1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for the linux kernel.
6 ifdef CONFIG_FUNCTION_TRACER
8 # Do not trace tracer code
9 CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE)
11 # Do not trace early setup code
12 CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE)
13 CFLAGS_REMOVE_rethook.o = $(CC_FLAGS_FTRACE)
17 GCOV_PROFILE_early.o := n
18 KCOV_INSTRUMENT_early.o := n
19 UBSAN_SANITIZE_early.o := n
20 KASAN_SANITIZE_ipl.o := n
21 KASAN_SANITIZE_machine_kexec.o := n
24 # Passing null pointers is ok for smp code, since we access the lowcore here.
26 CFLAGS_smp.o := -Wno-nonnull
29 # Disable tailcall optimizations for stack / callchain walking functions
30 # since this might generate broken code when accessing register 15 and
31 # passing its content to other functions.
33 CFLAGS_stacktrace.o += -fno-optimize-sibling-calls
34 CFLAGS_dumpstack.o += -fno-optimize-sibling-calls
35 CFLAGS_unwind_bc.o += -fno-optimize-sibling-calls
37 obj-y := head64.o traps.o time.o process.o earlypgm.o early.o setup.o idle.o vtime.o
38 obj-y += processor.o syscall.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o
39 obj-y += debug.o irq.o ipl.o dis.o diag.o vdso.o cpufeature.o
40 obj-y += sysinfo.o lgr.o os_info.o machine_kexec.o
41 obj-y += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o sthyi.o
42 obj-y += entry.o reipl.o relocate_kernel.o kdebugfs.o alternative.o
43 obj-y += nospec-branch.o ipl_vmparm.o machine_kexec_reloc.o unwind_bc.o
44 obj-y += smp.o text_amode31.o stacktrace.o abs_lowcore.o
46 extra-y += vmlinux.lds
48 obj-$(CONFIG_SYSFS) += nospec-sysfs.o
49 CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE)
51 obj-$(CONFIG_MODULES) += module.o
52 obj-$(CONFIG_SCHED_TOPOLOGY) += topology.o
53 obj-$(CONFIG_NUMA) += numa.o
54 obj-$(CONFIG_AUDIT) += audit.o
55 compat-obj-$(CONFIG_AUDIT) += compat_audit.o
56 obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o
57 obj-$(CONFIG_COMPAT) += $(compat-obj-y)
58 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
59 obj-$(CONFIG_KPROBES) += kprobes.o
60 obj-$(CONFIG_KPROBES) += kprobes_insn_page.o
61 obj-$(CONFIG_KPROBES) += mcount.o
62 obj-$(CONFIG_RETHOOK) += rethook.o
63 obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o
64 obj-$(CONFIG_FUNCTION_TRACER) += mcount.o
65 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
66 obj-$(CONFIG_UPROBES) += uprobes.o
67 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
69 obj-$(CONFIG_KEXEC_FILE) += machine_kexec_file.o kexec_image.o
70 obj-$(CONFIG_KEXEC_FILE) += kexec_elf.o
72 obj-$(CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT) += ima_arch.o
74 obj-$(CONFIG_PERF_EVENTS) += perf_event.o
75 obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf.o perf_cpum_sf.o
76 obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o perf_regs.o
77 obj-$(CONFIG_PERF_EVENTS) += perf_pai_crypto.o perf_pai_ext.o
79 obj-$(CONFIG_TRACEPOINTS) += trace.o
80 obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o
84 obj-$(CONFIG_COMPAT) += vdso32/