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
33 $(extmod_prefix).module-common.o: $(srctree)/s !! 30 ARCH_POSTLINK := $(wildcard $(srctree)/arch/$(SRCARCH)/Makefile.postlink)
34 $(call if_changed_dep,cc_o_c) <<
35 31
36 quiet_cmd_ld_ko_o = LD [M] $@ 32 quiet_cmd_ld_ko_o = LD [M] $@
37 cmd_ld_ko_o = !! 33 cmd_ld_ko_o = \
38 $(LD) -r $(KBUILD_LDFLAGS) 34 $(LD) -r $(KBUILD_LDFLAGS) \
39 $(KBUILD_LDFLAGS_MODULE) $(LDF 35 $(KBUILD_LDFLAGS_MODULE) $(LDFLAGS_MODULE) \
40 -T scripts/module.lds -o $@ $( !! 36 $(addprefix -T , $(KBUILD_LDS_MODULE)) \
>> 37 -o $@ $(filter %.o, $^); \
>> 38 $(if $(ARCH_POSTLINK), $(MAKE) -f $(ARCH_POSTLINK) $@, true)
41 39
42 quiet_cmd_btf_ko = BTF [M] $@ !! 40 $(modules): %.ko: %.o %.mod.o $(KBUILD_LDS_MODULE) FORCE
43 cmd_btf_ko = !! 41 +$(call if_changed,ld_ko_o)
44 if [ ! -f vmlinux ]; then <<
45 printf "Skipping BTF generatio <<
46 else <<
47 LLVM_OBJCOPY="$(OBJCOPY)" $(PA <<
48 $(RESOLVE_BTFIDS) -b vmlinux $ <<
49 fi; <<
50 <<
51 # Same as newer-prereqs, but allows to exclude <<
52 newer_prereqs_except = $(filter-out $(PHONY) $ <<
53 <<
54 # Same as if_changed, but allows to exclude sp <<
55 if_changed_except = $(if $(call newer_prereqs_ <<
56 $(cmd); <<
57 printf '%s\n' 'savedcmd_$@ := $(make-c <<
58 <<
59 # Re-generate module BTFs if either module's . <<
60 %.ko: %.o %.mod.o $(extmod_prefix).module-comm <<
61 +$(call if_changed_except,ld_ko_o,vmli <<
62 ifdef CONFIG_DEBUG_INFO_BTF_MODULES <<
63 +$(if $(newer-prereqs),$(call cmd,btf_ <<
64 endif <<
65 42
66 targets += $(modules:%.o=%.ko) $(modules:%.o=% !! 43 targets += $(modules) $(modules:.ko=.mod.o)
67 44
68 # Add FORCE to the prerequisites of a target t !! 45 # Add FORCE to the prequisites of a target to force it to be always rebuilt.
69 # -------------------------------------------- 46 # ---------------------------------------------------------------------------
70 47
71 PHONY += FORCE 48 PHONY += FORCE
72 FORCE: 49 FORCE:
73 50
74 # Read all saved command lines and dependencie 51 # Read all saved command lines and dependencies for the $(targets) we
75 # may be building above, using $(if_changed{,_ 52 # may be building above, using $(if_changed{,_dep}). As an
76 # optimization, we don't need to read them if 53 # optimization, we don't need to read them if the target does not
77 # exist, we will rebuild anyway in that case. 54 # exist, we will rebuild anyway in that case.
78 55
79 existing-targets := $(wildcard $(sort $(target 56 existing-targets := $(wildcard $(sort $(targets)))
80 57
81 -include $(foreach f,$(existing-targets),$(dir 58 -include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
82 59
83 .PHONY: $(PHONY) 60 .PHONY: $(PHONY)
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