]>
Commit | Line | Data |
---|---|---|
aeb72b16 | 1 | # Copyright (C) 1991, 92, 93, 94, 95, 96 Free Software Foundation, Inc. |
28f540f4 RM |
2 | # This file is part of the GNU C Library. |
3 | ||
4 | # The GNU C Library is free software; you can redistribute it and/or | |
5 | # modify it under the terms of the GNU Library General Public License as | |
6 | # published by the Free Software Foundation; either version 2 of the | |
7 | # License, or (at your option) any later version. | |
8 | ||
9 | # The GNU C Library is distributed in the hope that it will be useful, | |
10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
12 | # Library General Public License for more details. | |
13 | ||
14 | # You should have received a copy of the GNU Library General Public | |
15 | # License along with the GNU C Library; see the file COPYING.LIB. If | |
16 | # not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
17 | # Cambridge, MA 02139, USA. | |
18 | ||
19 | # | |
20 | # Common rules for making the GNU C library. This file is included | |
21 | # by the top-level Makefile and by all subdirectory makefiles | |
22 | # (through Rules). | |
23 | # | |
24 | ifneq (,) | |
25 | This makefile requires GNU Make. | |
26 | endif | |
27 | ||
28 | ||
29 | ifdef subdir | |
30 | .. := ../ | |
31 | endif # subdir | |
32 | ||
33 | # If `sources' was defined by the parent makefile, undefine it so | |
34 | # we will later get it from wildcard search in this directory. | |
35 | ifneq "$(findstring env,$(origin sources))" "" | |
36 | sources := | |
37 | endif | |
38 | ||
28f540f4 RM |
39 | oPATH := $(PATH) |
40 | PATH := this definition should take precedence over $(oPATH) | |
41 | ifeq ($(PATH),$(oPATH)) | |
42 | You must not use the -e flag when building the GNU C library. | |
43 | else | |
44 | PATH := $(oPATH) | |
45 | endif | |
46 | \f | |
47 | ifndef +included-Makeconfig | |
48 | include $(..)Makeconfig | |
49 | endif | |
50 | ||
51 | # `configure' writes a definition of `config-sysdirs' in `config.make'. | |
52 | sysdirs = $(config-sysdirs) | |
53 | ||
54 | +sysdir_pfx = $(common-objpfx) | |
55 | ||
56 | export sysdirs := $(sysdirs) | |
57 | ||
58 | +sysdep_dirs := $(addprefix $(sysdep_dir)/,$(sysdirs)) | |
59 | ifdef objdir | |
60 | +sysdep_dirs := $(objdir) $(+sysdep_dirs) | |
61 | endif | |
62 | ||
63 | # Add -I switches to get the right sysdep directories. | |
64 | # `+includes' in Makeconfig references $(+sysdep-includes). | |
65 | +sysdep-includes := $(addprefix -I,$(+sysdep_dirs)) | |
dbdb6189 RM |
66 | |
67 | # The name of the symbol table archive member. The default is suitable for | |
68 | # BSD style archives. It can be overridden in sysdep Makefiles when SYSV | |
69 | # style archive are used. | |
01f3e03b | 70 | ifeq (no,$(elf)) |
dbdb6189 | 71 | ar-symtab-name = __.SYMDEF |
01f3e03b RM |
72 | else |
73 | ar-symtab-name = # The null name is used in ELF archives. | |
74 | endif | |
28f540f4 RM |
75 | \f |
76 | # Include any system-specific makefiles. | |
77 | ||
78 | # This is here so things in sysdep Makefiles can easily depend on foo.h as | |
79 | # appropriate and not worry about where foo.h comes from, which may be | |
80 | # system dependent and not known by that Makefile. | |
81 | vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) \ | |
82 | $(addprefix $(sysdep_dir)/,$(sysdirs)) \ | |
83 | $(..))) | |
84 | ||
28f540f4 RM |
85 | # Some sysdep makefiles use this to distinguish being included here from |
86 | # being included individually by a subdir makefile (hurd/Makefile needs this). | |
87 | in-Makerules := yes | |
88 | ||
89 | ifndef avoid-generated | |
555f3a39 | 90 | -include $(+sysdir_pfx)sysd-Makefile |
273d56ce RM |
91 | ifneq ($(sysd-Makefile-sysdirs),$(sysdirs)) |
92 | sysd-Makefile-force = FORCE | |
93 | FORCE: | |
94 | endif | |
95 | $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \ | |
96 | $(sysd-Makefile-force) | |
28f540f4 | 97 | -@rm -f $@T |
273d56ce RM |
98 | (echo 'sysd-Makefile-sysdirs := $(sysdirs)'; \ |
99 | for dir in $(sysdirs); do \ | |
28f540f4 RM |
100 | file=sysdeps/$$dir/Makefile; \ |
101 | if [ -f $(..)$$file ]; then \ | |
102 | echo include "\$$(..)$$file"; \ | |
103 | else true; fi; \ | |
104 | done; \ | |
105 | echo 'sysd-Makefile-done=t') > $@T | |
106 | mv -f $@T $@ | |
107 | endif | |
108 | ||
3bbceb12 RM |
109 | ifndef sysd-Makefile-done |
110 | # Don't do deps until this exists, because it might change the sources list. | |
111 | no_deps=t | |
112 | endif | |
113 | ||
114 | ||
28f540f4 RM |
115 | # Reorder before-compile so that mach things come first, and hurd things |
116 | # second, before all else. The mach and hurd subdirectories have many | |
117 | # generated header files which the much of rest of the library depends on, | |
118 | # so it is best to build them first (and mach before hurd, at that). | |
119 | before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\ | |
120 | $(before-compile)) \ | |
121 | $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\ | |
122 | $(before-compile)) | |
123 | ||
124 | # Remove existing files from `before-compile'. Things are added there when | |
125 | # they must exist for dependency generation to work right, but once they | |
126 | # exist there is no further need for every single file to depend on them, | |
127 | # and those gratuitous dependencies result in many gratuitous | |
128 | # recompilations. | |
129 | before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile)) | |
130 | ||
131 | # Don't let any before-compile file be an intermediate and get removed. | |
132 | ifdef before-compile | |
133 | $(before-compile): | |
134 | endif | |
135 | \f | |
136 | # Generate an ordered list of implicit rules which find the source files in | |
137 | # each sysdep directory. The old method was to use vpath to search all the | |
138 | # sysdep directories. However, that had the problem that a .S file in a | |
139 | # later directory would be chosen over a .c file in an earlier directory, | |
140 | # which does not preserve the desired sysdeps ordering behavior. | |
141 | ||
142 | # When making the list of .d files to include, we can't know which ones | |
143 | # have source in .s files, and thus do not in fact need a .d file. | |
144 | # So we must define rules to make .d files for .s files. | |
145 | define make-dummy-dep | |
146 | $(addprefix ln $(objpfx)dummy.d ,$(filter-out $(wildcard $@),$@)) | |
147 | endef | |
148 | $(objpfx)dummy.d: | |
149 | echo '# .s files cannot contain includes, so they need no deps.' > $@ | |
150 | ||
151 | # It matters that this set of rules, for compiling from sources in | |
152 | # the current directory (the $srcdir/$subdir) come before the | |
153 | # generated sysdep rules in included from sysd-rules below. When | |
154 | # compiling in the source tree, generated sources go into the current | |
155 | # directory, and those should be chosen before any sources in sysdeps. | |
156 | $(objpfx)%.o: %.S $(before-compile); $(compile-command.S) | |
51f75302 RM |
157 | $(objpfx)%.so: %.S $(before-compile); $(compile-command.S) |
158 | $(objpfx)%.po: %.S $(before-compile); $(compile-command.S) | |
159 | $(objpfx)%.go: %.S $(before-compile); $(compile-command.S) | |
28f540f4 RM |
160 | $(objpfx)%.d: %.S $(before-compile); $(+make-deps) |
161 | $(objpfx)%.o: %.s $(before-compile); $(compile-command.s) | |
51f75302 RM |
162 | $(objpfx)%.so: %.s $(before-compile); $(compile-command.s) |
163 | $(objpfx)%.po: %.s $(before-compile); $(compile-command.s) | |
164 | $(objpfx)%.go: %.s $(before-compile); $(compile-command.s) | |
28f540f4 RM |
165 | $(objpfx)%.d: %.s $(objpfx)dummy.d; $(make-dummy-dep) |
166 | $(objpfx)%.o: %.c $(before-compile); $(compile-command.c) | |
51f75302 RM |
167 | $(objpfx)%.so: %.c $(before-compile); $(compile-command.c) |
168 | $(objpfx)%.po: %.c $(before-compile); $(compile-command.c) | |
169 | $(objpfx)%.go: %.c $(before-compile); $(compile-command.c) | |
28f540f4 RM |
170 | $(objpfx)%.d: %.c $(before-compile); $(+make-deps) |
171 | ||
172 | # Omit the objpfx rules when building in the source tree, because | |
173 | # objpfx is empty and so these rules just override the ones above. | |
174 | ifdef objpfx | |
175 | # Define first rules to find the source files in $(objpfx). | |
176 | # Generated source files will end up there. | |
177 | $(objpfx)%.o: $(objpfx)%.S $(before-compile); $(compile-command.S) | |
51f75302 RM |
178 | $(objpfx)%.so: $(objpfx)%.S $(before-compile); $(compile-command.S) |
179 | $(objpfx)%.po: $(objpfx)%.S $(before-compile); $(compile-command.S) | |
180 | $(objpfx)%.go: $(objpfx)%.S $(before-compile); $(compile-command.S) | |
28f540f4 RM |
181 | $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps) |
182 | $(objpfx)%.o: $(objpfx)%.s $(before-compile); $(compile-command.s) | |
51f75302 RM |
183 | $(objpfx)%.so: $(objpfx)%.s $(before-compile); $(compile-command.s) |
184 | $(objpfx)%.po: $(objpfx)%.s $(before-compile); $(compile-command.s) | |
185 | $(objpfx)%.go: $(objpfx)%.s $(before-compile); $(compile-command.s) | |
28f540f4 RM |
186 | $(objpfx)%.d: $(objpfx)%.s $(objpfx)dummy.d; $(make-dummy-dep) |
187 | $(objpfx)%.o: $(objpfx)%.c $(before-compile); $(compile-command.c) | |
51f75302 RM |
188 | $(objpfx)%.so: $(objpfx)%.c $(before-compile); $(compile-command.c) |
189 | $(objpfx)%.po: $(objpfx)%.c $(before-compile); $(compile-command.c) | |
190 | $(objpfx)%.go: $(objpfx)%.c $(before-compile); $(compile-command.c) | |
28f540f4 RM |
191 | $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps) |
192 | endif | |
193 | ||
194 | # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard | |
195 | # patterns matching sysdep directories whose assembly source files should | |
196 | # be suppressed. | |
197 | ifdef inhibit-sysdep-asm | |
198 | define open-check-inhibit-asm | |
199 | case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *) | |
200 | endef | |
51f75302 | 201 | close-check-inhibit-asm = ;; esac ; |
28f540f4 RM |
202 | endif |
203 | ||
204 | # Don't include sysd-rules until sysd-Makefile is already there and has been | |
205 | # included. It might define inhibit-sysdep-asm, which would affect the | |
206 | # contents of sysd-rules. | |
207 | ifdef sysd-Makefile-done | |
555f3a39 | 208 | -include $(+sysdir_pfx)sysd-rules |
273d56ce RM |
209 | ifneq ($(sysd-rules-sysdirs),$(sysdirs)) |
210 | # The value of $(sysdirs) the sysd-rules was computed for | |
211 | # differs from the one we are using now. So force a rebuild of sysd-rules. | |
212 | sysd-rules-force = FORCE | |
213 | FORCE: | |
214 | endif | |
28f540f4 RM |
215 | endif |
216 | $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \ | |
217 | $(wildcard $(foreach dir,$(sysdirs),\ | |
273d56ce RM |
218 | $(sysdep_dir)/$(dir)/Makefile))\ |
219 | $(sysd-rules-force) | |
28f540f4 | 220 | -@rm -f $@T |
273d56ce RM |
221 | (echo 'sysd-rules-sysdirs := $(sysdirs)'; \ |
222 | for sysdir in $(sysdirs); do \ | |
28f540f4 | 223 | dir="\$$(sysdep_dir)/$$sysdir"; \ |
51f75302 RM |
224 | for o in $(object-suffixes); do \ |
225 | $(open-check-inhibit-asm) \ | |
226 | echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \ | |
227 | \$$(compile-command.S)"; \ | |
228 | echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \ | |
229 | \$$(compile-command.s)"; \ | |
230 | $(close-check-inhibit-asm) \ | |
231 | echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \ | |
232 | \$$(compile-command.c)"; \ | |
233 | done; \ | |
28f540f4 | 234 | $(open-check-inhibit-asm) \ |
51f75302 RM |
235 | echo "\$$(objpfx)%.d: $$dir/%.s \$$(objpfx)dummy.d; \ |
236 | \$$(make-dummy-dep)"; \ | |
28f540f4 RM |
237 | echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \ |
238 | \$$(+make-deps)"; \ | |
51f75302 | 239 | $(close-check-inhibit-asm) \ |
28f540f4 RM |
240 | echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \ |
241 | \$$(+make-deps)"; \ | |
3bbceb12 RM |
242 | done; \ |
243 | echo 'sysd-rules-done = t') > $@T | |
28f540f4 RM |
244 | mv -f $@T $@ |
245 | ||
3bbceb12 RM |
246 | ifndef sysd-rules-done |
247 | # Don't do deps until this exists, because it provides rules to make the deps. | |
248 | no_deps=t | |
249 | endif | |
250 | ||
251 | ||
28f540f4 RM |
252 | ifndef compile-command.S |
253 | compile-command.S = $(compile.S) $(OUTPUT_OPTION) | |
254 | endif | |
255 | ifndef compile-command.s | |
256 | compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) | |
257 | endif | |
258 | ifndef compile-command.c | |
259 | compile-command.c = $(compile.c) $(OUTPUT_OPTION) | |
260 | endif | |
261 | ||
28f540f4 | 262 | # GCC can grok options after the file name, and it looks nicer that way. |
28f540f4 | 263 | compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS) |
aeb72b16 RM |
264 | compile.S = $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) |
265 | COMPILE.S = $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) | |
266 | COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS) | |
28f540f4 | 267 | |
28f540f4 RM |
268 | # We need this for the output to go in the right place. It will default to |
269 | # empty if make was configured to work with a cc that can't grok -c and -o | |
270 | # together. You can't compile the C library with such a compiler. | |
271 | OUTPUT_OPTION = -o $@ | |
28f540f4 RM |
272 | |
273 | S-CPPFLAGS = $(asm-CPPFLAGS) | |
274 | define +make-deps | |
275 | -@rm -f $@ | |
276 | $(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \ | |
1177c8ba | 277 | sed -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \ |
51f75302 | 278 | $(sed-remove-objpfx) > $(@:.d=.T) |
28f540f4 RM |
279 | mv -f $(@:.d=.T) $@ |
280 | endef | |
281 | ifneq (,$(objpfx)) | |
215dbbb1 RM |
282 | # Continuation lines here are dangerous because they introduce spaces! |
283 | define sed-remove-objpfx | |
284 | -e 's@ $(subst .,\.,$(subst @,\@,$(objpfx)))@ $$(objpfx)@g' \ | |
285 | -e 's@^$(subst .,\.,$(subst @,\@,$(objpfx)))@$$(objpfx)@g' | |
286 | endef | |
28f540f4 RM |
287 | endif |
288 | \f | |
289 | # Figure out the source filenames in this directory. | |
290 | ||
291 | override sources := $(addsuffix .c,$(filter-out $(elided-routines),\ | |
292 | $(routines) $(aux) \ | |
293 | $(sysdep_routines))) | |
294 | sysdep_routines := $(sysdep_routines) | |
295 | ||
e60062b7 RM |
296 | headers := $(headers) $(sysdep_headers) |
297 | ||
28f540f4 RM |
298 | # This is the list of all object files, gotten by |
299 | # replacing every ".c" in `sources' with a ".o". | |
300 | override objects := $(addprefix $(objpfx),$(sources:.c=.o)) | |
693e7b96 RM |
301 | |
302 | ||
303 | # This variable is used in ``include $(o-iterator)'' after defining | |
304 | # $(o-iterator-doit) to produce some desired rule using $o for the object | |
305 | # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy | |
306 | # is produced for each object suffix in use. | |
dc997231 | 307 | o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left)) |
693e7b96 RM |
308 | |
309 | # The makefile may define $(extra-libs) with `libfoo libbar' | |
310 | # to build libfoo.a et al from the modules listed in $(libfoo-routines). | |
311 | ifdef extra-libs | |
312 | # extra-lib.mk is included once for each extra lib to define rules | |
313 | # to build it, and to add its objects to the various variables. | |
314 | # During its evaluation, $(lib) is set to the name of the library. | |
315 | extra-libs-left := $(extra-libs) | |
316 | include $(patsubst %,$(..)extra-lib.mk,$(extra-libs)) | |
317 | endif | |
28f540f4 RM |
318 | \f |
319 | +depfiles := $(strip $(sources:.c=.d) \ | |
8c0dc19c | 320 | $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.so=.o))) \ |
28f540f4 RM |
321 | $(addsuffix .d,$(others) $(tests))) |
322 | +depfiles := $(addprefix $(objpfx),\ | |
323 | $(filter-out $(addsuffix .d,$(omit-deps)),\ | |
324 | $(+depfiles))) | |
325 | ||
28f540f4 | 326 | ifdef +depfiles |
28f540f4 | 327 | ifneq ($(no_deps),t) |
555f3a39 | 328 | -include $(+depfiles) |
deab9dea | 329 | endif |
28f540f4 RM |
330 | endif |
331 | \f\f | |
332 | # Maximize efficiency by minimizing the number of rules. | |
333 | .SUFFIXES: # Clear the suffix list. | |
334 | # Add the suffixes we use. | |
51f75302 | 335 | .SUFFIXES: .a $(object-suffixes) .S .s .c .h .d |
28f540f4 RM |
336 | |
337 | # Generic rule for making directories. | |
338 | %/: | |
339 | # mkdir isn't smart enough to strip a trailing /. | |
340 | mkdir $(@:%/=%) | |
341 | \f | |
342 | # Make sure that object files are not removed | |
343 | # when they are intermediates between sources and library members. | |
51f75302 | 344 | .PRECIOUS: $(addprefix $(objpfx)%,$(object-suffixes)) |
28f540f4 RM |
345 | |
346 | # Make sure that the parent library archive is never removed. | |
51f75302 | 347 | .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c)) |
28f540f4 RM |
348 | \f |
349 | # Use the verbose option of ar and tar when not running silently. | |
350 | ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s | |
351 | verbose := v | |
352 | else # -s | |
353 | verbose := | |
354 | endif # not -s | |
355 | ||
356 | ARFLAGS := r$(verbose) | |
357 | \f | |
358 | # This makes all the object files in the parent library archive. | |
359 | ||
360 | .PHONY: lib libobjs lib-noranlib | |
4788ab46 | 361 | lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c)) |
51f75302 RM |
362 | |
363 | # Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib. | |
dbdb6189 | 364 | lib%.a: lib%.a($(ar-symtab-name)) ; |
51f75302 | 365 | |
564210fe RM |
366 | # For object-suffix $o, the list of objects with that suffix. |
367 | # Makefiles can define `elide-routines.so = foo' to leave foo.so out. | |
368 | o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\ | |
369 | $(elide-routines$o)),\ | |
370 | $(objects))) | |
371 | ||
51f75302 RM |
372 | libobjs: $(foreach o,$(object-suffixes),\ |
373 | $(common-objpfx)$(patsubst %,$(libtype$o),c)(\ | |
564210fe | 374 | $(notdir $(o-objects)))) |
3bbceb12 RM |
375 | lib-noranlib: libobjs |
376 | others: $(addprefix $(objpfx),$(install-lib)) | |
28f540f4 | 377 | |
28f540f4 | 378 | ifdef objects |
51f75302 RM |
379 | |
380 | # Define a pattern rule that will match many targets libc.a(foo.%), for | |
381 | # each foo.o in $(objects) (% will just happen always to match `o'). This is | |
382 | # the only way to define a rule that updates many targets at once with one | |
564210fe RM |
383 | # sequence of commands. |
384 | define o-iterator-doit | |
385 | $(common-objpfx)$(patsubst %,$(libtype$o),c)(\ | |
386 | $(addsuffix .%,$(filter-out $(elide-routines$o),$(notdir $(objects:.o=))))): \ | |
51f75302 | 387 | $(objpfx)stamp.%-$(subdir) ; |
564210fe RM |
388 | endef |
389 | object-suffixes-left := $(object-suffixes) | |
390 | include $(o-iterator) | |
51f75302 RM |
391 | |
392 | # The pattern rule tells Make to remake $(objpfx)stamp.%-$(subdir) as | |
564210fe RM |
393 | # the way to update all the foo.% object files in $(objects). Now we |
394 | # define explicit rules to update each $(objpfx)stamp.SUFFIX-$(subdir) | |
395 | # timestamp file; these rules (one explicit rule is generated for each | |
396 | # object suffix) will update the parent archive with ar. Use a static | |
397 | # pattern rule so $* is set to the object type during the commands. | |
398 | define o-iterator-doit | |
399 | $(objpfx)stamp$o-$(subdir): $(objpfx)stamp%-$(subdir): $(o-objects); $$(do-ar) | |
400 | endef | |
401 | object-suffixes-left := $(object-suffixes) | |
402 | include $(o-iterator) | |
403 | define do-ar | |
404 | $(patsubst %,cd %;,$(objdir)) \ | |
405 | $(AR) cru$(verbose) ${O%-lib} \ | |
406 | $(patsubst $(objpfx)%,%,$^) | |
407 | rm -f $@ | |
408 | touch $@ | |
409 | endef | |
e215c478 | 410 | ifdef subdir |
51f75302 | 411 | O%-lib = $(filter ../,$(firstword $(objdir) ../))$(patsubst %,$(libtype$*),c) |
e215c478 RM |
412 | else |
413 | O%-lib = $(patsubst %,$(libtype$*),c) | |
414 | endif | |
28f540f4 | 415 | |
51f75302 | 416 | endif |
28f540f4 | 417 | |
dbdb6189 RM |
418 | # Rules to update the $(ar-symtab-name) member with ranlib, |
419 | # one for each object flavor. | |
420 | define o-iterator-doit | |
421 | $(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \ | |
422 | $(common-objpfx)$(patsubst %,$(libtype$o),c)(\ | |
4d6acc61 | 423 | $(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \ |
dbdb6189 RM |
424 | $$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c) |
425 | endef | |
4d6acc61 RM |
426 | ifndef subdir |
427 | subdirs-stamps := $(foreach d,$(subdirs),\ | |
428 | $(firstword $(objdir) $(subdir))/stamp%-$d) | |
429 | subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps)) | |
430 | $(subdirs-stamps): subdir_lib; | |
431 | endif | |
dbdb6189 RM |
432 | object-suffixes-left = $(object-suffixes) |
433 | include $(o-iterator) | |
434 | ||
28f540f4 RM |
435 | |
436 | # This makes all the object files. | |
437 | .PHONY: objects objs | |
564210fe | 438 | objects objs: $(foreach o,$(object-suffixes),$(o-objects)) \ |
51f75302 | 439 | $(addprefix $(objpfx),$(extra-objs)) |
f0bf9cb9 RM |
440 | |
441 | # Canned sequence for building an extra library archive. | |
442 | define build-extra-lib | |
443 | $(patsubst %,cd %;,$(objdir)) \ | |
444 | $(AR) cru$(verbose) $(@:$(objpfx)%=%) \ | |
445 | $(patsubst $(objpfx)%,%,$^) | |
446 | $(RANLIB) $@ | |
447 | endef | |
28f540f4 | 448 | \f |
0e3426bb RM |
449 | # Shared library building. |
450 | ||
451 | ifeq (yes,$(build-shared)) | |
452 | ||
453 | # Process the shlib-versions file, which tells us what shared library | |
454 | # version numbers to use when we install shared objects on this system. | |
455 | -include $(common-objpfx)soversions.mk | |
456 | $(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makerules \ | |
457 | $(common-objpfx)config.make | |
458 | sed 's/#.*$$//' $< | while read conf versions; do \ | |
459 | test -n "$$versions" || continue; \ | |
460 | case '$(config-machine)-$(config-vendor)-$(config-os)' in $$conf)\ | |
461 | for v in $$versions; do \ | |
462 | lib="$${v%%=*}"; if eval "test -z \"\$$vers_lib$$lib\""; then \ | |
463 | eval vers_lib$${lib}=yes; \ | |
464 | echo $$lib.so-version=.$${v##$$lib=}; fi; \ | |
465 | done ;; esac; done > $@T | |
466 | mv -f $@T $@ | |
467 | ||
468 | # Get $(version) defined with the release version number. | |
469 | -include $(common-objpfx)version.mk | |
470 | ||
471 | ||
472 | # Pattern rule to build a shared object from an archive of PIC objects. | |
473 | # This must come after the installation rules so Make doesn't try to | |
474 | # build shared libraries in place from the installed *_pic.a files. | |
475 | # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies | |
476 | # on other shared objects. | |
477 | lib%.so: lib%_pic.a; $(build-shlib) | |
478 | ||
479 | ifeq ($(have-no-whole-archive),yes) | |
480 | no-whole-archive = -Wl,--no-whole-archive | |
481 | else | |
482 | no-whole-archive = | |
483 | endif | |
484 | ||
485 | define build-shlib | |
486 | $(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \ | |
487 | -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \ | |
488 | $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \ | |
489 | -Wl,-rpath-link=$(common-objdir) \ | |
490 | -Wl,--whole-archive $^ $(no-whole-archive) \ | |
491 | $(LDLIBS-$(@F:lib%.so=%).so) | |
492 | endef | |
493 | ||
494 | # Don't try to use -lc when making libc.so itself. | |
495 | # Also omits crti.o and crtn.o, which we do not want | |
496 | # since we define our own `.init' section specially. | |
497 | LDFLAGS-c.so = -nostdlib -nostartfiles | |
498 | # Give libc.so an entry point and make it directly runnable itself. | |
463e148b | 499 | LDFLAGS-c.so += -e __libc_main |
0e3426bb | 500 | # Use our own special initializer and finalizer files for libc.so. |
6e86a7c2 | 501 | elfobjdir := $(firstword $(objdir) $(patsubst ../$(subdir),.,$(..)elf)) |
0e3426bb RM |
502 | $(common-objpfx)libc.so: $(elfobjdir)/soinit.so \ |
503 | $(common-objpfx)libc_pic.a \ | |
ba79d61b | 504 | $(elfobjdir)/sofini.so $(elfobjdir)/ld.so |
0e3426bb RM |
505 | $(build-shlib) |
506 | ||
507 | ifdef libc.so-version | |
508 | $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so | |
509 | rm -f $@ | |
510 | ln -s $(<F) $@ || ln $< $@ | |
511 | endif | |
512 | endif | |
513 | \f | |
28f540f4 RM |
514 | # Installation. |
515 | ||
516 | # $(install-lib) are installed from the object directory into $(libdir); | |
517 | # files in $(install-lib) matching `lib%.a' are ranlib'd after installation | |
518 | # unless they also appear in $(non-lib.a). $(install-data) are installed | |
519 | # as they are into $(datadir). $(headers) are installed as they are in | |
520 | # $(includedir). $(install-bin) and $(install-sbin) are installed from the | |
521 | # object directory into $(bindir) and $(sbindir), respectively. | |
522 | # $(install-others) are absolute path names of files to install; rules to | |
523 | # install them are defined elsewhere. | |
524 | ||
525 | # The simple library name to install libc.a under. | |
526 | # This could be defined by a sysdep Makefile. | |
527 | ifndef libc-name | |
528 | libc-name := c | |
529 | endif | |
530 | ||
531 | define do-install | |
532 | $(make-target-directory) | |
533 | $(INSTALL_DATA) $< $@ | |
534 | endef | |
535 | ||
a182affd RM |
536 | # Make the target directory if it doesn't exist, using the `mkinstalldirs' |
537 | # script that does `mkdir -p' even if `mkdir' doesn't support that flag. | |
28f540f4 | 538 | define make-target-directory |
dcfb26a7 | 539 | $(addprefix $(..)./mkinstalldirs ,\ |
a182affd | 540 | $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%))) |
28f540f4 RM |
541 | endef |
542 | ||
543 | # Any directory (parent or subdir) that has any object files to build | |
544 | # should install libc.a; this way "make install" in a subdir is guaranteed | |
545 | # to install everything it changes. | |
546 | ifdef objects | |
51f75302 RM |
547 | installed-libcs := $(foreach o,$(object-suffixes),\ |
548 | $(libdir)/$(patsubst %,$(libtype$o),\ | |
549 | $(libprefix)$(libc-name))) | |
75914335 | 550 | installed-libcs := $(filter-out %_pic.a,$(installed-libcs)) |
51f75302 | 551 | install: $(installed-libcs) |
9f2233e8 | 552 | $(installed-libcs): $(libdir)/lib$(libprefix)%: lib |
28f540f4 | 553 | $(make-target-directory) |
c316b486 | 554 | $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@ |
9f2233e8 RM |
555 | # Running ranlib after installing makes the __.SYMDEF time stamp up to |
556 | # date, which avoids messages from some linkers. | |
28f540f4 RM |
557 | $(RANLIB) $@ |
558 | endif | |
559 | ||
273d56ce RM |
560 | define do-install-program |
561 | $(make-target-directory) | |
562 | $(INSTALL_PROGRAM) $< $@.new | |
563 | mv -f $@.new $@ | |
564 | endef | |
565 | ||
5bf62f2d | 566 | install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so)) |
0700dfa1 | 567 | install-lib := $(filter-out %.so %_pic.a,$(install-lib)) |
51f75302 | 568 | ifeq (yes,$(build-shared)) |
5bf62f2d | 569 | |
0e3426bb | 570 | install-lib-nosubdir: $(install-lib.so:%=$(libdir)/%) |
0e3426bb RM |
571 | |
572 | # Find which .so's have versions. | |
05d4c982 RM |
573 | versioned := $(strip $(foreach so,$(install-lib.so),\ |
574 | $(patsubst %,$(so),$($(so)-version)))) | |
0e3426bb RM |
575 | |
576 | # Install all the unversioned shared libraries. | |
577 | $(addprefix $(libdir)/,$(filter-out $(versioned),$(install-lib.so))): \ | |
f0523145 | 578 | $(libdir)/%.so: $(objpfx)%.so; $(do-install-program) |
0e3426bb RM |
579 | |
580 | make-link = cd $(@D); rm -f $(@F); $(LN_S) $(<F) $(@F) | |
581 | ||
582 | ifdef libc.so-version | |
583 | # For a library specified to be version N, install three files: | |
584 | # libc.so -> libc.so.N (e.g. libc.so.6) | |
585 | # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so) | |
586 | ||
0e3426bb RM |
587 | $(slibdir)/libc.so$(libc.so-version): $(slibdir)/libc-$(version).so |
588 | $(make-link) | |
589 | $(slibdir)/libc-$(version).so: $(common-objpfx)libc.so; $(do-install-program) | |
aa1075ea | 590 | install: $(slibdir)/libc.so$(libc.so-version) |
7c713e28 | 591 | |
aa1075ea | 592 | ifndef subdir |
7c713e28 RM |
593 | # What we install as libc.so for programs to link against is in fact an |
594 | # archive. It contains the various $(static-only-routines) objects, and | |
595 | # the special object libc-syms.so that contains just the dynamic symbol | |
596 | # table of the shared libc object. | |
597 | install: $(libdir)/libc.so | |
0f90ef96 | 598 | $(libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \ |
d8c7ef98 | 599 | $(elfobjdir)/$(rtld-installed-name) \ |
0f90ef96 RM |
600 | $(common-objpfx)libc.a |
601 | (echo '/* Use the shared library, but some functions are only in';\ | |
d8c7ef98 RM |
602 | echo ' the static library, so try that secondarily.'; \ |
603 | echo ' The dynamic linker defines some functions used by $(<F),';\ | |
604 | echo ' but ld uses definitions from libc.a before the examining';\ | |
605 | echo ' dependencies of $(<F) to find $(rtld-installed-name). */';\ | |
0f90ef96 RM |
606 | echo 'GROUP ( $(^F) )') > $@.new |
607 | mv -f $@.new $@ | |
608 | ||
aa1075ea | 609 | endif |
7c713e28 | 610 | |
0e3426bb | 611 | else |
7c713e28 | 612 | install: $(slibdir)/libc.so |
0e3426bb RM |
613 | $(slibdir)/libc.so: $(common-objpfx)libc.so; $(do-install-program) |
614 | endif | |
615 | ||
616 | ||
617 | ifneq (,$(versioned)) | |
618 | # Produce three sets of rules as above for all the smaller versioned libraries. | |
619 | ||
620 | define o-iterator-doit | |
f0523145 | 621 | $(libdir)/$o: $(libdir)/$o$($o-version); $$(make-link) |
0e3426bb RM |
622 | endef |
623 | object-suffixes-left := $(versioned) | |
dc997231 | 624 | include $(o-iterator) |
0e3426bb | 625 | |
20c81189 RM |
626 | # Make symlinks in the build directory, because the versioned names might |
627 | # be referenced by a DT_NEEDED in another library. | |
628 | define o-iterator-doit | |
629 | $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link) | |
630 | endef | |
631 | object-suffixes-left := $(versioned) | |
dc997231 | 632 | include $(o-iterator) |
20c81189 RM |
633 | |
634 | ||
0e3426bb | 635 | define o-iterator-doit |
f0523145 | 636 | $(libdir)/$o$($o-version): $(libdir)/$(o:.so=)-$(version).so; $$(make-link) |
0e3426bb RM |
637 | endef |
638 | object-suffixes-left := $(versioned) | |
dc997231 | 639 | include $(o-iterator) |
0e3426bb RM |
640 | |
641 | define o-iterator-doit | |
f0523145 | 642 | $(libdir)/$(o:.so=)-$(version).so: $(objpfx)$o; $$(do-install-program) |
0e3426bb RM |
643 | endef |
644 | object-suffixes-left := $(versioned) | |
dc997231 | 645 | include $(o-iterator) |
0e3426bb | 646 | endif |
102800e0 RM |
647 | |
648 | define do-install-so | |
649 | $(do-install-program) | |
650 | $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\ | |
651 | $(filter-out %.so,$@)) | |
652 | endef | |
094bacdb | 653 | |
102800e0 RM |
654 | so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version))) |
655 | $(foreach v,$(so-versions),\ | |
273d56ce | 656 | $(libdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so |
102800e0 RM |
657 | $(do-install-so) |
658 | $(foreach v,$(so-versions),\ | |
273d56ce | 659 | $(libdir)/$(libprefix)%$v): $(common-objpfx)%.so |
102800e0 | 660 | $(do-install-so) |
51f75302 RM |
661 | endif |
662 | ||
28f540f4 RM |
663 | ifdef install-bin |
664 | $(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)% | |
273d56ce | 665 | $(do-install-program) |
28f540f4 RM |
666 | endif |
667 | ifdef install-sbin | |
668 | $(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)% | |
273d56ce | 669 | $(do-install-program) |
28f540f4 RM |
670 | endif |
671 | ifdef install-lib | |
672 | install-lib.a := $(filter lib%.a,$(install-lib)) | |
673 | install-lib-non.a := $(filter-out lib%.a,$(install-lib)) | |
674 | ifdef install-lib-non.a | |
675 | $(addprefix $(libdir)/$(libprefix),$(install-lib-non.a)): \ | |
d929664a | 676 | $(libdir)/$(libprefix)%: $(objpfx)% |
28f540f4 RM |
677 | $(do-install) |
678 | endif | |
679 | ifdef install-lib.a | |
680 | $(install-lib.a:lib%.a=$(libdir)/lib$(libprefix)%.a): \ | |
64166d98 | 681 | $(libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a |
28f540f4 RM |
682 | $(do-install) |
683 | $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F))) | |
684 | endif | |
685 | endif | |
686 | ifdef install-data | |
687 | $(addprefix $(datadir)/,$(install-data)): $(datadir)/%: %;$(do-install) | |
688 | endif | |
689 | headers := $(strip $(headers)) | |
690 | ifdef headers | |
691 | $(addprefix $(includedir)/,$(headers)): \ | |
692 | $(includedir)/%: %;$(do-install) | |
693 | endif # headers | |
694 | ||
695 | .PHONY: install-bin-nosubdir install-sbin-nosubdir install-lib-nosubdir \ | |
696 | install-data-nosubdir install-headers-nosubdir | |
697 | install-bin-nosubdir: $(addprefix $(bindir)/,$(install-bin)) | |
698 | install-sbin-nosubdir: $(addprefix $(sbindir)/,$(install-sbin)) | |
699 | install-lib-nosubdir: $(addprefix $(libdir)/,\ | |
700 | $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \ | |
701 | $(addprefix $(libprefix),$(install-lib-non.a))) | |
702 | install-data-nosubdir: $(addprefix $(datadir)/,$(install-data)) | |
703 | install-headers-nosubdir: $(addprefix $(includedir)/,$(headers)) | |
704 | install-others-nosubdir: $(install-others) | |
705 | ||
706 | # We need all the `-nosubdir' targets so that `install' in the parent | |
707 | # doesn't depend on several things which each iterate over the subdirs. | |
708 | # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a | |
709 | # subroutine. Then in the parent `install-FOO' also causes subdir makes. | |
710 | install-%:: install-%-nosubdir ; | |
711 | ||
712 | .PHONY: install install-no-libc.a-nosubdir | |
713 | install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\ | |
714 | install-bin-nosubdir install-lib-nosubdir \ | |
715 | install-others-nosubdir install-sbin-nosubdir | |
716 | install: install-no-libc.a-nosubdir | |
717 | \f | |
718 | # Command to compile $< in $(objdir) using the native libraries. | |
719 | define native-compile | |
720 | cwd=`pwd`; cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) \ | |
721 | $(addprefix $$cwd/,$^) -o $(@F) | |
722 | endef | |
723 | ||
724 | # Command to compile $< in $(common-objdir) using the native libraries. | |
725 | define common-objdir-compile | |
726 | cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) $(<:$(common-objpfx)%=%) -o $(@F) | |
727 | endef | |
728 | ||
729 | # We always want to use configuration definitions. | |
299a95b9 | 730 | ifdef objdir |
ffcf9634 RM |
731 | # This is always used in $(common-objdir), so we use no directory name. |
732 | BUILD_CFLAGS = -include config.h | |
299a95b9 RM |
733 | else |
734 | BUILD_CFLAGS = -include $(..)config.h | |
735 | endif | |
28f540f4 RM |
736 | |
737 | # Support the GNU standard name for this target. | |
738 | .PHONY: check | |
739 | check: tests | |
740 | \f | |
741 | .PHONY: TAGS | |
742 | TAGS: distinfo $(..)MakeTAGS | |
dbdb6189 | 743 | $(MAKE) $(addprefix -f ,$^) $@ |
28f540f4 | 744 | |
ce563359 RM |
745 | $(..)po/%.pot: distinfo $(..)MakeTAGS FORCE |
746 | $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@ | |
747 | FORCE: | |
a182affd RM |
748 | |
749 | ||
28f540f4 RM |
750 | .PHONY: echo-headers |
751 | echo-headers: | |
752 | @echo $(headers) | |
753 | ||
754 | \f | |
755 | # Common cleaning targets. | |
756 | ||
757 | .PHONY: common-mostlyclean common-clean mostlyclean clean | |
758 | clean: common-clean | |
759 | mostlyclean: common-mostlyclean | |
760 | ||
761 | # Remove the object files. | |
762 | common-mostlyclean: | |
763 | -rm -f $(addprefix $(objpfx),$(tests) $(others) \ | |
764 | $(addsuffix .o,$(tests) $(others)) \ | |
765 | $(addsuffix .out,$(tests))) | |
4788ab46 RM |
766 | -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib)) |
767 | -rm -f core $(objpfx)stub-$(subdir) | |
51f75302 RM |
768 | $(rmobjs) |
769 | define rmobjs | |
770 | $(foreach o,$(object-suffixes), | |
564210fe | 771 | -rm -f $(addprefix $(objpfx),stamp$o-$(subdir)) $(o-objects)) |
51f75302 | 772 | endef |
28f540f4 RM |
773 | |
774 | # Also remove the dependencies and generated source files. | |
775 | common-clean: common-mostlyclean | |
deab9dea | 776 | -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles) |
28f540f4 RM |
777 | \f |
778 | # Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION' | |
779 | # for each function which is a stub. We grovel over all the .d files | |
780 | # looking for references to source files in sysdeps/stub. Then we grovel | |
781 | # over each referenced source file to see what stub function it defines. | |
782 | ||
783 | .PHONY: stubs # The parent Makefile calls this target. | |
784 | stubs: $(common-objpfx)stub-$(subdir) | |
785 | s = $(sysdep_dir)/stub | |
786 | $(common-objpfx)stub-$(subdir): $(+depfiles) | |
787 | # Use /dev/null since `...` might expand to empty. | |
c4cc693d RM |
788 | (s=`cd $s; /bin/pwd`; \ |
789 | $(patsubst %,cd %;,$(objdir)) \ | |
790 | sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \ | |
791 | `sed -n 's@^.*$s/\([a-z0-9_-]*\.c\).*$$@'"$$s"/'\1@p' \ | |
792 | $(patsubst $(objpfx)%,%,$^) /dev/null` \ | |
793 | /dev/null) > $@T | |
28f540f4 RM |
794 | mv -f $@T $@ |
795 | \f | |
796 | # Make the distribution tar file. | |
797 | ||
798 | .PHONY: dist | |
094bacdb | 799 | dist: distinfo $(..)Make-dist |
28f540f4 RM |
800 | $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args) |
801 | ||
10ceac89 RM |
802 | # Avoid depending on source files found in sysdeps dirs, |
803 | # because the references affect implicit rule selection. | |
804 | dist: $(filter-out %.c %.S %.s,$(distribute)) | |
28f540f4 RM |
805 | |
806 | # We used to simply export all these variables, but that frequently made the | |
807 | # environment get too large. Instead, we write all the information into | |
808 | # a generated makefile fragment `distinfo', and then include it with -f in | |
809 | # the sub-make that makes the distribution (above). | |
810 | distinfo: Makefile $(..)Makerules | |
811 | $(distinfo-vars) | |
812 | mv -f $@.new $@ | |
813 | ||
814 | define distinfo-vars | |
815 | rm -f $@.new | |
df7c0d23 | 816 | $(foreach var,subdir subdir-dirs sources elided-routines sysdep_routines \ |
dfe1754a | 817 | headers sysdep_headers distribute dont_distribute generated \ |
4d6acc61 RM |
818 | others tests extra-libs $(extra-libs:%=%-routines) \ |
819 | $(addprefix install-,lib data bin sbin others), | |
820 | echo >> $@.new '$(subdir)-$(var) := $($(var))' | |
821 | echo >> $@.new '$(var) = $$($(subdir)-$(var))') | |
28f540f4 RM |
822 | endef |
823 | \f | |
824 | ifneq (,$(strip $(gpl2lgpl))) | |
825 | ifneq (,$(wildcard $(..)gpl2lgpl.sed)) | |
826 | # Snarf from the master source and frob the copying notice. | |
827 | $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/% | |
828 | sed -f $^ > $@-tmp | |
829 | # So I don't edit them by mistake. | |
830 | chmod a-w $@-tmp | |
831 | mv -f $@-tmp $@ | |
a2fe9c76 | 832 | test ! -d CVS || cvs commit -m'Updated from $^' $@ |
28f540f4 RM |
833 | endif |
834 | endif |