1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for the linux kernel.
6 obj-y = fork.o exec_domain.o panic.o \
7 cpu.o exit.o softirq.o resource.o \
8 sysctl.o sysctl_binary.o capability.o ptrace.o user.o \
9 signal.o sys.o umh.o workqueue.o pid.o task_work.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
15 obj-$(CONFIG_MODULES) += kmod.o
16 obj-$(CONFIG_MULTIUSER) += groups.o
18 ifdef CONFIG_FUNCTION_TRACER
19 # Do not trace internal ftrace files
20 CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE)
23 # Prevents flicker of uninteresting __do_softirq()/__local_bh_disable_ip()
25 KCOV_INSTRUMENT_softirq.o := n
26 # Avoid KCSAN instrumentation in softirq ("No shared variables, all the data
27 # are CPU local" => assume no data races), to reduce overhead in interrupts.
28 KCSAN_SANITIZE_softirq.o = n
29 # These are called from save_stack_trace() on slub debug path,
30 # and produce insane amounts of uninteresting coverage.
31 KCOV_INSTRUMENT_module.o := n
32 KCOV_INSTRUMENT_extable.o := n
33 KCOV_INSTRUMENT_stacktrace.o := n
34 # Don't self-instrument.
35 KCOV_INSTRUMENT_kcov.o := n
36 KASAN_SANITIZE_kcov.o := n
37 KCSAN_SANITIZE_kcov.o := n
38 CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
40 # cond_syscall is currently not LTO compatible
41 CFLAGS_sys_ni.o = $(DISABLE_LTO)
52 obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
53 obj-$(CONFIG_FREEZER) += freezer.o
54 obj-$(CONFIG_PROFILING) += profile.o
55 obj-$(CONFIG_STACKTRACE) += stacktrace.o
57 obj-$(CONFIG_FUTEX) += futex.o
58 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
59 obj-$(CONFIG_SMP) += smp.o
60 ifneq ($(CONFIG_SMP),y)
63 obj-$(CONFIG_UID16) += uid16.o
64 obj-$(CONFIG_MODULES) += module.o
65 obj-$(CONFIG_MODULE_SIG) += module_signing.o
66 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_signature.o
67 obj-$(CONFIG_KALLSYMS) += kallsyms.o
68 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
69 obj-$(CONFIG_CRASH_CORE) += crash_core.o
70 obj-$(CONFIG_KEXEC_CORE) += kexec_core.o
71 obj-$(CONFIG_KEXEC) += kexec.o
72 obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
73 obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o
74 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
75 obj-$(CONFIG_COMPAT) += compat.o
76 obj-$(CONFIG_CGROUPS) += cgroup/
77 obj-$(CONFIG_UTS_NS) += utsname.o
78 obj-$(CONFIG_USER_NS) += user_namespace.o
79 obj-$(CONFIG_PID_NS) += pid_namespace.o
80 obj-$(CONFIG_IKCONFIG) += configs.o
81 obj-$(CONFIG_IKHEADERS) += kheaders.o
82 obj-$(CONFIG_SMP) += stop_machine.o
83 obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
84 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
85 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
86 obj-$(CONFIG_GCOV_KERNEL) += gcov/
87 obj-$(CONFIG_KCOV) += kcov.o
88 obj-$(CONFIG_KPROBES) += kprobes.o
89 obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o
90 obj-$(CONFIG_KGDB) += debug/
91 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
92 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
93 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_hld.o
94 obj-$(CONFIG_SECCOMP) += seccomp.o
95 obj-$(CONFIG_RELAY) += relay.o
96 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
97 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
98 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
99 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
100 obj-$(CONFIG_LATENCYTOP) += latencytop.o
101 obj-$(CONFIG_ELFCORE) += elfcore.o
102 obj-$(CONFIG_FUNCTION_TRACER) += trace/
103 obj-$(CONFIG_TRACING) += trace/
104 obj-$(CONFIG_TRACE_CLOCK) += trace/
105 obj-$(CONFIG_RING_BUFFER) += trace/
106 obj-$(CONFIG_TRACEPOINTS) += trace/
107 obj-$(CONFIG_IRQ_WORK) += irq_work.o
108 obj-$(CONFIG_CPU_PM) += cpu_pm.o
109 obj-$(CONFIG_BPF) += bpf/
110 obj-$(CONFIG_KCSAN) += kcsan/
111 obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
113 obj-$(CONFIG_PERF_EVENTS) += events/
115 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
116 obj-$(CONFIG_PADATA) += padata.o
117 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
118 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
119 obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
120 obj-$(CONFIG_TORTURE_TEST) += torture.o
122 obj-$(CONFIG_HAS_IOMEM) += iomem.o
123 obj-$(CONFIG_RSEQ) += rseq.o
124 obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o
126 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o
128 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak.o
129 KASAN_SANITIZE_stackleak.o := n
130 KCSAN_SANITIZE_stackleak.o := n
131 KCOV_INSTRUMENT_stackleak.o := n
133 $(obj)/configs.o: $(obj)/config_data.gz
135 targets += config_data.gz
136 $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE
137 $(call if_changed,gzip)
139 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
141 quiet_cmd_genikh = CHK $(obj)/kheaders_data.tar.xz
142 cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
143 $(obj)/kheaders_data.tar.xz: FORCE
146 clean-files := kheaders_data.tar.xz kheaders.md5