1 # SPDX-License-Identifier: GPL-2.0 <<
2 # 1 #
3 # Makefile for the linux kernel. 2 # Makefile for the linux kernel.
4 # 3 #
5 4
6 obj-y = fork.o exec_domain.o panic.o \ !! 5 obj-y = sched.o fork.o exec_domain.o panic.o printk.o profile.o \
7 cpu.o exit.o softirq.o resource.o !! 6 exit.o itimer.o time.o softirq.o resource.o \
8 sysctl.o capability.o ptrace.o use !! 7 sysctl.o capability.o ptrace.o timer.o user.o \
9 signal.o sys.o umh.o workqueue.o p !! 8 signal.o sys.o kmod.o workqueue.o pid.o \
10 extable.o params.o \ !! 9 rcupdate.o intermodule.o extable.o params.o posix-timers.o
11 kthread.o sys_ni.o nsproxy.o \ <<
12 notifier.o ksysfs.o cred.o reboot. <<
13 async.o range.o smpboot.o ucount.o <<
14 <<
15 obj-$(CONFIG_USERMODE_DRIVER) += usermode_driv <<
16 obj-$(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 = $(CC_FLAGS_FTRACE) <<
22 endif <<
23 10
24 # Prevents flicker of uninteresting __do_softi !! 11 obj-$(CONFIG_FUTEX) += futex.o
25 # in coverage traces. <<
26 KCOV_INSTRUMENT_softirq.o := n <<
27 # Avoid KCSAN instrumentation in softirq ("No <<
28 # are CPU local" => assume no data races), to <<
29 KCSAN_SANITIZE_softirq.o = n <<
30 # These are called from save_stack_trace() on <<
31 # and produce insane amounts of uninteresting <<
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 <<
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 := $(call cc-option, -fno-conser <<
43 <<
44 obj-y += sched/ <<
45 obj-y += locking/ <<
46 obj-y += power/ <<
47 obj-y += printk/ <<
48 obj-y += irq/ <<
49 obj-y += rcu/ <<
50 obj-y += livepatch/ <<
51 obj-y += dma/ <<
52 obj-y += entry/ <<
53 obj-$(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 12 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
62 obj-$(CONFIG_SMP) += smp.o !! 13 obj-$(CONFIG_SMP) += cpu.o
63 ifneq ($(CONFIG_SMP),y) <<
64 obj-y += up.o <<
65 endif <<
66 obj-$(CONFIG_UID16) += uid16.o 14 obj-$(CONFIG_UID16) += uid16.o
67 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_sign !! 15 obj-$(CONFIG_MODULES) += module.o
68 obj-$(CONFIG_KALLSYMS) += kallsyms.o 16 obj-$(CONFIG_KALLSYMS) += kallsyms.o
69 obj-$(CONFIG_KALLSYMS_SELFTEST) += kallsyms_se !! 17 obj-$(CONFIG_PM) += power/
70 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o 18 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
71 obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o elf <<
72 obj-$(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) += backtrace <<
79 obj-$(CONFIG_COMPAT) += compat.o 19 obj-$(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-$(CONFIG_IKCONFIG) += configs.o 20 obj-$(CONFIG_IKCONFIG) += configs.o
85 obj-$(CONFIG_IKHEADERS) += kheaders.o !! 21 obj-$(CONFIG_IKCONFIG_PROC) += configs.o
86 obj-$(CONFIG_SMP) += stop_machine.o <<
87 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o <<
88 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_ <<
89 obj-$(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-$(CONFIG_HARDLOCKUP_DETECTOR_BUDDY) += wat <<
97 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watc <<
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-$(CONFIG_TASKSTATS) += taskstats.o tsacct. <<
103 obj-$(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-$(CONFIG_HAVE_STATIC_CALL) += static_call. <<
117 obj-$(CONFIG_HAVE_STATIC_CALL_INLINE) += stati <<
118 obj-$(CONFIG_CFI_CLANG) += cfi.o <<
119 <<
120 obj-$(CONFIG_PERF_EVENTS) += events/ <<
121 <<
122 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-ret <<
123 obj-$(CONFIG_PADATA) += padata.o <<
124 obj-$(CONFIG_JUMP_LABEL) += jump_label.o <<
125 obj-$(CONFIG_CONTEXT_TRACKING) += context_trac <<
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-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_ <<
133 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test <<
134 <<
135 CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUG <<
136 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stacklea <<
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 22
143 $(obj)/configs.o: $(obj)/config_data.gz !! 23 ifneq ($(CONFIG_IA64),y)
144 !! 24 # According to Alan Modra <alan@linuxcare.com.au>, the -fno-omit-frame-pointer is
145 targets += config_data config_data.gz !! 25 # needed for x86 only. Why this used to be enabled for all architectures is beyond
146 $(obj)/config_data.gz: $(obj)/config_data FORC !! 26 # me. I suspect most platforms don't need this, but until we know that for sure
147 $(call if_changed,gzip) !! 27 # I turn this off for IA-64 only. Andreas Schwab says it's also needed on m68k
148 !! 28 # to get a correct value for the wait-channel (WCHAN in ps). --davidm
149 filechk_cat = cat $< !! 29 CFLAGS_sched.o := $(PROFILING) -fno-omit-frame-pointer
>> 30 endif
150 31
151 $(obj)/config_data: $(KCONFIG_CONFIG) FORCE !! 32 # configs.o uses generated files - dependecies must be listed explicitly
152 $(call filechk,cat) !! 33 $(obj)/configs.o: $(obj)/ikconfig.h
153 34
154 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz !! 35 ifdef CONFIG_IKCONFIG_PROC
>> 36 $(obj)/configs.o: $(obj)/config_data.h
>> 37 endif
155 38
156 quiet_cmd_genikh = CHK $(obj)/kheaders_dat !! 39 # ikconfig.h contains all the selected config entries - generated
157 cmd_genikh = $(CONFIG_SHELL) $(srctree)/ !! 40 # from top-level Makefile and .config. Info from ikconfig.h can
158 $(obj)/kheaders_data.tar.xz: FORCE !! 41 # be extracted from the kernel binary.
159 $(call cmd,genikh) !! 42
>> 43 quiet_cmd_ikconfig = IKCFG $@
>> 44 cmd_ikconfig = $(CONFIG_SHELL) $< .config $(srctree)/Makefile > $@
>> 45
>> 46 targets += ikconfig.h
>> 47 $(obj)/ikconfig.h: scripts/mkconfigs .config Makefile FORCE
>> 48 $(call if_changed,ikconfig)
>> 49
>> 50 # config_data.h contains the same information as ikconfig.h but gzipped.
>> 51 # Info from config_data can be extracted from /proc/config*
>> 52 targets += config_data.gz
>> 53 $(obj)/config_data.gz: .config FORCE
>> 54 $(call if_changed,gzip)
160 55
161 clean-files := kheaders_data.tar.xz kheaders.m !! 56 quiet_cmd_ikconfiggz = IKCFG $@
>> 57 cmd_ikconfiggz = cat $< | scripts/bin2c kernel_config_data > $@
>> 58 targets += config_data.h
>> 59 $(obj)/config_data.h: $(obj)/config_data.gz FORCE
>> 60 $(call if_changed,ikconfiggz)
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