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Merge branch 'master' of ssh+git://git.axiodl.com/AxioDL/urde

This commit is contained in:
Phillip Stephens 2019-12-10 20:52:55 -08:00
parent 1a13f7e4ee 6233179de7
commit f46648f1ec
Signed by: Antidote
GPG Key ID: F8BEE4C83DACA60D
2 changed files with 60 additions and 16 deletions
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53
CMakeLists.txt
View File

@ -104,7 +104,10 @@ else()
#add_compile_definitions(_GLIBCXX_DEBUG=1)
endif()
if(${URDE_VECTOR_ISA} STREQUAL "avx2")
if(${URDE_VECTOR_ISA} STREQUAL "native")
add_compile_options(-march=native)
message(STATUS "Building with native ISA")
elseif(${URDE_VECTOR_ISA} STREQUAL "avx2")
add_compile_options(-mavx2)
message(STATUS "Building with AVX2 Vector ISA")
elseif(${URDE_VECTOR_ISA} STREQUAL "avx")
@ -156,20 +159,56 @@ if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
link_directories(/usr/local/lib)
endif()
if(("${CMAKE_BUILD_TYPE}" STREQUAL "Release" OR "${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo")
AND "${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
option(USE_LD_GOLD "Link with GNU Gold and enable LTO" ON)
else()
option(USE_LD_GOLD "Link with GNU Gold and enable LTO" OFF)
if("${CMAKE_SYSTEM_NAME}" STREQUAL "Linux")
if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
option(USE_LD_LLD "Link with LLD" ON)
elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
option(USE_LD_GOLD "Link with GNU Gold" ON)
endif()
if(USE_LD_GOLD AND ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU"))
include(CheckIPOSupported)
check_ipo_supported(RESULT LTO_SUPPORTED)
if(LTO_SUPPORTED AND ("${CMAKE_BUILD_TYPE}" STREQUAL "Release" OR "${CMAKE_BUILD_TYPE}" STREQUAL "RelWithDebInfo"))
option(USE_LTO "Enable LTO" ON)
else()
option(USE_LTO "Enable LTO" OFF)
endif()
else()
option(USE_LD_LLD "Link with LLD" OFF)
option(USE_LD_GOLD "Link with GNU Gold" OFF)
option(USE_LTO "Enable LTO" OFF)
endif()
if(USE_LD_LLD)
execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=lld -Wl,--version ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if("${LD_VERSION}" MATCHES "LLD")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=lld")
if(USE_LTO)
add_compile_options(-flto=thin)
add_link_options(-flto=thin)
message(STATUS "LLD linker enabled with LTO.")
else()
message(STATUS "LLD linker enabled.")
endif()
set(USE_LD_GOLD OFF)
else()
message(WARNING "LLD linker isn't available, using the default system linker.")
set(USE_LD_LLD OFF)
endif()
endif()
if(USE_LD_GOLD)
execute_process(COMMAND ${CMAKE_C_COMPILER} -fuse-ld=gold -Wl,--version ERROR_QUIET OUTPUT_VARIABLE LD_VERSION)
if("${LD_VERSION}" MATCHES "GNU gold")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -fuse-ld=gold -Wl,--disable-new-dtags")
if(USE_LTO)
add_compile_options(-flto=thin)
add_link_options(-flto=thin)
message(STATUS "GNU gold linker enabled with LTO.")
else()
message(STATUS "GNU gold linker enabled.")
endif()
set(USE_LD_LLD OFF)
else()
message(WARNING "GNU gold linker isn't available, using the default system linker.")
set(USE_LD_GOLD OFF)

7
README.md
View File

@ -41,9 +41,14 @@ cd urde-build
```sh
cmake -DCMAKE_BUILD_TYPE=Debug ../urde
make
make -j$(nproc)
```
CMake options:
- Build release optimized (better runtime performance): `-DCMAKE_BUILD_TYPE=Release`
- Use clang+lld (faster linking): `-DCMAKE_C_COMPILER=/usr/bin/clang -DCMAKE_CXX_COMPILER=/usr/bin/clang++`
- Optimize for current CPU (resulting binaries are not portable): `-DURDE_VECTOR_ISA=native`
#### Qt Creator
*(main development / debugging IDE)*