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https://github.com/ceph/ceph
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1a6877dc04
we build dpdk as static library, linking against them without specifying --whole-archive will get the constructor symbols droppped by the linker as they are not referenced directly by the excecutable. so we need to do so to make sure we call all the constructors. Signed-off-by: Kefu Chai <kchai@redhat.com>
138 lines
4.7 KiB
CMake
138 lines
4.7 KiB
CMake
function(do_build_dpdk dpdk_dir)
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# mk/machine/native/rte.vars.mk
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# rte_cflags are extracted from mk/machine/${machine}/rte.vars.mk
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# only 3 of them have -march=<arch> defined, so copying them here.
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# we need to pass the -march=<arch> to ${cc} as some headers in dpdk
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# require it to compile. for instance, dpdk/include/rte_memcpy.h.
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if(CMAKE_SYSTEM_PROCESSOR MATCHES "i386")
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set(arch "x86_64")
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set(machine "default")
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set(machine_tmpl "native")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "i686")
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set(arch "i686")
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set(machine "default")
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set(machine_tmpl "native")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "amd64|x86_64|AMD64")
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set(arch "x86_64")
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set(machine "default")
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set(machine_tmpl "native")
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set(rte_cflags "-march=core2")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "arm|ARM")
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set(arch "arm")
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set(machine "armv7a")
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set(machine_tmpl "armv7a")
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set(rte_cflags "-march=armv7-a")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64|AARCH64")
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set(arch "arm64")
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set(machine "armv8a")
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set(machine_tmpl "armv8a")
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set(rte_cflags "-march=armv8-a+crc")
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elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(powerpc|ppc)64")
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set(arch "ppc_64")
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set(machine "power8")
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set(machine_tmpl "power8")
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else()
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message(FATAL_ERROR "not able to build DPDK support: "
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"unknown arch \"${CMAKE_SYSTEM_PROCESSOR}\"")
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endif()
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set(dpdk_rte_CFLAGS "${rte_cflags}" CACHE INTERNAL "")
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if(CMAKE_SYSTEM_NAME MATCHES "Linux")
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set(execenv "linuxapp")
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elseif(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
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set(execenv "bsdapp")
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else()
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message(FATAL_ERROR "not able to build DPDK support: "
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"unsupported OS \"${CMAKE_SYSTEM_NAME}\"")
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endif()
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if(CMAKE_C_COMPILER_ID STREQUAL GNU)
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set(toolchain "gcc")
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elseif(CMAKE_C_COMPILER_ID STREQUAL Clang)
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set(toolchain "clang")
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elseif(CMAKE_C_COMPILER_ID STREQUAL Intel)
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set(toolchain "icc")
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else()
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message(FATAL_ERROR "not able to build DPDK support: "
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"unknown compiler \"${CMAKE_C_COMPILER_ID}\"")
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endif()
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set(target "${arch}-${machine_tmpl}-${execenv}-${toolchain}")
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execute_process(
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COMMAND ${CMAKE_MAKE_PROGRAM} showconfigs
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WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/src/spdk/dpdk
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OUTPUT_VARIABLE supported_targets
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OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REPLACE "\n" ";" supported_targets "${supported_targets}")
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list(FIND supported_targets ${target} found)
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if(found EQUAL -1)
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message(FATAL_ERROR "not able to build DPDK support: "
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"unsupported target. "
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"\"${target}\" not listed in ${supported_targets}")
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endif()
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include(ExternalProject)
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ExternalProject_Add(dpdk-ext
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SOURCE_DIR ${CMAKE_SOURCE_DIR}/src/spdk/dpdk
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CONFIGURE_COMMAND $(MAKE) config O=${dpdk_dir} T=${target}
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BUILD_COMMAND env CC=${CMAKE_C_COMPILER} $(MAKE) O=${dpdk_dir} EXTRA_CFLAGS=-fPIC
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BUILD_IN_SOURCE 1
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INSTALL_COMMAND "true")
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ExternalProject_Add_Step(dpdk-ext patch-config
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COMMAND ${CMAKE_MODULE_PATH}/patch-dpdk-conf.sh ${dpdk_dir} ${machine} ${arch}
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DEPENDEES configure
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DEPENDERS build)
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# easier to adjust the config
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ExternalProject_Add_StepTargets(dpdk-ext configure patch-config build)
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endfunction()
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macro(build_dpdk)
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set(DPDK_DIR ${CMAKE_BINARY_DIR}/src/dpdk)
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do_build_dpdk(${DPDK_DIR})
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set(DPDK_INCLUDE_DIR ${DPDK_DIR}/include)
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# create the directory so cmake won't complain when looking at the imported
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# target
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file(MAKE_DIRECTORY ${DPDK_INCLUDE_DIR})
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if(NOT TARGET dpdk::cflags)
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add_library(dpdk::cflags INTERFACE IMPORTED)
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if (dpdk_rte_CFLAGS)
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set_target_properties(dpdk::cflags PROPERTIES
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INTERFACE_COMPILE_OPTIONS "${dpdk_rte_CFLAGS}")
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endif()
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endif()
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foreach(c
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bus_pci
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eal
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mempool
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mempool_ring
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mempool_stack
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pci
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ring)
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add_library(dpdk::${c} STATIC IMPORTED)
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add_dependencies(dpdk::${c} dpdk-ext)
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set(dpdk_${c}_LIBRARY
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"${DPDK_DIR}/lib/${CMAKE_STATIC_LIBRARY_PREFIX}rte_${c}${CMAKE_STATIC_LIBRARY_SUFFIX}")
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set_target_properties(dpdk::${c} PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES ${DPDK_INCLUDE_DIR}
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INTERFACE_LINK_LIBRARIES dpdk::cflags
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IMPORTED_LOCATION "${dpdk_${c}_LIBRARY}")
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list(APPEND DPDK_LIBRARIES dpdk::${c})
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list(APPEND DPDK_ARCHIVES "${dpdk_${c}_LIBRARY}")
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endforeach()
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add_library(dpdk::dpdk INTERFACE IMPORTED)
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add_dependencies(dpdk::dpdk
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${DPDK_LIBRARIES})
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# workaround for https://gitlab.kitware.com/cmake/cmake/issues/16947
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set_target_properties(dpdk::dpdk PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES ${DPDK_INCLUDE_DIR}
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INTERFACE_LINK_LIBRARIES
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"-Wl,--whole-archive $<JOIN:${DPDK_ARCHIVES}, > -Wl,--no-whole-archive")
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if(dpdk_rte_CFLAGS)
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set_target_properties(dpdk::dpdk PROPERTIES
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INTERFACE_COMPILE_OPTIONS "${dpdk_rte_CFLAGS}")
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endif()
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endmacro()
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