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 \
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
22 obj-
$(CONFIG_X86_TRAMPOLINE
) += trampoline.o
23 obj-
$(CONFIG_X86_MPPARSE
) += mpparse.o
24 obj-
$(CONFIG_X86_LOCAL_APIC
) += apic.o nmi.o
25 obj-
$(CONFIG_X86_IO_APIC
) += io_apic.o
26 obj-
$(CONFIG_X86_REBOOTFIXUPS
) += reboot_fixups.o
27 obj-
$(CONFIG_KEXEC
) += machine_kexec.o relocate_kernel.o crash.o
28 obj-
$(CONFIG_CRASH_DUMP
) += crash_dump.o
29 obj-
$(CONFIG_X86_NUMAQ
) += numaq.o
30 obj-
$(CONFIG_X86_SUMMIT_NUMA
) += summit.o
31 obj-
$(CONFIG_KPROBES
) += kprobes.o
32 obj-
$(CONFIG_MODULES
) += module.o
33 obj-y
+= sysenter.o vsyscall.o
34 obj-
$(CONFIG_ACPI_SRAT
) += srat.o
35 obj-
$(CONFIG_HPET_TIMER
) += time_hpet.o
36 obj-
$(CONFIG_EFI
) += efi.o efi_stub.o
37 obj-
$(CONFIG_DOUBLEFAULT
) += doublefault.o
38 obj-
$(CONFIG_VM86
) += vm86.o
39 obj-
$(CONFIG_EARLY_PRINTK
) += early_printk.o
40 obj-
$(CONFIG_HPET_TIMER
) += hpet.o
41 obj-
$(CONFIG_K8_NB
) += k8.o
43 EXTRA_AFLAGS
:= -traditional
45 obj-
$(CONFIG_SCx200
) += scx200.o
47 # vsyscall.o contains the vsyscall DSO images as __initdata.
48 # We must build both images before we can assemble it.
49 # Note: kbuild does not track this dependency due to usage of .incbin
50 $(obj
)/vsyscall.o
: $(obj
)/vsyscall-int80.so
$(obj
)/vsyscall-sysenter.so
51 targets
+= $(foreach F
,int80 sysenter
,vsyscall-
$F.o vsyscall-
$F.so
)
52 targets
+= vsyscall-note.o vsyscall.lds
54 # The DSO images are built using a special linker script.
55 quiet_cmd_syscall
= SYSCALL
$@
56 cmd_syscall
= $(CC
) -m elf_i386
-nostdlib
$(SYSCFLAGS_
$(@F
)) \
57 -Wl
,-T
,$(filter-out FORCE
,$^
) -o
$@
59 export CPPFLAGS_vsyscall.lds
+= -P
-C
-U
$(ARCH
)
61 vsyscall-flags
= -shared
-s
-Wl
,-soname
=linux-gate.so
.1 \
62 $(call ld-option
, -Wl
$(comma
)--hash-style
=sysv
)
63 SYSCFLAGS_vsyscall-sysenter.so
= $(vsyscall-flags
)
64 SYSCFLAGS_vsyscall-int80.so
= $(vsyscall-flags
)
66 $(obj
)/vsyscall-int80.so
$(obj
)/vsyscall-sysenter.so
: \
67 $(obj
)/vsyscall-
%.so
: $(src
)/vsyscall.lds \
68 $(obj
)/vsyscall-
%.o
$(obj
)/vsyscall-note.o FORCE
69 $(call if_changed
,syscall
)
71 # We also create a special relocatable object that should mirror the symbol
72 # table and layout of the linked DSO. With ld -R we can then refer to
73 # these symbols in the kernel code rather than hand-coded addresses.
74 extra-y
+= vsyscall-syms.o
75 $(obj
)/built-in.o
: $(obj
)/vsyscall-syms.o
76 $(obj
)/built-in.o
: ld_flags
+= -R
$(obj
)/vsyscall-syms.o
78 SYSCFLAGS_vsyscall-syms.o
= -r
79 $(obj
)/vsyscall-syms.o
: $(src
)/vsyscall.lds \
80 $(obj
)/vsyscall-sysenter.o
$(obj
)/vsyscall-note.o FORCE
81 $(call if_changed
,syscall
)
83 k8-y
+= ..
/..
/x86_64
/kernel
/k8.o
84 stacktrace-y
+= ..
/..
/x86_64
/kernel
/stacktrace.o