1i386_kvm_ss = ss.source_set() 2i386_kvm_ss.add(files('clock.c')) 3i386_kvm_ss.add(when: 'CONFIG_APIC', if_true: files('apic.c')) 4i386_kvm_ss.add(when: 'CONFIG_I8254', if_true: files('i8254.c')) 5i386_kvm_ss.add(when: 'CONFIG_I8259', if_true: files('i8259.c')) 6i386_kvm_ss.add(when: 'CONFIG_IOAPIC', if_true: files('ioapic.c')) 7i386_kvm_ss.add(when: 'CONFIG_XEN_EMU', if_true: files( 8 'xen_overlay.c', 9 'xen_evtchn.c', 10 'xen_gnttab.c', 11 'xen_xenstore.c', 12 'xen_primary_console.c', 13 'xenstore_impl.c', 14 )) 15 16i386_ss.add_all(when: 'CONFIG_KVM', if_true: i386_kvm_ss) 17 18xen_stubs_ss = ss.source_set() 19xen_stubs_ss.add(when: 'CONFIG_XEN_EMU', if_false: files( 20 'xen-stubs.c', 21)) 22 23specific_ss.add_all(when: 'CONFIG_SYSTEM_ONLY', if_true: xen_stubs_ss) 24