1 # Copyright (C) 1991,92,93,94,95,96,97,98,99,2000
2 # Free Software Foundation, Inc.
3 # This file is part of the GNU C Library.
5 # The GNU C Library is free software; you can redistribute it and/or
6 # modify it under the terms of the GNU Library General Public License as
7 # published by the Free Software Foundation; either version 2 of the
8 # License, or (at your option) any later version.
10 # The GNU C Library is distributed in the hope that it will be useful,
11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 # Library General Public License for more details.
15 # You should have received a copy of the GNU Library General Public
16 # License along with the GNU C Library; see the file COPYING.LIB. If not,
17 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 # Boston, MA 02111-1307, USA.
21 # Common rules for making the GNU C library. This file is included
22 # by the top-level Makefile and by all subdirectory makefiles
26 This makefile requires GNU Make.
29 REQUIRED_MAKE_VERSION = 3.74
30 REAL_MAKE_VERSION = $(firstword $(MAKE_VERSION))
32 ifneq ($(REQUIRED_MAKE_VERSION), \
33 $(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION))))
34 Wrong GNU Make version. See above for the version needed.
42 # If `sources' was defined by the parent makefile, undefine it so
43 # we will later get it from wildcard search in this directory.
44 ifneq "$(findstring env,$(origin sources))" ""
49 PATH := this definition should take precedence over $(oPATH)
50 ifeq ($(PATH),$(oPATH))
51 You must not use the -e flag when building the GNU C library.
56 ifndef +included-Makeconfig
57 include $(..)Makeconfig
60 # `configure' writes a definition of `config-sysdirs' in `config.make'.
61 sysdirs = $(strip $(full_config_sysdirs))
63 +sysdir_pfx = $(common-objpfx)
65 export sysdirs := $(sysdirs)
67 +sysdep_dirs := $(full_config_sysdirs)
69 +sysdep_dirs := $(objdir) $(+sysdep_dirs)
72 # Add -I switches to get the right sysdep directories.
73 # `+includes' in Makeconfig references $(+sysdep-includes).
74 +sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
76 # This variable is used in ``include $(o-iterator)'' after defining
77 # $(o-iterator-doit) to produce some desired rule using $o for the object
78 # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
79 # is produced for each object suffix in use.
80 o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
82 # Include any system-specific makefiles.
84 # This is here so things in sysdep Makefiles can easily depend on foo.h as
85 # appropriate and not worry about where foo.h comes from, which may be
86 # system dependent and not known by that Makefile.
87 vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
88 $(+sysdep_dirs) $(..)))
90 # The same is true for RPC source files.
91 vpath %.x $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
92 $(+sysdep_dirs) $(..)))
94 # Some sysdep makefiles use this to distinguish being included here from
95 # being included individually by a subdir makefile (hurd/Makefile needs this).
98 -include $(+sysdir_pfx)sysd-Makefile
99 ifndef avoid-generated
100 ifneq ($(sysd-Makefile-sysdirs),$(config-sysdirs))
101 sysd-Makefile-force = FORCE
104 $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
105 $(sysd-Makefile-force)
107 (echo 'sysd-Makefile-sysdirs := $(config-sysdirs)'; \
108 for file in $(config-sysdirs:=/Makefile); do \
109 if [ -f $(..)$$file ]; then \
110 echo include "\$$(..)$$file"; \
113 echo 'sysd-Makefile-done=t') > $@T
117 ifndef sysd-Makefile-done
118 # Don't do deps until this exists, because it might change the sources list.
123 # Reorder before-compile so that mach things come first, and hurd things
124 # second, before all else. The mach and hurd subdirectories have many
125 # generated header files which the much of rest of the library depends on,
126 # so it is best to build them first (and mach before hurd, at that).
127 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
129 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
132 # Even before that, we need abi-versions.h which is generated right here.
133 ifeq ($(versioning),yes)
134 ifndef avoid-generated
135 before-compile := $(common-objpfx)abi-versions.h $(before-compile)
136 $(common-objpfx)abi-versions.h: $(..)scripts/abi-versions.awk \
137 $(common-objpfx)Versions.all
138 LC_ALL=C $(AWK) -f $^ > $@T
140 endif # avoid-generated
141 endif # $(versioning) = yes
144 # Remove existing files from `before-compile'. Things are added there when
145 # they must exist for dependency generation to work right, but once they
146 # exist there is no further need for every single file to depend on them,
147 # and those gratuitous dependencies result in many gratuitous
149 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
151 # Don't let any before-compile file be an intermediate and get removed.
156 # Generate an ordered list of implicit rules which find the source files in
157 # each sysdep directory. The old method was to use vpath to search all the
158 # sysdep directories. However, that had the problem that a .S file in a
159 # later directory would be chosen over a .c file in an earlier directory,
160 # which does not preserve the desired sysdeps ordering behavior.
162 # When making the list of .d files to include, we can't know which ones
163 # have source in .s files, and thus do not in fact need a .d file.
164 # So we must define rules to make .d files for .s files.
165 define make-dummy-dep
166 $(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
168 $(common-objpfx)dummy.d:
169 echo '# .s files cannot contain includes, so they need no deps.' > $@
171 # It matters that this set of rules, for compiling from sources in
172 # the current directory (the $srcdir/$subdir) come before the
173 # generated sysdep rules in included from sysd-rules below. When
174 # compiling in the source tree, generated sources go into the current
175 # directory, and those should be chosen before any sources in sysdeps.
176 define o-iterator-doit
177 $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
179 object-suffixes-left := $(all-object-suffixes)
180 include $(o-iterator)
181 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
183 define o-iterator-doit
184 $(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
186 object-suffixes-left := $(all-object-suffixes)
187 include $(o-iterator)
188 $(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
190 define o-iterator-doit
191 $(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
193 object-suffixes-left := $(all-object-suffixes)
194 include $(o-iterator)
195 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
197 # Omit the objpfx rules when building in the source tree, because
198 # objpfx is empty and so these rules just override the ones above.
200 # Define first rules to find the source files in $(objpfx).
201 # Generated source files will end up there.
202 define o-iterator-doit
203 $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
205 object-suffixes-left := $(all-object-suffixes)
206 include $(o-iterator)
207 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
209 define o-iterator-doit
210 $(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
212 object-suffixes-left := $(all-object-suffixes)
213 include $(o-iterator)
214 $(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
216 define o-iterator-doit
217 $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
219 object-suffixes-left := $(all-object-suffixes)
220 include $(o-iterator)
221 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
224 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
225 # patterns matching sysdep directories whose assembly source files should
227 ifdef inhibit-sysdep-asm
228 define open-check-inhibit-asm
229 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
231 close-check-inhibit-asm = ;; esac ;
234 # Don't include sysd-rules until sysd-Makefile is already there and has been
235 # included. It might define inhibit-sysdep-asm, which would affect the
236 # contents of sysd-rules.
237 ifdef sysd-Makefile-done
238 -include $(+sysdir_pfx)sysd-rules
239 ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
240 # The value of $(+sysdep_dirs) the sysd-rules was computed for
241 # differs from the one we are using now. So force a rebuild of sysd-rules.
242 sysd-rules-force = FORCE
246 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
247 $(wildcard $(foreach dir,$(sysdirs),\
251 (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
252 for dir in $(config-sysdirs:%='$$(..)%'); do \
253 for o in $(all-object-suffixes); do \
254 $(open-check-inhibit-asm) \
255 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
256 \$$(compile-command.S)"; \
257 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
258 \$$(compile-command.s)"; \
259 $(close-check-inhibit-asm) \
260 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
261 \$$(compile-command.c)"; \
263 $(open-check-inhibit-asm) \
264 echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
265 \$$(make-dummy-dep)"; \
266 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
268 $(close-check-inhibit-asm) \
269 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
272 echo 'sysd-rules-done = t') > $@T
275 ifndef sysd-rules-done
276 # Don't do deps until this exists, because it provides rules to make the deps.
280 # Generate version maps, but wait until sysdep-subdirs is known
281 ifeq ($(sysd-sorted-done),t)
282 ifeq ($(versioning),yes)
283 -include $(common-objpfx)sysd-versions
284 $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
285 common-generated += $(version-maps)
286 postclean-generated += sysd-versions Versions.all abi-versions.h
288 ifndef avoid-generated
289 ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs))
290 sysd-versions-force = FORCE
293 $(common-objpfx)Versions.all: $(..)scripts/firstversions.awk \
294 $(common-objpfx)soversions.i \
296 $(wildcard $(add-ons:%=$(..)%/Versions.def))
297 { while read lib version setname; do \
298 test -z "$$setname" || echo "$$lib : $$setname"; \
299 done < $(word 2,$^); \
300 cat $(filter-out $< $(word 2,$^),$^) \
301 | $(preprocess-versions); \
302 } | LC_ALL=C $(AWK) -f $< > $@T
304 $(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
305 $(..)scripts/versions.awk \
306 $(wildcard $(all-subdirs:%=$(..)%/Versions)) \
307 $(wildcard $(sysdirs:%=%/Versions)) \
308 $(sysd-versions-force)
309 ( echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \
310 cat $(filter-out $< $(word 2,$^) $(sysd-versions-force),$^) \
311 | $(preprocess-versions) \
312 | LC_ALL=C $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
313 -v move_if_change='$(move-if-change)' \
317 endif # avoid-generated
318 endif # $(versioning) = yes
319 endif # sysd-sorted-done
322 ifndef compile-command.S
323 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
325 ifndef compile-command.s
326 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
328 ifndef compile-command.c
329 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
332 # GCC can grok options after the file name, and it looks nicer that way.
333 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
335 $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@))
337 $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@))
338 COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
340 # If we want to generate MD% checksums for the sources do this now.
342 generate-md5 = ; rm -f $(@:.d=.md5); \
343 $(CC) -E $< $(CFLAGS) $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
344 sed '/^\#/d;/^[[:space:]]*$$/d' | md5sum > $(@:.d=.md5)
349 # We need this for the output to go in the right place. It will default to
350 # empty if make was configured to work with a cc that can't grok -c and -o
351 # together. You can't compile the C library with such a compiler.
352 OUTPUT_OPTION = -o $@
354 S-CPPFLAGS = $(asm-CPPFLAGS)
356 $(make-target-directory)
358 $(+mkdep) $< $(CFLAGS) $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
360 -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \
361 $(sed-remove-objpfx) > $(@:.d=.T)
362 mv -f $(@:.d=.T) $@ $(generate-md5)
365 # Continuation lines here are dangerous because they introduce spaces!
366 define sed-remove-objpfx
367 -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
368 -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
372 # Shared library building.
374 ifeq (yes,$(build-shared))
376 # Reference map file only when versioning is selected and a map file name
378 ifeq ($(versioning),yes)
379 map-file = $(firstword $($(@F:.so=-map)) \
380 $(addprefix $(common-objpfx), \
381 $(filter $(@F:.so=.map),$(version-maps))))
382 load-map-file = $(map-file:%=-Wl,--version-script=%)
385 # Pattern rule to build a shared object from an archive of PIC objects.
386 # This must come after the installation rules so Make doesn't try to
387 # build shared libraries in place from the installed *_pic.a files.
388 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
389 # on other shared objects.
390 lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
394 $(LINK.o) -shared -Wl,-O1 -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
395 -B$(csu-objpfx) $(load-map-file) \
396 -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
397 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
398 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
399 -Wl,--whole-archive \
400 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
401 $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
404 # This macro is similar to build-shlib but it does not define a soname
405 # and it does not depend on the destination name to start with `lib'.
407 $(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
408 -B$(csu-objpfx) $(load-map-file) \
409 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
410 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
411 -Wl,--whole-archive \
412 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
413 $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
416 ifndef libc.so-version
417 # Undefine this because it can't work when we libc.so is unversioned.
418 static-only-routines =
421 # Bounded pointer thunks are only built for *.ob
422 elide-bp-thunks = $(addprefix $(bppfx),$(bp-thunks))
424 elide-routines.oS += $(filter-out $(static-only-routines),\
425 $(routines) $(aux) $(sysdep_routines)) \
427 elide-routines.os += $(static-only-routines) $(elide-bp-thunks)
429 # If we have versioned code we don't need the old versions in any of the
431 elide-routines.o += $(shared-only-routines) $(elide-bp-thunks)
432 elide-routines.op += $(shared-only-routines) $(elide-bp-thunks)
433 elide-routines.og += $(shared-only-routines) $(elide-bp-thunks)
434 elide-routines.ob += $(shared-only-routines)
436 # Don't try to use -lc when making libc.so itself.
437 # Also omits crti.o and crtn.o, which we do not want
438 # since we define our own `.init' section specially.
439 LDFLAGS-c.so = -nostdlib -nostartfiles
440 # But we still want to link libc.so against $(gnulib).
441 LDLIBS-c.so += $(gnulib)
442 # Give libc.so an entry point and make it directly runnable itself.
443 LDFLAGS-c.so += -e __libc_main
444 # Force the backward compatibility EH functions to be linked.
445 LDFLAGS-c.so += -u __register_frame
446 # Pre-link the objects of libc_pic.a so that we can locally resolve
447 # COMMON symbols before we link against ld.so. This is because ld.so
448 # contains some of libc_pic.a already, which will prevent the COMMONs
449 # from being allocated in libc.so, which introduces evil dependencies
450 # between libc.so and ld.so, which can make it impossible to upgrade.
451 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
452 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
453 -Wl,-d -Wl,--whole-archive $^
454 # Use our own special initializer and finalizer files for libc.so.
455 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
456 $(common-objpfx)libc_pic.os \
457 $(elfobjdir)/sofini.os \
458 $(elfobjdir)/interp.os $(elfobjdir)/ld.so
460 ifeq ($(versioning),yes)
461 $(common-objpfx)libc.so: $(common-objpfx)libc.map
463 common-generated += libc.so libc_pic.os
464 ifdef libc.so-version
465 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
467 common-generated += libc.so$(libc.so-version)
471 # Figure out the source filenames in this directory.
473 override sources := $(addsuffix .c,\
474 $(filter-out $(elided-routines),\
476 $(sysdep_routines)) \
477 $(addprefix $(bppfx),\
478 $(filter $(routines) $(sysdep_routines),\
480 sysdep_routines := $(sysdep_routines)
482 headers := $(headers) $(sysdep_headers)
484 # This is the list of all object files, gotten by
485 # replacing every ".c" in `sources' with a ".o".
486 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
489 # The makefile may define $(extra-libs) with `libfoo libbar'
490 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
492 # extra-lib.mk is included once for each extra lib to define rules
493 # to build it, and to add its objects to the various variables.
494 # During its evaluation, $(lib) is set to the name of the library.
495 extra-libs-left := $(extra-libs)
496 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
499 +depfiles := $(sources:.c=.d) \
500 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
501 $(addsuffix .d,$(tests) $(test-srcs))
502 ifeq ($(build-programs),yes)
503 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
505 +depfiles := $(addprefix $(objpfx),\
506 $(filter-out $(addsuffix .d,$(omit-deps)),\
511 -include $(+depfiles)
515 # Maximize efficiency by minimizing the number of rules.
516 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
517 # Don't define any builtin rules.
518 MAKEFLAGS := $(MAKEFLAGS)r
520 # Generic rule for making directories.
522 # mkdir isn't smart enough to strip a trailing /.
525 # Make sure that object files are not removed
526 # when they are intermediates between sources and library members.
527 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
529 # Make sure that the parent library archive is never removed.
530 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
532 # Use the verbose option of ar and tar when not running silently.
533 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
539 ARFLAGS := r$(verbose)
540 CREATE_ARFLAGS := cru$(verbose)
542 # This makes all the object files in the parent library archive.
544 .PHONY: lib lib-noranlib
545 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
546 lib-noranlib: libobjs
548 # For object-suffix $o, the list of objects with that suffix.
549 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
550 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
551 $(elide-routines$o)),\
553 others: $(addprefix $(objpfx),$(install-lib))
557 # Create the stamp$o files to keep the parent makefile happy.
558 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
559 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
560 $(make-target-directory)
564 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
565 # timestamp file; these rules (one explicit rule is generated for each
566 # object suffix) write a list of objects to update in the stamp file.
567 # The parent will then actually add them all to the archive in the
568 # archive rule, below.
569 define o-iterator-doit
570 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
573 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
576 object-suffixes-left := $(object-suffixes-for-libc)
577 include $(o-iterator)
581 # Now define explicit rules to build the library archives; these depend
582 # on the stamp files built above.
583 define o-iterator-doit
584 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
585 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
588 cd $(common-objdir) && \
589 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
592 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
593 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
595 $(subdirs-stamps): subdir_lib;
597 object-suffixes-left = $(object-suffixes-for-libc)
598 include $(o-iterator)
601 # This makes all the object files.
602 .PHONY: objects objs libobjs extra-objs
603 objects objs: libobjs extra-objs
604 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
605 extra-objs: $(addprefix $(objpfx),$(extra-objs))
607 # Canned sequence for building an extra library archive.
608 define build-extra-lib
609 $(patsubst %/,cd % &&,$(objpfx)) \
610 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
611 $(patsubst $(objpfx)%,%,$^)
617 .PHONY: force-install
620 # $(install-lib) are installed from the object directory into $(libdir);
621 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
622 # unless they also appear in $(non-lib.a). $(install-data) are installed
623 # as they are into $(datadir). $(headers) are installed as they are in
624 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
625 # object directory into $(bindir) and $(sbindir), respectively.
626 # $(install-others) are absolute path names of files to install; rules to
627 # install them are defined elsewhere.
629 # The simple library name to install libc.a under.
630 # This could be defined by a sysdep Makefile.
636 $(make-target-directory)
637 $(INSTALL_DATA) $< $@
640 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
641 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
642 define make-target-directory
643 $(addprefix $(..)./scripts/mkinstalldirs ,\
644 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
647 # Any directory (parent or subdir) should install libc.a; this way
648 # "make install" in a subdir is guaranteed to install everything it changes.
649 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
650 $(inst_libdir)/$(patsubst %,$(libtype$o),\
651 $(libprefix)$(libc-name)))
652 install: $(installed-libcs)
653 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
654 $(make-target-directory)
655 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
656 # Running ranlib after installing makes the __.SYMDEF time stamp up to
657 # date, which avoids messages from some linkers.
660 define do-install-program
661 $(make-target-directory)
662 $(INSTALL_PROGRAM) $< $@.new
666 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
667 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
669 ifeq (yes,$(build-shared))
670 # Find which .so's have versions.
671 versioned := $(strip $(foreach so,$(install-lib.so),\
672 $(patsubst %,$(so),$($(so)-version))))
674 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
675 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
677 install-lib-nosubdir: $(install-lib.so-versioned:%=$(inst_libdir)/%) \
678 $(install-lib.so-unversioned:%=$(inst_slibdir)/%)
680 # Install all the unversioned shared libraries.
681 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
682 $(objpfx)%.so $(+force)
683 $(do-install-program)
685 ifneq ($(findstring -s,$(LN_S)),)
688 $(SHELL) $(..)scripts/rellns-sh $< $@.new
692 # If we have no symbolic links don't bother with rellns-sh.
700 ifeq (yes,$(build-shared))
701 ifeq (no,$(cross-compiling))
702 symbolic-link-prog := $(common-objpfx)elf/sln
703 symbolic-link-list := $(common-objpfx)elf/symlink.list
704 define make-shlib-link
705 echo $(<F) $@ >> $(symbolic-link-list)
707 else # cross-compiling
708 # We need a definition that can be used by elf/Makefile's install rules.
709 symbolic-link-prog = $(LN_S)
712 ifndef make-shlib-link
713 define make-shlib-link
719 ifdef libc.so-version
720 # For a library specified to be version N, install three files:
721 # libc.so -> libc.so.N (e.g. libc.so.6)
722 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
724 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
727 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
728 $(do-install-program)
729 install: $(inst_slibdir)/libc.so$(libc.so-version)
732 # What we install as libc.so for programs to link against is in fact a
733 # link script. It contains references for the various libraries we need.
734 # The libc.so object is not complete since some functions are only defined
735 # in libc_nonshared.a.
736 # We need to use absolute paths since otherwise local copies (if they exist)
737 # of the files are taken by the linker.
738 install: $(inst_libdir)/libc.so
739 $(inst_libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \
740 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
741 $(libprefix)$(libc-name)) \
743 (echo '/* GNU ld script';\
744 echo ' Use the shared library, but some functions are only in';\
745 echo ' the static library, so try that secondarily. */';\
746 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
747 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
755 install: $(inst_slibdir)/libc.so
756 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
757 $(do-install-program)
760 ifneq (,$(versioned))
761 # Produce three sets of rules as above for all the smaller versioned libraries.
763 define o-iterator-doit
764 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
766 object-suffixes-left := $(versioned)
767 include $(o-iterator)
769 # Make symlinks in the build directory, because the versioned names might
770 # be referenced by a DT_NEEDED in another library.
771 define o-iterator-doit
772 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
774 object-suffixes-left := $(versioned)
775 include $(o-iterator)
777 generated += $(foreach o,$(versioned),$o$($o-version))
779 ifeq (,$($(subdir)-version))
780 define o-iterator-doit
781 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
785 object-suffixes-left := $(versioned)
786 include $(o-iterator)
788 define o-iterator-doit
789 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
790 $$(do-install-program)
792 object-suffixes-left := $(versioned)
793 include $(o-iterator)
795 define o-iterator-doit
796 $(inst_slibdir)/$o$($o-version): \
797 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
800 object-suffixes-left := $(versioned)
801 include $(o-iterator)
803 define o-iterator-doit
804 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
805 $$(do-install-program)
807 object-suffixes-left := $(versioned)
808 include $(o-iterator)
813 $(do-install-program)
814 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
815 $(filter-out %.so,$@))
818 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
819 $(foreach v,$(so-versions),\
820 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
823 $(foreach v,$(so-versions),\
824 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
829 $(addprefix $(inst_bindir)/,$(install-bin)): \
830 $(inst_bindir)/%: $(objpfx)% $(+force)
831 $(do-install-program)
833 ifdef install-rootsbin
834 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
835 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
836 $(do-install-program)
839 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
840 $(inst_sbindir)/%: $(objpfx)% $(+force)
841 $(do-install-program)
844 install-lib.a := $(filter lib%.a,$(install-lib))
845 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
846 ifdef install-lib-non.a
847 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
848 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
852 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
853 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
855 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
859 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
862 headers := $(strip $(headers))
864 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
868 .PHONY: install-bin-nosubdir install-rootsbin-nosubdir install-sbin-nosubdir \
869 install-lib-nosubdir install-data-nosubdir install-headers-nosubdir
870 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
871 install-rootsbin-nosubdir: \
872 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
873 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
874 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
875 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
876 $(addprefix $(libprefix),$(install-lib-non.a)))
877 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
878 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
879 install-others-nosubdir: $(install-others)
881 # We need all the `-nosubdir' targets so that `install' in the parent
882 # doesn't depend on several things which each iterate over the subdirs.
883 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
884 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
885 install-%:: install-%-nosubdir ;
887 .PHONY: install install-no-libc.a-nosubdir
888 ifeq ($(build-programs),yes)
889 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
890 install-bin-nosubdir install-lib-nosubdir \
891 install-others-nosubdir install-rootsbin-nosubdir \
892 install-sbin-nosubdir
894 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
895 install-lib-nosubdir install-others-nosubdir
897 install: install-no-libc.a-nosubdir
899 # Command to compile $< in $(objdir) using the native libraries.
900 define native-compile
901 $(make-target-directory)
902 $(patsubst %/,cd % &&,$(objpfx)) \
903 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
904 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
907 # Command to compile $< in $(common-objdir) using the native libraries.
908 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
909 define common-objdir-compile
910 $(patsubst %/,cd % &&,$(objpfx)) \
911 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
912 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
915 # We always want to use configuration definitions.
916 # Note that this is only used for commands running in $(objpfx).
917 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
919 # Support the GNU standard name for this target.
924 TAGS: $(objpfx)distinfo $(..)MakeTAGS
925 $(MAKE) $(addprefix -f ,$^) $@
927 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
928 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
937 # Common cleaning targets.
939 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
941 mostlyclean: common-mostlyclean
944 -rm -f $(patsubst %,$(objpfx)%.out,$(tests) $(test-srcs))
946 # Remove the object files.
948 -rm -f $(addprefix $(objpfx),$(tests) $(test-srcs) $(others) \
949 $(sysdep-others) stubs \
950 $(addsuffix .o,$(tests) $(test-srcs) \
953 $(addsuffix .out,$(tests) $(test-srcs)))
954 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
956 $(install-lib.so:%.so=%_pic.a))
960 $(foreach o,$(object-suffixes-for-libc),
961 -rm -f $(objpfx)stamp$o $(o-objects))
964 # Also remove the dependencies and generated source files.
965 common-clean: common-mostlyclean
966 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
967 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
968 -rm -f $(addprefix $(common-objpfx),$(common-generated))
969 -rm -f $(objpfx)distinfo
971 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
972 # for each function which is a stub. We grovel over all the .d files
973 # looking for references to <stub-tag.h>. Then we grovel over each
974 # referenced source file to see what stub function it defines.
977 .PHONY: stubs # The parent Makefile calls this target.
978 stubs: $(objpfx)stubs
980 s = $(sysdep_dir)/generic
981 $(objpfx)stubs: $(+depfiles)
982 # Use /dev/null since `...` might expand to empty.
983 (s=`cd $s && /bin/pwd`; \
984 $(patsubst %/,cd % &&,$(objpfx)) \
985 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
986 `sed -n -e '\@ $s/[^ ]*\.c@{; s@^.* $s/\([^ ]*\.c\).*$$@'"$$s"'/\1@; h; }' \
987 -e '/stub-tag\.h/{; g; p; }' \
988 $(patsubst $(objpfx)%,%,$^) /dev/null` \
992 # Make the distribution tar file.
995 dist: $(objpfx)distinfo $(..)Make-dist
996 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
998 # Avoid depending on source files found in sysdeps dirs,
999 # because the references affect implicit rule selection.
1000 dist: $(filter-out %.c %.S %.s,$(distribute))
1002 # We used to simply export all these variables, but that frequently made the
1003 # environment get too large. Instead, we write all the information into
1004 # a generated makefile fragment `distinfo', and then include it with -f in
1005 # the sub-make that makes the distribution (above).
1006 $(objpfx)distinfo: Makefile $(..)Makerules \
1007 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
1008 $(make-target-directory)
1011 .PHONY: subdir_distinfo
1012 subdir_distinfo: $(objpfx)distinfo
1014 define distinfo-vars
1016 echo > $@.new 'subdir := $(subdir)'
1017 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
1018 headers sysdep_headers distribute dont_distribute generated \
1019 others tests test-srcs extra-libs $(extra-libs:%=%-routines) \
1021 $(addprefix install-,lib lib.so data bin sbin others),
1022 echo >> $@.new '$(subdir)-$(var) := $($(var))'
1023 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
1026 ifneq (,$(strip $(gpl2lgpl)))
1027 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
1028 # Snarf from the master source and frob the copying notice.
1029 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
1031 # So I don't edit them by mistake.
1034 ifeq ($(with-cvs),yes)
1035 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@