i386: prepare shared kernel/vsyscall-int80.S

# vsyscall_32.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_32.o: $(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so

$(obj)/vsyscall_32.o: $(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter.so

targets += $(foreach F,int80 sysenter,vsyscall-$F.o vsyscall-$F.so)

targets += vsyscall-note.o vsyscall_32.lds

vsyscall-flags = -shared -s -Wl,-soname=linux-gate.so.1 \

		 $(call ld-option, -Wl$(comma)--hash-style=sysv)

SYSCFLAGS_vsyscall-sysenter.so	= $(vsyscall-flags)

SYSCFLAGS_vsyscall-int80.so	= $(vsyscall-flags)

SYSCFLAGS_vsyscall-int80_32.so	= $(vsyscall-flags)

$(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so: \

$(obj)/vsyscall-int80_32.so $(obj)/vsyscall-sysenter.so: \

$(obj)/vsyscall-%.so: $(src)/vsyscall_32.lds \

		      $(obj)/vsyscall-%.o $(obj)/vsyscall-note.o FORCE

	$(call if_changed,syscall)

	.globl vsyscall_int80_start, vsyscall_int80_end

vsyscall_int80_start:

	.incbin "arch/i386/kernel/vsyscall-int80.so"

	.incbin "arch/i386/kernel/vsyscall-int80_32.so"

vsyscall_int80_end:

	.globl vsyscall_sysenter_start, vsyscall_sysenter_end

vsyscall_sysenter_start:

	.incbin "arch/i386/kernel/vsyscall-sysenter.so"

	.incbin "arch/i386/kernel/vsyscall-sysenter_32.so"

vsyscall_sysenter_end:

__FINIT