1# The gate DSO image is built using a special linker script.
2
3targets += gate.so gate-syms.o
4
5extra-y += gate.so gate-syms.o gate.lds gate.o
6
7CPPFLAGS_gate.lds := -P -C -U$(ARCH)
8
9quiet_cmd_gate = GATE $@
10      cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
11
12GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
13		     $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
14$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
15	$(call if_changed,gate)
16
17$(obj)/built-in.o: $(obj)/gate-syms.o
18$(obj)/built-in.o: ld_flags += -R $(obj)/gate-syms.o
19
20GATECFLAGS_gate-syms.o = -r
21$(obj)/gate-syms.o: $(obj)/gate.lds $(obj)/gate.o FORCE
22	$(call if_changed,gate)
23
24# gate-data.o contains the gate DSO image as data in section .data..gate.
25# We must build gate.so before we can assemble it.
26# Note: kbuild does not track this dependency due to usage of .incbin
27$(obj)/gate-data.o: $(obj)/gate.so
28