CMake: Update CMake script to modern standards
Note that I dropped quite a few things related to CFLAGS: - the -mfsrra / -mfsca discovery was clean cmake and could have stayed; but kos-cc already passes those flags, so -ffast-math is enough to enable the FSRRA / FSCA instructions. - -fomit-frame-pointer is also a default option of KOS. - -fexpensive-optimizations, -finline-functions and -fstrict-aliasing were redundant as they are enabled by the optimization level specified. - -ffp-contract=fast is the default when using GNU C, which we are here. Signed-off-by: Paul Cercueil <paul@crapouillou.net>
This commit is contained in:
Paul Cercueil
parent
e823205ebc
commit
cfaf24e5ee
144
CMakeLists.txt
144
CMakeLists.txt
@ -1,8 +1,15 @@
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cmake_minimum_required(VERSION 3.9)
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cmake_minimum_required(VERSION 3.17)
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project(GLdc)
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set(CMAKE_VERBOSE_MAKEFILE ON)
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if (NOT CMAKE_BUILD_TYPE)
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set(CMAKE_BUILD_TYPE RelWithDebInfo CACHE STRING "Type of build" FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS
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Debug Release RelWithDebInfo MinSizeRel
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)
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endif()
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# Options to control optional targets
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option(BUILD_SAMPLES "Build example/sample programs" ON)
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option(BUILD_TESTS "Build test executables" ON)
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@ -17,58 +24,18 @@ endif()
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include(CheckIPOSupported)
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check_ipo_supported(RESULT FLTO_SUPPORTED OUTPUT FLTO_ERROR)
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if(PLATFORM_DREAMCAST)
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include(kallistios)
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endif()
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# List of possible backends
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set_property(CACHE BACKEND PROPERTY STRINGS kospvr software)
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message("\nCompiling using backend: ${BACKEND}\n")
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string(TOUPPER ${BACKEND} BACKEND_UPPER)
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add_definitions(-DBACKEND_${BACKEND_UPPER})
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set(CMAKE_C_STANDARD 99)
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set(CMAKE_CXX_STANDARD 14)
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include_directories(include)
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if(NOT PLATFORM_DREAMCAST)
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set(FIND_LIBRARY_USE_LIB32_PATHS true)
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set(FIND_LIBRARY_USE_LIB64_PATHS false)
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else()
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include(CheckCCompilerFlag)
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check_c_compiler_flag("-mfsrra" COMPILER_HAS_FSRRA)
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check_c_compiler_flag("-mfsca" COMPILER_HAS_FSCA)
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if(COMPILER_HAS_FSRRA)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -mfsrra")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -mfsrra")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -mfsrra")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -mfsrra")
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endif()
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if(COMPILER_HAS_FSCA)
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -mfsca")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -mfsca")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -mfsca")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -mfsca")
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endif()
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -ffp-contract=fast -ffast-math")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -ffast-math")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -ffp-contract=fast -ffast-math")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -ffast-math")
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endif()
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set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
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set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -std=c++14 -O3 -g0 -s -fomit-frame-pointer -fstrict-aliasing")
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set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELWITHDEBINFO} -O3 -fexpensive-optimizations -fomit-frame-pointer -finline-functions")
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set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} -std=c++14 -O3 -fomit-frame-pointer -fstrict-aliasing")
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set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -O0 -g -Wall -Wextra")
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set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -O0 -g -Wall -Wextra")
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set(
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SOURCES
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add_library(GL STATIC
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containers/aligned_vector.c
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containers/named_array.c
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containers/stack.c
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@ -90,6 +57,26 @@ set(
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${CMAKE_CURRENT_BINARY_DIR}/version.c
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)
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set_target_properties(GL PROPERTIES
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COMPILE_DEFINITIONS -DBACKEND_${BACKEND_UPPER}
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C_STANDARD 99
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INTERPROCEDURAL_OPTIMIZATION ${FLTO_SUPPORTED}
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)
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target_include_directories(GL PUBLIC ${CMAKE_SOURCE_DIR}/include)
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if(NOT PLATFORM_DREAMCAST)
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target_compile_options(GL PUBLIC -m32)
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target_link_options(GL PUBLIC -m32)
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set(FIND_LIBRARY_USE_LIB32_PATHS true)
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set(FIND_LIBRARY_USE_LIB64_PATHS false)
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elseif ("${CMAKE_BUILD_TYPE}" STREQUAL Debug)
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target_compile_options(GL PRIVATE -Wall -Wextra)
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elseif("${CMAKE_BUILD_TYPE}" MATCHES Release|RelWithDebInfo)
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target_compile_options(GL PRIVATE -ffast-math)
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endif()
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execute_process(
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COMMAND git describe --abbrev=4 --dirty --always --tags
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OUTPUT_VARIABLE GLDC_VERSION
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@ -99,48 +86,27 @@ execute_process(
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configure_file(GL/version.c.in ${CMAKE_CURRENT_BINARY_DIR}/version.c)
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if(PLATFORM_DREAMCAST)
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set(SOURCES ${SOURCES} GL/platforms/sh4.c)
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target_sources(GL PRIVATE GL/platforms/sh4.c)
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else()
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find_package(PkgConfig)
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pkg_check_modules(SDL2 REQUIRED sdl2)
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target_link_libraries(GL PUBLIC ${SDL2_LIBRARIES})
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target_include_directories(GL PUBLIC ${SDL2_INCLUDE_DIRS})
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include_directories(${SDL2_INCLUDE_DIRS})
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link_libraries(${SDL2_LIBRARIES})
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set(
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SOURCES
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${SOURCES}
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target_sources(GL PRIVATE
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GL/platforms/software.c
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GL/platforms/software/edge_equation.c
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GL/platforms/software/parameter_equation.c
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)
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endif()
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add_library(GL STATIC ${SOURCES})
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if(FLTO_SUPPORTED)
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set_property(TARGET GL PROPERTY INTERPROCEDURAL_OPTIMIZATION TRUE)
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endif()
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if(NOT PLATFORM_DREAMCAST)
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set_target_properties(GL PROPERTIES
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COMPILE_OPTIONS "-m32"
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LINK_OPTIONS "-m32"
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)
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endif()
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link_libraries(m)
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include_directories(include)
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link_libraries(GL)
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function(gen_sample sample)
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set(SAMPLE_SRCS ${ARGN})
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set(GENROMFS "$ENV{KOS_BASE}/utils/genromfs/genromfs")
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set(BIN2O $ENV{KOS_BASE}/utils/bin2o/bin2o)
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set(ROMDISK_IMG "${CMAKE_SOURCE_DIR}/samples/${sample}/romdisk.img")
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set(ROMDISK_O "${CMAKE_SOURCE_DIR}/samples/${sample}/romdisk.o")
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set(ROMDISK_DIR "${CMAKE_SOURCE_DIR}/samples/${sample}/romdisk")
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add_executable(${sample} ${SAMPLE_SRCS})
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add_executable(${sample} ${ARGN})
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target_link_libraries(${sample} PRIVATE m GL)
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set_target_properties(${sample} PROPERTIES
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C_STANDARD 99
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CXX_STANDARD 14
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)
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if(FLTO_SUPPORTED)
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# FIXME: Cubes + LTO causes an ICE
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@ -152,32 +118,10 @@ function(gen_sample sample)
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if(PLATFORM_DREAMCAST)
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if(EXISTS "${CMAKE_SOURCE_DIR}/samples/${sample}/romdisk")
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message("Generating romdisk for sample: ${sample}")
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file(GLOB_RECURSE ROMDISK_FILES "${ROMDISK_DIR}/*")
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add_custom_command(
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OUTPUT ${ROMDISK_IMG}
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COMMAND ${GENROMFS} -f ${ROMDISK_IMG} -d ${ROMDISK_DIR} -v
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DEPENDS ${ROMDISK_FILES}
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)
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add_custom_command(
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OUTPUT ${ROMDISK_O}
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COMMAND ${BIN2O} romdisk.img romdisk romdisk.o
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DEPENDS ${ROMDISK_IMG}
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WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}/samples/${sample}"
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)
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add_custom_target(${sample}_romdisk DEPENDS ${ROMDISK_O})
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add_dependencies(${sample} ${sample}_romdisk)
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target_link_libraries(${sample} ${ROMDISK_O})
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kos_add_romdisk(${sample} ${CMAKE_SOURCE_DIR}/samples/${sample}/romdisk ${sample})
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else()
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message("No such romdisk for sample: ${sample} at 'samples/${sample}/romdisk'")
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endif()
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else()
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set_target_properties(${sample} PROPERTIES
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COMPILE_OPTIONS "-m32"
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LINK_OPTIONS "-m32"
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)
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endif()
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endfunction()
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