1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017 Intel Corporation
4 # set the machine type and cflags for it
5 if meson.is_cross_build()
6 machine = host_machine.cpu()
8 machine = get_option('machine')
10 dpdk_conf.set('RTE_MACHINE', machine)
13 # ppc64 does not support -march= at all, use -mcpu and -mtune for that
14 if host_machine.cpu_family().startswith('ppc')
15 machine_args += '-mcpu=' + machine
16 machine_args += '-mtune=' + machine
18 machine_args += '-march=' + machine
21 toolchain = cc.get_id()
22 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
23 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
25 add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
26 dpdk_extra_ldflags += '-Wl,--no-as-needed'
29 add_project_link_arguments('-pthread', language: 'c')
30 dpdk_extra_ldflags += '-pthread'
32 # some libs depend on maths lib
33 add_project_link_arguments('-lm', language: 'c')
34 dpdk_extra_ldflags += '-lm'
36 # for linux link against dl, for bsd execinfo
37 if host_machine.system() == 'linux'
42 add_project_link_arguments('-l' + link_lib, language: 'c')
43 dpdk_extra_ldflags += '-l' + link_lib
45 # check for libraries used in multiple places in DPDK
47 numa_dep = cc.find_library('numa', required: false)
48 if numa_dep.found() and cc.has_header('numaif.h')
49 dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
51 add_project_link_arguments('-lnuma', language: 'c')
52 dpdk_extra_ldflags += '-lnuma'
56 if host_machine.system() == 'linux' and cc.find_library('bsd',
57 required: false).found() and cc.has_header('bsd/string.h')
58 dpdk_conf.set('RTE_USE_LIBBSD', 1)
59 add_project_link_arguments('-lbsd', language: 'c')
60 dpdk_extra_ldflags += '-lbsd'
63 # add -include rte_config to cflags
64 add_project_arguments('-include', 'rte_config.h', language: 'c')
66 # enable extra warnings and disable any unwanted warnings
70 '-Wno-address-of-packed-member'
72 if cc.sizeof('void *') == 4
73 # for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
74 warning_flags += '-Wno-pointer-to-int-cast'
76 foreach arg: warning_flags
77 if cc.has_argument(arg)
78 add_project_arguments(arg, language: 'c')
82 # set other values pulled from the build options
83 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
84 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
85 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
86 dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
87 # values which have defaults which may be overridden
88 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
89 dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
90 dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
92 compile_time_cpuflags = []
93 if host_machine.cpu_family().startswith('x86')
95 elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
97 elif host_machine.cpu_family().startswith('ppc')
98 arch_subdir = 'ppc_64'
101 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
103 # set the install path for the drivers
104 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
106 install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
108 # enable VFIO only if it is linux OS
109 dpdk_conf.set('RTE_EAL_VFIO', host_machine.system() == 'linux')