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