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Commit | Line | Data |
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83d290c5 | 1 | # SPDX-License-Identifier: GPL-2.0 |
22433fc5 MY |
2 | # ========================================================================== |
3 | # Building | |
4 | # ========================================================================== | |
5 | ||
6825a95b | 6 | # Modified for U-Boot |
f86ca5ad SG |
7 | prefix := vpl |
8 | src := $(patsubst $(prefix)/%,%,$(obj)) | |
9 | ifeq ($(obj),$(src)) | |
51148790 MY |
10 | prefix := tpl |
11 | src := $(patsubst $(prefix)/%,%,$(obj)) | |
12 | ifeq ($(obj),$(src)) | |
13 | prefix := spl | |
14 | src := $(patsubst $(prefix)/%,%,$(obj)) | |
15 | ifeq ($(obj),$(src)) | |
16 | prefix := . | |
17 | endif | |
6825a95b | 18 | endif |
f86ca5ad | 19 | endif |
22433fc5 MY |
20 | |
21 | PHONY := __build | |
22 | __build: | |
23 | ||
24 | # Init all relevant variables used in kbuild files so | |
25 | # 1) they have correct type | |
26 | # 2) they do not inherit any value from the environment | |
27 | obj-y := | |
28 | obj-m := | |
29 | lib-y := | |
30 | lib-m := | |
31 | always := | |
32 | targets := | |
33 | subdir-y := | |
34 | subdir-m := | |
35 | EXTRA_AFLAGS := | |
36 | EXTRA_CFLAGS := | |
37 | EXTRA_CPPFLAGS := | |
38 | EXTRA_LDFLAGS := | |
39 | asflags-y := | |
40 | ccflags-y := | |
41 | cppflags-y := | |
42 | ldflags-y := | |
43 | ||
44 | subdir-asflags-y := | |
45 | subdir-ccflags-y := | |
46 | ||
47 | # Read auto.conf if it exists, otherwise ignore | |
51148790 | 48 | # Modified for U-Boot |
e02ee254 | 49 | -include include/config/auto.conf |
51148790 | 50 | -include $(prefix)/include/autoconf.mk |
01072b44 | 51 | |
22433fc5 MY |
52 | include scripts/Kbuild.include |
53 | ||
22433fc5 MY |
54 | # The filename Kbuild has precedence over Makefile |
55 | kbuild-dir := $(if $(filter /%,$(src)),$(src),$(srctree)/$(src)) | |
56 | kbuild-file := $(if $(wildcard $(kbuild-dir)/Kbuild),$(kbuild-dir)/Kbuild,$(kbuild-dir)/Makefile) | |
57 | include $(kbuild-file) | |
58 | ||
026f9cf2 MY |
59 | # Added for U-Boot |
60 | asflags-y += $(PLATFORM_CPPFLAGS) | |
61 | ccflags-y += $(PLATFORM_CPPFLAGS) | |
62 | cppflags-y += $(PLATFORM_CPPFLAGS) | |
63 | ||
22433fc5 MY |
64 | include scripts/Makefile.lib |
65 | ||
22433fc5 | 66 | # Do not include host rules unless needed |
587e4a42 | 67 | ifneq ($(hostprogs-y)$(hostprogs-m)$(hostlibs-y)$(hostlibs-m)$(hostcxxlibs-y)$(hostcxxlibs-m),) |
22433fc5 MY |
68 | include scripts/Makefile.host |
69 | endif | |
70 | ||
22433fc5 MY |
71 | ifndef obj |
72 | $(warning kbuild: Makefile.build is included improperly) | |
73 | endif | |
74 | ||
75 | # =========================================================================== | |
76 | ||
176d0982 | 77 | ifneq ($(strip $(lib-y) $(lib-m) $(lib-)),) |
22433fc5 MY |
78 | lib-target := $(obj)/lib.a |
79 | endif | |
80 | ||
176d0982 | 81 | ifneq ($(strip $(obj-y) $(obj-m) $(obj-) $(subdir-m) $(lib-target)),) |
22433fc5 MY |
82 | builtin-target := $(obj)/built-in.o |
83 | endif | |
84 | ||
85 | modorder-target := $(obj)/modules.order | |
86 | ||
87 | # We keep a list of all modules in $(MODVERDIR) | |
88 | ||
89 | __build: $(if $(KBUILD_BUILTIN),$(builtin-target) $(lib-target) $(extra-y)) \ | |
90 | $(if $(KBUILD_MODULES),$(obj-m) $(modorder-target)) \ | |
91 | $(subdir-ym) $(always) | |
92 | @: | |
93 | ||
94 | # Linus' kernel sanity checking tool | |
473fc279 TR |
95 | ifeq ($(KBUILD_CHECKSRC),1) |
96 | quiet_cmd_checksrc = CHECK $< | |
97 | cmd_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ; | |
98 | else ifeq ($(KBUILD_CHECKSRC),2) | |
99 | quiet_cmd_force_checksrc = CHECK $< | |
100 | cmd_force_checksrc = $(CHECK) $(CHECKFLAGS) $(c_flags) $< ; | |
22433fc5 MY |
101 | endif |
102 | ||
103 | # Do section mismatch analysis for each module/built-in.o | |
104 | ifdef CONFIG_DEBUG_SECTION_MISMATCH | |
105 | cmd_secanalysis = ; scripts/mod/modpost $@ | |
106 | endif | |
107 | ||
108 | # Compile C sources (.c) | |
109 | # --------------------------------------------------------------------------- | |
110 | ||
111 | # Default is built-in, unless we know otherwise | |
112 | modkern_cflags = \ | |
113 | $(if $(part-of-module), \ | |
114 | $(KBUILD_CFLAGS_MODULE) $(CFLAGS_MODULE), \ | |
115 | $(KBUILD_CFLAGS_KERNEL) $(CFLAGS_KERNEL)) | |
116 | quiet_modtag := $(empty) $(empty) | |
117 | ||
118 | $(real-objs-m) : part-of-module := y | |
119 | $(real-objs-m:.o=.i) : part-of-module := y | |
120 | $(real-objs-m:.o=.s) : part-of-module := y | |
121 | $(real-objs-m:.o=.lst): part-of-module := y | |
122 | ||
123 | $(real-objs-m) : quiet_modtag := [M] | |
124 | $(real-objs-m:.o=.i) : quiet_modtag := [M] | |
125 | $(real-objs-m:.o=.s) : quiet_modtag := [M] | |
126 | $(real-objs-m:.o=.lst): quiet_modtag := [M] | |
127 | ||
128 | $(obj-m) : quiet_modtag := [M] | |
129 | ||
130 | # Default for not multi-part modules | |
131 | modname = $(basetarget) | |
132 | ||
133 | $(multi-objs-m) : modname = $(modname-multi) | |
134 | $(multi-objs-m:.o=.i) : modname = $(modname-multi) | |
135 | $(multi-objs-m:.o=.s) : modname = $(modname-multi) | |
136 | $(multi-objs-m:.o=.lst) : modname = $(modname-multi) | |
137 | $(multi-objs-y) : modname = $(modname-multi) | |
138 | $(multi-objs-y:.o=.i) : modname = $(modname-multi) | |
139 | $(multi-objs-y:.o=.s) : modname = $(modname-multi) | |
140 | $(multi-objs-y:.o=.lst) : modname = $(modname-multi) | |
141 | ||
142 | quiet_cmd_cc_s_c = CC $(quiet_modtag) $@ | |
598e2d33 | 143 | cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $< |
22433fc5 MY |
144 | |
145 | $(obj)/%.s: $(src)/%.c FORCE | |
146 | $(call if_changed_dep,cc_s_c) | |
147 | ||
148 | quiet_cmd_cc_i_c = CPP $(quiet_modtag) $@ | |
149 | cmd_cc_i_c = $(CPP) $(c_flags) -o $@ $< | |
150 | ||
151 | $(obj)/%.i: $(src)/%.c FORCE | |
152 | $(call if_changed_dep,cc_i_c) | |
153 | ||
154 | cmd_gensymtypes = \ | |
155 | $(CPP) -D__GENKSYMS__ $(c_flags) $< | \ | |
156 | $(GENKSYMS) $(if $(1), -T $(2)) \ | |
22433fc5 MY |
157 | $(if $(KBUILD_PRESERVE),-p) \ |
158 | -r $(firstword $(wildcard $(2:.symtypes=.symref) /dev/null)) | |
159 | ||
160 | quiet_cmd_cc_symtypes_c = SYM $(quiet_modtag) $@ | |
161 | cmd_cc_symtypes_c = \ | |
162 | set -e; \ | |
163 | $(call cmd_gensymtypes,true,$@) >/dev/null; \ | |
164 | test -s $@ || rm -f $@ | |
165 | ||
166 | $(obj)/%.symtypes : $(src)/%.c FORCE | |
167 | $(call cmd,cc_symtypes_c) | |
168 | ||
169 | # C (.c) files | |
170 | # The C file is compiled and updated dependency information is generated. | |
171 | # (See cmd_cc_o_c + relevant part of rule_cc_o_c) | |
172 | ||
173 | quiet_cmd_cc_o_c = CC $(quiet_modtag) $@ | |
174 | ||
175 | ifndef CONFIG_MODVERSIONS | |
176 | cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< | |
177 | ||
178 | else | |
179 | # When module versioning is enabled the following steps are executed: | |
180 | # o compile a .tmp_<file>.o from <file>.c | |
181 | # o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does | |
182 | # not export symbols, we just rename .tmp_<file>.o to <file>.o and | |
183 | # are done. | |
184 | # o otherwise, we calculate symbol versions using the good old | |
185 | # genksyms on the preprocessed source and postprocess them in a way | |
186 | # that they are usable as a linker script | |
187 | # o generate <file>.o from .tmp_<file>.o using the linker to | |
188 | # replace the unresolved symbols __crc_exported_symbol with | |
189 | # the actual value of the checksum generated by genksyms | |
190 | ||
191 | cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $< | |
192 | cmd_modversions = \ | |
193 | if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \ | |
194 | $(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ | |
195 | > $(@D)/.tmp_$(@F:.o=.ver); \ | |
196 | \ | |
587e4a42 | 197 | $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ |
22433fc5 MY |
198 | -T $(@D)/.tmp_$(@F:.o=.ver); \ |
199 | rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \ | |
200 | else \ | |
201 | mv -f $(@D)/.tmp_$(@F) $@; \ | |
202 | fi; | |
203 | endif | |
204 | ||
205 | ifdef CONFIG_FTRACE_MCOUNT_RECORD | |
5972ff07 TR |
206 | # gcc 5 supports generating the mcount tables directly |
207 | ifneq ($(call cc-option,-mrecord-mcount,y),y) | |
208 | KBUILD_CFLAGS += -mrecord-mcount | |
209 | else | |
210 | # else do it all manually | |
22433fc5 MY |
211 | ifdef BUILD_C_RECORDMCOUNT |
212 | ifeq ("$(origin RECORDMCOUNT_WARN)", "command line") | |
213 | RECORDMCOUNT_FLAGS = -w | |
214 | endif | |
215 | # Due to recursion, we must skip empty.o. | |
216 | # The empty.o file is created in the make process in order to determine | |
217 | # the target endianness and word size. It is made before all other C | |
218 | # files, including recordmcount. | |
219 | sub_cmd_record_mcount = \ | |
220 | if [ $(@) != "scripts/mod/empty.o" ]; then \ | |
221 | $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \ | |
222 | fi; | |
223 | recordmcount_source := $(srctree)/scripts/recordmcount.c \ | |
224 | $(srctree)/scripts/recordmcount.h | |
225 | else | |
226 | sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \ | |
227 | "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \ | |
228 | "$(if $(CONFIG_64BIT),64,32)" \ | |
587e4a42 TR |
229 | "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CPPFLAGS) $(KBUILD_CFLAGS)" \ |
230 | "$(LD) $(KBUILD_LDFLAGS)" "$(NM)" "$(RM)" "$(MV)" \ | |
22433fc5 MY |
231 | "$(if $(part-of-module),1,0)" "$(@)"; |
232 | recordmcount_source := $(srctree)/scripts/recordmcount.pl | |
233 | endif | |
98bd0e0d MY |
234 | cmd_record_mcount = \ |
235 | if [ "$(findstring $(CC_FLAGS_FTRACE),$(_c_flags))" = \ | |
236 | "$(CC_FLAGS_FTRACE)" ]; then \ | |
22433fc5 MY |
237 | $(sub_cmd_record_mcount) \ |
238 | fi; | |
5972ff07 | 239 | endif # -record-mcount |
22433fc5 MY |
240 | endif |
241 | ||
242 | define rule_cc_o_c | |
243 | $(call echo-cmd,checksrc) $(cmd_checksrc) \ | |
244 | $(call echo-cmd,cc_o_c) $(cmd_cc_o_c); \ | |
245 | $(cmd_modversions) \ | |
246 | $(call echo-cmd,record_mcount) \ | |
247 | $(cmd_record_mcount) \ | |
248 | scripts/basic/fixdep $(depfile) $@ '$(call make-cmd,cc_o_c)' > \ | |
249 | $(dot-target).tmp; \ | |
250 | rm -f $(depfile); \ | |
251 | mv -f $(dot-target).tmp $(dot-target).cmd | |
252 | endef | |
253 | ||
254 | # Built-in and composite module parts | |
255 | $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE | |
256 | $(call cmd,force_checksrc) | |
257 | $(call if_changed_rule,cc_o_c) | |
258 | ||
259 | # Single-part modules are special since we need to mark them in $(MODVERDIR) | |
260 | ||
261 | $(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE | |
262 | $(call cmd,force_checksrc) | |
263 | $(call if_changed_rule,cc_o_c) | |
264 | @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod) | |
265 | ||
266 | quiet_cmd_cc_lst_c = MKLST $@ | |
267 | cmd_cc_lst_c = $(CC) $(c_flags) -g -c -o $*.o $< && \ | |
268 | $(CONFIG_SHELL) $(srctree)/scripts/makelst $*.o \ | |
269 | System.map $(OBJDUMP) > $@ | |
270 | ||
271 | $(obj)/%.lst: $(src)/%.c FORCE | |
272 | $(call if_changed_dep,cc_lst_c) | |
273 | ||
274 | # Compile assembler sources (.S) | |
275 | # --------------------------------------------------------------------------- | |
276 | ||
277 | modkern_aflags := $(KBUILD_AFLAGS_KERNEL) $(AFLAGS_KERNEL) | |
278 | ||
279 | $(real-objs-m) : modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE) | |
280 | $(real-objs-m:.o=.s): modkern_aflags := $(KBUILD_AFLAGS_MODULE) $(AFLAGS_MODULE) | |
281 | ||
282 | quiet_cmd_as_s_S = CPP $(quiet_modtag) $@ | |
45f0ad95 | 283 | cmd_as_s_S = $(CPP) $(a_flags) -o $@ $< |
22433fc5 MY |
284 | |
285 | $(obj)/%.s: $(src)/%.S FORCE | |
286 | $(call if_changed_dep,as_s_S) | |
287 | ||
288 | quiet_cmd_as_o_S = AS $(quiet_modtag) $@ | |
289 | cmd_as_o_S = $(CC) $(a_flags) -c -o $@ $< | |
290 | ||
291 | $(obj)/%.o: $(src)/%.S FORCE | |
292 | $(call if_changed_dep,as_o_S) | |
293 | ||
294 | targets += $(real-objs-y) $(real-objs-m) $(lib-y) | |
295 | targets += $(extra-y) $(MAKECMDGOALS) $(always) | |
296 | ||
297 | # Linker scripts preprocessor (.lds.S -> .lds) | |
298 | # --------------------------------------------------------------------------- | |
299 | quiet_cmd_cpp_lds_S = LDS $@ | |
300 | cmd_cpp_lds_S = $(CPP) $(cpp_flags) -P -C -U$(ARCH) \ | |
301 | -D__ASSEMBLY__ -DLINKER_SCRIPT -o $@ $< | |
302 | ||
303 | $(obj)/%.lds: $(src)/%.lds.S FORCE | |
304 | $(call if_changed_dep,cpp_lds_S) | |
305 | ||
306 | # ASN.1 grammar | |
307 | # --------------------------------------------------------------------------- | |
308 | quiet_cmd_asn1_compiler = ASN.1 $@ | |
2b12196d | 309 | cmd_asn1_compiler = $(objtree)/tools/asn1_compiler $< \ |
22433fc5 MY |
310 | $(subst .h,.c,$@) $(subst .c,.h,$@) |
311 | ||
2b12196d | 312 | $(obj)/%.asn1.c $(obj)/%.asn1.h: $(src)/%.asn1 $(objtree)/tools/asn1_compiler |
22433fc5 MY |
313 | $(call cmd,asn1_compiler) |
314 | ||
315 | # Build the compiled-in targets | |
316 | # --------------------------------------------------------------------------- | |
317 | ||
318 | # To build objects in subdirs, we need to descend into the directories | |
319 | $(sort $(subdir-obj-y)): $(subdir-ym) ; | |
320 | ||
321 | # | |
322 | # Rule to compile a set of .o files into one .o file | |
323 | # | |
324 | ifdef builtin-target | |
958f2e57 | 325 | quiet_cmd_link_o_target = AR $@ |
22433fc5 MY |
326 | # If the list of objects to link is empty, just create an empty built-in.o |
327 | cmd_link_o_target = $(if $(strip $(obj-y)),\ | |
958f2e57 MB |
328 | rm -f $@; $(AR) cDPrsT $@ $(filter $(obj-y), $^), \ |
329 | rm -f $@; $(AR) cDPrsT$(KBUILD_ARFLAGS) $@) | |
22433fc5 MY |
330 | |
331 | $(builtin-target): $(obj-y) FORCE | |
332 | $(call if_changed,link_o_target) | |
333 | ||
334 | targets += $(builtin-target) | |
335 | endif # builtin-target | |
336 | ||
337 | # | |
338 | # Rule to create modules.order file | |
339 | # | |
340 | # Create commands to either record .ko file or cat modules.order from | |
341 | # a subdirectory | |
342 | modorder-cmds = \ | |
343 | $(foreach m, $(modorder), \ | |
344 | $(if $(filter %/modules.order, $m), \ | |
345 | cat $m;, echo kernel/$m;)) | |
346 | ||
347 | $(modorder-target): $(subdir-ym) FORCE | |
348 | $(Q)(cat /dev/null; $(modorder-cmds)) > $@ | |
349 | ||
350 | # | |
351 | # Rule to compile a set of .o files into one .a file | |
352 | # | |
353 | ifdef lib-target | |
354 | quiet_cmd_link_l_target = AR $@ | |
958f2e57 | 355 | cmd_link_l_target = rm -f $@; $(AR) cDPrsT$(KBUILD_ARFLAGS) $@ $(lib-y) |
22433fc5 MY |
356 | |
357 | $(lib-target): $(lib-y) FORCE | |
358 | $(call if_changed,link_l_target) | |
359 | ||
360 | targets += $(lib-target) | |
361 | endif | |
362 | ||
958f2e57 | 363 | quiet_cmd_link_multi-y = AR $@ |
473fc279 | 364 | cmd_link_multi-y = rm -f $@; $(AR) cDPrsT$(KBUILD_ARFLAGS) $@ $(filter %.o,$^) |
958f2e57 MB |
365 | |
366 | quiet_cmd_link_multi-m = AR [M] $@ | |
22433fc5 MY |
367 | cmd_link_multi-m = $(cmd_link_multi-y) |
368 | ||
cb6e7b0d | 369 | $(multi-used-y): FORCE |
22433fc5 | 370 | $(call if_changed,link_multi-y) |
cb6e7b0d | 371 | $(call multi_depend, $(multi-used-y), .o, -objs -y) |
22433fc5 | 372 | |
cb6e7b0d | 373 | $(multi-used-m): FORCE |
22433fc5 | 374 | $(call if_changed,link_multi-m) |
473fc279 | 375 | @{ echo $(@:.o=.ko); echo $(filter %.o,$^); } > $(MODVERDIR)/$(@F:.o=.mod) |
cb6e7b0d | 376 | $(call multi_depend, $(multi-used-m), .o, -objs -y) |
22433fc5 MY |
377 | |
378 | targets += $(multi-used-y) $(multi-used-m) | |
379 | ||
380 | ||
e91610da ER |
381 | # Add intermediate targets: |
382 | # When building objects with specific suffix patterns, add intermediate | |
383 | # targets that the final targets are derived from. | |
384 | intermediate_targets = $(foreach sfx, $(2), \ | |
385 | $(patsubst %$(strip $(1)),%$(sfx), \ | |
386 | $(filter %$(strip $(1)), $(targets)))) | |
387 | # %.lex.o <- %.lex.c <- %.l | |
388 | # %.tab.o <- %.tab.[ch] <- %.y | |
e85a787c | 389 | targets += $(call intermediate_targets, .lex.o, .lex.c) \ |
e91610da ER |
390 | $(call intermediate_targets, .tab.o, .tab.c .tab.h) |
391 | ||
22433fc5 MY |
392 | # Descending |
393 | # --------------------------------------------------------------------------- | |
394 | ||
395 | PHONY += $(subdir-ym) | |
396 | $(subdir-ym): | |
397 | $(Q)$(MAKE) $(build)=$@ | |
398 | ||
399 | # Add FORCE to the prequisites of a target to force it to be always rebuilt. | |
400 | # --------------------------------------------------------------------------- | |
401 | ||
402 | PHONY += FORCE | |
403 | ||
404 | FORCE: | |
405 | ||
406 | # Read all saved command lines and dependencies for the $(targets) we | |
407 | # may be building above, using $(if_changed{,_dep}). As an | |
408 | # optimization, we don't need to read them if the target does not | |
409 | # exist, we will rebuild anyway in that case. | |
410 | ||
b5a20463 | 411 | cmd_files := $(wildcard $(foreach f,$(sort $(targets)),$(dir $(f)).$(notdir $(f)).cmd)) |
22433fc5 MY |
412 | |
413 | ifneq ($(cmd_files),) | |
414 | include $(cmd_files) | |
415 | endif | |
416 | ||
b5a20463 MY |
417 | # Create directories for object files if they do not exist |
418 | obj-dirs := $(sort $(obj) $(patsubst %/,%, $(dir $(targets)))) | |
419 | $(shell mkdir -p $(obj-dirs)) | |
420 | ||
22433fc5 | 421 | .PHONY: $(PHONY) |