linux - arch/powerpc/kernel/Makefile

220 lines · 7.2 KiB

1	# SPDX-License-Identifier: GPL-2.0
2	#
3	# Makefile for the linux kernel.
4	#
5
6	ifdef CONFIG_PPC32
7	CFLAGS_prom_init.o += -fPIC
8	CFLAGS_btext.o += -fPIC
9	endif
10
11	CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
12	CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
13	CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
14	CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
15	CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
16
17	CFLAGS_prom_init.o += -fno-stack-protector
18	CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING
19	CFLAGS_prom_init.o += -ffreestanding
20	CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized)
21
22	ifdef CONFIG_FUNCTION_TRACER
23	# Do not trace early boot code
24	CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE)
25	CFLAGS_REMOVE_prom_init.o = $(CC_FLAGS_FTRACE)
26	CFLAGS_REMOVE_btext.o = $(CC_FLAGS_FTRACE)
27	CFLAGS_REMOVE_prom.o = $(CC_FLAGS_FTRACE)
28	endif
29
30	KASAN_SANITIZE_early_32.o := n
31	KASAN_SANITIZE_cputable.o := n
32	KASAN_SANITIZE_prom_init.o := n
33	KASAN_SANITIZE_btext.o := n
34	KASAN_SANITIZE_paca.o := n
35	KASAN_SANITIZE_setup_64.o := n
36	KASAN_SANITIZE_mce.o := n
37	KASAN_SANITIZE_mce_power.o := n
38	KASAN_SANITIZE_udbg.o := n
39	KASAN_SANITIZE_udbg_16550.o := n
40
41	# we have to be particularly careful in ppc64 to exclude code that
42	# runs with translations off, as we cannot access the shadow with
43	# translations off. However, ppc32 can sanitize this.
44	ifdef CONFIG_PPC64
45	KASAN_SANITIZE_traps.o := n
46	endif
47
48	ifdef CONFIG_KASAN
49	CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING
50	CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING
51	CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING
52	endif
53
54	KCSAN_SANITIZE_early_32.o := n
55	KCSAN_SANITIZE_cputable.o := n
56	KCSAN_SANITIZE_btext.o := n
57	KCSAN_SANITIZE_paca.o := n
58	KCSAN_SANITIZE_setup_64.o := n
59
60	#ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET
61	# Remove stack protector to avoid triggering unneeded stack canary
62	# checks due to randomize_kstack_offset.
63	CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong
64	CFLAGS_syscall.o += -fno-stack-protector
65	#endif
66
67	obj-y := cputable.o syscalls.o switch.o \
68	irq.o align.o signal_$(BITS).o pmc.o vdso.o \
69	process.o systbl.o idle.o \
70	signal.o sysfs.o cacheinfo.o time.o \
71	prom.o traps.o setup-common.o \
72	udbg.o misc.o io.o misc_$(BITS).o \
73	prom_parse.o firmware.o \
74	hw_breakpoint_constraints.o interrupt.o \
75	kdebugfs.o stacktrace.o syscall.o
76	obj-y += ptrace/
77	obj-$(CONFIG_PPC64) += setup_64.o irq_64.o\
78	paca.o nvram_64.o note.o
79	obj-$(CONFIG_PPC32) += sys_ppc32.o
80	obj-$(CONFIG_COMPAT) += sys_ppc32.o signal_32.o
81	obj-$(CONFIG_VDSO32) += vdso32_wrapper.o
82	obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o
83	obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
84	obj-$(CONFIG_PPC_DAWR) += dawr.o
85	obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o
86	obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o
87	obj-$(CONFIG_PPC_BOOK3S_64) += dexcr.o
88	obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o
89	obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_64e.o
90	obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o
91	obj-$(CONFIG_PPC64) += vdso64_wrapper.o
92	obj-$(CONFIG_ALTIVEC) += vecemu.o
93	obj-$(CONFIG_PPC_BOOK3S_IDLE) += idle_book3s.o
94	procfs-y := proc_powerpc.o
95	obj-$(CONFIG_PROC_FS) += $(procfs-y)
96	rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o
97	obj-$(CONFIG_PPC_RTAS) += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y)
98	obj-$(CONFIG_PPC_RTAS_DAEMON) += rtasd.o
99	obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o
100	obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
101	obj-$(CONFIG_PPC_DT_CPU_FTRS) += dt_cpu_ftrs.o
102	obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_cache.o \
103	eeh_driver.o eeh_event.o eeh_sysfs.o
104	obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
105	obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
106	obj-$(CONFIG_FA_DUMP) += fadump.o
107	obj-$(CONFIG_PRESERVE_FA_DUMP) += fadump.o
108	obj-$(CONFIG_PPC_85xx) += idle_85xx.o
109	obj-$(CONFIG_PPC_BOOK3S_32) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
110	obj-$(CONFIG_TAU) += tau_6xx.o
111	obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
112	ifdef CONFIG_PPC_85xx
113	obj-$(CONFIG_HIBERNATION) += swsusp_85xx.o
114	else
115	obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o
116	endif
117	obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o
118	obj-$(CONFIG_MODULES) += module.o module_$(BITS).o
119	obj-$(CONFIG_44x) += cpu_setup_44x.o
120	obj-$(CONFIG_PPC_E500) += cpu_setup_e500.o
121	obj-$(CONFIG_PPC_DOORBELL) += dbell.o
122	obj-$(CONFIG_JUMP_LABEL) += jump_label.o
123
124	obj-$(CONFIG_PPC64) += head_64.o
125	obj-$(CONFIG_PPC_BOOK3S_32) += head_book3s_32.o
126	obj-$(CONFIG_44x) += head_44x.o
127	obj-$(CONFIG_PPC_8xx) += head_8xx.o
128	obj-$(CONFIG_PPC_85xx) += head_85xx.o
129	always-$(KBUILD_BUILTIN) += vmlinux.lds
130
131	obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o
132
133	obj-$(CONFIG_PPC32) += entry_32.o setup_32.o early_32.o static_call.o
134	obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o
135	obj-$(CONFIG_KGDB) += kgdb.o
136	obj-$(CONFIG_BOOTX_TEXT) += btext.o
137	obj-$(CONFIG_SMP) += smp.o
138	obj-$(CONFIG_KPROBES) += kprobes.o
139	obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o
140	obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o
141	obj-$(CONFIG_UPROBES) += uprobes.o
142	obj-$(CONFIG_RETHOOK) += rethook.o
143	obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o
144	obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o
145	obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o
146
147	pci64-$(CONFIG_PPC64) += pci_dn.o pci-hotplug.o isa-bridge.o
148	obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \
149	pci-common.o pci_of_scan.o
150	obj-$(CONFIG_PCI_MSI) += msi.o
151
152	obj-y += trace/
153
154	ifneq ($(CONFIG_PPC_INDIRECT_PIO),y)
155	obj-y += iomap.o
156	endif
157
158	obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o
159
160	obj-y += ppc_save_regs.o
161
162	obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o
163	obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o
164	ifneq ($(CONFIG_PPC_POWERNV)$(CONFIG_PPC_SVM),)
165	obj-y += ucall.o
166	endif
167
168	obj-$(CONFIG_PPC_SECURE_BOOT) += secure_boot.o ima_arch.o secvar-ops.o
169	obj-$(CONFIG_PPC_SECVAR_SYSFS) += secvar-sysfs.o
170
171	# Disable GCOV, KCOV & sanitizers in odd or sensitive code
172	GCOV_PROFILE_prom_init.o := n
173	KCOV_INSTRUMENT_prom_init.o := n
174	KCSAN_SANITIZE_prom_init.o := n
175	UBSAN_SANITIZE_prom_init.o := n
176	GCOV_PROFILE_kprobes.o := n
177	KCOV_INSTRUMENT_kprobes.o := n
178	KCSAN_SANITIZE_kprobes.o := n
179	UBSAN_SANITIZE_kprobes.o := n
180	GCOV_PROFILE_kprobes-ftrace.o := n
181	KCOV_INSTRUMENT_kprobes-ftrace.o := n
182	KCSAN_SANITIZE_kprobes-ftrace.o := n
183	UBSAN_SANITIZE_kprobes-ftrace.o := n
184	UBSAN_SANITIZE_vdso.o := n
185
186	# Necessary for booting with kcov enabled on book3e machines
187	KCOV_INSTRUMENT_cputable.o := n
188	KCOV_INSTRUMENT_setup_64.o := n
189	KCOV_INSTRUMENT_paca.o := n
190
191	CFLAGS_setup_64.o += -fno-stack-protector
192	CFLAGS_paca.o += -fno-stack-protector
193
194	obj-$(CONFIG_PPC_FPU) += fpu.o
195	obj-$(CONFIG_ALTIVEC) += vector.o
196
197	obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o
198	obj64-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_entry_64.o
199	ifdef KBUILD_BUILTIN
200	always-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init_check
201	endif
202
203	obj-$(CONFIG_PPC64) += $(obj64-y)
204	obj-$(CONFIG_PPC32) += $(obj32-y)
205
206	quiet_cmd_prom_init_check = PROMCHK $@
207	cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@
208
209	$(obj)/prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o FORCE
210	$(call if_changed,prom_init_check)
211	targets += prom_init_check
212
213	clean-files := vmlinux.lds
214
215	# Force dependency (incbin is bad)
216	$(obj)/vdso32_wrapper.o : $(obj)/vdso/vdso32.so.dbg
217	$(obj)/vdso64_wrapper.o : $(obj)/vdso/vdso64.so.dbg
218
219	# for cleaning
220	subdir- += vdso