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