1 system_ss.add(files('core.c', 'cluster.c')) 2 3 system_ss.add(when: 'CONFIG_ARM11MPCORE', if_true: files('arm11mpcore.c')) 4 system_ss.add(when: 'CONFIG_REALVIEW', if_true: files('realview_mpcore.c')) 5 system_ss.add(when: 'CONFIG_A9MPCORE', if_true: files('a9mpcore.c')) 6 specific_ss.add(when: 'CONFIG_A15MPCORE', if_true: files('a15mpcore.c')) 7