#
  # Makefile for the linux kernel.
  #

  obj-y     = fork.o exec_domain.o panic.o printk.o \

  	    cpu.o exit.o itimer.o time.o softirq.o resource.o \

  	    sysctl.o sysctl_binary.o capability.o ptrace.o timer.o user.o \

  	    signal.o sys.o kmod.o workqueue.o pid.o task_work.o \

  	    rcupdate.o extable.o params.o posix-timers.o \

  	    kthread.o wait.o sys_ni.o posix-cpu-timers.o mutex.o \

  	    hrtimer.o rwsem.o nsproxy.o srcu.o semaphore.o \

  	    notifier.o ksysfs.o cred.o \

  	    async.o range.o groups.o lglock.o smpboot.o

  ifdef CONFIG_FUNCTION_TRACER

  # Do not trace debug files and internal ftrace files
  CFLAGS_REMOVE_lockdep.o = -pg
  CFLAGS_REMOVE_lockdep_proc.o = -pg
  CFLAGS_REMOVE_mutex-debug.o = -pg
  CFLAGS_REMOVE_rtmutex-debug.o = -pg
  CFLAGS_REMOVE_cgroup-debug.o = -pg

  CFLAGS_REMOVE_irq_work.o = -pg

  endif

  obj-y += sched/

  obj-y += power/

  obj-y += cpu/

  obj-$(CONFIG_CHECKPOINT_RESTORE) += kcmp.o

  obj-$(CONFIG_FREEZER) += freezer.o

  obj-$(CONFIG_PROFILING) += profile.o

  obj-$(CONFIG_STACKTRACE) += stacktrace.o

  obj-y += time/

  obj-$(CONFIG_DEBUG_MUTEXES) += mutex-debug.o

  obj-$(CONFIG_LOCKDEP) += lockdep.o

  ifeq ($(CONFIG_PROC_FS),y)
  obj-$(CONFIG_LOCKDEP) += lockdep_proc.o
  endif

  obj-$(CONFIG_FUTEX) += futex.o

  ifeq ($(CONFIG_COMPAT),y)
  obj-$(CONFIG_FUTEX) += futex_compat.o
  endif

  obj-$(CONFIG_RT_MUTEXES) += rtmutex.o

  obj-$(CONFIG_DEBUG_RT_MUTEXES) += rtmutex-debug.o

  obj-$(CONFIG_RT_MUTEX_TESTER) += rtmutex-tester.o

  obj-$(CONFIG_GENERIC_ISA_DMA) += dma.o

  obj-$(CONFIG_SMP) += smp.o

  ifneq ($(CONFIG_SMP),y)

  obj-y += up.o
  endif

  obj-$(CONFIG_SMP) += spinlock.o

  obj-$(CONFIG_DEBUG_SPINLOCK) += spinlock.o

  obj-$(CONFIG_PROVE_LOCKING) += spinlock.o

  obj-$(CONFIG_UID16) += uid16.o
  obj-$(CONFIG_MODULES) += module.o

  obj-$(CONFIG_MODULE_SIG) += module_signing.o modsign_pubkey.o modsign_certificate.o

  obj-$(CONFIG_KALLSYMS) += kallsyms.o

  obj-$(CONFIG_BSD_PROCESS_ACCT) += acct.o

  obj-$(CONFIG_KEXEC) += kexec.o

  obj-$(CONFIG_BACKTRACE_SELF_TEST) += backtracetest.o

  obj-$(CONFIG_COMPAT) += compat.o

  obj-$(CONFIG_CGROUPS) += cgroup.o

  obj-$(CONFIG_CGROUP_FREEZER) += cgroup_freezer.o

  obj-$(CONFIG_CPUSETS) += cpuset.o

  obj-$(CONFIG_UTS_NS) += utsname.o
  obj-$(CONFIG_USER_NS) += user_namespace.o

  obj-$(CONFIG_PID_NS) += pid_namespace.o

  obj-$(CONFIG_IKCONFIG) += configs.o

  obj-$(CONFIG_RESOURCE_COUNTERS) += res_counter.o

  obj-$(CONFIG_SMP) += stop_machine.o

  obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o

  obj-$(CONFIG_AUDIT) += audit.o auditfilter.o

  obj-$(CONFIG_AUDITSYSCALL) += auditsc.o

  obj-$(CONFIG_AUDIT_WATCH) += audit_watch.o

  obj-$(CONFIG_AUDIT_TREE) += audit_tree.o

  obj-$(CONFIG_GCOV_KERNEL) += gcov/

  obj-$(CONFIG_KPROBES) += kprobes.o

  obj-$(CONFIG_KGDB) += debug/

  obj-$(CONFIG_DETECT_HUNG_TASK) += hung_task.o

  obj-$(CONFIG_LOCKUP_DETECTOR) += watchdog.o

  obj-$(CONFIG_GENERIC_HARDIRQS) += irq/
  obj-$(CONFIG_SECCOMP) += seccomp.o

  obj-$(CONFIG_RCU_TORTURE_TEST) += rcutorture.o

  obj-$(CONFIG_TREE_RCU) += rcutree.o

  obj-$(CONFIG_TREE_PREEMPT_RCU) += rcutree.o

  obj-$(CONFIG_TREE_RCU_TRACE) += rcutree_trace.o

  obj-$(CONFIG_TINY_RCU) += rcutiny.o

  obj-$(CONFIG_TINY_PREEMPT_RCU) += rcutiny.o

  obj-$(CONFIG_RELAY) += relay.o

  obj-$(CONFIG_SYSCTL) += utsname_sysctl.o

  obj-$(CONFIG_TASK_DELAY_ACCT) += delayacct.o

  obj-$(CONFIG_TASKSTATS) += taskstats.o tsacct.o

  obj-$(CONFIG_TRACEPOINTS) += tracepoint.o

  obj-$(CONFIG_LATENCYTOP) += latencytop.o

  obj-$(CONFIG_BINFMT_ELF) += elfcore.o
  obj-$(CONFIG_COMPAT_BINFMT_ELF) += elfcore.o
  obj-$(CONFIG_BINFMT_ELF_FDPIC) += elfcore.o

  obj-$(CONFIG_FUNCTION_TRACER) += trace/

  obj-$(CONFIG_TRACING) += trace/

  obj-$(CONFIG_TRACE_CLOCK) += trace/

  obj-$(CONFIG_RING_BUFFER) += trace/

  obj-$(CONFIG_TRACEPOINTS) += trace/

  obj-$(CONFIG_IRQ_WORK) += irq_work.o

  obj-$(CONFIG_CPU_PM) += cpu_pm.o

  
  obj-$(CONFIG_PERF_EVENTS) += events/

  obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o

  obj-$(CONFIG_PADATA) += padata.o

  obj-$(CONFIG_CRASH_DUMP) += crash_dump.o

  obj-$(CONFIG_JUMP_LABEL) += jump_label.o

  obj-$(CONFIG_CONTEXT_TRACKING) += context_tracking.o

  $(obj)/configs.o: $(obj)/config_data.h
  
  # config_data.h contains the same information as ikconfig.h but gzipped.
  # Info from config_data can be extracted from /proc/config*
  targets += config_data.gz

  $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE

  	$(call if_changed,gzip)

        filechk_ikconfiggz = (echo "static const char kernel_config_data[] __used = MAGIC_START"; cat $< | scripts/bin2c; echo "MAGIC_END;")

  targets += config_data.h
  $(obj)/config_data.h: $(obj)/config_data.gz FORCE

  	$(call filechk,ikconfiggz)

  
  $(obj)/time.o: $(obj)/timeconst.h

  quiet_cmd_hzfile = HZFILE  $@
        cmd_hzfile = echo "hz=$(CONFIG_HZ)" > $@
  
  targets += hz.bc
  $(obj)/hz.bc: $(objtree)/include/config/hz.h FORCE
  	$(call if_changed,hzfile)
  
  quiet_cmd_bc  = BC      $@
        cmd_bc  = bc -q $(filter-out FORCE,$^) > $@

  targets += timeconst.h

  $(obj)/timeconst.h: $(obj)/hz.bc $(src)/timeconst.bc FORCE
  	$(call if_changed,bc)

  
  ifeq ($(CONFIG_MODULE_SIG),y)

  #
  # Pull the signing certificate and any extra certificates into the kernel
  #

  
  quiet_cmd_touch = TOUCH   $@
        cmd_touch = touch   $@

  extra_certificates:

  	$(call cmd,touch)

  kernel/modsign_certificate.o: signing_key.x509 extra_certificates

  
  ###############################################################################
  #
  # If module signing is requested, say by allyesconfig, but a key has not been
  # supplied, then one will need to be generated to make sure the build does not
  # fail and that the kernel may be used afterwards.
  #
  ###############################################################################

  ifndef CONFIG_MODULE_SIG_HASH

  $(error Could not determine digest type to use from kernel config)
  endif

  signing_key.priv signing_key.x509: x509.genkey
  	@echo "###"
  	@echo "### Now generating an X.509 key pair to be used for signing modules."
  	@echo "###"
  	@echo "### If this takes a long time, you might wish to run rngd in the"
  	@echo "### background to keep the supply of entropy topped up.  It"

  	@echo "### needs to be run as root, and uses a hardware random"
  	@echo "### number generator if one is available."

  	@echo "###"

  	openssl req -new -nodes -utf8 -$(CONFIG_MODULE_SIG_HASH) -days 36500 \
  		-batch -x509 -config x509.genkey \

  		-outform DER -out signing_key.x509 \

  		-keyout signing_key.priv 2>&1

  	@echo "###"
  	@echo "### Key pair generated."
  	@echo "###"
  
  x509.genkey:
  	@echo Generating X.509 key generation config
  	@echo  >x509.genkey "[ req ]"
  	@echo >>x509.genkey "default_bits = 4096"
  	@echo >>x509.genkey "distinguished_name = req_distinguished_name"
  	@echo >>x509.genkey "prompt = no"

  	@echo >>x509.genkey "string_mask = utf8only"

  	@echo >>x509.genkey "x509_extensions = myexts"
  	@echo >>x509.genkey
  	@echo >>x509.genkey "[ req_distinguished_name ]"
  	@echo >>x509.genkey "O = Magrathea"
  	@echo >>x509.genkey "CN = Glacier signing key"
  	@echo >>x509.genkey "emailAddress = slartibartfast@magrathea.h2g2"
  	@echo >>x509.genkey
  	@echo >>x509.genkey "[ myexts ]"
  	@echo >>x509.genkey "basicConstraints=critical,CA:FALSE"
  	@echo >>x509.genkey "keyUsage=digitalSignature"
  	@echo >>x509.genkey "subjectKeyIdentifier=hash"
  	@echo >>x509.genkey "authorityKeyIdentifier=keyid"
  endif