| # |
| # Makefile for the linux kernel. |
| # |
| |
| extra-y := head.o init_task.o vmlinux.lds |
| |
| obj-y := process.o semaphore.o signal.o entry.o traps.o irq.o \ |
| ptrace.o time.o ioport.o ldt.o setup.o i8259.o sys_i386.o \ |
| pci-dma.o i386_ksyms.o i387.o dmi_scan.o bootflag.o \ |
| quirks.o i8237.o |
| |
| obj-y += cpu/ |
| obj-y += timers/ |
| obj-$(CONFIG_ACPI) += acpi/ |
| obj-$(CONFIG_X86_BIOS_REBOOT) += reboot.o |
| obj-$(CONFIG_MCA) += mca.o |
| obj-$(CONFIG_X86_MSR) += msr.o |
| obj-$(CONFIG_X86_CPUID) += cpuid.o |
| obj-$(CONFIG_MICROCODE) += microcode.o |
| 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-$(CONFIG_X86_LOCAL_APIC) += apic.o nmi.o |
| obj-$(CONFIG_X86_IO_APIC) += io_apic.o |
| obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups.o |
| obj-$(CONFIG_KEXEC) += machine_kexec.o relocate_kernel.o crash.o |
| obj-$(CONFIG_X86_NUMAQ) += numaq.o |
| obj-$(CONFIG_X86_SUMMIT_NUMA) += summit.o |
| obj-$(CONFIG_KPROBES) += kprobes.o |
| obj-$(CONFIG_MODULES) += module.o |
| obj-y += sysenter.o vsyscall.o |
| obj-$(CONFIG_ACPI_SRAT) += srat.o |
| obj-$(CONFIG_HPET_TIMER) += time_hpet.o |
| obj-$(CONFIG_EFI) += efi.o efi_stub.o |
| obj-$(CONFIG_DOUBLEFAULT) += doublefault.o |
| obj-$(CONFIG_VM86) += vm86.o |
| obj-$(CONFIG_EARLY_PRINTK) += early_printk.o |
| |
| EXTRA_AFLAGS := -traditional |
| |
| 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-note.o vsyscall.lds |
| |
| # The DSO images are built using a special linker script. |
| quiet_cmd_syscall = SYSCALL $@ |
| cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@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 $(obj)/vsyscall-note.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 $(obj)/vsyscall-note.o FORCE |
| $(call if_changed,syscall) |