1#
2# Makefile for the linux kernel.
3#
4
5extra-y := head.o init_task.o vmlinux.lds
6
7obj-y	:= process.o signal.o entry.o traps.o irq.o \
8		ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \
9		pci-dma.o i386_ksyms.o i387.o bootflag.o e820.o\
10		quirks.o i8237.o topology.o alternative.o i8253.o tsc.o
11
12obj-$(CONFIG_STACKTRACE)	+= stacktrace.o
13obj-y				+= cpu/
14obj-y				+= acpi/
15obj-$(CONFIG_X86_BIOS_REBOOT)	+= reboot.o
16obj-$(CONFIG_MCA)		+= mca.o
17obj-$(CONFIG_X86_MSR)		+= msr.o
18obj-$(CONFIG_X86_CPUID)		+= cpuid.o
19obj-$(CONFIG_MICROCODE)		+= microcode.o
20obj-$(CONFIG_APM)		+= apm.o
21obj-$(CONFIG_X86_SMP)		+= smp.o smpboot.o tsc_sync.o
22obj-$(CONFIG_SMP)		+= smpcommon.o
23obj-$(CONFIG_X86_TRAMPOLINE)	+= trampoline.o
24obj-$(CONFIG_X86_MPPARSE)	+= mpparse.o
25obj-$(CONFIG_X86_LOCAL_APIC)	+= apic.o nmi.o
26obj-$(CONFIG_X86_IO_APIC)	+= io_apic.o
27obj-$(CONFIG_X86_REBOOTFIXUPS)	+= reboot_fixups.o
28obj-$(CONFIG_KEXEC)		+= machine_kexec.o relocate_kernel.o crash.o
29obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
30obj-$(CONFIG_X86_NUMAQ)		+= numaq.o
31obj-$(CONFIG_X86_SUMMIT_NUMA)	+= summit.o
32obj-$(CONFIG_KPROBES)		+= kprobes.o
33obj-$(CONFIG_MODULES)		+= module.o
34obj-y				+= sysenter.o vsyscall.o
35obj-$(CONFIG_ACPI_SRAT) 	+= srat.o
36obj-$(CONFIG_EFI) 		+= efi.o efi_stub.o
37obj-$(CONFIG_DOUBLEFAULT) 	+= doublefault.o
38obj-$(CONFIG_SERIAL_8250)	+= legacy_serial.o
39obj-$(CONFIG_VM86)		+= vm86.o
40obj-$(CONFIG_EARLY_PRINTK)	+= early_printk.o
41obj-$(CONFIG_HPET_TIMER) 	+= hpet.o
42obj-$(CONFIG_K8_NB)		+= k8.o
43
44obj-$(CONFIG_VMI)		+= vmi.o vmiclock.o
45obj-$(CONFIG_PARAVIRT)		+= paravirt.o
46obj-y				+= pcspeaker.o
47
48obj-$(CONFIG_SCx200)		+= scx200.o
49
50# vsyscall.o contains the vsyscall DSO images as __initdata.
51# We must build both images before we can assemble it.
52# Note: kbuild does not track this dependency due to usage of .incbin
53$(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
54targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
55targets += vsyscall-note.o vsyscall.lds
56
57# The DSO images are built using a special linker script.
58quiet_cmd_syscall = SYSCALL $@
59      cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
60		          -Wl,-T,$(filter-out FORCE,$^) -o $@
61
62export CPPFLAGS_vsyscall.lds += -P -C -U$(ARCH)
63
64vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
65		 $(call ld-option, -Wl$(comma)--hash-style=sysv)
66SYSCFLAGS_vsyscall-sysenter.so	= $(vsyscall-flags)
67SYSCFLAGS_vsyscall-int80.so	= $(vsyscall-flags)
68
69$(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
70$(obj)/vsyscall-%.so: $(src)/vsyscall.lds \
71		      $(obj)/vsyscall-%.o $(obj)/vsyscall-note.o FORCE
72	$(call if_changed,syscall)
73
74# We also create a special relocatable object that should mirror the symbol
75# table and layout of the linked DSO.  With ld -R we can then refer to
76# these symbols in the kernel code rather than hand-coded addresses.
77extra-y += vsyscall-syms.o
78$(obj)/built-in.o: $(obj)/vsyscall-syms.o
79$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
80
81SYSCFLAGS_vsyscall-syms.o = -r
82$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \
83			$(obj)/vsyscall-sysenter.o $(obj)/vsyscall-note.o FORCE
84	$(call if_changed,syscall)
85
86k8-y                      += ../../x86_64/kernel/k8.o
87stacktrace-y		  += ../../x86_64/kernel/stacktrace.o
88