diff options
Diffstat (limited to 'meson.build')
| -rw-r--r-- | meson.build | 365 |
1 files changed, 365 insertions, 0 deletions
diff --git a/meson.build b/meson.build new file mode 100644 index 0000000..12c5eb3 --- /dev/null +++ b/meson.build @@ -0,0 +1,365 @@ +# SPDX-License-Identifier: GPL-3.0-or-later + +project( + 'knot-resolver', + ['c', 'cpp'], + license: 'GPLv3+', + version: '5.7.1', + default_options: ['c_std=gnu11', 'b_ndebug=true'], + meson_version: '>=0.49', +) + + +# Unity build +if get_option('unity') != 'off' + error('unity builds are not supported! ' + + 'https://gitlab.nic.cz/knot/knot-resolver/issues/460') +endif + + +message('--- required dependencies ---') +knot_version = '>=3.0.2' +libknot = dependency('libknot', version: knot_version) +libdnssec = dependency('libdnssec', version: knot_version) +libzscanner = dependency('libzscanner', version: knot_version) +libuv = dependency('libuv', version: '>=1.7') +lmdb = dependency('lmdb', required: false) +if not lmdb.found() # darwin workaround: missing pkgconfig + lmdb = meson.get_compiler('c').find_library('lmdb') +endif +gnutls = dependency('gnutls') +luajit = dependency('luajit') +message('------------------------------') + + +# Variables +libkres_soversion = 9 + +libext = '.so' +if host_machine.system() == 'darwin' + libext = '.dylib' +elif host_machine.system() == 'cygwin' + libext = '.dll' +endif + +## Paths +prefix = get_option('prefix') +data_dir = prefix / get_option('datadir') / 'knot-resolver' +doc_dir = prefix / get_option('datadir') / 'doc' / 'knot-resolver' +info_dir = prefix / get_option('datadir') / 'info' +examples_dir = doc_dir / 'examples' +etc_dir = prefix / get_option('sysconfdir') / 'knot-resolver' +lib_dir = prefix / get_option('libdir') / 'knot-resolver' +modules_dir = lib_dir / 'kres_modules' +sbin_dir = prefix / get_option('sbindir') +run_dir = '/run' / 'knot-resolver' +systemd_work_dir = prefix / get_option('localstatedir') / 'lib' / 'knot-resolver' +systemd_cache_dir = prefix / get_option('localstatedir') / 'cache' / 'knot-resolver' +systemd_unit_dir = prefix / 'lib' / 'systemd' / 'system' +systemd_tmpfiles_dir = prefix / 'lib' / 'tmpfiles.d' +systemd_sysusers_dir = prefix / 'lib' / 'sysusers.d' + +## Trust anchors +managed_ta = get_option('managed_ta') == 'enabled' +keyfile_default = etc_dir / get_option('keyfile_default') +if keyfile_default == etc_dir / 'root.keys' + managed_ta = managed_ta or get_option('managed_ta') == 'auto' +endif +install_root_keys = get_option('install_root_keys') == 'enabled' +if get_option('install_root_keys') == 'auto' + install_root_keys = managed_ta +endif + + +## Root hints +root_hints = etc_dir / get_option('root_hints') +if root_hints == etc_dir / 'root.hints' + install_root_hints = true +else + install_root_hints = false +endif + +## Additional options +user = get_option('user') +group = get_option('group') + +## Optional dependencies +message('--- optional dependencies ---') +nghttp2 = dependency('libnghttp2', required: false) +openssl = dependency('openssl', required: false) + +have_asprintf = meson.get_compiler('c').has_function('asprintf', + prefix: '#define _GNU_SOURCE\n#include <stdio.h>') + +### capng +# use empty name to disable the dependency, but still compile the dependent kresd +capng_name = get_option('capng') == 'disabled' ? '' : 'libcap-ng' +capng = dependency(capng_name, required: get_option('capng') == 'enabled') + +### sendmmsg +has_sendmmsg = meson.get_compiler('c').has_function('sendmmsg', + prefix: '#define _GNU_SOURCE\n#include <sys/socket.h>') +if get_option('sendmmsg') == 'enabled' and not has_sendmmsg + error('missing compiler function: sendmmsg(), use -Dsendmmsg=disabled') +elif get_option('sendmmsg') == 'auto' + sendmmsg = has_sendmmsg +else + sendmmsg = get_option('sendmmsg') == 'enabled' +endif + +### XDP: not configurable - we just check if libknot supports it +xdp = meson.get_compiler('c').has_header('libknot/xdp/xdp.h') + +### Systemd +systemd_files = get_option('systemd_files') +libsystemd = dependency('libsystemd', required: systemd_files == 'enabled') + +### Allocator +# use empty name to disable the dependency, but still compile the dependent kresd +malloc_name = get_option('malloc') == 'disabled' ? '' : 'jemalloc' +malloc = meson.get_compiler('c').find_library( + malloc_name, + required: get_option('malloc') == 'jemalloc', + #static: false, #TODO: add when bumping meson to >= 0.51; + # static linking would most likely cause issues. + # Fortunately it seems unlikely that dynamic wouldn't be found and static would be. +) + +message('---------------------------') + +## Compiler args +add_project_arguments( + '-D_GNU_SOURCE', + + # Various warnings. Let's use any warning that doesn't "cause problems". + '-Wall', + '-Wformat', + '-Wformat-security', + '-Wtype-limits', + '-Wshadow', + '-Werror=implicit-function-declaration', # Probably messed up includes; implicit functions are evil! + '-Werror=attributes', # Missing cleanup attribute could lead to memory leaks. + '-Wstrict-prototypes', # `void foo();` is basically always a mistake, in our code at least. + '-Wold-style-definition', + '-Wignored-qualifiers', + '-Woverride-init', + '-Wuninitialized', + + '-fvisibility=hidden', + '-DHAVE_ASPRINTF=' + have_asprintf.to_int().to_string(), + + # libuv handles have aliasing problems; see: + # https://github.com/libuv/libuv/pull/2588/files#diff-04c6e90faac2675aa89e2176d2eec7d8 + # https://github.com/libuv/libuv/issues/1230#issuecomment-569030944 + # Performance impact in our case seems OK: + # https://gitlab.nic.cz/knot/knot-resolver/-/merge_requests/962#note_147407 + '-fno-strict-aliasing', + + language: 'c', +) + +# Files for clang-tidy lint +c_src_lint = files() + +# Lists of tests +# These lists are added to from subdir() and finally used in tests/* + +unit_tests = [ + # [test_name, files(test)] +] + +config_tests = [ + # [name, files(test)] # or + # [name, files(test), [extra_suites]] +] + +integr_tests = [ + # [name, test_dir_relative_to_src_root] +] + + +# kresconfig.h +conf_data = configuration_data() +conf_data.set_quoted('PACKAGE_VERSION', meson.project_version()) +conf_data.set_quoted('LIBDIR', lib_dir) +conf_data.set_quoted('ROOTHINTS', root_hints) +conf_data.set_quoted('LIBEXT', libext) +conf_data.set_quoted('OPERATING_SYSTEM', host_machine.system()) +conf_data.set_quoted('libzscanner_SONAME', + libzscanner.get_pkgconfig_variable('soname')) +conf_data.set_quoted('libknot_SONAME', + libknot.get_pkgconfig_variable('soname')) +conf_data.set('ENABLE_LIBSYSTEMD', libsystemd.found().to_int()) +conf_data.set('ENABLE_SENDMMSG', sendmmsg.to_int()) +conf_data.set('ENABLE_XDP', xdp.to_int()) +conf_data.set('ENABLE_CAP_NG', capng.found().to_int()) +conf_data.set('ENABLE_JEMALLOC', malloc.found().to_int()) +conf_data.set('ENABLE_DOH2', nghttp2.found().to_int()) +conf_data.set('DBG_ASSERTION_ABORT', get_option('debug').to_int()) +if get_option('debug') + conf_data.set('DBG_ASSERTION_FORK', '0') +else + conf_data.set('DBG_ASSERTION_FORK', '(5 * 60 * 1000) /* five minutes */') +endif + +kresconfig = configure_file( + output: 'kresconfig.h', + configuration: conf_data, +) + +kresconfig_dep = declare_dependency( + sources: kresconfig, + include_directories: include_directories('.'), +) + + +# Compile +## Dependencies first +subdir('contrib') +subdir('lib') + +## Remaining code +subdir('daemon') +subdir('modules') +subdir('utils') +if get_option('bench') == 'enabled' + subdir('bench') +endif + + +# Tests +subdir('tests') + + +# Documentation & configs +subdir('doc') +subdir('etc') + + +# Systemd unit files +if systemd_files != 'disabled' + subdir('systemd') +endif + + +# Additional files +install_data( + sources: [ + 'AUTHORS', + 'COPYING', + 'NEWS', + ], + install_dir: doc_dir, +) + + +# Lint +message('--- lint dependencies ---') +clangtidy = find_program('clang-tidy', required: false) +luacheck = find_program('luacheck', required: false) +flake8 = find_program('flake8', required: false) +pylint_run = find_program('scripts/run-pylint.sh') +message('-------------------------') + +if clangtidy.found() + run_target( + 'tidy', + command: [ + clangtidy, + '-quiet', + '-extra-arg=-Wno-unknown-warning-option', # version in CI is weird in this + '-p', meson.build_root(), + ] + c_src_lint + ) +endif + +if luacheck.found() + run_target( + 'luacheck', + command: [ + luacheck, + '--codes', + '--formatter', 'TAP', + meson.source_root(), + ], + ) +endif + +if flake8.found() + run_target( + 'flake8', + command: [ + flake8, + '--max-line-length=100', + meson.source_root() / 'tests' / 'pytests', + ], + ) +endif + +run_target( + 'pylint', + command: pylint_run, +) + + +# Summary message +# NOTE: ternary operator in format() not supported +# https://github.com/mesonbuild/meson/issues/2404 +s_managed_ta = managed_ta ? 'enabled' : 'disabled' +s_install_root_keys = install_root_keys ? 'enabled' : 'disabled' +s_build_client = build_client ? 'enabled' : 'disabled' +s_build_utils = build_utils ? 'enabled' : 'disabled' +s_build_dnstap = build_dnstap ? 'enabled' : 'disabled' +s_build_unit_tests = build_unit_tests ? 'enabled' : 'disabled' +s_build_config_tests = build_config_tests ? 'enabled' : 'disabled' +s_build_extra_tests = build_extra_tests ? 'enabled' : 'disabled' +s_install_kresd_conf = install_kresd_conf ? 'enabled' : 'disabled' +s_sendmmsg = sendmmsg ? 'enabled': 'disabled' +s_xdp = xdp ? 'enabled': 'disabled' +s_openssl = openssl.found() ? 'present': 'missing' +s_capng = capng.found() ? 'enabled': 'disabled' +s_malloc = malloc.found() ? 'jemalloc' : 'libc default' +s_doh2 = nghttp2.found() ? 'enabled': 'disabled' +message(''' + +======================= SUMMARY ======================= + + paths + prefix: @0@'''.format(prefix) + ''' + lib_dir: @0@'''.format(lib_dir) + ''' + sbin_dir: @0@'''.format(sbin_dir) + ''' + etc_dir: @0@'''.format(etc_dir) + ''' + root.hints: @0@'''.format(root_hints) + ''' + + trust_anchors + keyfile_default: @0@'''.format(keyfile_default) + ''' + managed_ta: @0@'''.format(s_managed_ta) + ''' + install_root_keys: @0@'''.format(s_install_root_keys) + ''' + + systemd: + files: @0@'''.format(systemd_files) + ''' + work_dir: @0@'''.format(systemd_work_dir) + ''' + cache_dir: @0@'''.format(systemd_cache_dir) + ''' + + optional components + client: @0@'''.format(s_build_client) + ''' + utils: @0@'''.format(s_build_utils) + ''' + dnstap: @0@'''.format(s_build_dnstap) + ''' + unit_tests: @0@'''.format(s_build_unit_tests) + ''' + config_tests: @0@'''.format(s_build_config_tests) + ''' + extra_tests: @0@'''.format(s_build_extra_tests) + ''' + + additional + user: @0@'''.format(user) + ''' + group: @0@'''.format(group) + ''' + install_kresd_conf: @0@'''.format(s_install_kresd_conf) + ''' + sendmmsg: @0@'''.format(s_sendmmsg) + ''' + XDP (in libknot): @0@'''.format(s_xdp) + ''' + openssl debug: @0@'''.format(s_openssl) + ''' + capng: @0@'''.format(s_capng) + ''' + malloc: @0@'''.format(s_malloc) + ''' + doh2: @0@'''.format(s_doh2) + ''' + +======================================================= + +''') |