X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=config%2Fmeson.build;h=abedd76f23f10e0b841393590e0902a10607b757;hb=585c22edb29cc3cfdb3628c41effd8ff3b75f224;hp=483139b100af7a7c52c0585506793355b0c22dce;hpb=98edcbb5ab2f06eabb691c67613e65a8405c55b1;p=dpdk.git diff --git a/config/meson.build b/config/meson.build index 483139b100..abedd76f23 100644 --- a/config/meson.build +++ b/config/meson.build @@ -1,10 +1,42 @@ # SPDX-License-Identifier: BSD-3-Clause # Copyright(c) 2017-2019 Intel Corporation +# check the OS is supported, rather than going any further +supported_exec_envs = ['freebsd', 'linux', 'windows'] +exec_env = host_machine.system() +if not supported_exec_envs.contains(exec_env) + error('unsupported system type "@0@"'.format(exec_env)) +endif + +# define a handy variable for checking which OS we have. +# gives us "is_windows", "is_freebsd" and "is_linux" +foreach env:supported_exec_envs + set_variable('is_' + env, exec_env == env) +endforeach + +# MS linker requires special treatment. +# TODO: use cc.get_linker_id() with Meson >= 0.54 +is_ms_linker = is_windows and (cc.get_id() == 'clang') + # set the major version, which might be used by drivers and libraries # depending on the configuration options pver = meson.project_version().split('.') major_version = '@0@.@1@'.format(pver.get(0), pver.get(1)) +abi_version = run_command(find_program('cat', 'more'), + abi_version_file).stdout().strip() + +# Regular libraries have the abi_version as the filename extension +# and have the soname be all but the final part of the abi_version. +# Experimental libraries have soname with '0.major' +# and the filename suffix as 0.majorminor versions, +# e.g. v20.1 => librte_stable.so.20.1, librte_experimental.so.0.201 +# sonames => librte_stable.so.20, librte_experimental.so.0.20 +# e.g. v20.0.1 => librte_stable.so.20.0.1, librte_experimental.so.0.2001 +# sonames => librte_stable.so.20.0, librte_experimental.so.0.200 +abi_va = abi_version.split('.') +stable_so_version = abi_va.length() == 2 ? abi_va[0] : abi_va[0] + '.' + abi_va[1] +experimental_abi_version = '0.' + abi_va[0] + abi_va[1] + '.' + abi_va[2] +experimental_so_version = experimental_abi_version # extract all version information into the build configuration dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int()) @@ -24,11 +56,18 @@ endif pmd_subdir_opt = get_option('drivers_install_subdir') if pmd_subdir_opt.contains('') - pmd_subdir_opt = major_version.join(pmd_subdir_opt.split('')) + pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('')) endif driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt) eal_pmd_path = join_paths(get_option('prefix'), driver_install_path) +# driver .so files often depend upon the bus drivers for their connect bus, +# e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need +# to be in the library path, so symlink the drivers from the main lib directory. +meson.add_install_script('../buildtools/symlink-drivers-solibs.sh', + get_option('libdir'), + pmd_subdir_opt) + # set the machine type and cflags for it if meson.is_cross_build() machine = host_machine.cpu() @@ -73,24 +112,27 @@ dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1) dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8) -add_project_link_arguments('-Wl,--no-as-needed', language: 'c') -dpdk_extra_ldflags += '-Wl,--no-as-needed' +if not is_windows + add_project_link_arguments('-Wl,--no-as-needed', language: 'c') +endif -# use pthreads -add_project_link_arguments('-pthread', language: 'c') -dpdk_extra_ldflags += '-pthread' +# use pthreads if available for the platform +if not is_ms_linker + add_project_link_arguments('-pthread', language: 'c') + dpdk_extra_ldflags += '-pthread' +endif # on some OS, maths functions are in a separate library -if cc.find_library('libm', required : false).found() +if cc.find_library('m', required : false).found() # some libs depend on maths lib add_project_link_arguments('-lm', language: 'c') dpdk_extra_ldflags += '-lm' endif # for linux link against dl, for bsd execinfo -if host_machine.system() == 'linux' +if is_linux link_lib = 'dl' -elif host_machine.system() == 'freebsd' +elif is_freebsd link_lib = 'execinfo' else link_lib = '' @@ -112,12 +154,23 @@ if numa_dep.found() and cc.has_header('numaif.h') dpdk_extra_ldflags += '-lnuma' endif -# check for strlcpy -if host_machine.system() == 'linux' - libbsd = dependency('libbsd', required: false) - if libbsd.found() - dpdk_conf.set('RTE_USE_LIBBSD', 1) - endif +# check for libbsd +libbsd = dependency('libbsd', required: false) +if libbsd.found() + dpdk_conf.set('RTE_USE_LIBBSD', 1) +endif + +# check for pcap +pcap_dep = dependency('pcap', required: false) +if pcap_dep.found() + # pcap got a pkg-config file only in 1.9.0 and before that meson uses + # an internal pcap-config finder, which is not compatible with + # cross-compilation, so try to fallback to find_library + pcap_dep = cc.find_library('pcap', required: false) +endif +if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep) + dpdk_conf.set('RTE_PORT_PCAP', 1) + dpdk_extra_ldflags += '-lpcap' endif # add -include rte_config to cflags @@ -125,14 +178,39 @@ add_project_arguments('-include', 'rte_config.h', language: 'c') # enable extra warnings and disable any unwanted warnings warning_flags = [ - '-Wsign-compare', + # -Wall is added by meson by default, so add -Wextra only + '-Wextra', + + # additional warnings in alphabetical order '-Wcast-qual', - '-Wno-address-of-packed-member' + '-Wdeprecated', + '-Wformat-nonliteral', + '-Wformat-security', + '-Wmissing-declarations', + '-Wmissing-prototypes', + '-Wnested-externs', + '-Wold-style-definition', + '-Wpointer-arith', + '-Wsign-compare', + '-Wstrict-prototypes', + '-Wundef', + '-Wwrite-strings', + + # globally disabled warnings + '-Wno-address-of-packed-member', + '-Wno-packed-not-aligned', + '-Wno-missing-field-initializers' ] if not dpdk_conf.get('RTE_ARCH_64') # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!! warning_flags += '-Wno-pointer-to-int-cast' endif +if cc.get_id() == 'intel' + warning_ids = [188, 2203, 2279, 2557, 3179, 3656] + foreach i:warning_ids + warning_flags += '-diag-disable=@0@'.format(i) + endforeach +endif foreach arg: warning_flags if cc.has_argument(arg) add_project_arguments(arg, language: 'c') @@ -144,7 +222,6 @@ dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores')) dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes')) dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports')) dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet')) -dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id')) # values which have defaults which may be overridden dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64) dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64) @@ -168,4 +245,35 @@ dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path) install_headers('rte_config.h', subdir: get_option('include_subdir_arch')) # enable VFIO only if it is linux OS -dpdk_conf.set('RTE_EAL_VFIO', host_machine.system() == 'linux') +dpdk_conf.set('RTE_EAL_VFIO', is_linux) + +# specify -D_GNU_SOURCE unconditionally +add_project_arguments('-D_GNU_SOURCE', language: 'c') + +# specify -D__BSD_VISIBLE for FreeBSD +if is_freebsd + add_project_arguments('-D__BSD_VISIBLE', language: 'c') +endif + +if is_windows + # Minimum supported API is Windows 7. + add_project_arguments('-D_WIN32_WINNT=0x0601', language: 'c') + + # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting. + if cc.get_id() == 'gcc' + add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c') + endif +endif + +if get_option('b_lto') + if cc.has_argument('-ffat-lto-objects') + add_project_arguments('-ffat-lto-objects', language: 'c') + else + error('compiler does not support fat LTO objects - please turn LTO off') + endif + # workaround for gcc bug 81440 + if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0') + add_project_arguments('-Wno-lto-type-mismatch', language: 'c') + add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c') + endif +endif