diff options
Diffstat (limited to 'src/spdk/dpdk/config/meson.build')
| -rw-r--r-- | src/spdk/dpdk/config/meson.build | 284 |
1 files changed, 284 insertions, 0 deletions
diff --git a/src/spdk/dpdk/config/meson.build b/src/spdk/dpdk/config/meson.build new file mode 100644 index 000000000..43ab11310 --- /dev/null +++ b/src/spdk/dpdk/config/meson.build @@ -0,0 +1,284 @@ +# 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()) +dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int()) +if pver.get(2).contains('-rc') + rc_ver = pver.get(2).split('-rc') + dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int()) + dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc') + dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int()) +else + dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int()) + dpdk_conf.set_quoted('RTE_VER_SUFFIX', '') +# for actual, non-rc releases, set the release value to 99 to ensure releases +# have higher version numbers than their respective release candidates + dpdk_conf.set('RTE_VER_RELEASE', 99) +endif + +pmd_subdir_opt = get_option('drivers_install_subdir') +if pmd_subdir_opt.contains('<VERSION>') + pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>')) +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() +else + machine = get_option('machine') +endif + +# machine type 'default' is special, it defaults to the per arch agreed common +# minimal baseline needed for DPDK. +# That might not be the most optimized, but the most portable version while +# still being able to support the CPU features required for DPDK. +# This can be bumped up by the DPDK project, but it can never be an +# invariant like 'native' +if machine == 'default' + if host_machine.cpu_family().startswith('x86') + # matches the old pre-meson build systems default + machine = 'corei7' + elif host_machine.cpu_family().startswith('arm') + machine = 'armv7-a' + elif host_machine.cpu_family().startswith('aarch') + # arm64 manages defaults in config/arm/meson.build + machine = 'default' + elif host_machine.cpu_family().startswith('ppc') + machine = 'power8' + endif +endif + +dpdk_conf.set('RTE_MACHINE', machine) +machine_args = [] + +# ppc64 does not support -march= at all, use -mcpu and -mtune for that +if host_machine.cpu_family().startswith('ppc') + machine_args += '-mcpu=' + machine + machine_args += '-mtune=' + machine +else + machine_args += '-march=' + machine +endif + +toolchain = cc.get_id() +dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain) +dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1) + +dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8) + +if not is_windows + add_project_link_arguments('-Wl,--no-as-needed', language: 'c') +endif + +# 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('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 is_linux + link_lib = 'dl' +elif is_freebsd + link_lib = 'execinfo' +else + link_lib = '' +endif + +# if link_lib is empty, do not add it to project properties +if link_lib != '' + add_project_link_arguments('-l' + link_lib, language: 'c') + dpdk_extra_ldflags += '-l' + link_lib +endif + +# check for libraries used in multiple places in DPDK +has_libnuma = 0 +numa_dep = cc.find_library('numa', required: false) +if numa_dep.found() and cc.has_header('numaif.h') + dpdk_conf.set10('RTE_HAS_LIBNUMA', true) + has_libnuma = 1 + add_project_link_arguments('-lnuma', language: 'c') + dpdk_extra_ldflags += '-lnuma' +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 + +# for clang 32-bit compiles we need libatomic for 64-bit atomic ops +if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false + atomic_dep = cc.find_library('atomic', required: true) + add_project_link_arguments('-latomic', language: 'c') + dpdk_extra_ldflags += '-latomic' +endif + +# add -include rte_config to cflags +add_project_arguments('-include', 'rte_config.h', language: 'c') + +# enable extra warnings and disable any unwanted warnings +warning_flags = [ + # -Wall is added by meson by default, so add -Wextra only + '-Wextra', + + # additional warnings in alphabetical order + '-Wcast-qual', + '-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 cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0') +# FIXME: Bugzilla 396 + warning_flags += '-Wno-zero-length-bounds' +endif +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') + endif +endforeach + +# set other values pulled from the build options +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_ENABLE_TRACE_FP', get_option('enable_trace_fp')) +# 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) +dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true) + + +compile_time_cpuflags = [] +subdir(arch_subdir) +dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags)) + +# set the install path for the drivers +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', 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 |