2 # Makefile for the linux kernel.
5 extra-y := head_32.o init_task.o vmlinux.lds
6 CPPFLAGS_vmlinux.lds += -Ui386
8 obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
9 ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
10 pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
11 quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o
13 obj-$(CONFIG_STACKTRACE) += stacktrace.o
16 obj-$(CONFIG_X86_BIOS_REBOOT) += reboot_32.o
17 obj-$(CONFIG_MCA) += mca_32.o
18 obj-$(CONFIG_X86_MSR) += msr.o
19 obj-$(CONFIG_X86_CPUID) += cpuid.o
20 obj-$(CONFIG_MICROCODE) += microcode.o
21 obj-$(CONFIG_PCI) += early-quirks.o
22 obj-$(CONFIG_APM) += apm_32.o
23 obj-$(CONFIG_X86_SMP) += smp_32.o smpboot_32.o tsc_sync.o
24 obj-$(CONFIG_SMP) += smpcommon_32.o
25 obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_32.o
26 obj-$(CONFIG_X86_MPPARSE) += mpparse_32.o
27 obj-$(CONFIG_X86_LOCAL_APIC) += apic_32.o nmi_32.o
28 obj-$(CONFIG_X86_IO_APIC) += io_apic_32.o
29 obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
30 obj-$(CONFIG_KEXEC) += machine_kexec_32.o relocate_kernel_32.o crash.o
31 obj-$(CONFIG_CRASH_DUMP) += crash_dump_32.o
32 obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
33 obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
34 obj-$(CONFIG_KPROBES) += kprobes_32.o
35 obj-$(CONFIG_MODULES) += module_32.o
36 obj-y += sysenter_32.o vsyscall_32.o
37 obj-$(CONFIG_ACPI_SRAT) += srat_32.o
38 obj-$(CONFIG_EFI) += efi_32.o efi_stub_32.o
39 obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
40 obj-$(CONFIG_VM86) += vm86_32.o
41 obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
42 obj-$(CONFIG_HPET_TIMER) += hpet.o
43 obj-$(CONFIG_K8_NB) += k8.o
44 obj-$(CONFIG_MGEODE_LX) += geode_32.o mfgpt_32.o
46 obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
47 obj-$(CONFIG_PARAVIRT) += paravirt_32.o
50 obj-$(CONFIG_SCx200) += scx200_32.o
52 # vsyscall_32.o contains the vsyscall DSO images as __initdata.
53 # We must build both images before we can assemble it.
54 # Note: kbuild does not track this dependency due to usage of .incbin
55 $(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
56 targets += $(foreach F,int80 sysenter,vsyscall-$F_32.o vsyscall-$F_32.so)
57 targets += vsyscall-note_32.o vsyscall_32.lds
59 # The DSO images are built using a special linker script.
60 quiet_cmd_syscall = SYSCALL $@
61 cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
62 -Wl,-T,$(filter-out FORCE,$^) -o $@
64 export CPPFLAGS_vsyscall_32.lds += -P -C -Ui386
66 vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
67 $(call ld-option, -Wl$(comma)--hash-style=sysv)
68 SYSCFLAGS_vsyscall-sysenter_32.so = $(vsyscall-flags)
69 SYSCFLAGS_vsyscall-int80_32.so = $(vsyscall-flags)
71 $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so: \
72 $(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
73 $(obj)/vsyscall-%.o $(obj)/vsyscall-note_32.o FORCE
74 $(call if_changed,syscall)
76 # We also create a special relocatable object that should mirror the symbol
77 # table and layout of the linked DSO. With ld -R we can then refer to
78 # these symbols in the kernel code rather than hand-coded addresses.
79 extra-y += vsyscall-syms.o
80 $(obj)/built-in.o: $(obj)/vsyscall-syms.o
81 $(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
83 SYSCFLAGS_vsyscall-syms.o = -r
84 $(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
85 $(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
86 $(call if_changed,syscall)