diff options
| author |   Damjan Marion <damarion@cisco.com> | 2023-08-31 17:00:16 +0200 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2023-09-06 18:57:54 +0000 |
| commit | f0fc65a4b949a6e5a44250d405ce219b8e547859 (patch) | |
| tree | ffde22b15d7c9f8a6b5fbbdad7dabfeef5a5ab86 /src/cmake/cpu.cmake | |
| parent | 579a6fb89baf325d96fe49bc52e9fec5f98a780c (diff) | |
build: add option to specify native -march= flag with VPP_BUILD_NATIVE_ARCH
Type: improvement
Change-Id: I98eeba1ad2f9ed0531a7c615e0e70e535f24f813
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/cmake/cpu.cmake')
| -rw-r--r-- | src/cmake/cpu.cmake | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index b54155d4bb3..69f83c98b8d 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -59,13 +59,6 @@ endif() option(VPP_BUILD_NATIVE_ONLY "Build only for native CPU." OFF) -if(VPP_BUILD_NATIVE_ONLY) - check_c_compiler_flag("-march=native" compiler_flag_march_native) - if(NOT compiler_flag_march_native) - message(FATAL_ERROR "Native-only build not supported by compiler") - endif() -endif() - macro(add_vpp_march_variant v) cmake_parse_arguments(ARG "OFF" @@ -112,7 +105,14 @@ macro(add_vpp_march_variant v) endmacro() if(VPP_BUILD_NATIVE_ONLY) - set(VPP_DEFAULT_MARCH_FLAGS -march=native) + set(VPP_BUILD_NATIVE_ARCH "native" CACHE STRING "native CPU -march= value.") + set(VPP_DEFAULT_MARCH_FLAGS -march=${VPP_BUILD_NATIVE_ARCH}) + if(VPP_BUILD_NATIVE_ONLY) + check_c_compiler_flag(${VPP_DEFAULT_MARCH_FLAGS} compiler_flag_march) + if(NOT compiler_flag_march) + message(FATAL_ERROR "Native-only build with ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler") + endif() + endif() set(MARCH_VARIANTS_NAMES "native-only") elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") set(VPP_DEFAULT_MARCH_FLAGS -march=corei7 -mtune=corei7-avx) |