projects/linux·blob master · refs

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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/