1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 # ============================================ 2 # ===========================================================================
3 # Module final link 3 # Module final link
4 # ============================================ 4 # ===========================================================================
5 5
6 PHONY := __modfinal 6 PHONY := __modfinal
7 __modfinal: 7 __modfinal:
8 8
9 include include/config/auto.conf <<
10 include $(srctree)/scripts/Kbuild.include 9 include $(srctree)/scripts/Kbuild.include
11 10
12 # for c_flags 11 # for c_flags
13 include $(srctree)/scripts/Makefile.lib 12 include $(srctree)/scripts/Makefile.lib
14 13
15 # find all modules listed in modules.order 14 # find all modules listed in modules.order
16 modules := $(call read-file, $(MODORDER)) !! 15 modules := $(sort $(shell cat $(MODORDER)))
17 16
18 __modfinal: $(modules:%.o=%.ko) !! 17 __modfinal: $(modules)
19 @: 18 @:
20 19
21 # modname and part-of-module are set to make c 20 # modname and part-of-module are set to make c_flags define proper module flags
22 modname = $(notdir $(@:.mod.o=)) 21 modname = $(notdir $(@:.mod.o=))
23 part-of-module = y 22 part-of-module = y
24 GCOV_PROFILE := n <<
25 KCSAN_SANITIZE := n <<
26 23
27 quiet_cmd_cc_o_c = CC [M] $@ 24 quiet_cmd_cc_o_c = CC [M] $@
28 cmd_cc_o_c = $(CC) $(filter-out $(CC_FLA !! 25 cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $<
29 26
30 %.mod.o: %.mod.c FORCE 27 %.mod.o: %.mod.c FORCE
31 $(call if_changed_dep,cc_o_c) 28 $(call if_changed_dep,cc_o_c)
32 29
>> 30 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
>> 31
33 quiet_cmd_ld_ko_o = LD [M] $@ 32 quiet_cmd_ld_ko_o = LD [M] $@
34 cmd_ld_ko_o += !! 33 cmd_ld_ko_o = \
35 $(LD) -r $(KBUILD_LDFLAGS) 34 $(LD) -r $(KBUILD_LDFLAGS) \
36 $(KBUILD_LDFLAGS_MODULE) $(LDF 35 $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
37 -T scripts/module.lds -o $@ $( !! 36 -T scripts/module.lds -o $@ $(filter %.o, $^); \
>> 37 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
38 38
39 quiet_cmd_btf_ko = BTF [M] $@ !! 39 $(modules): %.ko: %.o %.mod.o scripts/module.lds FORCE
40 cmd_btf_ko = !! 40 +$(call if_changed,ld_ko_o)
41 if [ ! -f vmlinux ]; then <<
42 printf "Skipping BTF generatio <<
43 else <<
44 LLVM_OBJCOPY="$(OBJCOPY)" $(PA <<
45 $(RESOLVE_BTFIDS) -b vmlinux $ <<
46 fi; <<
47 <<
48 # Same as newer-prereqs, but allows to exclude <<
49 newer_prereqs_except = $(filter-out $(PHONY) $ <<
50 <<
51 # Same as if_changed, but allows to exclude sp <<
52 if_changed_except = $(if $(call newer_prereqs_ <<
53 $(cmd); <<
54 printf '%s\n' 'savedcmd_$@ := $(make-c <<
55 <<
56 # Re-generate module BTFs if either module's . <<
57 %.ko: %.o %.mod.o scripts/module.lds $(and $(C <<
58 +$(call if_changed_except,ld_ko_o,vmli <<
59 ifdef CONFIG_DEBUG_INFO_BTF_MODULES <<
60 +$(if $(newer-prereqs),$(call cmd,btf_ <<
61 endif <<
62 41
63 targets += $(modules:%.o=%.ko) $(modules:%.o=% !! 42 targets += $(modules) $(modules:.ko=.mod.o)
64 43
65 # Add FORCE to the prerequisites of a target t !! 44 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
66 # -------------------------------------------- 45 # ---------------------------------------------------------------------------
67 46
68 PHONY += FORCE 47 PHONY += FORCE
69 FORCE: 48 FORCE:
70 49
71 # Read all saved command lines and dependencie 50 # Read all saved command lines and dependencies for the $(targets) we
72 # may be building above, using $(if_changed{,_ 51 # may be building above, using $(if_changed{,_dep}). As an
73 # optimization, we don't need to read them if 52 # optimization, we don't need to read them if the target does not
74 # exist, we will rebuild anyway in that case. 53 # exist, we will rebuild anyway in that case.
75 54
76 existing-targets := $(wildcard $(sort $(target 55 existing-targets := $(wildcard $(sort $(targets)))
77 56
78 -include $(foreach f,$(existing-targets),$(dir 57 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
79 58
80 .PHONY: $(PHONY) 59 .PHONY: $(PHONY)
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