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
515 $(build-shlib-helper) \
516 -o $@.new $(csu-objpfx)abi-note.o -Wl,--verbose \
517 $(LDLIBS-$(@F:lib%.so=%).so) 2>&1 | \
518 sed -e '/^=========/,/^=========/!d;/^=========/d' \
519 -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
520 $(LDSEDCMD-$(@F:lib%.so=%).so) > $@.lds
522 $(build-shlib-helper) -o $@ -T $@.lds \
523 $(csu-objpfx)abi-note.o $(build-shlib-objlist)
527 ifneq (,$(findstring aix,$(config-os)))
529 $(build-shlib-helper) \
531 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
532 $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
535 $(build-shlib-helper) \
536 $(build-shlib-objlist)
541 ifneq (,$(findstring aix,$(config-os)))
542 define build-module-helper
543 $(LINK.o) -Wl,-G -Wl,-bM:SRE -Wl,-bnoentry -Wl,-bexpall \
544 $(sysdep-LDFLAGS) $(config-LDFLAGS) \
546 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
547 -L$(subst :, -L,$(rpath-link)) -Wl,-L=$(rpath-link)
550 define build-module-helper
551 $(LINK.o) -shared $(static-libgcc) $(sysdep-LDFLAGS) $(config-LDFLAGS) \
552 -B$(csu-objpfx) $(load-map-file) \
553 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
554 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
558 # This macro is similar to build-shlib but it does not define a soname
559 # and it does not depend on the destination name to start with `lib'.
561 # binutils only position loadable notes into the first page for binaries,
562 # not for shared objects
564 $(build-module-helper) \
565 -o $@.new $(csu-objpfx)abi-note.o -Wl,--verbose \
566 $(LDLIBS-$(@F:lib%.so=%).so) 2>&1 | \
567 sed -e '/^=========/,/^=========/!d;/^=========/d' \
568 -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
571 $(build-module-helper) -o $@ -T $@.lds \
572 $(csu-objpfx)abi-note.o $(build-module-objlist)
576 ifneq (,$(findstring aix,$(config-os)))
578 $(build-module-helper) \
580 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
581 $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
586 $(build-module-helper) \
588 $(build-module-objlist)
593 build-module-helper-objlist = \
594 $(patsubst %_pic.a,$(whole-archive) %_pic.a $(no-whole-archive),\
595 $(filter-out $(map-file) $(+preinit) $(+postinit),$^))
596 whole-archive := -Wl,--whole-archive
598 build-module-objlist = $(build-module-helper-objlist) $(LDLIBS-$(@F:%.so=%).so)
599 build-shlib-objlist = $(build-module-helper-objlist) \
600 $(LDLIBS-$(@F:lib%.so=%).so)
602 # Don't try to use -lc when making libc.so itself.
603 # Also omits crti.o and crtn.o, which we do not want
604 # since we define our own `.init' section specially.
605 LDFLAGS-c.so = -nostdlib -nostartfiles
606 # But we still want to link libc.so against $(gnulib).
607 LDLIBS-c.so += $(gnulib)
608 # Give libc.so an entry point and make it directly runnable itself.
609 LDFLAGS-c.so += -e __libc_main
610 # Force the backward compatibility EH functions to be linked.
611 LDFLAGS-c.so += -u __register_frame
612 # Pre-link the objects of libc_pic.a so that we can locally resolve
613 # COMMON symbols before we link against ld.so. This is because ld.so
614 # contains some of libc_pic.a already, which will prevent the COMMONs
615 # from being allocated in libc.so, which introduces evil dependencies
616 # between libc.so and ld.so, which can make it impossible to upgrade.
618 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
619 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
620 $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
621 LDSEDCMD-c.so = -e 's/^.*\*(\.dynbss).*$$/& __start___libc_freeres_ptrs = .; *(__libc_freeres_ptrs) __stop___libc_freeres_ptrs = .;/'
622 # Use our own special initializer and finalizer files for libc.so.
623 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
624 $(common-objpfx)libc_pic.os \
625 $(elfobjdir)/sofini.os \
626 $(elfobjdir)/interp.os $(elfobjdir)/ld.so
628 ifeq ($(versioning),yes)
629 $(common-objpfx)libc.so: $(common-objpfx)libc.map
631 common-generated += libc.so libc_pic.os
632 ifdef libc.so-version
633 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
635 common-generated += libc.so$(libc.so-version)
639 ifneq (,$(findstring aix,$(config-os)))
640 $(common-objpfx)libc.so: $(common-objpfx)libc_pic.a
643 dump -g $^ | sed '1,6d' | cut -f2 | sort | uniq) > $(^:a=exp)
644 sed '/__mulh/d;/__mull/d;/__divss/d;/__divus/d;/__quoss/d;/__quous/d' \
645 /lib/syscalls.exp > $(common-objpfx)syscalls.exp
646 $(LINK.o) -G -bM:SRE -bnoentry -bE:$(^:a=exp) \
647 -bE:$(common-objpfx)syscalls.exp \
648 -bI:$(common-objpfx)syscalls.exp \
649 -L$(common-objpfx) -o $@ $^
650 # AIX runtime ld wants libc.so to be libc.a(shr.o) hardwired
651 cp $@ $(common-objpfx)shr.o
652 $(AR) $(ARFLAGS) $(common-objpfx)libc.a $(common-objpfx)shr.o
656 # Figure out the source filenames in this directory.
658 override sources := $(addsuffix .c,\
659 $(filter-out $(elided-routines),\
662 sysdep_routines := $(sysdep_routines)
664 headers := $(headers) $(sysdep_headers)
666 # This is the list of all object files, gotten by
667 # replacing every ".c" in `sources' with a ".o".
668 # We also add bounded-pointer thunks, which are later
669 # elided for all suffixes except for `.ob'.
670 override objects := $(addprefix $(objpfx),$(sources:.c=.o) \
671 $(patsubst %,$(bppfx)%.o,\
672 $(filter $(routines) $(sysdep_routines),$(bp-thunks))))
675 # The makefile may define $(extra-libs) with `libfoo libbar'
676 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
678 # extra-lib.mk is included once for each extra lib to define rules
679 # to build it, and to add its objects to the various variables.
680 # During its evaluation, $(lib) is set to the name of the library.
681 extra-libs-left := $(extra-libs)
682 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
685 +depfiles := $(sources:.c=.d) \
686 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
687 $(addsuffix .d,$(tests) $(xtests) $(test-srcs))
688 ifeq ($(build-programs),yes)
689 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
691 +depfiles := $(addprefix $(objpfx),\
692 $(filter-out $(addsuffix .d,$(omit-deps)),\
695 # Avoid the .h.d files for any .sym files whose .h files don't exist yet.
696 # They will be generated when they're needed, and trying too early won't work.
697 +gen-as-const := $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
698 +depfiles += $(addsuffix .d,$(filter $(wildcard $(+gen-as-const)),\
703 -include $(+depfiles)
707 # Maximize efficiency by minimizing the number of rules.
708 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
709 # Don't define any builtin rules.
710 MAKEFLAGS := $(MAKEFLAGS)r
712 # Generic rule for making directories.
714 # mkdir isn't smart enough to strip a trailing /.
717 # Make sure that object files are not removed
718 # when they are intermediates between sources and library members.
719 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
721 # Make sure that the parent library archive is never removed.
722 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
724 # Use the verbose option of ar and tar when not running silently.
725 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
731 ARFLAGS := r$(verbose)
732 CREATE_ARFLAGS := cru$(verbose)
734 # This makes all the object files in the parent library archive.
736 .PHONY: lib lib-noranlib
737 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
738 lib-noranlib: libobjs
740 # For object-suffix $o, the list of objects with that suffix.
741 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
742 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
743 $(elide-routines$o)),\
745 $(addprefix $(objpfx),$(o-objects$o))
747 others: $(addprefix $(objpfx),$(install-lib))
751 # Create the stamp$o files to keep the parent makefile happy.
752 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
753 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
754 $(make-target-directory)
758 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
759 # timestamp file; these rules (one explicit rule is generated for each
760 # object suffix) write a list of objects to update in the stamp file.
761 # The parent will then actually add them all to the archive in the
762 # archive rule, below.
763 define o-iterator-doit
764 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
767 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
770 object-suffixes-left := $(object-suffixes-for-libc)
771 include $(o-iterator)
775 # Now define explicit rules to build the library archives; these depend
776 # on the stamp files built above.
777 define o-iterator-doit
778 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
779 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
782 cd $(common-objdir) && \
783 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
786 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
787 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
789 $(subdirs-stamps): subdir_lib;
791 object-suffixes-left = $(object-suffixes-for-libc)
792 include $(o-iterator)
795 # This makes all the object files.
796 .PHONY: objects objs libobjs extra-objs
797 objects objs: libobjs extra-objs
798 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
799 extra-objs: $(addprefix $(objpfx),$(extra-objs))
801 # Canned sequence for building an extra library archive.
802 define build-extra-lib
803 $(patsubst %/,cd % &&,$(objpfx)) \
804 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
805 $(patsubst $(objpfx)%,%,$^)
811 .PHONY: force-install
814 # $(install-lib) are installed from the object directory into $(libdir);
815 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
816 # unless they also appear in $(non-lib.a). $(install-data) are installed
817 # as they are into $(datadir). $(headers) are installed as they are in
818 # $(includedir). $(install-bin), $(install-bin-script) and $(install-sbin)
819 # are installed from the object directory into $(bindir), $(bindir) and
820 # $(sbindir), respectively. $(install-others) are absolute path names of
821 # files to install; rules to install them are defined elsewhere.
823 # The simple library name to install libc.a under.
824 # This could be defined by a sysdep Makefile.
830 $(make-target-directory)
831 $(INSTALL_DATA) $< $@
834 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
835 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
836 define make-target-directory
837 $(addprefix $(..)./scripts/mkinstalldirs ,\
838 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
841 # Any directory (parent or subdir) should install libc.a; this way
842 # "make install" in a subdir is guaranteed to install everything it changes.
843 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
844 $(inst_libdir)/$(patsubst %,$(libtype$o),\
845 $(libprefix)$(libc-name)))
846 install: $(installed-libcs)
847 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
848 $(make-target-directory)
849 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
850 # Running ranlib after installing makes the __.SYMDEF time stamp up to
851 # date, which avoids messages from some linkers.
854 define do-install-program
855 $(make-target-directory)
856 $(INSTALL_PROGRAM) $< $@.new
860 define do-install-script
861 $(make-target-directory)
862 $(INSTALL_SCRIPT) $< $@.new
866 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
867 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
869 ifeq (yes,$(build-shared))
870 # Find which .so's have versions.
871 versioned := $(strip $(foreach so,$(install-lib.so),\
872 $(patsubst %,$(so),$($(so)-version))))
874 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
875 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
877 # For versioned libraries, we install three files:
878 # $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
879 # $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
880 # $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
881 V := $(firstword $($(subdir)-version) $(version))
882 install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
883 $(foreach L,$(install-lib.so-versioned),\
885 $(inst_slibdir)/$(L:.so=)-$V.so \
886 $(inst_slibdir)/$L$($L-version))
888 # Install all the unversioned shared libraries.
889 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
890 $(objpfx)%.so $(+force)
891 $(do-install-program)
893 ifneq ($(findstring -s,$(LN_S)),)
896 $(SHELL) $(..)scripts/rellns-sh $< $@.new
900 # If we have no symbolic links don't bother with rellns-sh.
908 ifeq (yes,$(build-shared))
909 ifeq (no,$(cross-compiling))
910 symbolic-link-prog := $(common-objpfx)elf/sln
911 symbolic-link-list := $(common-objpfx)elf/symlink.list
912 define make-shlib-link
913 echo $(<F) $@ >> $(symbolic-link-list)
915 else # cross-compiling
916 # We need a definition that can be used by elf/Makefile's install rules.
917 symbolic-link-prog = $(LN_S)
920 ifndef make-shlib-link
921 define make-shlib-link
927 ifdef libc.so-version
928 # For a library specified to be version N, install three files:
929 # libc.so -> libc.so.N (e.g. libc.so.6)
930 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
932 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
935 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
936 $(do-install-program)
937 install: $(inst_slibdir)/libc.so$(libc.so-version)
939 # This fragment of linker script gives the OUTPUT_FORMAT statement
940 # for the configuration we are building. We put this statement into
941 # the linker scripts we install for -lc et al so that they will not be
942 # used by a link for a different format on a multi-architecture system.
943 $(common-objpfx)format.lds: $(..)scripts/output-format.sed \
944 $(common-objpfx)config.make \
945 $(common-objpfx)config.h $(..)Makerules
946 $(LINK.o) -shared $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
947 -x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
948 | sed -n -f $< > $@.new
951 common-generated += format.lds
954 # What we install as libc.so for programs to link against is in fact a
955 # link script. It contains references for the various libraries we need.
956 # The libc.so object is not complete since some functions are only defined
957 # in libc_nonshared.a.
958 # We need to use absolute paths since otherwise local copies (if they exist)
959 # of the files are taken by the linker.
960 install: $(inst_libdir)/libc.so
961 $(inst_libdir)/libc.so: $(common-objpfx)format.lds \
962 $(common-objpfx)libc.so$(libc.so-version) \
963 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
964 $(libprefix)$(libc-name)) \
966 (echo '/* GNU ld script';\
967 echo ' Use the shared library, but some functions are only in';\
968 echo ' the static library, so try that secondarily. */';\
970 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
971 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
979 install: $(inst_slibdir)/libc.so
980 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
981 $(do-install-program)
984 ifneq (,$(versioned))
985 # Produce three sets of rules as above for all the smaller versioned libraries.
987 define o-iterator-doit
988 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
990 object-suffixes-left := $(filter-out $(install-lib-ldscripts),$(versioned))
991 ifneq (,$(object-suffixes-left))
992 include $(o-iterator)
995 # Make symlinks in the build directory, because the versioned names might
996 # be referenced by a DT_NEEDED in another library.
997 define o-iterator-doit
998 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
1000 object-suffixes-left := $(versioned)
1001 include $(o-iterator)
1003 generated += $(foreach o,$(versioned),$o$($o-version))
1005 ifeq (,$($(subdir)-version))
1006 define o-iterator-doit
1007 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
1011 object-suffixes-left := $(versioned)
1012 include $(o-iterator)
1014 define o-iterator-doit
1015 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
1016 $$(do-install-program)
1018 object-suffixes-left := $(versioned)
1019 include $(o-iterator)
1021 define o-iterator-doit
1022 $(inst_slibdir)/$o$($o-version): \
1023 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
1026 object-suffixes-left := $(versioned)
1027 include $(o-iterator)
1029 define o-iterator-doit
1030 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
1031 $$(do-install-program)
1033 object-suffixes-left := $(versioned)
1034 include $(o-iterator)
1038 define do-install-so
1039 $(do-install-program)
1040 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
1041 $(filter-out %.so,$@))
1044 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
1045 $(foreach v,$(so-versions),\
1046 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
1049 $(foreach v,$(so-versions),\
1050 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
1055 $(addprefix $(inst_bindir)/,$(install-bin)): \
1056 $(inst_bindir)/%: $(objpfx)% $(+force)
1057 $(do-install-program)
1059 ifdef install-bin-script
1060 $(addprefix $(inst_bindir)/,$(install-bin-script)): \
1061 $(inst_bindir)/%: $(objpfx)% $(+force)
1062 $(do-install-script)
1064 ifdef install-rootsbin
1065 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
1066 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
1067 $(do-install-program)
1070 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
1071 $(inst_sbindir)/%: $(objpfx)% $(+force)
1072 $(do-install-program)
1075 install-lib.a := $(filter lib%.a,$(install-lib))
1076 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
1077 ifdef install-lib-non.a
1078 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
1079 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
1083 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
1084 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
1086 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
1090 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
1093 headers := $(strip $(headers))
1095 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
1099 .PHONY: install-bin-nosubdir install-bin-script-nosubdir \
1100 install-rootsbin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
1101 install-data-nosubdir install-headers-nosubdir
1102 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
1103 install-bin-script-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin-script))
1104 install-rootsbin-nosubdir: \
1105 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
1106 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
1107 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
1108 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
1109 $(addprefix $(libprefix),$(install-lib-non.a)))
1110 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
1111 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
1112 install-others-nosubdir: $(install-others)
1114 # We need all the `-nosubdir' targets so that `install' in the parent
1115 # doesn't depend on several things which each iterate over the subdirs.
1116 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
1117 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
1118 install-%:: install-%-nosubdir ;
1120 .PHONY: install install-no-libc.a-nosubdir
1121 ifeq ($(build-programs),yes)
1122 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1123 install-bin-nosubdir install-bin-script-nosubdir \
1124 install-lib-nosubdir install-others-nosubdir \
1125 install-rootsbin-nosubdir install-sbin-nosubdir
1127 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1128 install-lib-nosubdir install-others-nosubdir
1130 install: install-no-libc.a-nosubdir
1132 # Command to compile $< in $(objdir) using the native libraries.
1133 define native-compile
1134 $(make-target-directory)
1135 $(patsubst %/,cd % &&,$(objpfx)) \
1136 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1137 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
1140 # Command to compile $< in $(common-objdir) using the native libraries.
1141 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
1142 define common-objdir-compile
1143 $(patsubst %/,cd % &&,$(objpfx)) \
1144 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1145 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
1148 # We always want to use configuration definitions.
1149 # Note that this is only used for commands running in $(objpfx).
1150 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
1152 # Support the GNU standard name for this target.
1155 # Special target to run tests which cannot be run unconditionally.
1156 # Maintainers should use this target.
1160 all-nonlib = $(strip $(tests) $(xtests) $(test-srcs) $(test-extras) $(others))
1161 ifneq (,$(all-nonlib))
1162 cpp-srcs-left = $(all-nonlib:=.c)
1164 include $(patsubst %,$(..)cppflags-iterator.mk,$(all-nonlib))
1167 # The include magic above causes those files to use this variable for flags.
1168 CPPFLAGS-nonlib = -DNOT_IN_libc=1
1171 ifeq ($(versioning),yes)
1172 # Generate normalized lists of symbols, versions, and data sizes.
1173 # This is handy for checking against existing library binaries.
1175 %.symlist: $(..)scripts/abilist.awk %.dynsym
1176 LC_ALL=C $(AWK) -f $^ > $@T
1180 $(OBJDUMP) --dynamic-syms $< > $@T
1183 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1184 $(..)abilist/%.abilist $(objpfx)%.symlist
1186 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1187 $(..)abilist/%.abilist $(common-objpfx)%.symlist
1191 $(AWK) -f $< -v 'config=$(check-abi-config)' \
1192 $(filter %.abilist,$^) \
1193 | { diff -pu0 - $(filter %.symlist,$^) $(check-abi-warn) ; }
1195 ifeq ($(enable-check-abi),warn)
1196 check-abi-warn = || echo '*** WARNING: $*.so failed ABI check'
1199 ifeq ($(firstword $(sysd-sorted-done) f)$(firstword $(generating) f),tf)
1200 -include $(common-objpfx)tls.make
1202 ifeq ($(use-tls),yes)
1205 ifeq ($(use-thread),yes)
1206 config-tls := thread
1208 check-abi-config := \
1209 $(config-machine)-$(config-vendor)-$(config-os)/$(config-tls)
1212 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1215 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1216 $(common-objpfx)%.symlist
1218 ifndef update-abi-config
1220 @echo 'Run $(MAKE) $@ update-abi-config=REGEXP'; exit 2
1224 LC_ALL=C $(AWK) -v config='$(update-abi-config)' -f $^ \
1225 > $(..)abilist/$*.abilist.new
1226 @if cmp -s $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist 2> /dev/null; \
1227 then rm -f $(..)abilist/$*.abilist.new; \
1228 echo '+++ $(..)abilist/$*.abilist is unchanged'; \
1229 else mv -f $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist; \
1230 echo '*** Now check $*.abilist changes for correctness ***'; \
1235 .PHONY: update-abi check-abi
1236 update-abi: $(patsubst %.so,update-abi-%,$(install-lib.so-versioned))
1237 check-abi: $(patsubst %.so,check-abi-%,$(install-lib.so-versioned))
1239 subdir_check-abi: check-abi
1240 subdir_update-abi: update-abi
1242 check-abi: subdir_check-abi
1243 update-abi: subdir_update-abi
1246 ifeq ($(subdir),elf)
1247 check-abi: check-abi-libc
1248 update-abi: update-abi-libc
1249 common-generated += libc.symlist
1252 ifeq ($(build-shared),yes)
1253 ifneq ($(enable-check-abi),no)
1262 # There's no good place to put this - here will do.
1263 # The dependencies are wrong if it's run from the top level.
1264 ifeq ($(filter %posix, $(sysdirs)),)
1275 stdio_lim = $(common-objpfx)bits/stdio_lim.h
1277 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
1278 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
1279 $(common-objpfx)config.make
1280 $(make-target-directory)
1281 echo '#include "$(..)posix/bits/posix1_lim.h"' | \
1282 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1283 $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
1284 echo '#include "$(..)misc/sys/uio.h"' | \
1285 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1286 $(CC) -D_LIBC=1 $(+includes) -E -dM -xc - | cat - >> $(@:st=hT)
1287 ifdef sed-remove-objpfx
1288 sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
1289 cat $(@:st=dt) >> $(@:st=d)
1291 cat $(@:st=dT) >> $(@:st=d)
1293 fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`; \
1294 filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`; \
1295 iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`; \
1296 fopen_max=$${fopen_max:-16}; \
1297 filename_max=$${filename_max:-1024}; \
1298 if [ -z $$iov_max ]; then \
1299 define_iov_max="# undef IOV_MAX"; \
1301 define_iov_max="# define IOV_MAX $$iov_max"; \
1303 sed -e "s/@FOPEN_MAX@/$$fopen_max/" \
1304 -e "s/@FILENAME_MAX@/$$filename_max/" \
1305 -e "s/@L_tmpnam@/$(L_tmpnam)/" \
1306 -e "s/@TMP_MAX@/$(TMP_MAX)/" \
1307 -e "s/@L_ctermid@/$(L_ctermid)/" \
1308 -e "s/@L_cuserid@/$(L_cuserid)/" \
1309 -e "s/@define_IOV_MAX@/$$define_iov_max/" \
1311 $(move-if-change) $(@:st=h.new) $(@:st=h)
1312 # Remove these last so that they can be examined if something went wrong.
1313 rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
1317 -include $(stdio_lim:h=d)
1319 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st
1322 TAGS: $(objpfx)distinfo $(..)MakeTAGS
1323 $(MAKE) $(addprefix -f ,$^) $@
1325 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
1326 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
1330 .PHONY: echo-headers
1335 # Common cleaning targets.
1337 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
1339 mostlyclean: common-mostlyclean
1342 -rm -f $(addprefix $(objpfx),$(addsuffix .out,$(tests) $(xtests) \
1344 $(addsuffix -bp.out,$(tests) $(xtests) \
1347 # Remove the object files.
1349 -rm -f $(addprefix $(objpfx),$(tests) $(xtests) $(test-srcs) \
1350 $(others) $(sysdep-others) stubs \
1351 $(addsuffix .o,$(tests) $(xtests) \
1352 $(test-srcs) $(others) \
1354 $(addsuffix -bp,$(tests) $(xtests) \
1356 $(addsuffix .out,$(tests) $(xtests) \
1358 $(addsuffix -bp.out,$(tests) $(xtests) \
1360 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
1362 $(install-lib.so:%.so=%_pic.a))
1364 -rm -f $(objpfx)rtld-*.os
1367 $(foreach o,$(object-suffixes-for-libc),
1368 -rm -f $(objpfx)stamp$o $(o-objects))
1371 # Also remove the dependencies and generated source files.
1372 common-clean: common-mostlyclean
1373 -rm -f $(addprefix $(objpfx),$(generated)) $(+depfiles)
1374 -rm -f $(objpfx)rtld-*.d
1375 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
1376 -rm -f $(addprefix $(common-objpfx),$(common-generated))
1377 -rm -f $(objpfx)distinfo
1379 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
1380 # for each function which is a stub. We grovel over all the .d files
1381 # looking for references to <stub-tag.h>. Then we grovel over each
1382 # referenced source file to see what stub function it defines.
1385 .PHONY: stubs # The parent Makefile calls this target.
1386 stubs: $(objpfx)stubs
1388 $(objpfx)stubs: $(+depfiles)
1389 # Use /dev/null since `...` might expand to empty.
1390 (s=`cd $(sysdep_dir) && $(PWD_P)`; \
1391 $(patsubst %/,cd % &&,$(objpfx)) \
1392 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
1393 `sed -n -e 's@$(sysdep_dir)/@'"$$s"'/@g' \
1394 -e 's@\$$(common-objpfx)@$(..)@g' -e 's@\$$(objpfx)@@g' \
1395 -e '/: *[^ ]/{s@^.*: *\([^ ]*\) .*$$@\1@; h; }' \
1397 -e '/stub-tag\.h/{; g; p; }' \
1398 $(patsubst $(objpfx)%,%,$^) /dev/null` \
1402 # Make the distribution tar file.
1405 dist: $(objpfx)distinfo $(..)Make-dist
1406 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
1408 # Avoid depending on source files found in sysdeps dirs,
1409 # because the references affect implicit rule selection.
1410 dist: $(filter-out %.c %.S %.s,$(distribute))
1412 # We used to simply export all these variables, but that frequently made the
1413 # environment get too large. Instead, we write all the information into
1414 # a generated makefile fragment `distinfo', and then include it with -f in
1415 # the sub-make that makes the distribution (above).
1416 $(objpfx)distinfo: Makefile $(..)Makerules \
1417 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
1418 $(make-target-directory)
1421 .PHONY: subdir_distinfo
1422 subdir_distinfo: $(objpfx)distinfo
1424 define distinfo-vars
1426 echo > $@.new 'subdir := $(subdir)'
1427 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
1428 headers sysdep_headers distribute dont_distribute generated \
1429 others tests xtests test-srcs extra-libs versioned \
1430 $(extra-libs:%=%-routines) \
1431 $(addprefix install-,lib lib.so data bin bin-script sbin others),
1432 echo >> $@.new '$(subdir)-$(var) := $($(var))'
1433 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
1436 ifneq (,$(strip $(gpl2lgpl)))
1437 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
1438 # Snarf from the master source and frob the copying notice.
1439 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
1441 # So I don't edit them by mistake.
1444 ifeq ($(with-cvs),yes)
1445 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@