1 # SPDX-License-Identifier: GPL-2.0
2 # The gate DSO image is built using a special linker script.
4 targets += gate.so gate.lds gate.o gate-dummy.o
8 CPPFLAGS_gate.lds := -P -C -U$(ARCH)
10 quiet_cmd_gate = GATE $@
11 cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
13 GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
14 $(call cc-ldoption, -Wl$(comma)--hash-style=sysv)
15 $(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
16 $(call if_changed,gate)
18 GATECFLAGS_gate-dummy.o = -r
19 $(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE
20 $(call if_changed,gate)
22 LDFLAGS_gate-syms.o := -r -R
23 $(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE
26 # gate-data.o contains the gate DSO image as data in section .data..gate.
27 # We must build gate.so before we can assemble it.
28 # Note: kbuild does not track this dependency due to usage of .incbin
29 $(obj)/gate-data.o: $(obj)/gate.so