# SPDX-License-Identifier: GPL-2.0
# The gate DSO image is built using a special linker script.

targets += gate.so gate.lds gate.o gate-dummy.o

obj-y += gate-syms.o

CPPFLAGS_gate.lds := -P -C -U$(ARCH)

quiet_cmd_gate = GATE    $@
      cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@

GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
		     $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
	$(call if_changed,gate)

GATECFLAGS_gate-dummy.o = -r
$(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE
	$(call if_changed,gate)

LDFLAGS_gate-syms.o := -r -R
$(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE
	$(call if_changed,ld)

# gate-data.o contains the gate DSO image as data in section .data..gate.
# We must build gate.so before we can assemble it.
# Note: kbuild does not track this dependency due to usage of .incbin
$(obj)/gate-data.o: $(obj)/gate.so