arch/s390/kernel/Makefile

   1 #
   2 # Makefile for the linux kernel.
   3 #
   4
   5 KCOV_INSTRUMENT_early.o := n
   6 KCOV_INSTRUMENT_sclp.o := n
   7 KCOV_INSTRUMENT_als.o := n
   8
   9 ifdef CONFIG_FUNCTION_TRACER
  10 # Don't trace early setup code and tracing code
  11 CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
  12 CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
  13 endif
  14
  15 #
  16 # Passing null pointers is ok for smp code, since we access the lowcore here.
  17 #
  18 CFLAGS_smp.o    := -Wno-nonnull
  19
  20 #
  21 # Disable tailcall optimizations for stack / callchain walking functions
  22 # since this might generate broken code when accessing register 15 and
  23 # passing its content to other functions.
  24 #
  25 CFLAGS_stacktrace.o     += -fno-optimize-sibling-calls
  26 CFLAGS_dumpstack.o      += -fno-optimize-sibling-calls
  27
  28 #
  29 # Pass UTS_MACHINE for user_regset definition
  30 #
  31 CFLAGS_ptrace.o         += -DUTS_MACHINE='"$(UTS_MACHINE)"'
  32
  33 CFLAGS_sysinfo.o += -w
  34
  35 #
  36 # Use -march=z900 for sclp.c and als.c to be able to print an error
  37 # message if the kernel is started on a machine which is too old
  38 #
  39 CFLAGS_REMOVE_sclp.o = $(CC_FLAGS_FTRACE)
  40 CFLAGS_REMOVE_als.o = $(CC_FLAGS_FTRACE)
  41 ifneq ($(CC_FLAGS_MARCH),-march=z900)
  42 CFLAGS_REMOVE_sclp.o    += $(CC_FLAGS_MARCH)
  43 CFLAGS_sclp.o           += -march=z900
  44 CFLAGS_REMOVE_als.o     += $(CC_FLAGS_MARCH)
  45 CFLAGS_REMOVE_als.o     += $(CC_FLAGS_EXPOLINE)
  46 CFLAGS_als.o            += -march=z900
  47 AFLAGS_REMOVE_head.o    += $(CC_FLAGS_MARCH)
  48 AFLAGS_head.o           += -march=z900
  49 endif
  50 GCOV_PROFILE_sclp.o := n
  51 GCOV_PROFILE_als.o := n
  52 UBSAN_SANITIZE_als.o := n
  53 UBSAN_SANITIZE_early.o := n
  54 UBSAN_SANITIZE_sclp.o := n
  55
  56 obj-y   := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
  57 obj-y   += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
  58 obj-y   += debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o als.o
  59 obj-y   += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
  60 obj-y   += runtime_instr.o cache.o fpu.o dumpstack.o
  61 obj-y   += entry.o reipl.o relocate_kernel.o alternative.o
  62 obj-y   += nospec-branch.o
  63
  64 extra-y                         += head.o head64.o vmlinux.lds
  65
  66 obj-$(CONFIG_SYSFS)             += nospec-sysfs.o
  67 CFLAGS_REMOVE_nospec-branch.o   += $(CC_FLAGS_EXPOLINE)
  68
  69 obj-$(CONFIG_MODULES)           += module.o
  70 obj-$(CONFIG_SMP)               += smp.o
  71 obj-$(CONFIG_SCHED_TOPOLOGY)    += topology.o
  72 obj-$(CONFIG_HIBERNATION)       += suspend.o swsusp.o
  73 obj-$(CONFIG_AUDIT)             += audit.o
  74 compat-obj-$(CONFIG_AUDIT)      += compat_audit.o
  75 obj-$(CONFIG_COMPAT)            += compat_linux.o compat_signal.o
  76 obj-$(CONFIG_COMPAT)            += compat_wrapper.o $(compat-obj-y)
  77
  78 obj-$(CONFIG_STACKTRACE)        += stacktrace.o
  79 obj-$(CONFIG_KPROBES)           += kprobes.o
  80 obj-$(CONFIG_FUNCTION_TRACER)   += mcount.o ftrace.o
  81 obj-$(CONFIG_CRASH_DUMP)        += crash_dump.o
  82 obj-$(CONFIG_UPROBES)           += uprobes.o
  83
  84 obj-$(CONFIG_PERF_EVENTS)       += perf_event.o perf_cpum_cf.o perf_cpum_sf.o
  85 obj-$(CONFIG_PERF_EVENTS)       += perf_cpum_cf_events.o
  86
  87 obj-$(CONFIG_TRACEPOINTS)       += trace.o
  88
  89 # vdso
  90 obj-y                           += vdso64/
  91 obj-$(CONFIG_COMPAT)            += vdso32/