1 # Copyright (C) 1991, 1992, 1993, 1994, 1995 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
16 # not, write to the Free Software Foundation, Inc., 675 Mass Ave,
17 # Cambridge, MA 02139, 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.
33 # If `sources' was defined by the parent makefile, undefine it so
34 # we will later get it from wildcard search in this directory.
35 ifneq "$(findstring env,$(origin sources))" ""
39 headers := $(headers) $(sysdep_headers)
42 PATH := this definition should take precedence over $(oPATH)
43 ifeq ($(PATH),$(oPATH))
44 You must not use the -e flag when building the GNU C library.
49 ifndef +included-Makeconfig
50 include $(..)Makeconfig
53 # `configure' writes a definition of `config-sysdirs' in `config.make'.
54 sysdirs = $(config-sysdirs)
56 +sysdir_pfx = $(common-objpfx)
58 export sysdirs := $(sysdirs)
60 +sysdep_dirs := $(addprefix $(sysdep_dir)/,$(sysdirs))
62 +sysdep_dirs := $(objdir) $(+sysdep_dirs)
65 # Add -I switches to get the right sysdep directories.
66 # `+includes' in Makeconfig references $(+sysdep-includes).
67 +sysdep-includes := $(addprefix -I,$(+sysdep_dirs))
69 # Include any system-specific makefiles.
71 # This is here so things in sysdep Makefiles can easily depend on foo.h as
72 # appropriate and not worry about where foo.h comes from, which may be
73 # system dependent and not known by that Makefile.
74 vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) \
75 $(addprefix $(sysdep_dir)/,$(sysdirs)) \
78 ifeq ($(wildcard $(+sysdir_pfx)sysd-Makefile),)
79 # Don't do deps until this exists, because it might change the sources list.
83 # Some sysdep makefiles use this to distinguish being included here from
84 # being included individually by a subdir makefile (hurd/Makefile needs this).
87 ifndef avoid-generated
88 include $(+sysdir_pfx)sysd-Makefile
89 ifneq ($(sysd-Makefile-sysdirs),$(sysdirs))
90 sysd-Makefile-force = FORCE
93 $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
94 $(sysd-Makefile-force)
96 (echo 'sysd-Makefile-sysdirs := $(sysdirs)'; \
97 for dir in $(sysdirs); do \
98 file=sysdeps/$$dir/Makefile; \
99 if [ -f $(..)$$file ]; then \
100 echo include "\$$(..)$$file"; \
103 echo 'sysd-Makefile-done=t') > $@T
107 # Reorder before-compile so that mach things come first, and hurd things
108 # second, before all else. The mach and hurd subdirectories have many
109 # generated header files which the much of rest of the library depends on,
110 # so it is best to build them first (and mach before hurd, at that).
111 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
113 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
116 # Remove existing files from `before-compile'. Things are added there when
117 # they must exist for dependency generation to work right, but once they
118 # exist there is no further need for every single file to depend on them,
119 # and those gratuitous dependencies result in many gratuitous
121 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
123 # Don't let any before-compile file be an intermediate and get removed.
128 # Generate an ordered list of implicit rules which find the source files in
129 # each sysdep directory. The old method was to use vpath to search all the
130 # sysdep directories. However, that had the problem that a .S file in a
131 # later directory would be chosen over a .c file in an earlier directory,
132 # which does not preserve the desired sysdeps ordering behavior.
134 # When making the list of .d files to include, we can't know which ones
135 # have source in .s files, and thus do not in fact need a .d file.
136 # So we must define rules to make .d files for .s files.
137 define make-dummy-dep
138 $(addprefix ln $(objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
141 echo '# .s files cannot contain includes, so they need no deps.' > $@
143 # It matters that this set of rules, for compiling from sources in
144 # the current directory (the $srcdir/$subdir) come before the
145 # generated sysdep rules in included from sysd-rules below. When
146 # compiling in the source tree, generated sources go into the current
147 # directory, and those should be chosen before any sources in sysdeps.
148 $(objpfx)%.o: %.S $(before-compile); $(compile-command.S)
149 $(objpfx)%.so: %.S $(before-compile); $(compile-command.S)
150 $(objpfx)%.po: %.S $(before-compile); $(compile-command.S)
151 $(objpfx)%.go: %.S $(before-compile); $(compile-command.S)
152 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
153 $(objpfx)%.o: %.s $(before-compile); $(compile-command.s)
154 $(objpfx)%.so: %.s $(before-compile); $(compile-command.s)
155 $(objpfx)%.po: %.s $(before-compile); $(compile-command.s)
156 $(objpfx)%.go: %.s $(before-compile); $(compile-command.s)
157 $(objpfx)%.d: %.s $(objpfx)dummy.d; $(make-dummy-dep)
158 $(objpfx)%.o: %.c $(before-compile); $(compile-command.c)
159 $(objpfx)%.so: %.c $(before-compile); $(compile-command.c)
160 $(objpfx)%.po: %.c $(before-compile); $(compile-command.c)
161 $(objpfx)%.go: %.c $(before-compile); $(compile-command.c)
162 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
164 # Omit the objpfx rules when building in the source tree, because
165 # objpfx is empty and so these rules just override the ones above.
167 # Define first rules to find the source files in $(objpfx).
168 # Generated source files will end up there.
169 $(objpfx)%.o: $(objpfx)%.S $(before-compile); $(compile-command.S)
170 $(objpfx)%.so: $(objpfx)%.S $(before-compile); $(compile-command.S)
171 $(objpfx)%.po: $(objpfx)%.S $(before-compile); $(compile-command.S)
172 $(objpfx)%.go: $(objpfx)%.S $(before-compile); $(compile-command.S)
173 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
174 $(objpfx)%.o: $(objpfx)%.s $(before-compile); $(compile-command.s)
175 $(objpfx)%.so: $(objpfx)%.s $(before-compile); $(compile-command.s)
176 $(objpfx)%.po: $(objpfx)%.s $(before-compile); $(compile-command.s)
177 $(objpfx)%.go: $(objpfx)%.s $(before-compile); $(compile-command.s)
178 $(objpfx)%.d: $(objpfx)%.s $(objpfx)dummy.d; $(make-dummy-dep)
179 $(objpfx)%.o: $(objpfx)%.c $(before-compile); $(compile-command.c)
180 $(objpfx)%.so: $(objpfx)%.c $(before-compile); $(compile-command.c)
181 $(objpfx)%.po: $(objpfx)%.c $(before-compile); $(compile-command.c)
182 $(objpfx)%.go: $(objpfx)%.c $(before-compile); $(compile-command.c)
183 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
186 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
187 # patterns matching sysdep directories whose assembly source files should
189 ifdef inhibit-sysdep-asm
190 define open-check-inhibit-asm
191 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
193 close-check-inhibit-asm = ;; esac ;
196 # Don't include sysd-rules until sysd-Makefile is already there and has been
197 # included. It might define inhibit-sysdep-asm, which would affect the
198 # contents of sysd-rules.
199 ifdef sysd-Makefile-done
200 include $(+sysdir_pfx)sysd-rules
201 ifneq ($(sysd-rules-sysdirs),$(sysdirs))
202 # The value of $(sysdirs) the sysd-rules was computed for
203 # differs from the one we are using now. So force a rebuild of sysd-rules.
204 sysd-rules-force = FORCE
208 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
209 $(wildcard $(foreach dir,$(sysdirs),\
210 $(sysdep_dir)/$(dir)/Makefile))\
213 (echo 'sysd-rules-sysdirs := $(sysdirs)'; \
214 for sysdir in $(sysdirs); do \
215 dir="\$$(sysdep_dir)/$$sysdir"; \
216 for o in $(object-suffixes); do \
217 $(open-check-inhibit-asm) \
218 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
219 \$$(compile-command.S)"; \
220 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
221 \$$(compile-command.s)"; \
222 $(close-check-inhibit-asm) \
223 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
224 \$$(compile-command.c)"; \
226 $(open-check-inhibit-asm) \
227 echo "\$$(objpfx)%.d: $$dir/%.s \$$(objpfx)dummy.d; \
228 \$$(make-dummy-dep)"; \
229 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
231 $(close-check-inhibit-asm) \
232 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
237 ifndef compile-command.S
238 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
240 ifndef compile-command.s
241 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
243 ifndef compile-command.c
244 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
247 # GCC can grok options after the file name, and it looks nicer that way.
248 compile.S = $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
249 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
251 # We need this for the output to go in the right place. It will default to
252 # empty if make was configured to work with a cc that can't grok -c and -o
253 # together. You can't compile the C library with such a compiler.
254 OUTPUT_OPTION = -o $@
256 S-CPPFLAGS = $(asm-CPPFLAGS)
259 $(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
260 sed -e 's,$*\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
261 $(sed-remove-objpfx) > $(@:.d=.T)
265 sed-remove-objpfx = -e 's@ $(subst @,\@,$(objpfx))@ $$(objpfx)@g' \
266 -e 's@^$(subst @,\@,$(objpfx))@$$(objpfx)@g'
269 # Figure out the source filenames in this directory.
271 override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
274 sysdep_routines := $(sysdep_routines)
276 # This is the list of all object files, gotten by
277 # replacing every ".c" in `sources' with a ".o".
278 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
281 # This variable is used in ``include $(o-iterator)'' after defining
282 # $(o-iterator-doit) to produce some desired rule using $o for the object
283 # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
284 # is produced for each object suffix in use.
285 o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes))
287 # The makefile may define $(extra-libs) with `libfoo libbar'
288 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
290 # extra-lib.mk is included once for each extra lib to define rules
291 # to build it, and to add its objects to the various variables.
292 # During its evaluation, $(lib) is set to the name of the library.
293 extra-libs-left := $(extra-libs)
294 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
297 +depfiles := $(strip $(sources:.c=.d) \
298 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.so=.o))) \
299 $(addsuffix .d,$(others) $(tests)))
300 +depfiles := $(addprefix $(objpfx),\
301 $(filter-out $(addsuffix .d,$(omit-deps)),\
304 $(objpfx)depend-$(subdir): Makefile
306 for file in $(+depfiles:$(objpfx)%=%); do \
307 echo "include \$$(objpfx)$$file"; \
315 # Include the generated dependencies of the sources in this directory.
316 include $(objpfx)depend-$(subdir)
319 # Maximize efficiency by minimizing the number of rules.
320 .SUFFIXES: # Clear the suffix list.
321 # Add the suffixes we use.
322 .SUFFIXES: .a $(object-suffixes) .S .s .c .h .d
324 # Generic rule for making directories.
326 # mkdir isn't smart enough to strip a trailing /.
329 # Make sure that object files are not removed
330 # when they are intermediates between sources and library members.
331 .PRECIOUS: $(addprefix $(objpfx)%,$(object-suffixes))
333 # Make sure that the parent library archive is never removed.
334 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
336 # Use the verbose option of ar and tar when not running silently.
337 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
343 ARFLAGS := r$(verbose)
345 # This makes all the object files in the parent library archive.
347 .PHONY: lib libobjs lib-noranlib
348 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
350 # Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib.
351 lib%.a: lib%.a(__.SYMDEF) ;
353 libobjs: $(foreach o,$(object-suffixes),\
354 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
355 $(notdir $(objects:.o=$o))))
356 lib-noranlib: libobjs $(addprefix $(objpfx),$(install-lib))
360 # Define a pattern rule that will match many targets libc.a(foo.%), for
361 # each foo.o in $(objects) (% will just happen always to match `o'). This is
362 # the only way to define a rule that updates many targets at once with one
363 # sequence of commands. We in fact define the pattern rule to match
364 # targets libc.a(foo.%), libc_pic.a(foo.%), etc, to avoid repeating the rule.
365 # Each match will only ever be called upon to make member objects of
366 # the appropriate type in each library (i.e. libc_pic.a(foo.so)).
367 $(foreach l,$(libtypes),\
368 $(common-objpfx)$(patsubst %,$l,c)($(notdir $(objects:.o=.%)))): \
369 $(objpfx)stamp.%-$(subdir) ;
371 # The pattern rule tells Make to remake $(objpfx)stamp.%-$(subdir) as
372 # the way to update all the foo.% object files in $(objects).
373 # Now we define a static pattern rule to update each
374 # $(objpfx)stamp.SUFFIX-$(subdir) timestamp file;
375 # these rules (one explicit rule is generated for each object suffix)
376 # will update the parent archive with
377 $(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir)): \
378 $(objpfx)stamp%-$(subdir): $(objects:.o=%)
379 $(patsubst %,cd %;,$(objdir)) \
380 $(AR) cru$(verbose) ${O%-lib} \
381 $(patsubst $(objpfx)%,%,$^)
382 # `touch' won't let me touch a world-writable file I don't own. Sigh.
386 O%-lib = $(filter ../,$(firstword $(objdir) ../))$(patsubst %,$(libtype$*),c)
388 O%-lib = $(patsubst %,$(libtype$*),c)
393 # Rules to update the __.SYMDEF member with ranlib.
394 # To consolidate, each flavor library's __.SYMDEF member
395 # depends on the imaginary intermediate file `symdef.SUFFIX',
396 # where SUFFIX is that flavor's object suffix; then a pattern rule
397 # "remakes" symdef.% depending on all the libc.a(foo.%) files in $(objects).
398 $(common-objpfx)$(patsubst %,$(libtype.o),c)(__.SYMDEF): symdef.o
399 $(common-objpfx)$(patsubst %,$(libtype.so),c)(__.SYMDEF): symdef.so
400 $(common-objpfx)$(patsubst %,$(libtype.po),c)(__.SYMDEF): symdef.po
401 $(common-objpfx)$(patsubst %,$(libtype.go),c)(__.SYMDEF): symdef.go
402 symdef.%: $(foreach o,$(object-suffixes),\
403 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
404 $(patsubst $(objpfx)%.o,%.%,$(objects)))) \
405 $(filter subdir_lib,$(firstword $(subdir) subdir_lib))
406 # The last line above makes it also depend on subdir_lib for the parent.
407 $(RANLIB) $(common-objpfx)$(patsubst %,$(libtype.$*),c)
409 # This makes all the object files.
411 objects objs: $(foreach o,$(object-suffixes),$(objects:.o=$o)) \
412 $(addprefix $(objpfx),$(extra-objs))
414 # Canned sequence for building an extra library archive.
415 define build-extra-lib
416 $(patsubst %,cd %;,$(objdir)) \
417 $(AR) cru$(verbose) $(@:$(objpfx)%=%) \
418 $(patsubst $(objpfx)%,%,$^)
424 # $(install-lib) are installed from the object directory into $(libdir);
425 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
426 # unless they also appear in $(non-lib.a). $(install-data) are installed
427 # as they are into $(datadir). $(headers) are installed as they are in
428 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
429 # object directory into $(bindir) and $(sbindir), respectively.
430 # $(install-others) are absolute path names of files to install; rules to
431 # install them are defined elsewhere.
433 # The simple library name to install libc.a under.
434 # This could be defined by a sysdep Makefile.
440 $(make-target-directory)
441 $(INSTALL_DATA) $< $@
444 # Make the target directory if it doesn't exist. Because of make's
445 # directory cache, this will produce the `mkdir' command when the directory
446 # already exists, if it didn't exist at the start of the `make' run. The
447 # `-' prefix ignores errors from mkdir, so there will just be some
448 # gratuitous but harmless `File exists' messages.
449 define make-target-directory
450 $(addprefix -mkdir ,$(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
453 # Any directory (parent or subdir) that has any object files to build
454 # should install libc.a; this way "make install" in a subdir is guaranteed
455 # to install everything it changes.
457 installed-libcs := $(foreach o,$(object-suffixes),\
458 $(libdir)/$(patsubst %,$(libtype$o),\
459 $(libprefix)$(libc-name)))
460 install: $(installed-libcs)
461 $(installed-libcs): $(libdir)/lib$(libprefix)%: lib
462 $(make-target-directory)
463 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
464 # Running ranlib after installing makes the __.SYMDEF time stamp up to
465 # date, which avoids messages from some linkers.
469 define do-install-program
470 $(make-target-directory)
471 $(INSTALL_PROGRAM) $< $@.new
475 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
476 install-lib := $(filter-out %.so,$(install-lib))
477 ifeq (yes,$(build-shared))
478 install: $(libdir)/libc.so$(libc.so-version)
479 install-lib-nosubdir: $(foreach so,$(install-lib.so),\
480 $(libdir)/$(patsubst $(libprefix)lib%,lib$(libprefix)%,\
481 $(libprefix)$(so))$($(so)-version))
483 install-lib.so += libc.so
484 $(foreach v,$(sort $(foreach so,$(install-lib.so),.so$($(so)-version))),\
485 $(libdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so
486 $(do-install-program)
487 $(foreach v,$(sort $(foreach so,$(install-lib.so),.so$($(so)-version))),\
488 $(libdir)/$(libprefix)%$v): $(common-objpfx)%.so
489 $(do-install-program)
493 $(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
494 $(do-install-program)
497 $(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
498 $(do-install-program)
501 install-lib.a := $(filter lib%.a,$(install-lib))
502 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
503 ifdef install-lib-non.a
504 $(addprefix $(libdir)/$(libprefix),$(install-lib-non.a)): \
505 $(libdir)/$(libprefix)%: $(objpfx)%
509 $(install-lib.a:lib%.a=$(libdir)/lib$(libprefix)%.a): \
510 $(libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a
512 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
516 $(addprefix $(datadir)/,$(install-data)): $(datadir)/%: %;$(do-install)
518 headers := $(strip $(headers))
520 $(addprefix $(includedir)/,$(headers)): \
521 $(includedir)/%: %;$(do-install)
524 .PHONY: install-bin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
525 install-data-nosubdir install-headers-nosubdir
526 install-bin-nosubdir: $(addprefix $(bindir)/,$(install-bin))
527 install-sbin-nosubdir: $(addprefix $(sbindir)/,$(install-sbin))
528 install-lib-nosubdir: $(addprefix $(libdir)/,\
529 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
530 $(addprefix $(libprefix),$(install-lib-non.a)))
531 install-data-nosubdir: $(addprefix $(datadir)/,$(install-data))
532 install-headers-nosubdir: $(addprefix $(includedir)/,$(headers))
533 install-others-nosubdir: $(install-others)
535 # We need all the `-nosubdir' targets so that `install' in the parent
536 # doesn't depend on several things which each iterate over the subdirs.
537 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
538 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
539 install-%:: install-%-nosubdir ;
541 .PHONY: install install-no-libc.a-nosubdir
542 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
543 install-bin-nosubdir install-lib-nosubdir \
544 install-others-nosubdir install-sbin-nosubdir
545 install: install-no-libc.a-nosubdir
547 ifeq (yes,$(build-shared))
548 # Pattern rule to build a shared object from an archive of PIC objects.
549 # This must come after the installation rules so Make doesn't try to
550 # build shared libraries in place from the installed *_pic.a files.
551 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
552 # on other shared objects.
553 lib%.so: lib%_pic.a; $(build-shlib)
556 $(LINK.o) -shared -o $@ -Wl,-soname \
557 -Wl,lib$(libprefix)$(notdir $*).so$($(@F)-version) \
558 $(LDFLAGS.so) $(LDFLAGS-$(notdir $*).so) \
559 -L$(firstword $(objdir) .) -L$(common-objpfx:%/=%) \
560 -Wl,--whole-archive $^ $(LDLIBS-$(notdir $*).so)
563 # Don't try to use -lc when making libc.so itself.
564 # Also omits crti.o and crtn.o, which we do not want
565 # since we define our own `.init' section specially.
566 LDFLAGS-c.so = -nostdlib -nostartfiles
567 # Give libc.so an entry point and make it directly runnable itself.
568 LDFLAGS-c.so += -Wl,-dynamic-linker -Wl,/lib/ld.so -e __libc_print_version
569 # Use our own special initializer and finalizer files for libc.so.
570 elfobjdir := $(firstword $(objdir) $(..)elf)
571 $(common-objpfx)libc.so: $(elfobjdir)/soinit.so \
572 $(common-objpfx)libc_pic.a \
573 $(elfobjdir)/sofini.so
578 # Command to compile $< in $(objdir) using the native libraries.
579 define native-compile
580 cwd=`pwd`; cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) \
581 $(addprefix $$cwd/,$^) -o $(@F)
584 # Command to compile $< in $(common-objdir) using the native libraries.
585 define common-objdir-compile
586 cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) $(<:$(common-objpfx)%=%) -o $(@F)
589 # We always want to use configuration definitions.
590 BUILD_CFLAGS = -include $(common-objpfx)config.h
592 # Support the GNU standard name for this target.
597 TAGS: distinfo $(..)MakeTAGS
598 $(MAKE) $(addprefix -f ,$^)
605 # Common cleaning targets.
607 .PHONY: common-mostlyclean common-clean mostlyclean clean
609 mostlyclean: common-mostlyclean
611 # Remove the object files.
613 -rm -f $(addprefix $(objpfx),$(tests) $(others) \
614 $(addsuffix .o,$(tests) $(others)) \
615 $(addsuffix .out,$(tests)))
616 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib))
617 -rm -f core $(objpfx)stub-$(subdir)
620 $(foreach o,$(object-suffixes),
621 -rm -f $(addprefix $(objpfx),stamp$o-$(subdir)) $(objects:.o=$o))
624 # Also remove the dependencies and generated source files.
625 common-clean: common-mostlyclean
626 -rm -f $(objpfx)depend-$(subdir) $(+depfiles)
627 -rm -f $(addprefix $(objpfx),$(generated))
629 # Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION'
630 # for each function which is a stub. We grovel over all the .d files
631 # looking for references to source files in sysdeps/stub. Then we grovel
632 # over each referenced source file to see what stub function it defines.
634 .PHONY: stubs # The parent Makefile calls this target.
635 stubs: $(common-objpfx)stub-$(subdir)
636 s = $(sysdep_dir)/stub
637 $(common-objpfx)stub-$(subdir): $(+depfiles)
638 # Use /dev/null since `...` might expand to empty.
639 s=`cd $s; /bin/pwd`; \
640 $(patsubst %,cd %;,$(objdir)) \
641 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
642 `sed -n 's@^.*$s/\([a-z0-9_-]*\.c\).*$$@'"$$s"/'\1@p' \
643 $(patsubst $(objpfx)%,%,$^) /dev/null` \
647 # Make the distribution tar file.
650 dist: distinfo $(..)Make-dist
651 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
653 # Avoid depending on source files found in sysdeps dirs,
654 # because the references affect implicit rule selection.
655 dist: $(filter-out %.c %.S %.s,$(distribute))
657 # We used to simply export all these variables, but that frequently made the
658 # environment get too large. Instead, we write all the information into
659 # a generated makefile fragment `distinfo', and then include it with -f in
660 # the sub-make that makes the distribution (above).
661 distinfo: Makefile $(..)Makerules
667 $(foreach var,subdir sources elided-routines headers distribute \
668 dont_distribute generated others tests,
669 echo >> $@.new '$(var) := $($(var))')
670 echo >> $@.new 'sources := $$(sources) $$(addsuffix .c,$$(elided-routines))'
673 ifneq (,$(strip $(gpl2lgpl)))
674 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
675 # Snarf from the master source and frob the copying notice.
676 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
678 # So I don't edit them by mistake.
681 test ! -d CVS || cvs commit -m'Updated from $^' $@