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 elide-routines.oS += $(filter-out $(static-only-routines),\
422 $(routines) $(aux) $(sysdep_routines))
423 elide-routines.os += $(static-only-routines)
425 # If we have versioned code we don't need the old versions in any of the
427 elide-routines.o += $(shared-only-routines)
428 elide-routines.op += $(shared-only-routines)
429 elide-routines.og += $(shared-only-routines)
430 elide-routines.ob += $(shared-only-routines)
432 # Don't try to use -lc when making libc.so itself.
433 # Also omits crti.o and crtn.o, which we do not want
434 # since we define our own `.init' section specially.
435 LDFLAGS-c.so = -nostdlib -nostartfiles
436 # But we still want to link libc.so against $(gnulib).
437 LDLIBS-c.so += $(gnulib)
438 # Give libc.so an entry point and make it directly runnable itself.
439 LDFLAGS-c.so += -e __libc_main
440 # Force the backward compatibility EH functions to be linked.
441 LDFLAGS-c.so += -u __register_frame
442 # Pre-link the objects of libc_pic.a so that we can locally resolve
443 # COMMON symbols before we link against ld.so. This is because ld.so
444 # contains some of libc_pic.a already, which will prevent the COMMONs
445 # from being allocated in libc.so, which introduces evil dependencies
446 # between libc.so and ld.so, which can make it impossible to upgrade.
447 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
448 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
449 -Wl,-d -Wl,--whole-archive $^
450 # Use our own special initializer and finalizer files for libc.so.
451 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
452 $(common-objpfx)libc_pic.os \
453 $(elfobjdir)/sofini.os \
454 $(elfobjdir)/interp.os $(elfobjdir)/ld.so
456 ifeq ($(versioning),yes)
457 $(common-objpfx)libc.so: $(common-objpfx)libc.map
459 common-generated += libc.so libc_pic.os
460 ifdef libc.so-version
461 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
463 common-generated += libc.so$(libc.so-version)
467 # Figure out the source filenames in this directory.
469 override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
472 sysdep_routines := $(sysdep_routines)
474 headers := $(headers) $(sysdep_headers)
476 # This is the list of all object files, gotten by
477 # replacing every ".c" in `sources' with a ".o".
478 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
481 # The makefile may define $(extra-libs) with `libfoo libbar'
482 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
484 # extra-lib.mk is included once for each extra lib to define rules
485 # to build it, and to add its objects to the various variables.
486 # During its evaluation, $(lib) is set to the name of the library.
487 extra-libs-left := $(extra-libs)
488 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
491 +depfiles := $(sources:.c=.d) \
492 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
493 $(addsuffix .d,$(tests) $(test-srcs))
494 ifeq ($(build-programs),yes)
495 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
497 +depfiles := $(addprefix $(objpfx),\
498 $(filter-out $(addsuffix .d,$(omit-deps)),\
503 -include $(+depfiles)
507 # Maximize efficiency by minimizing the number of rules.
508 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
509 # Don't define any builtin rules.
510 MAKEFLAGS := $(MAKEFLAGS)r
512 # Generic rule for making directories.
514 # mkdir isn't smart enough to strip a trailing /.
517 # Make sure that object files are not removed
518 # when they are intermediates between sources and library members.
519 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
521 # Make sure that the parent library archive is never removed.
522 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
524 # Use the verbose option of ar and tar when not running silently.
525 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
531 ARFLAGS := r$(verbose)
532 CREATE_ARFLAGS := cru$(verbose)
534 # This makes all the object files in the parent library archive.
536 .PHONY: lib lib-noranlib
537 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
538 lib-noranlib: libobjs
540 # For object-suffix $o, the list of objects with that suffix.
541 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
542 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
543 $(elide-routines$o)),\
545 others: $(addprefix $(objpfx),$(install-lib))
549 # Create the stamp$o files to keep the parent makefile happy.
550 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
551 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
552 $(make-target-directory)
556 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
557 # timestamp file; these rules (one explicit rule is generated for each
558 # object suffix) write a list of objects to update in the stamp file.
559 # The parent will then actually add them all to the archive in the
560 # archive rule, below.
561 define o-iterator-doit
562 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
565 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
568 object-suffixes-left := $(object-suffixes-for-libc)
569 include $(o-iterator)
573 # Now define explicit rules to build the library archives; these depend
574 # on the stamp files built above.
575 define o-iterator-doit
576 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
577 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
580 cd $(common-objdir) && \
581 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
584 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
585 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
587 $(subdirs-stamps): subdir_lib;
589 object-suffixes-left = $(object-suffixes-for-libc)
590 include $(o-iterator)
593 # This makes all the object files.
594 .PHONY: objects objs libobjs extra-objs
595 objects objs: libobjs extra-objs
596 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
597 extra-objs: $(addprefix $(objpfx),$(extra-objs))
599 # Canned sequence for building an extra library archive.
600 define build-extra-lib
601 $(patsubst %/,cd % &&,$(objpfx)) \
602 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
603 $(patsubst $(objpfx)%,%,$^)
609 .PHONY: force-install
612 # $(install-lib) are installed from the object directory into $(libdir);
613 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
614 # unless they also appear in $(non-lib.a). $(install-data) are installed
615 # as they are into $(datadir). $(headers) are installed as they are in
616 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
617 # object directory into $(bindir) and $(sbindir), respectively.
618 # $(install-others) are absolute path names of files to install; rules to
619 # install them are defined elsewhere.
621 # The simple library name to install libc.a under.
622 # This could be defined by a sysdep Makefile.
628 $(make-target-directory)
629 $(INSTALL_DATA) $< $@
632 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
633 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
634 define make-target-directory
635 $(addprefix $(..)./scripts/mkinstalldirs ,\
636 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
639 # Any directory (parent or subdir) should install libc.a; this way
640 # "make install" in a subdir is guaranteed to install everything it changes.
641 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
642 $(inst_libdir)/$(patsubst %,$(libtype$o),\
643 $(libprefix)$(libc-name)))
644 install: $(installed-libcs)
645 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
646 $(make-target-directory)
647 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
648 # Running ranlib after installing makes the __.SYMDEF time stamp up to
649 # date, which avoids messages from some linkers.
652 define do-install-program
653 $(make-target-directory)
654 $(INSTALL_PROGRAM) $< $@.new
658 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
659 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
661 ifeq (yes,$(build-shared))
662 # Find which .so's have versions.
663 versioned := $(strip $(foreach so,$(install-lib.so),\
664 $(patsubst %,$(so),$($(so)-version))))
666 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
667 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
669 install-lib-nosubdir: $(install-lib.so-versioned:%=$(inst_libdir)/%) \
670 $(install-lib.so-unversioned:%=$(inst_slibdir)/%)
672 # Install all the unversioned shared libraries.
673 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
674 $(objpfx)%.so $(+force)
675 $(do-install-program)
677 ifneq ($(findstring -s,$(LN_S)),)
680 $(SHELL) $(..)scripts/rellns-sh $< $@.new
684 # If we have no symbolic links don't bother with rellns-sh.
692 ifeq (yes,$(build-shared))
693 ifeq (no,$(cross-compiling))
694 symbolic-link-prog := $(common-objpfx)elf/sln
695 symbolic-link-list := $(common-objpfx)elf/symlink.list
696 define make-shlib-link
697 echo $(<F) $@ >> $(symbolic-link-list)
699 else # cross-compiling
700 # We need a definition that can be used by elf/Makefile's install rules.
701 symbolic-link-prog = $(LN_S)
704 ifndef make-shlib-link
705 define make-shlib-link
711 ifdef libc.so-version
712 # For a library specified to be version N, install three files:
713 # libc.so -> libc.so.N (e.g. libc.so.6)
714 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
716 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
719 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
720 $(do-install-program)
721 install: $(inst_slibdir)/libc.so$(libc.so-version)
724 # What we install as libc.so for programs to link against is in fact a
725 # link script. It contains references for the various libraries we need.
726 # The libc.so object is not complete since some functions are only defined
727 # in libc_nonshared.a.
728 # We need to use absolute paths since otherwise local copies (if they exist)
729 # of the files are taken by the linker.
730 install: $(inst_libdir)/libc.so
731 $(inst_libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \
732 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
733 $(libprefix)$(libc-name)) \
735 (echo '/* GNU ld script';\
736 echo ' Use the shared library, but some functions are only in';\
737 echo ' the static library, so try that secondarily. */';\
738 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
739 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
747 install: $(inst_slibdir)/libc.so
748 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
749 $(do-install-program)
752 ifneq (,$(versioned))
753 # Produce three sets of rules as above for all the smaller versioned libraries.
755 define o-iterator-doit
756 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
758 object-suffixes-left := $(versioned)
759 include $(o-iterator)
761 # Make symlinks in the build directory, because the versioned names might
762 # be referenced by a DT_NEEDED in another library.
763 define o-iterator-doit
764 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
766 object-suffixes-left := $(versioned)
767 include $(o-iterator)
769 generated += $(foreach o,$(versioned),$o$($o-version))
771 ifeq (,$($(subdir)-version))
772 define o-iterator-doit
773 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
777 object-suffixes-left := $(versioned)
778 include $(o-iterator)
780 define o-iterator-doit
781 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
782 $$(do-install-program)
784 object-suffixes-left := $(versioned)
785 include $(o-iterator)
787 define o-iterator-doit
788 $(inst_slibdir)/$o$($o-version): \
789 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
792 object-suffixes-left := $(versioned)
793 include $(o-iterator)
795 define o-iterator-doit
796 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
797 $$(do-install-program)
799 object-suffixes-left := $(versioned)
800 include $(o-iterator)
805 $(do-install-program)
806 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
807 $(filter-out %.so,$@))
810 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
811 $(foreach v,$(so-versions),\
812 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
815 $(foreach v,$(so-versions),\
816 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
821 $(addprefix $(inst_bindir)/,$(install-bin)): \
822 $(inst_bindir)/%: $(objpfx)% $(+force)
823 $(do-install-program)
825 ifdef install-rootsbin
826 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
827 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
828 $(do-install-program)
831 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
832 $(inst_sbindir)/%: $(objpfx)% $(+force)
833 $(do-install-program)
836 install-lib.a := $(filter lib%.a,$(install-lib))
837 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
838 ifdef install-lib-non.a
839 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
840 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
844 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
845 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
847 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
851 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
854 headers := $(strip $(headers))
856 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
860 .PHONY: install-bin-nosubdir install-rootsbin-nosubdir install-sbin-nosubdir \
861 install-lib-nosubdir install-data-nosubdir install-headers-nosubdir
862 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
863 install-rootsbin-nosubdir: \
864 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
865 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
866 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
867 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
868 $(addprefix $(libprefix),$(install-lib-non.a)))
869 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
870 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
871 install-others-nosubdir: $(install-others)
873 # We need all the `-nosubdir' targets so that `install' in the parent
874 # doesn't depend on several things which each iterate over the subdirs.
875 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
876 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
877 install-%:: install-%-nosubdir ;
879 .PHONY: install install-no-libc.a-nosubdir
880 ifeq ($(build-programs),yes)
881 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
882 install-bin-nosubdir install-lib-nosubdir \
883 install-others-nosubdir install-rootsbin-nosubdir \
884 install-sbin-nosubdir
886 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
887 install-lib-nosubdir install-others-nosubdir
889 install: install-no-libc.a-nosubdir
891 # Command to compile $< in $(objdir) using the native libraries.
892 define native-compile
893 $(make-target-directory)
894 $(patsubst %/,cd % &&,$(objpfx)) \
895 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
896 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
899 # Command to compile $< in $(common-objdir) using the native libraries.
900 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
901 define common-objdir-compile
902 $(patsubst %/,cd % &&,$(objpfx)) \
903 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
904 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
907 # We always want to use configuration definitions.
908 # Note that this is only used for commands running in $(objpfx).
909 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
911 # Support the GNU standard name for this target.
916 TAGS: $(objpfx)distinfo $(..)MakeTAGS
917 $(MAKE) $(addprefix -f ,$^) $@
919 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
920 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
929 # Common cleaning targets.
931 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
933 mostlyclean: common-mostlyclean
936 -rm -f $(patsubst %,$(objpfx)%.out,$(tests) $(test-srcs))
938 # Remove the object files.
940 -rm -f $(addprefix $(objpfx),$(tests) $(test-srcs) $(others) \
941 $(sysdep-others) stubs \
942 $(addsuffix .o,$(tests) $(test-srcs) \
945 $(addsuffix .out,$(tests) $(test-srcs)))
946 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
948 $(install-lib.so:%.so=%_pic.a))
952 $(foreach o,$(object-suffixes-for-libc),
953 -rm -f $(objpfx)stamp$o $(o-objects))
956 # Also remove the dependencies and generated source files.
957 common-clean: common-mostlyclean
958 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
959 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
960 -rm -f $(addprefix $(common-objpfx),$(common-generated))
961 -rm -f $(objpfx)distinfo
963 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
964 # for each function which is a stub. We grovel over all the .d files
965 # looking for references to <stub-tag.h>. Then we grovel over each
966 # referenced source file to see what stub function it defines.
969 .PHONY: stubs # The parent Makefile calls this target.
970 stubs: $(objpfx)stubs
972 s = $(sysdep_dir)/generic
973 $(objpfx)stubs: $(+depfiles)
974 # Use /dev/null since `...` might expand to empty.
975 (s=`cd $s && /bin/pwd`; \
976 $(patsubst %/,cd % &&,$(objpfx)) \
977 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
978 `sed -n -e '\@ $s/[^ ]*\.c@{; s@^.* $s/\([^ ]*\.c\).*$$@'"$$s"'/\1@; h; }' \
979 -e '/stub-tag\.h/{; g; p; }' \
980 $(patsubst $(objpfx)%,%,$^) /dev/null` \
984 # Make the distribution tar file.
987 dist: $(objpfx)distinfo $(..)Make-dist
988 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
990 # Avoid depending on source files found in sysdeps dirs,
991 # because the references affect implicit rule selection.
992 dist: $(filter-out %.c %.S %.s,$(distribute))
994 # We used to simply export all these variables, but that frequently made the
995 # environment get too large. Instead, we write all the information into
996 # a generated makefile fragment `distinfo', and then include it with -f in
997 # the sub-make that makes the distribution (above).
998 $(objpfx)distinfo: Makefile $(..)Makerules \
999 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
1000 $(make-target-directory)
1003 .PHONY: subdir_distinfo
1004 subdir_distinfo: $(objpfx)distinfo
1006 define distinfo-vars
1008 echo > $@.new 'subdir := $(subdir)'
1009 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
1010 headers sysdep_headers distribute dont_distribute generated \
1011 others tests test-srcs extra-libs $(extra-libs:%=%-routines) \
1013 $(addprefix install-,lib lib.so data bin sbin others),
1014 echo >> $@.new '$(subdir)-$(var) := $($(var))'
1015 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
1018 ifneq (,$(strip $(gpl2lgpl)))
1019 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
1020 # Snarf from the master source and frob the copying notice.
1021 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
1023 # So I don't edit them by mistake.
1026 ifeq ($(with-cvs),yes)
1027 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@