2 # Makefile for the linux kernel.
5 extra-y := head_32.o init_task_32.o vmlinux.lds
7 obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
8 ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
9 pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
10 quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o
12 obj-$(CONFIG_STACKTRACE) += stacktrace.o
15 obj-$(CONFIG_X86_BIOS_REBOOT) += reboot_32.o
16 obj-$(CONFIG_MCA) += mca_32.o
17 obj-$(CONFIG_X86_MSR) += msr.o
18 obj-$(CONFIG_X86_CPUID) += cpuid.o
19 obj-$(CONFIG_MICROCODE) += microcode.o
20 obj-$(CONFIG_APM) += apm_32.o
21 obj-$(CONFIG_X86_SMP) += smp_32.o smpboot_32.o tsc_sync.o
22 obj-$(CONFIG_SMP) += smpcommon_32.o
23 obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_32.o
24 obj-$(CONFIG_X86_MPPARSE) += mpparse_32.o
25 obj-$(CONFIG_X86_LOCAL_APIC) += apic_32.o nmi_32.o
26 obj-$(CONFIG_X86_IO_APIC) += io_apic_32.o
27 obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
28 obj-$(CONFIG_KEXEC) += machine_kexec_32.o relocate_kernel_32.o crash_32.o
29 obj-$(CONFIG_CRASH_DUMP) += crash_dump_32.o
30 obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
31 obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
32 obj-$(CONFIG_KPROBES) += kprobes_32.o
33 obj-$(CONFIG_MODULES) += module_32.o
34 obj-y += sysenter_32.o vsyscall_32.o
35 obj-$(CONFIG_ACPI_SRAT) += srat_32.o
36 obj-$(CONFIG_EFI) += efi_32.o efi_stub_32.o
37 obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
38 obj-$(CONFIG_VM86) += vm86_32.o
39 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
40 obj-$(CONFIG_HPET_TIMER) += hpet.o
41 obj-$(CONFIG_K8_NB) += k8.o
42 obj-$(CONFIG_MGEODE_LX) += geode_32.o mfgpt_32.o
44 obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
45 obj-$(CONFIG_PARAVIRT) += paravirt_32.o
48 obj-$(CONFIG_SCx200) += scx200_32.o
50 # vsyscall_32.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_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
54 targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
55 targets += vsyscall-note_32.o vsyscall_32.lds
57 # The DSO images are built using a special linker script.
58 quiet_cmd_syscall = SYSCALL $@
59 cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
60 -Wl,-T,$(filter-out FORCE,$^) -o $@
62 export CPPFLAGS_vsyscall_32.lds += -P -C -U$(ARCH)
64 vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
65 $(call ld-option, -Wl$(comma)--hash-style=sysv)
66 SYSCFLAGS_vsyscall-sysenter_32.so = $(vsyscall-flags)
67 SYSCFLAGS_vsyscall-int80_32.so = $(vsyscall-flags)
69 $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so: \
70 $(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
71 $(obj)/vsyscall-%.o $(obj)/vsyscall-note_32.o FORCE
72 $(call if_changed,syscall)
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.
77 extra-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
81 SYSCFLAGS_vsyscall-syms.o = -r
82 $(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
83 $(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
84 $(call if_changed,syscall)