d746d647f3
For x86 ARCH may say i386 or x86_64 and soon x86. Rely on CONFIG_X64_32 to select between 32/64 or just hardcode the value as appropriate. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: "H. Peter Anvin" <hpa@zytor.com>
88 lines
3.3 KiB
Text
88 lines
3.3 KiB
Text
#
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# Makefile for the linux kernel.
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#
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extra-y := head_32.o init_task.o vmlinux.lds
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CPPFLAGS_vmlinux.lds += -Ui386
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obj-y := process_32.o signal_32.o entry_32.o traps_32.o irq_32.o \
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ptrace_32.o time_32.o ioport_32.o ldt_32.o setup_32.o i8259_32.o sys_i386_32.o \
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pci-dma_32.o i386_ksyms_32.o i387_32.o bootflag.o e820_32.o\
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quirks.o i8237.o topology.o alternative.o i8253.o tsc_32.o
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obj-$(CONFIG_STACKTRACE) += stacktrace.o
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obj-y += cpu/
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obj-y += acpi/
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obj-$(CONFIG_X86_BIOS_REBOOT) += reboot_32.o
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obj-$(CONFIG_MCA) += mca_32.o
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obj-$(CONFIG_X86_MSR) += msr.o
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obj-$(CONFIG_X86_CPUID) += cpuid.o
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obj-$(CONFIG_MICROCODE) += microcode.o
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obj-$(CONFIG_PCI) += early-quirks.o
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obj-$(CONFIG_APM) += apm_32.o
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obj-$(CONFIG_X86_SMP) += smp_32.o smpboot_32.o tsc_sync.o
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obj-$(CONFIG_SMP) += smpcommon_32.o
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obj-$(CONFIG_X86_TRAMPOLINE) += trampoline_32.o
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obj-$(CONFIG_X86_MPPARSE) += mpparse_32.o
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obj-$(CONFIG_X86_LOCAL_APIC) += apic_32.o nmi_32.o
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obj-$(CONFIG_X86_IO_APIC) += io_apic_32.o
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obj-$(CONFIG_X86_REBOOTFIXUPS) += reboot_fixups_32.o
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obj-$(CONFIG_KEXEC) += machine_kexec_32.o relocate_kernel_32.o crash.o
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obj-$(CONFIG_CRASH_DUMP) += crash_dump_32.o
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obj-$(CONFIG_X86_NUMAQ) += numaq_32.o
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obj-$(CONFIG_X86_SUMMIT_NUMA) += summit_32.o
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obj-$(CONFIG_KPROBES) += kprobes_32.o
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obj-$(CONFIG_MODULES) += module_32.o
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obj-y += sysenter_32.o vsyscall_32.o
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obj-$(CONFIG_ACPI_SRAT) += srat_32.o
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obj-$(CONFIG_EFI) += efi_32.o efi_stub_32.o
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obj-$(CONFIG_DOUBLEFAULT) += doublefault_32.o
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obj-$(CONFIG_VM86) += vm86_32.o
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obj-$(CONFIG_EARLY_PRINTK) += early_printk.o
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obj-$(CONFIG_HPET_TIMER) += hpet.o
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obj-$(CONFIG_K8_NB) += k8.o
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obj-$(CONFIG_MGEODE_LX) += geode_32.o mfgpt_32.o
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obj-$(CONFIG_VMI) += vmi_32.o vmiclock_32.o
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obj-$(CONFIG_PARAVIRT) += paravirt_32.o
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obj-y += pcspeaker.o
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obj-$(CONFIG_SCx200) += scx200_32.o
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# vsyscall_32.o contains the vsyscall DSO images as __initdata.
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# We must build both images before we can assemble it.
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# Note: kbuild does not track this dependency due to usage of .incbin
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$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so
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targets += $(foreach F,int80 sysenter,vsyscall-$F_32.o vsyscall-$F_32.so)
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targets += vsyscall-note_32.o vsyscall_32.lds
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# The DSO images are built using a special linker script.
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quiet_cmd_syscall = SYSCALL $@
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cmd_syscall = $(CC) -m elf_i386 -nostdlib $(SYSCFLAGS_$(@F)) \
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-Wl,-T,$(filter-out FORCE,$^) -o $@
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export CPPFLAGS_vsyscall_32.lds += -P -C -Ui386
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vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \
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$(call ld-option, -Wl$(comma)--hash-style=sysv)
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SYSCFLAGS_vsyscall-sysenter_32.so = $(vsyscall-flags)
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SYSCFLAGS_vsyscall-int80_32.so = $(vsyscall-flags)
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$(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter_32.so: \
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$(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \
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$(obj)/vsyscall-%.o $(obj)/vsyscall-note_32.o FORCE
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$(call if_changed,syscall)
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# We also create a special relocatable object that should mirror the symbol
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# table and layout of the linked DSO. With ld -R we can then refer to
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# these symbols in the kernel code rather than hand-coded addresses.
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extra-y += vsyscall-syms.o
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$(obj)/built-in.o: $(obj)/vsyscall-syms.o
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$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o
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SYSCFLAGS_vsyscall-syms.o = -r
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$(obj)/vsyscall-syms.o: $(src)/vsyscall_32.lds \
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$(obj)/vsyscall-sysenter_32.o $(obj)/vsyscall-note_32.o FORCE
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$(call if_changed,syscall)
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