1 # SPDX-License-Identifier: GPL-2.0
3 # Makefile for the linux kernel.
7 CFLAGS_prom_init.o += $(NO_MINIMAL_TOC)
10 CFLAGS_prom_init.o += -fPIC
11 CFLAGS_btext.o += -fPIC
14 CFLAGS_early_32.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
15 CFLAGS_cputable.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
16 CFLAGS_prom_init.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
17 CFLAGS_btext.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
18 CFLAGS_prom.o += $(DISABLE_LATENT_ENTROPY_PLUGIN)
20 CFLAGS_prom_init.o += -fno-stack-protector
21 CFLAGS_prom_init.o += -DDISABLE_BRANCH_PROFILING
22 CFLAGS_prom_init.o += -ffreestanding
23 CFLAGS_prom_init.o += $(call cc-option, -ftrivial-auto-var-init=uninitialized)
25 ifdef CONFIG_FUNCTION_TRACER
26 # Do not trace early boot code
27 CFLAGS_REMOVE_cputable.o = $(CC_FLAGS_FTRACE)
28 CFLAGS_REMOVE_prom_init.o = $(CC_FLAGS_FTRACE)
29 CFLAGS_REMOVE_btext.o = $(CC_FLAGS_FTRACE)
30 CFLAGS_REMOVE_prom.o = $(CC_FLAGS_FTRACE)
33 KASAN_SANITIZE_early_32.o := n
34 KASAN_SANITIZE_cputable.o := n
35 KASAN_SANITIZE_prom_init.o := n
36 KASAN_SANITIZE_btext.o := n
37 KASAN_SANITIZE_paca.o := n
38 KASAN_SANITIZE_setup_64.o := n
39 KASAN_SANITIZE_mce.o := n
40 KASAN_SANITIZE_mce_power.o := n
41 KASAN_SANITIZE_udbg.o := n
42 KASAN_SANITIZE_udbg_16550.o := n
44 # we have to be particularly careful in ppc64 to exclude code that
45 # runs with translations off, as we cannot access the shadow with
46 # translations off. However, ppc32 can sanitize this.
48 KASAN_SANITIZE_traps.o := n
52 CFLAGS_early_32.o += -DDISABLE_BRANCH_PROFILING
53 CFLAGS_cputable.o += -DDISABLE_BRANCH_PROFILING
54 CFLAGS_btext.o += -DDISABLE_BRANCH_PROFILING
57 #ifdef CONFIG_RANDOMIZE_KSTACK_OFFSET
58 # Remove stack protector to avoid triggering unneeded stack canary
59 # checks due to randomize_kstack_offset.
60 CFLAGS_REMOVE_syscall.o = -fstack-protector -fstack-protector-strong
61 CFLAGS_syscall.o += -fno-stack-protector
64 obj-y := cputable.o syscalls.o \
65 irq.o align.o signal_$(BITS).o pmc.o vdso.o \
66 process.o systbl.o idle.o \
67 signal.o sysfs.o cacheinfo.o time.o \
68 prom.o traps.o setup-common.o \
69 udbg.o misc.o io.o misc_$(BITS).o \
70 of_platform.o prom_parse.o firmware.o \
71 hw_breakpoint_constraints.o interrupt.o \
72 kdebugfs.o stacktrace.o syscall.o
74 obj-$(CONFIG_PPC64) += setup_64.o irq_64.o\
75 paca.o nvram_64.o note.o
76 obj-$(CONFIG_COMPAT) += sys_ppc32.o signal_32.o
77 obj-$(CONFIG_VDSO32) += vdso32_wrapper.o
78 obj-$(CONFIG_PPC_WATCHDOG) += watchdog.o
79 obj-$(CONFIG_HAVE_HW_BREAKPOINT) += hw_breakpoint.o
80 obj-$(CONFIG_PPC_DAWR) += dawr.o
81 obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_ppc970.o cpu_setup_pa6t.o
82 obj-$(CONFIG_PPC_BOOK3S_64) += cpu_setup_power.o
83 obj-$(CONFIG_PPC_BOOK3S_64) += mce.o mce_power.o
84 obj-$(CONFIG_PPC_BOOK3E_64) += exceptions-64e.o idle_64e.o
85 obj-$(CONFIG_PPC_BARRIER_NOSPEC) += security.o
86 obj-$(CONFIG_PPC64) += vdso64_wrapper.o
87 obj-$(CONFIG_ALTIVEC) += vecemu.o
88 obj-$(CONFIG_PPC_BOOK3S_IDLE) += idle_book3s.o
89 procfs-y := proc_powerpc.o
90 obj-$(CONFIG_PROC_FS) += $(procfs-y)
91 rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI) := rtas_pci.o
92 obj-$(CONFIG_PPC_RTAS) += rtas_entry.o rtas.o rtas-rtc.o $(rtaspci-y-y)
93 obj-$(CONFIG_PPC_RTAS_DAEMON) += rtasd.o
94 obj-$(CONFIG_RTAS_FLASH) += rtas_flash.o
95 obj-$(CONFIG_RTAS_PROC) += rtas-proc.o
96 obj-$(CONFIG_PPC_DT_CPU_FTRS) += dt_cpu_ftrs.o
97 obj-$(CONFIG_EEH) += eeh.o eeh_pe.o eeh_cache.o \
98 eeh_driver.o eeh_event.o eeh_sysfs.o
99 obj-$(CONFIG_GENERIC_TBSYNC) += smp-tbsync.o
100 obj-$(CONFIG_CRASH_DUMP) += crash_dump.o
101 obj-$(CONFIG_FA_DUMP) += fadump.o
102 obj-$(CONFIG_PRESERVE_FA_DUMP) += fadump.o
103 obj-$(CONFIG_PPC_85xx) += idle_85xx.o
104 obj-$(CONFIG_PPC_BOOK3S_32) += idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
105 obj-$(CONFIG_TAU) += tau_6xx.o
106 obj-$(CONFIG_HIBERNATION) += swsusp.o suspend.o
107 ifdef CONFIG_PPC_85xx
108 obj-$(CONFIG_HIBERNATION) += swsusp_85xx.o
110 obj-$(CONFIG_HIBERNATION) += swsusp_$(BITS).o
112 obj64-$(CONFIG_HIBERNATION) += swsusp_asm64.o
113 obj-$(CONFIG_MODULES) += module.o module_$(BITS).o
114 obj-$(CONFIG_44x) += cpu_setup_44x.o
115 obj-$(CONFIG_PPC_E500) += cpu_setup_e500.o
116 obj-$(CONFIG_PPC_DOORBELL) += dbell.o
117 obj-$(CONFIG_JUMP_LABEL) += jump_label.o
119 obj-$(CONFIG_PPC64) += head_64.o
120 obj-$(CONFIG_PPC_BOOK3S_32) += head_book3s_32.o
121 obj-$(CONFIG_40x) += head_40x.o
122 obj-$(CONFIG_44x) += head_44x.o
123 obj-$(CONFIG_PPC_8xx) += head_8xx.o
124 obj-$(CONFIG_FSL_BOOKE) += head_85xx.o
125 extra-y += vmlinux.lds
127 obj-$(CONFIG_RELOCATABLE) += reloc_$(BITS).o
129 obj-$(CONFIG_PPC32) += entry_32.o setup_32.o early_32.o static_call.o
130 obj-$(CONFIG_PPC64) += dma-iommu.o iommu.o
131 obj-$(CONFIG_KGDB) += kgdb.o
132 obj-$(CONFIG_BOOTX_TEXT) += btext.o
133 obj-$(CONFIG_SMP) += smp.o
134 obj-$(CONFIG_KPROBES) += kprobes.o
135 obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o
136 obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o
137 obj-$(CONFIG_UPROBES) += uprobes.o
138 obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o
139 obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o
140 obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o
142 pci64-$(CONFIG_PPC64) += pci_dn.o pci-hotplug.o isa-bridge.o
143 obj-$(CONFIG_PCI) += pci_$(BITS).o $(pci64-y) \
144 pci-common.o pci_of_scan.o
145 obj-$(CONFIG_PCI_MSI) += msi.o
147 obj-$(CONFIG_AUDIT) += audit.o
148 obj64-$(CONFIG_AUDIT) += compat_audit.o
150 obj-$(CONFIG_PPC_IO_WORKAROUNDS) += io-workarounds.o
154 ifneq ($(CONFIG_PPC_INDIRECT_PIO),y)
158 obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM) += tm.o
160 obj-$(CONFIG_PPC64) += $(obj64-y)
161 obj-$(CONFIG_PPC32) += $(obj32-y)
163 ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC_CORE)(CONFIG_PPC_BOOK3S),)
164 obj-y += ppc_save_regs.o
167 obj-$(CONFIG_EPAPR_PARAVIRT) += epapr_paravirt.o epapr_hcalls.o
168 obj-$(CONFIG_KVM_GUEST) += kvm.o kvm_emul.o
169 ifneq ($(CONFIG_PPC_POWERNV)$(CONFIG_PPC_SVM),)
173 obj-$(CONFIG_PPC_SECURE_BOOT) += secure_boot.o ima_arch.o secvar-ops.o
174 obj-$(CONFIG_PPC_SECVAR_SYSFS) += secvar-sysfs.o
176 # Disable GCOV, KCOV & sanitizers in odd or sensitive code
177 GCOV_PROFILE_prom_init.o := n
178 KCOV_INSTRUMENT_prom_init.o := n
179 UBSAN_SANITIZE_prom_init.o := n
180 GCOV_PROFILE_kprobes.o := n
181 KCOV_INSTRUMENT_kprobes.o := n
182 UBSAN_SANITIZE_kprobes.o := n
183 GCOV_PROFILE_kprobes-ftrace.o := n
184 KCOV_INSTRUMENT_kprobes-ftrace.o := n
185 UBSAN_SANITIZE_kprobes-ftrace.o := n
186 GCOV_PROFILE_syscall_64.o := n
187 KCOV_INSTRUMENT_syscall_64.o := n
188 UBSAN_SANITIZE_syscall_64.o := n
189 UBSAN_SANITIZE_vdso.o := n
191 # Necessary for booting with kcov enabled on book3e machines
192 KCOV_INSTRUMENT_cputable.o := n
193 KCOV_INSTRUMENT_setup_64.o := n
194 KCOV_INSTRUMENT_paca.o := n
196 CFLAGS_setup_64.o += -fno-stack-protector
197 CFLAGS_paca.o += -fno-stack-protector
199 obj-$(CONFIG_PPC_FPU) += fpu.o
200 obj-$(CONFIG_ALTIVEC) += vector.o
201 obj-$(CONFIG_PPC64) += entry_64.o
202 obj-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init.o
204 extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE) += prom_init_check
206 quiet_cmd_prom_init_check = PROMCHK $@
207 cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" $(obj)/prom_init.o; touch $@
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
213 clean-files := vmlinux.lds
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