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