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#
# Makefile for the ia32 kernel emulation subsystem.
#
XENARCH := $(subst ",,$(CONFIG_XENARCH))
CFLAGS += -Iarch/$(XENARCH)/kernel
obj-$(CONFIG_IA32_EMULATION) := ia32entry.o syscall32.o
c-obj-$(CONFIG_IA32_EMULATION) := sys_ia32.o ia32_ioctl.o \
ia32_signal.o tls32.o \
ia32_binfmt.o fpu32.o ptrace32.o
s-obj-y :=
sysv-$(CONFIG_SYSVIPC) := ipc32.o
c-obj-$(CONFIG_IA32_EMULATION) += $(sysv-y)
c-obj-$(CONFIG_IA32_AOUT) += ia32_aout.o
$(obj)/syscall32.o: $(src)/syscall32.c \
$(foreach F,int80 sysenter syscall,$(obj)/vsyscall-$F.so)
# Teach kbuild about targets
targets := $(foreach F,int80 sysenter syscall,vsyscall-$F.o vsyscall-$F.so)
# The DSO images are built using a special linker script
quiet_cmd_syscall = SYSCALL $@
cmd_syscall = $(CC) -m32 -nostdlib -shared -s \
-Wl,-soname=linux-gate.so.1 -o $@ \
-Wl,-T,$(filter-out FORCE,$^)
$(obj)/vsyscall-int80.so $(obj)/vsyscall-sysenter.so $(obj)/vsyscall-syscall.so: \
$(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(src)/vsyscall-%.o FORCE
$(call if_changed,syscall)
AFLAGS_vsyscall-int80.o = -m32
AFLAGS_vsyscall-sysenter.o = -m32
AFLAGS_vsyscall-syscall.o = -m32
CFLAGS_ia32_ioctl.o += -Ifs/
s-link := vsyscall-syscall.o vsyscall-sysenter.o vsyscall-sigreturn.o
$(src)/vsyscall.lds:
@ln -fsn $(srctree)/arch/x86_64/ia32/$(notdir $@) $@
$(patsubst %.o,$(obj)/%.c,$(c-obj-y) $(c-link)) $(patsubst %.o,$(obj)/%.S,$(s-obj-y) $(s-link)):
@ln -fsn $(srctree)/arch/x86_64/ia32/$(notdir $@) $@
$(obj)/vsyscall-int80.S: $(obj)/vsyscall-sigreturn.S
$(obj)/vsyscall-sysenter.S: $(obj)/vsyscall-sigreturn.S
$(obj)/vsyscall-syscall.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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