OSCL-LXR

0001 # SPDX-License-Identifier: GPL-2.0
0002 #
0003 # Makefile for the linux kernel.
0004 #
0005
0006 ifdef CONFIG_PPC64
0007 CFLAGS_prom_init.o      += $(NO_MINIMAL_TOC)
0008 endif
0009 ifdef CONFIG_PPC32
0010 CFLAGS_prom_init.o      += -fPIC
0011 CFLAGS_btext.o          += -fPIC
0012 endif
0013
0014 CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
0015 CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
0016 CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
0017 CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
0018 CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
0019
0020 CFLAGS_prom_init.o += -fno-stack-protector
0021 CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING
0022 CFLAGS_prom_init.o += -ffreestanding
0023 CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized)
0024
0025 ifdef CONFIG_FUNCTION_TRACER
0026 # Do not trace early boot code
0027 CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE)
0028 CFLAGS_REMOVE_prom_init.o = $(CC_FLAGS_FTRACE)
0029 CFLAGS_REMOVE_btext.o = $(CC_FLAGS_FTRACE)
0030 CFLAGS_REMOVE_prom.o = $(CC_FLAGS_FTRACE)
0031 endif
0032
0033 KASAN_SANITIZE_early_32.o := n
0034 KASAN_SANITIZE_cputable.o := n
0035 KASAN_SANITIZE_prom_init.o := n
0036 KASAN_SANITIZE_btext.o := n
0037 KASAN_SANITIZE_paca.o := n
0038 KASAN_SANITIZE_setup_64.o := n
0039 KASAN_SANITIZE_mce.o := n
0040 KASAN_SANITIZE_mce_power.o := n
0041 KASAN_SANITIZE_udbg.o := n
0042 KASAN_SANITIZE_udbg_16550.o := n
0043
0044 # we have to be particularly careful in ppc64 to exclude code that
0045 # runs with translations off, as we cannot access the shadow with
0046 # translations off. However, ppc32 can sanitize this.
0047 ifdef CONFIG_PPC64
0048 KASAN_SANITIZE_traps.o := n
0049 endif
0050
0051 ifdef CONFIG_KASAN
0052 CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING
0053 CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING
0054 CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING
0055 endif
0056
0057 #ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET
0058 # Remove stack protector to avoid triggering unneeded stack canary
0059 # checks due to randomize_kstack_offset.
0060 CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong
0061 CFLAGS_syscall.o += -fno-stack-protector
0062 #endif
0063
0064 obj-y                           := cputable.o syscalls.o \
0065                                    irq.o align.o signal_$(BITS).o pmc.o vdso.o \
0066                                    process.o systbl.o idle.o \
0067                                    signal.o sysfs.o cacheinfo.o time.o \
0068                                    prom.o traps.o setup-common.o \
0069                                    udbg.o misc.o io.o misc_$(BITS).o \
0070                                    of_platform.o prom_parse.o firmware.o \
0071                                    hw_breakpoint_constraints.o interrupt.o \
0072                                    kdebugfs.o stacktrace.o syscall.o
0073 obj-y                           += ptrace/
0074 obj-$(CONFIG_PPC64)             += setup_64.o irq_64.o\
0075                                    paca.o nvram_64.o note.o
0076 obj-$(CONFIG_COMPAT)            += sys_ppc32.o signal_32.o
0077 obj-$(CONFIG_VDSO32)            += vdso32_wrapper.o
0078 obj-$(CONFIG_PPC_WATCHDOG)      += watchdog.o
0079 obj-$(CONFIG_HAVE_HW_BREAKPOINT)        += hw_breakpoint.o
0080 obj-$(CONFIG_PPC_DAWR)          += dawr.o
0081 obj-$(CONFIG_PPC_BOOK3S_64)     += cpu_setup_ppc970.o cpu_setup_pa6t.o
0082 obj-$(CONFIG_PPC_BOOK3S_64)     += cpu_setup_power.o
0083 obj-$(CONFIG_PPC_BOOK3S_64)     += mce.o mce_power.o
0084 obj-$(CONFIG_PPC_BOOK3E_64)     += exceptions-64e.o idle_book3e.o
0085 obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o
0086 obj-$(CONFIG_PPC64)             += vdso64_wrapper.o
0087 obj-$(CONFIG_ALTIVEC)           += vecemu.o
0088 obj-$(CONFIG_PPC_BOOK3S_IDLE)   += idle_book3s.o
0089 procfs-y                        := proc_powerpc.o
0090 obj-$(CONFIG_PROC_FS)           += $(procfs-y)
0091 rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI)   := rtas_pci.o
0092 obj-$(CONFIG_PPC_RTAS)          += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y)
0093 obj-$(CONFIG_PPC_RTAS_DAEMON)   += rtasd.o
0094 obj-$(CONFIG_RTAS_FLASH)        += rtas_flash.o
0095 obj-$(CONFIG_RTAS_PROC)         += rtas-proc.o
0096 obj-$(CONFIG_PPC_DT_CPU_FTRS)   += dt_cpu_ftrs.o
0097 obj-$(CONFIG_EEH)              += eeh.o eeh_pe.o eeh_cache.o \
0098                                   eeh_driver.o eeh_event.o eeh_sysfs.o
0099 obj-$(CONFIG_GENERIC_TBSYNC)    += smp-tbsync.o
0100 obj-$(CONFIG_CRASH_DUMP)        += crash_dump.o
0101 obj-$(CONFIG_FA_DUMP)           += fadump.o
0102 obj-$(CONFIG_PRESERVE_FA_DUMP)  += fadump.o
0103 ifdef CONFIG_PPC32
0104 obj-$(CONFIG_E500)              += idle_e500.o
0105 endif
0106 obj-$(CONFIG_PPC_BOOK3S_32)     += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
0107 obj-$(CONFIG_TAU)               += tau_6xx.o
0108 obj-$(CONFIG_HIBERNATION)       += swsusp.o suspend.o
0109 ifdef CONFIG_FSL_BOOKE
0110 obj-$(CONFIG_HIBERNATION)       += swsusp_booke.o
0111 else
0112 obj-$(CONFIG_HIBERNATION)       += swsusp_$(BITS).o
0113 endif
0114 obj64-$(CONFIG_HIBERNATION)     += swsusp_asm64.o
0115 obj-$(CONFIG_MODULES)           += module.o module_$(BITS).o
0116 obj-$(CONFIG_44x)               += cpu_setup_44x.o
0117 obj-$(CONFIG_PPC_FSL_BOOK3E)    += cpu_setup_fsl_booke.o
0118 obj-$(CONFIG_PPC_DOORBELL)      += dbell.o
0119 obj-$(CONFIG_JUMP_LABEL)        += jump_label.o
0120
0121 extra-$(CONFIG_PPC64)           := head_64.o
0122 extra-$(CONFIG_PPC_BOOK3S_32)   := head_book3s_32.o
0123 extra-$(CONFIG_40x)             := head_40x.o
0124 extra-$(CONFIG_44x)             := head_44x.o
0125 extra-$(CONFIG_FSL_BOOKE)       := head_fsl_booke.o
0126 extra-$(CONFIG_PPC_8xx)         := head_8xx.o
0127 extra-y                         += vmlinux.lds
0128
0129 obj-$(CONFIG_RELOCATABLE)       += reloc_$(BITS).o
0130
0131 obj-$(CONFIG_PPC32)             += entry_32.o setup_32.o early_32.o static_call.o
0132 obj-$(CONFIG_PPC64)             += dma-iommu.o iommu.o
0133 obj-$(CONFIG_KGDB)              += kgdb.o
0134 obj-$(CONFIG_BOOTX_TEXT)        += btext.o
0135 obj-$(CONFIG_SMP)               += smp.o
0136 obj-$(CONFIG_KPROBES)           += kprobes.o
0137 obj-$(CONFIG_OPTPROBES)         += optprobes.o optprobes_head.o
0138 obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o
0139 obj-$(CONFIG_UPROBES)           += uprobes.o
0140 obj-$(CONFIG_PPC_UDBG_16550)    += legacy_serial.o udbg_16550.o
0141 obj-$(CONFIG_SWIOTLB)           += dma-swiotlb.o
0142 obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o
0143
0144 pci64-$(CONFIG_PPC64)           += pci_dn.o pci-hotplug.o isa-bridge.o
0145 obj-$(CONFIG_PCI)               += pci_$(BITS).o $(pci64-y) \
0146                                    pci-common.o pci_of_scan.o
0147 obj-$(CONFIG_PCI_MSI)           += msi.o
0148
0149 obj-$(CONFIG_AUDIT)             += audit.o
0150 obj64-$(CONFIG_AUDIT)           += compat_audit.o
0151
0152 obj-$(CONFIG_PPC_IO_WORKAROUNDS)        += io-workarounds.o
0153
0154 obj-y                           += trace/
0155
0156 ifneq ($(CONFIG_PPC_INDIRECT_PIO),y)
0157 obj-y                           += iomap.o
0158 endif
0159
0160 obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM)   += tm.o
0161
0162 obj-$(CONFIG_PPC64)             += $(obj64-y)
0163 obj-$(CONFIG_PPC32)             += $(obj32-y)
0164
0165 ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)(CONFIG_PPC_BOOK3S),)
0166 obj-y                           += ppc_save_regs.o
0167 endif
0168
0169 obj-$(CONFIG_EPAPR_PARAVIRT)    += epapr_paravirt.o epapr_hcalls.o
0170 obj-$(CONFIG_KVM_GUEST)         += kvm.o kvm_emul.o
0171 ifneq ($(CONFIG_PPC_POWERNV)$(CONFIG_PPC_SVM),)
0172 obj-y                           += ucall.o
0173 endif
0174
0175 obj-$(CONFIG_PPC_SECURE_BOOT)   += secure_boot.o ima_arch.o secvar-ops.o
0176 obj-$(CONFIG_PPC_SECVAR_SYSFS)  += secvar-sysfs.o
0177
0178 # Disable GCOV, KCOV & sanitizers in odd or sensitive code
0179 GCOV_PROFILE_prom_init.o := n
0180 KCOV_INSTRUMENT_prom_init.o := n
0181 UBSAN_SANITIZE_prom_init.o := n
0182 GCOV_PROFILE_kprobes.o := n
0183 KCOV_INSTRUMENT_kprobes.o := n
0184 UBSAN_SANITIZE_kprobes.o := n
0185 GCOV_PROFILE_kprobes-ftrace.o := n
0186 KCOV_INSTRUMENT_kprobes-ftrace.o := n
0187 UBSAN_SANITIZE_kprobes-ftrace.o := n
0188 GCOV_PROFILE_syscall_64.o := n
0189 KCOV_INSTRUMENT_syscall_64.o := n
0190 UBSAN_SANITIZE_syscall_64.o := n
0191 UBSAN_SANITIZE_vdso.o := n
0192
0193 # Necessary for booting with kcov enabled on book3e machines
0194 KCOV_INSTRUMENT_cputable.o := n
0195 KCOV_INSTRUMENT_setup_64.o := n
0196 KCOV_INSTRUMENT_paca.o := n
0197
0198 CFLAGS_setup_64.o               += -fno-stack-protector
0199 CFLAGS_paca.o                   += -fno-stack-protector
0200
0201 extra-$(CONFIG_PPC_FPU)         += fpu.o
0202 extra-$(CONFIG_ALTIVEC)         += vector.o
0203 extra-$(CONFIG_PPC64)           += entry_64.o
0204 extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)  += prom_init.o
0205
0206 extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)  += prom_init_check
0207
0208 quiet_cmd_prom_init_check = PROMCHK $@
0209       cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@
0210
0211 $(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE
0212         $(call if_changed,prom_init_check)
0213 targets += prom_init_check
0214
0215 clean-files := vmlinux.lds
0216
0217 # Force dependency (incbin is bad)
0218 $(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg
0219 $(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg
0220
0221 # for cleaning
0222 subdir- += vdso