numam-dpdk/meson.build
Bruce Richardson 68b1f1cda5 build: check AVX512 rather than binutils version
Rather than checking the binutils version number, which can lead to
unnecessary disabling of AVX512 if fixes have been backported to distro
versions, we can instead check the output of "as" from binutils to see if
it is correct.

The check in the script uses the minimal assembly reproduction code posted
to the public bug tracker for gcc/binutils for those issues [1]. If the
binutils bug is present, the instruction parameters - specifically the
displacement parameter - will be different in the disassembled output
compared to the input. Therefore the check involves assembling a single
instruction and disassembling it again, checking that the two match.

[1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90028

Signed-off-by: Bruce Richardson <bruce.richardson@intel.com>
Tested-by: Harry van Haaren <harry.van.haaren@intel.com>
2020-07-05 21:32:40 +02:00

121 lines
3.4 KiB
Meson

# SPDX-License-Identifier: BSD-3-Clause
# Copyright(c) 2017-2019 Intel Corporation
project('DPDK', 'C',
# Get version number from file.
# Fallback to "more" for Windows compatibility.
version: run_command(find_program('cat', 'more'),
files('VERSION')).stdout().strip(),
license: 'BSD',
default_options: ['buildtype=release', 'default_library=static'],
meson_version: '>= 0.47.1'
)
# set up some global vars for compiler, platform, configuration, etc.
cc = meson.get_compiler('c')
dpdk_conf = configuration_data()
dpdk_libraries = []
dpdk_static_libraries = []
dpdk_driver_classes = []
dpdk_drivers = []
dpdk_extra_ldflags = []
dpdk_libs_disabled = []
dpdk_drvs_disabled = []
abi_version_file = files('ABI_VERSION')
if host_machine.cpu_family().startswith('x86')
arch_subdir = 'x86'
elif host_machine.cpu_family().startswith('arm') or host_machine.cpu_family().startswith('aarch')
arch_subdir = 'arm'
elif host_machine.cpu_family().startswith('ppc')
arch_subdir = 'ppc'
endif
# configure the build, and make sure configs here and in config folder are
# able to be included in any file. We also store a global array of include dirs
# for passing to pmdinfogen scripts
global_inc = include_directories('.', 'config',
'lib/librte_eal/include',
'lib/librte_eal/@0@/include'.format(host_machine.system()),
'lib/librte_eal/@0@/include'.format(arch_subdir),
)
# do configuration and get tool paths
subdir('buildtools')
subdir('config')
# build libs and drivers
subdir('buildtools/pmdinfogen')
subdir('lib')
subdir('drivers')
# build binaries and installable tools
subdir('usertools')
subdir('app')
# build docs
subdir('doc')
# build any examples explicitly requested - useful for developers - and
# install any example code into the appropriate install path
subdir('examples')
# build kernel modules if enabled
if get_option('enable_kmods')
subdir('kernel')
endif
# write the build config
build_cfg = 'rte_build_config.h'
configure_file(output: build_cfg,
configuration: dpdk_conf,
install_dir: join_paths(get_option('includedir'),
get_option('include_subdir_arch')))
# build pkg-config files for dpdk
subdir('buildtools/pkg-config')
# final output, list all the libs and drivers to be built
# this does not affect any part of the build, for information only.
output_message = '\n=================\nLibraries Enabled\n=================\n'
output_message += '\nlibs:\n\t'
output_count = 0
foreach lib:enabled_libs
output_message += lib + ', '
output_count += 1
if output_count == 8
output_message += '\n\t'
output_count = 0
endif
endforeach
message(output_message + '\n')
output_message = '\n===============\nDrivers Enabled\n===============\n'
foreach class:dpdk_driver_classes
class_drivers = get_variable(class + '_drivers')
output_message += '\n' + class + ':\n\t'
output_count = 0
foreach drv:class_drivers
output_message += drv + ', '
output_count += 1
if output_count == 8
output_message += '\n\t'
output_count = 0
endif
endforeach
endforeach
message(output_message + '\n')
output_message = '\n=================\nContent Skipped\n=================\n'
output_message += '\nlibs:\n\t'
foreach lib:dpdk_libs_disabled
reason = get_variable(lib.underscorify() + '_disable_reason')
output_message += lib + ':\t' + reason + '\n\t'
endforeach
output_message += '\ndrivers:\n\t'
foreach drv:dpdk_drvs_disabled
reason = get_variable(drv.underscorify() + '_disable_reason')
output_message += drv + ':\t' + reason + '\n\t'
endforeach
message(output_message + '\n')