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#
# Makefile for the linux kernel.
#
XENARCH := $(subst ",,$(CONFIG_XENARCH))
CFLAGS += -Iarch/$(XENARCH)/kernel
extra-y := head.o init_task.o
obj-y := process.o signal.o entry.o traps.o \
time.o ioport.o ldt.o setup.o \
pci-dma.o i386_ksyms.o irq.o
c-obj-y := semaphore.o vm86.o \
ptrace.o sys_i386.o \
i387.o dmi_scan.o bootflag.o \
doublefault.o quirks.o
s-obj-y :=
obj-y += cpu/
obj-y += timers/
obj-$(CONFIG_ACPI_BOOT) += acpi/
#c-obj-$(CONFIG_X86_BIOS_REBOOT) += reboot.o
c-obj-$(CONFIG_MCA) += mca.o
c-obj-$(CONFIG_X86_MSR) += msr.o
c-obj-$(CONFIG_X86_CPUID) += cpuid.o
obj-$(CONFIG_MICROCODE) += microcode.o
c-obj-$(CONFIG_APM) += apm.o
obj-$(CONFIG_X86_SMP) += smp.o smpboot.o
#obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o
obj-$(CONFIG_X86_MPPARSE) += mpparse.o
obj-$(CONFIG_X86_LOCAL_APIC) += apic.o
c-obj-$(CONFIG_X86_LOCAL_APIC) += nmi.o
obj-$(CONFIG_X86_IO_APIC) += io_apic.o
c-obj-$(CONFIG_X86_NUMAQ) += numaq.o
c-obj-$(CONFIG_X86_SUMMIT_NUMA) += summit.o
c-obj-$(CONFIG_MODULES) += module.o
c-obj-y += sysenter.o
obj-y += vsyscall.o
c-obj-$(CONFIG_ACPI_SRAT) += srat.o
c-obj-$(CONFIG_HPET_TIMER) += time_hpet.o
c-obj-$(CONFIG_EFI) += efi.o efi_stub.o
c-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
EXTRA_AFLAGS := -traditional
c-obj-$(CONFIG_SCx200) += scx200.o
# vsyscall.o contains the vsyscall DSO images as __initdata.
# We must build both images before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin
$(obj)/vsyscall.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so
targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)
targets += vsyscall.lds
# The DSO images are built using a special linker script.
quiet_cmd_syscall = SYSCALL $@
cmd_syscall = $(CC) -nostdlib -m32 $(SYSCFLAGS_$(@F)) \
-Wl,-T,$(filter-out FORCE,$^) -o $@
export CPPFLAGS_vsyscall.lds += -P -C -U$(ARCH)
vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1
SYSCFLAGS_vsyscall-sysenter.so = $(vsyscall-flags)
SYSCFLAGS_vsyscall-int80.so = $(vsyscall-flags)
$(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \
$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE
$(call if_changed,syscall)
# We also create a special relocatable object that should mirror the symbol
# table and layout of the linked DSO. With ld -R we can then refer to
# these symbols in the kernel code rather than hand-coded addresses.
extra-y += vsyscall-syms.o
$(obj)/built-in.o: $(obj)/vsyscall-syms.o
$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
SYSCFLAGS_vsyscall-syms.o = -r
$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds $(obj)/vsyscall-sysenter.o FORCE
$(call if_changed,syscall)
c-link := init_task.o
s-link := vsyscall-int80.o vsyscall-sysenter.o vsyscall-sigreturn.o vsyscall.lds.o
$(patsubst %.o,$(obj)/%.c,$(c-obj-y) $(c-link)) $(patsubst %.o,$(obj)/%.S,$(s-obj-y) $(s-link)):
@ln -fsn $(srctree)/arch/i386/kernel/$(notdir $@) $@
$(obj)/vsyscall-int80.S: $(obj)/vsyscall-sigreturn.S
obj-y += $(c-obj-y) $(s-obj-y)
clean-files += $(patsubst %.o,%.c,$(c-obj-y) $(c-obj-) $(c-link))
clean-files += $(patsubst %.o,%.S,$(s-obj-y) $(s-obj-) $(s-link))
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