1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # 2 #
3 # Makefile for the linux kernel. 3 # Makefile for the linux kernel.
4 # 4 #
5 5
6 obj-y = fork.o exec_domain.o panic.o \ 6 obj-y = fork.o exec_domain.o panic.o \
7 cpu.o exit.o softirq.o resource.o 7 cpu.o exit.o softirq.o resource.o \
8 sysctl.o capability.o ptrace.o use !! 8 sysctl.o sysctl_binary.o capability.o ptrace.o user.o \
9 signal.o sys.o umh.o workqueue.o p 9 signal.o sys.o umh.o workqueue.o pid.o task_work.o \
10 extable.o params.o \ 10 extable.o params.o \
11 kthread.o sys_ni.o nsproxy.o \ 11 kthread.o sys_ni.o nsproxy.o \
12 notifier.o ksysfs.o cred.o reboot. 12 notifier.o ksysfs.o cred.o reboot.o \
13 async.o range.o smpboot.o ucount.o !! 13 async.o range.o smpboot.o ucount.o
14 14
15 obj-$(CONFIG_USERMODE_DRIVER) += usermode_driv !! 15 obj-$(CONFIG_MODULES) += kmod.o
16 obj-$(CONFIG_MULTIUSER) += groups.o 16 obj-$(CONFIG_MULTIUSER) += groups.o
17 obj-$(CONFIG_VHOST_TASK) += vhost_task.o <<
18 17
19 ifdef CONFIG_FUNCTION_TRACER 18 ifdef CONFIG_FUNCTION_TRACER
20 # Do not trace internal ftrace files 19 # Do not trace internal ftrace files
21 CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE) 20 CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE)
22 endif 21 endif
23 22
24 # Prevents flicker of uninteresting __do_softi 23 # Prevents flicker of uninteresting __do_softirq()/__local_bh_disable_ip()
25 # in coverage traces. 24 # in coverage traces.
26 KCOV_INSTRUMENT_softirq.o := n 25 KCOV_INSTRUMENT_softirq.o := n
27 # Avoid KCSAN instrumentation in softirq ("No 26 # Avoid KCSAN instrumentation in softirq ("No shared variables, all the data
28 # are CPU local" => assume no data races), to 27 # are CPU local" => assume no data races), to reduce overhead in interrupts.
29 KCSAN_SANITIZE_softirq.o = n 28 KCSAN_SANITIZE_softirq.o = n
30 # These are called from save_stack_trace() on 29 # These are called from save_stack_trace() on slub debug path,
31 # and produce insane amounts of uninteresting 30 # and produce insane amounts of uninteresting coverage.
>> 31 KCOV_INSTRUMENT_module.o := n
32 KCOV_INSTRUMENT_extable.o := n 32 KCOV_INSTRUMENT_extable.o := n
33 KCOV_INSTRUMENT_stacktrace.o := n 33 KCOV_INSTRUMENT_stacktrace.o := n
34 # Don't self-instrument. 34 # Don't self-instrument.
35 KCOV_INSTRUMENT_kcov.o := n 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 36 KASAN_SANITIZE_kcov.o := n
39 KCSAN_SANITIZE_kcov.o := n 37 KCSAN_SANITIZE_kcov.o := n
40 UBSAN_SANITIZE_kcov.o := n !! 38 CFLAGS_kcov.o := $(call cc-option, -fno-conserve-stack -fno-stack-protector)
41 KMSAN_SANITIZE_kcov.o := n !! 39
42 CFLAGS_kcov.o := $(call cc-option, -fno-conser !! 40 # cond_syscall is currently not LTO compatible
>> 41 CFLAGS_sys_ni.o = $(DISABLE_LTO)
43 42
44 obj-y += sched/ 43 obj-y += sched/
45 obj-y += locking/ 44 obj-y += locking/
46 obj-y += power/ 45 obj-y += power/
47 obj-y += printk/ 46 obj-y += printk/
48 obj-y += irq/ 47 obj-y += irq/
49 obj-y += rcu/ 48 obj-y += rcu/
50 obj-y += livepatch/ 49 obj-y += livepatch/
51 obj-y += dma/ 50 obj-y += dma/
52 obj-y += entry/ <<
53 obj-$(CONFIG_MODULES) += module/ <<
54 51
55 obj-$(CONFIG_KCMP) += kcmp.o !! 52 obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o
56 obj-$(CONFIG_FREEZER) += freezer.o 53 obj-$(CONFIG_FREEZER) += freezer.o
57 obj-$(CONFIG_PROFILING) += profile.o 54 obj-$(CONFIG_PROFILING) += profile.o
58 obj-$(CONFIG_STACKTRACE) += stacktrace.o 55 obj-$(CONFIG_STACKTRACE) += stacktrace.o
59 obj-y += time/ 56 obj-y += time/
60 obj-$(CONFIG_FUTEX) += futex/ !! 57 obj-$(CONFIG_FUTEX) += futex.o
61 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o 58 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
62 obj-$(CONFIG_SMP) += smp.o 59 obj-$(CONFIG_SMP) += smp.o
63 ifneq ($(CONFIG_SMP),y) 60 ifneq ($(CONFIG_SMP),y)
64 obj-y += up.o 61 obj-y += up.o
65 endif 62 endif
66 obj-$(CONFIG_UID16) += uid16.o 63 obj-$(CONFIG_UID16) += uid16.o
>> 64 obj-$(CONFIG_MODULES) += module.o
>> 65 obj-$(CONFIG_MODULE_SIG) += module_signing.o
67 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_sign 66 obj-$(CONFIG_MODULE_SIG_FORMAT) += module_signature.o
68 obj-$(CONFIG_KALLSYMS) += kallsyms.o 67 obj-$(CONFIG_KALLSYMS) += kallsyms.o
69 obj-$(CONFIG_KALLSYMS_SELFTEST) += kallsyms_se <<
70 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o 68 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
71 obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o elf !! 69 obj-$(CONFIG_CRASH_CORE) += crash_core.o
72 obj-$(CONFIG_CRASH_RESERVE) += crash_reserve.o <<
73 obj-$(CONFIG_KEXEC_CORE) += kexec_core.o 70 obj-$(CONFIG_KEXEC_CORE) += kexec_core.o
74 obj-$(CONFIG_CRASH_DUMP) += crash_core.o <<
75 obj-$(CONFIG_KEXEC) += kexec.o 71 obj-$(CONFIG_KEXEC) += kexec.o
76 obj-$(CONFIG_KEXEC_FILE) += kexec_file.o 72 obj-$(CONFIG_KEXEC_FILE) += kexec_file.o
77 obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o 73 obj-$(CONFIG_KEXEC_ELF) += kexec_elf.o
78 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtrace 74 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
79 obj-$(CONFIG_COMPAT) += compat.o 75 obj-$(CONFIG_COMPAT) += compat.o
80 obj-$(CONFIG_CGROUPS) += cgroup/ 76 obj-$(CONFIG_CGROUPS) += cgroup/
81 obj-$(CONFIG_UTS_NS) += utsname.o 77 obj-$(CONFIG_UTS_NS) += utsname.o
82 obj-$(CONFIG_USER_NS) += user_namespace.o 78 obj-$(CONFIG_USER_NS) += user_namespace.o
83 obj-$(CONFIG_PID_NS) += pid_namespace.o 79 obj-$(CONFIG_PID_NS) += pid_namespace.o
84 obj-$(CONFIG_IKCONFIG) += configs.o 80 obj-$(CONFIG_IKCONFIG) += configs.o
85 obj-$(CONFIG_IKHEADERS) += kheaders.o 81 obj-$(CONFIG_IKHEADERS) += kheaders.o
86 obj-$(CONFIG_SMP) += stop_machine.o 82 obj-$(CONFIG_SMP) += stop_machine.o
>> 83 obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
87 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o 84 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
88 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_ 85 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o audit_watch.o audit_fsnotify.o audit_tree.o
89 obj-$(CONFIG_GCOV_KERNEL) += gcov/ 86 obj-$(CONFIG_GCOV_KERNEL) += gcov/
90 obj-$(CONFIG_KCOV) += kcov.o 87 obj-$(CONFIG_KCOV) += kcov.o
91 obj-$(CONFIG_KPROBES) += kprobes.o 88 obj-$(CONFIG_KPROBES) += kprobes.o
92 obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o 89 obj-$(CONFIG_FAIL_FUNCTION) += fail_function.o
93 obj-$(CONFIG_KGDB) += debug/ 90 obj-$(CONFIG_KGDB) += debug/
94 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o 91 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
95 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o 92 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
96 obj-$(CONFIG_HARDLOCKUP_DETECTOR_BUDDY) += wat !! 93 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watchdog_hld.o
97 obj-$(CONFIG_HARDLOCKUP_DETECTOR_PERF) += watc <<
98 obj-$(CONFIG_SECCOMP) += seccomp.o 94 obj-$(CONFIG_SECCOMP) += seccomp.o
99 obj-$(CONFIG_RELAY) += relay.o 95 obj-$(CONFIG_RELAY) += relay.o
100 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o 96 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
101 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o 97 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
102 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct. 98 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
103 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o 99 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
104 obj-$(CONFIG_LATENCYTOP) += latencytop.o 100 obj-$(CONFIG_LATENCYTOP) += latencytop.o
>> 101 obj-$(CONFIG_ELFCORE) += elfcore.o
105 obj-$(CONFIG_FUNCTION_TRACER) += trace/ 102 obj-$(CONFIG_FUNCTION_TRACER) += trace/
106 obj-$(CONFIG_TRACING) += trace/ 103 obj-$(CONFIG_TRACING) += trace/
107 obj-$(CONFIG_TRACE_CLOCK) += trace/ 104 obj-$(CONFIG_TRACE_CLOCK) += trace/
108 obj-$(CONFIG_RING_BUFFER) += trace/ 105 obj-$(CONFIG_RING_BUFFER) += trace/
109 obj-$(CONFIG_TRACEPOINTS) += trace/ 106 obj-$(CONFIG_TRACEPOINTS) += trace/
110 obj-$(CONFIG_RETHOOK) += trace/ <<
111 obj-$(CONFIG_IRQ_WORK) += irq_work.o 107 obj-$(CONFIG_IRQ_WORK) += irq_work.o
112 obj-$(CONFIG_CPU_PM) += cpu_pm.o 108 obj-$(CONFIG_CPU_PM) += cpu_pm.o
113 obj-$(CONFIG_BPF) += bpf/ 109 obj-$(CONFIG_BPF) += bpf/
114 obj-$(CONFIG_KCSAN) += kcsan/ 110 obj-$(CONFIG_KCSAN) += kcsan/
115 obj-$(CONFIG_SHADOW_CALL_STACK) += scs.o 111 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 <<
119 112
120 obj-$(CONFIG_PERF_EVENTS) += events/ 113 obj-$(CONFIG_PERF_EVENTS) += events/
121 114
122 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-ret 115 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
123 obj-$(CONFIG_PADATA) += padata.o 116 obj-$(CONFIG_PADATA) += padata.o
>> 117 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
124 obj-$(CONFIG_JUMP_LABEL) += jump_label.o 118 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
125 obj-$(CONFIG_CONTEXT_TRACKING) += context_trac 119 obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
126 obj-$(CONFIG_TORTURE_TEST) += torture.o 120 obj-$(CONFIG_TORTURE_TEST) += torture.o
127 121
128 obj-$(CONFIG_HAS_IOMEM) += iomem.o 122 obj-$(CONFIG_HAS_IOMEM) += iomem.o
129 obj-$(CONFIG_RSEQ) += rseq.o 123 obj-$(CONFIG_RSEQ) += rseq.o
130 obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o 124 obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o
131 125
132 obj-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_ <<
133 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test 126 obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o
134 127
135 CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUG 128 CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUGIN)
136 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stacklea 129 obj-$(CONFIG_GCC_PLUGIN_STACKLEAK) += stackleak.o
137 KASAN_SANITIZE_stackleak.o := n 130 KASAN_SANITIZE_stackleak.o := n
138 KCSAN_SANITIZE_stackleak.o := n 131 KCSAN_SANITIZE_stackleak.o := n
139 KCOV_INSTRUMENT_stackleak.o := n 132 KCOV_INSTRUMENT_stackleak.o := n
140 133
141 obj-$(CONFIG_SCF_TORTURE_TEST) += scftorture.o <<
142 <<
143 $(obj)/configs.o: $(obj)/config_data.gz 134 $(obj)/configs.o: $(obj)/config_data.gz
144 135
145 targets += config_data config_data.gz !! 136 targets += config_data.gz
146 $(obj)/config_data.gz: $(obj)/config_data FORC !! 137 $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE
147 $(call if_changed,gzip) 138 $(call if_changed,gzip)
148 <<
149 filechk_cat = cat $< <<
150 <<
151 $(obj)/config_data: $(KCONFIG_CONFIG) FORCE <<
152 $(call filechk,cat) <<
153 139
154 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz 140 $(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
155 141
156 quiet_cmd_genikh = CHK $(obj)/kheaders_dat 142 quiet_cmd_genikh = CHK $(obj)/kheaders_data.tar.xz
157 cmd_genikh = $(CONFIG_SHELL) $(srctree)/ 143 cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
158 $(obj)/kheaders_data.tar.xz: FORCE 144 $(obj)/kheaders_data.tar.xz: FORCE
159 $(call cmd,genikh) 145 $(call cmd,genikh)
160 146
161 clean-files := kheaders_data.tar.xz kheaders.m 147 clean-files := kheaders_data.tar.xz kheaders.md5
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