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Commit | Line | Data |
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1 | # SPDX-License-Identifier: GPL-2.0 | |
2 | # The gate DSO image is built using a special linker script. | |
3 | ||
4 | targets += gate.so gate.lds gate.o gate-dummy.o | |
5 | ||
6 | obj-y += gate-syms.o | |
7 | ||
8 | CPPFLAGS_gate.lds := -P -C -U$(ARCH) | |
9 | ||
10 | quiet_cmd_gate = GATE $@ | |
11 | cmd_gate = $(CC) -nostdlib $(GATECFLAGS_$(@F)) -Wl,-T,$(filter-out FORCE,$^) -o $@ | |
12 | ||
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) | |
17 | ||
18 | GATECFLAGS_gate-dummy.o = -r | |
19 | $(obj)/gate-dummy.o: $(obj)/gate.lds $(obj)/gate.o FORCE | |
20 | $(call if_changed,gate) | |
21 | ||
22 | LDFLAGS_gate-syms.o := -r -R | |
23 | $(obj)/gate-syms.o: $(obj)/gate-dummy.o FORCE | |
24 | $(call if_changed,ld) | |
25 | ||
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 |