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 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',
66 # set the machine type and cflags for it
67 if meson.is_cross_build()
68 machine = host_machine.cpu()
70 machine = get_option('machine')
73 # machine type 'generic' is special, it selects the per arch agreed common
74 # minimal baseline needed for DPDK. Machine type 'default' is also supported
75 # with the same meaning for backwards compatibility.
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' or machine == 'generic'
81 if host_machine.cpu_family().startswith('x86')
82 # matches the old pre-meson build systems generic machine
84 elif host_machine.cpu_family().startswith('arm')
86 elif host_machine.cpu_family().startswith('aarch')
87 # arm64 manages generic config 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)
110 dpdk_conf.set('RTE_ARCH_32', cc.sizeof('void *') == 4)
113 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
116 # use pthreads if available for the platform
118 add_project_link_arguments('-pthread', language: 'c')
119 dpdk_extra_ldflags += '-pthread'
122 # on some OS, maths functions are in a separate library
123 if cc.find_library('m', required : false).found()
124 # some libs depend on maths lib
125 add_project_link_arguments('-lm', language: 'c')
126 dpdk_extra_ldflags += '-lm'
135 # if link_lib is empty, do not add it to project properties
137 add_project_link_arguments('-l' + link_lib, language: 'c')
138 dpdk_extra_ldflags += '-l' + link_lib
141 # check for libraries used in multiple places in DPDK
144 if meson.is_cross_build() and not meson.get_cross_property('numa', true)
145 # don't look for libnuma if explicitly disabled in cross build
149 numa_dep = cc.find_library('numa', required: false)
150 if numa_dep.found() and cc.has_header('numaif.h')
151 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
153 add_project_link_arguments('-lnuma', language: 'c')
154 dpdk_extra_ldflags += '-lnuma'
159 fdt_dep = cc.find_library('libfdt', required: false)
160 if fdt_dep.found() and cc.has_header('fdt.h')
161 dpdk_conf.set10('RTE_HAS_LIBFDT', true)
163 add_project_link_arguments('-lfdt', language: 'c')
164 dpdk_extra_ldflags += '-lfdt'
167 libexecinfo = cc.find_library('libexecinfo', required: false)
168 if libexecinfo.found() and cc.has_header('execinfo.h')
169 add_project_link_arguments('-lexecinfo', language: 'c')
170 dpdk_extra_ldflags += '-lexecinfo'
174 libbsd = dependency('libbsd', required: false, method: 'pkg-config')
176 dpdk_conf.set('RTE_USE_LIBBSD', 1)
180 pcap_dep = dependency('libpcap', required: false, method: 'pkg-config')
181 if not pcap_dep.found()
182 # pcap got a pkg-config file only in 1.9.0
183 pcap_dep = cc.find_library('pcap', required: false)
185 if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
186 dpdk_conf.set('RTE_PORT_PCAP', 1)
187 dpdk_extra_ldflags += '-lpcap'
190 # for clang 32-bit compiles we need libatomic for 64-bit atomic ops
191 if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false
192 atomic_dep = cc.find_library('atomic', required: true)
193 add_project_link_arguments('-latomic', language: 'c')
194 dpdk_extra_ldflags += '-latomic'
197 # add -include rte_config to cflags
198 add_project_arguments('-include', 'rte_config.h', language: 'c')
200 # enable extra warnings and disable any unwanted warnings
202 # -Wall is added by meson by default, so add -Wextra only
205 # additional warnings in alphabetical order
209 '-Wformat-nonliteral',
211 '-Wmissing-declarations',
212 '-Wmissing-prototypes',
214 '-Wold-style-definition',
217 '-Wstrict-prototypes',
221 # globally disabled warnings
222 '-Wno-address-of-packed-member',
223 '-Wno-packed-not-aligned',
224 '-Wno-missing-field-initializers'
226 if cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0')
227 # FIXME: Bugzilla 396
228 warning_flags += '-Wno-zero-length-bounds'
230 if not dpdk_conf.get('RTE_ARCH_64')
231 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
232 warning_flags += '-Wno-pointer-to-int-cast'
234 if cc.get_id() == 'intel'
235 warning_ids = [181, 188, 2203, 2279, 2557, 3179, 3656]
236 foreach i:warning_ids
237 warning_flags += '-diag-disable=@0@'.format(i)
240 foreach arg: warning_flags
241 if cc.has_argument(arg)
242 add_project_arguments(arg, language: 'c')
246 # set other values pulled from the build options
247 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
248 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
249 dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
250 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
251 dpdk_conf.set('RTE_ENABLE_TRACE_FP', get_option('enable_trace_fp'))
252 # values which have defaults which may be overridden
253 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
254 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
255 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
256 if dpdk_conf.get('RTE_ARCH_64')
257 dpdk_conf.set('RTE_MAX_MEM_MB', 524288)
258 else # for 32-bit we need smaller reserved memory areas
259 dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
263 compile_time_cpuflags = []
265 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
267 # apply cross-specific options
268 if meson.is_cross_build()
269 # configure RTE_MAX_LCORE and RTE_MAX_NUMA_NODES from cross file
270 cross_max_lcores = meson.get_cross_property('max_lcores', 0)
271 if cross_max_lcores != 0
272 message('Setting RTE_MAX_LCORE from cross file')
273 dpdk_conf.set('RTE_MAX_LCORE', cross_max_lcores)
275 cross_max_numa_nodes = meson.get_cross_property('max_numa_nodes', 0)
276 if cross_max_numa_nodes != 0
277 message('Setting RTE_MAX_NUMA_NODES from cross file')
278 dpdk_conf.set('RTE_MAX_NUMA_NODES', cross_max_numa_nodes)
282 # set the install path for the drivers
283 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
285 install_headers(['rte_config.h'],
286 subdir: get_option('include_subdir_arch'))
288 # enable VFIO only if it is linux OS
289 dpdk_conf.set('RTE_EAL_VFIO', is_linux)
291 # specify -D_GNU_SOURCE unconditionally
292 add_project_arguments('-D_GNU_SOURCE', language: 'c')
294 # specify -D__BSD_VISIBLE for FreeBSD
296 add_project_arguments('-D__BSD_VISIBLE', language: 'c')
300 # VirtualAlloc2() is available since Windows 10 / Server 2016.
301 add_project_arguments('-D_WIN32_WINNT=0x0A00', language: 'c')
303 # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting.
304 if cc.get_id() == 'gcc'
305 add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
308 # Disable secure CRT deprecated warnings for clang
309 if cc.get_id() == 'clang'
310 add_project_arguments('-D_CRT_SECURE_NO_WARNINGS', language: 'c')
313 add_project_link_arguments('-lws2_32', language: 'c')
315 # Contrary to docs, VirtualAlloc2() is exported by mincore.lib
316 # in Windows SDK, while MinGW exports it by advapi32.a.
318 add_project_link_arguments('-lmincore', language: 'c')
321 add_project_link_arguments('-ladvapi32', '-lsetupapi', language: 'c')
322 add_project_link_arguments('-ldbghelp', language: 'c')
325 if get_option('b_lto')
326 if cc.has_argument('-ffat-lto-objects')
327 add_project_arguments('-ffat-lto-objects', language: 'c')
329 error('compiler does not support fat LTO objects - please turn LTO off')
331 # workaround for gcc bug 81440
332 if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0')
333 add_project_arguments('-Wno-lto-type-mismatch', language: 'c')
334 add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c')
338 if get_option('default_library') == 'both'
340 Unsupported value "both" for "default_library" option.
342 NOTE: DPDK always builds both shared and static libraries. Please set
343 "default_library" to either "static" or "shared" to select default linkage
344 for apps and any examples.''')