arch/s390/kernel/Makefile

   1 # SPDX-License-Identifier: GPL-2.0
   2 #
   3 # Makefile for the linux kernel.
   4 #
   5
   6 ifdef CONFIG_FUNCTION_TRACER
   7
   8 # Do not trace tracer code
   9 CFLAGS_REMOVE_ftrace.o  = $(CC_FLAGS_FTRACE)
  10
  11 # Do not trace early setup code
  12 CFLAGS_REMOVE_als.o     = $(CC_FLAGS_FTRACE)
  13 CFLAGS_REMOVE_early.o   = $(CC_FLAGS_FTRACE)
  14
  15 endif
  16
  17 GCOV_PROFILE_als.o      := n
  18 GCOV_PROFILE_early.o    := n
  19
  20 KCOV_INSTRUMENT_als.o   := n
  21 KCOV_INSTRUMENT_early.o := n
  22
  23 UBSAN_SANITIZE_als.o    := n
  24 UBSAN_SANITIZE_early.o  := n
  25
  26 #
  27 # Use -march=z900 for als.c to be able to print an error
  28 # message if the kernel is started on a machine which is too old
  29 #
  30 ifneq ($(CC_FLAGS_MARCH),-march=z900)
  31 CFLAGS_REMOVE_als.o     += $(CC_FLAGS_MARCH)
  32 CFLAGS_als.o            += -march=z900
  33 AFLAGS_REMOVE_head.o    += $(CC_FLAGS_MARCH)
  34 AFLAGS_head.o           += -march=z900
  35 endif
  36
  37 #
  38 # Passing null pointers is ok for smp code, since we access the lowcore here.
  39 #
  40 CFLAGS_smp.o            := -Wno-nonnull
  41
  42 #
  43 # Disable tailcall optimizations for stack / callchain walking functions
  44 # since this might generate broken code when accessing register 15 and
  45 # passing its content to other functions.
  46 #
  47 CFLAGS_stacktrace.o     += -fno-optimize-sibling-calls
  48 CFLAGS_dumpstack.o      += -fno-optimize-sibling-calls
  49
  50 #
  51 # Pass UTS_MACHINE for user_regset definition
  52 #
  53 CFLAGS_ptrace.o         += -DUTS_MACHINE='"$(UTS_MACHINE)"'
  54
  55 obj-y   := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
  56 obj-y   += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
  57 obj-y   += debug.o irq.o ipl.o dis.o diag.o vdso.o als.o
  58 obj-y   += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
  59 obj-y   += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o
  60 obj-y   += entry.o reipl.o relocate_kernel.o kdebugfs.o
  61
  62 extra-y                         += head.o head64.o vmlinux.lds
  63
  64 obj-$(CONFIG_MODULES)           += module.o
  65 obj-$(CONFIG_SMP)               += smp.o
  66 obj-$(CONFIG_SCHED_TOPOLOGY)    += topology.o
  67 obj-$(CONFIG_HIBERNATION)       += suspend.o swsusp.o
  68 obj-$(CONFIG_AUDIT)             += audit.o
  69 compat-obj-$(CONFIG_AUDIT)      += compat_audit.o
  70 obj-$(CONFIG_COMPAT)            += compat_linux.o compat_signal.o
  71 obj-$(CONFIG_COMPAT)            += compat_wrapper.o $(compat-obj-y)
  72 obj-$(CONFIG_EARLY_PRINTK)      += early_printk.o
  73 obj-$(CONFIG_STACKTRACE)        += stacktrace.o
  74 obj-$(CONFIG_KPROBES)           += kprobes.o
  75 obj-$(CONFIG_FUNCTION_TRACER)   += mcount.o ftrace.o
  76 obj-$(CONFIG_CRASH_DUMP)        += crash_dump.o
  77 obj-$(CONFIG_UPROBES)           += uprobes.o
  78
  79 obj-$(CONFIG_PERF_EVENTS)       += perf_event.o perf_cpum_cf.o perf_cpum_sf.o
  80 obj-$(CONFIG_PERF_EVENTS)       += perf_cpum_cf_events.o
  81
  82 obj-$(CONFIG_TRACEPOINTS)       += trace.o
  83
  84 # vdso
  85 obj-y                           += vdso64/
  86 obj-$(CONFIG_COMPAT)            += vdso32/