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 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 regset.o
15 obj-$(CONFIG_USERMODE_DRIVER) += usermode_driver.o
16 obj-$(CONFIG_MULTIUSER) += groups.o
17 obj-$(CONFIG_VHOST_TASK) += vhost_task.o
19 ifdef CONFIG_FUNCTION_TRACER
20 # Do not trace internal ftrace files
21 CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE)
24 # Prevents flicker of uninteresting __do_softirq()/__local_bh_disable_ip()
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
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 := $(call cc-option, -fno-conserve-stack) -fno-stack-protector
53 obj-$(CONFIG_MODULES) += module/
55 obj-$(CONFIG_KCMP) += kcmp.o
56 obj-$(CONFIG_FREEZER) += freezer.o
57 obj-$(CONFIG_PROFILING) += profile.o
58 obj-$(CONFIG_STACKTRACE) += stacktrace.o
60 obj-$(CONFIG_FUTEX) += futex/
61 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
62 obj-$(CONFIG_SMP) += smp.o
63 ifneq ($(CONFIG_SMP),y)
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_CRASH_CORE) += crash_core.o
72 obj-$(CONFIG_KEXEC_CORE) += kexec_core.o
73 obj-$(CONFIG_KEXEC) += kexec.o
74 obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
75 obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o
76 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
77 obj-$(CONFIG_COMPAT) += compat.o
78 obj-$(CONFIG_CGROUPS) += cgroup/
79 obj-$(CONFIG_UTS_NS) += utsname.o
80 obj-$(CONFIG_USER_NS) += user_namespace.o
81 obj-$(CONFIG_PID_NS) += pid_namespace.o
82 obj-$(CONFIG_IKCONFIG) += configs.o
83 obj-$(CONFIG_IKHEADERS) += kheaders.o
84 obj-$(CONFIG_SMP) += stop_machine.o
85 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
86 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
87 obj-$(CONFIG_GCOV_KERNEL) += gcov/
88 obj-$(CONFIG_KCOV) += kcov.o
89 obj-$(CONFIG_KPROBES) += kprobes.o
90 obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o
91 obj-$(CONFIG_KGDB) += debug/
92 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
93 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
94 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_hld.o
95 obj-$(CONFIG_SECCOMP) += seccomp.o
96 obj-$(CONFIG_RELAY) += relay.o
97 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
98 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
99 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
100 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
101 obj-$(CONFIG_LATENCYTOP) += latencytop.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_RETHOOK) += trace/
108 obj-$(CONFIG_IRQ_WORK) += irq_work.o
109 obj-$(CONFIG_CPU_PM) += cpu_pm.o
110 obj-$(CONFIG_BPF) += bpf/
111 obj-$(CONFIG_KCSAN) += kcsan/
112 obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o
113 obj-$(CONFIG_HAVE_STATIC_CALL) += static_call.o
114 obj-$(CONFIG_HAVE_STATIC_CALL_INLINE) += static_call_inline.o
115 obj-$(CONFIG_CFI_CLANG) += cfi.o
117 obj-$(CONFIG_PERF_EVENTS) += events/
119 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
120 obj-$(CONFIG_PADATA) += padata.o
121 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
122 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
123 obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
124 obj-$(CONFIG_TORTURE_TEST) += torture.o
126 obj-$(CONFIG_HAS_IOMEM) += iomem.o
127 obj-$(CONFIG_RSEQ) += rseq.o
128 obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o
130 obj-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_kunit.o
131 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o
133 CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUGIN)
134 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak.o
135 KASAN_SANITIZE_stackleak.o := n
136 KCSAN_SANITIZE_stackleak.o := n
137 KCOV_INSTRUMENT_stackleak.o := n
139 obj-$(CONFIG_SCF_TORTURE_TEST) += scftorture.o
141 $(obj)/configs.o: $(obj)/config_data.gz
143 targets += config_data config_data.gz
144 $(obj)/config_data.gz: $(obj)/config_data FORCE
145 $(call if_changed,gzip)
149 $(obj)/config_data: $(KCONFIG_CONFIG) FORCE
152 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
154 quiet_cmd_genikh = CHK $(obj)/kheaders_data.tar.xz
155 cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
156 $(obj)/kheaders_data.tar.xz: FORCE
159 clean-files := kheaders_data.tar.xz kheaders.md5