arch/i386/kernel/Makefile

   1 #
   2 # Makefile for the linux kernel.
   3 #
   4
   5 extra-y := head.o init_task.o vmlinux.lds
   6
   7 obj-y   := process.o semaphore.o signal.o entry.o traps.o irq.o vm86.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 dmi_scan.o bootflag.o \
  10                 doublefault.o quirks.o
  11
  12 obj-y                           += cpu/
  13 obj-y                           += timers/
  14 obj-$(CONFIG_ACPI_BOOT)         += acpi/
  15 obj-$(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-$(CONFIG_X86_NUMAQ)         += numaq.o
  27 obj-$(CONFIG_X86_SUMMIT_NUMA)   += summit.o
  28 obj-$(CONFIG_KPROBES)           += kprobes.o
  29 obj-$(CONFIG_MODULES)           += module.o
  30 obj-y                           += sysenter.o vsyscall.o
  31 obj-$(CONFIG_ACPI_SRAT)         += srat.o
  32 obj-$(CONFIG_HPET_TIMER)        += time_hpet.o
  33 obj-$(CONFIG_EFI)               += efi.o efi_stub.o
  34 obj-$(CONFIG_EARLY_PRINTK)      += early_printk.o
  35
  36 EXTRA_AFLAGS   := -traditional
  37
  38 obj-$(CONFIG_SCx200)            += scx200.o
  39
  40 # vsyscall.o contains the vsyscall DSO images as __initdata.
  41 # We must build both images before we can assemble it.
  42 # Note: kbuild does not track this dependency due to usage of .incbin
  43 $(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
  44 targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
  45 targets += vsyscall.lds
  46
  47 # The DSO images are built using a special linker script.
  48 quiet_cmd_syscall = SYSCALL $@
  49       cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
  50                           -Wl,-T,$(filter-out FORCE,$^) -o $@
  51
  52 export CPPFLAGS_vsyscall.lds += -P -C -U$(ARCH)
  53
  54 vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1
  55 SYSCFLAGS_vsyscall-sysenter.so  = $(vsyscall-flags)
  56 SYSCFLAGS_vsyscall-int80.so     = $(vsyscall-flags)
  57
  58 $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
  59 $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
  60         $(call if_changed,syscall)
  61
  62 # We also create a special relocatable object that should mirror the symbol
  63 # table and layout of the linked DSO.  With ld -R we can then refer to
  64 # these symbols in the kernel code rather than hand-coded addresses.
  65 extra-y += vsyscall-syms.o
  66 $(obj)/built-in.o: $(obj)/vsyscall-syms.o
  67 $(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
  68
  69 SYSCFLAGS_vsyscall-syms.o = -r
  70 $(obj)/vsyscall-syms.o: $(src)/vsyscall.lds $(obj)/vsyscall-sysenter.o FORCE
  71         $(call if_changed,syscall)