230 lines
8.4 KiB
CMake
230 lines
8.4 KiB
CMake
function(disable_compiler_warnings_for_target target)
|
|
if(MSVC)
|
|
target_compile_options(${target} PRIVATE "/W0")
|
|
else()
|
|
target_compile_options(${target} PRIVATE "-w")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(detect_operating_system)
|
|
message(STATUS "CMake Version: ${CMAKE_VERSION}")
|
|
message(STATUS "CMake System Name: ${CMAKE_SYSTEM_NAME}")
|
|
|
|
# LINUX wasn't added until CMake 3.25.
|
|
if (CMAKE_VERSION VERSION_LESS 3.25.0 AND CMAKE_SYSTEM_NAME MATCHES "Linux")
|
|
# Have to make it visible in this scope as well for below.
|
|
set(LINUX TRUE PARENT_SCOPE)
|
|
set(LINUX TRUE)
|
|
endif()
|
|
|
|
if(WIN32)
|
|
message(STATUS "Building for Windows.")
|
|
elseif(APPLE AND NOT IOS)
|
|
message(STATUS "Building for MacOS.")
|
|
elseif(LINUX)
|
|
message(STATUS "Building for Linux.")
|
|
elseif(BSD)
|
|
message(STATUS "Building for *BSD.")
|
|
else()
|
|
message(FATAL_ERROR "Unsupported platform.")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(detect_compiler)
|
|
if(MSVC AND CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
|
set(COMPILER_CLANG_CL TRUE PARENT_SCOPE)
|
|
set(IS_SUPPORTED_COMPILER TRUE PARENT_SCOPE)
|
|
message(STATUS "Building with Clang-CL.")
|
|
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Clang" OR CMAKE_CXX_COMPILER_ID STREQUAL "AppleClang")
|
|
set(COMPILER_CLANG TRUE PARENT_SCOPE)
|
|
set(IS_SUPPORTED_COMPILER TRUE PARENT_SCOPE)
|
|
message(STATUS "Building with Clang/LLVM.")
|
|
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
|
|
set(COMPILER_GCC TRUE PARENT_SCOPE)
|
|
set(IS_SUPPORTED_COMPILER FALSE PARENT_SCOPE)
|
|
message(STATUS "Building with GNU GCC.")
|
|
elseif(MSVC)
|
|
set(IS_SUPPORTED_COMPILER TRUE PARENT_SCOPE)
|
|
message(STATUS "Building with MSVC.")
|
|
else()
|
|
message(FATAL_ERROR "Unknown compiler: ${CMAKE_CXX_COMPILER_ID}")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(detect_architecture)
|
|
if(APPLE AND NOT "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "")
|
|
# Universal binaries.
|
|
if("x86_64" IN_LIST CMAKE_OSX_ARCHITECTURES)
|
|
message(STATUS "Building x86_64 MacOS binaries.")
|
|
set(CPU_ARCH_X64 TRUE PARENT_SCOPE)
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Xarch_x86_64 -msse4.1" PARENT_SCOPE)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Xarch_x86_64 -msse4.1" PARENT_SCOPE)
|
|
endif()
|
|
if("arm64" IN_LIST CMAKE_OSX_ARCHITECTURES)
|
|
message(STATUS "Building ARM64 MacOS binaries.")
|
|
set(CPU_ARCH_ARM64 TRUE PARENT_SCOPE)
|
|
endif()
|
|
elseif(("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "x86_64" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "amd64" OR
|
|
"${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "AMD64" OR "${CMAKE_OSX_ARCHITECTURES}" STREQUAL "x86_64") AND
|
|
CMAKE_SIZEOF_VOID_P EQUAL 8)
|
|
message(STATUS "Building x86_64 binaries.")
|
|
set(CPU_ARCH_X64 TRUE PARENT_SCOPE)
|
|
if(NOT MSVC OR CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -msse4.1" PARENT_SCOPE)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -msse4.1" PARENT_SCOPE)
|
|
endif()
|
|
elseif(("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm64") AND
|
|
CMAKE_SIZEOF_VOID_P EQUAL 8) # Might have an A64 kernel, e.g. Raspbian.
|
|
message(STATUS "Building ARM64 binaries.")
|
|
set(CPU_ARCH_ARM64 TRUE PARENT_SCOPE)
|
|
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "armv7-a" OR
|
|
"${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "armv7l" OR
|
|
(("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "aarch64" OR "${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "arm64")
|
|
AND CMAKE_SIZEOF_VOID_P EQUAL 4))
|
|
message(STATUS "Building ARM32 binaries.")
|
|
set(CPU_ARCH_ARM32 TRUE PARENT_SCOPE)
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -marm -march=armv7-a -mfpu=neon-vfpv4" PARENT_SCOPE)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -marm -march=armv7-a -mfpu=neon-vfpv4" PARENT_SCOPE)
|
|
elseif("${CMAKE_SYSTEM_PROCESSOR}" STREQUAL "riscv64")
|
|
message(STATUS "Building RISC-V 64 binaries.")
|
|
set(CPU_ARCH_RISCV64 TRUE PARENT_SCOPE)
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -finline-atomics" PARENT_SCOPE)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -finline-atomics" PARENT_SCOPE)
|
|
|
|
# Still need this, apparently.
|
|
link_libraries("-latomic")
|
|
|
|
if(NOT "${CMAKE_BUILD_TYPE}" STREQUAL "Debug")
|
|
# Frame pointers generate an annoying amount of code on leaf functions.
|
|
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fomit-frame-pointer" PARENT_SCOPE)
|
|
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fomit-frame-pointer" PARENT_SCOPE)
|
|
endif()
|
|
else()
|
|
message(FATAL_ERROR "Unknown system processor: ${CMAKE_SYSTEM_PROCESSOR}")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(detect_page_size)
|
|
# This is only needed for ARM64, or if the user hasn't overridden it explicitly.
|
|
if(NOT CPU_ARCH_ARM64 OR HOST_PAGE_SIZE)
|
|
return()
|
|
endif()
|
|
|
|
if(NOT LINUX)
|
|
# For universal Apple builds, we use preprocessor macros to determine page size.
|
|
# Similar for Windows, except it's always 4KB.
|
|
return()
|
|
endif()
|
|
|
|
if(CMAKE_CROSSCOMPILING)
|
|
message(WARNING "Cross-compiling and can't determine page size, assuming default.")
|
|
return()
|
|
endif()
|
|
|
|
message(STATUS "Determining host page size")
|
|
set(detect_page_size_file ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c)
|
|
file(WRITE ${detect_page_size_file} "
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
int main() {
|
|
int res = sysconf(_SC_PAGESIZE);
|
|
printf(\"%d\", res);
|
|
return (res > 0) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}")
|
|
try_run(
|
|
detect_page_size_run_result
|
|
detect_page_size_compile_result
|
|
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}
|
|
${detect_page_size_file}
|
|
RUN_OUTPUT_VARIABLE detect_page_size_output)
|
|
if(NOT detect_page_size_compile_result OR NOT detect_page_size_run_result EQUAL 0)
|
|
message(FATAL_ERROR "Could not determine host page size.")
|
|
else()
|
|
message(STATUS "Host page size: ${detect_page_size_output}")
|
|
set(HOST_PAGE_SIZE ${detect_page_size_output} CACHE STRING "Reported host page size")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(detect_cache_line_size)
|
|
# This is only needed for ARM64, or if the user hasn't overridden it explicitly.
|
|
if(NOT CPU_ARCH_ARM64 OR HOST_CACHE_LINE_SIZE)
|
|
return()
|
|
endif()
|
|
|
|
if(NOT LINUX)
|
|
# For universal Apple builds, we use preprocessor macros to determine page size.
|
|
# Similar for Windows, except it's always 64 bytes.
|
|
return()
|
|
endif()
|
|
|
|
if(CMAKE_CROSSCOMPILING)
|
|
message(WARNING "Cross-compiling and can't determine page size, assuming default.")
|
|
return()
|
|
endif()
|
|
|
|
message(STATUS "Determining host cache line size")
|
|
set(detect_cache_line_size_file ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/src.c)
|
|
file(WRITE ${detect_cache_line_size_file} "
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
int main() {
|
|
int l1i = sysconf(_SC_LEVEL1_DCACHE_LINESIZE);
|
|
int l1d = sysconf(_SC_LEVEL1_ICACHE_LINESIZE);
|
|
int res = (l1i > l1d) ? l1i : l1d;
|
|
for (int index = 0; index < 16; index++) {
|
|
char buf[128];
|
|
snprintf(buf, sizeof(buf), \"/sys/devices/system/cpu/cpu0/cache/index%d/coherency_line_size\", index);
|
|
FILE* fp = fopen(buf, \"rb\");
|
|
if (!fp)
|
|
break;
|
|
fread(buf, sizeof(buf), 1, fp);
|
|
fclose(fp);
|
|
int val = atoi(buf);
|
|
res = (val > res) ? val : res;
|
|
}
|
|
printf(\"%d\", res);
|
|
return (res > 0) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
}")
|
|
try_run(
|
|
detect_cache_line_size_run_result
|
|
detect_cache_line_size_compile_result
|
|
${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}
|
|
${detect_cache_line_size_file}
|
|
RUN_OUTPUT_VARIABLE detect_cache_line_size_output)
|
|
if(NOT detect_cache_line_size_compile_result OR NOT detect_cache_line_size_run_result EQUAL 0)
|
|
message(FATAL_ERROR "Could not determine host cache line size.")
|
|
else()
|
|
message(STATUS "Host cache line size: ${detect_cache_line_size_output}")
|
|
set(HOST_CACHE_LINE_SIZE ${detect_cache_line_size_output} CACHE STRING "Reported host cache line size")
|
|
endif()
|
|
endfunction()
|
|
|
|
function(get_scm_version)
|
|
if(SCM_VERSION)
|
|
return()
|
|
endif()
|
|
|
|
find_package(Git)
|
|
if(EXISTS "${PROJECT_SOURCE_DIR}/.git" AND GIT_FOUND)
|
|
execute_process(
|
|
COMMAND ${GIT_EXECUTABLE} describe --dirty
|
|
WORKING_DIRECTORY "${PROJECT_SOURCE_DIR}"
|
|
OUTPUT_VARIABLE LOCAL_SCM_VERSION
|
|
OUTPUT_STRIP_TRAILING_WHITESPACE
|
|
)
|
|
endif()
|
|
if(NOT LOCAL_SCM_VERSION)
|
|
set(SCM_VERSION "unknown" PARENT_SCOPE)
|
|
else()
|
|
set(SCM_VERSION ${LOCAL_SCM_VERSION} PARENT_SCOPE)
|
|
endif()
|
|
endfunction()
|
|
|
|
function(install_imported_dep_library name)
|
|
get_target_property(SONAME "${name}" IMPORTED_SONAME_RELEASE)
|
|
get_target_property(LOCATION "${name}" IMPORTED_LOCATION_RELEASE)
|
|
install(FILES "${LOCATION}" RENAME "${SONAME}" DESTINATION "${CMAKE_INSTALL_PREFIX}")
|
|
endfunction()
|