arch/i386/kernel/Makefile

   1 #
   2 # Makefile for the linux kernel.
   3 #
   4
   5 extra-y := head.o init_task.o
   6
   7 obj-y   := process.o semaphore.o signal.o entry.o traps.o irq.o vm86.o \
   8                 ptrace.o i8259.o ioport.o ldt.o setup.o time.o sys_i386.o \
   9                 pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \
  10                 doublefault.o
  11
  12 obj-y                           += cpu/
  13 obj-y                           += timers/
  14 obj-$(CONFIG_ACPI)              += acpi/
  15 obj-$(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-$(CONFIG_PM)                += suspend.o
  21 obj-$(CONFIG_APM)               += apm.o
  22 obj-$(CONFIG_X86_SMP)           += smp.o smpboot.o
  23 obj-$(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_SOFTWARE_SUSPEND)  += suspend.o suspend_asm.o
  28 obj-$(CONFIG_X86_NUMAQ)         += numaq.o
  29 obj-$(CONFIG_X86_SUMMIT)        += summit.o
  30 obj-$(CONFIG_EDD)               += edd.o
  31 obj-$(CONFIG_MODULES)           += module.o
  32 obj-y                           += sysenter.o vsyscall.o
  33 obj-$(CONFIG_ACPI_SRAT)         += srat.o
  34
  35 EXTRA_AFLAGS   := -traditional
  36
  37 obj-$(CONFIG_SCx200)            += scx200.o
  38
  39 # vsyscall.o contains the vsyscall DSO images as __initdata.
  40 # We must build both images before we can assemble it.
  41 # Note: kbuild does not track this dependency due to usage of .incbin
  42 $(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
  43 targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
  44
  45 # The DSO images are built using a special linker script.
  46 quiet_cmd_syscall = SYSCALL $@
  47       cmd_syscall = $(CC) -nostdlib $(SYSCFLAGS_$(@F)) \
  48                           -Wl,-T,$(filter-out FORCE,$^) -o $@
  49
  50 vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1
  51 SYSCFLAGS_vsyscall-sysenter.so  = $(vsyscall-flags)
  52 SYSCFLAGS_vsyscall-int80.so     = $(vsyscall-flags)
  53
  54 $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
  55 $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
  56         $(call if_changed,syscall)
  57
  58 # We also create a special relocatable object that should mirror the symbol
  59 # table and layout of the linked DSO.  With ld -R we can then refer to
  60 # these symbols in the kernel code rather than hand-coded addresses.
  61 extra-y += vsyscall-syms.o
  62 $(obj)/built-in.o: $(obj)/vsyscall-syms.o
  63 $(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
  64
  65 SYSCFLAGS_vsyscall-syms.o = -r
  66 $(obj)/vsyscall-syms.o: $(src)/vsyscall.lds $(obj)/vsyscall-sysenter.o FORCE
  67         $(call if_changed,syscall)