projects/linux·blob master · refs

182 lines · 5.8 KiB

1# SPDX-License-Identifier: GPL-2.0
2#
3# Makefile for the linux kernel.
4#
5
6always-$(KBUILD_BUILTIN) += vmlinux.lds
7
8CPPFLAGS_vmlinux.lds += -U$(UTS_MACHINE)
9
10ifdef CONFIG_FUNCTION_TRACER
11# Do not profile debug and lowlevel utilities
12CFLAGS_REMOVE_tsc.o = -pg
13CFLAGS_REMOVE_paravirt-spinlocks.o = -pg
14CFLAGS_REMOVE_pvclock.o = -pg
15CFLAGS_REMOVE_kvmclock.o = -pg
16CFLAGS_REMOVE_ftrace.o = -pg
17CFLAGS_REMOVE_early_printk.o = -pg
18CFLAGS_REMOVE_head64.o = -pg
19CFLAGS_REMOVE_head32.o = -pg
20CFLAGS_REMOVE_rethook.o = -pg
21endif
22
23KASAN_SANITIZE_head$(BITS).o := n
24KASAN_SANITIZE_dumpstack.o := n
25KASAN_SANITIZE_dumpstack_$(BITS).o := n
26KASAN_SANITIZE_stacktrace.o := n
27KASAN_SANITIZE_paravirt.o := n
28
29# With some compiler versions the generated code results in boot hangs, caused
30# by several compilation units. To be safe, disable all instrumentation.
31KCSAN_SANITIZE := n
32KMSAN_SANITIZE_head$(BITS).o := n
33KMSAN_SANITIZE_nmi.o := n
34
35# If instrumentation of the following files is enabled, boot hangs during
36# first second.
37KCOV_INSTRUMENT_head$(BITS).o := n
38# These are called from save_stack_trace() on debug paths,
39# and produce large amounts of uninteresting coverage.
40KCOV_INSTRUMENT_stacktrace.o := n
41KCOV_INSTRUMENT_dumpstack.o := n
42KCOV_INSTRUMENT_dumpstack_$(BITS).o := n
43KCOV_INSTRUMENT_unwind_orc.o := n
44KCOV_INSTRUMENT_unwind_frame.o := n
45KCOV_INSTRUMENT_unwind_guess.o := n
46
47# Disable KCOV to prevent crashes during kexec: load_segments() invalidates
48# the GS base, which KCOV relies on for per-CPU data.
49#
50# As KCOV and KEXEC compatibility should be preserved (e.g. syzkaller is
51# using it to collect crash dumps during kernel fuzzing), disabling
52# KCOV for KEXEC kernels is not an option. Selectively disabling KCOV
53# instrumentation for individual affected functions can be fragile, while
54# adding more checks to KCOV would slow it down.
55#
56# As a compromise solution, disable KCOV instrumentation for the whole
57# source code file. If its coverage is ever needed, other approaches
58# should be considered.
59KCOV_INSTRUMENT_machine_kexec_64.o := n
60
61CFLAGS_head32.o := -fno-stack-protector
62CFLAGS_head64.o := -fno-stack-protector
63CFLAGS_irq.o := -I $(src)/../include/asm/trace
64
65obj-y += head_$(BITS).o
66obj-y += head$(BITS).o
67obj-y += ebda.o
68obj-y += platform-quirks.o
69obj-y += process_$(BITS).o signal.o signal_$(BITS).o
70obj-y += traps.o idt.o irq.o irq_$(BITS).o dumpstack_$(BITS).o
71obj-y += time.o ioport.o dumpstack.o nmi.o
72obj-$(CONFIG_X86_FRED) += fred.o
73obj-$(CONFIG_MODIFY_LDT_SYSCALL) += ldt.o
74obj-$(CONFIG_X86_KERNEL_IBT) += ibt_selftest.o
75obj-y += setup.o x86_init.o i8259.o irqinit.o
76obj-$(CONFIG_JUMP_LABEL) += jump_label.o
77obj-$(CONFIG_IRQ_WORK) += irq_work.o
78obj-y += probe_roms.o
79obj-$(CONFIG_X86_32) += sys_ia32.o
80obj-$(CONFIG_IA32_EMULATION) += sys_ia32.o signal_32.o
81obj-$(CONFIG_X86_64) += sys_x86_64.o
82obj-$(CONFIG_X86_ESPFIX64) += espfix_64.o
83obj-$(CONFIG_SYSFS) += ksysfs.o
84obj-y += bootflag.o e820.o
85obj-y += pci-dma.o quirks.o kdebugfs.o
86obj-y += alternative.o i8253.o hw_breakpoint.o
87obj-y += tsc.o tsc_msr.o io_delay.o rtc.o
88obj-y += resource.o
89obj-y += irqflags.o
90obj-y += static_call.o
91
92obj-y += process.o
93obj-y += fpu/
94obj-y += ptrace.o
95obj-$(CONFIG_X86_32) += tls.o
96obj-$(CONFIG_IA32_EMULATION) += tls.o
97obj-y += step.o
98obj-$(CONFIG_INTEL_TXT) += tboot.o
99obj-$(CONFIG_ISA_DMA_API) += i8237.o
100obj-y += stacktrace.o
101obj-y += cpu/
102obj-y += acpi/
103obj-y += reboot.o
104obj-$(CONFIG_X86_MSR) += msr.o
105obj-$(CONFIG_X86_CPUID) += cpuid.o
106obj-$(CONFIG_PCI) += early-quirks.o
107apm-y := apm_32.o
108obj-$(CONFIG_APM) += apm.o
109obj-$(CONFIG_SMP) += smp.o
110obj-$(CONFIG_SMP) += smpboot.o
111obj-y += tsc_sync.o
112obj-$(CONFIG_SMP) += setup_percpu.o
113obj-$(CONFIG_X86_MPPARSE) += mpparse.o
114obj-y += apic/
115obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
116obj-$(CONFIG_DYNAMIC_FTRACE) += ftrace.o
117obj-$(CONFIG_FUNCTION_TRACER) += ftrace_$(BITS).o
118obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += ftrace.o
119obj-$(CONFIG_FTRACE_SYSCALLS) += ftrace.o
120obj-y += trace_clock.o
121obj-$(CONFIG_TRACING) += trace.o
122obj-$(CONFIG_RETHOOK) += rethook.o
123obj-$(CONFIG_VMCORE_INFO) += vmcore_info_$(BITS).o
124obj-$(CONFIG_KEXEC_CORE) += machine_kexec_$(BITS).o
125obj-$(CONFIG_KEXEC_CORE) += relocate_kernel_$(BITS).o
126obj-$(CONFIG_KEXEC_FILE) += kexec-bzimage64.o
127obj-$(CONFIG_CRASH_DUMP) += crash_dump_$(BITS).o crash.o
128obj-y += kprobes/
129obj-$(CONFIG_MODULES) += module.o
130obj-$(CONFIG_X86_32) += doublefault_32.o
131obj-$(CONFIG_KGDB) += kgdb.o
132obj-$(CONFIG_VM86) += vm86_32.o
133obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
134
135obj-$(CONFIG_HPET_TIMER) += hpet.o
136
137obj-$(CONFIG_AMD_NB) += amd_nb.o
138obj-$(CONFIG_AMD_NODE) += amd_node.o
139obj-$(CONFIG_DEBUG_NMI_SELFTEST) += nmi_selftest.o
140
141obj-$(CONFIG_KVM_GUEST) += kvm.o kvmclock.o
142obj-$(CONFIG_PARAVIRT) += paravirt.o
143obj-$(CONFIG_PARAVIRT) += paravirt-spinlocks.o
144obj-$(CONFIG_PARAVIRT_CLOCK) += pvclock.o
145obj-$(CONFIG_X86_PMEM_LEGACY_DEVICE) += pmem.o
146
147obj-$(CONFIG_JAILHOUSE_GUEST) += jailhouse.o
148
149obj-$(CONFIG_EISA) += eisa.o
150obj-$(CONFIG_PCSPKR_PLATFORM) += pcspeaker.o
151
152obj-$(CONFIG_X86_CHECK_BIOS_CORRUPTION) += check.o
153
154obj-$(CONFIG_OF) += devicetree.o
155obj-$(CONFIG_UPROBES) += uprobes.o
156
157obj-$(CONFIG_PERF_EVENTS) += perf_regs.o
158obj-$(CONFIG_SCHED_MC_PRIO) += itmt.o
159obj-$(CONFIG_X86_UMIP) += umip.o
160
161obj-$(CONFIG_UNWINDER_ORC) += unwind_orc.o
162obj-$(CONFIG_UNWINDER_FRAME_POINTER) += unwind_frame.o
163obj-$(CONFIG_UNWINDER_GUESS) += unwind_guess.o
164
165obj-$(CONFIG_CFI) += cfi.o
166
167obj-$(CONFIG_CALL_THUNKS) += callthunks.o
168
169obj-$(CONFIG_X86_CET) += cet.o
170
171obj-$(CONFIG_X86_USER_SHADOW_STACK) += shstk.o
172
173###
174# 64 bit specific files
175ifeq ($(CONFIG_X86_64),y)
176 obj-$(CONFIG_AUDIT) += audit_64.o
177
178 obj-$(CONFIG_GART_IOMMU) += amd_gart_64.o aperture_64.o
179
180 obj-$(CONFIG_MMCONF_FAM10H) += mmconf-fam10h_64.o
181 obj-y += vsmp_64.o
182endif