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 += $(CC_FLAGS_MARCH) 38CFLAGS_sclp.o += -march=z900 39endif 40GCOV_PROFILE_sclp.o := n 41 42obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o 43obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o 44obj-y += debug.o irq.o ipl.o dis.o diag.o sclp.o vdso.o 45obj-y += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o 46obj-y += runtime_instr.o cache.o dumpstack.o 47obj-y += entry.o reipl.o relocate_kernel.o alternative.o 48obj-y += nospec-branch.o 49 50extra-y += head.o head64.o vmlinux.lds 51 52obj-$(CONFIG_SYSFS) += nospec-sysfs.o 53CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE) 54 55obj-$(CONFIG_MODULES) += s390_ksyms.o module.o 56obj-$(CONFIG_SMP) += smp.o 57obj-$(CONFIG_SCHED_BOOK) += topology.o 58obj-$(CONFIG_HIBERNATION) += suspend.o swsusp.o 59obj-$(CONFIG_AUDIT) += audit.o 60compat-obj-$(CONFIG_AUDIT) += compat_audit.o 61obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o 62obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y) 63 64obj-$(CONFIG_STACKTRACE) += stacktrace.o 65obj-$(CONFIG_KPROBES) += kprobes.o 66obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o 67obj-$(CONFIG_CRASH_DUMP) += crash_dump.o 68obj-$(CONFIG_UPROBES) += uprobes.o 69 70obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o 71obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o 72 73obj-$(CONFIG_TRACEPOINTS) += trace.o 74 75# vdso 76obj-y += vdso64/ 77obj-$(CONFIG_COMPAT) += vdso32/ 78