mirror of
https://gitlab.freedesktop.org/NetworkManager/NetworkManager.git
synced 2026-01-01 23:30:13 +01:00
c92a3ca5c2
We use a linker version script "NetworkManager.ver", to hide symbols from NetworkManager that are not used. That is important due to our habit of using internal helper libraries that we link statically everywhere, without handpicking the symbols we actually need. We want the tooling to get rid of unnecessary symbols. However, NetworkManager loads shared libraries for settings and device plugins. These libraries require symbols from the NetworkManager binary, but which one depends on build options. Hence, we also generate "NetworkManager.ver" by the "tools/create-exports-NetworkManager.sh" script. For that the script uses "nm" to find symbols that are undefined in the plugin libraries but defined in NetworkManager. With autotools the script looked at "./src/.libs/libNetworkManager.a" to find the present symbols. Note that for meson that already didn't work, and we build instead an intermediate NetworkManager binary first (with all symbols exposed). With LTO, "nm" doesn't find all symbols in "./src/.libs/libNetworkManager.a", and consequently they are not exported and dropped/hidden. This also causes unit tests to fail with LTO, because our test script "tools/check-exports.sh" catches such bugs. Fix that by also with autotools generate a complete "NetworkManager-all-sym" binary that is used to generate "NetworkManager.ver", before rebuilding "NetworkManager" again.
321 lines
7.3 KiB
Meson
321 lines
7.3 KiB
Meson
# SPDX-License-Identifier: LGPL-2.1+
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src_inc = include_directories('.')
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daemon_nm_default_dep = declare_dependency(
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sources: libnm_core_enum_sources[1],
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include_directories: src_inc,
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dependencies: libnm_core_nm_default_dep,
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)
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install_data(
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'org.freedesktop.NetworkManager.conf',
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install_dir: dbus_conf_dir,
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)
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subdir('systemd')
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core_plugins = []
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daemon_c_flags = ['-DNETWORKMANAGER_COMPILATION=NM_NETWORKMANAGER_COMPILATION_DAEMON']
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sources = files(
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'dhcp/nm-dhcp-client.c',
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'dhcp/nm-dhcp-manager.c',
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'dhcp/nm-dhcp-nettools.c',
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'dhcp/nm-dhcp-systemd.c',
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'dhcp/nm-dhcp-utils.c',
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'dhcp/nm-dhcp-options.c',
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'ndisc/nm-lndp-ndisc.c',
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'ndisc/nm-ndisc.c',
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'platform/nm-netlink.c',
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'platform/wifi/nm-wifi-utils-nl80211.c',
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'platform/wifi/nm-wifi-utils.c',
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'platform/wpan/nm-wpan-utils.c',
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'platform/nm-linux-platform.c',
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'platform/nm-platform.c',
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'platform/nm-platform-utils.c',
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'platform/nmp-netns.c',
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'platform/nmp-object.c',
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'platform/nmp-rules-manager.c',
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'main-utils.c',
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'NetworkManagerUtils.c',
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'nm-core-utils.c',
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'nm-dbus-object.c',
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'nm-dbus-utils.c',
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'nm-netns.c',
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'nm-l3-config-data.c',
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'nm-l3cfg.c',
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'nm-ip-config.c',
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'nm-ip4-config.c',
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'nm-ip6-config.c',
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'nm-logging.c',
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)
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deps = [
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daemon_nm_default_dep,
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libn_dhcp4_dep,
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libnm_keyfile_dep,
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libnm_core_dep,
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libnm_systemd_shared_dep,
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libnm_udev_aux_dep,
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libsystemd_dep,
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libudev_dep,
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]
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if enable_wext
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sources += files('platform/wifi/nm-wifi-utils-wext.c')
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endif
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libnetwork_manager_base = static_library(
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nm_name + 'Base',
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sources: sources,
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dependencies: deps,
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c_args: daemon_c_flags,
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)
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sources = files(
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'devices/nm-acd-manager.c',
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'devices/nm-device-6lowpan.c',
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'devices/nm-device-bond.c',
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'devices/nm-device-bridge.c',
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'devices/nm-device.c',
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'devices/nm-device-dummy.c',
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'devices/nm-device-ethernet.c',
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'devices/nm-device-ethernet-utils.c',
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'devices/nm-device-factory.c',
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'devices/nm-device-generic.c',
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'devices/nm-device-infiniband.c',
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'devices/nm-device-ip-tunnel.c',
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'devices/nm-device-macsec.c',
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'devices/nm-device-macvlan.c',
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'devices/nm-device-ppp.c',
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'devices/nm-device-tun.c',
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'devices/nm-device-veth.c',
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'devices/nm-device-vlan.c',
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'devices/nm-device-vrf.c',
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'devices/nm-device-vxlan.c',
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'devices/nm-device-wireguard.c',
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'devices/nm-device-wpan.c',
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'devices/nm-lldp-listener.c',
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'dhcp/nm-dhcp-dhclient.c',
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'dhcp/nm-dhcp-dhclient-utils.c',
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'dhcp/nm-dhcp-dhcpcanon.c',
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'dhcp/nm-dhcp-dhcpcd.c',
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'dhcp/nm-dhcp-listener.c',
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'dns/nm-dns-dnsmasq.c',
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'dns/nm-dns-manager.c',
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'dns/nm-dns-plugin.c',
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'dns/nm-dns-systemd-resolved.c',
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'dns/nm-dns-unbound.c',
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'dnsmasq/nm-dnsmasq-manager.c',
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'dnsmasq/nm-dnsmasq-utils.c',
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'ppp/nm-ppp-manager-call.c',
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'settings/plugins/keyfile/nms-keyfile-storage.c',
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'settings/plugins/keyfile/nms-keyfile-plugin.c',
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'settings/plugins/keyfile/nms-keyfile-reader.c',
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'settings/plugins/keyfile/nms-keyfile-utils.c',
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'settings/plugins/keyfile/nms-keyfile-writer.c',
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'settings/nm-agent-manager.c',
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'settings/nm-secret-agent.c',
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'settings/nm-settings.c',
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'settings/nm-settings-connection.c',
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'settings/nm-settings-plugin.c',
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'settings/nm-settings-storage.c',
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'settings/nm-settings-utils.c',
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'supplicant/nm-supplicant-config.c',
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'supplicant/nm-supplicant-interface.c',
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'supplicant/nm-supplicant-manager.c',
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'supplicant/nm-supplicant-settings-verify.c',
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'vpn/nm-vpn-connection.c',
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'vpn/nm-vpn-manager.c',
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'nm-active-connection.c',
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'nm-act-request.c',
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'nm-audit-manager.c',
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'nm-auth-manager.c',
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'nm-auth-utils.c',
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'nm-dbus-manager.c',
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'nm-checkpoint.c',
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'nm-checkpoint-manager.c',
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'nm-config.c',
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'nm-config-data.c',
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'nm-connectivity.c',
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'nm-dcb.c',
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'nm-dhcp-config.c',
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'nm-dispatcher.c',
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'nm-firewall-manager.c',
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'nm-hostname-manager.c',
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'nm-keep-alive.c',
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'nm-manager.c',
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'nm-pacrunner-manager.c',
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'nm-policy.c',
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'nm-proxy-config.c',
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'nm-rfkill-manager.c',
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'nm-session-monitor.c',
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'nm-sleep-monitor.c',
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)
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nm_deps = [
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daemon_nm_default_dep,
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dl_dep,
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libn_acd_dep,
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libndp_dep,
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libudev_dep,
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logind_dep,
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]
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nm_links = [
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libnetwork_manager_base,
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libnm_systemd_core,
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libnm_systemd_shared,
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]
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if enable_concheck
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nm_deps += libcurl_dep
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endif
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if enable_libaudit
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nm_deps += libaudit_dep
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endif
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if enable_libpsl
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nm_deps += libpsl_dep
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endif
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if enable_selinux
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nm_deps += selinux_dep
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endif
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libnetwork_manager = static_library(
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nm_name,
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sources: sources,
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dependencies: nm_deps,
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c_args: daemon_c_flags,
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link_with: nm_links,
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)
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deps = [
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daemon_nm_default_dep,
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dl_dep,
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libndp_dep,
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libudev_dep,
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]
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name = 'nm-iface-helper'
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executable(
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name,
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name + '.c',
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dependencies: deps,
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c_args: daemon_c_flags,
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link_with: nm_links,
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link_args: ldflags_linker_script_binary,
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link_depends: linker_script_binary,
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install: true,
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install_dir: nm_libexecdir,
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)
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if enable_tests
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test_c_flags = daemon_c_flags + ['-DNETWORKMANAGER_COMPILATION_TEST']
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if require_root_tests
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test_c_flags += ['-DREQUIRE_ROOT_TESTS=1']
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endif
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sources = files(
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'ndisc/nm-fake-ndisc.c',
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'platform/tests/test-common.c',
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'platform/nm-fake-platform.c',
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)
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libnetwork_manager_test = static_library(
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nm_name + 'Test',
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sources: sources,
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dependencies: daemon_nm_default_dep,
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c_args: test_c_flags,
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link_with: libnetwork_manager,
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)
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libnetwork_manager_test_dep = declare_dependency(
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dependencies: daemon_nm_default_dep,
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link_with: libnetwork_manager_test,
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)
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subdir('dnsmasq/tests')
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subdir('ndisc/tests')
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subdir('platform/tests')
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subdir('supplicant/tests')
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subdir('tests')
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endif
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subdir('dhcp')
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if enable_ppp
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subdir('ppp')
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endif
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subdir('devices')
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subdir('initrd')
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subdir('settings/plugins')
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# NetworkManager binary
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create_exports_networkmanager = join_paths(source_root, 'tools', 'create-exports-NetworkManager.sh')
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symbol_map_name = 'NetworkManager.ver'
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# libNetworkManager.a, as built by meson doesn't contain all symbols
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# from libNetworkManagerBase.a and other static libraries, unless we
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# add dependencies with link_whole, only supported in meson >= 0.46.
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# Create an executable with full symbols that we use in place of the
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# library to enumerate the symbols.
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network_manager_all_sym = executable(
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'NetworkManager-all-sym',
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'main.c',
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dependencies: nm_deps,
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c_args: daemon_c_flags,
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link_args: '-Wl,--no-gc-sections',
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link_whole: [libnetwork_manager, libnetwork_manager_base, libnm_core],
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)
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# this uses symbols from nm-full-symbols instead of libNetworkManager.a
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ver_script = custom_target(
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symbol_map_name,
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output: symbol_map_name,
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depends: [network_manager_all_sym, core_plugins],
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command: [create_exports_networkmanager, '--called-from-build', source_root],
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)
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ldflags = [
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'-rdynamic',
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'-Wl,--version-script,@0@'.format(ver_script.full_path()),
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]
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network_manager = executable(
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nm_name,
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'main.c',
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dependencies: nm_deps,
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c_args: daemon_c_flags,
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link_with: libnetwork_manager,
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link_args: ldflags,
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link_depends: ver_script,
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install: true,
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install_dir: nm_sbindir,
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)
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if enable_tests
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foreach plugin: core_plugins
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plugin_path = plugin.full_path()
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test(
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'sym/' + plugin_path.split('/')[-1],
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network_manager,
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args: '--version',
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env: ['LD_BIND_NOW=1', 'LD_PRELOAD=' + plugin_path],
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)
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endforeach
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endif
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test(
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'check-config-options',
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find_program(join_paths(source_root, 'tools', 'check-config-options.sh')),
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args: source_root,
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)
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