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

 
 1#
 2# Makefile for the linux kernel.
 3#
 4
 5ifdef CONFIG_FUNCTION_TRACER
 6
 7# Do not trace tracer code
 8CFLAGS_REMOVE_ftrace.o	= $(CC_FLAGS_FTRACE)
 9
10# Do not trace early setup code
11CFLAGS_REMOVE_als.o	= $(CC_FLAGS_FTRACE)
12CFLAGS_REMOVE_early.o	= $(CC_FLAGS_FTRACE)
13CFLAGS_REMOVE_sclp.o	= $(CC_FLAGS_FTRACE)
14
15endif
16
17GCOV_PROFILE_als.o	:= n
18GCOV_PROFILE_early.o	:= n
19GCOV_PROFILE_sclp.o	:= n
20
21KCOV_INSTRUMENT_als.o	:= n
22KCOV_INSTRUMENT_early.o	:= n
23KCOV_INSTRUMENT_sclp.o	:= n
24
25UBSAN_SANITIZE_als.o	:= n
26UBSAN_SANITIZE_early.o	:= n
27UBSAN_SANITIZE_sclp.o	:= n
28
29#
30# Use -march=z900 for sclp.c and als.c to be able to print an error
31# message if the kernel is started on a machine which is too old
32#
33ifneq ($(CC_FLAGS_MARCH),-march=z900)
34CFLAGS_REMOVE_als.o	+= $(CC_FLAGS_MARCH)
35CFLAGS_als.o		+= -march=z900
36CFLAGS_REMOVE_sclp.o	+= $(CC_FLAGS_MARCH)
37CFLAGS_sclp.o		+= -march=z900
38AFLAGS_REMOVE_head.o	+= $(CC_FLAGS_MARCH)
39AFLAGS_head.o		+= -march=z900
40endif
41
42#
43# Passing null pointers is ok for smp code, since we access the lowcore here.
44#
45CFLAGS_smp.o		:= -Wno-nonnull
46
47#
48# Disable tailcall optimizations for stack / callchain walking functions
49# since this might generate broken code when accessing register 15 and
50# passing its content to other functions.
51#
52CFLAGS_stacktrace.o	+= -fno-optimize-sibling-calls
53CFLAGS_dumpstack.o	+= -fno-optimize-sibling-calls
 
54
55#
56# Pass UTS_MACHINE for user_regset definition
57#
58CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
59
60CFLAGS_sysinfo.o	+= -w
61
62obj-y	:= traps.o time.o process.o base.o early.o setup.o idle.o vtime.o
63obj-y	+= processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
64obj-y	+= debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o als.o
65obj-y	+= sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o
66obj-y	+= runtime_instr.o cache.o fpu.o dumpstack.o
67obj-y	+= entry.o reipl.o relocate_kernel.o
 
 
 
 
68
69extra-y				+= head.o head64.o vmlinux.lds
 
70
71obj-$(CONFIG_MODULES)		+= module.o
72obj-$(CONFIG_SMP)		+= smp.o
73obj-$(CONFIG_SCHED_TOPOLOGY)	+= topology.o
74obj-$(CONFIG_HIBERNATION)	+= suspend.o swsusp.o
75obj-$(CONFIG_AUDIT)		+= audit.o
76compat-obj-$(CONFIG_AUDIT)	+= compat_audit.o
77obj-$(CONFIG_COMPAT)		+= compat_linux.o compat_signal.o
78obj-$(CONFIG_COMPAT)		+= compat_wrapper.o $(compat-obj-y)
79
80obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
81obj-$(CONFIG_KPROBES)		+= kprobes.o
82obj-$(CONFIG_FUNCTION_TRACER)	+= mcount.o ftrace.o
83obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
84obj-$(CONFIG_UPROBES)		+= uprobes.o
 
 
 
 
 
 
85
86obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o perf_cpum_cf.o perf_cpum_sf.o
87obj-$(CONFIG_PERF_EVENTS)	+= perf_cpum_cf_events.o
 
 
88
89obj-$(CONFIG_TRACEPOINTS)	+= trace.o
90
91# vdso
92obj-y				+= vdso64
93obj-$(CONFIG_COMPAT)		+= vdso32