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
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