X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=config%2Fmeson.build;h=4cdf589e2086fd8f3b504cf8df8c9661a17309d9;hb=0972b7baae4eafabefd6c21cb69324baa41665e5;hp=f0d74d4a3934c6dfec131d5415f267d25fe28cbb;hpb=f3eeed27ffe3b8521d45940df587385c50069056;p=dpdk.git

diff --git a/config/meson.build b/config/meson.build
index f0d74d4a39..4cdf589e20 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -1,50 +1,240 @@
-#   BSD LICENSE
-#
-#   Copyright(c) 2017 Intel Corporation.
-#   All rights reserved.
-#
-#   Redistribution and use in source and binary forms, with or without
-#   modification, are permitted provided that the following conditions
-#   are met:
-#
-#     * Redistributions of source code must retain the above copyright
-#       notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-#       notice, this list of conditions and the following disclaimer in
-#       the documentation and/or other materials provided with the
-#       distribution.
-#     * Neither the name of Intel Corporation nor the names of its
-#       contributors may be used to endorse or promote products derived
-#       from this software without specific prior written permission.
-#
-#   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-#   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-#   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-#   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-#   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-#   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-#   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-#   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-#   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-#   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-#   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-
-# set the machine type and cflags for it
-machine = get_option('machine')
-dpdk_conf.set('RTE_MACHINE', machine)
-add_project_arguments('-march=@0@'.format(machine), language: 'c')
-# some libs depend on maths lib
-add_project_link_arguments('-lm', language: 'c')
-dpdk_extra_ldflags += '-lm'
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2017-2019 Intel Corporation
+
+# check the OS is supported, rather than going any further
+supported_exec_envs = ['freebsd', 'linux', 'windows']
+exec_env = host_machine.system()
+if not supported_exec_envs.contains(exec_env)
+    error('unsupported system type "@0@"'.format(exec_env))
+endif
+
+# define a handy variable for checking which OS we have.
+# gives us "is_windows", "is_freebsd" and "is_linux"
+foreach env:supported_exec_envs
+    set_variable('is_' + env, exec_env == env)
+endforeach
+
+# MS linker requires special treatment.
+# TODO: use cc.get_linker_id() with Meson >= 0.54
+is_ms_linker = is_windows and (cc.get_id() == 'clang')
+
+# set the major version, which might be used by drivers and libraries
+# depending on the configuration options
+pver = meson.project_version().split('.')
+major_version = '@0@.@1@'.format(pver.get(0), pver.get(1))
+abi_version = run_command(find_program('cat', 'more'), abi_version_file).stdout().strip()
+
+# Libraries have the abi_version as the filename extension
+# and have the soname be all but the final part of the abi_version.
+# e.g. v20.1 => librte_foo.so.20.1
+#    sonames => librte_foo.so.20
+so_version = abi_version.split('.')[0]
+
+# extract all version information into the build configuration
+dpdk_conf.set('RTE_VER_YEAR', pver.get(0).to_int())
+dpdk_conf.set('RTE_VER_MONTH', pver.get(1).to_int())
+if pver.get(2).contains('-rc')
+    rc_ver = pver.get(2).split('-rc')
+    dpdk_conf.set('RTE_VER_MINOR', rc_ver.get(0).to_int())
+    dpdk_conf.set_quoted('RTE_VER_SUFFIX', '-rc')
+    dpdk_conf.set('RTE_VER_RELEASE', rc_ver.get(1).to_int())
+else
+    dpdk_conf.set('RTE_VER_MINOR', pver.get(2).to_int())
+    dpdk_conf.set_quoted('RTE_VER_SUFFIX', '')
+# for actual, non-rc releases, set the release value to 99 to ensure releases
+# have higher version numbers than their respective release candidates
+    dpdk_conf.set('RTE_VER_RELEASE', 99)
+endif
+
+pmd_subdir_opt = get_option('drivers_install_subdir')
+if pmd_subdir_opt.contains('<VERSION>')
+    pmd_subdir_opt = abi_version.join(pmd_subdir_opt.split('<VERSION>'))
+endif
+driver_install_path = join_paths(get_option('libdir'), pmd_subdir_opt)
+eal_pmd_path = join_paths(get_option('prefix'), driver_install_path)
+
+# driver .so files often depend upon the bus drivers for their connect bus,
+# e.g. ixgbe depends on librte_bus_pci. This means that the bus drivers need
+# to be in the library path, so symlink the drivers from the main lib directory.
+if not is_windows
+    meson.add_install_script('../buildtools/symlink-drivers-solibs.sh',
+            get_option('libdir'), pmd_subdir_opt)
+elif meson.version().version_compare('>=0.55.0')
+    # 0.55.0 is required to use external program with add_install_script
+    meson.add_install_script(py3,
+            files('../buildtools/symlink-drivers-solibs.py'),
+            get_option('libdir'), pmd_subdir_opt, get_option('bindir'))
+endif
+
+# init disable/enable driver lists that will be populated in different places
+disable_drivers = ''
+enable_drivers = ''
+
+platform = get_option('platform')
+
+# set the cpu_instruction_set and cflags for it
+if meson.is_cross_build()
+    cpu_instruction_set = host_machine.cpu()
+else
+    cpu_instruction_set = get_option('cpu_instruction_set')
+    machine = get_option('machine')
+    if machine != 'auto'
+        warning('The "machine" option is deprecated. ' +
+                'Please use "cpu_instruction_set" instead.')
+        if cpu_instruction_set != 'auto'
+            error('Setting both "machine" and ' +
+                '"cpu_instruction_set" is unsupported.')
+        endif
+        cpu_instruction_set = machine
+        if cpu_instruction_set == 'default'
+            cpu_instruction_set = 'generic'
+        endif
+    endif
+endif
+
+if platform == 'native'
+    if cpu_instruction_set == 'auto'
+        cpu_instruction_set = 'native'
+    endif
+elif platform == 'generic'
+    if cpu_instruction_set == 'auto'
+        cpu_instruction_set = 'generic'
+    endif
+endif
+
+# cpu_instruction_set 'generic' is special, it selects the per arch agreed
+# common minimal baseline needed for DPDK. cpu_instruction_set 'default' is
+# also supported with the same meaning for backwards compatibility.
+# That might not be the most optimized, but the most portable version while
+# still being able to support the CPU features required for DPDK.
+# This can be bumped up by the DPDK project, but it can never be an
+# invariant like 'native'
+if cpu_instruction_set == 'generic'
+    if host_machine.cpu_family().startswith('x86')
+        # matches the old pre-meson build systems generic cpu_instruction_set
+        cpu_instruction_set = 'corei7'
+    elif host_machine.cpu_family().startswith('arm')
+        cpu_instruction_set = 'armv7-a'
+    elif host_machine.cpu_family().startswith('aarch')
+        # arm64 manages generic config in config/arm/meson.build
+        cpu_instruction_set = 'generic'
+    elif host_machine.cpu_family().startswith('ppc')
+        cpu_instruction_set = 'power8'
+    endif
+endif
+
+dpdk_conf.set('RTE_MACHINE', cpu_instruction_set)
+machine_args = []
+
+# ppc64 does not support -march= at all, use -mcpu and -mtune for that
+if host_machine.cpu_family().startswith('ppc')
+    machine_args += '-mcpu=' + cpu_instruction_set
+    machine_args += '-mtune=' + cpu_instruction_set
+else
+    machine_args += '-march=' + cpu_instruction_set
+endif
+
+toolchain = cc.get_id()
+dpdk_conf.set_quoted('RTE_TOOLCHAIN', toolchain)
+dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
+
+dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
+dpdk_conf.set('RTE_ARCH_32', cc.sizeof('void *') == 4)
+
+if not is_windows
+    add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
+endif
+
+# use pthreads if available for the platform
+if not is_windows
+    add_project_link_arguments('-pthread', language: 'c')
+    dpdk_extra_ldflags += '-pthread'
+endif
+
+# on some OS, maths functions are in a separate library
+if cc.find_library('m', required : false).found()
+    # some libs depend on maths lib
+    add_project_link_arguments('-lm', language: 'c')
+    dpdk_extra_ldflags += '-lm'
+endif
+
+if is_linux
+    link_lib = 'dl'
+else
+    link_lib = ''
+endif
+
+# if link_lib is empty, do not add it to project properties
+if link_lib != ''
+    add_project_link_arguments('-l' + link_lib, language: 'c')
+    dpdk_extra_ldflags += '-l' + link_lib
+endif
 
 # check for libraries used in multiple places in DPDK
 has_libnuma = 0
-numa_dep = cc.find_library('numa', required: false)
-if numa_dep.found() and cc.has_header('numaif.h')
-	dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
-	has_libnuma = 1
-	add_project_link_arguments('-lnuma', language: 'c')
-	dpdk_extra_ldflags += '-lnuma'
+find_libnuma = true
+if meson.is_cross_build() and not meson.get_cross_property('numa', true)
+    # don't look for libnuma if explicitly disabled in cross build
+    find_libnuma = false
+endif
+if find_libnuma
+    numa_dep = cc.find_library('numa', required: false)
+    if numa_dep.found() and cc.has_header('numaif.h')
+        dpdk_conf.set10('RTE_HAS_LIBNUMA', true)
+        has_libnuma = 1
+        add_project_link_arguments('-lnuma', language: 'c')
+        dpdk_extra_ldflags += '-lnuma'
+    endif
+endif
+
+has_libfdt = 0
+fdt_dep = cc.find_library('libfdt', required: false)
+if fdt_dep.found() and cc.has_header('fdt.h')
+    dpdk_conf.set10('RTE_HAS_LIBFDT', true)
+    has_libfdt = 1
+    add_project_link_arguments('-lfdt', language: 'c')
+    dpdk_extra_ldflags += '-lfdt'
+endif
+
+libexecinfo = cc.find_library('libexecinfo', required: false)
+if libexecinfo.found() and cc.has_header('execinfo.h')
+    add_project_link_arguments('-lexecinfo', language: 'c')
+    dpdk_extra_ldflags += '-lexecinfo'
+endif
+
+libarchive = dependency('libarchive', required: false, method: 'pkg-config')
+if libarchive.found()
+    dpdk_conf.set('RTE_HAS_LIBARCHIVE', 1)
+    # Push libarchive link dependency at the project level to support
+    # statically linking dpdk apps. Details at:
+    # https://inbox.dpdk.org/dev/20210605004024.660267a1@sovereign/
+    add_project_link_arguments('-larchive', language: 'c')
+    dpdk_extra_ldflags += '-larchive'
+endif
+
+# check for libbsd
+libbsd = dependency('libbsd', required: false, method: 'pkg-config')
+if libbsd.found()
+    dpdk_conf.set('RTE_USE_LIBBSD', 1)
+endif
+
+# check for pcap
+pcap_dep = dependency('libpcap', required: false, method: 'pkg-config')
+pcap_lib = is_windows ? 'wpcap' : 'pcap'
+if not pcap_dep.found()
+    # pcap got a pkg-config file only in 1.9.0
+    pcap_dep = cc.find_library(pcap_lib, required: false)
+endif
+if pcap_dep.found() and cc.has_header('pcap.h', dependencies: pcap_dep)
+    dpdk_conf.set('RTE_PORT_PCAP', 1)
+    dpdk_extra_ldflags += '-l@0@'.format(pcap_lib)
+endif
+
+# for clang 32-bit compiles we need libatomic for 64-bit atomic ops
+if cc.get_id() == 'clang' and dpdk_conf.get('RTE_ARCH_64') == false
+    atomic_dep = cc.find_library('atomic', required: true)
+    add_project_link_arguments('-latomic', language: 'c')
+    dpdk_extra_ldflags += '-latomic'
 endif
 
 # add -include rte_config to cflags
@@ -52,33 +242,180 @@ add_project_arguments('-include', 'rte_config.h', language: 'c')
 
 # enable extra warnings and disable any unwanted warnings
 warning_flags = [
-	'-Wsign-compare',
-	'-Wcast-qual',
-	'-Wno-address-of-packed-member',
-	'-Wno-format-truncation'
+        # -Wall is added by meson by default, so add -Wextra only
+        '-Wextra',
+
+        # additional warnings in alphabetical order
+        '-Wcast-qual',
+        '-Wdeprecated',
+        '-Wformat',
+        '-Wformat-nonliteral',
+        '-Wformat-security',
+        '-Wmissing-declarations',
+        '-Wmissing-prototypes',
+        '-Wnested-externs',
+        '-Wold-style-definition',
+        '-Wpointer-arith',
+        '-Wsign-compare',
+        '-Wstrict-prototypes',
+        '-Wundef',
+        '-Wwrite-strings',
+
+        # globally disabled warnings
+        '-Wno-address-of-packed-member',
+        '-Wno-packed-not-aligned',
+        '-Wno-missing-field-initializers',
 ]
+if cc.get_id() == 'gcc' and cc.version().version_compare('>=10.0')
+# FIXME: Bugzilla 396
+    warning_flags += '-Wno-zero-length-bounds'
+endif
+if not dpdk_conf.get('RTE_ARCH_64')
+# for 32-bit, don't warn about casting a 32-bit pointer to 64-bit int - it's fine!!
+    warning_flags += '-Wno-pointer-to-int-cast'
+endif
+if cc.get_id() == 'intel'
+    warning_ids = [181, 188, 2203, 2279, 2557, 3179, 3656]
+    foreach i:warning_ids
+        warning_flags += '-diag-disable=@0@'.format(i)
+    endforeach
+endif
 foreach arg: warning_flags
-	if cc.has_argument(arg)
-		add_project_arguments(arg, language: 'c')
-	endif
+    if cc.has_argument(arg)
+        add_project_arguments(arg, language: 'c')
+    endif
 endforeach
 
-compile_time_cpuflags = []
-if host_machine.cpu_family().startswith('x86')
-	arch_subdir = 'x86'
-	subdir(arch_subdir)
+# set other values pulled from the build options
+dpdk_conf.set('RTE_MAX_ETHPORTS', get_option('max_ethports'))
+dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
+dpdk_conf.set('RTE_ENABLE_TRACE_FP', get_option('enable_trace_fp'))
+# values which have defaults which may be overridden
+dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
+dpdk_conf.set('RTE_DRIVER_MEMPOOL_BUCKET_SIZE_KB', 64)
+dpdk_conf.set('RTE_LIBRTE_DPAA2_USE_PHYS_IOVA', true)
+if dpdk_conf.get('RTE_ARCH_64')
+    dpdk_conf.set('RTE_MAX_MEM_MB', 524288)
+else # for 32-bit we need smaller reserved memory areas
+    dpdk_conf.set('RTE_MAX_MEM_MB', 2048)
 endif
+
+
+compile_time_cpuflags = []
+subdir(arch_subdir)
 dpdk_conf.set('RTE_COMPILE_TIME_CPUFLAGS', ','.join(compile_time_cpuflags))
 
+# apply cross-specific options
+if meson.is_cross_build()
+    # configure RTE_MAX_LCORE and RTE_MAX_NUMA_NODES from cross file
+    cross_max_lcores = meson.get_cross_property('max_lcores', 0)
+    if cross_max_lcores != 0
+        message('Setting RTE_MAX_LCORE from cross file')
+        dpdk_conf.set('RTE_MAX_LCORE', cross_max_lcores)
+    endif
+    cross_max_numa_nodes = meson.get_cross_property('max_numa_nodes', 0)
+    if cross_max_numa_nodes != 0
+        message('Setting RTE_MAX_NUMA_NODES from cross file')
+        dpdk_conf.set('RTE_MAX_NUMA_NODES', cross_max_numa_nodes)
+    endif
+endif
+
+max_lcores = get_option('max_lcores')
+if max_lcores == 'detect'
+	# discovery makes sense only for non-cross builds
+	if meson.is_cross_build()
+		error('Discovery of max_lcores is not supported for cross-compilation.')
+	endif
+	# overwrite the default value with discovered values
+	max_lcores = run_command(get_cpu_count_cmd).stdout().to_int()
+	min_lcores = 2
+	# DPDK must be built for at least 2 cores
+	if max_lcores < min_lcores
+		message('Found less than @0@ cores, building for @0@ cores'.format(min_lcores))
+		max_lcores = min_lcores
+	else
+		message('Found @0@ cores'.format(max_lcores))
+	endif
+	dpdk_conf.set('RTE_MAX_LCORE', max_lcores)
+elif max_lcores != 'default'
+	# overwrite the default value from arch_subdir with user input
+	dpdk_conf.set('RTE_MAX_LCORE', max_lcores.to_int())
+endif
+
+max_numa_nodes = get_option('max_numa_nodes')
+if max_numa_nodes == 'detect'
+	# discovery makes sense only for non-cross builds
+	if meson.is_cross_build()
+		error('Discovery of max_numa_nodes not supported for cross-compilation.')
+	endif
+	# overwrite the default value with discovered values
+	max_numa_nodes = run_command(get_numa_count_cmd).stdout().to_int()
+	message('Found @0@ numa nodes'.format(max_numa_nodes))
+	dpdk_conf.set('RTE_MAX_NUMA_NODES', max_numa_nodes)
+elif max_numa_nodes != 'default'
+	# overwrite the default value from arch_subdir with user input
+	dpdk_conf.set('RTE_MAX_NUMA_NODES', max_numa_nodes.to_int())
+endif
+
+# check that CPU and NUMA counts are set
+if not dpdk_conf.has('RTE_MAX_LCORE')
+	error('Number of CPU cores not specified.')
+endif
+if not dpdk_conf.has('RTE_MAX_NUMA_NODES')
+	error('Number of NUMA nodes not specified.')
+endif
+
 # set the install path for the drivers
 dpdk_conf.set_quoted('RTE_EAL_PMD_PATH', eal_pmd_path)
 
-# set other values pulled from the build options
-dpdk_conf.set('RTE_MAX_LCORE', get_option('max_lcores'))
-dpdk_conf.set('RTE_MAX_NUMA_NODES', get_option('max_numa_nodes'))
-dpdk_conf.set('RTE_LIBEAL_USE_HPET', get_option('use_hpet'))
-dpdk_conf.set('RTE_EAL_ALLOW_INV_SOCKET_ID', get_option('allow_invalid_socket_id'))
-# values which have defaults which may be overridden
-dpdk_conf.set('RTE_MAX_VFIO_GROUPS', 64)
+install_headers(['rte_config.h'],
+        subdir: get_option('include_subdir_arch'))
+
+# enable VFIO only if it is linux OS
+dpdk_conf.set('RTE_EAL_VFIO', is_linux)
 
-install_headers('rte_config.h', subdir: get_option('include_subdir_arch'))
+# specify -D_GNU_SOURCE unconditionally
+add_project_arguments('-D_GNU_SOURCE', language: 'c')
+
+# specify -D__BSD_VISIBLE for FreeBSD
+if is_freebsd
+    add_project_arguments('-D__BSD_VISIBLE', language: 'c')
+endif
+
+if is_windows
+    # VirtualAlloc2() is available since Windows 10 / Server 2019.
+    # It's essential for EAL, so we don't support older versions.
+    add_project_arguments('-D_WIN32_WINNT=0x0A00', language: 'c')
+
+    # Use MinGW-w64 stdio, because DPDK assumes ANSI-compliant formatting.
+    if cc.get_id() == 'gcc'
+        add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
+    endif
+
+    # Disable secure CRT deprecated warnings for clang
+    if cc.get_id() == 'clang'
+        add_project_arguments('-D_CRT_SECURE_NO_WARNINGS', language: 'c')
+    endif
+endif
+
+if get_option('b_lto')
+    if cc.has_argument('-ffat-lto-objects')
+        add_project_arguments('-ffat-lto-objects', language: 'c')
+    else
+        error('compiler does not support fat LTO objects - please turn LTO off')
+    endif
+    # workaround for gcc bug 81440
+    if cc.get_id() == 'gcc' and cc.version().version_compare('<8.0')
+        add_project_arguments('-Wno-lto-type-mismatch', language: 'c')
+        add_project_link_arguments('-Wno-lto-type-mismatch', language: 'c')
+    endif
+endif
+
+if get_option('default_library') == 'both'
+    error( '''
+ Unsupported value "both" for "default_library" option.
+
+ NOTE: DPDK always builds both shared and static libraries.  Please set
+ "default_library" to either "static" or "shared" to select default linkage
+ for apps and any examples.''')
+endif