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BLAKE3/c/CMakeLists.txt
Henrik S. Gaßmann 4bb0466579 Refactor CMake buildsystem to be portable and modern
Aggreggate source files directly in the target instead of a proxy
variable.

Install CMake package config files in order to allow the project to be
found via `find_package()` by dependents.

Replace hard coded SIMD compiler flags with configurable options. Retain
the current GCC/Clang flags as defaults for these compilers. Add default
SIMD compiler flags for MSVC.

Remove hard coded compiler flags (including -fPIC). These are not
portable and should be set by the toolchain file or on the CLI.

- Guard ASM sources with triplet compatibility checks.
- Remove the `BLAKE3_STATIC` option in favor of [`BUILD_SHARED_LIBS`].

[`BUILD_SHARED_LIBS`]: https://cmake.org/cmake/help/v3.9/variable/BUILD_SHARED_LIBS.html
2023-05-23 14:48:45 -07:00

133 lines
4.8 KiB
CMake

cmake_minimum_required(VERSION 3.9)
project(libblake3
VERSION 0.1.0
DESCRIPTION "BLAKE3 C implementation"
LANGUAGES C ASM
)
include(GNUInstallDirs)
# default SIMD compiler flag configuration (can be overriden by toolchains or CLI)
if(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
set(BLAKE3_CFLAGS_SSE2 "/arch:SSE2" CACHE STRING "the compiler flags to enable SSE2")
# MSVC has no dedicated sse4.1 flag (see https://learn.microsoft.com/en-us/cpp/build/reference/arch-x86?view=msvc-170)
set(BLAKE3_CFLAGS_SSE4.1 "/arch:AVX" CACHE STRING "the compiler flags to enable SSE4.1")
set(BLAKE3_CFLAGS_AVX2 "/arch:AVX2" CACHE STRING "the compiler flags to enable AVX2")
set(BLAKE3_CFLAGS_AVX512 "/arch:AVX512" CACHE STRING "the compiler flags to enable AVX512")
elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU"
OR CMAKE_C_COMPILER_ID STREQUAL "Clang"
OR CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
set(BLAKE3_CFLAGS_SSE2 "-msse2" CACHE STRING "the compiler flags to enable SSE2")
set(BLAKE3_CFLAGS_SSE4.1 "-msse4.1" CACHE STRING "the compiler flags to enable SSE4.1")
set(BLAKE3_CFLAGS_AVX2 "-mavx2" CACHE STRING "the compiler flags to enable AVX2")
set(BLAKE3_CFLAGS_AVX512 "-mavx512f -mavx512vl" CACHE STRING "the compiler flags to enable AVX512")
set(BLAKE3_CFLAGS_NEON "-mfpu=neon" CACHE STRING "the compiler flags to enable NEON")
endif()
# library target
add_library(blake3
blake3.c
blake3_dispatch.c
blake3_portable.c
)
add_library(BLAKE3::blake3 ALIAS blake3)
# library configuration
target_include_directories(blake3 PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
set_target_properties(blake3 PROPERTIES
VERSION ${PROJECT_VERSION}
SOVERSION 0
)
# optional SIMD sources
if(CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64"
OR CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64")
if(CMAKE_C_COMPILER_ID STREQUAL "MSVC")
enable_language(ASM_MASM)
target_sources(blake3 PRIVATE
blake3_avx2_x86-64_windows_msvc.asm
blake3_avx512_x86-64_windows_msvc.asm
blake3_sse2_x86-64_windows_msvc.asm
blake3_sse41_x86-64_windows_msvc.asm
)
elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU"
OR CMAKE_C_COMPILER_ID STREQUAL "Clang"
OR CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
if (WIN32)
target_sources(blake3 PRIVATE
blake3_avx2_x86-64_windows_gnu.S
blake3_avx512_x86-64_windows_gnu.S
blake3_sse2_x86-64_windows_gnu.S
blake3_sse41_x86-64_windows_gnu.S
)
elseif(UNIX)
target_sources(blake3 PRIVATE
blake3_avx2_x86-64_unix.S
blake3_avx512_x86-64_unix.S
blake3_sse2_x86-64_unix.S
blake3_sse41_x86-64_unix.S
)
endif()
endif()
elseif((CMAKE_SYSTEM_PROCESSOR STREQUAL "i686"
OR CMAKE_SYSTEM_PROCESSOR STREQUAL "X86")
AND DEFINED BLAKE3_CFLAGS_SSE2
AND DEFINED BLAKE3_CFLAGS_SSE4.1
AND DEFINED BLAKE3_CFLAGS_AVX2
AND DEFINED BLAKE3_CFLAGS_AVX512)
target_sources(blake3 PRIVATE
blake3_avx2.c
blake3_avx512.c
blake3_sse2.c
blake3_sse41.c
)
set_source_files_properties(blake3_avx2.c PROPERTIES COMPILE_FLAGS "${BLAKE3_CFLAGS_AVX2}")
set_source_files_properties(blake3_avx512.c PROPERTIES COMPILE_FLAGS "${BLAKE3_CFLAGS_AVX512}")
set_source_files_properties(blake3_sse2.c PROPERTIES COMPILE_FLAGS "${BLAKE3_CFLAGS_SSE2}")
set_source_files_properties(blake3_sse41.c PROPERTIES COMPILE_FLAGS "${BLAKE3_CFLAGS_SSE4.1}")
elseif((ANDROID_ABI STREQUAL "armeabi-v7a"
OR CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64"
OR CMAKE_SYSTEM_PROCESSOR STREQUAL "arm64") # For M1 macs
AND DEFINED BLAKE3_CFLAGS_NEON)
target_sources(blake3 PRIVATE
blake3_neon.c
)
set_source_files_properties(blake3_dispatch.c PROPERTIES COMPILE_DEFINITIONS BLAKE3_USE_NEON=1)
set_source_files_properties(blake3_neon.c PROPERTIES COMPILE_FLAGS "${BLAKE3_CFLAGS_NEON}")
endif()
# cmake install support
install(FILES blake3.h DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
install(TARGETS blake3 EXPORT blake3-targets)
install(EXPORT blake3-targets
NAMESPACE BLAKE3::
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/blake3"
)
include(CMakePackageConfigHelpers)
configure_package_config_file(blake3-config.cmake.in
"${CMAKE_CURRENT_BINARY_DIR}/blake3-config.cmake"
INSTALL_DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/blake3"
)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/blake3-config-version.cmake"
VERSION ${libblake3_VERSION}
COMPATIBILITY SameMinorVersion # as long as libblake3_VERSION < 1.0.0
)
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/blake3-config.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/blake3-config-version.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/blake3"
)
configure_file(libblake3.pc.in libblake3.pc @ONLY)
install(FILES "${CMAKE_BINARY_DIR}/libblake3.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")