arch/powerpc/kernel/Makefile

   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