LXR linux/kernel/Makefile

   1# SPDX-License-Identifier: GPL-2.0
   2#
   3# Makefile for the linux kernel.
   4#
   5
   6obj-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
  14
  15obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o
  16obj-$(CONFIG_MODULES) += kmod.o
  17obj-$(CONFIG_MULTIUSER) += groups.o
  18
  19ifdef CONFIG_FUNCTION_TRACER
  20# Do not trace internal ftrace files
  21CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE)
  22endif
  23
  24# Prevents flicker of uninteresting __do_softirq()/__local_bh_disable_ip()
  25# in coverage traces.
  26KCOV_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.
  29KCSAN_SANITIZE_softirq.o = n
  30# These are called from save_stack_trace() on slub debug path,
  31# and produce insane amounts of uninteresting coverage.
  32KCOV_INSTRUMENT_module.o := n
  33KCOV_INSTRUMENT_extable.o := n
  34KCOV_INSTRUMENT_stacktrace.o := n
  35# Don't self-instrument.
  36KCOV_INSTRUMENT_kcov.o := n
  37# If sanitizers detect any issues in kcov, it may lead to recursion
  38# via printk, etc.
  39KASAN_SANITIZE_kcov.o := n
  40KCSAN_SANITIZE_kcov.o := n
  41UBSAN_SANITIZE_kcov.o := n
  42CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack) -fno-stack-protector
  43
  44# Don't instrument error handlers
  45CFLAGS_REMOVE_cfi.o := $(CC_FLAGS_CFI)
  46
  47obj-y += sched/
  48obj-y += locking/
  49obj-y += power/
  50obj-y += printk/
  51obj-y += irq/
  52obj-y += rcu/
  53obj-y += livepatch/
  54obj-y += dma/
  55obj-y += entry/
  56
  57obj-$(CONFIG_KCMP) += kcmp.o
  58obj-$(CONFIG_FREEZER) += freezer.o
  59obj-$(CONFIG_PROFILING) += profile.o
  60obj-$(CONFIG_STACKTRACE) += stacktrace.o
  61obj-y += time/
  62obj-$(CONFIG_FUTEX) += futex.o
  63obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
  64obj-$(CONFIG_SMP) += smp.o
  65ifneq ($(CONFIG_SMP),y)
  66obj-y += up.o
  67endif
  68obj-$(CONFIG_UID16) += uid16.o
  69obj-$(CONFIG_MODULES) += module.o
  70obj-$(CONFIG_MODULE_SIG) += module_signing.o
  71obj-$(CONFIG_MODULE_SIG_FORMAT) += module_signature.o
  72obj-$(CONFIG_KALLSYMS) += kallsyms.o
  73obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
  74obj-$(CONFIG_CRASH_CORE) += crash_core.o
  75obj-$(CONFIG_KEXEC_CORE) += kexec_core.o
  76obj-$(CONFIG_KEXEC) += kexec.o
  77obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
  78obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o
  79obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
  80obj-$(CONFIG_COMPAT) += compat.o
  81obj-$(CONFIG_CGROUPS) += cgroup/
  82obj-$(CONFIG_UTS_NS) += utsname.o
  83obj-$(CONFIG_USER_NS) += user_namespace.o
  84obj-$(CONFIG_PID_NS) += pid_namespace.o
  85obj-$(CONFIG_IKCONFIG) += configs.o
  86obj-$(CONFIG_IKHEADERS) += kheaders.o
  87obj-$(CONFIG_SMP) += stop_machine.o
  88obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
  89obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
  90obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
  91obj-$(CONFIG_GCOV_KERNEL) += gcov/
  92obj-$(CONFIG_KCOV) += kcov.o
  93obj-$(CONFIG_KPROBES) += kprobes.o
  94obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o
  95obj-$(CONFIG_KGDB) += debug/
  96obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
  97obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
  98obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_hld.o
  99obj-$(CONFIG_SECCOMP) += seccomp.o
 100obj-$(CONFIG_RELAY) += relay.o
 101obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
 102obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
 103obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
 104obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
 105obj-$(CONFIG_LATENCYTOP) += latencytop.o
 106obj-$(CONFIG_FUNCTION_TRACER) += trace/
 107obj-$(CONFIG_TRACING) += trace/
 108obj-$(CONFIG_TRACE_CLOCK) += trace/
 109obj-$(CONFIG_RING_BUFFER) += trace/
 110obj-$(CONFIG_TRACEPOINTS) += trace/
 111obj-$(CONFIG_IRQ_WORK) += irq_work.o
 112obj-$(CONFIG_CPU_PM) += cpu_pm.o
 113obj-$(CONFIG_BPF) += bpf/
 114obj-$(CONFIG_KCSAN) += kcsan/
 115obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
 116obj-$(CONFIG_HAVE_STATIC_CALL_INLINE) += static_call.o
 117obj-$(CONFIG_CFI_CLANG) += cfi.o
 118
 119obj-$(CONFIG_PERF_EVENTS) += events/
 120
 121obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
 122obj-$(CONFIG_PADATA) += padata.o
 123obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
 124obj-$(CONFIG_JUMP_LABEL) += jump_label.o
 125obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
 126obj-$(CONFIG_TORTURE_TEST) += torture.o
 127
 128obj-$(CONFIG_HAS_IOMEM) += iomem.o
 129obj-$(CONFIG_RSEQ) += rseq.o
 130obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o
 131
 132obj-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_kunit.o
 133obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o
 134
 135CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUGIN)
 136obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak.o
 137KASAN_SANITIZE_stackleak.o := n
 138KCSAN_SANITIZE_stackleak.o := n
 139KCOV_INSTRUMENT_stackleak.o := n
 140
 141obj-$(CONFIG_SCF_TORTURE_TEST) += scftorture.o
 142
 143$(obj)/configs.o: $(obj)/config_data.gz
 144
 145targets += config_data config_data.gz
 146$(obj)/config_data.gz: $(obj)/config_data FORCE
 147        $(call if_changed,gzip)
 148
 149filechk_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
 156quiet_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
 161clean-files := kheaders_data.tar.xz kheaders.md5
 162