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,
26 check: true).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 so_version = abi_version.split('.')[0]
34 # extract all version information into the build configuration
35 dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
36 dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int())
37 if pver.get(2).contains('-rc')
38 rc_ver = pver.get(2).split('-rc')
39 dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int())
40 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
41 dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int())
43 dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int())
44 dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
45 # for actual, non-rc releases, set the release value to 99 to ensure releases
46 # have higher version numbers than their respective release candidates
47 dpdk_conf.set('RTE_VER_RELEASE', 99)
50 pmd_subdir_opt = get_option('drivers_install_subdir')
51 if pmd_subdir_opt.contains('<VERSION>')
52 pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>'))
54 driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
55 eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
57 # driver .so files often depend upon the bus drivers for their connect bus,
58 # e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need
59 # to be in the library path, so symlink the drivers from the main lib directory.
61 meson.add_install_script('../buildtools/symlink-drivers-solibs.sh',
62 get_option('libdir'), pmd_subdir_opt)
63 elif meson.version().version_compare('>=0.55.0')
64 # 0.55.0 is required to use external program with add_install_script
65 meson.add_install_script(py3,
66 files('../buildtools/symlink-drivers-solibs.py'),
67 get_option('libdir'), pmd_subdir_opt, get_option('bindir'))
70 # init disable/enable driver lists that will be populated in different places
74 platform = get_option('platform')
76 # set the cpu_instruction_set and cflags for it
77 if meson.is_cross_build()
78 cpu_instruction_set = host_machine.cpu()
80 cpu_instruction_set = get_option('cpu_instruction_set')
81 machine = get_option('machine')
83 warning('The "machine" option is deprecated. ' +
84 'Please use "cpu_instruction_set" instead.')
85 if cpu_instruction_set != 'auto'
86 error('Setting both "machine" and ' +
87 '"cpu_instruction_set" is unsupported.')
89 cpu_instruction_set = machine
90 if cpu_instruction_set == 'default'
91 cpu_instruction_set = 'generic'
96 if platform == 'native'
97 if cpu_instruction_set == 'auto'
98 cpu_instruction_set = 'native'
100 elif platform == 'generic'
101 if cpu_instruction_set == 'auto'
102 cpu_instruction_set = 'generic'
106 # cpu_instruction_set 'generic' is special, it selects the per arch agreed
107 # common minimal baseline needed for DPDK. cpu_instruction_set 'default' is
108 # also supported with the same meaning for backwards compatibility.
109 # That might not be the most optimized, but the most portable version while
110 # still being able to support the CPU features required for DPDK.
111 # This can be bumped up by the DPDK project, but it can never be an
112 # invariant like 'native'
113 if cpu_instruction_set == 'generic'
114 if host_machine.cpu_family().startswith('x86')
115 # matches the old pre-meson build systems generic cpu_instruction_set
116 cpu_instruction_set = 'corei7'
117 elif host_machine.cpu_family().startswith('arm')
118 cpu_instruction_set = 'armv7-a'
119 elif host_machine.cpu_family().startswith('aarch')
120 # arm64 manages generic config in config/arm/meson.build
121 cpu_instruction_set = 'generic'
122 elif host_machine.cpu_family().startswith('ppc')
123 cpu_instruction_set = 'power8'
124 elif host_machine.cpu_family().startswith('riscv')
125 cpu_instruction_set = 'riscv'
129 dpdk_conf.set('RTE_MACHINE', cpu_instruction_set)
132 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
133 if host_machine.cpu_family().startswith('ppc')
134 machine_args += '-mcpu=' + cpu_instruction_set
135 machine_args += '-mtune=' + cpu_instruction_set
137 machine_args += '-march=' + cpu_instruction_set
140 toolchain = cc.get_id()
141 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
142 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
144 dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
145 dpdk_conf.set('RTE_ARCH_32', cc.sizeof('void *') == 4)
148 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
151 # use pthreads if available for the platform
153 add_project_link_arguments('-pthread', language: 'c')
154 dpdk_extra_ldflags += '-pthread'
157 # on some OS, maths functions are in a separate library
158 if cc.find_library('m', required : false).found()
159 # some libs depend on maths lib
160 add_project_link_arguments('-lm', language: 'c')
161 dpdk_extra_ldflags += '-lm'
170 # if link_lib is empty, do not add it to project properties
172 add_project_link_arguments('-l' + link_lib, language: 'c')
173 dpdk_extra_ldflags += '-l' + link_lib
176 # check for libraries used in multiple places in DPDK
179 if meson.is_cross_build() and not meson.get_cross_property('numa', true)
180 # don't look for libnuma if explicitly disabled in cross build
184 numa_dep = cc.find_library('numa', required: false)
185 if numa_dep.found() and cc.has_header('numaif.h')
186 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
188 add_project_link_arguments('-lnuma', language: 'c')
189 dpdk_extra_ldflags += '-lnuma'
194 fdt_dep = cc.find_library('libfdt', required: false)
195 if fdt_dep.found() and cc.has_header('fdt.h')
196 dpdk_conf.set10('RTE_HAS_LIBFDT', true)
198 add_project_link_arguments('-lfdt', language: 'c')
199 dpdk_extra_ldflags += '-lfdt'
202 libexecinfo = cc.find_library('libexecinfo', required: false)
203 if libexecinfo.found() and cc.has_header('execinfo.h')
204 add_project_link_arguments('-lexecinfo', language: 'c')
205 dpdk_extra_ldflags += '-lexecinfo'
208 libarchive = dependency('libarchive', required: false, method: 'pkg-config')
209 if libarchive.found()
210 dpdk_conf.set('RTE_HAS_LIBARCHIVE', 1)
211 # Push libarchive link dependency at the project level to support
212 # statically linking dpdk apps. Details at:
213 # https://inbox.dpdk.org/dev/20210605004024.660267a1@sovereign/
214 add_project_link_arguments('-larchive', language: 'c')
215 dpdk_extra_ldflags += '-larchive'
219 libbsd = dependency('libbsd', required: false, method: 'pkg-config')
221 dpdk_conf.set('RTE_USE_LIBBSD', 1)
224 jansson_dep = dependency('jansson', required: false, method: 'pkg-config')
225 if jansson_dep.found()
226 dpdk_conf.set('RTE_HAS_JANSSON', 1)
230 pcap_dep = dependency('libpcap', required: false, method: 'pkg-config')
231 pcap_lib = is_windows ? 'wpcap' : 'pcap'
232 if not pcap_dep.found()
233 # pcap got a pkg-config file only in 1.9.0
234 pcap_dep = cc.find_library(pcap_lib, required: false)
236 if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
237 dpdk_conf.set('RTE_HAS_LIBPCAP', 1)
238 dpdk_extra_ldflags += '-l@0@'.format(pcap_lib)
241 # for clang 32-bit compiles we need libatomic for 64-bit atomic ops
242 if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false
243 atomic_dep = cc.find_library('atomic', required: true)
244 add_project_link_arguments('-latomic', language: 'c')
245 dpdk_extra_ldflags += '-latomic'
248 # add -include rte_config to cflags
249 add_project_arguments('-include', 'rte_config.h', language: 'c')
251 # enable extra warnings and disable any unwanted warnings
252 # -Wall is added by default at warning level 1, and -Wextra
253 # at warning level 2 (DPDK default)
255 # additional warnings in alphabetical order
259 '-Wformat-nonliteral',
261 '-Wmissing-declarations',
262 '-Wmissing-prototypes',
264 '-Wold-style-definition',
267 '-Wstrict-prototypes',
271 # globally disabled warnings
272 '-Wno-address-of-packed-member',
273 '-Wno-packed-not-aligned',
274 '-Wno-missing-field-initializers',
276 if cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0')
277 # FIXME: Bugzilla 396
278 warning_flags += '-Wno-zero-length-bounds'
280 if not dpdk_conf.get('RTE_ARCH_64')
281 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
282 warning_flags += '-Wno-pointer-to-int-cast'
284 if cc.get_id() == 'intel'
285 warning_ids = [181, 188, 2203, 2279, 2557, 3179, 3656]
286 foreach i:warning_ids
287 warning_flags += '-diag-disable=@0@'.format(i)
290 foreach arg: warning_flags
291 if cc.has_argument(arg)
292 add_project_arguments(arg, language: 'c')
296 # set other values pulled from the build options
297 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
298 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
299 dpdk_conf.set('RTE_ENABLE_TRACE_FP', get_option('enable_trace_fp'))
300 # values which have defaults which may be overridden
301 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
302 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
303 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
304 if dpdk_conf.get('RTE_ARCH_64')
305 dpdk_conf.set('RTE_MAX_MEM_MB', 524288)
306 else # for 32-bit we need smaller reserved memory areas
307 dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
309 if get_option('mbuf_refcnt_atomic')
310 dpdk_conf.set('RTE_MBUF_REFCNT_ATOMIC', true)
313 compile_time_cpuflags = []
315 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
317 # apply cross-specific options
318 if meson.is_cross_build()
319 # configure RTE_MAX_LCORE and RTE_MAX_NUMA_NODES from cross file
320 cross_max_lcores = meson.get_cross_property('max_lcores', 0)
321 if cross_max_lcores != 0
322 message('Setting RTE_MAX_LCORE from cross file')
323 dpdk_conf.set('RTE_MAX_LCORE', cross_max_lcores)
325 cross_max_numa_nodes = meson.get_cross_property('max_numa_nodes', 0)
326 if cross_max_numa_nodes != 0
327 message('Setting RTE_MAX_NUMA_NODES from cross file')
328 dpdk_conf.set('RTE_MAX_NUMA_NODES', cross_max_numa_nodes)
332 max_lcores = get_option('max_lcores')
333 if max_lcores == 'detect'
334 # discovery makes sense only for non-cross builds
335 if meson.is_cross_build()
336 error('Discovery of max_lcores is not supported for cross-compilation.')
338 # overwrite the default value with discovered values
339 max_lcores = run_command(get_cpu_count_cmd, check: true).stdout().to_int()
341 # DPDK must be built for at least 2 cores
342 if max_lcores < min_lcores
343 message('Found less than @0@ cores, building for @0@ cores'.format(min_lcores))
344 max_lcores = min_lcores
346 message('Found @0@ cores'.format(max_lcores))
348 dpdk_conf.set('RTE_MAX_LCORE', max_lcores)
349 elif max_lcores != 'default'
350 # overwrite the default value from arch_subdir with user input
351 dpdk_conf.set('RTE_MAX_LCORE', max_lcores.to_int())
354 max_numa_nodes = get_option('max_numa_nodes')
355 if max_numa_nodes == 'detect'
356 # discovery makes sense only for non-cross builds
357 if meson.is_cross_build()
358 error('Discovery of max_numa_nodes not supported for cross-compilation.')
360 # overwrite the default value with discovered values
361 max_numa_nodes = run_command(get_numa_count_cmd).stdout().to_int()
362 message('Found @0@ numa nodes'.format(max_numa_nodes))
363 dpdk_conf.set('RTE_MAX_NUMA_NODES', max_numa_nodes)
364 elif max_numa_nodes != 'default'
365 # overwrite the default value from arch_subdir with user input
366 dpdk_conf.set('RTE_MAX_NUMA_NODES', max_numa_nodes.to_int())
369 # check that CPU and NUMA counts are set
370 if not dpdk_conf.has('RTE_MAX_LCORE')
371 error('Number of CPU cores not specified.')
373 if not dpdk_conf.has('RTE_MAX_NUMA_NODES')
374 error('Number of NUMA nodes not specified.')
377 # set the install path for the drivers
378 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
380 install_headers(['rte_config.h'],
381 subdir: get_option('include_subdir_arch'))
383 # enable VFIO only if it is linux OS
384 dpdk_conf.set('RTE_EAL_VFIO', is_linux)
386 # specify -D_GNU_SOURCE unconditionally
387 add_project_arguments('-D_GNU_SOURCE', language: 'c')
389 # specify -D__BSD_VISIBLE for FreeBSD
391 add_project_arguments('-D__BSD_VISIBLE', language: 'c')
395 # VirtualAlloc2() is available since Windows 10 / Server 2019.
396 # It's essential for EAL, so we don't support older versions.
397 add_project_arguments('-D_WIN32_WINNT=0x0A00', language: 'c')
399 # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting.
400 if cc.get_id() == 'gcc'
401 add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
404 # Disable secure CRT deprecated warnings for clang
405 if cc.get_id() == 'clang'
406 add_project_arguments('-D_CRT_SECURE_NO_WARNINGS', language: 'c')
410 if get_option('b_lto')
411 if cc.has_argument('-ffat-lto-objects')
412 add_project_arguments('-ffat-lto-objects', language: 'c')
414 error('compiler does not support fat LTO objects - please turn LTO off')
416 # workaround for gcc bug 81440
417 if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0')
418 add_project_arguments('-Wno-lto-type-mismatch', language: 'c')
419 add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c')
423 if get_option('b_sanitize') == 'address' or get_option('b_sanitize') == 'address,undefined'
425 error('ASan is not supported on windows')
428 if cc.get_id() == 'gcc'
429 asan_dep = cc.find_library('asan', required: true)
430 if (not cc.links('int main(int argc, char *argv[]) { return 0; }',
431 dependencies: asan_dep))
432 error('broken dependency, "libasan"')
434 add_project_link_arguments('-lasan', language: 'c')
435 dpdk_extra_ldflags += '-lasan'
438 if is_linux and dpdk_conf.get('RTE_ARCH_64')
439 dpdk_conf.set10('RTE_MALLOC_ASAN', true)
443 if get_option('default_library') == 'both'
445 Unsupported value "both" for "default_library" option.
447 NOTE: DPDK always builds both shared and static libraries. Please set
448 "default_library" to either "static" or "shared" to select default linkage
449 for apps and any examples.''')