1 # Copyright (C) 1991, 92, 93, 94, 95, 96 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 = $(shell echo "$(MAKE_VERSION)" | sed 's/ .*//')
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 # The name of the symbol table archive member. The default is suitable for
76 # BSD style archives. It can be overridden in sysdep Makefiles when SYSV
77 # style archive are used.
79 ar-symtab-name = __.SYMDEF
81 ar-symtab-name = # The null name is used in ELF archives.
84 # Include any system-specific makefiles.
86 # This is here so things in sysdep Makefiles can easily depend on foo.h as
87 # appropriate and not worry about where foo.h comes from, which may be
88 # system dependent and not known by that Makefile.
89 vpath %.h $(subst $(empty) ,:,$(strip $(common-objpfx) $(objpfx) \
90 $(+sysdep_dirs) $(..)))
92 # Some sysdep makefiles use this to distinguish being included here from
93 # being included individually by a subdir makefile (hurd/Makefile needs this).
96 ifndef avoid-generated
97 -include $(+sysdir_pfx)sysd-Makefile
98 ifneq ($(sysd-Makefile-sysdirs),$(config-sysdirs))
99 sysd-Makefile-force = FORCE
102 $(+sysdir_pfx)sysd-Makefile: $(+sysdir_pfx)config.make $(..)Makerules \
103 $(sysd-Makefile-force)
105 (echo 'sysd-Makefile-sysdirs := $(config-sysdirs)'; \
106 for dir in $(config-sysdirs); do \
107 file=$$dir/Makefile; \
112 if [ -f $$rel$$file ]; then \
114 /*) echo include "$$file" ;; \
115 *) echo include "\$$(..)$$file" ;; \
119 echo 'sysd-Makefile-done=t') > $@T
123 ifndef sysd-Makefile-done
124 # Don't do deps until this exists, because it might change the sources list.
129 # Reorder before-compile so that mach things come first, and hurd things
130 # second, before all else. The mach and hurd subdirectories have many
131 # generated header files which the much of rest of the library depends on,
132 # so it is best to build them first (and mach before hurd, at that).
133 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
135 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
138 # Remove existing files from `before-compile'. Things are added there when
139 # they must exist for dependency generation to work right, but once they
140 # exist there is no further need for every single file to depend on them,
141 # and those gratuitous dependencies result in many gratuitous
143 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
145 # Don't let any before-compile file be an intermediate and get removed.
150 # Generate an ordered list of implicit rules which find the source files in
151 # each sysdep directory. The old method was to use vpath to search all the
152 # sysdep directories. However, that had the problem that a .S file in a
153 # later directory would be chosen over a .c file in an earlier directory,
154 # which does not preserve the desired sysdeps ordering behavior.
156 # When making the list of .d files to include, we can't know which ones
157 # have source in .s files, and thus do not in fact need a .d file.
158 # So we must define rules to make .d files for .s files.
159 define make-dummy-dep
160 $(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
162 $(common-objpfx)dummy.d:
163 echo '# .s files cannot contain includes, so they need no deps.' > $@
165 # It matters that this set of rules, for compiling from sources in
166 # the current directory (the $srcdir/$subdir) come before the
167 # generated sysdep rules in included from sysd-rules below. When
168 # compiling in the source tree, generated sources go into the current
169 # directory, and those should be chosen before any sources in sysdeps.
170 $(objpfx)%.o: %.S $(before-compile); $(compile-command.S)
171 $(objpfx)%.so: %.S $(before-compile); $(compile-command.S)
172 $(objpfx)%.po: %.S $(before-compile); $(compile-command.S)
173 $(objpfx)%.go: %.S $(before-compile); $(compile-command.S)
174 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
175 $(objpfx)%.o: %.s $(before-compile); $(compile-command.s)
176 $(objpfx)%.so: %.s $(before-compile); $(compile-command.s)
177 $(objpfx)%.po: %.s $(before-compile); $(compile-command.s)
178 $(objpfx)%.go: %.s $(before-compile); $(compile-command.s)
179 $(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
180 $(objpfx)%.o: %.c $(before-compile); $(compile-command.c)
181 $(objpfx)%.so: %.c $(before-compile); $(compile-command.c)
182 $(objpfx)%.po: %.c $(before-compile); $(compile-command.c)
183 $(objpfx)%.go: %.c $(before-compile); $(compile-command.c)
184 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
186 # Omit the objpfx rules when building in the source tree, because
187 # objpfx is empty and so these rules just override the ones above.
189 # Define first rules to find the source files in $(objpfx).
190 # Generated source files will end up there.
191 $(objpfx)%.o: $(objpfx)%.S $(before-compile); $(compile-command.S)
192 $(objpfx)%.so: $(objpfx)%.S $(before-compile); $(compile-command.S)
193 $(objpfx)%.po: $(objpfx)%.S $(before-compile); $(compile-command.S)
194 $(objpfx)%.go: $(objpfx)%.S $(before-compile); $(compile-command.S)
195 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
196 $(objpfx)%.o: $(objpfx)%.s $(before-compile); $(compile-command.s)
197 $(objpfx)%.so: $(objpfx)%.s $(before-compile); $(compile-command.s)
198 $(objpfx)%.po: $(objpfx)%.s $(before-compile); $(compile-command.s)
199 $(objpfx)%.go: $(objpfx)%.s $(before-compile); $(compile-command.s)
200 $(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
201 $(objpfx)%.o: $(objpfx)%.c $(before-compile); $(compile-command.c)
202 $(objpfx)%.so: $(objpfx)%.c $(before-compile); $(compile-command.c)
203 $(objpfx)%.po: $(objpfx)%.c $(before-compile); $(compile-command.c)
204 $(objpfx)%.go: $(objpfx)%.c $(before-compile); $(compile-command.c)
205 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
208 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
209 # patterns matching sysdep directories whose assembly source files should
211 ifdef inhibit-sysdep-asm
212 define open-check-inhibit-asm
213 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
215 close-check-inhibit-asm = ;; esac ;
218 # Don't include sysd-rules until sysd-Makefile is already there and has been
219 # included. It might define inhibit-sysdep-asm, which would affect the
220 # contents of sysd-rules.
221 ifdef sysd-Makefile-done
222 -include $(+sysdir_pfx)sysd-rules
223 ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
224 # The value of $(+sysdep_dirs) the sysd-rules was computed for
225 # differs from the one we are using now. So force a rebuild of sysd-rules.
226 sysd-rules-force = FORCE
230 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
231 $(wildcard $(foreach dir,$(sysdirs),\
235 (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
236 for sysdir in $(config-sysdirs); do \
238 /*) dir=$$sysdir ;; \
239 *) dir="\$$(..)$$sysdir" ;; \
241 for o in $(object-suffixes); do \
242 $(open-check-inhibit-asm) \
243 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
244 \$$(compile-command.S)"; \
245 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
246 \$$(compile-command.s)"; \
247 $(close-check-inhibit-asm) \
248 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
249 \$$(compile-command.c)"; \
251 $(open-check-inhibit-asm) \
252 echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
253 \$$(make-dummy-dep)"; \
254 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
256 $(close-check-inhibit-asm) \
257 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
260 echo 'sysd-rules-done = t') > $@T
263 ifndef sysd-rules-done
264 # Don't do deps until this exists, because it provides rules to make the deps.
269 ifndef compile-command.S
270 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
272 ifndef compile-command.s
273 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
275 ifndef compile-command.c
276 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
279 # GCC can grok options after the file name, and it looks nicer that way.
280 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
281 compile.S = $(CC) $< -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
282 COMPILE.S = $(CC) -c $(CPPFLAGS) -DASSEMBLER $(asm-CPPFLAGS)
283 COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
285 # We need this for the output to go in the right place. It will default to
286 # empty if make was configured to work with a cc that can't grok -c and -o
287 # together. You can't compile the C library with such a compiler.
288 OUTPUT_OPTION = -o $@
290 S-CPPFLAGS = $(asm-CPPFLAGS)
292 $(make-target-directory)
294 $(+mkdep) $< $(CPPFLAGS) $($(<:$*.%=%)-CPPFLAGS) | \
295 sed -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(object-suffixes),$(@:.d=$o)) $@,' \
296 $(sed-remove-objpfx) > $(@:.d=.T)
300 # Continuation lines here are dangerous because they introduce spaces!
301 define sed-remove-objpfx
302 -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
303 -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
307 # Shared library building.
309 ifeq (yes,$(build-shared))
311 # Pattern rule to build a shared object from an archive of PIC objects.
312 # This must come after the installation rules so Make doesn't try to
313 # build shared libraries in place from the installed *_pic.a files.
314 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
315 # on other shared objects.
316 lib%.so: lib%_pic.a; $(build-shlib)
318 ifeq ($(have-no-whole-archive),yes)
319 no-whole-archive = -Wl,--no-whole-archive
324 interp-obj = $(common-objpfx)interp.so
325 $(interp-obj): $(common-objpfx)%.so: $(..)%.c
327 common-generated += interp.so
328 CFLAGS-interp.c = -D'RUNTIME_LINKER="$(slibdir)/$(rtld-installed-name)"'
330 $(common-objpfx)libc.so: $(interp-obj)
331 $(patsubst %,$(objpfx)%.so,$(extra-libs)): $(interp-obj)
334 $(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \
336 -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
337 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
338 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \
339 -Wl,--whole-archive $^ $(no-whole-archive) \
340 $(LDLIBS-$(@F:lib%.so=%).so)
343 # Don't try to use -lc when making libc.so itself.
344 # Also omits crti.o and crtn.o, which we do not want
345 # since we define our own `.init' section specially.
346 LDFLAGS-c.so = -nostdlib -nostartfiles
347 # Give libc.so an entry point and make it directly runnable itself.
348 LDFLAGS-c.so += -e __libc_main
349 # Use our own special initializer and finalizer files for libc.so.
350 elfobjdir := $(patsubst ../$(subdir),.,$(common-objpfx)elf)
351 $(common-objpfx)libc.so: $(elfobjdir)/soinit.so \
352 $(common-objpfx)libc_pic.a \
353 $(elfobjdir)/sofini.so $(elfobjdir)/ld.so
356 ifdef libc.so-version
357 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
359 ln -s $(<F) $@ || ln $< $@
363 # Some files must not be compiled with the exception handler mechanism
364 # enabled (introduced in gcc-2.8). Use $(no-exceptions) in the
365 # appropriate CFLAGS definition.
366 ifeq ($(have-no-exceptions),yes)
367 no-exceptions = -fno-exceptions
372 # Figure out the source filenames in this directory.
374 override sources := $(addsuffix .c,$(filter-out $(elided-routines),\
377 sysdep_routines := $(sysdep_routines)
379 headers := $(headers) $(sysdep_headers)
381 # This is the list of all object files, gotten by
382 # replacing every ".c" in `sources' with a ".o".
383 override objects := $(addprefix $(objpfx),$(sources:.c=.o))
386 # This variable is used in ``include $(o-iterator)'' after defining
387 # $(o-iterator-doit) to produce some desired rule using $o for the object
388 # suffix, and setting $(object-suffixes-left) to $(object-suffixes); a copy
389 # is produced for each object suffix in use.
390 o-iterator = $(patsubst %,$(..)o-iterator.mk,$(object-suffixes-left))
392 # The makefile may define $(extra-libs) with `libfoo libbar'
393 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
395 # extra-lib.mk is included once for each extra lib to define rules
396 # to build it, and to add its objects to the various variables.
397 # During its evaluation, $(lib) is set to the name of the library.
398 extra-libs-left := $(extra-libs)
399 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
402 +depfiles := $(strip $(sources:.c=.d) \
403 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.so=.o))) \
404 $(addsuffix .d,$(others) $(tests)))
405 +depfiles := $(addprefix $(objpfx),\
406 $(filter-out $(addsuffix .d,$(omit-deps)),\
411 -include $(+depfiles)
415 # Maximize efficiency by minimizing the number of rules.
416 .SUFFIXES: # Clear the suffix list.
417 # Add the suffixes we use.
418 .SUFFIXES: .a $(object-suffixes) .S .s .c .h .d
420 # Generic rule for making directories.
422 # mkdir isn't smart enough to strip a trailing /.
425 # Make sure that object files are not removed
426 # when they are intermediates between sources and library members.
427 .PRECIOUS: $(addprefix $(objpfx)%,$(object-suffixes))
429 # Make sure that the parent library archive is never removed.
430 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
432 # Use the verbose option of ar and tar when not running silently.
433 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
439 ARFLAGS := r$(verbose)
441 # This makes all the object files in the parent library archive.
443 .PHONY: lib libobjs lib-noranlib
444 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
446 # Pattern rule for libraries: depend on the __.SYMDEF member updated by ranlib.
447 lib%.a: lib%.a($(ar-symtab-name)) ;
449 # For object-suffix $o, the list of objects with that suffix.
450 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
451 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
452 $(elide-routines$o)),\
455 libobjs: $(foreach o,$(object-suffixes),\
456 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
457 $(notdir $(o-objects))))
458 lib-noranlib: libobjs
459 others: $(addprefix $(objpfx),$(install-lib))
463 # Create the stamp$o files to keep the parent makefile happy.
464 subdir_lib: $(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir))
465 $(foreach o,$(object-suffixes),$(objpfx)stamp$o-$(subdir)):
466 $(make-target-directory)
470 # Define a pattern rule that will match many targets libc.a(foo.%), for
471 # each foo.o in $(objects) (% will just happen always to match `o'). This is
472 # the only way to define a rule that updates many targets at once with one
473 # sequence of commands.
474 define o-iterator-doit
475 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
476 $(addsuffix .%,$(filter-out $(elide-routines$o),$(notdir $(objects:.o=))))): \
477 $(objpfx)stamp.%-$(subdir) ;
479 object-suffixes-left := $(object-suffixes)
480 include $(o-iterator)
482 # The pattern rule tells Make to remake $(objpfx)stamp.%-$(subdir) as
483 # the way to update all the foo.% object files in $(objects). Now we
484 # define explicit rules to update each $(objpfx)stamp.SUFFIX-$(subdir)
485 # timestamp file; these rules (one explicit rule is generated for each
486 # object suffix) will update the parent archive with ar. Use a static
487 # pattern rule so $* is set to the object type during the commands.
488 define o-iterator-doit
489 $(objpfx)stamp$o-$(subdir): $(objpfx)stamp%-$(subdir): $(o-objects); $$(do-ar)
491 object-suffixes-left := $(object-suffixes)
492 include $(o-iterator)
494 topdir=`cd $(..).; pwd`; \
495 $(patsubst %/,cd %;,$(objpfx)) \
496 $(SHELL) $$topdir/autolock.sh ${O%-lib}.lck $(AR) cru$(verbose) ${O%-lib} \
497 $(patsubst $(objpfx)%,%,$^)
501 O%-lib = $(..)$(patsubst %,$(libtype$*),c)
505 # Rules to update the $(ar-symtab-name) member with ranlib,
506 # one for each object flavor.
507 define o-iterator-doit
508 $(common-objpfx)$(patsubst %,$(libtype$o),c)($(ar-symtab-name)): \
509 $(common-objpfx)$(patsubst %,$(libtype$o),c)(\
510 $(patsubst $(objpfx)%,%,$(o-objects))) $(subdirs-stamp-o); \
511 $(SHELL) $$(..)./autolock.sh \
512 $$(common-objpfx)$$(patsubst %,$$(libtype$o),c).lck \
513 $$(RANLIB) $$(common-objpfx)$$(patsubst %,$$(libtype$o),c)
516 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%-$d)
517 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
518 $(subdirs-stamps): subdir_lib;
520 object-suffixes-left = $(object-suffixes)
521 include $(o-iterator)
524 # This makes all the object files.
526 objects objs: $(foreach o,$(object-suffixes),$(o-objects)) \
527 $(addprefix $(objpfx),$(extra-objs))
529 # Canned sequence for building an extra library archive.
530 define build-extra-lib
531 $(patsubst %/,cd %;,$(objpfx)) \
532 $(AR) cru$(verbose) $(@:$(objpfx)%=%) \
533 $(patsubst $(objpfx)%,%,$^)
539 # $(install-lib) are installed from the object directory into $(libdir);
540 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
541 # unless they also appear in $(non-lib.a). $(install-data) are installed
542 # as they are into $(datadir). $(headers) are installed as they are in
543 # $(includedir). $(install-bin) and $(install-sbin) are installed from the
544 # object directory into $(bindir) and $(sbindir), respectively.
545 # $(install-others) are absolute path names of files to install; rules to
546 # install them are defined elsewhere.
548 # The simple library name to install libc.a under.
549 # This could be defined by a sysdep Makefile.
555 $(make-target-directory)
556 $(INSTALL_DATA) $< $@
559 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
560 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
561 define make-target-directory
562 $(addprefix $(..)./mkinstalldirs ,\
563 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
566 # Any directory (parent or subdir) that has any object files to build
567 # should install libc.a; this way "make install" in a subdir is guaranteed
568 # to install everything it changes.
570 installed-libcs := $(foreach o,$(object-suffixes),\
571 $(libdir)/$(patsubst %,$(libtype$o),\
572 $(libprefix)$(libc-name)))
573 installed-libcs := $(filter-out %_pic.a,$(installed-libcs))
574 install: $(installed-libcs)
575 $(installed-libcs): $(libdir)/lib$(libprefix)%: lib
576 $(make-target-directory)
577 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
578 # Running ranlib after installing makes the __.SYMDEF time stamp up to
579 # date, which avoids messages from some linkers.
583 define do-install-program
584 $(make-target-directory)
585 $(INSTALL_PROGRAM) $< $@.new
589 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
590 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
591 ifeq (yes,$(build-shared))
593 install-lib-nosubdir: $(install-lib.so:%=$(libdir)/%)
595 # Find which .so's have versions.
596 versioned := $(strip $(foreach so,$(install-lib.so),\
597 $(patsubst %,$(so),$($(so)-version))))
599 # Install all the unversioned shared libraries.
600 $(addprefix $(slibdir)/,$(filter-out $(versioned),$(install-lib.so))): \
601 $(slibdir)/%.so: $(objpfx)%.so; $(do-install-program)
604 here=`pwd`; cd $(@D); \
606 if test '$(@D)' = '$(<D)'; then \
607 $(LN_S) $(<F) $(@F).new; \
609 $(SHELL) $$here/$(..)rellns-sh $< $(@F).new; \
611 mv -f $(@F).new $(@F)
614 ifdef libc.so-version
615 # For a library specified to be version N, install three files:
616 # libc.so -> libc.so.N (e.g. libc.so.6)
617 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
619 $(slibdir)/libc.so$(libc.so-version): $(slibdir)/libc-$(version).so
621 $(slibdir)/libc-$(version).so: $(common-objpfx)libc.so; $(do-install-program)
622 install: $(slibdir)/libc.so$(libc.so-version)
625 # What we install as libc.so for programs to link against is in fact a
626 # link script. It contains references for the various libraries we need.
627 # The libc.so object is not complete since some functions are only defined
628 # in libc.a and the dynamic linker is an etra object.
629 install: $(libdir)/libc.so
630 $(libdir)/libc.so: $(common-objpfx)libc.so$(libc.so-version) \
631 $(elfobjdir)/$(rtld-installed-name) \
632 $(libdir)/lib$(libc-name).a
633 (echo '/* Use the shared library, but some functions are only in';\
634 echo ' the static library, so try that secondarily.'; \
635 echo ' The dynamic linker defines some functions used by $(<F),';\
636 echo ' but ld uses definitions from libc.a before examining the';\
637 echo ' dependencies of $(<F) to find $(rtld-installed-name). */';\
638 echo 'GROUP ( $(^F) )') > $@.new
644 install: $(slibdir)/libc.so
645 $(slibdir)/libc.so: $(common-objpfx)libc.so; $(do-install-program)
649 ifneq (,$(versioned))
650 # Produce three sets of rules as above for all the smaller versioned libraries.
652 define o-iterator-doit
653 $(libdir)/$o: $(slibdir)/$o$($o-version); $$(make-link)
655 object-suffixes-left := $(versioned)
656 include $(o-iterator)
658 # Make symlinks in the build directory, because the versioned names might
659 # be referenced by a DT_NEEDED in another library.
660 define o-iterator-doit
661 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
663 object-suffixes-left := $(versioned)
664 include $(o-iterator)
667 ifeq (,$($(subdir)-version))
668 define o-iterator-doit
669 $(slibdir)/$o$($o-version): $(slibdir)/$(o:.so=)-$(version).so; $$(make-link)
671 object-suffixes-left := $(versioned)
672 include $(o-iterator)
674 define o-iterator-doit
675 $(slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o; $$(do-install-program)
677 object-suffixes-left := $(versioned)
678 include $(o-iterator)
680 define o-iterator-doit
681 $(slibdir)/$o$($o-version): $(slibdir)/$(o:.so=)-$($(subdir)-version).so;
684 object-suffixes-left := $(versioned)
685 include $(o-iterator)
687 define o-iterator-doit
688 $(slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o;
689 $$(do-install-program)
691 object-suffixes-left := $(versioned)
692 include $(o-iterator)
697 $(do-install-program)
698 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
699 $(filter-out %.so,$@))
702 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
703 $(foreach v,$(so-versions),\
704 $(slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so
706 $(foreach v,$(so-versions),\
707 $(slibdir)/$(libprefix)%$v): $(common-objpfx)%.so
712 $(addprefix $(bindir)/,$(install-bin)): $(bindir)/%: $(objpfx)%
713 $(do-install-program)
716 $(addprefix $(sbindir)/,$(install-sbin)): $(sbindir)/%: $(objpfx)%
717 $(do-install-program)
720 install-lib.a := $(filter lib%.a,$(install-lib))
721 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
722 ifdef install-lib-non.a
723 $(addprefix $(libdir)/$(libprefix),$(install-lib-non.a)): \
724 $(libdir)/$(libprefix)%: $(objpfx)%
728 $(install-lib.a:lib%.a=$(libdir)/lib$(libprefix)%.a): \
729 $(libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a
731 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
735 $(addprefix $(datadir)/,$(install-data)): $(datadir)/%: %;$(do-install)
737 headers := $(strip $(headers))
739 $(addprefix $(includedir)/,$(headers)): \
740 $(includedir)/%: %;$(do-install)
743 .PHONY: install-bin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
744 install-data-nosubdir install-headers-nosubdir
745 install-bin-nosubdir: $(addprefix $(bindir)/,$(install-bin))
746 install-sbin-nosubdir: $(addprefix $(sbindir)/,$(install-sbin))
747 install-lib-nosubdir: $(addprefix $(libdir)/,\
748 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
749 $(addprefix $(libprefix),$(install-lib-non.a)))
750 install-data-nosubdir: $(addprefix $(datadir)/,$(install-data))
751 install-headers-nosubdir: $(addprefix $(includedir)/,$(headers))
752 install-others-nosubdir: $(install-others)
754 # We need all the `-nosubdir' targets so that `install' in the parent
755 # doesn't depend on several things which each iterate over the subdirs.
756 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
757 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
758 install-%:: install-%-nosubdir ;
760 .PHONY: install install-no-libc.a-nosubdir
761 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
762 install-bin-nosubdir install-lib-nosubdir \
763 install-others-nosubdir install-sbin-nosubdir
764 install: install-no-libc.a-nosubdir
766 # Command to compile $< in $(objdir) using the native libraries.
767 define native-compile
768 cwd=`pwd`; cd $(@D); $(BUILD_CC) $(BUILD_CFLAGS) \
769 $(addprefix $$cwd/,$^) -o $(@F)
772 # Command to compile $< in $(common-objdir) using the native libraries.
773 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
774 define common-objdir-compile
776 $(BUILD_CC) $(BUILD_CFLAGS) $(<:$(common-objpfx)%=$(..)%) -o $(..)$(@F)
779 # We always want to use configuration definitions.
780 BUILD_CFLAGS = -include $(..)config.h
782 # Support the GNU standard name for this target.
787 TAGS: $(common-objpfx)distinfo-$(subdir) $(..)MakeTAGS
788 $(MAKE) $(addprefix -f ,$^) $@
790 $(..)po/%.pot: $(common-objpfx)distinfo-$(subdir) $(..)MakeTAGS FORCE
791 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
800 # Common cleaning targets.
802 .PHONY: common-mostlyclean common-clean mostlyclean clean
804 mostlyclean: common-mostlyclean
806 # Remove the object files.
808 -rm -f $(addprefix $(objpfx),$(tests) $(others) \
809 $(addsuffix .o,$(tests) $(others)) \
810 $(addsuffix .out,$(tests)))
811 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib))
812 -rm -f core $(common-objpfx)stub-$(subdir)
815 $(foreach o,$(object-suffixes),
816 -rm -f $(addprefix $(objpfx),stamp$o-$(subdir)) $(o-objects))
819 # Also remove the dependencies and generated source files.
820 common-clean: common-mostlyclean
821 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
822 -rm -f $(addprefix $(common-objpfx),$(common-generated))
823 -rm -f $(common-objpfx)distinfo-$(subdir)
825 # Produce a file `stub-$(subdir)' which contains `#define __stub_FUNCTION'
826 # for each function which is a stub. We grovel over all the .d files
827 # looking for references to source files in sysdeps/stub. Then we grovel
828 # over each referenced source file to see what stub function it defines.
830 .PHONY: stubs # The parent Makefile calls this target.
831 stubs: $(common-objpfx)stub-$(subdir)
832 s = $(sysdep_dir)/stub
833 $(common-objpfx)stub-$(subdir): $(+depfiles)
834 # Use /dev/null since `...` might expand to empty.
835 (s=`cd $s; /bin/pwd`; \
836 $(patsubst %/,cd %;,$(objpfx)) \
837 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
838 `sed -n 's@^.*$s/\([a-z0-9_-]*\.c\).*$$@'"$$s"/'\1@p' \
839 $(patsubst $(objpfx)%,%,$^) /dev/null` \
843 # Make the distribution tar file.
846 dist: $(common-objpfx)distinfo-$(subdir) $(..)Make-dist
847 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
849 # Avoid depending on source files found in sysdeps dirs,
850 # because the references affect implicit rule selection.
851 dist: $(filter-out %.c %.S %.s,$(distribute))
853 # We used to simply export all these variables, but that frequently made the
854 # environment get too large. Instead, we write all the information into
855 # a generated makefile fragment `distinfo', and then include it with -f in
856 # the sub-make that makes the distribution (above).
857 $(common-objpfx)distinfo-$(subdir): Makefile $(..)Makerules
860 .PHONY: subdir_distinfo distinfo
861 subdir_distinfo: distinfo
862 distinfo: $(common-objpfx)distinfo-$(subdir)
866 echo > $@.new 'subdir := $(subdir)'
867 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
868 headers sysdep_headers distribute dont_distribute generated \
869 others tests extra-libs $(extra-libs:%=%-routines) \
871 $(addprefix install-,lib lib.so data bin sbin others),
872 echo >> $@.new '$(subdir)-$(var) := $($(var))'
873 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
876 ifneq (,$(strip $(gpl2lgpl)))
877 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
878 # Snarf from the master source and frob the copying notice.
879 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
881 # So I don't edit them by mistake.
884 test ! -d CVS || cvs commit -m'Updated from $^' $@