kernel/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # Makefile for the linux kernel.
   4 #
   5
   6 obj-y     = fork.o exec_domain.o panic.o \
   7             cpu.o exit.o softirq.o resource.o \
   8             sysctl.o capability.o ptrace.o user.o \
   9             signal.o sys.o umh.o workqueue.o pid.o task_work.o \
  10             extable.o params.o \
  11             kthread.o sys_ni.o nsproxy.o \
  12             notifier.o ksysfs.o cred.o reboot.o \
  13             async.o range.o smpboot.o ucount.o regset.o ksyms_common.o
  14
  15 obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o
  16 obj-$(CONFIG_MULTIUSER) += groups.o
  17 obj-$(CONFIG_VHOST_TASK) += vhost_task.o
  18
  19 ifdef CONFIG_FUNCTION_TRACER
  20 # Do not trace internal ftrace files
  21 CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE)
  22 endif
  23
  24 # Prevents flicker of uninteresting __do_softirq()/__local_bh_disable_ip()
  25 # in coverage traces.
  26 KCOV_INSTRUMENT_softirq.o := n
  27 # Avoid KCSAN instrumentation in softirq ("No shared variables, all the data
  28 # are CPU local" => assume no data races), to reduce overhead in interrupts.
  29 KCSAN_SANITIZE_softirq.o = n
  30 # These are called from save_stack_trace() on slub debug path,
  31 # and produce insane amounts of uninteresting coverage.
  32 KCOV_INSTRUMENT_extable.o := n
  33 KCOV_INSTRUMENT_stacktrace.o := n
  34 # Don't self-instrument.
  35 KCOV_INSTRUMENT_kcov.o := n
  36 # If sanitizers detect any issues in kcov, it may lead to recursion
  37 # via printk, etc.
  38 KASAN_SANITIZE_kcov.o := n
  39 KCSAN_SANITIZE_kcov.o := n
  40 UBSAN_SANITIZE_kcov.o := n
  41 KMSAN_SANITIZE_kcov.o := n
  42 CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack) -fno-stack-protector
  43
  44 obj-y += sched/
  45 obj-y += locking/
  46 obj-y += power/
  47 obj-y += printk/
  48 obj-y += irq/
  49 obj-y += rcu/
  50 obj-y += livepatch/
  51 obj-y += dma/
  52 obj-y += entry/
  53 obj-$(CONFIG_MODULES) += module/
  54
  55 obj-$(CONFIG_KCMP) += kcmp.o
  56 obj-$(CONFIG_FREEZER) += freezer.o
  57 obj-$(CONFIG_PROFILING) += profile.o
  58 obj-$(CONFIG_STACKTRACE) += stacktrace.o
  59 obj-y += time/
  60 obj-$(CONFIG_FUTEX) += futex/
  61 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
  62 obj-$(CONFIG_SMP) += smp.o
  63 ifneq ($(CONFIG_SMP),y)
  64 obj-y += up.o
  65 endif
  66 obj-$(CONFIG_UID16) += uid16.o
  67 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_signature.o
  68 obj-$(CONFIG_KALLSYMS) += kallsyms.o
  69 obj-$(CONFIG_KALLSYMS_SELFTEST) += kallsyms_selftest.o
  70 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
  71 obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o elfcorehdr.o
  72 obj-$(CONFIG_CRASH_RESERVE) += crash_reserve.o
  73 obj-$(CONFIG_KEXEC_CORE) += kexec_core.o
  74 obj-$(CONFIG_CRASH_DUMP) += crash_core.o
  75 obj-$(CONFIG_KEXEC) += kexec.o
  76 obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
  77 obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o
  78 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
  79 obj-$(CONFIG_COMPAT) += compat.o
  80 obj-$(CONFIG_CGROUPS) += cgroup/
  81 obj-$(CONFIG_UTS_NS) += utsname.o
  82 obj-$(CONFIG_USER_NS) += user_namespace.o
  83 obj-$(CONFIG_PID_NS) += pid_namespace.o
  84 obj-$(CONFIG_IKCONFIG) += configs.o
  85 obj-$(CONFIG_IKHEADERS) += kheaders.o
  86 obj-$(CONFIG_SMP) += stop_machine.o
  87 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
  88 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
  89 obj-$(CONFIG_GCOV_KERNEL) += gcov/
  90 obj-$(CONFIG_KCOV) += kcov.o
  91 obj-$(CONFIG_KPROBES) += kprobes.o
  92 obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o
  93 obj-$(CONFIG_KGDB) += debug/
  94 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
  95 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
  96 obj-$(CONFIG_HARDLOCKUP_DETECTOR_BUDDY) += watchdog_buddy.o
  97 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_perf.o
  98 obj-$(CONFIG_SECCOMP) += seccomp.o
  99 obj-$(CONFIG_RELAY) += relay.o
 100 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
 101 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
 102 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
 103 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
 104 obj-$(CONFIG_LATENCYTOP) += latencytop.o
 105 obj-$(CONFIG_FUNCTION_TRACER) += trace/
 106 obj-$(CONFIG_TRACING) += trace/
 107 obj-$(CONFIG_TRACE_CLOCK) += trace/
 108 obj-$(CONFIG_RING_BUFFER) += trace/
 109 obj-$(CONFIG_TRACEPOINTS) += trace/
 110 obj-$(CONFIG_RETHOOK) += trace/
 111 obj-$(CONFIG_IRQ_WORK) += irq_work.o
 112 obj-$(CONFIG_CPU_PM) += cpu_pm.o
 113 obj-$(CONFIG_BPF) += bpf/
 114 obj-$(CONFIG_KCSAN) += kcsan/
 115 obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
 116 obj-$(CONFIG_HAVE_STATIC_CALL) += static_call.o
 117 obj-$(CONFIG_HAVE_STATIC_CALL_INLINE) += static_call_inline.o
 118 obj-$(CONFIG_CFI_CLANG) += cfi.o
 119
 120 obj-$(CONFIG_PERF_EVENTS) += events/
 121
 122 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
 123 obj-$(CONFIG_PADATA) += padata.o
 124 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
 125 obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
 126 obj-$(CONFIG_TORTURE_TEST) += torture.o
 127
 128 obj-$(CONFIG_HAS_IOMEM) += iomem.o
 129 obj-$(CONFIG_RSEQ) += rseq.o
 130 obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o
 131
 132 obj-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_kunit.o
 133 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o
 134
 135 CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUGIN)
 136 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak.o
 137 KASAN_SANITIZE_stackleak.o := n
 138 KCSAN_SANITIZE_stackleak.o := n
 139 KCOV_INSTRUMENT_stackleak.o := n
 140
 141 obj-$(CONFIG_SCF_TORTURE_TEST) += scftorture.o
 142
 143 $(obj)/configs.o: $(obj)/config_data.gz
 144
 145 targets += config_data config_data.gz
 146 $(obj)/config_data.gz: $(obj)/config_data FORCE
 147         $(call if_changed,gzip)
 148
 149 filechk_cat = cat $<
 150
 151 $(obj)/config_data: $(KCONFIG_CONFIG) FORCE
 152         $(call filechk,cat)
 153
 154 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
 155
 156 quiet_cmd_genikh = CHK     $(obj)/kheaders_data.tar.xz
 157       cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
 158 $(obj)/kheaders_data.tar.xz: FORCE
 159         $(call cmd,genikh)
 160
 161 clean-files := kheaders_data.tar.xz kheaders.md5