1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017-2019 Intel Corporation
4 # check the OS is supported, rather than going any further
5 supported_exec_envs = ['freebsd', 'linux', 'windows']
6 exec_env = host_machine.system()
7 if not supported_exec_envs.contains(exec_env)
8 error('unsupported system type "@0@"'.format(exec_env))
11 # set the major version, which might be used by drivers and libraries
12 # depending on the configuration options
13 pver = meson.project_version().split('.')
14 major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
16 # extract all version information into the build configuration
17 dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
18 dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int())
19 if pver.get(2).contains('-rc')
20 rc_ver = pver.get(2).split('-rc')
21 dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int())
22 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
23 dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int())
25 dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int())
26 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
27 # for actual, non-rc releases, set the release value to 99 to ensure releases
28 # have higher version numbers than their respective release candidates
29 dpdk_conf.set('RTE_VER_RELEASE', 99)
32 pmd_subdir_opt = get_option('drivers_install_subdir')
33 if pmd_subdir_opt.contains('<VERSION>')
34 pmd_subdir_opt = major_version.join(pmd_subdir_opt.split('<VERSION>'))
36 driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
37 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
39 # set the machine type and cflags for it
40 if meson.is_cross_build()
41 machine = host_machine.cpu()
43 machine = get_option('machine')
46 # machine type 'default' is special, it defaults to the per arch agreed common
47 # minimal baseline needed for DPDK.
48 # That might not be the most optimized, but the most portable version while
49 # still being able to support the CPU features required for DPDK.
50 # This can be bumped up by the DPDK project, but it can never be an
51 # invariant like 'native'
52 if machine == 'default'
53 if host_machine.cpu_family().startswith('x86')
54 # matches the old pre-meson build systems default
56 elif host_machine.cpu_family().startswith('arm')
58 elif host_machine.cpu_family().startswith('aarch')
59 # arm64 manages defaults in config/arm/meson.build
61 elif host_machine.cpu_family().startswith('ppc')
66 dpdk_conf.set('RTE_MACHINE', machine)
69 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
70 if host_machine.cpu_family().startswith('ppc')
71 machine_args += '-mcpu=' + machine
72 machine_args += '-mtune=' + machine
74 machine_args += '-march=' + machine
77 toolchain = cc.get_id()
78 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
79 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
81 dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
83 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
84 dpdk_extra_ldflags += '-Wl,--no-as-needed'
87 add_project_link_arguments('-pthread', language: 'c')
88 dpdk_extra_ldflags += '-pthread'
90 # on some OS, maths functions are in a separate library
91 if cc.find_library('libm', required : false).found()
92 # some libs depend on maths lib
93 add_project_link_arguments('-lm', language: 'c')
94 dpdk_extra_ldflags += '-lm'
97 # for linux link against dl, for bsd execinfo
98 if host_machine.system() == 'linux'
100 elif host_machine.system() == 'freebsd'
101 link_lib = 'execinfo'
106 # if link_lib is empty, do not add it to project properties
108 add_project_link_arguments('-l' + link_lib, language: 'c')
109 dpdk_extra_ldflags += '-l' + link_lib
112 # check for libraries used in multiple places in DPDK
114 numa_dep = cc.find_library('numa', required: false)
115 if numa_dep.found() and cc.has_header('numaif.h')
116 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
118 add_project_link_arguments('-lnuma', language: 'c')
119 dpdk_extra_ldflags += '-lnuma'
123 if host_machine.system() == 'linux'
124 libbsd = dependency('libbsd', required: false)
126 dpdk_conf.set('RTE_USE_LIBBSD', 1)
130 # add -include rte_config to cflags
131 add_project_arguments('-include', 'rte_config.h', language: 'c')
133 # enable extra warnings and disable any unwanted warnings
137 '-Wno-address-of-packed-member'
139 if not dpdk_conf.get('RTE_ARCH_64')
140 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
141 warning_flags += '-Wno-pointer-to-int-cast'
143 foreach arg: warning_flags
144 if cc.has_argument(arg)
145 add_project_arguments(arg, language: 'c')
149 # set other values pulled from the build options
150 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
151 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
152 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
153 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
154 dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
155 # values which have defaults which may be overridden
156 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
157 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
158 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
161 compile_time_cpuflags = []
162 if host_machine.cpu_family().startswith('x86')
164 elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
166 elif host_machine.cpu_family().startswith('ppc')
167 arch_subdir = 'ppc_64'
170 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
172 # set the install path for the drivers
173 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
175 install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
177 # enable VFIO only if it is linux OS
178 dpdk_conf.set('RTE_EAL_VFIO', host_machine.system() == 'linux')