The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/kernel/Makefile

Version: -  FREEBSD  -  FREEBSD-13-STABLE  -  FREEBSD-13-0  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  l41  -  OPENBSD  -  linux-2.6  -  MK84  -  PLAN9  -  xnu-8792 
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    1 #
    2 # Makefile for the linux kernel.
    3 #
    4 
    5 obj-y     = fork.o exec_domain.o panic.o printk.o \
    6             cpu.o exit.o itimer.o time.o softirq.o resource.o \
    7             sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \
    8             signal.o sys.o kmod.o workqueue.o pid.o task_work.o \
    9             rcupdate.o extable.o params.o posix-timers.o \
   10             kthread.o wait.o kfifo.o sys_ni.o posix-cpu-timers.o mutex.o \
   11             hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \
   12             notifier.o ksysfs.o cred.o \
   13             async.o range.o groups.o lglock.o smpboot.o
   14 
   15 ifdef CONFIG_FUNCTION_TRACER
   16 # Do not trace debug files and internal ftrace files
   17 CFLAGS_REMOVE_lockdep.o = -pg
   18 CFLAGS_REMOVE_lockdep_proc.o = -pg
   19 CFLAGS_REMOVE_mutex-debug.o = -pg
   20 CFLAGS_REMOVE_rtmutex-debug.o = -pg
   21 CFLAGS_REMOVE_cgroup-debug.o = -pg
   22 CFLAGS_REMOVE_irq_work.o = -pg
   23 endif
   24 
   25 obj-y += sched/
   26 obj-y += power/
   27 
   28 ifeq ($(CONFIG_CHECKPOINT_RESTORE),y)
   29 obj-$(CONFIG_X86) += kcmp.o
   30 endif
   31 obj-$(CONFIG_FREEZER) += freezer.o
   32 obj-$(CONFIG_PROFILING) += profile.o
   33 obj-$(CONFIG_STACKTRACE) += stacktrace.o
   34 obj-y += time/
   35 obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o
   36 obj-$(CONFIG_LOCKDEP) += lockdep.o
   37 ifeq ($(CONFIG_PROC_FS),y)
   38 obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
   39 endif
   40 obj-$(CONFIG_FUTEX) += futex.o
   41 ifeq ($(CONFIG_COMPAT),y)
   42 obj-$(CONFIG_FUTEX) += futex_compat.o
   43 endif
   44 obj-$(CONFIG_RT_MUTEXES) += rtmutex.o
   45 obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o
   46 obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o
   47 obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o
   48 obj-$(CONFIG_SMP) += smp.o
   49 ifneq ($(CONFIG_SMP),y)
   50 obj-y += up.o
   51 endif
   52 obj-$(CONFIG_SMP) += spinlock.o
   53 obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o
   54 obj-$(CONFIG_PROVE_LOCKING) += spinlock.o
   55 obj-$(CONFIG_UID16) += uid16.o
   56 obj-$(CONFIG_MODULES) += module.o
   57 obj-$(CONFIG_MODULE_SIG) += module_signing.o modsign_pubkey.o modsign_certificate.o
   58 obj-$(CONFIG_KALLSYMS) += kallsyms.o
   59 obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o
   60 obj-$(CONFIG_KEXEC) += kexec.o
   61 obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o
   62 obj-$(CONFIG_COMPAT) += compat.o
   63 obj-$(CONFIG_CGROUPS) += cgroup.o
   64 obj-$(CONFIG_CGROUP_FREEZER) += cgroup_freezer.o
   65 obj-$(CONFIG_CPUSETS) += cpuset.o
   66 obj-$(CONFIG_UTS_NS) += utsname.o
   67 obj-$(CONFIG_USER_NS) += user_namespace.o
   68 obj-$(CONFIG_PID_NS) += pid_namespace.o
   69 obj-$(CONFIG_IKCONFIG) += configs.o
   70 obj-$(CONFIG_RESOURCE_COUNTERS) += res_counter.o
   71 obj-$(CONFIG_SMP) += stop_machine.o
   72 obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
   73 obj-$(CONFIG_AUDIT) += audit.o auditfilter.o
   74 obj-$(CONFIG_AUDITSYSCALL) += auditsc.o
   75 obj-$(CONFIG_AUDIT_WATCH) += audit_watch.o
   76 obj-$(CONFIG_AUDIT_TREE) += audit_tree.o
   77 obj-$(CONFIG_GCOV_KERNEL) += gcov/
   78 obj-$(CONFIG_KPROBES) += kprobes.o
   79 obj-$(CONFIG_KGDB) += debug/
   80 obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o
   81 obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o
   82 obj-$(CONFIG_GENERIC_HARDIRQS) += irq/
   83 obj-$(CONFIG_SECCOMP) += seccomp.o
   84 obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o
   85 obj-$(CONFIG_TREE_RCU) += rcutree.o
   86 obj-$(CONFIG_TREE_PREEMPT_RCU) += rcutree.o
   87 obj-$(CONFIG_TREE_RCU_TRACE) += rcutree_trace.o
   88 obj-$(CONFIG_TINY_RCU) += rcutiny.o
   89 obj-$(CONFIG_TINY_PREEMPT_RCU) += rcutiny.o
   90 obj-$(CONFIG_RELAY) += relay.o
   91 obj-$(CONFIG_SYSCTL) += utsname_sysctl.o
   92 obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o
   93 obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o
   94 obj-$(CONFIG_TRACEPOINTS) += tracepoint.o
   95 obj-$(CONFIG_LATENCYTOP) += latencytop.o
   96 obj-$(CONFIG_BINFMT_ELF) += elfcore.o
   97 obj-$(CONFIG_COMPAT_BINFMT_ELF) += elfcore.o
   98 obj-$(CONFIG_BINFMT_ELF_FDPIC) += elfcore.o
   99 obj-$(CONFIG_FUNCTION_TRACER) += trace/
  100 obj-$(CONFIG_TRACING) += trace/
  101 obj-$(CONFIG_TRACE_CLOCK) += trace/
  102 obj-$(CONFIG_RING_BUFFER) += trace/
  103 obj-$(CONFIG_TRACEPOINTS) += trace/
  104 obj-$(CONFIG_IRQ_WORK) += irq_work.o
  105 obj-$(CONFIG_CPU_PM) += cpu_pm.o
  106 
  107 obj-$(CONFIG_PERF_EVENTS) += events/
  108 
  109 obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o
  110 obj-$(CONFIG_PADATA) += padata.o
  111 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
  112 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
  113 obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o
  114 
  115 $(obj)/configs.o: $(obj)/config_data.h
  116 
  117 # config_data.h contains the same information as ikconfig.h but gzipped.
  118 # Info from config_data can be extracted from /proc/config*
  119 targets += config_data.gz
  120 $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE
  121         $(call if_changed,gzip)
  122 
  123       filechk_ikconfiggz = (echo "static const char kernel_config_data[] __used = MAGIC_START"; cat $< | scripts/bin2c; echo "MAGIC_END;")
  124 targets += config_data.h
  125 $(obj)/config_data.h: $(obj)/config_data.gz FORCE
  126         $(call filechk,ikconfiggz)
  127 
  128 $(obj)/time.o: $(obj)/timeconst.h
  129 
  130 quiet_cmd_timeconst  = TIMEC   $@
  131       cmd_timeconst  = $(PERL) $< $(CONFIG_HZ) > $@
  132 targets += timeconst.h
  133 $(obj)/timeconst.h: $(src)/timeconst.pl FORCE
  134         $(call if_changed,timeconst)
  135 
  136 ifeq ($(CONFIG_MODULE_SIG),y)
  137 #
  138 # Pull the signing certificate and any extra certificates into the kernel
  139 #
  140 
  141 quiet_cmd_touch = TOUCH   $@
  142       cmd_touch = touch   $@
  143 
  144 extra_certificates:
  145         $(call cmd,touch)
  146 
  147 kernel/modsign_certificate.o: signing_key.x509 extra_certificates
  148 
  149 ###############################################################################
  150 #
  151 # If module signing is requested, say by allyesconfig, but a key has not been
  152 # supplied, then one will need to be generated to make sure the build does not
  153 # fail and that the kernel may be used afterwards.
  154 #
  155 ###############################################################################
  156 sign_key_with_hash :=
  157 ifeq ($(CONFIG_MODULE_SIG_SHA1),y)
  158 sign_key_with_hash := -sha1
  159 endif
  160 ifeq ($(CONFIG_MODULE_SIG_SHA224),y)
  161 sign_key_with_hash := -sha224
  162 endif
  163 ifeq ($(CONFIG_MODULE_SIG_SHA256),y)
  164 sign_key_with_hash := -sha256
  165 endif
  166 ifeq ($(CONFIG_MODULE_SIG_SHA384),y)
  167 sign_key_with_hash := -sha384
  168 endif
  169 ifeq ($(CONFIG_MODULE_SIG_SHA512),y)
  170 sign_key_with_hash := -sha512
  171 endif
  172 ifeq ($(sign_key_with_hash),)
  173 $(error Could not determine digest type to use from kernel config)
  174 endif
  175 
  176 signing_key.priv signing_key.x509: x509.genkey
  177         @echo "###"
  178         @echo "### Now generating an X.509 key pair to be used for signing modules."
  179         @echo "###"
  180         @echo "### If this takes a long time, you might wish to run rngd in the"
  181         @echo "### background to keep the supply of entropy topped up.  It"
  182         @echo "### needs to be run as root, and uses a hardware random"
  183         @echo "### number generator if one is available."
  184         @echo "###"
  185         openssl req -new -nodes -utf8 $(sign_key_with_hash) -days 36500 -batch \
  186                 -x509 -config x509.genkey \
  187                 -outform DER -out signing_key.x509 \
  188                 -keyout signing_key.priv
  189         @echo "###"
  190         @echo "### Key pair generated."
  191         @echo "###"
  192 
  193 x509.genkey:
  194         @echo Generating X.509 key generation config
  195         @echo  >x509.genkey "[ req ]"
  196         @echo >>x509.genkey "default_bits = 4096"
  197         @echo >>x509.genkey "distinguished_name = req_distinguished_name"
  198         @echo >>x509.genkey "prompt = no"
  199         @echo >>x509.genkey "string_mask = utf8only"
  200         @echo >>x509.genkey "x509_extensions = myexts"
  201         @echo >>x509.genkey
  202         @echo >>x509.genkey "[ req_distinguished_name ]"
  203         @echo >>x509.genkey "O = Magrathea"
  204         @echo >>x509.genkey "CN = Glacier signing key"
  205         @echo >>x509.genkey "emailAddress = slartibartfast@magrathea.h2g2"
  206         @echo >>x509.genkey
  207         @echo >>x509.genkey "[ myexts ]"
  208         @echo >>x509.genkey "basicConstraints=critical,CA:FALSE"
  209         @echo >>x509.genkey "keyUsage=digitalSignature"
  210         @echo >>x509.genkey "subjectKeyIdentifier=hash"
  211         @echo >>x509.genkey "authorityKeyIdentifier=keyid"
  212 endif

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