3e21ea1f65
This will not be used unless the C++ standard version is raised to 20. As concepts and C++20 more generally are quite new, this does not do so. Nevertheless, the use of concepts can improve the local development experience as type mismatches are discovered earlier (at template invocation rather than only during expansion).
331 lines
12 KiB
CMake
331 lines
12 KiB
CMake
cmake_minimum_required(VERSION 3.8)
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project(snmalloc C CXX)
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if (NOT CMAKE_BUILD_TYPE)
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message(STATUS "No build type selected, default to: Release")
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set(CMAKE_BUILD_TYPE "Release")
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endif()
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include(CheckCXXCompilerFlag)
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include(CheckCSourceCompiles)
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option(USE_SNMALLOC_STATS "Track allocation stats" OFF)
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option(SNMALLOC_CI_BUILD "Disable features not sensible for CI" OFF)
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option(USE_MEASURE "Measure performance with histograms" OFF)
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option(EXPOSE_EXTERNAL_PAGEMAP "Expose the global pagemap" OFF)
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option(EXPOSE_EXTERNAL_RESERVE "Expose an interface to reserve memory using the default memory provider" OFF)
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option(SNMALLOC_RUST_SUPPORT "Build static library for rust" OFF)
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option(SNMALLOC_STATIC_LIBRARY "Build static libraries" ON)
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option(SNMALLOC_QEMU_WORKAROUND "Disable using madvise(DONT_NEED) to zero memory on Linux" Off)
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option(SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE "Compile for current machine architecture" Off)
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set(CACHE_FRIENDLY_OFFSET OFF CACHE STRING "Base offset to place linked-list nodes.")
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set(SNMALLOC_STATIC_LIBRARY_PREFIX "sn_" CACHE STRING "Static library function prefix")
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CHECK_C_SOURCE_COMPILES("
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#include <malloc.h>
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size_t malloc_usable_size(const void* ptr) { return 0; }
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int main() { return 0; }
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" CONST_QUALIFIED_MALLOC_USABLE_SIZE)
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if ((CMAKE_BUILD_TYPE STREQUAL "Release") AND (NOT SNMALLOC_CI_BUILD))
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option(USE_POSIX_COMMIT_CHECKS "Instrument Posix PAL to check for access to unused blocks of memory." Off)
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else ()
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option(USE_POSIX_COMMIT_CHECKS "Instrument Posix PAL to check for access to unused blocks of memory." On)
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endif ()
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# Provide as macro so other projects can reuse
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macro(warnings_high)
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if(MSVC)
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# Force to always compile with W4
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if(CMAKE_CXX_FLAGS MATCHES "/W[0-4]")
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string(REGEX REPLACE "/W[0-4]" "/W4" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
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else()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /W4")
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endif()
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add_compile_options(/WX /wd4127 /wd4324 /wd4201)
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else()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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add_compile_options(-Wsign-conversion)
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endif ()
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add_compile_options(-Wall -Wextra -Werror -Wundef)
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endif()
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endmacro()
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macro(oe_simulate target)
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target_compile_definitions(${target} PRIVATE SNMALLOC_USE_SMALL_CHUNKS)
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endmacro()
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macro(clangformat_targets)
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# The clang-format tool is installed under a variety of different names. Try
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# to find a sensible one. Only look for versions 9 explicitly - we don't
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# know whether our clang-format file will work with newer versions of the
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# tool. It does not work with older versions as AfterCaseLabel is not supported
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# in earlier versions.
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find_program(CLANG_FORMAT NAMES
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clang-format-9)
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# If we've found a clang-format tool, generate a target for it, otherwise emit
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# a warning.
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if (${CLANG_FORMAT} STREQUAL "CLANG_FORMAT-NOTFOUND")
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message(WARNING "Not generating clangformat target, no clang-format tool found")
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else ()
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message(STATUS "Generating clangformat target using ${CLANG_FORMAT}")
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file(GLOB_RECURSE ALL_SOURCE_FILES *.cc *.h *.hh)
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# clangformat does not yet understand concepts well; for the moment, don't
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# ask it to format them. See https://reviews.llvm.org/D79773
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list(FILTER ALL_SOURCE_FILES EXCLUDE REGEX "src/pal/pal_concept\.h$")
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add_custom_target(
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clangformat
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COMMAND ${CLANG_FORMAT}
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-i
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${ALL_SOURCE_FILES})
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endif()
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endmacro()
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# The main target for snmalloc
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add_library(snmalloc_lib INTERFACE)
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target_include_directories(snmalloc_lib INTERFACE src/)
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if(NOT MSVC)
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find_package(Threads REQUIRED COMPONENTS snmalloc_lib)
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target_link_libraries(snmalloc_lib INTERFACE ${CMAKE_THREAD_LIBS_INIT})
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if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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target_link_libraries(snmalloc_lib INTERFACE atomic)
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endif()
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if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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# XXX elseif ARM?
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endif()
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endif()
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if (WIN32)
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set(WIN8COMPAT FALSE CACHE BOOL "Avoid Windows 10 APIs")
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if (WIN8COMPAT)
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target_compile_definitions(snmalloc_lib INTERFACE -DWINVER=0x0603)
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message(STATUS "snmalloc: Avoiding Windows 10 APIs")
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else()
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message(STATUS "snmalloc: Using Windows 10 APIs")
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# VirtualAlloc2 is exposed by mincore.lib, not Kernel32.lib (as the
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# documentation says)
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target_link_libraries(snmalloc_lib INTERFACE mincore)
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endif()
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endif()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "amd64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "AMD64")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86")
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target_compile_options(snmalloc_lib INTERFACE -mcx16)
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endif()
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endif ()
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# Have to set this globally, as can't be set on an interface target.
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set(CMAKE_CXX_STANDARD 17)
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if(USE_SNMALLOC_STATS)
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target_compile_definitions(snmalloc_lib INTERFACE -DUSE_SNMALLOC_STATS)
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endif()
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if(SNMALLOC_QEMU_WORKAROUND)
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target_compile_definitions(snmalloc_lib INTERFACE -DSNMALLOC_QEMU_WORKAROUND)
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endif()
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if(USE_MEASURE)
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target_compile_definitions(snmalloc_lib INTERFACE -DUSE_MEASURE)
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endif()
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if(SNMALLOC_CI_BUILD)
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target_compile_definitions(snmalloc_lib INTERFACE -DSNMALLOC_CI_BUILD)
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endif()
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if(CACHE_FRIENDLY_OFFSET)
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target_compile_definitions(snmalloc_lib INTERFACE -DCACHE_FRIENDLY_OFFSET=${CACHE_FRIENDLY_OFFSET})
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endif()
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if(USE_POSIX_COMMIT_CHECKS)
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target_compile_definitions(snmalloc_lib INTERFACE -DUSE_POSIX_COMMIT_CHECKS)
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endif()
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if(CONST_QUALIFIED_MALLOC_USABLE_SIZE)
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target_compile_definitions(snmalloc_lib INTERFACE -DMALLOC_USABLE_SIZE_QUALIFIER=const)
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endif()
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# To build with just the header library target define SNMALLOC_ONLY_HEADER_LIBRARY
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# in containing Cmake file.
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if(NOT DEFINED SNMALLOC_ONLY_HEADER_LIBRARY)
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warnings_high()
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if(MSVC)
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /Zi")
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set(CMAKE_EXE_LINKER_FLAGS_RELEASE "${CMAKE_EXE_LINKER_FLAGS_RELEASE} /DEBUG")
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else()
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add_compile_options(-fno-exceptions -fno-rtti -g -fomit-frame-pointer)
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# Static TLS model unsupported on Haiku
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if (NOT CMAKE_SYSTEM_NAME MATCHES "Haiku")
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add_compile_options(-ftls-model=initial-exec)
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endif()
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if(SNMALLOC_CI_BUILD OR (${CMAKE_BUILD_TYPE} MATCHES "Debug"))
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# Get better stack traces in CI and Debug.
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target_link_libraries(snmalloc_lib INTERFACE "-rdynamic")
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endif()
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if(SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE)
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check_cxx_compiler_flag(-march=native SUPPORT_MARCH_NATIVE)
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if (SUPPORT_MARCH_NATIVE)
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add_compile_options(-march=native)
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else()
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message(WARNING "Compiler does not support `-march=native` required by SNMALLOC_OPTIMISE_FOR_CURRENT_MACHINE")
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endif()
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endif()
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find_package(Backtrace)
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if(${Backtrace_FOUND})
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target_compile_definitions(snmalloc_lib INTERFACE -DBACKTRACE_HEADER="${Backtrace_HEADER}")
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target_link_libraries(snmalloc_lib INTERFACE ${Backtrace_LIBRARIES})
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target_include_directories(snmalloc_lib INTERFACE ${Backtrace_INCLUD_DIRS})
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endif()
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endif()
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macro(subdirlist result curdir)
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file(GLOB children LIST_DIRECTORIES true RELATIVE ${curdir} ${curdir}/*)
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set(dirlist "")
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foreach(child ${children})
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if(IS_DIRECTORY ${curdir}/${child})
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list(APPEND dirlist ${child})
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endif()
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endforeach()
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set(${result} ${dirlist})
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endmacro()
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macro(add_shim name type)
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add_library(${name} ${type} ${ARGN})
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target_link_libraries(${name} snmalloc_lib)
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if(NOT MSVC)
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target_compile_definitions(${name} PRIVATE "SNMALLOC_EXPORT=__attribute__((visibility(\"default\")))")
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endif()
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set_target_properties(${name} PROPERTIES CXX_VISIBILITY_PRESET hidden)
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if(EXPOSE_EXTERNAL_PAGEMAP)
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if(MSVC)
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target_compile_definitions(${name} PRIVATE /DSNMALLOC_EXPOSE_PAGEMAP)
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else()
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target_compile_definitions(${name} PRIVATE -DSNMALLOC_EXPOSE_PAGEMAP)
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endif()
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endif()
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if(EXPOSE_EXTERNAL_RESERVE)
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if(MSVC)
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target_compile_definitions(${name} PRIVATE /DSNMALLOC_EXPOSE_RESERVE)
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else()
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target_compile_definitions(${name} PRIVATE -DSNMALLOC_EXPOSE_RESERVE)
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endif()
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endif()
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# Ensure that we do not link against C++ stdlib when compiling shims.
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if(NOT MSVC)
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set_target_properties(${name} PROPERTIES LINKER_LANGUAGE C)
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endif()
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endmacro()
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if (SNMALLOC_STATIC_LIBRARY)
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add_shim(snmallocshim-static STATIC src/override/malloc.cc)
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add_shim(snmallocshim-1mib-static STATIC src/override/malloc.cc)
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add_shim(snmallocshim-16mib-static STATIC src/override/malloc.cc)
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target_compile_definitions(snmallocshim-16mib-static PRIVATE SNMALLOC_USE_LARGE_CHUNKS
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SNMALLOC_STATIC_LIBRARY_PREFIX=${SNMALLOC_STATIC_LIBRARY_PREFIX})
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target_compile_definitions(snmallocshim-static PRIVATE
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SNMALLOC_STATIC_LIBRARY_PREFIX=${SNMALLOC_STATIC_LIBRARY_PREFIX})
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target_compile_definitions(snmallocshim-1mib-static PRIVATE
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SNMALLOC_STATIC_LIBRARY_PREFIX=${SNMALLOC_STATIC_LIBRARY_PREFIX})
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endif ()
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if(NOT WIN32)
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set(SHARED_FILES src/override/new.cc src/override/malloc.cc)
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add_shim(snmallocshim SHARED ${SHARED_FILES})
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add_shim(snmallocshim-1mib SHARED ${SHARED_FILES})
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add_shim(snmallocshim-16mib SHARED ${SHARED_FILES})
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target_compile_definitions(snmallocshim-16mib PRIVATE SNMALOC_USE_LARGE_CHUNKS)
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# Build a shim with some settings from oe.
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add_shim(snmallocshim-oe SHARED ${SHARED_FILES})
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oe_simulate(snmallocshim-oe)
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endif()
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if(SNMALLOC_RUST_SUPPORT)
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add_shim(snmallocshim-rust STATIC src/override/rust.cc)
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add_shim(snmallocshim-1mib-rust STATIC src/override/rust.cc)
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add_shim(snmallocshim-16mib-rust STATIC src/override/rust.cc)
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target_compile_definitions(snmallocshim-16mib-rust PRIVATE SNMALLOC_USE_LARGE_CHUNKS)
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endif()
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enable_testing()
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set(TESTDIR ${CMAKE_CURRENT_SOURCE_DIR}/src/test)
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subdirlist(TEST_CATEGORIES ${TESTDIR})
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list(REVERSE TEST_CATEGORIES)
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foreach(TEST_CATEGORY ${TEST_CATEGORIES})
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subdirlist(TESTS ${TESTDIR}/${TEST_CATEGORY})
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foreach(TEST ${TESTS})
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foreach(SUPER_SLAB_SIZE 1;16;oe)
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unset(SRC)
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aux_source_directory(${TESTDIR}/${TEST_CATEGORY}/${TEST} SRC)
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set(TESTNAME "${TEST_CATEGORY}-${TEST}-${SUPER_SLAB_SIZE}")
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add_executable(${TESTNAME} ${SRC})
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if (${SUPER_SLAB_SIZE} EQUAL 16)
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target_compile_definitions(${TESTNAME} PRIVATE SNMALLOC_USE_LARGE_CHUNKS)
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endif()
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if (${SUPER_SLAB_SIZE} EQUAL oe)
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oe_simulate(${TESTNAME})
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endif()
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target_link_libraries(${TESTNAME} snmalloc_lib)
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if (${TEST} MATCHES "release-.*")
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message(STATUS "Adding test: ${TESTNAME} only for release configs")
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add_test(NAME ${TESTNAME} COMMAND ${TESTNAME} CONFIGURATIONS "Release")
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else()
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message(STATUS "Adding test: ${TESTNAME}")
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add_test(${TESTNAME} ${TESTNAME})
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endif()
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if (${TEST_CATEGORY} MATCHES "perf")
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message(STATUS "Single threaded test: ${TESTNAME}")
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set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
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endif()
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if(WIN32)
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# On Windows these tests use a lot of memory as it doesn't support
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# lazy commit.
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if (${TEST} MATCHES "two_alloc_types")
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message(STATUS "Single threaded test: ${TESTNAME}")
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set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
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endif()
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if (${TEST} MATCHES "fixed_region")
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message(STATUS "Single threaded test: ${TESTNAME}")
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set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
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endif()
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if (${TEST} MATCHES "memory")
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message(STATUS "Single threaded test: ${TESTNAME}")
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set_tests_properties(${TESTNAME} PROPERTIES PROCESSORS 4)
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endif()
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endif()
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if (${TEST_CATEGORY} MATCHES "func")
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target_compile_definitions(${TESTNAME} PRIVATE -DUSE_SNMALLOC_STATS)
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endif ()
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endforeach()
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endforeach()
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endforeach()
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clangformat_targets()
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endif()
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