1 # Copyright (C) 1991-2002, 2003 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 Lesser General Public
6 # License as published by the Free Software Foundation; either
7 # version 2.1 of the 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 # Lesser General Public License for more details.
14 # You should have received a copy of the GNU Lesser General Public
15 # License along with the GNU C Library; if not, write to the Free
16 # Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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 sysdep-makefiles := $(wildcard $(full_config_sysdirs:=/Makefile))
98 ifneq (,$(sysdep-makefiles))
99 include $(sysdep-makefiles)
103 # Reorder before-compile so that mach things come first, and hurd things
104 # second, before all else. The mach and hurd subdirectories have many
105 # generated header files which the much of rest of the library depends on,
106 # so it is best to build them first (and mach before hurd, at that).
107 before-compile := $(filter $(common-objpfx)mach% $(common-objpfx)hurd%,\
109 $(filter-out $(common-objpfx)mach% $(common-objpfx)hurd%,\
112 # Even before that, we need abi-versions.h which is generated right here.
113 ifeq ($(versioning),yes)
114 ifndef avoid-generated
115 before-compile := $(common-objpfx)abi-versions.h $(before-compile)
116 $(common-objpfx)abi-versions.h: $(..)scripts/abi-versions.awk \
117 $(common-objpfx)Versions.all
118 LC_ALL=C $(AWK) -v oldest_abi=$(oldest-abi) -f $^ > $@T
121 $(common-objpfx)%.latest: $(common-objpfx)abi-versions.h
122 sed -n '/ VERSION_$*_/{s/^.*_\([A-Z0-9_]*\).*$$/\1/;h;};$${g;p;}' \
123 $(common-objpfx)abi-versions.h > $@T
125 endif # avoid-generated
126 endif # $(versioning) = yes
129 # Generating headers for assembly constants.
130 # We need this defined early to get into before-compile before
131 # it's used in sysd-rules, below.
132 $(common-objpfx)%.h $(common-objpfx)%.h.d: $(..)scripts/gen-as-const.awk \
133 %.sym $(before-compile)
134 $(AWK) -f $< $(filter %.sym,$^) \
135 | $(CC) -S -o - $(CFLAGS) $(CPPFLAGS) -x c - \
136 -MD -MF $(@:.h=.h.d)T -MT '$(@:.h=.h.d) $(@:.h.d=.h)' \
137 | sed -n 's/^.*@@@name@@@\([^@]*\)@@@value@@@[^0-9Xxa-fA-F-]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*$$/#define \1 \2/p' > $(@:.h.d=.h)T
138 sed $(sed-remove-objpfx) $(sed-remove-dotdot) \
139 $(@:.h=.h.d)T > $(@:.h=.h.d)T2
141 mv -f $(@:.h=.h.d)T2 $(@:.h=.h.d)
142 mv -f $(@:.h.d=.h)T $(@:.h.d=.h)
143 vpath %.sym $(sysdirs)
144 before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
147 # When we have no deps pass doing it, then make sure the subdirectory
148 # for object files gets created.
151 before-compile += $(objpfx).
153 $(make-target-directory)
157 # Remove existing files from `before-compile'. Things are added there when
158 # they must exist for dependency generation to work right, but once they
159 # exist there is no further need for every single file to depend on them,
160 # and those gratuitous dependencies result in many gratuitous
162 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
164 # Don't let any before-compile file be an intermediate and get removed.
169 # If a makefile needs to do something conditional on something that
170 # can only be figured out from headers, write a FOO.make.c input
171 # file that uses cpp contructs and contains @@@ LINE @@@ for each LINE
172 # to emit in the generated makefile, and use -include $(common-objpfx)FOO.make.
173 $(common-objpfx)%.make: $(..)%.make.c $(..)Makerules $(before-compile)
175 (echo '# Generated from $*.make.c by Makerules.'; \
176 SUNPRO_DEPENDENCIES='$@.dT $$(common-objpfx)$*.make' \
177 $(CC) $(CFLAGS) $(CPPFLAGS) -E $< \
178 | sed -n '/@@@/{s/@@@[ ]*\(.*\)@@@/\1/;s/[ ]*$$//p;}'; \
179 echo 'common-generated += $(@F)'; \
180 sed $(sed-remove-objpfx) $(sed-remove-dotdot) $@.dT; \
185 sed-remove-dotdot := -e 's@ *\.\.\/\([^ \]*\)@ $$(..)\1@g'
187 sed-remove-dotdot := -e 's@ *\([^ \/$$][^ \]*\)@ $$(..)\1@g'
190 # Generate an ordered list of implicit rules which find the source files in
191 # each sysdep directory. The old method was to use vpath to search all the
192 # sysdep directories. However, that had the problem that a .S file in a
193 # later directory would be chosen over a .c file in an earlier directory,
194 # which does not preserve the desired sysdeps ordering behavior.
196 # When making the list of .d files to include, we can't know which ones
197 # have source in .s files, and thus do not in fact need a .d file.
198 # So we must define rules to make .d files for .s files.
199 define make-dummy-dep
200 $(addprefix ln $(common-objpfx)dummy.d ,$(filter-out $(wildcard $@),$@))
202 $(common-objpfx)dummy.d:
203 echo '# .s files cannot contain includes, so they need no deps.' > $@
205 # It matters that this set of rules, for compiling from sources in
206 # the current directory (the $srcdir/$subdir) come before the
207 # generated sysdep rules in included from sysd-rules below. When
208 # compiling in the source tree, generated sources go into the current
209 # directory, and those should be chosen before any sources in sysdeps.
210 define o-iterator-doit
211 $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
213 object-suffixes-left := $(all-object-suffixes)
214 include $(o-iterator)
215 $(objpfx)%.d: %.S $(before-compile); $(+make-deps)
217 define o-iterator-doit
218 $(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
220 object-suffixes-left := $(all-object-suffixes)
221 include $(o-iterator)
222 $(objpfx)%.d: %.s $(common-objpfx)dummy.d; $(make-dummy-dep)
224 define o-iterator-doit
225 $(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
227 object-suffixes-left := $(all-object-suffixes)
228 include $(o-iterator)
229 $(objpfx)%.d: %.c $(before-compile); $(+make-deps)
231 # Omit the objpfx rules when building in the source tree, because
232 # objpfx is empty and so these rules just override the ones above.
234 # Define first rules to find the source files in $(objpfx).
235 # Generated source files will end up there.
236 define o-iterator-doit
237 $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
239 object-suffixes-left := $(all-object-suffixes)
240 include $(o-iterator)
241 $(objpfx)%.d: $(objpfx)%.S $(before-compile); $(+make-deps)
243 define o-iterator-doit
244 $(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
246 object-suffixes-left := $(all-object-suffixes)
247 include $(o-iterator)
248 $(objpfx)%.d: $(objpfx)%.s $(common-objpfx)dummy.d; $(make-dummy-dep)
250 define o-iterator-doit
251 $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
253 object-suffixes-left := $(all-object-suffixes)
254 include $(o-iterator)
255 $(objpfx)%.d: $(objpfx)%.c $(before-compile); $(+make-deps)
258 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
259 # patterns matching sysdep directories whose assembly source files should
261 ifdef inhibit-sysdep-asm
262 define open-check-inhibit-asm
263 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
265 close-check-inhibit-asm = ;; esac ;
268 -include $(+sysdir_pfx)sysd-rules
269 ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
270 # The value of $(+sysdep_dirs) the sysd-rules was computed for
271 # differs from the one we are using now. So force a rebuild of sysd-rules.
272 sysd-rules-force = FORCE
275 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
276 $(wildcard $(foreach dir,$(sysdirs),\
280 (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
281 for dir in $(config-sysdirs:%='$$(..)%'); do \
282 for o in $(all-object-suffixes); do \
283 $(open-check-inhibit-asm) \
284 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
285 \$$(compile-command.S)"; \
286 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
287 \$$(compile-command.s)"; \
288 echo "\$$(objpfx)rtld-%$$o: $$dir/%.S \$$(before-compile); \
289 \$$(compile-command.S)"; \
290 echo "\$$(objpfx)rtld-%$$o: $$dir/%.s \$$(before-compile); \
291 \$$(compile-command.s)"; \
292 echo "\$$(objpfx)ptw-%$$o: $$dir/%.S \$$(before-compile); \
293 \$$(compile-command.S)"; \
294 echo "\$$(objpfx)ptw-%$$o: $$dir/%.s \$$(before-compile); \
295 \$$(compile-command.s)"; \
296 $(close-check-inhibit-asm) \
297 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
298 \$$(compile-command.c)"; \
299 echo "\$$(objpfx)rtld-%$$o: $$dir/%.c \$$(before-compile); \
300 \$$(compile-command.c)"; \
301 echo "\$$(objpfx)ptw-%$$o: $$dir/%.c \$$(before-compile); \
302 \$$(compile-command.c)"; \
304 $(open-check-inhibit-asm) \
305 echo "\$$(objpfx)%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
306 \$$(make-dummy-dep)"; \
307 echo "\$$(objpfx)rtld-%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
308 \$$(make-dummy-dep)"; \
309 echo "\$$(objpfx)ptw-%.d: $$dir/%.s \$$(common-objpfx)dummy.d; \
310 \$$(make-dummy-dep)"; \
311 echo "\$$(objpfx)%.d: $$dir/%.S \$$(before-compile); \
313 echo "\$$(objpfx)rtld-%.d: $$dir/%.S \$$(before-compile); \
315 echo "\$$(objpfx)ptw-%.d: $$dir/%.S \$$(before-compile); \
317 $(close-check-inhibit-asm) \
318 echo "\$$(objpfx)%.d: $$dir/%.c \$$(before-compile); \
320 echo "\$$(objpfx)rtld-%.d: $$dir/%.c \$$(before-compile); \
322 echo "\$$(objpfx)ptw-%.d: $$dir/%.c \$$(before-compile); \
324 echo "\$$(objpfx)m_%.S: $$dir/s_%.S; \$$(+make-include-of-dep)"; \
325 echo "\$$(objpfx)m_%.c: $$dir/s_%.c; \$$(+make-include-of-dep)"; \
327 echo 'sysd-rules-done = t') > $@T
330 ifndef sysd-rules-done
331 # Don't do deps until this exists, because it provides rules to make the deps.
335 # This is used by the m_%.[Sc] pattern rules in sysd-rules.
336 define +make-include-of-dep
337 echo '#include <$<>' > $@T
341 # Generate version maps, but wait until sysdep-subdirs is known
342 ifeq ($(sysd-sorted-done),t)
343 ifeq ($(versioning),yes)
344 -include $(common-objpfx)sysd-versions
345 $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
346 common-generated += $(version-maps)
347 postclean-generated += sysd-versions Versions.all abi-versions.h \
348 Versions.def.v.i Versions.def.v Versions.v.i Versions.v
350 ifndef avoid-generated
351 ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs))
352 sysd-versions-force = FORCE
355 # See %.v/%.v.i implicit rules in Makeconfig.
356 $(common-objpfx)Versions.def.v.i: $(..)Versions.def \
357 $(wildcard $(add-ons:%=$(..)%/Versions.def))
358 $(common-objpfx)Versions.all: $(..)scripts/firstversions.awk \
359 $(common-objpfx)soversions.i \
360 $(common-objpfx)Versions.def.v
361 { while read lib version setname; do \
362 test -z "$$setname" || echo "$$lib : $$setname"; \
363 done < $(word 2,$^); \
365 } | LC_ALL=C $(AWK) -f $< > $@T
367 # See %.v/%.v.i implicit rules in Makeconfig.
368 $(common-objpfx)Versions.v.i: $(wildcard $(all-subdirs:%=$(..)%/Versions)) \
369 $(wildcard $(sysdirs:%=%/Versions)) \
370 $(common-objpfx)abi-versions.h \
371 $(sysd-versions-force)
372 $(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
373 $(common-objpfx)Versions.v \
374 $(..)scripts/versions.awk
375 ( echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \
377 | LC_ALL=C $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
378 -v move_if_change='$(move-if-change)' \
382 endif # avoid-generated
383 endif # $(versioning) = yes
384 endif # sysd-sorted-done
387 ifndef compile-command.S
388 compile-command.S = $(compile.S) $(OUTPUT_OPTION)
390 ifndef compile-command.s
391 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION)
393 ifndef compile-command.c
394 compile-command.c = $(compile.c) $(OUTPUT_OPTION)
397 # GCC can grok options after the file name, and it looks nicer that way.
398 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
399 compile.S = $(CC) $< -c $(CPPFLAGS) $(S-CPPFLAGS) \
400 $(ASFLAGS) $(ASFLAGS-$(suffix $@))
401 COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
402 $(ASFLAGS) $(ASFLAGS-$(suffix $@))
403 COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
405 # If we want to generate MD5 checksums for the sources do this now.
407 generate-md5 = ; rm -f $(@:.d=.md5); \
408 $(CC) -E $< $(CFLAGS) $(CPPFLAGS) $($(patsubst .%,%,$(suffix $(<F)))-CPPFLAGS) | \
409 sed '/^\#/d;/^[[:space:]]*$$/d' | md5sum > $(@:.d=.md5)
414 # We need this for the output to go in the right place. It will default to
415 # empty if make was configured to work with a cc that can't grok -c and -o
416 # together. You can't compile the C library with such a compiler.
417 OUTPUT_OPTION = -o $@
419 # We need the $(CFLAGS) to be in there to have the right predefines during
420 # the dependency run for C sources. But having it for assembly sources can
421 # get the wrong predefines.
422 S-CPPFLAGS = -DASSEMBLER $(asm-CPPFLAGS)
424 $(make-target-directory)
425 $(+mkdep) $< $(if $(filter %.c,$<),$(CFLAGS)) \
426 $(CPPFLAGS) $($(patsubst .%,%,$(suffix $(<F)))-CPPFLAGS) | sed \
427 -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \
428 $(sed-remove-objpfx) > $(@:.d=.T)
429 mv -f $(@:.d=.T) $@ $(generate-md5)
432 # Continuation lines here are dangerous because they introduce spaces!
433 define sed-remove-objpfx
434 -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
435 -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
439 # Modify the list of routines we build for different targets
441 ifeq (yesyes,$(build-shared)$(elf))
442 ifndef libc.so-version
443 # Undefine this because it can't work when we libc.so is unversioned.
444 static-only-routines =
448 # Bounded pointer thunks are only built for *.ob
449 elide-bp-thunks = $(addprefix $(bppfx),$(bp-thunks))
451 elide-routines.oS += $(filter-out $(static-only-routines),\
452 $(routines) $(aux) $(sysdep_routines)) \
454 elide-routines.os += $(static-only-routines) $(elide-bp-thunks)
456 # If we have versioned code we don't need the old versions in any of the
458 elide-routines.o += $(shared-only-routines) $(elide-bp-thunks)
459 elide-routines.op += $(shared-only-routines) $(elide-bp-thunks)
460 elide-routines.og += $(shared-only-routines) $(elide-bp-thunks)
461 elide-routines.ob += $(shared-only-routines)
463 # Shared library building.
465 ifeq (yes,$(build-shared))
467 # Reference map file only when versioning is selected and a map file name
469 ifeq ($(versioning),yes)
470 map-file = $(firstword $($(@F:.so=-map)) \
471 $(addprefix $(common-objpfx), \
472 $(filter $(@F:.so=.map),$(version-maps))))
473 load-map-file = $(map-file:%=-Wl,--version-script=%)
476 # Pattern rule to build a shared object from an archive of PIC objects.
477 # This must come after the installation rules so Make doesn't try to
478 # build shared libraries in place from the installed *_pic.a files.
479 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
480 # on other shared objects.
481 lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
482 ifneq (,$(findstring aix,$(config-os)))
484 dump -g $< | sed '1,6d' | cut -f2 | sort | uniq) > $(<:a=exp)
489 define build-shlib-helper
490 $(LINK.o) -shared $(static-libgcc) -Wl,-O1 $(sysdep-LDFLAGS) \
491 $(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) $(config-LDFLAGS) \
492 $(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
493 $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
494 -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
495 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
496 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
499 ifneq (,$(findstring aix,$(config-os)))
500 define build-shlib-helper
501 $(LINK.o) -Wl,-G,-bM:SRE,-bnoentry,-bE:$(<:a=exp) \
502 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(extra-B-$(@F:lib%.so=%).so) \
503 $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
504 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
505 -L$(subst :, -L,$(rpath-link))
512 # binutils only position loadable notes into the first page for binaries,
513 # not for shared objects
514 $(common-objpfx)shlib.lds: $(common-objpfx)config.make
515 $(LINK.o) -shared -Wl,-O1 \
516 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
517 -Wl,--verbose 2>&1 | \
519 -e '/^=========/,/^=========/!d;/^=========/d' \
520 -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
521 -e 's/^.*\*(\.dynbss).*$$/& \
522 PROVIDE(__start___libc_freeres_ptrs = .); \
523 *(__libc_freeres_ptrs) \
524 PROVIDE(__stop___libc_freeres_ptrs = .);/'
526 common-generated += shlib.lds
529 $(build-shlib-helper) -o $@ -T $(common-objpfx)shlib.lds \
530 $(csu-objpfx)abi-note.o $(build-shlib-objlist)
533 ifneq (,$(findstring aix,$(config-os)))
535 $(build-shlib-helper) \
537 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
538 $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
541 $(build-shlib-helper) \
542 $(build-shlib-objlist)
547 ifneq (,$(findstring aix,$(config-os)))
548 define build-module-helper
549 $(LINK.o) -Wl,-G -Wl,-bM:SRE -Wl,-bnoentry -Wl,-bexpall \
550 $(sysdep-LDFLAGS) $(config-LDFLAGS) \
552 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
553 -L$(subst :, -L,$(rpath-link)) -Wl,-L=$(rpath-link)
556 define build-module-helper
557 $(LINK.o) -shared $(static-libgcc) $(sysdep-LDFLAGS) $(config-LDFLAGS) \
558 -B$(csu-objpfx) $(load-map-file) \
559 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
560 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
564 # This macro is similar to build-shlib but it does not define a soname
565 # and it does not depend on the destination name to start with `lib'.
567 # binutils only position loadable notes into the first page for binaries,
568 # not for shared objects
570 $(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
571 $(csu-objpfx)abi-note.o $(build-module-objlist)
574 ifneq (,$(findstring aix,$(config-os)))
576 $(build-module-helper) \
578 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
579 $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
584 $(build-module-helper) \
586 $(build-module-objlist)
591 build-module-helper-objlist = \
592 $(patsubst %_pic.a,$(whole-archive) %_pic.a $(no-whole-archive),\
593 $(filter-out %.lds $(map-file) $(+preinit) $(+postinit),$^))
594 whole-archive := -Wl,--whole-archive
596 build-module-objlist = $(build-module-helper-objlist) $(LDLIBS-$(@F:%.so=%).so)
597 build-shlib-objlist = $(build-module-helper-objlist) \
598 $(LDLIBS-$(@F:lib%.so=%).so)
600 # Don't try to use -lc when making libc.so itself.
601 # Also omits crti.o and crtn.o, which we do not want
602 # since we define our own `.init' section specially.
603 LDFLAGS-c.so = -nostdlib -nostartfiles
604 # But we still want to link libc.so against $(gnulib).
605 LDLIBS-c.so += $(gnulib)
606 # Give libc.so an entry point and make it directly runnable itself.
607 LDFLAGS-c.so += -e __libc_main
608 # Force the backward compatibility EH functions to be linked.
609 LDFLAGS-c.so += -u __register_frame
610 # Pre-link the objects of libc_pic.a so that we can locally resolve
611 # COMMON symbols before we link against ld.so. This is because ld.so
612 # contains some of libc_pic.a already, which will prevent the COMMONs
613 # from being allocated in libc.so, which introduces evil dependencies
614 # between libc.so and ld.so, which can make it impossible to upgrade.
616 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
617 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
618 $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
619 # Use our own special initializer and finalizer files for libc.so.
620 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
621 $(common-objpfx)libc_pic.os \
622 $(elfobjdir)/sofini.os \
623 $(elfobjdir)/interp.os $(elfobjdir)/ld.so \
624 $(common-objpfx)shlib.lds
626 ifeq ($(versioning),yes)
627 $(common-objpfx)libc.so: $(common-objpfx)libc.map
629 common-generated += libc.so libc_pic.os
630 ifdef libc.so-version
631 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
633 common-generated += libc.so$(libc.so-version)
637 ifneq (,$(findstring aix,$(config-os)))
638 $(common-objpfx)libc.so: $(common-objpfx)libc_pic.a
641 dump -g $^ | sed '1,6d' | cut -f2 | sort | uniq) > $(^:a=exp)
642 sed '/__mulh/d;/__mull/d;/__divss/d;/__divus/d;/__quoss/d;/__quous/d' \
643 /lib/syscalls.exp > $(common-objpfx)syscalls.exp
644 $(LINK.o) -G -bM:SRE -bnoentry -bE:$(^:a=exp) \
645 -bE:$(common-objpfx)syscalls.exp \
646 -bI:$(common-objpfx)syscalls.exp \
647 -L$(common-objpfx) -o $@ $^
648 # AIX runtime ld wants libc.so to be libc.a(shr.o) hardwired
649 cp $@ $(common-objpfx)shr.o
650 $(AR) $(ARFLAGS) $(common-objpfx)libc.a $(common-objpfx)shr.o
654 # Figure out the source filenames in this directory.
656 override sources := $(addsuffix .c,\
657 $(filter-out $(elided-routines),\
660 sysdep_routines := $(sysdep_routines)
662 headers := $(headers) $(sysdep_headers)
664 # This is the list of all object files, gotten by
665 # replacing every ".c" in `sources' with a ".o".
666 # We also add bounded-pointer thunks, which are later
667 # elided for all suffixes except for `.ob'.
668 override objects := $(addprefix $(objpfx),$(sources:.c=.o) \
669 $(patsubst %,$(bppfx)%.o,\
670 $(filter $(routines) $(sysdep_routines),$(bp-thunks))))
673 # The makefile may define $(extra-libs) with `libfoo libbar'
674 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
676 # extra-lib.mk is included once for each extra lib to define rules
677 # to build it, and to add its objects to the various variables.
678 # During its evaluation, $(lib) is set to the name of the library.
679 extra-libs-left := $(extra-libs)
680 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
683 +depfiles := $(sources:.c=.d) \
684 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
685 $(addsuffix .d,$(tests) $(xtests) $(test-srcs))
686 ifeq ($(build-programs),yes)
687 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
689 +depfiles := $(addprefix $(objpfx),\
690 $(filter-out $(addsuffix .d,$(omit-deps)),\
693 # Avoid the .h.d files for any .sym files whose .h files don't exist yet.
694 # They will be generated when they're needed, and trying too early won't work.
695 +gen-as-const := $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
696 +depfiles += $(addsuffix .d,$(filter $(wildcard $(+gen-as-const)),\
701 -include $(+depfiles)
705 # Maximize efficiency by minimizing the number of rules.
706 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
707 # Don't define any builtin rules.
708 MAKEFLAGS := $(MAKEFLAGS)r
710 # Generic rule for making directories.
712 # mkdir isn't smart enough to strip a trailing /.
715 # Make sure that object files are not removed
716 # when they are intermediates between sources and library members.
717 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
719 # Make sure that the parent library archive is never removed.
720 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
722 # Use the verbose option of ar and tar when not running silently.
723 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
729 ARFLAGS := r$(verbose)
730 CREATE_ARFLAGS := cru$(verbose)
732 # This makes all the object files in the parent library archive.
734 .PHONY: lib lib-noranlib
735 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
736 lib-noranlib: libobjs
738 # For object-suffix $o, the list of objects with that suffix.
739 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
740 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
741 $(elide-routines$o)),\
743 $(addprefix $(objpfx),$(o-objects$o))
745 others: $(addprefix $(objpfx),$(install-lib))
749 # Create the stamp$o files to keep the parent makefile happy.
750 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
751 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
752 $(make-target-directory)
756 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
757 # timestamp file; these rules (one explicit rule is generated for each
758 # object suffix) write a list of objects to update in the stamp file.
759 # The parent will then actually add them all to the archive in the
760 # archive rule, below.
761 define o-iterator-doit
762 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
765 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
768 object-suffixes-left := $(object-suffixes-for-libc)
769 include $(o-iterator)
773 # Now define explicit rules to build the library archives; these depend
774 # on the stamp files built above.
775 define o-iterator-doit
776 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
777 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
780 cd $(common-objdir) && \
781 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
784 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
785 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
787 $(subdirs-stamps): subdir_lib;
789 object-suffixes-left = $(object-suffixes-for-libc)
790 include $(o-iterator)
793 # This makes all the object files.
794 .PHONY: objects objs libobjs extra-objs
795 objects objs: libobjs extra-objs
796 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
797 extra-objs: $(addprefix $(objpfx),$(extra-objs))
799 # Canned sequence for building an extra library archive.
800 define build-extra-lib
801 $(patsubst %/,cd % &&,$(objpfx)) \
802 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
803 $(patsubst $(objpfx)%,%,$^)
809 .PHONY: force-install
812 # $(install-lib) are installed from the object directory into $(libdir);
813 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
814 # unless they also appear in $(non-lib.a). $(install-data) are installed
815 # as they are into $(datadir). $(headers) are installed as they are in
816 # $(includedir). $(install-bin), $(install-bin-script) and $(install-sbin)
817 # are installed from the object directory into $(bindir), $(bindir) and
818 # $(sbindir), respectively. $(install-others) are absolute path names of
819 # files to install; rules to install them are defined elsewhere.
821 # The simple library name to install libc.a under.
822 # This could be defined by a sysdep Makefile.
828 $(make-target-directory)
829 $(INSTALL_DATA) $< $@
832 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
833 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
834 define make-target-directory
835 $(addprefix $(..)./scripts/mkinstalldirs ,\
836 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
839 # Any directory (parent or subdir) should install libc.a; this way
840 # "make install" in a subdir is guaranteed to install everything it changes.
841 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
842 $(inst_libdir)/$(patsubst %,$(libtype$o),\
843 $(libprefix)$(libc-name)))
844 install: $(installed-libcs)
845 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
846 $(make-target-directory)
847 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
848 # Running ranlib after installing makes the __.SYMDEF time stamp up to
849 # date, which avoids messages from some linkers.
852 define do-install-program
853 $(make-target-directory)
854 $(INSTALL_PROGRAM) $< $@.new
858 define do-install-script
859 $(make-target-directory)
860 $(INSTALL_SCRIPT) $< $@.new
864 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
865 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
867 ifeq (yes,$(build-shared))
868 # Find which .so's have versions.
869 versioned := $(strip $(foreach so,$(install-lib.so),\
870 $(patsubst %,$(so),$($(so)-version))))
872 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
873 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
875 # For versioned libraries, we install three files:
876 # $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
877 # $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
878 # $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
879 V := $(firstword $($(subdir)-version) $(version))
880 install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
881 $(foreach L,$(install-lib.so-versioned),\
883 $(inst_slibdir)/$(L:.so=)-$V.so \
884 $(inst_slibdir)/$L$($L-version))
886 # Install all the unversioned shared libraries.
887 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
888 $(objpfx)%.so $(+force)
889 $(do-install-program)
891 ifneq ($(findstring -s,$(LN_S)),)
894 $(SHELL) $(..)scripts/rellns-sh $< $@.new
898 # If we have no symbolic links don't bother with rellns-sh.
906 ifeq (yes,$(build-shared))
907 ifeq (no,$(cross-compiling))
908 symbolic-link-prog := $(common-objpfx)elf/sln
909 symbolic-link-list := $(common-objpfx)elf/symlink.list
910 define make-shlib-link
911 echo $(<F) $@ >> $(symbolic-link-list)
913 else # cross-compiling
914 # We need a definition that can be used by elf/Makefile's install rules.
915 symbolic-link-prog = $(LN_S)
918 ifndef make-shlib-link
919 define make-shlib-link
925 ifdef libc.so-version
926 # For a library specified to be version N, install three files:
927 # libc.so -> libc.so.N (e.g. libc.so.6)
928 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
930 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
933 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
934 $(do-install-program)
935 install: $(inst_slibdir)/libc.so$(libc.so-version)
937 # This fragment of linker script gives the OUTPUT_FORMAT statement
938 # for the configuration we are building. We put this statement into
939 # the linker scripts we install for -lc et al so that they will not be
940 # used by a link for a different format on a multi-architecture system.
941 $(common-objpfx)format.lds: $(..)scripts/output-format.sed \
942 $(common-objpfx)config.make \
943 $(common-objpfx)config.h $(..)Makerules
944 $(LINK.o) -shared $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
945 -x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
946 | sed -n -f $< > $@.new
949 common-generated += format.lds
952 # What we install as libc.so for programs to link against is in fact a
953 # link script. It contains references for the various libraries we need.
954 # The libc.so object is not complete since some functions are only defined
955 # in libc_nonshared.a.
956 # We need to use absolute paths since otherwise local copies (if they exist)
957 # of the files are taken by the linker.
958 install: $(inst_libdir)/libc.so
959 $(inst_libdir)/libc.so: $(common-objpfx)format.lds \
960 $(common-objpfx)libc.so$(libc.so-version) \
961 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
962 $(libprefix)$(libc-name)) \
964 (echo '/* GNU ld script';\
965 echo ' Use the shared library, but some functions are only in';\
966 echo ' the static library, so try that secondarily. */';\
968 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
969 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
977 install: $(inst_slibdir)/libc.so
978 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
979 $(do-install-program)
982 ifneq (,$(versioned))
983 # Produce three sets of rules as above for all the smaller versioned libraries.
985 define o-iterator-doit
986 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
988 object-suffixes-left := $(filter-out $(install-lib-ldscripts),$(versioned))
989 ifneq (,$(object-suffixes-left))
990 include $(o-iterator)
993 # Make symlinks in the build directory, because the versioned names might
994 # be referenced by a DT_NEEDED in another library.
995 define o-iterator-doit
996 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
998 object-suffixes-left := $(versioned)
999 include $(o-iterator)
1001 generated += $(foreach o,$(versioned),$o$($o-version))
1003 ifeq (,$($(subdir)-version))
1004 define o-iterator-doit
1005 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
1009 object-suffixes-left := $(versioned)
1010 include $(o-iterator)
1012 define o-iterator-doit
1013 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
1014 $$(do-install-program)
1016 object-suffixes-left := $(versioned)
1017 include $(o-iterator)
1019 define o-iterator-doit
1020 $(inst_slibdir)/$o$($o-version): \
1021 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
1024 object-suffixes-left := $(versioned)
1025 include $(o-iterator)
1027 define o-iterator-doit
1028 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
1029 $$(do-install-program)
1031 object-suffixes-left := $(versioned)
1032 include $(o-iterator)
1036 define do-install-so
1037 $(do-install-program)
1038 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
1039 $(filter-out %.so,$@))
1042 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
1043 $(foreach v,$(so-versions),\
1044 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
1047 $(foreach v,$(so-versions),\
1048 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
1053 $(addprefix $(inst_bindir)/,$(install-bin)): \
1054 $(inst_bindir)/%: $(objpfx)% $(+force)
1055 $(do-install-program)
1057 ifdef install-bin-script
1058 $(addprefix $(inst_bindir)/,$(install-bin-script)): \
1059 $(inst_bindir)/%: $(objpfx)% $(+force)
1060 $(do-install-script)
1062 ifdef install-rootsbin
1063 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
1064 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
1065 $(do-install-program)
1068 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
1069 $(inst_sbindir)/%: $(objpfx)% $(+force)
1070 $(do-install-program)
1073 install-lib.a := $(filter lib%.a,$(install-lib))
1074 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
1075 ifdef install-lib-non.a
1076 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
1077 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
1081 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
1082 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
1084 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
1088 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
1091 headers := $(strip $(headers))
1093 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
1097 .PHONY: install-bin-nosubdir install-bin-script-nosubdir \
1098 install-rootsbin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
1099 install-data-nosubdir install-headers-nosubdir
1100 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
1101 install-bin-script-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin-script))
1102 install-rootsbin-nosubdir: \
1103 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
1104 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
1105 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
1106 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
1107 $(addprefix $(libprefix),$(install-lib-non.a)))
1108 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
1109 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
1110 install-others-nosubdir: $(install-others)
1112 # We need all the `-nosubdir' targets so that `install' in the parent
1113 # doesn't depend on several things which each iterate over the subdirs.
1114 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
1115 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
1116 install-%:: install-%-nosubdir ;
1118 .PHONY: install install-no-libc.a-nosubdir
1119 ifeq ($(build-programs),yes)
1120 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1121 install-bin-nosubdir install-bin-script-nosubdir \
1122 install-lib-nosubdir install-others-nosubdir \
1123 install-rootsbin-nosubdir install-sbin-nosubdir
1125 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1126 install-lib-nosubdir install-others-nosubdir
1128 install: install-no-libc.a-nosubdir
1130 # Command to compile $< in $(objdir) using the native libraries.
1131 define native-compile
1132 $(make-target-directory)
1133 $(patsubst %/,cd % &&,$(objpfx)) \
1134 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1135 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
1138 # Command to compile $< in $(common-objdir) using the native libraries.
1139 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
1140 define common-objdir-compile
1141 $(patsubst %/,cd % &&,$(objpfx)) \
1142 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1143 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
1146 # We always want to use configuration definitions.
1147 # Note that this is only used for commands running in $(objpfx).
1148 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
1150 # Support the GNU standard name for this target.
1153 # Special target to run tests which cannot be run unconditionally.
1154 # Maintainers should use this target.
1158 all-nonlib = $(strip $(tests) $(xtests) $(test-srcs) $(test-extras) $(others))
1159 ifneq (,$(all-nonlib))
1160 cpp-srcs-left = $(all-nonlib:=.c)
1162 include $(patsubst %,$(..)cppflags-iterator.mk,$(all-nonlib))
1165 # The include magic above causes those files to use this variable for flags.
1166 CPPFLAGS-nonlib = -DNOT_IN_libc=1
1169 ifeq ($(versioning),yes)
1170 # Generate normalized lists of symbols, versions, and data sizes.
1171 # This is handy for checking against existing library binaries.
1173 %.symlist: $(..)scripts/abilist.awk %.dynsym
1174 LC_ALL=C $(AWK) -f $^ > $@T
1178 $(OBJDUMP) --dynamic-syms $< > $@T
1181 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1182 $(..)abilist/%.abilist $(objpfx)%.symlist
1184 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1185 $(..)abilist/%.abilist $(common-objpfx)%.symlist
1189 $(AWK) -f $< -v 'config=$(check-abi-config)' \
1190 $(filter %.abilist,$^) \
1191 | { diff -pu0 - $(filter %.symlist,$^) $(check-abi-warn) ; }
1193 ifeq ($(enable-check-abi),warn)
1194 check-abi-warn = || echo '*** WARNING: $*.so failed ABI check'
1197 ifeq ($(firstword $(sysd-sorted-done) f)$(firstword $(generating) f),tf)
1198 -include $(common-objpfx)tls.make
1200 ifeq ($(use-tls),yes)
1203 ifeq ($(use-thread),yes)
1204 config-tls := thread
1206 check-abi-config := \
1207 $(config-machine)-$(config-vendor)-$(config-os)/$(config-tls)
1210 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1213 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1214 $(common-objpfx)%.symlist
1216 ifndef update-abi-config
1218 @echo 'Run $(MAKE) $@ update-abi-config=REGEXP'; exit 2
1222 LC_ALL=C $(AWK) -v config='$(update-abi-config)' -f $^ \
1223 > $(..)abilist/$*.abilist.new
1224 @if cmp -s $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist 2> /dev/null; \
1225 then rm -f $(..)abilist/$*.abilist.new; \
1226 echo '+++ $(..)abilist/$*.abilist is unchanged'; \
1227 else mv -f $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist; \
1228 echo '*** Now check $*.abilist changes for correctness ***'; \
1233 .PHONY: update-abi check-abi
1234 update-abi: $(patsubst %.so,update-abi-%,$(install-lib.so-versioned))
1235 check-abi: $(patsubst %.so,check-abi-%,$(install-lib.so-versioned))
1237 subdir_check-abi: check-abi
1238 subdir_update-abi: update-abi
1240 check-abi: subdir_check-abi
1241 update-abi: subdir_update-abi
1244 ifeq ($(subdir),elf)
1245 check-abi: check-abi-libc
1246 update-abi: update-abi-libc
1247 common-generated += libc.symlist
1250 ifeq ($(build-shared),yes)
1251 ifneq ($(enable-check-abi),no)
1260 # There's no good place to put this - here will do.
1261 # The dependencies are wrong if it's run from the top level.
1262 ifeq ($(filter %posix, $(sysdirs)),)
1273 stdio_lim = $(common-objpfx)bits/stdio_lim.h
1275 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
1276 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
1277 $(common-objpfx)config.make
1278 $(make-target-directory)
1279 echo '#include "$(..)posix/bits/posix1_lim.h"' | \
1280 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1281 $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
1282 echo '#include "$(..)misc/sys/uio.h"' | \
1283 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1284 $(CC) -D_LIBC=1 $(+includes) -E -dM -xc - | cat - >> $(@:st=hT)
1285 ifdef sed-remove-objpfx
1286 sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
1287 cat $(@:st=dt) >> $(@:st=d)
1289 cat $(@:st=dT) >> $(@:st=d)
1291 fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`; \
1292 filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`; \
1293 iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`; \
1294 fopen_max=$${fopen_max:-16}; \
1295 filename_max=$${filename_max:-1024}; \
1296 if [ -z $$iov_max ]; then \
1297 define_iov_max="# undef IOV_MAX"; \
1299 define_iov_max="# define IOV_MAX $$iov_max"; \
1301 sed -e "s/@FOPEN_MAX@/$$fopen_max/" \
1302 -e "s/@FILENAME_MAX@/$$filename_max/" \
1303 -e "s/@L_tmpnam@/$(L_tmpnam)/" \
1304 -e "s/@TMP_MAX@/$(TMP_MAX)/" \
1305 -e "s/@L_ctermid@/$(L_ctermid)/" \
1306 -e "s/@L_cuserid@/$(L_cuserid)/" \
1307 -e "s/@define_IOV_MAX@/$$define_iov_max/" \
1309 $(move-if-change) $(@:st=h.new) $(@:st=h)
1310 # Remove these last so that they can be examined if something went wrong.
1311 rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
1315 -include $(stdio_lim:h=d)
1317 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st
1320 TAGS: $(objpfx)distinfo $(..)MakeTAGS
1321 $(MAKE) $(addprefix -f ,$^) $@
1323 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
1324 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
1328 .PHONY: echo-headers
1333 # Common cleaning targets.
1335 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
1337 mostlyclean: common-mostlyclean
1340 -rm -f $(addprefix $(objpfx),$(addsuffix .out,$(tests) $(xtests) \
1342 $(addsuffix -bp.out,$(tests) $(xtests) \
1345 # Remove the object files.
1347 -rm -f $(addprefix $(objpfx),$(tests) $(xtests) $(test-srcs) \
1348 $(others) $(sysdep-others) stubs \
1349 $(addsuffix .o,$(tests) $(xtests) \
1350 $(test-srcs) $(others) \
1352 $(addsuffix -bp,$(tests) $(xtests) \
1354 $(addsuffix .out,$(tests) $(xtests) \
1356 $(addsuffix -bp.out,$(tests) $(xtests) \
1358 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
1360 $(install-lib.so:%.so=%_pic.a))
1362 -rm -f $(objpfx)rtld-*.os
1365 $(foreach o,$(object-suffixes-for-libc),
1366 -rm -f $(objpfx)stamp$o $(o-objects))
1369 # Also remove the dependencies and generated source files.
1370 common-clean: common-mostlyclean
1371 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
1372 -rm -f $(objpfx)rtld-*.d
1373 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
1374 -rm -f $(addprefix $(common-objpfx),$(common-generated))
1375 -rm -f $(objpfx)distinfo
1377 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
1378 # for each function which is a stub. We grovel over all the .d files
1379 # looking for references to <stub-tag.h>. Then we grovel over each
1380 # referenced source file to see what stub function it defines.
1383 .PHONY: stubs # The parent Makefile calls this target.
1384 stubs: $(objpfx)stubs
1386 $(objpfx)stubs: $(+depfiles)
1387 # Use /dev/null since `...` might expand to empty.
1388 (s=`cd $(sysdep_dir) && $(PWD_P)`; \
1389 $(patsubst %/,cd % &&,$(objpfx)) \
1390 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
1391 `sed -n -e 's@$(sysdep_dir)/@'"$$s"'/@g' \
1392 -e 's@\$$(common-objpfx)@$(..)@g' -e 's@\$$(objpfx)@@g' \
1393 -e '/: *[^ ]/{s@^.*: *\([^ ]*\) .*$$@\1@; h; }' \
1395 -e '/stub-tag\.h/{; g; p; }' \
1396 $(patsubst $(objpfx)%,%,$^) /dev/null` \
1400 # Make the distribution tar file.
1403 dist: $(objpfx)distinfo $(..)Make-dist
1404 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
1406 # Avoid depending on source files found in sysdeps dirs,
1407 # because the references affect implicit rule selection.
1408 dist: $(filter-out %.c %.S %.s,$(distribute))
1410 # We used to simply export all these variables, but that frequently made the
1411 # environment get too large. Instead, we write all the information into
1412 # a generated makefile fragment `distinfo', and then include it with -f in
1413 # the sub-make that makes the distribution (above).
1414 $(objpfx)distinfo: Makefile $(..)Makerules \
1415 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
1416 $(make-target-directory)
1419 .PHONY: subdir_distinfo
1420 subdir_distinfo: $(objpfx)distinfo
1422 define distinfo-vars
1424 echo > $@.new 'subdir := $(subdir)'
1425 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
1426 headers sysdep_headers distribute dont_distribute generated \
1427 others tests xtests test-srcs extra-libs versioned \
1428 $(extra-libs:%=%-routines) \
1429 $(addprefix install-,lib lib.so data bin bin-script sbin others),
1430 echo >> $@.new '$(subdir)-$(var) := $($(var))'
1431 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
1434 ifneq (,$(strip $(gpl2lgpl)))
1435 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
1436 # Snarf from the master source and frob the copying notice.
1437 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
1439 # So I don't edit them by mistake.
1442 ifeq ($(with-cvs),yes)
1443 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@