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-rw-r--r--src/cmake/cpu.cmake46
1 files changed, 31 insertions, 15 deletions
diff --git a/src/cmake/cpu.cmake b/src/cmake/cpu.cmake
index 18a1210f541..25e966dcf7a 100644
--- a/src/cmake/cpu.cmake
+++ b/src/cmake/cpu.cmake
@@ -24,16 +24,21 @@ endmacro()
##############################################################################
# Cache line size
##############################################################################
-if(DEFINED VPP_CACHE_LINE_SIZE)
- # Cache line size assigned via cmake args
-elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)")
- set(VPP_CACHE_LINE_SIZE 128)
+
+if(DEFINED VPP_PLATFORM_CACHE_LINE_SIZE)
+ set(VPP_CACHE_LINE_SIZE ${VPP_PLATFORM_CACHE_LINE_SIZE})
else()
- set(VPP_CACHE_LINE_SIZE 64)
-endif()
+ if(DEFINED VPP_CACHE_LINE_SIZE)
+ # Cache line size assigned via cmake args
+ elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "^(aarch64.*|AARCH64.*)")
+ set(VPP_CACHE_LINE_SIZE 128)
+ else()
+ set(VPP_CACHE_LINE_SIZE 64)
+ endif()
-set(VPP_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE}
- CACHE STRING "Target CPU cache line size")
+ set(VPP_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE}
+ CACHE STRING "Target CPU cache line size")
+endif()
set_log2_cacheline_size(VPP_LOG2_CACHE_LINE_SIZE ${VPP_CACHE_LINE_SIZE})
@@ -57,7 +62,9 @@ endif()
# CPU optimizations and multiarch support
##############################################################################
-option(VPP_BUILD_NATIVE_ONLY "Build only for native CPU." OFF)
+if(NOT DEFINED VPP_PLATFORM)
+ option(VPP_BUILD_NATIVE_ONLY "Build only for native CPU." OFF)
+endif()
macro(add_vpp_march_variant v)
cmake_parse_arguments(ARG
@@ -104,14 +111,23 @@ macro(add_vpp_march_variant v)
endif()
endmacro()
-if(VPP_BUILD_NATIVE_ONLY)
+if(DEFINED VPP_PLATFORM)
+ if(DEFINED VPP_PLATFORM_MARCH_FLAGS)
+ set(VPP_DEFAULT_MARCH_FLAGS ${VPP_PLATFORM_MARCH_FLAGS})
+ check_c_compiler_flag(${VPP_DEFAULT_MARCH_FLAGS} compiler_flag_march)
+ if(NOT compiler_flag_march)
+ message(FATAL_ERROR "platform build with ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler")
+ endif()
+ else()
+ set(VPP_DEFAULT_MARCH_FLAGS "")
+ endif()
+ set(MARCH_VARIANTS_NAMES "platform-only")
+elseif(VPP_BUILD_NATIVE_ONLY)
set(VPP_BUILD_NATIVE_ARCH "native" CACHE STRING "native CPU -march= value.")
set(VPP_DEFAULT_MARCH_FLAGS -march=${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 ${VPP_DEFAULT_MARCH_FLAGS} is not supported by compiler")
- endif()
+ check_c_compiler_flag(${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()
set(MARCH_VARIANTS_NAMES "native-only")
elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64.*|x86_64.*|AMD64.*")