| # SPDX-License-Identifier: GPL-2.0 |
| # |
| # Makefile for the linux kernel. |
| # |
| |
| ifdef CONFIG_FUNCTION_TRACER |
| |
| # Do not trace tracer code |
| CFLAGS_REMOVE_ftrace.o = $(CC_FLAGS_FTRACE) |
| |
| # Do not trace early setup code |
| CFLAGS_REMOVE_als.o = $(CC_FLAGS_FTRACE) |
| CFLAGS_REMOVE_early.o = $(CC_FLAGS_FTRACE) |
| |
| endif |
| |
| GCOV_PROFILE_als.o := n |
| GCOV_PROFILE_early.o := n |
| |
| KCOV_INSTRUMENT_als.o := n |
| KCOV_INSTRUMENT_early.o := n |
| |
| UBSAN_SANITIZE_als.o := n |
| UBSAN_SANITIZE_early.o := n |
| |
| # |
| # Use -march=z900 for als.c to be able to print an error |
| # message if the kernel is started on a machine which is too old |
| # |
| ifneq ($(CC_FLAGS_MARCH),-march=z900) |
| CFLAGS_REMOVE_als.o += $(CC_FLAGS_MARCH) |
| CFLAGS_REMOVE_als.o += $(CC_FLAGS_EXPOLINE) |
| CFLAGS_als.o += -march=z900 |
| AFLAGS_REMOVE_head.o += $(CC_FLAGS_MARCH) |
| AFLAGS_head.o += -march=z900 |
| endif |
| |
| # |
| # Passing null pointers is ok for smp code, since we access the lowcore here. |
| # |
| CFLAGS_smp.o := -Wno-nonnull |
| |
| # |
| # Disable tailcall optimizations for stack / callchain walking functions |
| # since this might generate broken code when accessing register 15 and |
| # passing its content to other functions. |
| # |
| CFLAGS_stacktrace.o += -fno-optimize-sibling-calls |
| CFLAGS_dumpstack.o += -fno-optimize-sibling-calls |
| |
| # |
| # Pass UTS_MACHINE for user_regset definition |
| # |
| CFLAGS_ptrace.o += -DUTS_MACHINE='"$(UTS_MACHINE)"' |
| |
| obj-y := traps.o time.o process.o base.o early.o setup.o idle.o vtime.o |
| obj-y += processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o nmi.o |
| obj-y += debug.o irq.o ipl.o dis.o diag.o vdso.o als.o |
| obj-y += sysinfo.o jump_label.o lgr.o os_info.o machine_kexec.o pgm_check.o |
| obj-y += runtime_instr.o cache.o fpu.o dumpstack.o guarded_storage.o |
| obj-y += entry.o reipl.o relocate_kernel.o kdebugfs.o alternative.o |
| obj-y += nospec-branch.o |
| |
| extra-y += head.o head64.o vmlinux.lds |
| |
| CFLAGS_REMOVE_nospec-branch.o += $(CC_FLAGS_EXPOLINE) |
| |
| obj-$(CONFIG_MODULES) += module.o |
| obj-$(CONFIG_SMP) += smp.o |
| obj-$(CONFIG_SCHED_TOPOLOGY) += topology.o |
| obj-$(CONFIG_HIBERNATION) += suspend.o swsusp.o |
| obj-$(CONFIG_AUDIT) += audit.o |
| compat-obj-$(CONFIG_AUDIT) += compat_audit.o |
| obj-$(CONFIG_COMPAT) += compat_linux.o compat_signal.o |
| obj-$(CONFIG_COMPAT) += compat_wrapper.o $(compat-obj-y) |
| obj-$(CONFIG_EARLY_PRINTK) += early_printk.o |
| obj-$(CONFIG_STACKTRACE) += stacktrace.o |
| obj-$(CONFIG_KPROBES) += kprobes.o |
| obj-$(CONFIG_FUNCTION_TRACER) += mcount.o ftrace.o |
| obj-$(CONFIG_CRASH_DUMP) += crash_dump.o |
| obj-$(CONFIG_UPROBES) += uprobes.o |
| |
| obj-$(CONFIG_PERF_EVENTS) += perf_event.o perf_cpum_cf.o perf_cpum_sf.o |
| obj-$(CONFIG_PERF_EVENTS) += perf_cpum_cf_events.o |
| |
| obj-$(CONFIG_TRACEPOINTS) += trace.o |
| |
| # vdso |
| obj-y += vdso64/ |
| obj-$(CONFIG_COMPAT) += vdso32/ |