1# SPDX-License-Identifier: GPL-2.0 2# 3# Makefile for the linux kernel. 4# 5 6ifdef CONFIG_PPC32 7CFLAGS_prom_init.o += -fPIC 8CFLAGS_btext.o += -fPIC 9endif 10 11CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 12CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 13CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 14CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 15CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 16 17CFLAGS_prom_init.o += -fno-stack-protector 18CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING 19CFLAGS_prom_init.o += -ffreestanding 20CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized) 21 22ifdef CONFIG_FUNCTION_TRACER 23# Do not trace early boot code 24CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE) 25CFLAGS_REMOVE_prom_init.o = $(CC_FLAGS_FTRACE) 26CFLAGS_REMOVE_btext.o = $(CC_FLAGS_FTRACE) 27CFLAGS_REMOVE_prom.o = $(CC_FLAGS_FTRACE) 28endif 29 30KASAN_SANITIZE_early_32.o := n 31KASAN_SANITIZE_cputable.o := n 32KASAN_SANITIZE_prom_init.o := n 33KASAN_SANITIZE_btext.o := n 34KASAN_SANITIZE_paca.o := n 35KASAN_SANITIZE_setup_64.o := n 36KASAN_SANITIZE_mce.o := n 37KASAN_SANITIZE_mce_power.o := n 38KASAN_SANITIZE_udbg.o := n 39KASAN_SANITIZE_udbg_16550.o := n 40 41# we have to be particularly careful in ppc64 to exclude code that 42# runs with translations off, as we cannot access the shadow with 43# translations off. However, ppc32 can sanitize this. 44ifdef CONFIG_PPC64 45KASAN_SANITIZE_traps.o := n 46endif 47 48ifdef CONFIG_KASAN 49CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING 50CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING 51CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING 52endif 53 54KCSAN_SANITIZE_early_32.o := n 55KCSAN_SANITIZE_cputable.o := n 56KCSAN_SANITIZE_btext.o := n 57KCSAN_SANITIZE_paca.o := n 58KCSAN_SANITIZE_setup_64.o := n 59 60#ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET 61# Remove stack protector to avoid triggering unneeded stack canary 62# checks due to randomize_kstack_offset. 63CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong 64CFLAGS_syscall.o += -fno-stack-protector 65#endif 66 67obj-y := cputable.o syscalls.o switch.o \ 68 irq.o align.o signal_$(BITS).o pmc.o vdso.o \ 69 process.o systbl.o idle.o \ 70 signal.o sysfs.o cacheinfo.o time.o \ 71 prom.o traps.o setup-common.o \ 72 udbg.o misc.o io.o misc_$(BITS).o \ 73 of_platform.o prom_parse.o firmware.o \ 74 hw_breakpoint_constraints.o interrupt.o \ 75 kdebugfs.o stacktrace.o syscall.o 76obj-y += ptrace/ 77obj-$(CONFIG_PPC64) += setup_64.o irq_64.o\ 78 paca.o nvram_64.o note.o 79obj-$(CONFIG_PPC32) += sys_ppc32.o 80obj-$(CONFIG_COMPAT) += sys_ppc32.o signal_32.o 81obj-$(CONFIG_VDSO32) += vdso32_wrapper.o 82obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o 83obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o 84obj-$(CONFIG_PPC_DAWR) += dawr.o 85obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o 86obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o 87obj-$(CONFIG_PPC_BOOK3S_64) += dexcr.o 88obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o 89obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_64e.o 90obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o 91obj-$(CONFIG_PPC64) += vdso64_wrapper.o 92obj-$(CONFIG_ALTIVEC) += vecemu.o 93obj-$(CONFIG_PPC_BOOK3S_IDLE) += idle_book3s.o 94procfs-y := proc_powerpc.o 95obj-$(CONFIG_PROC_FS) += $(procfs-y) 96rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o 97obj-$(CONFIG_PPC_RTAS) += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y) 98obj-$(CONFIG_PPC_RTAS_DAEMON) += rtasd.o 99obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o 100obj-$(CONFIG_RTAS_PROC) += rtas-proc.o 101obj-$(CONFIG_PPC_DT_CPU_FTRS) += dt_cpu_ftrs.o 102obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_cache.o \ 103 eeh_driver.o eeh_event.o eeh_sysfs.o 104obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o 105obj-$(CONFIG_CRASH_DUMP) += crash_dump.o 106obj-$(CONFIG_FA_DUMP) += fadump.o 107obj-$(CONFIG_PRESERVE_FA_DUMP) += fadump.o 108obj-$(CONFIG_PPC_85xx) += idle_85xx.o 109obj-$(CONFIG_PPC_BOOK3S_32) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o 110obj-$(CONFIG_TAU) += tau_6xx.o 111obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o 112ifdef CONFIG_PPC_85xx 113obj-$(CONFIG_HIBERNATION) += swsusp_85xx.o 114else 115obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o 116endif 117obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o 118obj-$(CONFIG_MODULES) += module.o module_$(BITS).o 119obj-$(CONFIG_44x) += cpu_setup_44x.o 120obj-$(CONFIG_PPC_E500) += cpu_setup_e500.o 121obj-$(CONFIG_PPC_DOORBELL) += dbell.o 122obj-$(CONFIG_JUMP_LABEL) += jump_label.o 123 124obj-$(CONFIG_PPC64) += head_64.o 125obj-$(CONFIG_PPC_BOOK3S_32) += head_book3s_32.o 126obj-$(CONFIG_40x) += head_40x.o 127obj-$(CONFIG_44x) += head_44x.o 128obj-$(CONFIG_PPC_8xx) += head_8xx.o 129obj-$(CONFIG_PPC_85xx) += head_85xx.o 130extra-y += vmlinux.lds 131 132obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o 133 134obj-$(CONFIG_PPC32) += entry_32.o setup_32.o early_32.o static_call.o 135obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o 136obj-$(CONFIG_KGDB) += kgdb.o 137obj-$(CONFIG_BOOTX_TEXT) += btext.o 138obj-$(CONFIG_SMP) += smp.o 139obj-$(CONFIG_KPROBES) += kprobes.o 140obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o 141obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o 142obj-$(CONFIG_UPROBES) += uprobes.o 143obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o 144obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o 145obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o 146 147pci64-$(CONFIG_PPC64) += pci_dn.o pci-hotplug.o isa-bridge.o 148obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \ 149 pci-common.o pci_of_scan.o 150obj-$(CONFIG_PCI_MSI) += msi.o 151 152obj-$(CONFIG_AUDIT) += audit.o 153obj64-$(CONFIG_AUDIT) += compat_audit.o 154 155obj-$(CONFIG_PPC_IO_WORKAROUNDS) += io-workarounds.o 156 157obj-y += trace/ 158 159ifneq ($(CONFIG_PPC_INDIRECT_PIO),y) 160obj-y += iomap.o 161endif 162 163obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o 164 165ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)(CONFIG_PPC_BOOK3S),) 166obj-y += ppc_save_regs.o 167endif 168 169obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o 170obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o 171ifneq ($(CONFIG_PPC_POWERNV)$(CONFIG_PPC_SVM),) 172obj-y += ucall.o 173endif 174 175obj-$(CONFIG_PPC_SECURE_BOOT) += secure_boot.o ima_arch.o secvar-ops.o 176obj-$(CONFIG_PPC_SECVAR_SYSFS) += secvar-sysfs.o 177 178# Disable GCOV, KCOV & sanitizers in odd or sensitive code 179GCOV_PROFILE_prom_init.o := n 180KCOV_INSTRUMENT_prom_init.o := n 181KCSAN_SANITIZE_prom_init.o := n 182UBSAN_SANITIZE_prom_init.o := n 183GCOV_PROFILE_kprobes.o := n 184KCOV_INSTRUMENT_kprobes.o := n 185KCSAN_SANITIZE_kprobes.o := n 186UBSAN_SANITIZE_kprobes.o := n 187GCOV_PROFILE_kprobes-ftrace.o := n 188KCOV_INSTRUMENT_kprobes-ftrace.o := n 189KCSAN_SANITIZE_kprobes-ftrace.o := n 190UBSAN_SANITIZE_kprobes-ftrace.o := n 191UBSAN_SANITIZE_vdso.o := n 192 193# Necessary for booting with kcov enabled on book3e machines 194KCOV_INSTRUMENT_cputable.o := n 195KCOV_INSTRUMENT_setup_64.o := n 196KCOV_INSTRUMENT_paca.o := n 197 198CFLAGS_setup_64.o += -fno-stack-protector 199CFLAGS_paca.o += -fno-stack-protector 200 201obj-$(CONFIG_PPC_FPU) += fpu.o 202obj-$(CONFIG_ALTIVEC) += vector.o 203 204obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o 205obj64-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_entry_64.o 206extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init_check 207 208obj-$(CONFIG_PPC64) += $(obj64-y) 209obj-$(CONFIG_PPC32) += $(obj32-y) 210 211quiet_cmd_prom_init_check = PROMCHK $@ 212 cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@ 213 214$(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE 215 $(call if_changed,prom_init_check) 216targets += prom_init_check 217 218clean-files := vmlinux.lds 219 220# Force dependency (incbin is bad) 221$(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg 222$(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg 223 224# for cleaning 225subdir- += vdso 226