1# SPDX-License-Identifier: GPL-2.0 2# 3# Makefile for the linux kernel. 4# 5 6ifdef CONFIG_PPC64 7CFLAGS_prom_init.o += $(NO_MINIMAL_TOC) 8endif 9ifdef CONFIG_PPC32 10CFLAGS_prom_init.o += -fPIC 11CFLAGS_btext.o += -fPIC 12endif 13 14CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 15CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 16CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 17CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 18CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN) 19 20CFLAGS_prom_init.o += -fno-stack-protector 21CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING 22CFLAGS_prom_init.o += -ffreestanding 23CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized) 24 25ifdef CONFIG_FUNCTION_TRACER 26# Do not trace early boot code 27CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE) 28CFLAGS_REMOVE_prom_init.o = $(CC_FLAGS_FTRACE) 29CFLAGS_REMOVE_btext.o = $(CC_FLAGS_FTRACE) 30CFLAGS_REMOVE_prom.o = $(CC_FLAGS_FTRACE) 31endif 32 33KASAN_SANITIZE_early_32.o := n 34KASAN_SANITIZE_cputable.o := n 35KASAN_SANITIZE_prom_init.o := n 36KASAN_SANITIZE_btext.o := n 37KASAN_SANITIZE_paca.o := n 38KASAN_SANITIZE_setup_64.o := n 39KASAN_SANITIZE_mce.o := n 40KASAN_SANITIZE_mce_power.o := n 41KASAN_SANITIZE_udbg.o := n 42KASAN_SANITIZE_udbg_16550.o := n 43 44# we have to be particularly careful in ppc64 to exclude code that 45# runs with translations off, as we cannot access the shadow with 46# translations off. However, ppc32 can sanitize this. 47ifdef CONFIG_PPC64 48KASAN_SANITIZE_traps.o := n 49endif 50 51ifdef CONFIG_KASAN 52CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING 53CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING 54CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING 55endif 56 57#ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET 58# Remove stack protector to avoid triggering unneeded stack canary 59# checks due to randomize_kstack_offset. 60CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong 61CFLAGS_syscall.o += -fno-stack-protector 62#endif 63 64obj-y := cputable.o syscalls.o \ 65 irq.o align.o signal_$(BITS).o pmc.o vdso.o \ 66 process.o systbl.o idle.o \ 67 signal.o sysfs.o cacheinfo.o time.o \ 68 prom.o traps.o setup-common.o \ 69 udbg.o misc.o io.o misc_$(BITS).o \ 70 of_platform.o prom_parse.o firmware.o \ 71 hw_breakpoint_constraints.o interrupt.o \ 72 kdebugfs.o stacktrace.o syscall.o 73obj-y += ptrace/ 74obj-$(CONFIG_PPC64) += setup_64.o irq_64.o\ 75 paca.o nvram_64.o note.o 76obj-$(CONFIG_COMPAT) += sys_ppc32.o signal_32.o 77obj-$(CONFIG_VDSO32) += vdso32_wrapper.o 78obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o 79obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o 80obj-$(CONFIG_PPC_DAWR) += dawr.o 81obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o 82obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o 83obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o 84obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_book3e.o 85obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o 86obj-$(CONFIG_PPC64) += vdso64_wrapper.o 87obj-$(CONFIG_ALTIVEC) += vecemu.o 88obj-$(CONFIG_PPC_BOOK3S_IDLE) += idle_book3s.o 89procfs-y := proc_powerpc.o 90obj-$(CONFIG_PROC_FS) += $(procfs-y) 91rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o 92obj-$(CONFIG_PPC_RTAS) += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y) 93obj-$(CONFIG_PPC_RTAS_DAEMON) += rtasd.o 94obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o 95obj-$(CONFIG_RTAS_PROC) += rtas-proc.o 96obj-$(CONFIG_PPC_DT_CPU_FTRS) += dt_cpu_ftrs.o 97obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_cache.o \ 98 eeh_driver.o eeh_event.o eeh_sysfs.o 99obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o 100obj-$(CONFIG_CRASH_DUMP) += crash_dump.o 101obj-$(CONFIG_FA_DUMP) += fadump.o 102obj-$(CONFIG_PRESERVE_FA_DUMP) += fadump.o 103ifdef CONFIG_PPC32 104obj-$(CONFIG_E500) += idle_e500.o 105endif 106obj-$(CONFIG_PPC_BOOK3S_32) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o 107obj-$(CONFIG_TAU) += tau_6xx.o 108obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o 109ifdef CONFIG_FSL_BOOKE 110obj-$(CONFIG_HIBERNATION) += swsusp_booke.o 111else 112obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o 113endif 114obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o 115obj-$(CONFIG_MODULES) += module.o module_$(BITS).o 116obj-$(CONFIG_44x) += cpu_setup_44x.o 117obj-$(CONFIG_PPC_FSL_BOOK3E) += cpu_setup_fsl_booke.o 118obj-$(CONFIG_PPC_DOORBELL) += dbell.o 119obj-$(CONFIG_JUMP_LABEL) += jump_label.o 120 121extra-$(CONFIG_PPC64) := head_64.o 122extra-$(CONFIG_PPC_BOOK3S_32) := head_book3s_32.o 123extra-$(CONFIG_40x) := head_40x.o 124extra-$(CONFIG_44x) := head_44x.o 125extra-$(CONFIG_FSL_BOOKE) := head_fsl_booke.o 126extra-$(CONFIG_PPC_8xx) := head_8xx.o 127extra-y += vmlinux.lds 128 129obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o 130 131obj-$(CONFIG_PPC32) += entry_32.o setup_32.o early_32.o static_call.o 132obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o 133obj-$(CONFIG_KGDB) += kgdb.o 134obj-$(CONFIG_BOOTX_TEXT) += btext.o 135obj-$(CONFIG_SMP) += smp.o 136obj-$(CONFIG_KPROBES) += kprobes.o 137obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o 138obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o 139obj-$(CONFIG_UPROBES) += uprobes.o 140obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o 141obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o 142obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o 143 144pci64-$(CONFIG_PPC64) += pci_dn.o pci-hotplug.o isa-bridge.o 145obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \ 146 pci-common.o pci_of_scan.o 147obj-$(CONFIG_PCI_MSI) += msi.o 148 149obj-$(CONFIG_AUDIT) += audit.o 150obj64-$(CONFIG_AUDIT) += compat_audit.o 151 152obj-$(CONFIG_PPC_IO_WORKAROUNDS) += io-workarounds.o 153 154obj-y += trace/ 155 156ifneq ($(CONFIG_PPC_INDIRECT_PIO),y) 157obj-y += iomap.o 158endif 159 160obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o 161 162obj-$(CONFIG_PPC64) += $(obj64-y) 163obj-$(CONFIG_PPC32) += $(obj32-y) 164 165ifneq ($(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-$(CONFIG_PPC_SECVAR_SYSFS) += secvar-sysfs.o 177 178# Disable GCOV, KCOV & sanitizers in odd or sensitive code 179GCOV_PROFILE_prom_init.o := n 180KCOV_INSTRUMENT_prom_init.o := n 181UBSAN_SANITIZE_prom_init.o := n 182GCOV_PROFILE_kprobes.o := n 183KCOV_INSTRUMENT_kprobes.o := n 184UBSAN_SANITIZE_kprobes.o := n 185GCOV_PROFILE_kprobes-ftrace.o := n 186KCOV_INSTRUMENT_kprobes-ftrace.o := n 187UBSAN_SANITIZE_kprobes-ftrace.o := n 188GCOV_PROFILE_syscall_64.o := n 189KCOV_INSTRUMENT_syscall_64.o := n 190UBSAN_SANITIZE_syscall_64.o := n 191UBSAN_SANITIZE_vdso.o := n 192 193# Necessary for booting with kcov enabled on book3e machines 194KCOV_INSTRUMENT_cputable.o := n 195KCOV_INSTRUMENT_setup_64.o := n 196KCOV_INSTRUMENT_paca.o := n 197 198CFLAGS_setup_64.o += -fno-stack-protector 199CFLAGS_paca.o += -fno-stack-protector 200 201extra-$(CONFIG_PPC_FPU) += fpu.o 202extra-$(CONFIG_ALTIVEC) += vector.o 203extra-$(CONFIG_PPC64) += entry_64.o 204extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o 205 206extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init_check 207 208quiet_cmd_prom_init_check = PROMCHK $@ 209 cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@ 210 211$(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE 212 $(call if_changed,prom_init_check) 213targets += prom_init_check 214 215clean-files := vmlinux.lds 216 217# Force dependency (incbin is bad) 218$(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg 219$(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg 220 221# for cleaning 222subdir- += vdso 223