build: set toolchain info during meson configure
[dpdk.git] / config / meson.build
1 # SPDX-License-Identifier: BSD-3-Clause
2 # Copyright(c) 2017 Intel Corporation
3
4 # set the machine type and cflags for it
5 if meson.is_cross_build()
6         machine = host_machine.cpu()
7 else
8         machine = get_option('machine')
9 endif
10 dpdk_conf.set('RTE_MACHINE', machine)
11 machine_args = []
12 machine_args += '-march=' + machine
13
14 toolchain = cc.get_id()
15 dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
16 dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
17
18 # use pthreads
19 add_project_link_arguments('-pthread', language: 'c')
20 dpdk_extra_ldflags += '-pthread'
21
22 # some libs depend on maths lib
23 add_project_link_arguments('-lm', language: 'c')
24 dpdk_extra_ldflags += '-lm'
25
26 # for linux link against dl, for bsd execinfo
27 if host_machine.system() == 'linux'
28         link_lib = 'dl'
29 else
30         link_lib = 'execinfo'
31 endif
32 add_project_link_arguments('-l' + link_lib, language: 'c')
33 dpdk_extra_ldflags += '-l' + link_lib
34
35 # check for libraries used in multiple places in DPDK
36 has_libnuma = 0
37 numa_dep = cc.find_library('numa', required: false)
38 if numa_dep.found() and cc.has_header('numaif.h')
39         dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
40         has_libnuma = 1
41         add_project_link_arguments('-lnuma', language: 'c')
42         dpdk_extra_ldflags += '-lnuma'
43 endif
44
45 # check for strlcpy
46 if host_machine.system() == 'linux' and cc.find_library('bsd', required: false).found()
47         dpdk_conf.set('RTE_USE_LIBBSD', 1)
48         add_project_link_arguments('-lbsd', language: 'c')
49         dpdk_extra_ldflags += '-lbsd'
50 endif
51
52 # add -include rte_config to cflags
53 add_project_arguments('-include', 'rte_config.h', language: 'c')
54
55 # enable extra warnings and disable any unwanted warnings
56 warning_flags = [
57         '-Wsign-compare',
58         '-Wcast-qual',
59         '-Wno-address-of-packed-member',
60         '-Wno-format-truncation'
61 ]
62 foreach arg: warning_flags
63         if cc.has_argument(arg)
64                 add_project_arguments(arg, language: 'c')
65         endif
66 endforeach
67
68 # set other values pulled from the build options
69 dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
70 dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
71 dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
72 dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
73 # values which have defaults which may be overridden
74 dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
75
76 compile_time_cpuflags = []
77 if host_machine.cpu_family().startswith('x86')
78         arch_subdir = 'x86'
79 elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
80         arch_subdir = 'arm'
81 endif
82 subdir(arch_subdir)
83 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
84
85 # set the install path for the drivers
86 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
87
88 install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))