diff options
| author |   Damjan Marion <damarion@cisco.com> | 2022-04-25 12:38:40 +0200 |
|---|---|---|
| committer | Damjan Marion <damarion@cisco.com> | 2022-04-25 13:49:37 +0200 |
| commit | 45e05396399b7ead25d87e79a806f0c03b78965b (patch) | |
| tree | bcd50ce7d197e2351d2f1d1816b9428111dd7825 /src/cmake/cpu.cmake | |
| parent | 4e6222d598d5ec9db1b1e06bb3a45aca76a37daa (diff) | |
build: add option to build only for native CPU
Significantly reduces compilation time for uses who are interested
to run binaries only on the build machine.
Type: make
Change-Id: I431f6f7374b6dfa8b3f7c72dc69f3d5cafd1f6bb
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, 15 insertions, 1 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake index dbe0f17b94f..7fb7b591851 100644 --- a/src/cmake/cpu.cmake +++ b/src/cmake/cpu.cmake @@ -56,6 +56,16 @@ endif() ############################################################################## # CPU optimizations and multiarch support ############################################################################## + +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" @@ -93,6 +103,7 @@ macro(add_vpp_march_variant v) endif() if (VPP_MARCH_VARIANT_${uv}) list(APPEND MARCH_VARIANTS "${v}\;${fs}") + list(APPEND MARCH_VARIANTS_NAMES "${v}") else() list(APPEND MARCH_VARIANTS_DISABLED "${v}\;${fs}") endif() @@ -100,7 +111,10 @@ macro(add_vpp_march_variant v) endif() endmacro() -if(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*") +if(VPP_BUILD_NATIVE_ONLY) + set(VPP_DEFAULT_MARCH_FLAGS -march=native) + 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) add_vpp_march_variant(hsw |