1#
2# Makefile for the linux kernel.
3#
4
5ifdef CONFIG_FUNCTION_TRACER
6# Don't trace early setup code and tracing code
7CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
8CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
9endif
10
11#
12# Passing null pointers is ok for smp code, since we access the lowcore here.
13#
14CFLAGS_smp.o	:= -Wno-nonnull
15
16#
17# Disable tailcall optimizations for stack / callchain walking functions
18# since this might generate broken code when accessing register 15 and
19# passing its content to other functions.
20#
21CFLAGS_stacktrace.o	+= -fno-optimize-sibling-calls
22CFLAGS_dumpstack.o	+= -fno-optimize-sibling-calls
23
24#
25# Pass UTS_MACHINE for user_regset definition
26#
27CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
28
29CFLAGS_sysinfo.o += -w
30
31#
32# Use -march=z900 for sclp.c to be able to print an error message if
33# the kernel is started on a machine which is too old
34#
35CFLAGS_REMOVE_sclp.o = $(CC_FLAGS_FTRACE)
36ifneq ($(CC_FLAGS_MARCH),-march=z900)
37CFLAGS_REMOVE_sclp.o += $(CC_FLAGS_MARCH)
38CFLAGS_sclp.o	+= -march=z900
39endif
40GCOV_PROFILE_sclp.o := n
41
42obj-y	:= traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
43obj-y	+= processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
44obj-y	+= debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o
45obj-y	+= sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
46obj-y	+= runtime_instr.o cache.o dumpstack.o
47obj-y	+= entry.o reipl.o relocate_kernel.o
48
49extra-y				+= head.o head64.o vmlinux.lds
50
51obj-$(CONFIG_MODULES)		+= s390_ksyms.o module.o
52obj-$(CONFIG_SMP)		+= smp.o
53obj-$(CONFIG_SCHED_BOOK)	+= topology.o
54obj-$(CONFIG_HIBERNATION)	+= suspend.o swsusp.o
55obj-$(CONFIG_AUDIT)		+= audit.o
56compat-obj-$(CONFIG_AUDIT)	+= compat_audit.o
57obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o
58obj-$(CONFIG_COMPAT)		+= compat_wrapper.o $(compat-obj-y)
59
60obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
61obj-$(CONFIG_KPROBES)		+= kprobes.o
62obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
63obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
64obj-$(CONFIG_UPROBES)		+= uprobes.o
65
66obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_cpum_cf.o perf_cpum_sf.o
67obj-$(CONFIG_PERF_EVENTS)	+= perf_cpum_cf_events.o
68
69obj-$(CONFIG_TRACEPOINTS)	+= trace.o
70
71# vdso
72obj-y				+= vdso64/
73obj-$(CONFIG_COMPAT)		+= vdso32/
74