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 81obj-$(findstring y, $(CONFIG_PROTECTED_VIRTUALIZATION_GUEST) $(CONFIG_PGSTE)) += uv.o 82 83# vdso 84obj-y += vdso64/ 85