloc_memory_for_dlsym[prev_offset];
|
||||
if (prev_mem == ptr) {
|
||||
REAL(memset)(prev_mem, 0, last_dlsym_alloc_size_in_words * kWordSize);
|
||||
allocated_for_dlsym = prev_offset;
|
||||
last_dlsym_alloc_size_in_words = 0;
|
||||
}
|
||||
}
|
||||
|
||||
static int PosixMemalignFromLocalPool(void **memptr, uptr alignment,
|
||||
uptr size_in_bytes) {
|
||||
if (UNLIKELY(!CheckPosixMemalignAlignment(alignment)))
|
||||
return errno_EINVAL;
|
||||
|
||||
CHECK(alignment >= kWordSize);
|
||||
|
||||
uptr addr = (uptr)&alloc_memory_for_dlsym[allocated_for_dlsym];
|
||||
uptr aligned_addr = RoundUpTo(addr, alignment);
|
||||
uptr aligned_size = RoundUpTo(size_in_bytes, kWordSize);
|
||||
|
||||
uptr *end_mem = (uptr *)(aligned_addr + aligned_size);
|
||||
uptr allocated = end_mem - alloc_memory_for_dlsym;
|
||||
if (allocated >= kDlsymAllocPoolSize)
|
||||
return errno_ENOMEM;
|
||||
|
||||
allocated_for_dlsym = allocated;
|
||||
*memptr = (void *)aligned_addr;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static inline bool MaybeInDlsym() { return memprof_init_is_running; }
|
||||
|
||||
static inline bool UseLocalPool() { return MaybeInDlsym(); }
|
||||
|
||||
static void *ReallocFromLocalPool(void *ptr, uptr size) {
|
||||
const uptr offset = (uptr)ptr - (uptr)alloc_memory_for_dlsym;
|
||||
const uptr copy_size = Min(size, kDlsymAllocPoolSize - offset);
|
||||
void *new_ptr;
|
||||
if (UNLIKELY(UseLocalPool())) {
|
||||
new_ptr = AllocateFromLocalPool(size);
|
||||
} else {
|
||||
ENSURE_MEMPROF_INITED();
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
new_ptr = memprof_malloc(size, &stack);
|
||||
}
|
||||
internal_memcpy(new_ptr, ptr, copy_size);
|
||||
return new_ptr;
|
||||
}
|
||||
|
||||
INTERCEPTOR(void, free, void *ptr) {
|
||||
GET_STACK_TRACE_FREE;
|
||||
if (UNLIKELY(IsInDlsymAllocPool(ptr))) {
|
||||
DeallocateFromLocalPool(ptr);
|
||||
return;
|
||||
}
|
||||
memprof_free(ptr, &stack, FROM_MALLOC);
|
||||
}
|
||||
|
||||
#if SANITIZER_INTERCEPT_CFREE
|
||||
INTERCEPTOR(void, cfree, void *ptr) {
|
||||
GET_STACK_TRACE_FREE;
|
||||
if (UNLIKELY(IsInDlsymAllocPool(ptr)))
|
||||
return;
|
||||
memprof_free(ptr, &stack, FROM_MALLOC);
|
||||
}
|
||||
#endif // SANITIZER_INTERCEPT_CFREE
|
||||
|
||||
INTERCEPTOR(void *, malloc, uptr size) {
|
||||
if (UNLIKELY(UseLocalPool()))
|
||||
// Hack: dlsym calls malloc before REAL(malloc) is retrieved from dlsym.
|
||||
return AllocateFromLocalPool(size);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_malloc(size, &stack);
|
||||
}
|
||||
|
||||
INTERCEPTOR(void *, calloc, uptr nmemb, uptr size) {
|
||||
if (UNLIKELY(UseLocalPool()))
|
||||
// Hack: dlsym calls calloc before REAL(calloc) is retrieved from dlsym.
|
||||
return AllocateFromLocalPool(nmemb * size);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_calloc(nmemb, size, &stack);
|
||||
}
|
||||
|
||||
INTERCEPTOR(void *, realloc, void *ptr, uptr size) {
|
||||
if (UNLIKELY(IsInDlsymAllocPool(ptr)))
|
||||
return ReallocFromLocalPool(ptr, size);
|
||||
if (UNLIKELY(UseLocalPool()))
|
||||
return AllocateFromLocalPool(size);
|
||||
ENSURE_MEMPROF_INITED();
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_realloc(ptr, size, &stack);
|
||||
}
|
||||
|
||||
#if SANITIZER_INTERCEPT_REALLOCARRAY
|
||||
INTERCEPTOR(void *, reallocarray, void *ptr, uptr nmemb, uptr size) {
|
||||
ENSURE_MEMPROF_INITED();
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_reallocarray(ptr, nmemb, size, &stack);
|
||||
}
|
||||
#endif // SANITIZER_INTERCEPT_REALLOCARRAY
|
||||
|
||||
#if SANITIZER_INTERCEPT_MEMALIGN
|
||||
INTERCEPTOR(void *, memalign, uptr boundary, uptr size) {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_memalign(boundary, size, &stack, FROM_MALLOC);
|
||||
}
|
||||
|
||||
INTERCEPTOR(void *, __libc_memalign, uptr boundary, uptr size) {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
void *res = memprof_memalign(boundary, size, &stack, FROM_MALLOC);
|
||||
DTLS_on_libc_memalign(res, size);
|
||||
return res;
|
||||
}
|
||||
#endif // SANITIZER_INTERCEPT_MEMALIGN
|
||||
|
||||
#if SANITIZER_INTERCEPT_ALIGNED_ALLOC
|
||||
INTERCEPTOR(void *, aligned_alloc, uptr boundary, uptr size) {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_aligned_alloc(boundary, size, &stack);
|
||||
}
|
||||
#endif // SANITIZER_INTERCEPT_ALIGNED_ALLOC
|
||||
|
||||
INTERCEPTOR(uptr, malloc_usable_size, void *ptr) {
|
||||
GET_CURRENT_PC_BP_SP;
|
||||
(void)sp;
|
||||
return memprof_malloc_usable_size(ptr, pc, bp);
|
||||
}
|
||||
|
||||
#if SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
|
||||
// We avoid including malloc.h for portability reasons.
|
||||
// man mallinfo says the fields are "long", but the implementation uses int.
|
||||
// It doesn't matter much -- we just need to make sure that the libc's mallinfo
|
||||
// is not called.
|
||||
struct fake_mallinfo {
|
||||
int x[10];
|
||||
};
|
||||
|
||||
INTERCEPTOR(struct fake_mallinfo, mallinfo, void) {
|
||||
struct fake_mallinfo res;
|
||||
REAL(memset)(&res, 0, sizeof(res));
|
||||
return res;
|
||||
}
|
||||
|
||||
INTERCEPTOR(int, mallopt, int cmd, int value) { return 0; }
|
||||
#endif // SANITIZER_INTERCEPT_MALLOPT_AND_MALLINFO
|
||||
|
||||
INTERCEPTOR(int, posix_memalign, void **memptr, uptr alignment, uptr size) {
|
||||
if (UNLIKELY(UseLocalPool()))
|
||||
return PosixMemalignFromLocalPool(memptr, alignment, size);
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_posix_memalign(memptr, alignment, size, &stack);
|
||||
}
|
||||
|
||||
INTERCEPTOR(void *, valloc, uptr size) {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_valloc(size, &stack);
|
||||
}
|
||||
|
||||
#if SANITIZER_INTERCEPT_PVALLOC
|
||||
INTERCEPTOR(void *, pvalloc, uptr size) {
|
||||
GET_STACK_TRACE_MALLOC;
|
||||
return memprof_pvalloc(size, &stack);
|
||||
}
|
||||
#endif // SANITIZER_INTERCEPT_PVALLOC
|
||||
|
||||
INTERCEPTOR(void, malloc_stats, void) { __memprof_print_accumulated_stats(); }
|
||||
|
||||
namespace __memprof {
|
||||
void ReplaceSystemMalloc() {}
|
||||
} // namespace __memprof
|
||||
113
compiler-rt/lib/memprof/memprof_mapping.h
Normal file
113
compiler-rt/lib/memprof/memprof_mapping.h
Normal file
@ -0,0 +1,113 @@
|
||||
//===-- memprof_mapping.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.
|
||||
//
|
||||
// Defines MemProf memory mapping.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_MAPPING_H
|
||||
#define MEMPROF_MAPPING_H
|
||||
|
||||
#include "memprof_internal.h"
|
||||
|
||||
static const u64 kDefaultShadowScale = 3;
|
||||
#define SHADOW_SCALE kDefaultShadowScale
|
||||
|
||||
#define SHADOW_OFFSET __memprof_shadow_memory_dynamic_address
|
||||
|
||||
#define SHADOW_GRANULARITY (1ULL << SHADOW_SCALE)
|
||||
#define MEMPROF_ALIGNMENT 32
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
extern uptr kHighMemEnd; // Initialized in __memprof_init.
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#define SHADOW_ENTRY_SIZE 8
|
||||
|
||||
// Size of memory block mapped to a single shadow location
|
||||
#define MEM_GRANULARITY 64ULL
|
||||
|
||||
#define SHADOW_MASK ~(MEM_GRANULARITY - 1)
|
||||
|
||||
#define MEM_TO_SHADOW(mem) \
|
||||
(((mem & SHADOW_MASK) >> SHADOW_SCALE) + (SHADOW_OFFSET))
|
||||
|
||||
#define kLowMemBeg 0
|
||||
#define kLowMemEnd (SHADOW_OFFSET ? SHADOW_OFFSET - 1 : 0)
|
||||
|
||||
#define kLowShadowBeg SHADOW_OFFSET
|
||||
#define kLowShadowEnd (MEM_TO_SHADOW(kLowMemEnd) + SHADOW_ENTRY_SIZE - 1)
|
||||
|
||||
#define kHighMemBeg (MEM_TO_SHADOW(kHighMemEnd) + 1 + SHADOW_ENTRY_SIZE - 1)
|
||||
|
||||
#define kHighShadowBeg MEM_TO_SHADOW(kHighMemBeg)
|
||||
#define kHighShadowEnd (MEM_TO_SHADOW(kHighMemEnd) + SHADOW_ENTRY_SIZE - 1)
|
||||
|
||||
// With the zero shadow base we can not actually map pages starting from 0.
|
||||
// This constant is somewhat arbitrary.
|
||||
#define kZeroBaseShadowStart 0
|
||||
#define kZeroBaseMaxShadowStart (1 << 18)
|
||||
|
||||
#define kShadowGapBeg (kLowShadowEnd ? kLowShadowEnd + 1 : kZeroBaseShadowStart)
|
||||
#define kShadowGapEnd (kHighShadowBeg - 1)
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
inline uptr MemToShadowSize(uptr size) { return size >> SHADOW_SCALE; }
|
||||
inline bool AddrIsInLowMem(uptr a) { return a <= kLowMemEnd; }
|
||||
|
||||
inline bool AddrIsInLowShadow(uptr a) {
|
||||
return a >= kLowShadowBeg && a <= kLowShadowEnd;
|
||||
}
|
||||
|
||||
inline bool AddrIsInHighMem(uptr a) {
|
||||
return kHighMemBeg && a >= kHighMemBeg && a <= kHighMemEnd;
|
||||
}
|
||||
|
||||
inline bool AddrIsInHighShadow(uptr a) {
|
||||
return kHighMemBeg && a >= kHighShadowBeg && a <= kHighShadowEnd;
|
||||
}
|
||||
|
||||
inline bool AddrIsInShadowGap(uptr a) {
|
||||
// In zero-based shadow mode we treat addresses near zero as addresses
|
||||
// in shadow gap as well.
|
||||
if (SHADOW_OFFSET == 0)
|
||||
return a <= kShadowGapEnd;
|
||||
return a >= kShadowGapBeg && a <= kShadowGapEnd;
|
||||
}
|
||||
|
||||
inline bool AddrIsInMem(uptr a) {
|
||||
return AddrIsInLowMem(a) || AddrIsInHighMem(a) ||
|
||||
(flags()->protect_shadow_gap == 0 && AddrIsInShadowGap(a));
|
||||
}
|
||||
|
||||
inline uptr MemToShadow(uptr p) {
|
||||
CHECK(AddrIsInMem(p));
|
||||
return MEM_TO_SHADOW(p);
|
||||
}
|
||||
|
||||
inline bool AddrIsInShadow(uptr a) {
|
||||
return AddrIsInLowShadow(a) || AddrIsInHighShadow(a);
|
||||
}
|
||||
|
||||
inline bool AddrIsAlignedByGranularity(uptr a) {
|
||||
return (a & (SHADOW_GRANULARITY - 1)) == 0;
|
||||
}
|
||||
|
||||
inline void RecordAccess(uptr a) {
|
||||
// If we use a different shadow size then the type below needs adjustment.
|
||||
CHECK_EQ(SHADOW_ENTRY_SIZE, 8);
|
||||
u64 *shadow_address = (u64 *)MEM_TO_SHADOW(a);
|
||||
(*shadow_address)++;
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_MAPPING_H
|
||||
145
compiler-rt/lib/memprof/memprof_new_delete.cpp
Normal file
145
compiler-rt/lib/memprof/memprof_new_delete.cpp
Normal file
@ -0,0 +1,145 @@
|
||||
//===-- memprof_interceptors.cpp -----------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Interceptors for operators new and delete.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "sanitizer_common/sanitizer_allocator_report.h"
|
||||
|
||||
#include "interception/interception.h"
|
||||
|
||||
#include <stddef.h>
|
||||
|
||||
#define CXX_OPERATOR_ATTRIBUTE INTERCEPTOR_ATTRIBUTE
|
||||
|
||||
using namespace __memprof;
|
||||
|
||||
// Fake std::nothrow_t and std::align_val_t to avoid including <new>.
|
||||
namespace std {
|
||||
struct nothrow_t {};
|
||||
enum class align_val_t : size_t {};
|
||||
} // namespace std
|
||||
|
||||
#define OPERATOR_NEW_BODY(type, nothrow) \
|
||||
GET_STACK_TRACE_MALLOC; \
|
||||
void *res = memprof_memalign(0, size, &stack, type); \
|
||||
if (!nothrow && UNLIKELY(!res)) \
|
||||
ReportOutOfMemory(size, &stack); \
|
||||
return res;
|
||||
#define OPERATOR_NEW_BODY_ALIGN(type, nothrow) \
|
||||
GET_STACK_TRACE_MALLOC; \
|
||||
void *res = memprof_memalign((uptr)align, size, &stack, type); \
|
||||
if (!nothrow && UNLIKELY(!res)) \
|
||||
ReportOutOfMemory(size, &stack); \
|
||||
return res;
|
||||
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new(size_t size) {
|
||||
OPERATOR_NEW_BODY(FROM_NEW, false /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new[](size_t size) {
|
||||
OPERATOR_NEW_BODY(FROM_NEW_BR, false /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new(size_t size, std::nothrow_t const &) {
|
||||
OPERATOR_NEW_BODY(FROM_NEW, true /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new[](size_t size, std::nothrow_t const &) {
|
||||
OPERATOR_NEW_BODY(FROM_NEW_BR, true /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new(size_t size, std::align_val_t align) {
|
||||
OPERATOR_NEW_BODY_ALIGN(FROM_NEW, false /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new[](size_t size, std::align_val_t align) {
|
||||
OPERATOR_NEW_BODY_ALIGN(FROM_NEW_BR, false /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new(size_t size, std::align_val_t align,
|
||||
std::nothrow_t const &) {
|
||||
OPERATOR_NEW_BODY_ALIGN(FROM_NEW, true /*nothrow*/);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void *operator new[](size_t size, std::align_val_t align,
|
||||
std::nothrow_t const &) {
|
||||
OPERATOR_NEW_BODY_ALIGN(FROM_NEW_BR, true /*nothrow*/);
|
||||
}
|
||||
|
||||
#define OPERATOR_DELETE_BODY(type) \
|
||||
GET_STACK_TRACE_FREE; \
|
||||
memprof_delete(ptr, 0, 0, &stack, type);
|
||||
|
||||
#define OPERATOR_DELETE_BODY_SIZE(type) \
|
||||
GET_STACK_TRACE_FREE; \
|
||||
memprof_delete(ptr, size, 0, &stack, type);
|
||||
|
||||
#define OPERATOR_DELETE_BODY_ALIGN(type) \
|
||||
GET_STACK_TRACE_FREE; \
|
||||
memprof_delete(ptr, 0, static_cast<uptr>(align), &stack, type);
|
||||
|
||||
#define OPERATOR_DELETE_BODY_SIZE_ALIGN(type) \
|
||||
GET_STACK_TRACE_FREE; \
|
||||
memprof_delete(ptr, size, static_cast<uptr>(align), &stack, type);
|
||||
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr)NOEXCEPT { OPERATOR_DELETE_BODY(FROM_NEW); }
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr) NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY(FROM_NEW_BR);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr, std::nothrow_t const &) {
|
||||
OPERATOR_DELETE_BODY(FROM_NEW);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr, std::nothrow_t const &) {
|
||||
OPERATOR_DELETE_BODY(FROM_NEW_BR);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr, size_t size)NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_SIZE(FROM_NEW);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr, size_t size) NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_SIZE(FROM_NEW_BR);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr, std::align_val_t align)NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_ALIGN(FROM_NEW);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr, std::align_val_t align) NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_ALIGN(FROM_NEW_BR);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr, std::align_val_t align,
|
||||
std::nothrow_t const &) {
|
||||
OPERATOR_DELETE_BODY_ALIGN(FROM_NEW);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr, std::align_val_t align,
|
||||
std::nothrow_t const &) {
|
||||
OPERATOR_DELETE_BODY_ALIGN(FROM_NEW_BR);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete(void *ptr, size_t size, std::align_val_t align)NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_SIZE_ALIGN(FROM_NEW);
|
||||
}
|
||||
CXX_OPERATOR_ATTRIBUTE
|
||||
void operator delete[](void *ptr, size_t size,
|
||||
std::align_val_t align) NOEXCEPT {
|
||||
OPERATOR_DELETE_BODY_SIZE_ALIGN(FROM_NEW_BR);
|
||||
}
|
||||
55
compiler-rt/lib/memprof/memprof_posix.cpp
Normal file
55
compiler-rt/lib/memprof/memprof_posix.cpp
Normal file
@ -0,0 +1,55 @@
|
||||
//===-- memprof_posix.cpp ------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Posix-specific details.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "sanitizer_common/sanitizer_platform.h"
|
||||
#if !SANITIZER_POSIX
|
||||
#error Only Posix supported
|
||||
#endif
|
||||
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_internal_defs.h"
|
||||
|
||||
#include <pthread.h>
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
// ---------------------- TSD ---------------- {{{1
|
||||
|
||||
static pthread_key_t tsd_key;
|
||||
static bool tsd_key_inited = false;
|
||||
void TSDInit(void (*destructor)(void *tsd)) {
|
||||
CHECK(!tsd_key_inited);
|
||||
tsd_key_inited = true;
|
||||
CHECK_EQ(0, pthread_key_create(&tsd_key, destructor));
|
||||
}
|
||||
|
||||
void *TSDGet() {
|
||||
CHECK(tsd_key_inited);
|
||||
return pthread_getspecific(tsd_key);
|
||||
}
|
||||
|
||||
void TSDSet(void *tsd) {
|
||||
CHECK(tsd_key_inited);
|
||||
pthread_setspecific(tsd_key, tsd);
|
||||
}
|
||||
|
||||
void PlatformTSDDtor(void *tsd) {
|
||||
MemprofThreadContext *context = (MemprofThreadContext *)tsd;
|
||||
if (context->destructor_iterations > 1) {
|
||||
context->destructor_iterations--;
|
||||
CHECK_EQ(0, pthread_setspecific(tsd_key, tsd));
|
||||
return;
|
||||
}
|
||||
MemprofThread::TSDDtor(tsd);
|
||||
}
|
||||
} // namespace __memprof
|
||||
23
compiler-rt/lib/memprof/memprof_preinit.cpp
Normal file
23
compiler-rt/lib/memprof/memprof_preinit.cpp
Normal file
@ -0,0 +1,23 @@
|
||||
//===-- memprof_preinit.cpp ----------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Call __memprof_init at the very early stage of process startup.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#include "memprof_internal.h"
|
||||
|
||||
using namespace __memprof;
|
||||
|
||||
#if SANITIZER_CAN_USE_PREINIT_ARRAY
|
||||
// The symbol is called __local_memprof_preinit, because it's not intended to
|
||||
// be exported. This code linked into the main executable when -fmemory-profile
|
||||
// is in the link flags. It can only use exported interface functions.
|
||||
__attribute__((section(".preinit_array"),
|
||||
used)) void (*__local_memprof_preinit)(void) = __memprof_preinit;
|
||||
#endif
|
||||
312
compiler-rt/lib/memprof/memprof_rtl.cpp
Normal file
312
compiler-rt/lib/memprof/memprof_rtl.cpp
Normal file
@ -0,0 +1,312 @@
|
||||
//===-- memprof_rtl.cpp --------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Main file of the MemProf run-time library.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_interface_internal.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_mapping.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "memprof_stats.h"
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_atomic.h"
|
||||
#include "sanitizer_common/sanitizer_flags.h"
|
||||
#include "sanitizer_common/sanitizer_libc.h"
|
||||
#include "sanitizer_common/sanitizer_symbolizer.h"
|
||||
#include <ctime>
|
||||
|
||||
uptr __memprof_shadow_memory_dynamic_address; // Global interface symbol.
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
static void MemprofDie() {
|
||||
static atomic_uint32_t num_calls;
|
||||
if (atomic_fetch_add(&num_calls, 1, memory_order_relaxed) != 0) {
|
||||
// Don't die twice - run a busy loop.
|
||||
while (1) {
|
||||
}
|
||||
}
|
||||
if (common_flags()->print_module_map >= 1)
|
||||
DumpProcessMap();
|
||||
if (flags()->unmap_shadow_on_exit) {
|
||||
if (kHighShadowEnd)
|
||||
UnmapOrDie((void *)kLowShadowBeg, kHighShadowEnd - kLowShadowBeg);
|
||||
}
|
||||
}
|
||||
|
||||
static void MemprofCheckFailed(const char *file, int line, const char *cond,
|
||||
u64 v1, u64 v2) {
|
||||
Report("MemProfiler CHECK failed: %s:%d \"%s\" (0x%zx, 0x%zx)\n", file, line,
|
||||
cond, (uptr)v1, (uptr)v2);
|
||||
|
||||
// Print a stack trace the first time we come here. Otherwise, we probably
|
||||
// failed a CHECK during symbolization.
|
||||
static atomic_uint32_t num_calls;
|
||||
if (atomic_fetch_add(&num_calls, 1, memory_order_relaxed) == 0) {
|
||||
PRINT_CURRENT_STACK_CHECK();
|
||||
}
|
||||
|
||||
Die();
|
||||
}
|
||||
|
||||
// -------------------------- Globals --------------------- {{{1
|
||||
int memprof_inited;
|
||||
int memprof_init_done;
|
||||
bool memprof_init_is_running;
|
||||
int memprof_timestamp_inited;
|
||||
long memprof_init_timestamp_s;
|
||||
|
||||
uptr kHighMemEnd;
|
||||
|
||||
// -------------------------- Run-time entry ------------------- {{{1
|
||||
// exported functions
|
||||
|
||||
#define MEMPROF_MEMORY_ACCESS_CALLBACK_BODY() __memprof::RecordAccess(addr);
|
||||
|
||||
#define MEMPROF_MEMORY_ACCESS_CALLBACK(type) \
|
||||
extern "C" NOINLINE INTERFACE_ATTRIBUTE void __memprof_##type(uptr addr) { \
|
||||
MEMPROF_MEMORY_ACCESS_CALLBACK_BODY() \
|
||||
}
|
||||
|
||||
MEMPROF_MEMORY_ACCESS_CALLBACK(load)
|
||||
MEMPROF_MEMORY_ACCESS_CALLBACK(store)
|
||||
|
||||
// Force the linker to keep the symbols for various MemProf interface
|
||||
// functions. We want to keep those in the executable in order to let the
|
||||
// instrumented dynamic libraries access the symbol even if it is not used by
|
||||
// the executable itself. This should help if the build system is removing dead
|
||||
// code at link time.
|
||||
static NOINLINE void force_interface_symbols() {
|
||||
volatile int fake_condition = 0; // prevent dead condition elimination.
|
||||
// clang-format off
|
||||
switch (fake_condition) {
|
||||
case 1: __memprof_record_access(nullptr); break;
|
||||
case 2: __memprof_record_access_range(nullptr, 0); break;
|
||||
}
|
||||
// clang-format on
|
||||
}
|
||||
|
||||
static void memprof_atexit() {
|
||||
Printf("MemProfiler exit stats:\n");
|
||||
__memprof_print_accumulated_stats();
|
||||
}
|
||||
|
||||
static void InitializeHighMemEnd() {
|
||||
kHighMemEnd = GetMaxUserVirtualAddress();
|
||||
// Increase kHighMemEnd to make sure it's properly
|
||||
// aligned together with kHighMemBeg:
|
||||
kHighMemEnd |= (GetMmapGranularity() << SHADOW_SCALE) - 1;
|
||||
}
|
||||
|
||||
void PrintAddressSpaceLayout() {
|
||||
if (kHighMemBeg) {
|
||||
Printf("|| `[%p, %p]` || HighMem ||\n", (void *)kHighMemBeg,
|
||||
(void *)kHighMemEnd);
|
||||
Printf("|| `[%p, %p]` || HighShadow ||\n", (void *)kHighShadowBeg,
|
||||
(void *)kHighShadowEnd);
|
||||
}
|
||||
Printf("|| `[%p, %p]` || ShadowGap ||\n", (void *)kShadowGapBeg,
|
||||
(void *)kShadowGapEnd);
|
||||
if (kLowShadowBeg) {
|
||||
Printf("|| `[%p, %p]` || LowShadow ||\n", (void *)kLowShadowBeg,
|
||||
(void *)kLowShadowEnd);
|
||||
Printf("|| `[%p, %p]` || LowMem ||\n", (void *)kLowMemBeg,
|
||||
(void *)kLowMemEnd);
|
||||
}
|
||||
Printf("MemToShadow(shadow): %p %p", (void *)MEM_TO_SHADOW(kLowShadowBeg),
|
||||
(void *)MEM_TO_SHADOW(kLowShadowEnd));
|
||||
if (kHighMemBeg) {
|
||||
Printf(" %p %p", (void *)MEM_TO_SHADOW(kHighShadowBeg),
|
||||
(void *)MEM_TO_SHADOW(kHighShadowEnd));
|
||||
}
|
||||
Printf("\n");
|
||||
Printf("malloc_context_size=%zu\n",
|
||||
(uptr)common_flags()->malloc_context_size);
|
||||
|
||||
Printf("SHADOW_SCALE: %d\n", (int)SHADOW_SCALE);
|
||||
Printf("SHADOW_GRANULARITY: %d\n", (int)SHADOW_GRANULARITY);
|
||||
Printf("SHADOW_OFFSET: 0x%zx\n", (uptr)SHADOW_OFFSET);
|
||||
CHECK(SHADOW_SCALE >= 3 && SHADOW_SCALE <= 7);
|
||||
}
|
||||
|
||||
static bool UNUSED __local_memprof_dyninit = [] {
|
||||
MaybeStartBackgroudThread();
|
||||
SetSoftRssLimitExceededCallback(MemprofSoftRssLimitExceededCallback);
|
||||
|
||||
return false;
|
||||
}();
|
||||
|
||||
static void MemprofInitInternal() {
|
||||
if (LIKELY(memprof_inited))
|
||||
return;
|
||||
SanitizerToolName = "MemProfiler";
|
||||
CHECK(!memprof_init_is_running && "MemProf init calls itself!");
|
||||
memprof_init_is_running = true;
|
||||
|
||||
CacheBinaryName();
|
||||
|
||||
// Initialize flags. This must be done early, because most of the
|
||||
// initialization steps look at flags().
|
||||
InitializeFlags();
|
||||
|
||||
AvoidCVE_2016_2143();
|
||||
|
||||
SetMallocContextSize(common_flags()->malloc_context_size);
|
||||
|
||||
InitializeHighMemEnd();
|
||||
|
||||
// Make sure we are not statically linked.
|
||||
MemprofDoesNotSupportStaticLinkage();
|
||||
|
||||
// Install tool-specific callbacks in sanitizer_common.
|
||||
AddDieCallback(MemprofDie);
|
||||
SetCheckFailedCallback(MemprofCheckFailed);
|
||||
|
||||
__sanitizer_set_report_path(common_flags()->log_path);
|
||||
|
||||
__sanitizer::InitializePlatformEarly();
|
||||
|
||||
// Re-exec ourselves if we need to set additional env or command line args.
|
||||
MaybeReexec();
|
||||
|
||||
// Setup internal allocator callback.
|
||||
SetLowLevelAllocateMinAlignment(SHADOW_GRANULARITY);
|
||||
|
||||
InitializeMemprofInterceptors();
|
||||
CheckASLR();
|
||||
|
||||
ReplaceSystemMalloc();
|
||||
|
||||
DisableCoreDumperIfNecessary();
|
||||
|
||||
InitializeShadowMemory();
|
||||
|
||||
TSDInit(PlatformTSDDtor);
|
||||
|
||||
InitializeAllocator();
|
||||
|
||||
// On Linux MemprofThread::ThreadStart() calls malloc() that's why
|
||||
// memprof_inited should be set to 1 prior to initializing the threads.
|
||||
memprof_inited = 1;
|
||||
memprof_init_is_running = false;
|
||||
|
||||
if (flags()->atexit)
|
||||
Atexit(memprof_atexit);
|
||||
|
||||
InitializeCoverage(common_flags()->coverage, common_flags()->coverage_dir);
|
||||
|
||||
// interceptors
|
||||
InitTlsSize();
|
||||
|
||||
// Create main thread.
|
||||
MemprofThread *main_thread = CreateMainThread();
|
||||
CHECK_EQ(0, main_thread->tid());
|
||||
force_interface_symbols(); // no-op.
|
||||
SanitizerInitializeUnwinder();
|
||||
|
||||
Symbolizer::LateInitialize();
|
||||
|
||||
VReport(1, "MemProfiler Init done\n");
|
||||
|
||||
memprof_init_done = 1;
|
||||
}
|
||||
|
||||
void MemprofInitTime() {
|
||||
if (LIKELY(memprof_timestamp_inited))
|
||||
return;
|
||||
timespec ts;
|
||||
timespec_get(&ts, TIME_UTC);
|
||||
memprof_init_timestamp_s = ts.tv_sec;
|
||||
memprof_timestamp_inited = 1;
|
||||
}
|
||||
|
||||
// Initialize as requested from some part of MemProf runtime library
|
||||
// (interceptors, allocator, etc).
|
||||
void MemprofInitFromRtl() { MemprofInitInternal(); }
|
||||
|
||||
#if MEMPROF_DYNAMIC
|
||||
// Initialize runtime in case it's LD_PRELOAD-ed into uninstrumented executable
|
||||
// (and thus normal initializers from .preinit_array or modules haven't run).
|
||||
|
||||
class MemprofInitializer {
|
||||
public:
|
||||
MemprofInitializer() { MemprofInitFromRtl(); }
|
||||
};
|
||||
|
||||
static MemprofInitializer memprof_initializer;
|
||||
#endif // MEMPROF_DYNAMIC
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
// ---------------------- Interface ---------------- {{{1
|
||||
using namespace __memprof;
|
||||
|
||||
// Initialize as requested from instrumented application code.
|
||||
void __memprof_init() {
|
||||
MemprofInitTime();
|
||||
MemprofInitInternal();
|
||||
}
|
||||
|
||||
void __memprof_preinit() { MemprofInitInternal(); }
|
||||
|
||||
void __memprof_version_mismatch_check_v1() {}
|
||||
|
||||
void __memprof_record_access(void const volatile *addr) {
|
||||
__memprof::RecordAccess((uptr)addr);
|
||||
}
|
||||
|
||||
// We only record the access on the first location in the range,
|
||||
// since we will later accumulate the access counts across the
|
||||
// full allocation, and we don't want to inflate the hotness from
|
||||
// a memory intrinsic on a large range of memory.
|
||||
// TODO: Should we do something else so we can better track utilization?
|
||||
void __memprof_record_access_range(void const volatile *addr,
|
||||
UNUSED uptr size) {
|
||||
__memprof::RecordAccess((uptr)addr);
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE u16
|
||||
__sanitizer_unaligned_load16(const uu16 *p) {
|
||||
__memprof_record_access(p);
|
||||
return *p;
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE u32
|
||||
__sanitizer_unaligned_load32(const uu32 *p) {
|
||||
__memprof_record_access(p);
|
||||
return *p;
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE u64
|
||||
__sanitizer_unaligned_load64(const uu64 *p) {
|
||||
__memprof_record_access(p);
|
||||
return *p;
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE void
|
||||
__sanitizer_unaligned_store16(uu16 *p, u16 x) {
|
||||
__memprof_record_access(p);
|
||||
*p = x;
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE void
|
||||
__sanitizer_unaligned_store32(uu32 *p, u32 x) {
|
||||
__memprof_record_access(p);
|
||||
*p = x;
|
||||
}
|
||||
|
||||
extern "C" SANITIZER_INTERFACE_ATTRIBUTE void
|
||||
__sanitizer_unaligned_store64(uu64 *p, u64 x) {
|
||||
__memprof_record_access(p);
|
||||
*p = x;
|
||||
}
|
||||
62
compiler-rt/lib/memprof/memprof_shadow_setup.cpp
Normal file
62
compiler-rt/lib/memprof/memprof_shadow_setup.cpp
Normal file
@ -0,0 +1,62 @@
|
||||
//===-- memprof_shadow_setup.cpp -----------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Set up the shadow memory.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#include "sanitizer_common/sanitizer_platform.h"
|
||||
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_mapping.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
static void ProtectGap(uptr addr, uptr size) {
|
||||
if (!flags()->protect_shadow_gap) {
|
||||
// The shadow gap is unprotected, so there is a chance that someone
|
||||
// is actually using this memory. Which means it needs a shadow...
|
||||
uptr GapShadowBeg = RoundDownTo(MEM_TO_SHADOW(addr), GetPageSizeCached());
|
||||
uptr GapShadowEnd =
|
||||
RoundUpTo(MEM_TO_SHADOW(addr + size), GetPageSizeCached()) - 1;
|
||||
if (Verbosity())
|
||||
Printf("protect_shadow_gap=0:"
|
||||
" not protecting shadow gap, allocating gap's shadow\n"
|
||||
"|| `[%p, %p]` || ShadowGap's shadow ||\n",
|
||||
GapShadowBeg, GapShadowEnd);
|
||||
ReserveShadowMemoryRange(GapShadowBeg, GapShadowEnd,
|
||||
"unprotected gap shadow");
|
||||
return;
|
||||
}
|
||||
__sanitizer::ProtectGap(addr, size, kZeroBaseShadowStart,
|
||||
kZeroBaseMaxShadowStart);
|
||||
}
|
||||
|
||||
void InitializeShadowMemory() {
|
||||
uptr shadow_start = FindDynamicShadowStart();
|
||||
// Update the shadow memory address (potentially) used by instrumentation.
|
||||
__memprof_shadow_memory_dynamic_address = shadow_start;
|
||||
|
||||
if (kLowShadowBeg)
|
||||
shadow_start -= GetMmapGranularity();
|
||||
|
||||
if (Verbosity())
|
||||
PrintAddressSpaceLayout();
|
||||
|
||||
// mmap the low shadow plus at least one page at the left.
|
||||
if (kLowShadowBeg)
|
||||
ReserveShadowMemoryRange(shadow_start, kLowShadowEnd, "low shadow");
|
||||
// mmap the high shadow.
|
||||
ReserveShadowMemoryRange(kHighShadowBeg, kHighShadowEnd, "high shadow");
|
||||
// protect the gap.
|
||||
ProtectGap(kShadowGapBeg, kShadowGapEnd - kShadowGapBeg + 1);
|
||||
CHECK_EQ(kShadowGapEnd, kHighShadowBeg - 1);
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
59
compiler-rt/lib/memprof/memprof_stack.cpp
Normal file
59
compiler-rt/lib/memprof/memprof_stack.cpp
Normal file
@ -0,0 +1,59 @@
|
||||
//===-- memprof_stack.cpp ------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Code for MemProf stack trace.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#include "memprof_stack.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "sanitizer_common/sanitizer_atomic.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
static atomic_uint32_t malloc_context_size;
|
||||
|
||||
void SetMallocContextSize(u32 size) {
|
||||
atomic_store(&malloc_context_size, size, memory_order_release);
|
||||
}
|
||||
|
||||
u32 GetMallocContextSize() {
|
||||
return atomic_load(&malloc_context_size, memory_order_acquire);
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
void __sanitizer::BufferedStackTrace::UnwindImpl(uptr pc, uptr bp,
|
||||
void *context,
|
||||
bool request_fast,
|
||||
u32 max_depth) {
|
||||
using namespace __memprof;
|
||||
size = 0;
|
||||
if (UNLIKELY(!memprof_inited))
|
||||
return;
|
||||
request_fast = StackTrace::WillUseFastUnwind(request_fast);
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
if (request_fast) {
|
||||
if (t) {
|
||||
Unwind(max_depth, pc, bp, nullptr, t->stack_top(), t->stack_bottom(),
|
||||
true);
|
||||
}
|
||||
return;
|
||||
}
|
||||
Unwind(max_depth, pc, bp, context, 0, 0, false);
|
||||
}
|
||||
|
||||
// ------------------ Interface -------------- {{{1
|
||||
|
||||
extern "C" {
|
||||
SANITIZER_INTERFACE_ATTRIBUTE
|
||||
void __sanitizer_print_stack_trace() {
|
||||
using namespace __memprof;
|
||||
PRINT_CURRENT_STACK();
|
||||
}
|
||||
} // extern "C"
|
||||
75
compiler-rt/lib/memprof/memprof_stack.h
Normal file
75
compiler-rt/lib/memprof/memprof_stack.h
Normal file
@ -0,0 +1,75 @@
|
||||
//===-- memprof_stack.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_stack.cpp.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef MEMPROF_STACK_H
|
||||
#define MEMPROF_STACK_H
|
||||
|
||||
#include "memprof_flags.h"
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_flags.h"
|
||||
#include "sanitizer_common/sanitizer_stacktrace.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
static const u32 kDefaultMallocContextSize = 30;
|
||||
|
||||
void SetMallocContextSize(u32 size);
|
||||
u32 GetMallocContextSize();
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
// NOTE: A Rule of thumb is to retrieve stack trace in the interceptors
|
||||
// as early as possible (in functions exposed to the user), as we generally
|
||||
// don't want stack trace to contain functions from MemProf internals.
|
||||
|
||||
#define GET_STACK_TRACE(max_size, fast) \
|
||||
BufferedStackTrace stack; \
|
||||
if (max_size <= 2) { \
|
||||
stack.size = max_size; \
|
||||
if (max_size > 0) { \
|
||||
stack.top_frame_bp = GET_CURRENT_FRAME(); \
|
||||
stack.trace_buffer[0] = StackTrace::GetCurrentPc(); \
|
||||
if (max_size > 1) \
|
||||
stack.trace_buffer[1] = GET_CALLER_PC(); \
|
||||
} \
|
||||
} else { \
|
||||
stack.Unwind(StackTrace::GetCurrentPc(), GET_CURRENT_FRAME(), nullptr, \
|
||||
fast, max_size); \
|
||||
}
|
||||
|
||||
#define GET_STACK_TRACE_FATAL_HERE \
|
||||
GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_fatal)
|
||||
|
||||
#define GET_STACK_TRACE_CHECK_HERE \
|
||||
GET_STACK_TRACE(kStackTraceMax, common_flags()->fast_unwind_on_check)
|
||||
|
||||
#define GET_STACK_TRACE_THREAD GET_STACK_TRACE(kStackTraceMax, true)
|
||||
|
||||
#define GET_STACK_TRACE_MALLOC \
|
||||
GET_STACK_TRACE(GetMallocContextSize(), common_flags()->fast_unwind_on_malloc)
|
||||
|
||||
#define GET_STACK_TRACE_FREE GET_STACK_TRACE_MALLOC
|
||||
|
||||
#define PRINT_CURRENT_STACK() \
|
||||
{ \
|
||||
GET_STACK_TRACE_FATAL_HERE; \
|
||||
stack.Print(); \
|
||||
}
|
||||
|
||||
#define PRINT_CURRENT_STACK_CHECK() \
|
||||
{ \
|
||||
GET_STACK_TRACE_CHECK_HERE; \
|
||||
stack.Print(); \
|
||||
}
|
||||
|
||||
#endif // MEMPROF_STACK_H
|
||||
157
compiler-rt/lib/memprof/memprof_stats.cpp
Normal file
157
compiler-rt/lib/memprof/memprof_stats.cpp
Normal file
@ -0,0 +1,157 @@
|
||||
//===-- memprof_stats.cpp ------------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Code related to statistics collected by MemProfiler.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#include "memprof_stats.h"
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_thread.h"
|
||||
#include "sanitizer_common/sanitizer_allocator_interface.h"
|
||||
#include "sanitizer_common/sanitizer_mutex.h"
|
||||
#include "sanitizer_common/sanitizer_stackdepot.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
MemprofStats::MemprofStats() { Clear(); }
|
||||
|
||||
void MemprofStats::Clear() {
|
||||
if (REAL(memset))
|
||||
return (void)REAL(memset)(this, 0, sizeof(MemprofStats));
|
||||
internal_memset(this, 0, sizeof(MemprofStats));
|
||||
}
|
||||
|
||||
static void PrintMallocStatsArray(const char *prefix,
|
||||
uptr (&array)[kNumberOfSizeClasses]) {
|
||||
Printf("%s", prefix);
|
||||
for (uptr i = 0; i < kNumberOfSizeClasses; i++) {
|
||||
if (!array[i])
|
||||
continue;
|
||||
Printf("%zu:%zu; ", i, array[i]);
|
||||
}
|
||||
Printf("\n");
|
||||
}
|
||||
|
||||
void MemprofStats::Print() {
|
||||
Printf("Stats: %zuM malloced (%zuM for overhead) by %zu calls\n",
|
||||
malloced >> 20, malloced_overhead >> 20, mallocs);
|
||||
Printf("Stats: %zuM realloced by %zu calls\n", realloced >> 20, reallocs);
|
||||
Printf("Stats: %zuM freed by %zu calls\n", freed >> 20, frees);
|
||||
Printf("Stats: %zuM really freed by %zu calls\n", really_freed >> 20,
|
||||
real_frees);
|
||||
Printf("Stats: %zuM (%zuM-%zuM) mmaped; %zu maps, %zu unmaps\n",
|
||||
(mmaped - munmaped) >> 20, mmaped >> 20, munmaped >> 20, mmaps,
|
||||
munmaps);
|
||||
|
||||
PrintMallocStatsArray(" mallocs by size class: ", malloced_by_size);
|
||||
Printf("Stats: malloc large: %zu\n", malloc_large);
|
||||
}
|
||||
|
||||
void MemprofStats::MergeFrom(const MemprofStats *stats) {
|
||||
uptr *dst_ptr = reinterpret_cast<uptr *>(this);
|
||||
const uptr *src_ptr = reinterpret_cast<const uptr *>(stats);
|
||||
uptr num_fields = sizeof(*this) / sizeof(uptr);
|
||||
for (uptr i = 0; i < num_fields; i++)
|
||||
dst_ptr[i] += src_ptr[i];
|
||||
}
|
||||
|
||||
static BlockingMutex print_lock(LINKER_INITIALIZED);
|
||||
|
||||
static MemprofStats unknown_thread_stats(LINKER_INITIALIZED);
|
||||
static MemprofStats dead_threads_stats(LINKER_INITIALIZED);
|
||||
static BlockingMutex dead_threads_stats_lock(LINKER_INITIALIZED);
|
||||
// Required for malloc_zone_statistics() on OS X. This can't be stored in
|
||||
// per-thread MemprofStats.
|
||||
static uptr max_malloced_memory;
|
||||
|
||||
static void MergeThreadStats(ThreadContextBase *tctx_base, void *arg) {
|
||||
MemprofStats *accumulated_stats = reinterpret_cast<MemprofStats *>(arg);
|
||||
MemprofThreadContext *tctx = static_cast<MemprofThreadContext *>(tctx_base);
|
||||
if (MemprofThread *t = tctx->thread)
|
||||
accumulated_stats->MergeFrom(&t->stats());
|
||||
}
|
||||
|
||||
static void GetAccumulatedStats(MemprofStats *stats) {
|
||||
stats->Clear();
|
||||
{
|
||||
ThreadRegistryLock l(&memprofThreadRegistry());
|
||||
memprofThreadRegistry().RunCallbackForEachThreadLocked(MergeThreadStats,
|
||||
stats);
|
||||
}
|
||||
stats->MergeFrom(&unknown_thread_stats);
|
||||
{
|
||||
BlockingMutexLock lock(&dead_threads_stats_lock);
|
||||
stats->MergeFrom(&dead_threads_stats);
|
||||
}
|
||||
// This is not very accurate: we may miss allocation peaks that happen
|
||||
// between two updates of accumulated_stats_. For more accurate bookkeeping
|
||||
// the maximum should be updated on every malloc(), which is unacceptable.
|
||||
if (max_malloced_memory < stats->malloced) {
|
||||
max_malloced_memory = stats->malloced;
|
||||
}
|
||||
}
|
||||
|
||||
void FlushToDeadThreadStats(MemprofStats *stats) {
|
||||
BlockingMutexLock lock(&dead_threads_stats_lock);
|
||||
dead_threads_stats.MergeFrom(stats);
|
||||
stats->Clear();
|
||||
}
|
||||
|
||||
MemprofStats &GetCurrentThreadStats() {
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
return (t) ? t->stats() : unknown_thread_stats;
|
||||
}
|
||||
|
||||
static void PrintAccumulatedStats() {
|
||||
MemprofStats stats;
|
||||
GetAccumulatedStats(&stats);
|
||||
// Use lock to keep reports from mixing up.
|
||||
BlockingMutexLock lock(&print_lock);
|
||||
stats.Print();
|
||||
StackDepotStats *stack_depot_stats = StackDepotGetStats();
|
||||
Printf("Stats: StackDepot: %zd ids; %zdM allocated\n",
|
||||
stack_depot_stats->n_uniq_ids, stack_depot_stats->allocated >> 20);
|
||||
PrintInternalAllocatorStats();
|
||||
}
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
// ---------------------- Interface ---------------- {{{1
|
||||
using namespace __memprof;
|
||||
|
||||
uptr __sanitizer_get_current_allocated_bytes() {
|
||||
MemprofStats stats;
|
||||
GetAccumulatedStats(&stats);
|
||||
uptr malloced = stats.malloced;
|
||||
uptr freed = stats.freed;
|
||||
// Return sane value if malloced < freed due to racy
|
||||
// way we update accumulated stats.
|
||||
return (malloced > freed) ? malloced - freed : 1;
|
||||
}
|
||||
|
||||
uptr __sanitizer_get_heap_size() {
|
||||
MemprofStats stats;
|
||||
GetAccumulatedStats(&stats);
|
||||
return stats.mmaped - stats.munmaped;
|
||||
}
|
||||
|
||||
uptr __sanitizer_get_free_bytes() {
|
||||
MemprofStats stats;
|
||||
GetAccumulatedStats(&stats);
|
||||
uptr total_free = stats.mmaped - stats.munmaped + stats.really_freed;
|
||||
uptr total_used = stats.malloced;
|
||||
// Return sane value if total_free < total_used due to racy
|
||||
// way we update accumulated stats.
|
||||
return (total_free > total_used) ? total_free - total_used : 1;
|
||||
}
|
||||
|
||||
uptr __sanitizer_get_unmapped_bytes() { return 0; }
|
||||
|
||||
void __memprof_print_accumulated_stats() { PrintAccumulatedStats(); }
|
||||
61
compiler-rt/lib/memprof/memprof_stats.h
Normal file
61
compiler-rt/lib/memprof/memprof_stats.h
Normal file
@ -0,0 +1,61 @@
|
||||
//===-- memprof_stats.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 statistics.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#ifndef MEMPROF_STATS_H
|
||||
#define MEMPROF_STATS_H
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_internal.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
// MemprofStats struct is NOT thread-safe.
|
||||
// Each MemprofThread has its own MemprofStats, which are sometimes flushed
|
||||
// to the accumulated MemprofStats.
|
||||
struct MemprofStats {
|
||||
// MemprofStats must be a struct consisting of uptr fields only.
|
||||
// When merging two MemprofStats structs, we treat them as arrays of uptr.
|
||||
uptr mallocs;
|
||||
uptr malloced;
|
||||
uptr malloced_overhead;
|
||||
uptr frees;
|
||||
uptr freed;
|
||||
uptr real_frees;
|
||||
uptr really_freed;
|
||||
uptr reallocs;
|
||||
uptr realloced;
|
||||
uptr mmaps;
|
||||
uptr mmaped;
|
||||
uptr munmaps;
|
||||
uptr munmaped;
|
||||
uptr malloc_large;
|
||||
uptr malloced_by_size[kNumberOfSizeClasses];
|
||||
|
||||
// Ctor for global MemprofStats (accumulated stats for dead threads).
|
||||
explicit MemprofStats(LinkerInitialized) {}
|
||||
// Creates empty stats.
|
||||
MemprofStats();
|
||||
|
||||
void Print(); // Prints formatted stats to stderr.
|
||||
void Clear();
|
||||
void MergeFrom(const MemprofStats *stats);
|
||||
};
|
||||
|
||||
// Returns stats for GetCurrentThread(), or stats for fake "unknown thread"
|
||||
// if GetCurrentThread() returns 0.
|
||||
MemprofStats &GetCurrentThreadStats();
|
||||
// Flushes a given stats into accumulated stats of dead threads.
|
||||
void FlushToDeadThreadStats(MemprofStats *stats);
|
||||
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_STATS_H
|
||||
220
compiler-rt/lib/memprof/memprof_thread.cpp
Normal file
220
compiler-rt/lib/memprof/memprof_thread.cpp
Normal file
@ -0,0 +1,220 @@
|
||||
//===-- memprof_thread.cpp -----------------------------------------------===//
|
||||
//
|
||||
// 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.
|
||||
//
|
||||
// Thread-related code.
|
||||
//===----------------------------------------------------------------------===//
|
||||
#include "memprof_thread.h"
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_interceptors.h"
|
||||
#include "memprof_mapping.h"
|
||||
#include "memprof_stack.h"
|
||||
#include "sanitizer_common/sanitizer_common.h"
|
||||
#include "sanitizer_common/sanitizer_placement_new.h"
|
||||
#include "sanitizer_common/sanitizer_stackdepot.h"
|
||||
#include "sanitizer_common/sanitizer_tls_get_addr.h"
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
// MemprofThreadContext implementation.
|
||||
|
||||
void MemprofThreadContext::OnCreated(void *arg) {
|
||||
CreateThreadContextArgs *args = static_cast<CreateThreadContextArgs *>(arg);
|
||||
if (args->stack)
|
||||
stack_id = StackDepotPut(*args->stack);
|
||||
thread = args->thread;
|
||||
thread->set_context(this);
|
||||
}
|
||||
|
||||
void MemprofThreadContext::OnFinished() {
|
||||
// Drop the link to the MemprofThread object.
|
||||
thread = nullptr;
|
||||
}
|
||||
|
||||
static ALIGNED(16) char thread_registry_placeholder[sizeof(ThreadRegistry)];
|
||||
static ThreadRegistry *memprof_thread_registry;
|
||||
|
||||
static BlockingMutex mu_for_thread_context(LINKER_INITIALIZED);
|
||||
static LowLevelAllocator allocator_for_thread_context;
|
||||
|
||||
static ThreadContextBase *GetMemprofThreadContext(u32 tid) {
|
||||
BlockingMutexLock lock(&mu_for_thread_context);
|
||||
return new (allocator_for_thread_context) MemprofThreadContext(tid);
|
||||
}
|
||||
|
||||
ThreadRegistry &memprofThreadRegistry() {
|
||||
static bool initialized;
|
||||
// Don't worry about thread_safety - this should be called when there is
|
||||
// a single thread.
|
||||
if (!initialized) {
|
||||
// Never reuse MemProf threads: we store pointer to MemprofThreadContext
|
||||
// in TSD and can't reliably tell when no more TSD destructors will
|
||||
// be called. It would be wrong to reuse MemprofThreadContext for another
|
||||
// thread before all TSD destructors will be called for it.
|
||||
memprof_thread_registry = new (thread_registry_placeholder) ThreadRegistry(
|
||||
GetMemprofThreadContext, kMaxNumberOfThreads, kMaxNumberOfThreads);
|
||||
initialized = true;
|
||||
}
|
||||
return *memprof_thread_registry;
|
||||
}
|
||||
|
||||
MemprofThreadContext *GetThreadContextByTidLocked(u32 tid) {
|
||||
return static_cast<MemprofThreadContext *>(
|
||||
memprofThreadRegistry().GetThreadLocked(tid));
|
||||
}
|
||||
|
||||
// MemprofThread implementation.
|
||||
|
||||
MemprofThread *MemprofThread::Create(thread_callback_t start_routine, void *arg,
|
||||
u32 parent_tid, StackTrace *stack,
|
||||
bool detached) {
|
||||
uptr PageSize = GetPageSizeCached();
|
||||
uptr size = RoundUpTo(sizeof(MemprofThread), PageSize);
|
||||
MemprofThread *thread = (MemprofThread *)MmapOrDie(size, __func__);
|
||||
thread->start_routine_ = start_routine;
|
||||
thread->arg_ = arg;
|
||||
MemprofThreadContext::CreateThreadContextArgs args = {thread, stack};
|
||||
memprofThreadRegistry().CreateThread(*reinterpret_cast<uptr *>(thread),
|
||||
detached, parent_tid, &args);
|
||||
|
||||
return thread;
|
||||
}
|
||||
|
||||
void MemprofThread::TSDDtor(void *tsd) {
|
||||
MemprofThreadContext *context = (MemprofThreadContext *)tsd;
|
||||
VReport(1, "T%d TSDDtor\n", context->tid);
|
||||
if (context->thread)
|
||||
context->thread->Destroy();
|
||||
}
|
||||
|
||||
void MemprofThread::Destroy() {
|
||||
int tid = this->tid();
|
||||
VReport(1, "T%d exited\n", tid);
|
||||
|
||||
malloc_storage().CommitBack();
|
||||
memprofThreadRegistry().FinishThread(tid);
|
||||
FlushToDeadThreadStats(&stats_);
|
||||
uptr size = RoundUpTo(sizeof(MemprofThread), GetPageSizeCached());
|
||||
UnmapOrDie(this, size);
|
||||
DTLS_Destroy();
|
||||
}
|
||||
|
||||
inline MemprofThread::StackBounds MemprofThread::GetStackBounds() const {
|
||||
if (stack_bottom_ >= stack_top_)
|
||||
return {0, 0};
|
||||
return {stack_bottom_, stack_top_};
|
||||
}
|
||||
|
||||
uptr MemprofThread::stack_top() { return GetStackBounds().top; }
|
||||
|
||||
uptr MemprofThread::stack_bottom() { return GetStackBounds().bottom; }
|
||||
|
||||
uptr MemprofThread::stack_size() {
|
||||
const auto bounds = GetStackBounds();
|
||||
return bounds.top - bounds.bottom;
|
||||
}
|
||||
|
||||
void MemprofThread::Init(const InitOptions *options) {
|
||||
CHECK_EQ(this->stack_size(), 0U);
|
||||
SetThreadStackAndTls(options);
|
||||
if (stack_top_ != stack_bottom_) {
|
||||
CHECK_GT(this->stack_size(), 0U);
|
||||
CHECK(AddrIsInMem(stack_bottom_));
|
||||
CHECK(AddrIsInMem(stack_top_ - 1));
|
||||
}
|
||||
int local = 0;
|
||||
VReport(1, "T%d: stack [%p,%p) size 0x%zx; local=%p\n", tid(),
|
||||
(void *)stack_bottom_, (void *)stack_top_, stack_top_ - stack_bottom_,
|
||||
&local);
|
||||
}
|
||||
|
||||
thread_return_t
|
||||
MemprofThread::ThreadStart(tid_t os_id,
|
||||
atomic_uintptr_t *signal_thread_is_registered) {
|
||||
Init();
|
||||
memprofThreadRegistry().StartThread(tid(), os_id, ThreadType::Regular,
|
||||
nullptr);
|
||||
if (signal_thread_is_registered)
|
||||
atomic_store(signal_thread_is_registered, 1, memory_order_release);
|
||||
|
||||
if (!start_routine_) {
|
||||
// start_routine_ == 0 if we're on the main thread or on one of the
|
||||
// OS X libdispatch worker threads. But nobody is supposed to call
|
||||
// ThreadStart() for the worker threads.
|
||||
CHECK_EQ(tid(), 0);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return start_routine_(arg_);
|
||||
}
|
||||
|
||||
MemprofThread *CreateMainThread() {
|
||||
MemprofThread *main_thread = MemprofThread::Create(
|
||||
/* start_routine */ nullptr, /* arg */ nullptr, /* parent_tid */ 0,
|
||||
/* stack */ nullptr, /* detached */ true);
|
||||
SetCurrentThread(main_thread);
|
||||
main_thread->ThreadStart(internal_getpid(),
|
||||
/* signal_thread_is_registered */ nullptr);
|
||||
return main_thread;
|
||||
}
|
||||
|
||||
// This implementation doesn't use the argument, which is just passed down
|
||||
// from the caller of Init (which see, above). It's only there to support
|
||||
// OS-specific implementations that need more information passed through.
|
||||
void MemprofThread::SetThreadStackAndTls(const InitOptions *options) {
|
||||
DCHECK_EQ(options, nullptr);
|
||||
uptr tls_size = 0;
|
||||
uptr stack_size = 0;
|
||||
GetThreadStackAndTls(tid() == 0, &stack_bottom_, &stack_size, &tls_begin_,
|
||||
&tls_size);
|
||||
stack_top_ = stack_bottom_ + stack_size;
|
||||
tls_end_ = tls_begin_ + tls_size;
|
||||
dtls_ = DTLS_Get();
|
||||
|
||||
if (stack_top_ != stack_bottom_) {
|
||||
int local;
|
||||
CHECK(AddrIsInStack((uptr)&local));
|
||||
}
|
||||
}
|
||||
|
||||
bool MemprofThread::AddrIsInStack(uptr addr) {
|
||||
const auto bounds = GetStackBounds();
|
||||
return addr >= bounds.bottom && addr < bounds.top;
|
||||
}
|
||||
|
||||
MemprofThread *GetCurrentThread() {
|
||||
MemprofThreadContext *context =
|
||||
reinterpret_cast<MemprofThreadContext *>(TSDGet());
|
||||
if (!context)
|
||||
return nullptr;
|
||||
return context->thread;
|
||||
}
|
||||
|
||||
void SetCurrentThread(MemprofThread *t) {
|
||||
CHECK(t->context());
|
||||
VReport(2, "SetCurrentThread: %p for thread %p\n", t->context(),
|
||||
(void *)GetThreadSelf());
|
||||
// Make sure we do not reset the current MemprofThread.
|
||||
CHECK_EQ(0, TSDGet());
|
||||
TSDSet(t->context());
|
||||
CHECK_EQ(t->context(), TSDGet());
|
||||
}
|
||||
|
||||
u32 GetCurrentTidOrInvalid() {
|
||||
MemprofThread *t = GetCurrentThread();
|
||||
return t ? t->tid() : kInvalidTid;
|
||||
}
|
||||
|
||||
void EnsureMainThreadIDIsCorrect() {
|
||||
MemprofThreadContext *context =
|
||||
reinterpret_cast<MemprofThreadContext *>(TSDGet());
|
||||
if (context && (context->tid == 0))
|
||||
context->os_id = GetTid();
|
||||
}
|
||||
} // namespace __memprof
|
||||
138
compiler-rt/lib/memprof/memprof_thread.h
Normal file
138
compiler-rt/lib/memprof/memprof_thread.h
Normal file
@ -0,0 +1,138 @@
|
||||
//===-- memprof_thread.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_thread.cpp.
|
||||
//===----------------------------------------------------------------------===//
|
||||
|
||||
#ifndef MEMPROF_THREAD_H
|
||||
#define MEMPROF_THREAD_H
|
||||
|
||||
#include "memprof_allocator.h"
|
||||
#include "memprof_internal.h"
|
||||
#include "memprof_stats.h"
|
||||
#include "sanitizer_common/sanitizer_common.h"
|
||||
#include "sanitizer_common/sanitizer_libc.h"
|
||||
#include "sanitizer_common/sanitizer_thread_registry.h"
|
||||
|
||||
namespace __sanitizer {
|
||||
struct DTLS;
|
||||
} // namespace __sanitizer
|
||||
|
||||
namespace __memprof {
|
||||
|
||||
const u32 kInvalidTid = 0xffffff; // Must fit into 24 bits.
|
||||
const u32 kMaxNumberOfThreads = (1 << 22); // 4M
|
||||
|
||||
class MemprofThread;
|
||||
|
||||
// These objects are created for every thread and are never deleted,
|
||||
// so we can find them by tid even if the thread is long dead.
|
||||
struct MemprofThreadContext : public ThreadContextBase {
|
||||
explicit MemprofThreadContext(int tid)
|
||||
: ThreadContextBase(tid), announced(false),
|
||||
destructor_iterations(GetPthreadDestructorIterations()), stack_id(0),
|
||||
thread(nullptr) {}
|
||||
bool announced;
|
||||
u8 destructor_iterations;
|
||||
u32 stack_id;
|
||||
MemprofThread *thread;
|
||||
|
||||
void OnCreated(void *arg) override;
|
||||
void OnFinished() override;
|
||||
|
||||
struct CreateThreadContextArgs {
|
||||
MemprofThread *thread;
|
||||
StackTrace *stack;
|
||||
};
|
||||
};
|
||||
|
||||
// MemprofThreadContext objects are never freed, so we need many of them.
|
||||
COMPILER_CHECK(sizeof(MemprofThreadContext) <= 256);
|
||||
|
||||
// MemprofThread are stored in TSD and destroyed when the thread dies.
|
||||
class MemprofThread {
|
||||
public:
|
||||
static MemprofThread *Create(thread_callback_t start_routine, void *arg,
|
||||
u32 parent_tid, StackTrace *stack,
|
||||
bool detached);
|
||||
static void TSDDtor(void *tsd);
|
||||
void Destroy();
|
||||
|
||||
struct InitOptions;
|
||||
void Init(const InitOptions *options = nullptr);
|
||||
|
||||
thread_return_t ThreadStart(tid_t os_id,
|
||||
atomic_uintptr_t *signal_thread_is_registered);
|
||||
|
||||
uptr stack_top();
|
||||
uptr stack_bottom();
|
||||
uptr stack_size();
|
||||
uptr tls_begin() { return tls_begin_; }
|
||||
uptr tls_end() { return tls_end_; }
|
||||
DTLS *dtls() { return dtls_; }
|
||||
u32 tid() { return context_->tid; }
|
||||
MemprofThreadContext *context() { return context_; }
|
||||
void set_context(MemprofThreadContext *context) { context_ = context; }
|
||||
|
||||
bool AddrIsInStack(uptr addr);
|
||||
|
||||
// True is this thread is currently unwinding stack (i.e. collecting a stack
|
||||
// trace). Used to prevent deadlocks on platforms where libc unwinder calls
|
||||
// malloc internally. See PR17116 for more details.
|
||||
bool isUnwinding() const { return unwinding_; }
|
||||
void setUnwinding(bool b) { unwinding_ = b; }
|
||||
|
||||
MemprofThreadLocalMallocStorage &malloc_storage() { return malloc_storage_; }
|
||||
MemprofStats &stats() { return stats_; }
|
||||
|
||||
private:
|
||||
// NOTE: There is no MemprofThread constructor. It is allocated
|
||||
// via mmap() and *must* be valid in zero-initialized state.
|
||||
|
||||
void SetThreadStackAndTls(const InitOptions *options);
|
||||
|
||||
struct StackBounds {
|
||||
uptr bottom;
|
||||
uptr top;
|
||||
};
|
||||
StackBounds GetStackBounds() const;
|
||||
|
||||
MemprofThreadContext *context_;
|
||||
thread_callback_t start_routine_;
|
||||
void *arg_;
|
||||
|
||||
uptr stack_top_;
|
||||
uptr stack_bottom_;
|
||||
|
||||
uptr tls_begin_;
|
||||
uptr tls_end_;
|
||||
DTLS *dtls_;
|
||||
|
||||
MemprofThreadLocalMallocStorage malloc_storage_;
|
||||
MemprofStats stats_;
|
||||
bool unwinding_;
|
||||
};
|
||||
|
||||
// Returns a single instance of registry.
|
||||
ThreadRegistry &memprofThreadRegistry();
|
||||
|
||||
// Must be called under ThreadRegistryLock.
|
||||
MemprofThreadContext *GetThreadContextByTidLocked(u32 tid);
|
||||
|
||||
// Get the current thread. May return 0.
|
||||
MemprofThread *GetCurrentThread();
|
||||
void SetCurrentThread(MemprofThread *t);
|
||||
u32 GetCurrentTidOrInvalid();
|
||||
|
||||
// Used to handle fork().
|
||||
void EnsureMainThreadIDIsCorrect();
|
||||
} // namespace __memprof
|
||||
|
||||
#endif // MEMPROF_THREAD_H
|
||||
1
compiler-rt/lib/memprof/weak_symbols.txt
Normal file
1
compiler-rt/lib/memprof/weak_symbols.txt
Normal file
@ -0,0 +1 @@
|
||||
___memprof_default_options
|
||||
@ -134,4 +134,12 @@ void NORETURN ReportOutOfMemory(uptr requested_size, const StackTrace *stack) {
|
||||
Die();
|
||||
}
|
||||
|
||||
void NORETURN ReportRssLimitExceeded(const StackTrace *stack) {
|
||||
{
|
||||
ScopedAllocatorErrorReport report("rss-limit-exceeded", stack);
|
||||
Report("ERROR: %s: allocator exceeded the RSS limit\n", SanitizerToolName);
|
||||
}
|
||||
Die();
|
||||
}
|
||||
|
||||
} // namespace __sanitizer
|
||||
|
||||
@ -33,6 +33,7 @@ void NORETURN ReportInvalidPosixMemalignAlignment(uptr alignment,
|
||||
void NORETURN ReportAllocationSizeTooBig(uptr user_size, uptr max_size,
|
||||
const StackTrace *stack);
|
||||
void NORETURN ReportOutOfMemory(uptr requested_size, const StackTrace *stack);
|
||||
void NORETURN ReportRssLimitExceeded(const StackTrace *stack);
|
||||
|
||||
} // namespace __sanitizer
|
||||
|
||||
|
||||
@ -82,8 +82,9 @@ COMMON_FLAG(bool, print_summary, true,
|
||||
"If false, disable printing error summaries in addition to error "
|
||||
"reports.")
|
||||
COMMON_FLAG(int, print_module_map, 0,
|
||||
"OS X only (0 - don't print, 1 - print only once before process "
|
||||
"exits, 2 - print after each report).")
|
||||
"Print the process module map where supported (0 - don't print, "
|
||||
"1 - print only once before process exits, 2 - print after each "
|
||||
"report).")
|
||||
COMMON_FLAG(bool, check_printf, true, "Check printf arguments.")
|
||||
#define COMMON_FLAG_HANDLE_SIGNAL_HELP(signal) \
|
||||
"Controls custom tool's " #signal " handler (0 - do not registers the " \
|
||||
|
||||
@ -448,5 +448,8 @@ using namespace __sanitizer;
|
||||
namespace __hwasan {
|
||||
using namespace __sanitizer;
|
||||
}
|
||||
namespace __memprof {
|
||||
using namespace __sanitizer;
|
||||
}
|
||||
|
||||
#endif // SANITIZER_DEFS_H
|
||||
|
||||
@ -68,6 +68,9 @@ if(COMPILER_RT_CAN_EXECUTE_TESTS)
|
||||
if(COMPILER_RT_BUILD_PROFILE AND COMPILER_RT_HAS_PROFILE)
|
||||
compiler_rt_test_runtime(profile)
|
||||
endif()
|
||||
if(COMPILER_RT_BUILD_MEMPROF)
|
||||
compiler_rt_test_runtime(memprof)
|
||||
endif()
|
||||
if(COMPILER_RT_BUILD_XRAY)
|
||||
compiler_rt_test_runtime(xray)
|
||||
endif()
|
||||
|
||||
@ -57,6 +57,8 @@ config.available_features.add(compiler_id)
|
||||
# If needed, add cflag for shadow scale.
|
||||
if config.asan_shadow_scale != '':
|
||||
config.target_cflags += " -mllvm -asan-mapping-scale=" + config.asan_shadow_scale
|
||||
if config.memprof_shadow_scale != '':
|
||||
config.target_cflags += " -mllvm -memprof-mapping-scale=" + config.memprof_shadow_scale
|
||||
|
||||
# BFD linker in 64-bit android toolchains fails to find libc++_shared.so, which
|
||||
# is a transitive shared library dependency (via asan runtime).
|
||||
@ -554,6 +556,11 @@ if config.asan_shadow_scale:
|
||||
else:
|
||||
config.available_features.add("shadow-scale-3")
|
||||
|
||||
if config.memprof_shadow_scale:
|
||||
config.available_features.add("memprof-shadow-scale-%s" % config.memprof_shadow_scale)
|
||||
else:
|
||||
config.available_features.add("memprof-shadow-scale-3")
|
||||
|
||||
if config.expensive_checks:
|
||||
config.available_features.add("expensive_checks")
|
||||
|
||||
|
||||
@ -29,6 +29,7 @@ set_default("compiler_rt_intercept_libdispatch", @COMPILER_RT_INTERCEPT_LIBDISPA
|
||||
set_default("compiler_rt_libdir", "@COMPILER_RT_RESOLVED_LIBRARY_OUTPUT_DIR@")
|
||||
set_default("emulator", "@COMPILER_RT_EMULATOR@")
|
||||
set_default("asan_shadow_scale", "@COMPILER_RT_ASAN_SHADOW_SCALE@")
|
||||
set_default("memprof_shadow_scale", "@COMPILER_RT_MEMPROF_SHADOW_SCALE@")
|
||||
set_default("apple_platform", "osx")
|
||||
set_default("apple_platform_min_deployment_target_flag", "-mmacosx-version-min")
|
||||
set_default("sanitizer_can_use_cxxabi", @SANITIZER_CAN_USE_CXXABI_PYBOOL@)
|
||||
|
||||
60
compiler-rt/test/memprof/CMakeLists.txt
Normal file
60
compiler-rt/test/memprof/CMakeLists.txt
Normal file
@ -0,0 +1,60 @@
|
||||
set(MEMPROF_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
|
||||
|
||||
set(MEMPROF_TESTSUITES)
|
||||
set(MEMPROF_DYNAMIC_TESTSUITES)
|
||||
|
||||
macro(get_bits_for_arch arch bits)
|
||||
if (${arch} MATCHES "x86_64")
|
||||
set(${bits} 64)
|
||||
else()
|
||||
message(FATAL_ERROR "Unexpected target architecture: ${arch}")
|
||||
endif()
|
||||
endmacro()
|
||||
|
||||
set(MEMPROF_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
|
||||
if(NOT COMPILER_RT_STANDALONE_BUILD)
|
||||
list(APPEND MEMPROF_TEST_DEPS memprof)
|
||||
if(COMPILER_RT_HAS_LLD AND TARGET lld)
|
||||
list(APPEND MEMPROF_TEST_DEPS lld)
|
||||
endif()
|
||||
endif()
|
||||
set(MEMPROF_DYNAMIC_TEST_DEPS ${MEMPROF_TEST_DEPS})
|
||||
|
||||
set(MEMPROF_TEST_ARCH ${MEMPROF_SUPPORTED_ARCH})
|
||||
|
||||
foreach(arch ${MEMPROF_TEST_ARCH})
|
||||
set(MEMPROF_TEST_TARGET_ARCH ${arch})
|
||||
string(TOLOWER "-${arch}-${OS_NAME}" MEMPROF_TEST_CONFIG_SUFFIX)
|
||||
get_bits_for_arch(${arch} MEMPROF_TEST_BITS)
|
||||
get_test_cc_for_arch(${arch} MEMPROF_TEST_TARGET_CC MEMPROF_TEST_TARGET_CFLAGS)
|
||||
set(MEMPROF_TEST_DYNAMIC False)
|
||||
string(TOUPPER ${arch} ARCH_UPPER_CASE)
|
||||
set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
|
||||
configure_lit_site_cfg(
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
|
||||
${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py
|
||||
)
|
||||
list(APPEND MEMPROF_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
|
||||
|
||||
string(TOLOWER "-${arch}-${OS_NAME}-dynamic" MEMPROF_TEST_CONFIG_SUFFIX)
|
||||
set(MEMPROF_TEST_DYNAMIC True)
|
||||
set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}DynamicConfig)
|
||||
configure_lit_site_cfg(
|
||||
${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.py.in
|
||||
${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg.py)
|
||||
list(APPEND MEMPROF_DYNAMIC_TESTSUITES
|
||||
${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
|
||||
endforeach()
|
||||
|
||||
add_lit_testsuite(check-memprof "Running the MemProfiler tests"
|
||||
${MEMPROF_TESTSUITES}
|
||||
DEPENDS ${MEMPROF_TEST_DEPS})
|
||||
set_target_properties(check-memprof PROPERTIES FOLDER "Compiler-RT Misc")
|
||||
|
||||
add_lit_testsuite(check-memprof-dynamic
|
||||
"Running the MemProfiler tests with dynamic runtime"
|
||||
${MEMPROF_DYNAMIC_TESTSUITES}
|
||||
${exclude_from_check_all.g}
|
||||
DEPENDS ${MEMPROF_DYNAMIC_TEST_DEPS})
|
||||
set_target_properties(check-memprof-dynamic
|
||||
PROPERTIES FOLDER "Compiler-RT Misc")
|
||||
20
compiler-rt/test/memprof/TestCases/atexit_stats.cpp
Normal file
20
compiler-rt/test/memprof/TestCases/atexit_stats.cpp
Normal file
@ -0,0 +1,20 @@
|
||||
// Check atexit option.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=atexit=1 %run %t 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=atexit=0 %run %t 2>&1 | FileCheck %s --check-prefix=NOATEXIT
|
||||
|
||||
// CHECK: MemProfiler exit stats:
|
||||
// CHECK: Stats: {{[0-9]+}}M malloced ({{[0-9]+}}M for overhead) by {{[0-9]+}} calls
|
||||
// CHECK: Stats: {{[0-9]+}}M realloced by {{[0-9]+}} calls
|
||||
// CHECK: Stats: {{[0-9]+}}M freed by {{[0-9]+}} calls
|
||||
// CHECK: Stats: {{[0-9]+}}M really freed by {{[0-9]+}} calls
|
||||
// CHECK: Stats: {{[0-9]+}}M ({{[0-9]+}}M-{{[0-9]+}}M) mmaped; {{[0-9]+}} maps, {{[0-9]+}} unmaps
|
||||
// CHECK: mallocs by size class:
|
||||
// CHECK: Stats: malloc large: {{[0-9]+}}
|
||||
|
||||
// NOATEXIT-NOT: MemProfiler exit stats
|
||||
|
||||
int main() {
|
||||
return 0;
|
||||
}
|
||||
12
compiler-rt/test/memprof/TestCases/default_options.cpp
Normal file
12
compiler-rt/test/memprof/TestCases/default_options.cpp
Normal file
@ -0,0 +1,12 @@
|
||||
// RUN: %clangxx_memprof -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
|
||||
|
||||
const char *kMemProfDefaultOptions = "verbosity=1 help=1";
|
||||
|
||||
extern "C" const char *__memprof_default_options() {
|
||||
// CHECK: Available flags for MemProfiler:
|
||||
return kMemProfDefaultOptions;
|
||||
}
|
||||
|
||||
int main() {
|
||||
return 0;
|
||||
}
|
||||
14
compiler-rt/test/memprof/TestCases/dump_process_map.cpp
Normal file
14
compiler-rt/test/memprof/TestCases/dump_process_map.cpp
Normal file
@ -0,0 +1,14 @@
|
||||
// Check print_module_map option.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=print_module_map=1 %run %t 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=print_module_map=0 %run %t 2>&1 | FileCheck %s --check-prefix=NOMAP
|
||||
|
||||
// CHECK: Process memory map follows:
|
||||
// CHECK: dump_process_map.cpp.tmp
|
||||
// CHECK: End of process memory map.
|
||||
// NOMAP-NOT: memory map
|
||||
|
||||
int main() {
|
||||
return 0;
|
||||
}
|
||||
33
compiler-rt/test/memprof/TestCases/free_hook_realloc.cpp
Normal file
33
compiler-rt/test/memprof/TestCases/free_hook_realloc.cpp
Normal file
@ -0,0 +1,33 @@
|
||||
// Check that free hook doesn't conflict with Realloc.
|
||||
// RUN: %clangxx_memprof -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
|
||||
|
||||
#include <sanitizer/allocator_interface.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
|
||||
static void *glob_ptr;
|
||||
|
||||
extern "C" {
|
||||
void __sanitizer_free_hook(const volatile void *ptr) {
|
||||
if (ptr == glob_ptr) {
|
||||
*(int *)ptr = 0;
|
||||
write(1, "FreeHook\n", sizeof("FreeHook\n"));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int main() {
|
||||
int *x = (int *)malloc(100);
|
||||
x[0] = 42;
|
||||
glob_ptr = x;
|
||||
int *y = (int *)realloc(x, 200);
|
||||
// Verify that free hook was called and didn't spoil the memory.
|
||||
if (y[0] != 42) {
|
||||
_exit(1);
|
||||
}
|
||||
write(1, "Passed\n", sizeof("Passed\n"));
|
||||
free(y);
|
||||
// CHECK: FreeHook
|
||||
// CHECK: Passed
|
||||
return 0;
|
||||
}
|
||||
25
compiler-rt/test/memprof/TestCases/interface_test.cpp
Normal file
25
compiler-rt/test/memprof/TestCases/interface_test.cpp
Normal file
@ -0,0 +1,25 @@
|
||||
// Check that user may include MemProf interface header.
|
||||
// Also check that interfaces declared in the sanitizer's allocator_interface
|
||||
// are defined for MemProf.
|
||||
// RUN: %clang_memprof %s -o %t -DMEMPROF && %run %t
|
||||
// RUN: %clang_memprof -x c %s -o %t -DMEMPROF && %run %t
|
||||
// RUN: %clang %s -pie -o %t && %run %t
|
||||
// RUN: %clang -x c %s -pie -o %t && %run %t
|
||||
#include <sanitizer/allocator_interface.h>
|
||||
#include <sanitizer/memprof_interface.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main() {
|
||||
int *p = (int *)malloc(10 * sizeof(int));
|
||||
#ifdef MEMPROF
|
||||
__sanitizer_get_estimated_allocated_size(8);
|
||||
__sanitizer_get_ownership(p);
|
||||
__sanitizer_get_allocated_size(p);
|
||||
__sanitizer_get_current_allocated_bytes();
|
||||
__sanitizer_get_heap_size();
|
||||
__sanitizer_get_free_bytes();
|
||||
__sanitizer_get_unmapped_bytes();
|
||||
// malloc and free hooks are tested by the malloc_hook.cpp test.
|
||||
#endif
|
||||
return 0;
|
||||
}
|
||||
34
compiler-rt/test/memprof/TestCases/log_path_test.cpp
Normal file
34
compiler-rt/test/memprof/TestCases/log_path_test.cpp
Normal file
@ -0,0 +1,34 @@
|
||||
// The for loop in the backticks below requires bash.
|
||||
// REQUIRES: shell
|
||||
//
|
||||
// RUN: %clangxx_memprof %s -o %t
|
||||
|
||||
// Regular run.
|
||||
// RUN: %run %t 2> %t.out
|
||||
// RUN: FileCheck %s --check-prefix=CHECK-GOOD < %t.out
|
||||
|
||||
// Good log_path.
|
||||
// RUN: rm -f %t.log.*
|
||||
// RUN: %env_memprof_opts=log_path=%t.log %run %t 2> %t.out
|
||||
// RUN: FileCheck %s --check-prefix=CHECK-GOOD < %t.log.*
|
||||
|
||||
// Invalid log_path.
|
||||
// RUN: %env_memprof_opts=log_path=/dev/null/INVALID not %run %t 2> %t.out
|
||||
// RUN: FileCheck %s --check-prefix=CHECK-INVALID < %t.out
|
||||
|
||||
// Too long log_path.
|
||||
// RUN: %env_memprof_opts=log_path=`for((i=0;i<10000;i++)); do echo -n $i; done` \
|
||||
// RUN: not %run %t 2> %t.out
|
||||
// RUN: FileCheck %s --check-prefix=CHECK-LONG < %t.out
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
int main(int argc, char **argv) {
|
||||
char *x = (char *)malloc(10);
|
||||
memset(x, 0, 10);
|
||||
free(x);
|
||||
return 0;
|
||||
}
|
||||
// CHECK-GOOD: Memory allocation stack id
|
||||
// CHECK-INVALID: ERROR: Can't open file: /dev/null/INVALID
|
||||
// CHECK-LONG: ERROR: Path is too long: 01234
|
||||
23
compiler-rt/test/memprof/TestCases/malloc-size-too-big.cpp
Normal file
23
compiler-rt/test/memprof/TestCases/malloc-size-too-big.cpp
Normal file
@ -0,0 +1,23 @@
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=allocator_may_return_null=0 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-SUMMARY
|
||||
// RUN: %env_memprof_opts=allocator_may_return_null=1 %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-NULL
|
||||
// Test print_summary
|
||||
// RUN: %env_memprof_opts=allocator_may_return_null=0:print_summary=0 not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOSUMMARY
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
static const size_t kMaxAllowedMallocSizePlusOne = (1ULL << 40) + 1;
|
||||
int main() {
|
||||
void *p = malloc(kMaxAllowedMallocSizePlusOne);
|
||||
// CHECK: {{ERROR: MemProfiler: requested allocation size .* exceeds maximum supported size}}
|
||||
// CHECK: {{#0 0x.* in .*malloc}}
|
||||
// CHECK: {{#1 0x.* in main .*malloc-size-too-big.cpp:}}[[@LINE-3]]
|
||||
// CHECK-SUMMARY: SUMMARY: MemProfiler: allocation-size-too-big
|
||||
// CHECK-NOSUMMARY-NOT: SUMMARY:
|
||||
|
||||
printf("malloc returned: %zu\n", (size_t)p);
|
||||
// CHECK-NULL: malloc returned: 0
|
||||
|
||||
return 0;
|
||||
}
|
||||
58
compiler-rt/test/memprof/TestCases/malloc_hook.cpp
Normal file
58
compiler-rt/test/memprof/TestCases/malloc_hook.cpp
Normal file
@ -0,0 +1,58 @@
|
||||
// Check that MemProf correctly handles malloc and free hooks.
|
||||
// RUN: %clangxx_memprof -O2 %s -o %t && %run %t 2>&1 | FileCheck %s
|
||||
|
||||
#include <sanitizer/allocator_interface.h>
|
||||
#include <stdlib.h>
|
||||
#include <unistd.h>
|
||||
|
||||
extern "C" {
|
||||
const volatile void *global_ptr;
|
||||
|
||||
#define WRITE(s) write(1, s, sizeof(s))
|
||||
|
||||
// Note: avoid calling functions that allocate memory in malloc/free
|
||||
// to avoid infinite recursion.
|
||||
void __sanitizer_malloc_hook(const volatile void *ptr, size_t sz) {
|
||||
if (__sanitizer_get_ownership(ptr) && sz == 4) {
|
||||
WRITE("MallocHook\n");
|
||||
global_ptr = ptr;
|
||||
}
|
||||
}
|
||||
void __sanitizer_free_hook(const volatile void *ptr) {
|
||||
if (__sanitizer_get_ownership(ptr) && ptr == global_ptr)
|
||||
WRITE("FreeHook\n");
|
||||
}
|
||||
} // extern "C"
|
||||
|
||||
volatile int *x;
|
||||
|
||||
void MallocHook1(const volatile void *ptr, size_t sz) { WRITE("MH1\n"); }
|
||||
void MallocHook2(const volatile void *ptr, size_t sz) { WRITE("MH2\n"); }
|
||||
void FreeHook1(const volatile void *ptr) { WRITE("FH1\n"); }
|
||||
void FreeHook2(const volatile void *ptr) { WRITE("FH2\n"); }
|
||||
// Call this function with uninitialized arguments to poison
|
||||
// TLS shadow for function parameters before calling operator
|
||||
// new and, eventually, user-provided hook.
|
||||
__attribute__((noinline)) void allocate(int *unused1, int *unused2) {
|
||||
x = new int;
|
||||
}
|
||||
|
||||
int main() {
|
||||
__sanitizer_install_malloc_and_free_hooks(MallocHook1, FreeHook1);
|
||||
__sanitizer_install_malloc_and_free_hooks(MallocHook2, FreeHook2);
|
||||
int *undef1, *undef2;
|
||||
allocate(undef1, undef2);
|
||||
// CHECK: MallocHook
|
||||
// CHECK: MH1
|
||||
// CHECK: MH2
|
||||
// Check that malloc hook was called with correct argument.
|
||||
if (global_ptr != (void *)x) {
|
||||
_exit(1);
|
||||
}
|
||||
*x = 0;
|
||||
delete x;
|
||||
// CHECK: FreeHook
|
||||
// CHECK: FH1
|
||||
// CHECK: FH2
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,10 @@
|
||||
// Check mem_info_cache_entries option.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t && %env_memprof_opts=mem_info_cache_entries=15:print_mem_info_cache_miss_rate=1:print_mem_info_cache_miss_rate_details=1 %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// CHECK: Set 14 miss rate: 0 / {{.*}} = 0.00%
|
||||
// CHECK-NOT: Set
|
||||
|
||||
int main() {
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,7 @@
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t && %env_memprof_opts=help=1 %run %t 2>&1 | FileCheck %s
|
||||
|
||||
int main() {
|
||||
}
|
||||
|
||||
// CHECK: Available flags for MemProfiler:
|
||||
// CHECK-DAG: atexit
|
||||
14
compiler-rt/test/memprof/TestCases/print_miss_rate.cpp
Normal file
14
compiler-rt/test/memprof/TestCases/print_miss_rate.cpp
Normal file
@ -0,0 +1,14 @@
|
||||
// Check print_mem_info_cache_miss_rate and
|
||||
// print_mem_info_cache_miss_rate_details options.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=print_mem_info_cache_miss_rate=1 %run %t 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=print_mem_info_cache_miss_rate=1:print_mem_info_cache_miss_rate_details=1 %run %t 2>&1 | FileCheck %s --check-prefix=DETAILS
|
||||
|
||||
// CHECK: Overall miss rate: 0 / {{.*}} = 0.00%
|
||||
// DETAILS: Set 0 miss rate: 0 / {{.*}} = 0.00%
|
||||
// DETAILS: Set 16380 miss rate: 0 / {{.*}} = 0.00%
|
||||
|
||||
int main() {
|
||||
return 0;
|
||||
}
|
||||
21
compiler-rt/test/memprof/TestCases/realloc.cpp
Normal file
21
compiler-rt/test/memprof/TestCases/realloc.cpp
Normal file
@ -0,0 +1,21 @@
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// Default is true (free on realloc to 0 size)
|
||||
// RUN: %run %t 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=allocator_frees_and_returns_null_on_realloc_zero=true %run %t 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=allocator_frees_and_returns_null_on_realloc_zero=false %run %t 2>&1 | FileCheck %s --check-prefix=NO-FREE
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main() {
|
||||
void *p = malloc(42);
|
||||
p = realloc(p, 0);
|
||||
if (p) {
|
||||
// NO-FREE: Allocated something on realloc(p, 0)
|
||||
fprintf(stderr, "Allocated something on realloc(p, 0)\n");
|
||||
} else {
|
||||
// CHECK: realloc(p, 0) returned nullptr
|
||||
fprintf(stderr, "realloc(p, 0) returned nullptr\n");
|
||||
}
|
||||
free(p);
|
||||
}
|
||||
112
compiler-rt/test/memprof/TestCases/stress_dtls.c
Normal file
112
compiler-rt/test/memprof/TestCases/stress_dtls.c
Normal file
@ -0,0 +1,112 @@
|
||||
// REQUIRES: memprof-64-bits
|
||||
// Stress test dynamic TLS + dlopen + threads.
|
||||
//
|
||||
// RUN: %clangxx_memprof -x c -DSO_NAME=f0 %s -shared -o %t-f0.so -fPIC
|
||||
// RUN: %clangxx_memprof -x c -DSO_NAME=f1 %s -shared -o %t-f1.so -fPIC
|
||||
// RUN: %clangxx_memprof -x c -DSO_NAME=f2 %s -shared -o %t-f2.so -fPIC
|
||||
// RUN: %clangxx_memprof %s -ldl -pthread -o %t
|
||||
// RUN: %run %t 0 3
|
||||
// RUN: %run %t 2 3
|
||||
// RUN: %env_memprof_opts=verbosity=2 %run %t 10 2 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=verbosity=2:intercept_tls_get_addr=1 %run %t 10 2 2>&1 | FileCheck %s
|
||||
// RUN: %env_memprof_opts=verbosity=2:intercept_tls_get_addr=0 %run %t 10 2 2>&1 | FileCheck %s --check-prefix=CHECK0
|
||||
// CHECK: __tls_get_addr
|
||||
// CHECK: Creating thread 0
|
||||
// CHECK: __tls_get_addr
|
||||
// CHECK: Creating thread 1
|
||||
// CHECK: __tls_get_addr
|
||||
// CHECK: Creating thread 2
|
||||
// CHECK: __tls_get_addr
|
||||
// CHECK: Creating thread 3
|
||||
// CHECK: __tls_get_addr
|
||||
// Make sure that TLS slots don't leak
|
||||
// CHECK-NOT: num_live_dtls 5
|
||||
//
|
||||
// CHECK0-NOT: __tls_get_addr
|
||||
/*
|
||||
cc=your-compiler
|
||||
|
||||
$cc stress_dtls.c -pthread -ldl
|
||||
for((i=0;i<100;i++)); do
|
||||
$cc -fPIC -shared -DSO_NAME=f$i -o a.out-f$i.so stress_dtls.c;
|
||||
done
|
||||
./a.out 2 4 # <<<<<< 2 threads, 4 libs
|
||||
./a.out 3 50 # <<<<<< 3 threads, 50 libs
|
||||
*/
|
||||
#ifndef SO_NAME
|
||||
#define _GNU_SOURCE
|
||||
#include <assert.h>
|
||||
#include <dlfcn.h>
|
||||
#include <pthread.h>
|
||||
#include <stdint.h>
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
typedef void **(*f_t)();
|
||||
|
||||
__thread int my_tls;
|
||||
|
||||
#define MAX_N_FUNCTIONS 1000
|
||||
f_t Functions[MAX_N_FUNCTIONS];
|
||||
|
||||
void *PrintStuff(void *unused) {
|
||||
uintptr_t stack;
|
||||
// fprintf(stderr, "STACK: %p TLS: %p SELF: %p\n", &stack, &my_tls,
|
||||
// (void *)pthread_self());
|
||||
int i;
|
||||
for (i = 0; i < MAX_N_FUNCTIONS; i++) {
|
||||
if (!Functions[i])
|
||||
break;
|
||||
uintptr_t dtls = (uintptr_t)Functions[i]();
|
||||
fprintf(stderr, " dtls[%03d]: %lx\n", i, dtls);
|
||||
*(long *)dtls = 42; // check that this is writable.
|
||||
}
|
||||
return NULL;
|
||||
}
|
||||
|
||||
int main(int argc, char *argv[]) {
|
||||
int num_threads = 1;
|
||||
int num_libs = 1;
|
||||
if (argc >= 2)
|
||||
num_threads = atoi(argv[1]);
|
||||
if (argc >= 3)
|
||||
num_libs = atoi(argv[2]);
|
||||
assert(num_libs <= MAX_N_FUNCTIONS);
|
||||
|
||||
int lib;
|
||||
for (lib = 0; lib < num_libs; lib++) {
|
||||
char buf[4096];
|
||||
snprintf(buf, sizeof(buf), "%s-f%d.so", argv[0], lib);
|
||||
void *handle = dlopen(buf, RTLD_LAZY);
|
||||
if (!handle) {
|
||||
fprintf(stderr, "%s\n", dlerror());
|
||||
exit(1);
|
||||
}
|
||||
snprintf(buf, sizeof(buf), "f%d", lib);
|
||||
Functions[lib] = (f_t)dlsym(handle, buf);
|
||||
if (!Functions[lib]) {
|
||||
fprintf(stderr, "%s\n", dlerror());
|
||||
exit(1);
|
||||
}
|
||||
fprintf(stderr, "LIB[%03d] %s: %p\n", lib, buf, Functions[lib]);
|
||||
PrintStuff(0);
|
||||
|
||||
int i;
|
||||
for (i = 0; i < num_threads; i++) {
|
||||
pthread_t t;
|
||||
fprintf(stderr, "Creating thread %d\n", i);
|
||||
pthread_create(&t, 0, PrintStuff, 0);
|
||||
pthread_join(t, 0);
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
#else // SO_NAME
|
||||
#ifndef DTLS_SIZE
|
||||
#define DTLS_SIZE (1 << 17)
|
||||
#endif
|
||||
__thread void *huge_thread_local_array[DTLS_SIZE];
|
||||
void **SO_NAME() {
|
||||
return &huge_thread_local_array[0];
|
||||
}
|
||||
#endif
|
||||
38
compiler-rt/test/memprof/TestCases/test_malloc_load_store.c
Normal file
38
compiler-rt/test/memprof/TestCases/test_malloc_load_store.c
Normal file
@ -0,0 +1,38 @@
|
||||
// Check profile with a single malloc call and set of loads and stores. Ensures
|
||||
// we get the same profile regardless of whether the memory is deallocated
|
||||
// before exit.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts= %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// RUN: %clangxx_memprof -DFREE -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts= %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// This is actually:
|
||||
// Memory allocation stack id = STACKID
|
||||
// alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
|
||||
// but we need to look for them in the same CHECK to get the correct STACKID.
|
||||
// CHECK: Memory allocation stack id = [[STACKID:[0-9]+]]{{[[:space:]].*}}alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
|
||||
// CHECK-NEXT: access_count (ave/min/max): 20.00 / 20 / 20
|
||||
// CHECK-NEXT: lifetime (ave/min/max): [[AVELIFETIME:[0-9]+]].00 / [[AVELIFETIME]] / [[AVELIFETIME]]
|
||||
// CHECK-NEXT: num migrated: 0, num lifetime overlaps: 0, num same alloc cpu: 0, num same dealloc_cpu: 0
|
||||
// CHECK: Stack for id [[STACKID]]:
|
||||
// CHECK-NEXT: #0 {{.*}} in malloc
|
||||
// CHECK-NEXT: #1 {{.*}} in main {{.*}}:[[@LINE+6]]
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main() {
|
||||
int *p = (int *)malloc(10 * sizeof(int));
|
||||
for (int i = 0; i < 10; i++)
|
||||
p[i] = i;
|
||||
int j = 0;
|
||||
for (int i = 0; i < 10; i++)
|
||||
j += p[i];
|
||||
#ifdef FREE
|
||||
free(p);
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
48
compiler-rt/test/memprof/TestCases/test_memintrin.cpp
Normal file
48
compiler-rt/test/memprof/TestCases/test_memintrin.cpp
Normal file
@ -0,0 +1,48 @@
|
||||
// Check profile with calls to memory intrinsics.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// This is actually:
|
||||
// Memory allocation stack id = STACKIDP
|
||||
// alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
|
||||
// access_count (ave/min/max): 3.00 / 3 / 3
|
||||
// but we need to look for them in the same CHECK to get the correct STACKIDP.
|
||||
// CHECK-DAG: Memory allocation stack id = [[STACKIDP:[0-9]+]]{{[[:space:]].*}} alloc_count 1, size (ave/min/max) 40.00 / 40 / 40{{[[:space:]].*}} access_count (ave/min/max): 3.00 / 3 / 3
|
||||
//
|
||||
// This is actually:
|
||||
// Memory allocation stack id = STACKIDQ
|
||||
// alloc_count 1, size (ave/min/max) 20.00 / 20 / 20
|
||||
// access_count (ave/min/max): 2.00 / 2 / 2
|
||||
// but we need to look for them in the same CHECK to get the correct STACKIDQ.
|
||||
// CHECK-DAG: Memory allocation stack id = [[STACKIDQ:[0-9]+]]{{[[:space:]].*}} alloc_count 1, size (ave/min/max) 20.00 / 20 / 20{{[[:space:]].*}} access_count (ave/min/max): 2.00 / 2 / 2
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
int main() {
|
||||
// This is actually:
|
||||
// Stack for id STACKIDP:
|
||||
// #0 {{.*}} in operator new
|
||||
// #1 {{.*}} in main {{.*}}:@LINE+1
|
||||
// but we need to look for them in the same CHECK-DAG.
|
||||
// CHECK-DAG: Stack for id [[STACKIDP]]:{{[[:space:]].*}} #0 {{.*}} in operator new{{.*[[:space:]].*}} #1 {{.*}} in main {{.*}}:[[@LINE+1]]
|
||||
int *p = new int[10];
|
||||
|
||||
// This is actually:
|
||||
// Stack for id STACKIDQ:
|
||||
// #0 {{.*}} in operator new
|
||||
// #1 {{.*}} in main {{.*}}:@LINE+1
|
||||
// but we need to look for them in the same CHECK-DAG.
|
||||
// CHECK-DAG: Stack for id [[STACKIDQ]]:{{[[:space:]].*}} #0 {{.*}} in operator new{{.*[[:space:]].*}} #1 {{.*}} in main {{.*}}:[[@LINE+1]]
|
||||
int *q = new int[5];
|
||||
|
||||
memset(p, 1, 10);
|
||||
memcpy(q, p, 5);
|
||||
int x = memcmp(p, q, 5);
|
||||
|
||||
delete p;
|
||||
delete q;
|
||||
|
||||
return x;
|
||||
}
|
||||
42
compiler-rt/test/memprof/TestCases/test_new_load_store.cpp
Normal file
42
compiler-rt/test/memprof/TestCases/test_new_load_store.cpp
Normal file
@ -0,0 +1,42 @@
|
||||
// Check profile with a single new call and set of loads and stores. Ensures
|
||||
// we get the same profile regardless of whether the memory is deallocated
|
||||
// before exit.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts= %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// RUN: %clangxx_memprof -DFREE -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts= %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// Try again with callbacks instead of inline sequences
|
||||
// RUN: %clangxx_memprof -mllvm -memprof-use-callbacks -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts= %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// This is actually:
|
||||
// Memory allocation stack id = STACKID
|
||||
// alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
|
||||
// but we need to look for them in the same CHECK to get the correct STACKID.
|
||||
// CHECK: Memory allocation stack id = [[STACKID:[0-9]+]]{{[[:space:]].*}}alloc_count 1, size (ave/min/max) 40.00 / 40 / 40
|
||||
// CHECK-NEXT: access_count (ave/min/max): 20.00 / 20 / 20
|
||||
// CHECK-NEXT: lifetime (ave/min/max): [[AVELIFETIME:[0-9]+]].00 / [[AVELIFETIME]] / [[AVELIFETIME]]
|
||||
// CHECK-NEXT: num migrated: 0, num lifetime overlaps: 0, num same alloc cpu: 0, num same dealloc_cpu: 0
|
||||
// CHECK: Stack for id [[STACKID]]:
|
||||
// CHECK-NEXT: #0 {{.*}} in operator new
|
||||
// CHECK-NEXT: #1 {{.*}} in main {{.*}}:[[@LINE+6]]
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main() {
|
||||
int *p = new int[10];
|
||||
for (int i = 0; i < 10; i++)
|
||||
p[i] = i;
|
||||
int j = 0;
|
||||
for (int i = 0; i < 10; i++)
|
||||
j += p[i];
|
||||
#ifdef FREE
|
||||
delete p;
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
31
compiler-rt/test/memprof/TestCases/test_terse.cpp
Normal file
31
compiler-rt/test/memprof/TestCases/test_terse.cpp
Normal file
@ -0,0 +1,31 @@
|
||||
// Check terse format profile with a single malloc call and set of loads and
|
||||
// stores. Ensures we get the same profile regardless of whether the memory is
|
||||
// deallocated before exit.
|
||||
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=print_terse=1 %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// RUN: %clangxx_memprof -DFREE -O0 %s -o %t
|
||||
// RUN: %env_memprof_opts=print_terse=1 %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// CHECK: MIB:[[STACKID:[0-9]+]]/1/40.00/40/40/20.00/20/20/[[AVELIFETIME:[0-9]+]].00/[[AVELIFETIME]]/[[AVELIFETIME]]/0/0/0/0
|
||||
// CHECK: Stack for id [[STACKID]]:
|
||||
// CHECK-NEXT: #0 {{.*}} in operator new
|
||||
// CHECK-NEXT: #1 {{.*}} in main {{.*}}:[[@LINE+6]]
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
|
||||
int main() {
|
||||
int *p = new int[10];
|
||||
for (int i = 0; i < 10; i++)
|
||||
p[i] = i;
|
||||
int j = 0;
|
||||
for (int i = 0; i < 10; i++)
|
||||
j += p[i];
|
||||
#ifdef FREE
|
||||
delete p;
|
||||
#endif
|
||||
|
||||
return 0;
|
||||
}
|
||||
@ -0,0 +1,30 @@
|
||||
// RUN: %clangxx_memprof -O0 %s -o %t && %run %t 2>&1 | FileCheck %s
|
||||
|
||||
// This is actually:
|
||||
// Memory allocation stack id = STACKID
|
||||
// alloc_count 1, size (ave/min/max) 128.00 / 128 / 128
|
||||
// but we need to look for them in the same CHECK to get the correct STACKID.
|
||||
// CHECK: Memory allocation stack id = [[STACKID:[0-9]+]]{{[[:space:]].*}}alloc_count 1, size (ave/min/max) 128.00 / 128 / 128
|
||||
// CHECK-NEXT: access_count (ave/min/max): 7.00 / 7 / 7
|
||||
|
||||
#include <sanitizer/memprof_interface.h>
|
||||
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
int main(int argc, char **argv) {
|
||||
// CHECK: Stack for id [[STACKID]]:
|
||||
// CHECK-NEXT: #0 {{.*}} in operator new[](unsigned long)
|
||||
// CHECK-NEXT: #1 {{.*}} in main {{.*}}:[[@LINE+1]]
|
||||
char *x = new char[128];
|
||||
memset(x, 0xab, 128);
|
||||
__sanitizer_unaligned_load16(x + 15);
|
||||
__sanitizer_unaligned_load32(x + 15);
|
||||
__sanitizer_unaligned_load64(x + 15);
|
||||
|
||||
__sanitizer_unaligned_store16(x + 15, 0);
|
||||
__sanitizer_unaligned_store32(x + 15, 0);
|
||||
__sanitizer_unaligned_store64(x + 15, 0);
|
||||
|
||||
delete[] x;
|
||||
return 0;
|
||||
}
|
||||
103
compiler-rt/test/memprof/lit.cfg.py
Normal file
103
compiler-rt/test/memprof/lit.cfg.py
Normal file
@ -0,0 +1,103 @@
|
||||
# -*- Python -*-
|
||||
|
||||
import os
|
||||
import platform
|
||||
import re
|
||||
|
||||
import lit.formats
|
||||
|
||||
# Get shlex.quote if available (added in 3.3), and fall back to pipes.quote if
|
||||
# it's not available.
|
||||
try:
|
||||
import shlex
|
||||
sh_quote = shlex.quote
|
||||
except:
|
||||
import pipes
|
||||
sh_quote = pipes.quote
|
||||
|
||||
def get_required_attr(config, attr_name):
|
||||
attr_value = getattr(config, attr_name, None)
|
||||
if attr_value == None:
|
||||
lit_config.fatal(
|
||||
"No attribute %r in test configuration! You may need to run "
|
||||
"tests from your build directory or add this attribute "
|
||||
"to lit.site.cfg.py " % attr_name)
|
||||
return attr_value
|
||||
|
||||
# Setup config name.
|
||||
config.name = 'MemProfiler' + config.name_suffix
|
||||
|
||||
# Platform-specific default MEMPROF_OPTIONS for lit tests.
|
||||
default_memprof_opts = list(config.default_sanitizer_opts)
|
||||
|
||||
default_memprof_opts_str = ':'.join(default_memprof_opts)
|
||||
if default_memprof_opts_str:
|
||||
config.environment['MEMPROF_OPTIONS'] = default_memprof_opts_str
|
||||
config.substitutions.append(('%env_memprof_opts=',
|
||||
'env MEMPROF_OPTIONS=' + default_memprof_opts_str))
|
||||
|
||||
# Setup source root.
|
||||
config.test_source_root = os.path.dirname(__file__)
|
||||
|
||||
libdl_flag = '-ldl'
|
||||
|
||||
# Setup default compiler flags used with -fmemory-profile option.
|
||||
# FIXME: Review the set of required flags and check if it can be reduced.
|
||||
target_cflags = [get_required_attr(config, 'target_cflags')]
|
||||
target_cxxflags = config.cxx_mode_flags + target_cflags
|
||||
clang_memprof_static_cflags = (['-fmemory-profile',
|
||||
'-mno-omit-leaf-frame-pointer',
|
||||
'-fno-omit-frame-pointer',
|
||||
'-fno-optimize-sibling-calls'] +
|
||||
config.debug_info_flags + target_cflags)
|
||||
clang_memprof_static_cxxflags = config.cxx_mode_flags + clang_memprof_static_cflags
|
||||
|
||||
memprof_dynamic_flags = []
|
||||
if config.memprof_dynamic:
|
||||
memprof_dynamic_flags = ['-shared-libsan']
|
||||
config.available_features.add('memprof-dynamic-runtime')
|
||||
else:
|
||||
config.available_features.add('memprof-static-runtime')
|
||||
clang_memprof_cflags = clang_memprof_static_cflags + memprof_dynamic_flags
|
||||
clang_memprof_cxxflags = clang_memprof_static_cxxflags + memprof_dynamic_flags
|
||||
|
||||
def build_invocation(compile_flags):
|
||||
return ' ' + ' '.join([config.clang] + compile_flags) + ' '
|
||||
|
||||
config.substitutions.append( ("%clang ", build_invocation(target_cflags)) )
|
||||
config.substitutions.append( ("%clangxx ", build_invocation(target_cxxflags)) )
|
||||
config.substitutions.append( ("%clang_memprof ", build_invocation(clang_memprof_cflags)) )
|
||||
config.substitutions.append( ("%clangxx_memprof ", build_invocation(clang_memprof_cxxflags)) )
|
||||
if config.memprof_dynamic:
|
||||
shared_libmemprof_path = os.path.join(config.compiler_rt_libdir, 'libclang_rt.memprof{}.so'.format(config.target_suffix))
|
||||
config.substitutions.append( ("%shared_libmemprof", shared_libmemprof_path) )
|
||||
config.substitutions.append( ("%clang_memprof_static ", build_invocation(clang_memprof_static_cflags)) )
|
||||
config.substitutions.append( ("%clangxx_memprof_static ", build_invocation(clang_memprof_static_cxxflags)) )
|
||||
|
||||
# Some tests uses C++11 features such as lambdas and need to pass -std=c++11.
|
||||
config.substitutions.append(("%stdcxx11 ", '-std=c++11 '))
|
||||
|
||||
config.substitutions.append( ("%libdl", libdl_flag) )
|
||||
|
||||
config.available_features.add('memprof-' + config.bits + '-bits')
|
||||
|
||||
config.available_features.add('fast-unwinder-works')
|
||||
|
||||
# Set LD_LIBRARY_PATH to pick dynamic runtime up properly.
|
||||
new_ld_library_path = os.path.pathsep.join(
|
||||
(config.compiler_rt_libdir, config.environment.get('LD_LIBRARY_PATH', '')))
|
||||
config.environment['LD_LIBRARY_PATH'] = new_ld_library_path
|
||||
|
||||
# Default test suffixes.
|
||||
config.suffixes = ['.c', '.cpp']
|
||||
|
||||
config.substitutions.append(('%fPIC', '-fPIC'))
|
||||
config.substitutions.append(('%fPIE', '-fPIE'))
|
||||
config.substitutions.append(('%pie', '-pie'))
|
||||
|
||||
# Only run the tests on supported OSs.
|
||||
if config.host_os not in ['Linux']:
|
||||
config.unsupported = True
|
||||
|
||||
if not config.parallelism_group:
|
||||
config.parallelism_group = 'shadow-memory'
|
||||
15
compiler-rt/test/memprof/lit.site.cfg.py.in
Normal file
15
compiler-rt/test/memprof/lit.site.cfg.py.in
Normal file
@ -0,0 +1,15 @@
|
||||
@LIT_SITE_CFG_IN_HEADER@
|
||||
|
||||
# Tool-specific config options.
|
||||
config.name_suffix = "@MEMPROF_TEST_CONFIG_SUFFIX@"
|
||||
config.target_cflags = "@MEMPROF_TEST_TARGET_CFLAGS@"
|
||||
config.clang = "@MEMPROF_TEST_TARGET_CC@"
|
||||
config.bits = "@MEMPROF_TEST_BITS@"
|
||||
config.memprof_dynamic = @MEMPROF_TEST_DYNAMIC@
|
||||
config.target_arch = "@MEMPROF_TEST_TARGET_ARCH@"
|
||||
|
||||
# Load common config for all compiler-rt lit tests.
|
||||
lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/test/lit.common.configured")
|
||||
|
||||
# Load tool-specific config that would do the real work.
|
||||
lit_config.load_config(config, "@MEMPROF_LIT_SOURCE_DIR@/lit.cfg.py")
|
||||
Loading…
Reference in New Issue
Block a user