1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 2
3 PHONY := __default 3 PHONY := __default
4 __default: vmlinux 4 __default: vmlinux
5 5
6 include include/config/auto.conf 6 include include/config/auto.conf
7 include $(srctree)/scripts/Kbuild.include 7 include $(srctree)/scripts/Kbuild.include
8 8
9 # for c_flags 9 # for c_flags
10 include $(srctree)/scripts/Makefile.lib 10 include $(srctree)/scripts/Makefile.lib
11 11
12 targets := 12 targets :=
13 13
14 quiet_cmd_cc_o_c = CC $@ 14 quiet_cmd_cc_o_c = CC $@
15 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $ 15 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
16 16
17 %.o: %.c FORCE 17 %.o: %.c FORCE
18 $(call if_changed_dep,cc_o_c) 18 $(call if_changed_dep,cc_o_c)
19 19
20 ifdef CONFIG_MODULES 20 ifdef CONFIG_MODULES
>> 21 KASAN_SANITIZE_.vmlinux.export.o := n
>> 22 KCSAN_SANITIZE_.vmlinux.export.o := n
>> 23 GCOV_PROFILE_.vmlinux.export.o := n
21 targets += .vmlinux.export.o 24 targets += .vmlinux.export.o
22 vmlinux: .vmlinux.export.o 25 vmlinux: .vmlinux.export.o
23 endif 26 endif
24 27
25 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$( 28 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
26 29
27 # Final link of vmlinux with optional arch pas 30 # Final link of vmlinux with optional arch pass after final link
28 cmd_link_vmlinux = 31 cmd_link_vmlinux = \
29 $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFL 32 $< "$(LD)" "$(KBUILD_LDFLAGS)" "$(LDFLAGS_vmlinux)"; \
30 $(if $(ARCH_POSTLINK), $(MAKE) -f $(AR 33 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
31 34
32 targets += vmlinux 35 targets += vmlinux
33 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(K 36 vmlinux: scripts/link-vmlinux.sh vmlinux.o $(KBUILD_LDS) FORCE
34 +$(call if_changed_dep,link_vmlinux) 37 +$(call if_changed_dep,link_vmlinux)
35 38
36 # module.builtin.ranges !! 39 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
37 # -------------------------------------------- <<
38 ifdef CONFIG_BUILTIN_MODULE_RANGES <<
39 __default: modules.builtin.ranges <<
40 <<
41 quiet_cmd_modules_builtin_ranges = GEN $@ <<
42 cmd_modules_builtin_ranges = gawk -f $(r <<
43 <<
44 targets += modules.builtin.ranges <<
45 modules.builtin.ranges: $(srctree)/scripts/gen <<
46 modules.builtin vmlinu <<
47 $(call if_changed,modules_builtin_rang <<
48 <<
49 vmlinux.map: vmlinux <<
50 @: <<
51 <<
52 endif <<
53 <<
54 # Add FORCE to the prerequisites of a target t <<
55 # -------------------------------------------- 40 # ---------------------------------------------------------------------------
56 41
57 PHONY += FORCE 42 PHONY += FORCE
58 FORCE: 43 FORCE:
59 44
60 # Read all saved command lines and dependencie 45 # Read all saved command lines and dependencies for the $(targets) we
61 # may be building above, using $(if_changed{,_ 46 # may be building above, using $(if_changed{,_dep}). As an
62 # optimization, we don't need to read them if 47 # optimization, we don't need to read them if the target does not
63 # exist, we will rebuild anyway in that case. 48 # exist, we will rebuild anyway in that case.
64 49
65 existing-targets := $(wildcard $(sort $(target 50 existing-targets := $(wildcard $(sort $(targets)))
66 51
67 -include $(foreach f,$(existing-targets),$(dir 52 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
68 53
69 .PHONY: $(PHONY) 54 .PHONY: $(PHONY)
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