30 lines
934 B
Makefile
30 lines
934 B
Makefile
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# SPDX-License-Identifier: GPL-2.0
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# The gate DSO image is built using a special linker script.
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targets += gate.so gate.lds gate.o gate-dummy.o
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obj-y += gate-syms.o
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CPPFLAGS_gate.lds := -P -C -U$(ARCH)
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quiet_cmd_gate = GATE $@
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cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@
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GATECFLAGS_gate.so = -shared -s -Wl,-soname=linux-gate.so.1 \
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-Wl,--hash-style=sysv
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$(obj)/gate.so: $(obj)/gate.lds $(obj)/gate.o FORCE
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$(call if_changed,gate)
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GATECFLAGS_gate-dummy.o = -r
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$(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE
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$(call if_changed,gate)
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LDFLAGS_gate-syms.o := -r -R
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$(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE
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$(call if_changed,ld)
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# gate-data.o contains the gate DSO image as data in section .data..gate.
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# We must build gate.so before we can assemble it.
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# Note: kbuild does not track this dependency due to usage of .incbin
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$(obj)/gate-data.o: $(obj)/gate.so
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