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 # define a handy variable for checking which OS we have.
12 # gives us "is_windows", "is_freebsd" and "is_linux"
13 foreach env:supported_exec_envs
14 set_variable('is_' + env, exec_env == env)
17 # MS linker requires special treatment.
18 # TODO: use cc.get_linker_id() with Meson >= 0.54
19 is_ms_linker = is_windows and (cc.get_id() == 'clang')
21 # set the major version, which might be used by drivers and libraries
22 # depending on the configuration options
23 pver = meson.project_version().split('.')
24 major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
25 abi_version = run_command(find_program('cat', 'more'),
26 abi_version_file).stdout().strip()
28 # Libraries have the abi_version as the filename extension
29 # and have the soname be all but the final part of the abi_version.
30 # e.g. v20.1 => librte_foo.so.20.1
31 # sonames => librte_foo.so.20
32 # e.g. v20.0.1 => librte_foo.so.20.0.1
33 # sonames => librte_foo.so.20.0
34 abi_va = abi_version.split('.')
35 so_version = abi_va.length() == 2 ? abi_va[0] : abi_va[0] + '.' + abi_va[1]
37 # extract all version information into the build configuration
38 dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
39 dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int())
40 if pver.get(2).contains('-rc')
41 rc_ver = pver.get(2).split('-rc')
42 dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int())
43 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
44 dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int())
46 dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int())
47 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
48 # for actual, non-rc releases, set the release value to 99 to ensure releases
49 # have higher version numbers than their respective release candidates
50 dpdk_conf.set('RTE_VER_RELEASE', 99)
53 pmd_subdir_opt = get_option('drivers_install_subdir')
54 if pmd_subdir_opt.contains('<VERSION>')
55 pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>'))
57 driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
58 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
60 # driver .so files often depend upon the bus drivers for their connect bus,
61 # e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need
62 # to be in the library path, so symlink the drivers from the main lib directory.
63 meson.add_install_script('../buildtools/symlink-drivers-solibs.sh',
67 # set the machine type and cflags for it
68 if meson.is_cross_build()
69 machine = host_machine.cpu()
71 machine = get_option('machine')
74 # machine type 'default' is special, it defaults to the per arch agreed common
75 # minimal baseline needed for DPDK.
76 # That might not be the most optimized, but the most portable version while
77 # still being able to support the CPU features required for DPDK.
78 # This can be bumped up by the DPDK project, but it can never be an
79 # invariant like 'native'
80 if machine == 'default'
81 if host_machine.cpu_family().startswith('x86')
82 # matches the old pre-meson build systems default
84 elif host_machine.cpu_family().startswith('arm')
86 elif host_machine.cpu_family().startswith('aarch')
87 # arm64 manages defaults in config/arm/meson.build
89 elif host_machine.cpu_family().startswith('ppc')
94 dpdk_conf.set('RTE_MACHINE', machine)
97 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
98 if host_machine.cpu_family().startswith('ppc')
99 machine_args += '-mcpu=' + machine
100 machine_args += '-mtune=' + machine
102 machine_args += '-march=' + machine
105 toolchain = cc.get_id()
106 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
107 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
109 dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
112 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
115 # use pthreads if available for the platform
117 add_project_link_arguments('-pthread', language: 'c')
118 dpdk_extra_ldflags += '-pthread'
121 # on some OS, maths functions are in a separate library
122 if cc.find_library('m', required : false).found()
123 # some libs depend on maths lib
124 add_project_link_arguments('-lm', language: 'c')
125 dpdk_extra_ldflags += '-lm'
128 # for linux link against dl, for bsd execinfo
132 link_lib = 'execinfo'
137 # if link_lib is empty, do not add it to project properties
139 add_project_link_arguments('-l' + link_lib, language: 'c')
140 dpdk_extra_ldflags += '-l' + link_lib
143 # check for libraries used in multiple places in DPDK
145 numa_dep = cc.find_library('numa', required: false)
146 if numa_dep.found() and cc.has_header('numaif.h')
147 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
149 add_project_link_arguments('-lnuma', language: 'c')
150 dpdk_extra_ldflags += '-lnuma'
154 libbsd = dependency('libbsd', required: false)
156 dpdk_conf.set('RTE_USE_LIBBSD', 1)
160 pcap_dep = dependency('pcap', required: false)
162 # pcap got a pkg-config file only in 1.9.0 and before that meson uses
163 # an internal pcap-config finder, which is not compatible with
164 # cross-compilation, so try to fallback to find_library
165 pcap_dep = cc.find_library('pcap', required: false)
167 if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
168 dpdk_conf.set('RTE_PORT_PCAP', 1)
169 dpdk_extra_ldflags += '-lpcap'
172 # for clang 32-bit compiles we need libatomic for 64-bit atomic ops
173 if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false
174 atomic_dep = cc.find_library('atomic', required: true)
175 add_project_link_arguments('-latomic', language: 'c')
176 dpdk_extra_ldflags += '-latomic'
179 # add -include rte_config to cflags
180 add_project_arguments('-include', 'rte_config.h', language: 'c')
182 # enable extra warnings and disable any unwanted warnings
184 # -Wall is added by meson by default, so add -Wextra only
187 # additional warnings in alphabetical order
190 '-Wformat-nonliteral',
192 '-Wmissing-declarations',
193 '-Wmissing-prototypes',
195 '-Wold-style-definition',
198 '-Wstrict-prototypes',
202 # globally disabled warnings
203 '-Wno-address-of-packed-member',
204 '-Wno-packed-not-aligned',
205 '-Wno-missing-field-initializers'
207 if cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0')
208 # FIXME: Bugzilla 396
209 warning_flags += '-Wno-zero-length-bounds'
211 if not dpdk_conf.get('RTE_ARCH_64')
212 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
213 warning_flags += '-Wno-pointer-to-int-cast'
215 if cc.get_id() == 'intel'
216 warning_ids = [188, 2203, 2279, 2557, 3179, 3656]
217 foreach i:warning_ids
218 warning_flags += '-diag-disable=@0@'.format(i)
221 foreach arg: warning_flags
222 if cc.has_argument(arg)
223 add_project_arguments(arg, language: 'c')
227 # set other values pulled from the build options
228 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
229 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
230 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
231 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
232 dpdk_conf.set('RTE_ENABLE_TRACE_FP', get_option('enable_trace_fp'))
233 # values which have defaults which may be overridden
234 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
235 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
236 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
237 if dpdk_conf.get('RTE_ARCH_64')
238 dpdk_conf.set('RTE_MAX_MEM_MB', 524288)
239 else # for 32-bit we need smaller reserved memory areas
240 dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
244 compile_time_cpuflags = []
246 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
248 # set the install path for the drivers
249 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
251 install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
253 # enable VFIO only if it is linux OS
254 dpdk_conf.set('RTE_EAL_VFIO', is_linux)
256 # specify -D_GNU_SOURCE unconditionally
257 add_project_arguments('-D_GNU_SOURCE', language: 'c')
259 # specify -D__BSD_VISIBLE for FreeBSD
261 add_project_arguments('-D__BSD_VISIBLE', language: 'c')
265 # VirtualAlloc2() is available since Windows 10 / Server 2016.
266 add_project_arguments('-D_WIN32_WINNT=0x0A00', language: 'c')
268 # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting.
269 if cc.get_id() == 'gcc'
270 add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
273 # Contrary to docs, VirtualAlloc2() is exported by mincore.lib
274 # in Windows SDK, while MinGW exports it by advapi32.a.
276 add_project_link_arguments('-lmincore', language: 'c')
279 add_project_link_arguments('-ladvapi32', '-lsetupapi', language: 'c')
280 add_project_link_arguments('-ldbghelp', language: 'c')
283 if get_option('b_lto')
284 if cc.has_argument('-ffat-lto-objects')
285 add_project_arguments('-ffat-lto-objects', language: 'c')
287 error('compiler does not support fat LTO objects - please turn LTO off')
289 # workaround for gcc bug 81440
290 if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0')
291 add_project_arguments('-Wno-lto-type-mismatch', language: 'c')
292 add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c')