1 # Copyright (C) 1991,92,93,94,95,96,97,98,99 Free Software Foundation, Inc.
2 # This file is part of the GNU C Library.
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.
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.
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 not,
16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
17 # Boston, MA 02111-1307, USA.
20 # Common rules for making the GNU C library. This file is included
21 # by the top-level Makefile and by all subdirectory makefiles
25 This makefile requires GNU Make.
28 REQUIRED_MAKE_VERSION = 3.74
29 REAL_MAKE_VERSION = $(firstword $(MAKE_VERSION))
31 ifneq ($(REQUIRED_MAKE_VERSION), \
32 $(firstword $(sort $(REAL_MAKE_VERSION) $(REQUIRED_MAKE_VERSION))))
33 Wrong GNU Make version. See above for the version needed.
41 # If `sources' was defined by the parent makefile, undefine it so
42 # we will later get it from wildcard search in this directory.
43 ifneq "$(findstring env,$(origin sources))" ""
48 PATH := this definition should take precedence over $(oPATH)
49 ifeq ($(PATH),$(oPATH))
50 You must not use the -e flag when building the GNU C library.
55 ifndef +included-Makeconfig
56 include $(..)Makeconfig
59 # `configure' writes a definition of `config-sysdirs' in `config.make'.
60 sysdirs = $(strip $(full-config-sysdirs))
62 +sysdir_pfx = $(common-objpfx)
64 export sysdirs := $(sysdirs)
66 +sysdep_dirs := $(full-config-sysdirs)
68 +sysdep_dirs := $(objdir) $(+sysdep_dirs)
71 # Add -I switches to get the right sysdep directories.
72 # `+includes' in Makeconfig references $(+sysdep-includes).
73 +sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
75 # This variable is used in ``include $(o-iterator)'' after defining
76 # $(o-iterator-doit) to produce some desired rule using $o for the object
77 # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
78 # is produced for each object suffix in use.
79 o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
81 # Include any system-specific makefiles.
83 # This is here so things in sysdep Makefiles can easily depend on foo.h as
84 # appropriate and not worry about where foo.h comes from, which may be
85 # system dependent and not known by that Makefile.
86 vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
87 $(+sysdep_dirs) $(..)))
89 # The same is true for RPC source files.
90 vpath %.x $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
91 $(+sysdep_dirs) $(..)))
93 # Some sysdep makefiles use this to distinguish being included here from
94 # being included individually by a subdir makefile (hurd/Makefile needs this).
97 -include $(+sysdir_pfx)sysd-Makefile
98 ifndef avoid-generated
99 ifneq ($(sysd-Makefile-sysdirs),$(config-sysdirs))
100 sysd-Makefile-force = FORCE
103 $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
104 $(sysd-Makefile-force)
106 (echo 'sysd-Makefile-sysdirs := $(config-sysdirs)'; \
107 for file in $(config-sysdirs:=/Makefile); do \
108 if [ -f $(..)$$file ]; then \
109 echo include "\$$(..)$$file"; \
112 echo 'sysd-Makefile-done=t') > $@T
116 ifndef sysd-Makefile-done
117 # Don't do deps until this exists, because it might change the sources list.
122 # Reorder before-compile so that mach things come first, and hurd things
123 # second, before all else. The mach and hurd subdirectories have many
124 # generated header files which the much of rest of the library depends on,
125 # so it is best to build them first (and mach before hurd, at that).
126 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
128 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
131 # Remove existing files from `before-compile'. Things are added there when
132 # they must exist for dependency generation to work right, but once they
133 # exist there is no further need for every single file to depend on them,
134 # and those gratuitous dependencies result in many gratuitous
136 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
138 # Don't let any before-compile file be an intermediate and get removed.
143 # Generate an ordered list of implicit rules which find the source files in
144 # each sysdep directory. The old method was to use vpath to search all the
145 # sysdep directories. However, that had the problem that a .S file in a
146 # later directory would be chosen over a .c file in an earlier directory,
147 # which does not preserve the desired sysdeps ordering behavior.
149 # When making the list of .d files to include, we can't know which ones
150 # have source in .s files, and thus do not in fact need a .d file.
151 # So we must define rules to make .d files for .s files.
152 define make-dummy-dep
153 $(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
155 $(common-objpfx)dummy.d:
156 echo '# .s files cannot contain includes, so they need no deps.' > $@
158 # It matters that this set of rules, for compiling from sources in
159 # the current directory (the $srcdir/$subdir) come before the
160 # generated sysdep rules in included from sysd-rules below. When
161 # compiling in the source tree, generated sources go into the current
162 # directory, and those should be chosen before any sources in sysdeps.
163 define o-iterator-doit
164 $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
166 object-suffixes-left := $(all-object-suffixes)
167 include $(o-iterator)
168 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
170 define o-iterator-doit
171 $(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
173 object-suffixes-left := $(all-object-suffixes)
174 include $(o-iterator)
175 $(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
177 define o-iterator-doit
178 $(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
180 object-suffixes-left := $(all-object-suffixes)
181 include $(o-iterator)
182 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
184 # Omit the objpfx rules when building in the source tree, because
185 # objpfx is empty and so these rules just override the ones above.
187 # Define first rules to find the source files in $(objpfx).
188 # Generated source files will end up there.
189 define o-iterator-doit
190 $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
192 object-suffixes-left := $(all-object-suffixes)
193 include $(o-iterator)
194 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
196 define o-iterator-doit
197 $(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
199 object-suffixes-left := $(all-object-suffixes)
200 include $(o-iterator)
201 $(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
203 define o-iterator-doit
204 $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
206 object-suffixes-left := $(all-object-suffixes)
207 include $(o-iterator)
208 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
211 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
212 # patterns matching sysdep directories whose assembly source files should
214 ifdef inhibit-sysdep-asm
215 define open-check-inhibit-asm
216 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
218 close-check-inhibit-asm = ;; esac ;
221 # Don't include sysd-rules until sysd-Makefile is already there and has been
222 # included. It might define inhibit-sysdep-asm, which would affect the
223 # contents of sysd-rules.
224 ifdef sysd-Makefile-done
225 -include $(+sysdir_pfx)sysd-rules
226 ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
227 # The value of $(+sysdep_dirs) the sysd-rules was computed for
228 # differs from the one we are using now. So force a rebuild of sysd-rules.
229 sysd-rules-force = FORCE
233 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
234 $(wildcard $(foreach dir,$(sysdirs),\
238 (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
239 for dir in $(config-sysdirs:%='$$(..)%'); do \
240 for o in $(all-object-suffixes); do \
241 $(open-check-inhibit-asm) \
242 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
243 \$$(compile-command.S)"; \
244 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
245 \$$(compile-command.s)"; \
246 $(close-check-inhibit-asm) \
247 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
248 \$$(compile-command.c)"; \
250 $(open-check-inhibit-asm) \
251 echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
252 \$$(make-dummy-dep)"; \
253 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
255 $(close-check-inhibit-asm) \
256 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
259 echo 'sysd-rules-done = t') > $@T
262 ifndef sysd-rules-done
263 # Don't do deps until this exists, because it provides rules to make the deps.
267 # Generate version maps, but wait until sysdep-subdirs is known
269 ifeq ($(versioning),yes)
270 -include $(common-objpfx)sysd-versions
271 $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
272 common-generated += $(version-maps) sysd-versions $(common-objpfx)Versions.all
274 ifndef avoid-generated
275 ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs))
276 sysd-versions-force = FORCE
279 $(common-objpfx)Versions.all: $(..)Versions.def \
280 $(wildcard $(add-ons:%=$(..)%/Versions.def))
283 $(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
284 $(..)scripts/versions.awk \
285 $(wildcard $(all-subdirs:%=$(..)%/Versions)) \
286 $(wildcard $(sysdirs:%=%/Versions)) \
287 $(sysd-versions-force)
288 { echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \
289 $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
290 -v move_if_change='$(move-if-change)' \
291 -f $(filter-out $< $(sysd-versions-force),$^); \
294 endif # avoid-generated
295 endif # $(versioning) = yes
296 endif # sysd-dirs-done
298 ifndef compile-command.S
299 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
301 ifndef compile-command.s
302 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
304 ifndef compile-command.c
305 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
308 # GCC can grok options after the file name, and it looks nicer that way.
309 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
311 $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@))
313 $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS) $(ASFLAGS-$(suffix $@))
314 COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
316 # We need this for the output to go in the right place. It will default to
317 # empty if make was configured to work with a cc that can't grok -c and -o
318 # together. You can't compile the C library with such a compiler.
319 OUTPUT_OPTION = -o $@
321 S-CPPFLAGS = $(asm-CPPFLAGS)
323 $(make-target-directory)
325 $(+mkdep) $< $(CFLAGS) $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
327 -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \
328 $(sed-remove-objpfx) > $(@:.d=.T)
332 # Continuation lines here are dangerous because they introduce spaces!
333 define sed-remove-objpfx
334 -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
335 -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
339 # Shared library building.
341 ifeq (yes,$(build-shared))
343 # Reference map file only when versioning is selected and a map file name
345 ifeq ($(versioning),yes)
346 map-file = $(firstword $($(@F:.so=-map)) \
347 $(addprefix $(common-objpfx), \
348 $(filter $(@F:.so=.map),$(version-maps))))
349 load-map-file = $(map-file:%=-Wl,--version-script=%)
352 # Pattern rule to build a shared object from an archive of PIC objects.
353 # This must come after the installation rules so Make doesn't try to
354 # build shared libraries in place from the installed *_pic.a files.
355 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
356 # on other shared objects.
357 lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
361 $(LINK.o) -shared -Wl,-O1 -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
362 -B$(csu-objpfx) $(load-map-file) \
363 -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
364 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
365 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
366 -Wl,--whole-archive \
367 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
368 $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
371 # This macro is similar to build-shlib but it does not define a soname
372 # and it does not depend on the destination name to start with `lib'.
374 $(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
375 -B$(csu-objpfx) $(load-map-file) \
376 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
377 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
378 -Wl,--whole-archive \
379 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
380 $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
383 ifndef libc.so-version
384 # Undefine this because it can't work when we libc.so is unversioned.
385 static-only-routines =
388 elide-routines.oS += $(filter-out $(static-only-routines),\
389 $(routines) $(aux) $(sysdep_routines))
390 elide-routines.os += $(static-only-routines)
392 # If we have versioned code we don't need the old versions in any of the
394 elide-routines.o += $(shared-only-routines)
395 elide-routines.op += $(shared-only-routines)
396 elide-routines.og += $(shared-only-routines)
397 elide-routines.ob += $(shared-only-routines)
399 # Don't try to use -lc when making libc.so itself.
400 # Also omits crti.o and crtn.o, which we do not want
401 # since we define our own `.init' section specially.
402 LDFLAGS-c.so = -nostdlib -nostartfiles
403 # But we still want to link libc.so against $(gnulib).
404 LDLIBS-c.so += $(gnulib)
405 # Give libc.so an entry point and make it directly runnable itself.
406 LDFLAGS-c.so += -e __libc_main
407 # Force the backward compatibility EH functions to be linked.
408 LDFLAGS-c.so += -u __register_frame
409 # Pre-link the objects of libc_pic.a so that we can locally resolve
410 # COMMON symbols before we link against ld.so. This is because ld.so
411 # contains some of libc_pic.a already, which will prevent the COMMONs
412 # from being allocated in libc.so, which introduces evil dependencies
413 # between libc.so and ld.so, which can make it impossible to upgrade.
414 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
415 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
416 -Wl,-d -Wl,--whole-archive $^
417 # Use our own special initializer and finalizer files for libc.so.
418 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
419 $(common-objpfx)libc_pic.os \
420 $(elfobjdir)/sofini.os \
421 $(elfobjdir)/interp.os $(elfobjdir)/ld.so
423 ifeq ($(versioning),yes)
424 $(common-objpfx)libc.so: $(common-objpfx)libc.map
426 common-generated += libc.so libc_pic.os
427 ifdef libc.so-version
428 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
430 common-generated += libc.so$(libc.so-version)
434 # Figure out the source filenames in this directory.
436 override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
439 sysdep_routines := $(sysdep_routines)
441 headers := $(headers) $(sysdep_headers)
443 # This is the list of all object files, gotten by
444 # replacing every ".c" in `sources' with a ".o".
445 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
448 # The makefile may define $(extra-libs) with `libfoo libbar'
449 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
451 # extra-lib.mk is included once for each extra lib to define rules
452 # to build it, and to add its objects to the various variables.
453 # During its evaluation, $(lib) is set to the name of the library.
454 extra-libs-left := $(extra-libs)
455 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
458 +depfiles := $(sources:.c=.d) \
459 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
460 $(addsuffix .d,$(tests) $(test-srcs))
461 ifeq ($(build-programs),yes)
462 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
464 +depfiles := $(addprefix $(objpfx),\
465 $(filter-out $(addsuffix .d,$(omit-deps)),\
470 -include $(+depfiles)
474 # Maximize efficiency by minimizing the number of rules.
475 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
476 # Don't define any builtin rules.
477 MAKEFLAGS := $(MAKEFLAGS)r
479 # Generic rule for making directories.
481 # mkdir isn't smart enough to strip a trailing /.
484 # Make sure that object files are not removed
485 # when they are intermediates between sources and library members.
486 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
488 # Make sure that the parent library archive is never removed.
489 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
491 # Use the verbose option of ar and tar when not running silently.
492 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
498 ARFLAGS := r$(verbose)
499 CREATE_ARFLAGS := cru$(verbose)
501 # This makes all the object files in the parent library archive.
503 .PHONY: lib lib-noranlib
504 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
505 lib-noranlib: libobjs
507 # For object-suffix $o, the list of objects with that suffix.
508 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
509 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
510 $(elide-routines$o)),\
512 others: $(addprefix $(objpfx),$(install-lib))
516 # Create the stamp$o files to keep the parent makefile happy.
517 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
518 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
519 $(make-target-directory)
523 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
524 # timestamp file; these rules (one explicit rule is generated for each
525 # object suffix) write a list of objects to update in the stamp file.
526 # The parent will then actually add them all to the archive in the
527 # archive rule, below.
528 define o-iterator-doit
529 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
532 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
535 object-suffixes-left := $(object-suffixes-for-libc)
536 include $(o-iterator)
540 # Now define explicit rules to build the library archives; these depend
541 # on the stamp files built above.
542 define o-iterator-doit
543 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
544 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
547 cd $(common-objdir) && \
548 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
551 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
552 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
554 $(subdirs-stamps): subdir_lib;
556 object-suffixes-left = $(object-suffixes-for-libc)
557 include $(o-iterator)
560 # This makes all the object files.
561 .PHONY: objects objs libobjs extra-objs
562 objects objs: libobjs extra-objs
563 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
564 extra-objs: $(addprefix $(objpfx),$(extra-objs))
566 # Canned sequence for building an extra library archive.
567 define build-extra-lib
568 $(patsubst %/,cd % &&,$(objpfx)) \
569 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
570 $(patsubst $(objpfx)%,%,$^)
576 .PHONY: force-install
579 # $(install-lib) are installed from the object directory into $(libdir);
580 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
581 # unless they also appear in $(non-lib.a). $(install-data) are installed
582 # as they are into $(datadir). $(headers) are installed as they are in
583 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
584 # object directory into $(bindir) and $(sbindir), respectively.
585 # $(install-others) are absolute path names of files to install; rules to
586 # install them are defined elsewhere.
588 # The simple library name to install libc.a under.
589 # This could be defined by a sysdep Makefile.
595 $(make-target-directory)
596 $(INSTALL_DATA) $< $@
599 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
600 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
601 define make-target-directory
602 $(addprefix $(..)./scripts/mkinstalldirs ,\
603 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
606 # Any directory (parent or subdir) should install libc.a; this way
607 # "make install" in a subdir is guaranteed to install everything it changes.
608 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
609 $(inst_libdir)/$(patsubst %,$(libtype$o),\
610 $(libprefix)$(libc-name)))
611 install: $(installed-libcs)
612 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
613 $(make-target-directory)
614 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
615 # Running ranlib after installing makes the __.SYMDEF time stamp up to
616 # date, which avoids messages from some linkers.
619 define do-install-program
620 $(make-target-directory)
621 $(INSTALL_PROGRAM) $< $@.new
625 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
626 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
628 ifeq (yes,$(build-shared))
629 # Find which .so's have versions.
630 versioned := $(strip $(foreach so,$(install-lib.so),\
631 $(patsubst %,$(so),$($(so)-version))))
633 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
634 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
636 install-lib-nosubdir: $(install-lib.so-versioned:%=$(inst_libdir)/%) \
637 $(install-lib.so-unversioned:%=$(inst_slibdir)/%)
639 # Install all the unversioned shared libraries.
640 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
641 $(objpfx)%.so $(+force)
642 $(do-install-program)
644 ifneq ($(findstring -s,$(LN_S)),)
647 $(SHELL) $(..)scripts/rellns-sh $< $@.new
651 # If we have no symbolic links don't bother with rellns-sh.
659 ifeq (no,$(cross-compiling))
660 ifeq (yes,$(build-shared))
661 symbolic-link-prog := $(common-objpfx)elf/sln
662 symbolic-link-list := $(common-objpfx)elf/symlink.list
663 define make-shlib-link
664 echo $(<F) $@ >> $(symbolic-link-list)
668 ifndef make-shlib-link
669 define make-shlib-link
675 ifdef libc.so-version
676 # For a library specified to be version N, install three files:
677 # libc.so -> libc.so.N (e.g. libc.so.6)
678 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
680 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
683 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
684 $(do-install-program)
685 install: $(inst_slibdir)/libc.so$(libc.so-version)
688 # What we install as libc.so for programs to link against is in fact a
689 # link script. It contains references for the various libraries we need.
690 # The libc.so object is not complete since some functions are only defined
691 # in libc_nonshared.a.
692 # We need to use absolute paths since otherwise local copies (if they exist)
693 # of the files are taken by the linker.
694 install: $(inst_libdir)/libc.so
695 $(inst_libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \
696 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
697 $(libprefix)$(libc-name)) \
699 (echo '/* GNU ld script';\
700 echo ' Use the shared library, but some functions are only in';\
701 echo ' the static library, so try that secondarily. */';\
702 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
703 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
711 install: $(inst_slibdir)/libc.so
712 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
713 $(do-install-program)
716 ifneq (,$(versioned))
717 # Produce three sets of rules as above for all the smaller versioned libraries.
719 define o-iterator-doit
720 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
722 object-suffixes-left := $(versioned)
723 include $(o-iterator)
725 # Make symlinks in the build directory, because the versioned names might
726 # be referenced by a DT_NEEDED in another library.
727 define o-iterator-doit
728 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
730 object-suffixes-left := $(versioned)
731 include $(o-iterator)
733 generated += $(foreach o,$(versioned),$o$($o-version))
735 ifeq (,$($(subdir)-version))
736 define o-iterator-doit
737 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
741 object-suffixes-left := $(versioned)
742 include $(o-iterator)
744 define o-iterator-doit
745 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
746 $$(do-install-program)
748 object-suffixes-left := $(versioned)
749 include $(o-iterator)
751 define o-iterator-doit
752 $(inst_slibdir)/$o$($o-version): \
753 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
756 object-suffixes-left := $(versioned)
757 include $(o-iterator)
759 define o-iterator-doit
760 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
761 $$(do-install-program)
763 object-suffixes-left := $(versioned)
764 include $(o-iterator)
769 $(do-install-program)
770 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
771 $(filter-out %.so,$@))
774 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
775 $(foreach v,$(so-versions),\
776 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
779 $(foreach v,$(so-versions),\
780 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
785 $(addprefix $(inst_bindir)/,$(install-bin)): \
786 $(inst_bindir)/%: $(objpfx)% $(+force)
787 $(do-install-program)
789 ifdef install-rootsbin
790 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
791 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
792 $(do-install-program)
795 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
796 $(inst_sbindir)/%: $(objpfx)% $(+force)
797 $(do-install-program)
800 install-lib.a := $(filter lib%.a,$(install-lib))
801 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
802 ifdef install-lib-non.a
803 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
804 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
808 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
809 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
811 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
815 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
818 headers := $(strip $(headers))
820 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
824 .PHONY: install-bin-nosubdir install-rootsbin-nosubdir install-sbin-nosubdir \
825 install-lib-nosubdir install-data-nosubdir install-headers-nosubdir
826 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
827 install-rootsbin-nosubdir: \
828 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
829 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
830 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
831 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
832 $(addprefix $(libprefix),$(install-lib-non.a)))
833 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
834 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
835 install-others-nosubdir: $(install-others)
837 # We need all the `-nosubdir' targets so that `install' in the parent
838 # doesn't depend on several things which each iterate over the subdirs.
839 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
840 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
841 install-%:: install-%-nosubdir ;
843 .PHONY: install install-no-libc.a-nosubdir
844 ifeq ($(build-programs),yes)
845 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
846 install-bin-nosubdir install-lib-nosubdir \
847 install-others-nosubdir install-rootsbin-nosubdir \
848 install-sbin-nosubdir
850 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
851 install-lib-nosubdir install-others-nosubdir
853 install: install-no-libc.a-nosubdir
855 # Command to compile $< in $(objdir) using the native libraries.
856 define native-compile
857 $(make-target-directory)
858 $(patsubst %/,cd % &&,$(objpfx)) \
859 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
860 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
863 # Command to compile $< in $(common-objdir) using the native libraries.
864 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
865 define common-objdir-compile
866 $(patsubst %/,cd % &&,$(objpfx)) \
867 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
868 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
871 # We always want to use configuration definitions.
872 # Note that this is only used for commands running in $(objpfx).
873 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
875 # Support the GNU standard name for this target.
880 TAGS: $(objpfx)distinfo $(..)MakeTAGS
881 $(MAKE) $(addprefix -f ,$^) $@
883 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
884 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
893 # Common cleaning targets.
895 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
897 mostlyclean: common-mostlyclean
900 -rm -f $(patsubst %,$(objpfx)%.out,$(tests) $(test-srcs))
902 # Remove the object files.
904 -rm -f $(addprefix $(objpfx),$(tests) $(test-srcs) $(others) \
905 $(sysdep-others) stubs \
906 $(addsuffix .o,$(tests) $(test-srcs) \
909 $(addsuffix .out,$(tests) $(test-srcs)))
910 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
912 $(install-lib.so:%.so=%_pic.a))
916 $(foreach o,$(object-suffixes-for-libc),
917 -rm -f $(objpfx)stamp$o $(o-objects))
920 # Also remove the dependencies and generated source files.
921 common-clean: common-mostlyclean
922 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
923 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
924 -rm -f $(addprefix $(common-objpfx),$(common-generated))
925 -rm -f $(objpfx)distinfo
927 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
928 # for each function which is a stub. We grovel over all the .d files
929 # looking for references to <stub-tag.h>. Then we grovel over each
930 # referenced source file to see what stub function it defines.
933 .PHONY: stubs # The parent Makefile calls this target.
934 stubs: $(objpfx)stubs
936 s = $(sysdep_dir)/generic
937 $(objpfx)stubs: $(+depfiles)
938 # Use /dev/null since `...` might expand to empty.
939 (s=`cd $s && /bin/pwd`; \
940 $(patsubst %/,cd % &&,$(objpfx)) \
941 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
942 `sed -n -e '\@ $s/[^ ]*\.c@{; s@^.* $s/\([^ ]*\.c\).*$$@'"$$s"'/\1@; h; }' \
943 -e '/stub-tag\.h/{; g; p; }' \
944 $(patsubst $(objpfx)%,%,$^) /dev/null` \
948 # Make the distribution tar file.
951 dist: $(objpfx)distinfo $(..)Make-dist
952 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
954 # Avoid depending on source files found in sysdeps dirs,
955 # because the references affect implicit rule selection.
956 dist: $(filter-out %.c %.S %.s,$(distribute))
958 # We used to simply export all these variables, but that frequently made the
959 # environment get too large. Instead, we write all the information into
960 # a generated makefile fragment `distinfo', and then include it with -f in
961 # the sub-make that makes the distribution (above).
962 $(objpfx)distinfo: Makefile $(..)Makerules \
963 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
964 $(make-target-directory)
967 .PHONY: subdir_distinfo
968 subdir_distinfo: $(objpfx)distinfo
972 echo > $@.new 'subdir := $(subdir)'
973 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
974 headers sysdep_headers distribute dont_distribute generated \
975 others tests test-srcs extra-libs $(extra-libs:%=%-routines) \
977 $(addprefix install-,lib lib.so data bin sbin others),
978 echo >> $@.new '$(subdir)-$(var) := $($(var))'
979 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
982 ifneq (,$(strip $(gpl2lgpl)))
983 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
984 # Snarf from the master source and frob the copying notice.
985 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
987 # So I don't edit them by mistake.
990 ifeq ($(with-cvs),yes)
991 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@