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 = $(CC_FLAGS_FTRACE) 31endif 32 33KASAN_SANITIZE_early_32.o := n 34KASAN_SANITIZE_cputable.o := n 35KASAN_SANITIZE_prom_init.o := n 36KASAN_SANITIZE_btext.o := n 37KASAN_SANITIZE_paca.o := n 38KASAN_SANITIZE_setup_64.o := n 39KASAN_SANITIZE_mce.o := n 40KASAN_SANITIZE_mce_power.o := n 41KASAN_SANITIZE_udbg.o := n 42KASAN_SANITIZE_udbg_16550.o := n 43 44# we have to be particularly careful in ppc64 to exclude code that 45# runs with translations off, as we cannot access the shadow with 46# translations off. However, ppc32 can sanitize this. 47ifdef CONFIG_PPC64 48KASAN_SANITIZE_traps.o := n 49endif 50 51ifdef CONFIG_KASAN 52CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING 53CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING 54CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING 55endif 56 57KCSAN_SANITIZE_early_32.o := n 58KCSAN_SANITIZE_early_64.o := n 59KCSAN_SANITIZE_cputable.o := n 60KCSAN_SANITIZE_btext.o := n 61KCSAN_SANITIZE_paca.o := n 62KCSAN_SANITIZE_setup_64.o := n 63 64#ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET 65# Remove stack protector to avoid triggering unneeded stack canary 66# checks due to randomize_kstack_offset. 67CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong 68CFLAGS_syscall.o += -fno-stack-protector 69#endif 70 71obj-y := cputable.o syscalls.o \ 72 irq.o align.o signal_$(BITS).o pmc.o vdso.o \ 73 process.o systbl.o idle.o \ 74 signal.o sysfs.o cacheinfo.o time.o \ 75 prom.o traps.o setup-common.o \ 76 udbg.o misc.o io.o misc_$(BITS).o \ 77 of_platform.o prom_parse.o firmware.o \ 78 hw_breakpoint_constraints.o interrupt.o \ 79 kdebugfs.o stacktrace.o syscall.o 80obj-y += ptrace/ 81obj-$(CONFIG_PPC64) += setup_64.o irq_64.o\ 82 paca.o nvram_64.o note.o 83obj-$(CONFIG_PPC32) += sys_ppc32.o 84obj-$(CONFIG_COMPAT) += sys_ppc32.o signal_32.o 85obj-$(CONFIG_VDSO32) += vdso32_wrapper.o 86obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o 87obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o 88obj-$(CONFIG_PPC_DAWR) += dawr.o 89obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o 90obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o 91obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o 92obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_64e.o 93obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o 94obj-$(CONFIG_PPC64) += vdso64_wrapper.o 95obj-$(CONFIG_ALTIVEC) += vecemu.o 96obj-$(CONFIG_PPC_BOOK3S_IDLE) += idle_book3s.o 97procfs-y := proc_powerpc.o 98obj-$(CONFIG_PROC_FS) += $(procfs-y) 99rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o 100obj-$(CONFIG_PPC_RTAS) += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y) 101obj-$(CONFIG_PPC_RTAS_DAEMON) += rtasd.o 102obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o 103obj-$(CONFIG_RTAS_PROC) += rtas-proc.o 104obj-$(CONFIG_PPC_DT_CPU_FTRS) += dt_cpu_ftrs.o 105obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_cache.o \ 106 eeh_driver.o eeh_event.o eeh_sysfs.o 107obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o 108obj-$(CONFIG_CRASH_DUMP) += crash_dump.o 109obj-$(CONFIG_FA_DUMP) += fadump.o 110obj-$(CONFIG_PRESERVE_FA_DUMP) += fadump.o 111obj-$(CONFIG_PPC_85xx) += idle_85xx.o 112obj-$(CONFIG_PPC_BOOK3S_32) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o 113obj-$(CONFIG_TAU) += tau_6xx.o 114obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o 115ifdef CONFIG_PPC_85xx 116obj-$(CONFIG_HIBERNATION) += swsusp_85xx.o 117else 118obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o 119endif 120obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o 121obj-$(CONFIG_MODULES) += module.o module_$(BITS).o 122obj-$(CONFIG_44x) += cpu_setup_44x.o 123obj-$(CONFIG_PPC_E500) += cpu_setup_e500.o 124obj-$(CONFIG_PPC_DOORBELL) += dbell.o 125obj-$(CONFIG_JUMP_LABEL) += jump_label.o 126 127obj-$(CONFIG_PPC64) += head_64.o 128obj-$(CONFIG_PPC_BOOK3S_32) += head_book3s_32.o 129obj-$(CONFIG_40x) += head_40x.o 130obj-$(CONFIG_44x) += head_44x.o 131obj-$(CONFIG_PPC_8xx) += head_8xx.o 132obj-$(CONFIG_PPC_85xx) += head_85xx.o 133extra-y += vmlinux.lds 134 135obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o 136 137obj-$(CONFIG_PPC32) += entry_32.o setup_32.o early_32.o static_call.o 138obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o 139obj-$(CONFIG_KGDB) += kgdb.o 140obj-$(CONFIG_BOOTX_TEXT) += btext.o 141obj-$(CONFIG_SMP) += smp.o 142obj-$(CONFIG_KPROBES) += kprobes.o 143obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o 144obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o 145obj-$(CONFIG_UPROBES) += uprobes.o 146obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o 147obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o 148obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o 149 150pci64-$(CONFIG_PPC64) += pci_dn.o pci-hotplug.o isa-bridge.o 151obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \ 152 pci-common.o pci_of_scan.o 153obj-$(CONFIG_PCI_MSI) += msi.o 154 155obj-$(CONFIG_AUDIT) += audit.o 156obj64-$(CONFIG_AUDIT) += compat_audit.o 157 158obj-$(CONFIG_PPC_IO_WORKAROUNDS) += io-workarounds.o 159 160obj-y += trace/ 161 162ifneq ($(CONFIG_PPC_INDIRECT_PIO),y) 163obj-y += iomap.o 164endif 165 166obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o 167 168obj-$(CONFIG_PPC64) += $(obj64-y) 169obj-$(CONFIG_PPC32) += $(obj32-y) 170 171ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)(CONFIG_PPC_BOOK3S),) 172obj-y += ppc_save_regs.o 173endif 174 175obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o 176obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o 177ifneq ($(CONFIG_PPC_POWERNV)$(CONFIG_PPC_SVM),) 178obj-y += ucall.o 179endif 180 181obj-$(CONFIG_PPC_SECURE_BOOT) += secure_boot.o ima_arch.o secvar-ops.o 182obj-$(CONFIG_PPC_SECVAR_SYSFS) += secvar-sysfs.o 183 184# Disable GCOV, KCOV & sanitizers in odd or sensitive code 185GCOV_PROFILE_prom_init.o := n 186KCOV_INSTRUMENT_prom_init.o := n 187KCSAN_SANITIZE_prom_init.o := n 188UBSAN_SANITIZE_prom_init.o := n 189GCOV_PROFILE_kprobes.o := n 190KCOV_INSTRUMENT_kprobes.o := n 191KCSAN_SANITIZE_kprobes.o := n 192UBSAN_SANITIZE_kprobes.o := n 193GCOV_PROFILE_kprobes-ftrace.o := n 194KCOV_INSTRUMENT_kprobes-ftrace.o := n 195KCSAN_SANITIZE_kprobes-ftrace.o := n 196UBSAN_SANITIZE_kprobes-ftrace.o := n 197GCOV_PROFILE_syscall_64.o := n 198KCOV_INSTRUMENT_syscall_64.o := n 199UBSAN_SANITIZE_syscall_64.o := n 200UBSAN_SANITIZE_vdso.o := n 201 202# Necessary for booting with kcov enabled on book3e machines 203KCOV_INSTRUMENT_cputable.o := n 204KCOV_INSTRUMENT_setup_64.o := n 205KCOV_INSTRUMENT_paca.o := n 206 207CFLAGS_setup_64.o += -fno-stack-protector 208CFLAGS_paca.o += -fno-stack-protector 209 210obj-$(CONFIG_PPC_FPU) += fpu.o 211obj-$(CONFIG_ALTIVEC) += vector.o 212obj-$(CONFIG_PPC64) += entry_64.o 213obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o 214 215extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init_check 216 217quiet_cmd_prom_init_check = PROMCHK $@ 218 cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@ 219 220$(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE 221 $(call if_changed,prom_init_check) 222targets += prom_init_check 223 224clean-files := vmlinux.lds 225 226# Force dependency (incbin is bad) 227$(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg 228$(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg 229 230# for cleaning 231subdir- += vdso 232