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'), abi_version_file).stdout().strip()
27 # Libraries have the abi_version as the filename extension
28 # and have the soname be all but the final part of the abi_version.
29 # e.g. v20.1 => librte_foo.so.20.1
30 # sonames => librte_foo.so.20
31 so_version = abi_version.split('.')[0]
33 # extract all version information into the build configuration
34 dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
35 dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int())
36 if pver.get(2).contains('-rc')
37 rc_ver = pver.get(2).split('-rc')
38 dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int())
39 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
40 dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int())
42 dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int())
43 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
44 # for actual, non-rc releases, set the release value to 99 to ensure releases
45 # have higher version numbers than their respective release candidates
46 dpdk_conf.set('RTE_VER_RELEASE', 99)
49 pmd_subdir_opt = get_option('drivers_install_subdir')
50 if pmd_subdir_opt.contains('<VERSION>')
51 pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>'))
53 driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
54 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
56 # driver .so files often depend upon the bus drivers for their connect bus,
57 # e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need
58 # to be in the library path, so symlink the drivers from the main lib directory.
60 meson.add_install_script('../buildtools/symlink-drivers-solibs.sh',
61 get_option('libdir'), pmd_subdir_opt)
64 # init disable/enable driver lists that will be populated in different places
68 platform = get_option('platform')
70 # set the cpu_instruction_set and cflags for it
71 if meson.is_cross_build()
72 cpu_instruction_set = host_machine.cpu()
74 cpu_instruction_set = get_option('cpu_instruction_set')
75 machine = get_option('machine')
77 warning('The "machine" option is deprecated. ' +
78 'Please use "cpu_instruction_set" instead.')
79 if cpu_instruction_set != 'auto'
80 error('Setting both "machine" and ' +
81 '"cpu_instruction_set" is unsupported.')
83 cpu_instruction_set = machine
84 if cpu_instruction_set == 'default'
85 cpu_instruction_set = 'generic'
90 if platform == 'native'
91 if cpu_instruction_set == 'auto'
92 cpu_instruction_set = 'native'
94 elif platform == 'generic'
95 if cpu_instruction_set == 'auto'
96 cpu_instruction_set = 'generic'
100 # cpu_instruction_set 'generic' is special, it selects the per arch agreed
101 # common minimal baseline needed for DPDK. cpu_instruction_set 'default' is
102 # also supported with the same meaning for backwards compatibility.
103 # That might not be the most optimized, but the most portable version while
104 # still being able to support the CPU features required for DPDK.
105 # This can be bumped up by the DPDK project, but it can never be an
106 # invariant like 'native'
107 if cpu_instruction_set == 'generic'
108 if host_machine.cpu_family().startswith('x86')
109 # matches the old pre-meson build systems generic cpu_instruction_set
110 cpu_instruction_set = 'corei7'
111 elif host_machine.cpu_family().startswith('arm')
112 cpu_instruction_set = 'armv7-a'
113 elif host_machine.cpu_family().startswith('aarch')
114 # arm64 manages generic config in config/arm/meson.build
115 cpu_instruction_set = 'generic'
116 elif host_machine.cpu_family().startswith('ppc')
117 cpu_instruction_set = 'power8'
121 dpdk_conf.set('RTE_MACHINE', cpu_instruction_set)
124 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
125 if host_machine.cpu_family().startswith('ppc')
126 machine_args += '-mcpu=' + cpu_instruction_set
127 machine_args += '-mtune=' + cpu_instruction_set
129 machine_args += '-march=' + cpu_instruction_set
132 toolchain = cc.get_id()
133 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
134 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
136 dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
137 dpdk_conf.set('RTE_ARCH_32', cc.sizeof('void *') == 4)
140 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
143 # use pthreads if available for the platform
145 add_project_link_arguments('-pthread', language: 'c')
146 dpdk_extra_ldflags += '-pthread'
149 # on some OS, maths functions are in a separate library
150 if cc.find_library('m', required : false).found()
151 # some libs depend on maths lib
152 add_project_link_arguments('-lm', language: 'c')
153 dpdk_extra_ldflags += '-lm'
162 # if link_lib is empty, do not add it to project properties
164 add_project_link_arguments('-l' + link_lib, language: 'c')
165 dpdk_extra_ldflags += '-l' + link_lib
168 # check for libraries used in multiple places in DPDK
171 if meson.is_cross_build() and not meson.get_cross_property('numa', true)
172 # don't look for libnuma if explicitly disabled in cross build
176 numa_dep = cc.find_library('numa', required: false)
177 if numa_dep.found() and cc.has_header('numaif.h')
178 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
180 add_project_link_arguments('-lnuma', language: 'c')
181 dpdk_extra_ldflags += '-lnuma'
186 fdt_dep = cc.find_library('libfdt', required: false)
187 if fdt_dep.found() and cc.has_header('fdt.h')
188 dpdk_conf.set10('RTE_HAS_LIBFDT', true)
190 add_project_link_arguments('-lfdt', language: 'c')
191 dpdk_extra_ldflags += '-lfdt'
194 libexecinfo = cc.find_library('libexecinfo', required: false)
195 if libexecinfo.found() and cc.has_header('execinfo.h')
196 add_project_link_arguments('-lexecinfo', language: 'c')
197 dpdk_extra_ldflags += '-lexecinfo'
200 libarchive = dependency('libarchive', required: false, method: 'pkg-config')
201 if libarchive.found()
202 dpdk_conf.set('RTE_HAS_LIBARCHIVE', 1)
203 # Push libarchive link dependency at the project level to support
204 # statically linking dpdk apps. Details at:
205 # https://inbox.dpdk.org/dev/20210605004024.660267a1@sovereign/
206 add_project_link_arguments('-larchive', language: 'c')
207 dpdk_extra_ldflags += '-larchive'
211 libbsd = dependency('libbsd', required: false, method: 'pkg-config')
213 dpdk_conf.set('RTE_USE_LIBBSD', 1)
217 pcap_dep = dependency('libpcap', required: false, method: 'pkg-config')
218 pcap_lib = is_windows ? 'wpcap' : 'pcap'
219 if not pcap_dep.found()
220 # pcap got a pkg-config file only in 1.9.0
221 pcap_dep = cc.find_library(pcap_lib, required: false)
223 if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
224 dpdk_conf.set('RTE_PORT_PCAP', 1)
225 dpdk_extra_ldflags += '-l@0@'.format(pcap_lib)
228 # for clang 32-bit compiles we need libatomic for 64-bit atomic ops
229 if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false
230 atomic_dep = cc.find_library('atomic', required: true)
231 add_project_link_arguments('-latomic', language: 'c')
232 dpdk_extra_ldflags += '-latomic'
235 # add -include rte_config to cflags
236 add_project_arguments('-include', 'rte_config.h', language: 'c')
238 # enable extra warnings and disable any unwanted warnings
240 # -Wall is added by meson by default, so add -Wextra only
243 # additional warnings in alphabetical order
247 '-Wformat-nonliteral',
249 '-Wmissing-declarations',
250 '-Wmissing-prototypes',
252 '-Wold-style-definition',
255 '-Wstrict-prototypes',
259 # globally disabled warnings
260 '-Wno-address-of-packed-member',
261 '-Wno-packed-not-aligned',
262 '-Wno-missing-field-initializers',
264 if cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0')
265 # FIXME: Bugzilla 396
266 warning_flags += '-Wno-zero-length-bounds'
268 if not dpdk_conf.get('RTE_ARCH_64')
269 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
270 warning_flags += '-Wno-pointer-to-int-cast'
272 if cc.get_id() == 'intel'
273 warning_ids = [181, 188, 2203, 2279, 2557, 3179, 3656]
274 foreach i:warning_ids
275 warning_flags += '-diag-disable=@0@'.format(i)
278 foreach arg: warning_flags
279 if cc.has_argument(arg)
280 add_project_arguments(arg, language: 'c')
284 # set other values pulled from the build options
285 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
286 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
287 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
288 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
289 dpdk_conf.set('RTE_ENABLE_TRACE_FP', get_option('enable_trace_fp'))
290 # values which have defaults which may be overridden
291 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
292 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
293 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
294 if dpdk_conf.get('RTE_ARCH_64')
295 dpdk_conf.set('RTE_MAX_MEM_MB', 524288)
296 else # for 32-bit we need smaller reserved memory areas
297 dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
301 compile_time_cpuflags = []
303 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
305 # apply cross-specific options
306 if meson.is_cross_build()
307 # configure RTE_MAX_LCORE and RTE_MAX_NUMA_NODES from cross file
308 cross_max_lcores = meson.get_cross_property('max_lcores', 0)
309 if cross_max_lcores != 0
310 message('Setting RTE_MAX_LCORE from cross file')
311 dpdk_conf.set('RTE_MAX_LCORE', cross_max_lcores)
313 cross_max_numa_nodes = meson.get_cross_property('max_numa_nodes', 0)
314 if cross_max_numa_nodes != 0
315 message('Setting RTE_MAX_NUMA_NODES from cross file')
316 dpdk_conf.set('RTE_MAX_NUMA_NODES', cross_max_numa_nodes)
320 # set the install path for the drivers
321 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
323 install_headers(['rte_config.h'],
324 subdir: get_option('include_subdir_arch'))
326 # enable VFIO only if it is linux OS
327 dpdk_conf.set('RTE_EAL_VFIO', is_linux)
329 # specify -D_GNU_SOURCE unconditionally
330 add_project_arguments('-D_GNU_SOURCE', language: 'c')
332 # specify -D__BSD_VISIBLE for FreeBSD
334 add_project_arguments('-D__BSD_VISIBLE', language: 'c')
338 # VirtualAlloc2() is available since Windows 10 / Server 2016.
339 add_project_arguments('-D_WIN32_WINNT=0x0A00', language: 'c')
341 # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting.
342 if cc.get_id() == 'gcc'
343 add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
346 # Disable secure CRT deprecated warnings for clang
347 if cc.get_id() == 'clang'
348 add_project_arguments('-D_CRT_SECURE_NO_WARNINGS', language: 'c')
351 add_project_link_arguments('-lws2_32', language: 'c')
353 # Contrary to docs, VirtualAlloc2() is exported by mincore.lib
354 # in Windows SDK, while MinGW exports it by advapi32.a.
356 add_project_link_arguments('-lmincore', language: 'c')
359 add_project_link_arguments('-ladvapi32', '-lsetupapi', language: 'c')
360 add_project_link_arguments('-ldbghelp', language: 'c')
363 if get_option('b_lto')
364 if cc.has_argument('-ffat-lto-objects')
365 add_project_arguments('-ffat-lto-objects', language: 'c')
367 error('compiler does not support fat LTO objects - please turn LTO off')
369 # workaround for gcc bug 81440
370 if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0')
371 add_project_arguments('-Wno-lto-type-mismatch', language: 'c')
372 add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c')
376 if get_option('default_library') == 'both'
378 Unsupported value "both" for "default_library" option.
380 NOTE: DPDK always builds both shared and static libraries. Please set
381 "default_library" to either "static" or "shared" to select default linkage
382 for apps and any examples.''')