arch/arm64/kernel/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # Makefile for the linux kernel.
   4 #
   5
   6 CFLAGS_armv8_deprecated.o := -I$(src)
   7
   8 CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
   9 CFLAGS_REMOVE_insn.o = $(CC_FLAGS_FTRACE)
  10 CFLAGS_REMOVE_return_address.o = $(CC_FLAGS_FTRACE)
  11
  12 # Remove stack protector to avoid triggering unneeded stack canary
  13 # checks due to randomize_kstack_offset.
  14 CFLAGS_REMOVE_syscall.o  = -fstack-protector -fstack-protector-strong
  15 CFLAGS_syscall.o        += -fno-stack-protector
  16
  17 # When KASAN is enabled, a stack trace is recorded for every alloc/free, which
  18 # can significantly impact performance. Avoid instrumenting the stack trace
  19 # collection code to minimize this impact.
  20 KASAN_SANITIZE_stacktrace.o := n
  21
  22 # It's not safe to invoke KCOV when portions of the kernel environment aren't
  23 # available or are out-of-sync with HW state. Since `noinstr` doesn't always
  24 # inhibit KCOV instrumentation, disable it for the entire compilation unit.
  25 KCOV_INSTRUMENT_entry-common.o := n
  26 KCOV_INSTRUMENT_idle.o := n
  27
  28 # Object file lists.
  29 obj-y                   := debug-monitors.o entry.o irq.o fpsimd.o              \
  30                            entry-common.o entry-fpsimd.o process.o ptrace.o     \
  31                            setup.o signal.o sys.o stacktrace.o time.o traps.o   \
  32                            io.o vdso.o hyp-stub.o psci.o cpu_ops.o              \
  33                            return_address.o cpuinfo.o cpu_errata.o              \
  34                            cpufeature.o alternative.o cacheinfo.o               \
  35                            smp.o smp_spin_table.o topology.o smccc-call.o       \
  36                            syscall.o proton-pack.o idreg-override.o idle.o      \
  37                            patching.o
  38
  39 targets                 += efi-entry.o
  40
  41 OBJCOPYFLAGS := --prefix-symbols=__efistub_
  42 $(obj)/%.stub.o: $(obj)/%.o FORCE
  43         $(call if_changed,objcopy)
  44
  45 obj-$(CONFIG_COMPAT)                    += sys32.o signal32.o                   \
  46                                            sys_compat.o
  47 obj-$(CONFIG_COMPAT)                    += sigreturn32.o
  48 obj-$(CONFIG_KUSER_HELPERS)             += kuser32.o
  49 obj-$(CONFIG_FUNCTION_TRACER)           += ftrace.o entry-ftrace.o
  50 obj-$(CONFIG_MODULES)                   += module.o
  51 obj-$(CONFIG_ARM64_MODULE_PLTS)         += module-plts.o
  52 obj-$(CONFIG_PERF_EVENTS)               += perf_regs.o perf_callchain.o
  53 obj-$(CONFIG_HW_PERF_EVENTS)            += perf_event.o
  54 obj-$(CONFIG_HAVE_HW_BREAKPOINT)        += hw_breakpoint.o
  55 obj-$(CONFIG_CPU_PM)                    += sleep.o suspend.o
  56 obj-$(CONFIG_CPU_IDLE)                  += cpuidle.o
  57 obj-$(CONFIG_JUMP_LABEL)                += jump_label.o
  58 obj-$(CONFIG_KGDB)                      += kgdb.o
  59 obj-$(CONFIG_EFI)                       += efi.o efi-entry.stub.o               \
  60                                            efi-rt-wrapper.o
  61 obj-$(CONFIG_PCI)                       += pci.o
  62 obj-$(CONFIG_ARMV8_DEPRECATED)          += armv8_deprecated.o
  63 obj-$(CONFIG_ACPI)                      += acpi.o
  64 obj-$(CONFIG_ACPI_NUMA)                 += acpi_numa.o
  65 obj-$(CONFIG_ARM64_ACPI_PARKING_PROTOCOL)       += acpi_parking_protocol.o
  66 obj-$(CONFIG_PARAVIRT)                  += paravirt.o
  67 obj-$(CONFIG_RANDOMIZE_BASE)            += kaslr.o pi/
  68 obj-$(CONFIG_HIBERNATION)               += hibernate.o hibernate-asm.o
  69 obj-$(CONFIG_ELF_CORE)                  += elfcore.o
  70 obj-$(CONFIG_KEXEC_CORE)                += machine_kexec.o relocate_kernel.o    \
  71                                            cpu-reset.o
  72 obj-$(CONFIG_KEXEC_FILE)                += machine_kexec_file.o kexec_image.o
  73 obj-$(CONFIG_ARM64_RELOC_TEST)          += arm64-reloc-test.o
  74 arm64-reloc-test-y := reloc_test_core.o reloc_test_syms.o
  75 obj-$(CONFIG_CRASH_DUMP)                += crash_dump.o
  76 obj-$(CONFIG_CRASH_CORE)                += crash_core.o
  77 obj-$(CONFIG_ARM_SDE_INTERFACE)         += sdei.o
  78 obj-$(CONFIG_ARM64_PTR_AUTH)            += pointer_auth.o
  79 obj-$(CONFIG_ARM64_MTE)                 += mte.o
  80 obj-y                                   += vdso-wrap.o
  81 obj-$(CONFIG_COMPAT_VDSO)               += vdso32-wrap.o
  82
  83 # Force dependency (vdso*-wrap.S includes vdso.so through incbin)
  84 $(obj)/vdso-wrap.o: $(obj)/vdso/vdso.so
  85 $(obj)/vdso32-wrap.o: $(obj)/vdso32/vdso.so
  86
  87 obj-y                                   += probes/
  88 head-y                                  := head.o
  89 extra-y                                 += $(head-y) vmlinux.lds
  90
  91 ifeq ($(CONFIG_DEBUG_EFI),y)
  92 AFLAGS_head.o += -DVMLINUX_PATH="\"$(realpath $(objtree)/vmlinux)\""
  93 endif
  94
  95 # for cleaning
  96 subdir- += vdso vdso32