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Commit | Line | Data |
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1da177e4 LT |
1 | # |
2 | # Makefile for the linux kernel. | |
3 | # | |
4 | ||
b9ee979e | 5 | obj-y = fork.o exec_domain.o panic.o \ |
5cee9645 TG |
6 | cpu.o exit.o softirq.o resource.o \ |
7 | sysctl.o sysctl_binary.o capability.o ptrace.o user.o \ | |
e73f8959 | 8 | signal.o sys.o kmod.o workqueue.o pid.o task_work.o \ |
5cee9645 TG |
9 | extable.o params.o \ |
10 | kthread.o sys_ni.o nsproxy.o \ | |
15d94b82 | 11 | notifier.o ksysfs.o cred.o reboot.o \ |
2813893f IM |
12 | async.o range.o smpboot.o |
13 | ||
14 | obj-$(CONFIG_MULTIUSER) += groups.o | |
029632fb | 15 | |
606576ce | 16 | ifdef CONFIG_FUNCTION_TRACER |
6ec56232 | 17 | # Do not trace debug files and internal ftrace files |
c0a80c0c HC |
18 | CFLAGS_REMOVE_cgroup-debug.o = $(CC_FLAGS_FTRACE) |
19 | CFLAGS_REMOVE_irq_work.o = $(CC_FLAGS_FTRACE) | |
1d09daa5 SR |
20 | endif |
21 | ||
58edae3a AK |
22 | # cond_syscall is currently not LTO compatible |
23 | CFLAGS_sys_ni.o = $(DISABLE_LTO) | |
24 | ||
391e43da | 25 | obj-y += sched/ |
01768b42 | 26 | obj-y += locking/ |
dae5cbc2 | 27 | obj-y += power/ |
b9ee979e | 28 | obj-y += printk/ |
0244ad00 | 29 | obj-y += irq/ |
4102adab | 30 | obj-y += rcu/ |
b700e7f0 | 31 | obj-y += livepatch/ |
391e43da | 32 | |
1e142b29 | 33 | obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o |
8174f150 | 34 | obj-$(CONFIG_FREEZER) += freezer.o |
b03f6489 | 35 | obj-$(CONFIG_PROFILING) += profile.o |
8637c099 | 36 | obj-$(CONFIG_STACKTRACE) += stacktrace.o |
ad596171 | 37 | obj-y += time/ |
1da177e4 | 38 | obj-$(CONFIG_FUTEX) += futex.o |
34f192c6 IM |
39 | ifeq ($(CONFIG_COMPAT),y) |
40 | obj-$(CONFIG_FUTEX) += futex_compat.o | |
41 | endif | |
1da177e4 | 42 | obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o |
351f8f8e | 43 | obj-$(CONFIG_SMP) += smp.o |
9316fcac | 44 | ifneq ($(CONFIG_SMP),y) |
53ce3d95 AM |
45 | obj-y += up.o |
46 | endif | |
1da177e4 | 47 | obj-$(CONFIG_UID16) += uid16.o |
b56e5a17 | 48 | obj-$(CONFIG_SYSTEM_TRUSTED_KEYRING) += system_keyring.o system_certificates.o |
1da177e4 | 49 | obj-$(CONFIG_MODULES) += module.o |
b56e5a17 | 50 | obj-$(CONFIG_MODULE_SIG) += module_signing.o |
1da177e4 | 51 | obj-$(CONFIG_KALLSYMS) += kallsyms.o |
1da177e4 | 52 | obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o |
dc009d92 | 53 | obj-$(CONFIG_KEXEC) += kexec.o |
6dab2778 | 54 | obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o |
1da177e4 | 55 | obj-$(CONFIG_COMPAT) += compat.o |
ddbcc7e8 | 56 | obj-$(CONFIG_CGROUPS) += cgroup.o |
dc52ddc0 | 57 | obj-$(CONFIG_CGROUP_FREEZER) += cgroup_freezer.o |
49b786ea | 58 | obj-$(CONFIG_CGROUP_PIDS) += cgroup_pids.o |
1da177e4 | 59 | obj-$(CONFIG_CPUSETS) += cpuset.o |
aee16ce7 PE |
60 | obj-$(CONFIG_UTS_NS) += utsname.o |
61 | obj-$(CONFIG_USER_NS) += user_namespace.o | |
74bd59bb | 62 | obj-$(CONFIG_PID_NS) += pid_namespace.o |
1da177e4 | 63 | obj-$(CONFIG_IKCONFIG) += configs.o |
bbf1bb3e | 64 | obj-$(CONFIG_SMP) += stop_machine.o |
8c1c9356 | 65 | obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o |
939a67fc | 66 | obj-$(CONFIG_AUDIT) += audit.o auditfilter.o |
1da177e4 | 67 | obj-$(CONFIG_AUDITSYSCALL) += auditsc.o |
939a67fc | 68 | obj-$(CONFIG_AUDIT_WATCH) += audit_watch.o |
74c3cbe3 | 69 | obj-$(CONFIG_AUDIT_TREE) += audit_tree.o |
939a67fc | 70 | obj-$(CONFIG_GCOV_KERNEL) += gcov/ |
1da177e4 | 71 | obj-$(CONFIG_KPROBES) += kprobes.o |
c4338209 | 72 | obj-$(CONFIG_KGDB) += debug/ |
e162b39a | 73 | obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o |
58687acb | 74 | obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o |
1da177e4 | 75 | obj-$(CONFIG_SECCOMP) += seccomp.o |
b86ff981 | 76 | obj-$(CONFIG_RELAY) += relay.o |
39732acd | 77 | obj-$(CONFIG_SYSCTL) += utsname_sysctl.o |
ca74e92b | 78 | obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o |
f3cef7a9 | 79 | obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o |
97e1c18e | 80 | obj-$(CONFIG_TRACEPOINTS) += tracepoint.o |
9745512c | 81 | obj-$(CONFIG_LATENCYTOP) += latencytop.o |
1fcccbac DH |
82 | obj-$(CONFIG_BINFMT_ELF) += elfcore.o |
83 | obj-$(CONFIG_COMPAT_BINFMT_ELF) += elfcore.o | |
84 | obj-$(CONFIG_BINFMT_ELF_FDPIC) += elfcore.o | |
606576ce | 85 | obj-$(CONFIG_FUNCTION_TRACER) += trace/ |
bc0c38d1 | 86 | obj-$(CONFIG_TRACING) += trace/ |
ea632e9f | 87 | obj-$(CONFIG_TRACE_CLOCK) += trace/ |
1155de47 | 88 | obj-$(CONFIG_RING_BUFFER) += trace/ |
870915e0 | 89 | obj-$(CONFIG_TRACEPOINTS) += trace/ |
e360adbe | 90 | obj-$(CONFIG_IRQ_WORK) += irq_work.o |
ab10023e | 91 | obj-$(CONFIG_CPU_PM) += cpu_pm.o |
f89b7755 | 92 | obj-$(CONFIG_BPF) += bpf/ |
fae85b7c BP |
93 | |
94 | obj-$(CONFIG_PERF_EVENTS) += events/ | |
95 | ||
7a041097 | 96 | obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o |
16295bec | 97 | obj-$(CONFIG_PADATA) += padata.o |
93a72052 | 98 | obj-$(CONFIG_CRASH_DUMP) += crash_dump.o |
b77f0f3c | 99 | obj-$(CONFIG_JUMP_LABEL) += jump_label.o |
91d1aa43 | 100 | obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o |
51b1130e | 101 | obj-$(CONFIG_TORTURE_TEST) += torture.o |
1da177e4 | 102 | |
1da177e4 LT |
103 | $(obj)/configs.o: $(obj)/config_data.h |
104 | ||
105 | # config_data.h contains the same information as ikconfig.h but gzipped. | |
106 | # Info from config_data can be extracted from /proc/config* | |
107 | targets += config_data.gz | |
41263fc6 | 108 | $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE |
1da177e4 LT |
109 | $(call if_changed,gzip) |
110 | ||
8370edea | 111 | filechk_ikconfiggz = (echo "static const char kernel_config_data[] __used = MAGIC_START"; cat $< | scripts/basic/bin2c; echo "MAGIC_END;") |
1da177e4 LT |
112 | targets += config_data.h |
113 | $(obj)/config_data.h: $(obj)/config_data.gz FORCE | |
e78e8f2d | 114 | $(call filechk,ikconfiggz) |
bdc80787 | 115 | |
f0e6d220 | 116 | ############################################################################### |
631cc66e | 117 | # |
0fbd39cf | 118 | # Roll all the X.509 certificates that we can find together and pull them into |
b56e5a17 DH |
119 | # the kernel so that they get loaded into the system trusted keyring during |
120 | # boot. | |
631cc66e | 121 | # |
0fbd39cf DH |
122 | # We look in the source root and the build root for all files whose name ends |
123 | # in ".x509". Unfortunately, this will generate duplicate filenames, so we | |
124 | # have make canonicalise the pathnames and then sort them to discard the | |
125 | # duplicates. | |
631cc66e | 126 | # |
f0e6d220 | 127 | ############################################################################### |
b56e5a17 | 128 | ifeq ($(CONFIG_SYSTEM_TRUSTED_KEYRING),y) |
f0e6d220 | 129 | X509_CERTIFICATES-y := $(wildcard *.x509) $(wildcard $(srctree)/*.x509) |
d7ec435f DH |
130 | X509_CERTIFICATES-$(CONFIG_MODULE_SIG) += $(objtree)/signing_key.x509 |
131 | X509_CERTIFICATES-raw := $(sort $(foreach CERT,$(X509_CERTIFICATES-y), \ | |
0fbd39cf | 132 | $(or $(realpath $(CERT)),$(CERT)))) |
d7ec435f | 133 | X509_CERTIFICATES := $(subst $(realpath $(objtree))/,,$(X509_CERTIFICATES-raw)) |
f0e6d220 DH |
134 | |
135 | ifeq ($(X509_CERTIFICATES),) | |
136 | $(warning *** No X.509 certificates found ***) | |
137 | endif | |
138 | ||
139 | ifneq ($(wildcard $(obj)/.x509.list),) | |
140 | ifneq ($(shell cat $(obj)/.x509.list),$(X509_CERTIFICATES)) | |
7df9ab84 | 141 | $(warning X.509 certificate list changed to "$(X509_CERTIFICATES)" from "$(shell cat $(obj)/.x509.list)") |
f0e6d220 DH |
142 | $(shell rm $(obj)/.x509.list) |
143 | endif | |
144 | endif | |
145 | ||
b56e5a17 | 146 | kernel/system_certificates.o: $(obj)/x509_certificate_list |
e10e1774 | 147 | |
f0e6d220 | 148 | quiet_cmd_x509certs = CERTS $@ |
89f703f0 | 149 | cmd_x509certs = cat $(X509_CERTIFICATES) /dev/null >$@ $(foreach X509,$(X509_CERTIFICATES),; $(kecho) " - Including cert $(X509)") |
e10e1774 | 150 | |
f0e6d220 DH |
151 | targets += $(obj)/x509_certificate_list |
152 | $(obj)/x509_certificate_list: $(X509_CERTIFICATES) $(obj)/.x509.list | |
153 | $(call if_changed,x509certs) | |
631cc66e | 154 | |
f0e6d220 DH |
155 | targets += $(obj)/.x509.list |
156 | $(obj)/.x509.list: | |
157 | @echo $(X509_CERTIFICATES) >$@ | |
f46a3cbb | 158 | endif |
d441108c | 159 | |
f0e6d220 | 160 | clean-files := x509_certificate_list .x509.list |
d441108c | 161 | |
b56e5a17 | 162 | ifeq ($(CONFIG_MODULE_SIG),y) |
d441108c DH |
163 | ############################################################################### |
164 | # | |
165 | # If module signing is requested, say by allyesconfig, but a key has not been | |
166 | # supplied, then one will need to be generated to make sure the build does not | |
167 | # fail and that the kernel may be used afterwards. | |
168 | # | |
169 | ############################################################################### | |
22753674 | 170 | ifndef CONFIG_MODULE_SIG_HASH |
5e8cb1e4 DH |
171 | $(error Could not determine digest type to use from kernel config) |
172 | endif | |
173 | ||
d441108c DH |
174 | signing_key.priv signing_key.x509: x509.genkey |
175 | @echo "###" | |
176 | @echo "### Now generating an X.509 key pair to be used for signing modules." | |
177 | @echo "###" | |
178 | @echo "### If this takes a long time, you might wish to run rngd in the" | |
179 | @echo "### background to keep the supply of entropy topped up. It" | |
2008713c PA |
180 | @echo "### needs to be run as root, and uses a hardware random" |
181 | @echo "### number generator if one is available." | |
d441108c | 182 | @echo "###" |
22753674 MM |
183 | openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \ |
184 | -batch -x509 -config x509.genkey \ | |
d441108c | 185 | -outform DER -out signing_key.x509 \ |
07c449bb | 186 | -keyout signing_key.priv 2>&1 |
d441108c DH |
187 | @echo "###" |
188 | @echo "### Key pair generated." | |
189 | @echo "###" | |
190 | ||
191 | x509.genkey: | |
192 | @echo Generating X.509 key generation config | |
193 | @echo >x509.genkey "[ req ]" | |
194 | @echo >>x509.genkey "default_bits = 4096" | |
195 | @echo >>x509.genkey "distinguished_name = req_distinguished_name" | |
196 | @echo >>x509.genkey "prompt = no" | |
e7d113bc | 197 | @echo >>x509.genkey "string_mask = utf8only" |
d441108c DH |
198 | @echo >>x509.genkey "x509_extensions = myexts" |
199 | @echo >>x509.genkey | |
200 | @echo >>x509.genkey "[ req_distinguished_name ]" | |
9c4249c8 DH |
201 | @echo >>x509.genkey "#O = Unspecified company" |
202 | @echo >>x509.genkey "CN = Build time autogenerated kernel key" | |
203 | @echo >>x509.genkey "#emailAddress = unspecified.user@unspecified.company" | |
d441108c DH |
204 | @echo >>x509.genkey |
205 | @echo >>x509.genkey "[ myexts ]" | |
206 | @echo >>x509.genkey "basicConstraints=critical,CA:FALSE" | |
207 | @echo >>x509.genkey "keyUsage=digitalSignature" | |
208 | @echo >>x509.genkey "subjectKeyIdentifier=hash" | |
209 | @echo >>x509.genkey "authorityKeyIdentifier=keyid" | |
210 | endif |