This hooks up UBSAN support for PowerPC. So far it's found some interesting cases where we don't properly sanitise input to shifts, including one in our futex handling. Nothing critical, but interesting and worth fixing. [valentinrothberg@gmail.com: arch/powerpc/Kconfig: fix typo in select statement] Signed-off-by: Daniel Axtens <dja@axtens.net> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
		
			
				
	
	
		
			179 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
			
		
		
	
	
			179 lines
		
	
	
		
			5.6 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
#
 | 
						|
# Makefile for the linux kernel.
 | 
						|
#
 | 
						|
 | 
						|
CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
 | 
						|
 | 
						|
subdir-ccflags-$(CONFIG_PPC_WERROR) := -Werror
 | 
						|
 | 
						|
ifeq ($(CONFIG_PPC64),y)
 | 
						|
CFLAGS_prom_init.o	+= $(NO_MINIMAL_TOC)
 | 
						|
endif
 | 
						|
ifeq ($(CONFIG_PPC32),y)
 | 
						|
CFLAGS_prom_init.o      += -fPIC
 | 
						|
CFLAGS_btext.o		+= -fPIC
 | 
						|
endif
 | 
						|
 | 
						|
ifdef CONFIG_FUNCTION_TRACER
 | 
						|
# Do not trace early boot code
 | 
						|
CFLAGS_REMOVE_cputable.o = -pg -mno-sched-epilog
 | 
						|
CFLAGS_REMOVE_prom_init.o = -pg -mno-sched-epilog
 | 
						|
CFLAGS_REMOVE_btext.o = -pg -mno-sched-epilog
 | 
						|
CFLAGS_REMOVE_prom.o = -pg -mno-sched-epilog
 | 
						|
# do not trace tracer code
 | 
						|
CFLAGS_REMOVE_ftrace.o = -pg -mno-sched-epilog
 | 
						|
# timers used by tracing
 | 
						|
CFLAGS_REMOVE_time.o = -pg -mno-sched-epilog
 | 
						|
endif
 | 
						|
 | 
						|
obj-y				:= cputable.o ptrace.o syscalls.o \
 | 
						|
				   irq.o align.o signal_32.o pmc.o vdso.o \
 | 
						|
				   process.o systbl.o idle.o \
 | 
						|
				   signal.o sysfs.o cacheinfo.o time.o \
 | 
						|
				   prom.o traps.o setup-common.o \
 | 
						|
				   udbg.o misc.o io.o dma.o \
 | 
						|
				   misc_$(CONFIG_WORD_SIZE).o \
 | 
						|
				   of_platform.o prom_parse.o
 | 
						|
obj-$(CONFIG_PPC64)		+= setup_64.o sys_ppc32.o \
 | 
						|
				   signal_64.o ptrace32.o \
 | 
						|
				   paca.o nvram_64.o firmware.o
 | 
						|
obj-$(CONFIG_VDSO32)		+= vdso32/
 | 
						|
obj-$(CONFIG_HAVE_HW_BREAKPOINT)	+= hw_breakpoint.o
 | 
						|
obj-$(CONFIG_PPC_BOOK3S_64)	+= cpu_setup_ppc970.o cpu_setup_pa6t.o
 | 
						|
obj-$(CONFIG_PPC_BOOK3S_64)	+= cpu_setup_power.o
 | 
						|
obj-$(CONFIG_PPC_BOOK3S_64)	+= mce.o mce_power.o
 | 
						|
obj64-$(CONFIG_RELOCATABLE)	+= reloc_64.o
 | 
						|
obj-$(CONFIG_PPC_BOOK3E_64)	+= exceptions-64e.o idle_book3e.o
 | 
						|
obj-$(CONFIG_PPC64)		+= vdso64/
 | 
						|
obj-$(CONFIG_ALTIVEC)		+= vecemu.o
 | 
						|
obj-$(CONFIG_PPC_970_NAP)	+= idle_power4.o
 | 
						|
obj-$(CONFIG_PPC_P7_NAP)	+= idle_power7.o
 | 
						|
procfs-y			:= proc_powerpc.o
 | 
						|
obj-$(CONFIG_PROC_FS)		+= $(procfs-y)
 | 
						|
rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI)	:= rtas_pci.o
 | 
						|
obj-$(CONFIG_PPC_RTAS)		+= rtas.o rtas-rtc.o $(rtaspci-y-y)
 | 
						|
obj-$(CONFIG_PPC_RTAS_DAEMON)	+= rtasd.o
 | 
						|
obj-$(CONFIG_RTAS_FLASH)	+= rtas_flash.o
 | 
						|
obj-$(CONFIG_RTAS_PROC)		+= rtas-proc.o
 | 
						|
obj-$(CONFIG_IBMVIO)		+= vio.o
 | 
						|
obj-$(CONFIG_IBMEBUS)           += ibmebus.o
 | 
						|
obj-$(CONFIG_EEH)              += eeh.o eeh_pe.o eeh_dev.o eeh_cache.o \
 | 
						|
				  eeh_driver.o eeh_event.o eeh_sysfs.o
 | 
						|
obj-$(CONFIG_GENERIC_TBSYNC)	+= smp-tbsync.o
 | 
						|
obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 | 
						|
obj-$(CONFIG_FA_DUMP)		+= fadump.o
 | 
						|
ifeq ($(CONFIG_PPC32),y)
 | 
						|
obj-$(CONFIG_E500)		+= idle_e500.o
 | 
						|
endif
 | 
						|
obj-$(CONFIG_6xx)		+= idle_6xx.o l2cr_6xx.o cpu_setup_6xx.o
 | 
						|
obj-$(CONFIG_TAU)		+= tau_6xx.o
 | 
						|
obj-$(CONFIG_HIBERNATION)	+= swsusp.o suspend.o
 | 
						|
ifeq ($(CONFIG_FSL_BOOKE),y)
 | 
						|
obj-$(CONFIG_HIBERNATION)	+= swsusp_booke.o
 | 
						|
else
 | 
						|
obj-$(CONFIG_HIBERNATION)	+= swsusp_$(CONFIG_WORD_SIZE).o
 | 
						|
endif
 | 
						|
obj64-$(CONFIG_HIBERNATION)	+= swsusp_asm64.o
 | 
						|
obj-$(CONFIG_MODULES)		+= module.o module_$(CONFIG_WORD_SIZE).o
 | 
						|
obj-$(CONFIG_44x)		+= cpu_setup_44x.o
 | 
						|
obj-$(CONFIG_PPC_FSL_BOOK3E)	+= cpu_setup_fsl_booke.o
 | 
						|
obj-$(CONFIG_PPC_DOORBELL)	+= dbell.o
 | 
						|
obj-$(CONFIG_JUMP_LABEL)	+= jump_label.o
 | 
						|
 | 
						|
extra-y				:= head_$(CONFIG_WORD_SIZE).o
 | 
						|
extra-$(CONFIG_40x)		:= head_40x.o
 | 
						|
extra-$(CONFIG_44x)		:= head_44x.o
 | 
						|
extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
 | 
						|
extra-$(CONFIG_8xx)		:= head_8xx.o
 | 
						|
extra-y				+= vmlinux.lds
 | 
						|
 | 
						|
obj-$(CONFIG_RELOCATABLE_PPC32)	+= reloc_32.o
 | 
						|
 | 
						|
obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o
 | 
						|
obj-$(CONFIG_PPC64)		+= dma-iommu.o iommu.o
 | 
						|
obj-$(CONFIG_KGDB)		+= kgdb.o
 | 
						|
obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
 | 
						|
ifeq ($(CONFIG_PPC32),y)
 | 
						|
obj-$(CONFIG_MODULES)		+= ppc_ksyms_32.o
 | 
						|
endif
 | 
						|
obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
 | 
						|
obj-$(CONFIG_SMP)		+= smp.o
 | 
						|
obj-$(CONFIG_KPROBES)		+= kprobes.o
 | 
						|
obj-$(CONFIG_UPROBES)		+= uprobes.o
 | 
						|
obj-$(CONFIG_PPC_UDBG_16550)	+= legacy_serial.o udbg_16550.o
 | 
						|
obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
 | 
						|
obj-$(CONFIG_SWIOTLB)		+= dma-swiotlb.o
 | 
						|
 | 
						|
pci64-$(CONFIG_PPC64)		+= pci_dn.o pci-hotplug.o isa-bridge.o
 | 
						|
obj-$(CONFIG_PCI)		+= pci_$(CONFIG_WORD_SIZE).o $(pci64-y) \
 | 
						|
				   pci-common.o pci_of_scan.o
 | 
						|
obj-$(CONFIG_PCI_MSI)		+= msi.o
 | 
						|
obj-$(CONFIG_KEXEC)		+= machine_kexec.o crash.o \
 | 
						|
				   machine_kexec_$(CONFIG_WORD_SIZE).o
 | 
						|
obj-$(CONFIG_AUDIT)		+= audit.o
 | 
						|
obj64-$(CONFIG_AUDIT)		+= compat_audit.o
 | 
						|
 | 
						|
obj-$(CONFIG_PPC_IO_WORKAROUNDS)	+= io-workarounds.o
 | 
						|
 | 
						|
obj-$(CONFIG_DYNAMIC_FTRACE)	+= ftrace.o
 | 
						|
obj-$(CONFIG_FUNCTION_GRAPH_TRACER)	+= ftrace.o
 | 
						|
obj-$(CONFIG_FTRACE_SYSCALLS)	+= ftrace.o
 | 
						|
obj-$(CONFIG_TRACING)		+= trace_clock.o
 | 
						|
 | 
						|
ifneq ($(CONFIG_PPC_INDIRECT_PIO),y)
 | 
						|
obj-y				+= iomap.o
 | 
						|
endif
 | 
						|
 | 
						|
obj64-$(CONFIG_PPC_TRANSACTIONAL_MEM)	+= tm.o
 | 
						|
 | 
						|
obj-$(CONFIG_PPC64)		+= $(obj64-y)
 | 
						|
obj-$(CONFIG_PPC32)		+= $(obj32-y)
 | 
						|
 | 
						|
ifneq ($(CONFIG_XMON)$(CONFIG_KEXEC),)
 | 
						|
obj-y				+= ppc_save_regs.o
 | 
						|
endif
 | 
						|
 | 
						|
obj-$(CONFIG_EPAPR_PARAVIRT)	+= epapr_paravirt.o epapr_hcalls.o
 | 
						|
obj-$(CONFIG_KVM_GUEST)		+= kvm.o kvm_emul.o
 | 
						|
 | 
						|
# Disable GCOV & sanitizers in odd or sensitive code
 | 
						|
GCOV_PROFILE_prom_init.o := n
 | 
						|
UBSAN_SANITIZE_prom_init.o := n
 | 
						|
GCOV_PROFILE_ftrace.o := n
 | 
						|
UBSAN_SANITIZE_ftrace.o := n
 | 
						|
GCOV_PROFILE_machine_kexec_64.o := n
 | 
						|
UBSAN_SANITIZE_machine_kexec_64.o := n
 | 
						|
GCOV_PROFILE_machine_kexec_32.o := n
 | 
						|
UBSAN_SANITIZE_machine_kexec_32.o := n
 | 
						|
GCOV_PROFILE_kprobes.o := n
 | 
						|
UBSAN_SANITIZE_kprobes.o := n
 | 
						|
UBSAN_SANITIZE_vdso.o := n
 | 
						|
 | 
						|
extra-$(CONFIG_PPC_FPU)		+= fpu.o
 | 
						|
extra-$(CONFIG_ALTIVEC)		+= vector.o
 | 
						|
extra-$(CONFIG_PPC64)		+= entry_64.o
 | 
						|
extra-$(CONFIG_PPC_OF_BOOT_TRAMPOLINE)	+= prom_init.o
 | 
						|
 | 
						|
extra-y				+= systbl_chk.i
 | 
						|
$(obj)/systbl.o:		systbl_chk
 | 
						|
 | 
						|
quiet_cmd_systbl_chk = CALL    $<
 | 
						|
      cmd_systbl_chk = $(CONFIG_SHELL) $< $(obj)/systbl_chk.i
 | 
						|
 | 
						|
PHONY += systbl_chk
 | 
						|
systbl_chk: $(src)/systbl_chk.sh $(obj)/systbl_chk.i
 | 
						|
	$(call cmd,systbl_chk)
 | 
						|
 | 
						|
ifeq ($(CONFIG_PPC_OF_BOOT_TRAMPOLINE),y)
 | 
						|
$(obj)/built-in.o:		prom_init_check
 | 
						|
 | 
						|
quiet_cmd_prom_init_check = CALL    $<
 | 
						|
      cmd_prom_init_check = $(CONFIG_SHELL) $< "$(NM)" "$(obj)/prom_init.o"
 | 
						|
 | 
						|
PHONY += prom_init_check
 | 
						|
prom_init_check: $(src)/prom_init_check.sh $(obj)/prom_init.o
 | 
						|
	$(call cmd,prom_init_check)
 | 
						|
endif
 | 
						|
 | 
						|
clean-files := vmlinux.lds
 |