1# SPDX-License-Identifier: GPL-2.0 2# 3# Makefile for the linux kernel. 4# 5 6CONTEXT_ANALYSIS := y 7 8ifdef CONFIG_FUNCTION_TRACER 9 10# Do not trace tracer code 11CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) 12 13# Do not trace early setup code 14CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE) 15CFLAGS_REMOVE_rethook.o = $(CC_FLAGS_FTRACE) 16CFLAGS_REMOVE_stacktrace.o = $(CC_FLAGS_FTRACE) 17CFLAGS_REMOVE_unwind_bc.o = $(CC_FLAGS_FTRACE) 18 19endif 20 21GCOV_PROFILE_early.o := n 22KCOV_INSTRUMENT_early.o := n 23UBSAN_SANITIZE_early.o := n 24KASAN_SANITIZE_ipl.o := n 25KASAN_SANITIZE_machine_kexec.o := n 26 27# 28# Passing null pointers is ok for smp code, since we access the lowcore here. 29# 30CFLAGS_smp.o := -Wno-nonnull 31 32# 33# Disable tailcall optimizations for stack / callchain walking functions 34# since this might generate broken code when accessing register 15 and 35# passing its content to other functions. 36# 37CFLAGS_stacktrace.o += -fno-optimize-sibling-calls 38CFLAGS_dumpstack.o += -fno-optimize-sibling-calls 39CFLAGS_unwind_bc.o += -fno-optimize-sibling-calls 40 41obj-y := head.o traps.o time.o process.o early.o setup.o idle.o vtime.o 42obj-y += processor.o syscall.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o 43obj-y += debug.o irq.o ipl.o dis.o vdso.o cpufeature.o 44obj-y += sysinfo.o lgr.o os_info.o ctlreg.o 45obj-y += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o sthyi.o 46obj-y += entry.o reipl.o kdebugfs.o alternative.o skey.o 47obj-y += nospec-branch.o ipl_vmparm.o machine_kexec_reloc.o unwind_bc.o 48obj-y += smp.o text_amode31.o stacktrace.o abs_lowcore.o facility.o uv.o wti.o 49obj-y += diag/ 50 51always-$(KBUILD_BUILTIN) += vmlinux.lds 52 53obj-$(CONFIG_SYSFS) += nospec-sysfs.o 54CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE) 55 56obj-$(CONFIG_SYSFS) += cpacf.o 57obj-$(CONFIG_MODULES) += module.o 58obj-$(CONFIG_SCHED_TOPOLOGY) += topology.o hiperdispatch.o 59obj-$(CONFIG_NUMA) += numa.o 60obj-$(CONFIG_AUDIT) += audit.o 61obj-$(CONFIG_EARLY_PRINTK) += early_printk.o 62obj-$(CONFIG_KPROBES) += kprobes.o 63obj-$(CONFIG_KPROBES) += mcount.o 64obj-$(CONFIG_RETHOOK) += rethook.o 65obj-$(CONFIG_FUNCTION_TRACER) += ftrace.o 66obj-$(CONFIG_FUNCTION_TRACER) += mcount.o 67obj-$(CONFIG_TRACING) += trace_clock.o 68obj-$(CONFIG_CRASH_DUMP) += crash_dump.o 69obj-$(CONFIG_KEXEC_CORE) += machine_kexec.o relocate_kernel.o 70obj-$(CONFIG_VMCORE_INFO) += vmcore_info.o 71obj-$(CONFIG_UPROBES) += uprobes.o 72obj-$(CONFIG_JUMP_LABEL) += jump_label.o 73obj-$(CONFIG_STACKPROTECTOR) += stackprotector.o 74obj-$(CONFIG_KEXEC_FILE) += machine_kexec_file.o kexec_image.o 75obj-$(CONFIG_KEXEC_FILE) += kexec_elf.o 76obj-$(CONFIG_CERT_STORE) += cert_store.o 77obj-$(CONFIG_KMSAN) += irqflags.o 78 79obj-$(CONFIG_PERF_EVENTS) += perf_event.o 80obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf.o perf_cpum_sf.o 81obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o perf_regs.o 82obj-$(CONFIG_PERF_EVENTS) += perf_pai.o 83 84obj-$(CONFIG_TRACEPOINTS) += trace.o 85 86obj-$(CONFIG_BPF_SYSCALL) += bpf.o 87 88# vdso 89obj-y += vdso/ 90