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@@@.*$$/#define \1 \2/p' > $(@:.h.d=.h)T
138 sed $(sed-remove-objpfx) $(sed-remove-dotdot) \
139 $(@:.h=.h.d)T > $(@:.h=.h.d)T2
141 mv -f $(@:.h=.h.d)T2 $(@:.h=.h.d)
142 mv -f $(@:.h.d=.h)T $(@:.h.d=.h)
143 vpath %.sym $(sysdirs)
144 before-compile += $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
147 # Make sure the subdirectory for object files gets created.
149 ifeq (,$(wildcard $(objpfx).))
150 before-compile += $(objpfx).
152 $(make-target-directory)
156 # Remove existing files from `before-compile'. Things are added there when
157 # they must exist for dependency generation to work right, but once they
158 # exist there is no further need for every single file to depend on them,
159 # and those gratuitous dependencies result in many gratuitous
161 before-compile := $(filter-out $(wildcard $(before-compile)),$(before-compile))
163 # Don't let any before-compile file be an intermediate and get removed.
169 # If a makefile needs to do something conditional on something that
170 # can only be figured out from headers, write a FOO.make.c input
171 # file that uses cpp contructs and contains @@@ LINE @@@ for each LINE
172 # to emit in the generated makefile, and use -include $(common-objpfx)FOO.make.
174 # We only generate these in the top-level makefile, to avoid any weirdness
175 # from subdir-specific makefile tweaks creeping in on an update.
176 $(common-objpfx)%.make: $(..)%.make.c $(..)Makerules $(before-compile)
178 (echo '# Generated from $*.make.c by Makerules.'; \
179 $(CC) $(CFLAGS) $(CPPFLAGS) -E $< \
180 -MD -MT '$$(common-objpfx)$*.make' -MF $@.dT \
181 | sed -n '/@@@/{s/@@@[ ]*\(.*\)@@@/\1/;s/[ ]*$$//p;}'; \
182 echo 'common-generated += $(@F)'; \
183 sed $(sed-remove-objpfx) $(sed-remove-dotdot) $@.dT; \
189 sed-remove-dotdot := -e 's@ *\.\.\/\([^ \]*\)@ $$(..)\1@g'
191 sed-remove-dotdot := -e 's@ *\([^ \/$$][^ \]*\)@ $$(..)\1@g'
194 # Generate an ordered list of implicit rules which find the source files in
195 # each sysdep directory. The old method was to use vpath to search all the
196 # sysdep directories. However, that had the problem that a .S file in a
197 # later directory would be chosen over a .c file in an earlier directory,
198 # which does not preserve the desired sysdeps ordering behavior.
200 # It matters that this set of rules, for compiling from sources in
201 # the current directory (the $srcdir/$subdir) come before the
202 # generated sysdep rules in included from sysd-rules below. When
203 # compiling in the source tree, generated sources go into the current
204 # directory, and those should be chosen before any sources in sysdeps.
205 define o-iterator-doit
206 $(objpfx)%$o: %.S $(before-compile); $$(compile-command.S)
208 object-suffixes-left := $(all-object-suffixes)
209 include $(o-iterator)
211 define o-iterator-doit
212 $(objpfx)%$o: %.s $(before-compile); $$(compile-command.s)
214 object-suffixes-left := $(all-object-suffixes)
215 include $(o-iterator)
217 define o-iterator-doit
218 $(objpfx)%$o: %.c $(before-compile); $$(compile-command.c)
220 object-suffixes-left := $(all-object-suffixes)
221 include $(o-iterator)
223 # Omit the objpfx rules when building in the source tree, because
224 # objpfx is empty and so these rules just override the ones above.
226 # Define first rules to find the source files in $(objpfx).
227 # Generated source files will end up there.
228 define o-iterator-doit
229 $(objpfx)%$o: $(objpfx)%.S $(before-compile); $$(compile-command.S)
231 object-suffixes-left := $(all-object-suffixes)
232 include $(o-iterator)
234 define o-iterator-doit
235 $(objpfx)%$o: $(objpfx)%.s $(before-compile); $$(compile-command.s)
237 object-suffixes-left := $(all-object-suffixes)
238 include $(o-iterator)
240 define o-iterator-doit
241 $(objpfx)%$o: $(objpfx)%.c $(before-compile); $$(compile-command.c)
243 object-suffixes-left := $(all-object-suffixes)
244 include $(o-iterator)
247 # System-dependent makefiles can put in `inhibit-sysdep-asm' wildcard
248 # patterns matching sysdep directories whose assembly source files should
250 ifdef inhibit-sysdep-asm
251 define open-check-inhibit-asm
252 case $$sysdir in $(subst $(empty) ,|,$(inhibit-sysdep-asm))) : ;; *)
254 close-check-inhibit-asm = ;; esac ;
257 -include $(+sysdir_pfx)sysd-rules
258 ifneq ($(sysd-rules-sysdirs),$(config-sysdirs))
259 # The value of $(+sysdep_dirs) the sysd-rules was computed for
260 # differs from the one we are using now. So force a rebuild of sysd-rules.
261 sysd-rules-force = FORCE
264 $(+sysdir_pfx)sysd-rules: $(+sysdir_pfx)config.make $(..)Makerules \
265 $(wildcard $(foreach dir,$(sysdirs),\
269 (echo 'sysd-rules-sysdirs := $(config-sysdirs)'; \
270 for dir in $(config-sysdirs:%='$$(..)%'); do \
271 for o in $(all-object-suffixes); do \
272 $(open-check-inhibit-asm) \
273 echo "\$$(objpfx)%$$o: $$dir/%.S \$$(before-compile); \
274 \$$(compile-command.S)"; \
275 echo "\$$(objpfx)%$$o: $$dir/%.s \$$(before-compile); \
276 \$$(compile-command.s)"; \
277 echo "\$$(objpfx)rtld-%$$o: $$dir/%.S \$$(before-compile); \
278 \$$(compile-command.S)"; \
279 echo "\$$(objpfx)rtld-%$$o: $$dir/%.s \$$(before-compile); \
280 \$$(compile-command.s)"; \
281 echo "\$$(objpfx)ptw-%$$o: $$dir/%.S \$$(before-compile); \
282 \$$(compile-command.S)"; \
283 echo "\$$(objpfx)ptw-%$$o: $$dir/%.s \$$(before-compile); \
284 \$$(compile-command.s)"; \
285 $(close-check-inhibit-asm) \
286 echo "\$$(objpfx)%$$o: $$dir/%.c \$$(before-compile); \
287 \$$(compile-command.c)"; \
288 echo "\$$(objpfx)rtld-%$$o: $$dir/%.c \$$(before-compile); \
289 \$$(compile-command.c)"; \
290 echo "\$$(objpfx)ptw-%$$o: $$dir/%.c \$$(before-compile); \
291 \$$(compile-command.c)"; \
293 echo "\$$(objpfx)m_%.S: $$dir/s_%.S; \$$(+make-include-of-dep)"; \
294 echo "\$$(objpfx)m_%.c: $$dir/s_%.c; \$$(+make-include-of-dep)"; \
296 echo 'sysd-rules-done = t') > $@T
299 ifndef sysd-rules-done
300 # Don't do deps until this exists, because it provides rules to make the deps.
304 # This is used by the m_%.[Sc] pattern rules in sysd-rules.
305 define +make-include-of-dep
306 echo '#include <$<>' > $@T
310 # Generate version maps, but wait until sysdep-subdirs is known
311 ifeq ($(sysd-sorted-done),t)
312 ifeq ($(versioning),yes)
313 -include $(common-objpfx)sysd-versions
314 $(addprefix $(common-objpfx),$(version-maps)): $(common-objpfx)sysd-versions
315 common-generated += $(version-maps)
316 postclean-generated += sysd-versions Versions.all abi-versions.h \
317 Versions.def.v.i Versions.def.v Versions.v.i Versions.v
319 ifndef avoid-generated
320 ifneq ($(sysd-versions-subdirs),$(all-subdirs) $(config-sysdirs))
321 sysd-versions-force = FORCE
324 # See %.v/%.v.i implicit rules in Makeconfig.
325 $(common-objpfx)Versions.def.v.i: $(..)Versions.def \
326 $(wildcard $(add-ons:%=$(..)%/Versions.def))
327 $(common-objpfx)Versions.all: $(..)scripts/firstversions.awk \
328 $(common-objpfx)soversions.i \
329 $(common-objpfx)Versions.def.v
330 { while read lib version setname; do \
331 test -z "$$setname" || echo "$$lib : $$setname"; \
332 done < $(word 2,$^); \
334 } | LC_ALL=C $(AWK) -f $< > $@T
336 # See %.v/%.v.i implicit rules in Makeconfig.
337 $(common-objpfx)Versions.v.i: $(wildcard $(all-subdirs:%=$(..)%/Versions)) \
338 $(wildcard $(sysdirs:%=%/Versions)) \
339 $(common-objpfx)abi-versions.h \
340 $(sysd-versions-force)
341 $(common-objpfx)sysd-versions: $(common-objpfx)Versions.all \
342 $(common-objpfx)Versions.v \
343 $(..)scripts/versions.awk
344 ( echo 'sysd-versions-subdirs = $(all-subdirs) $(config-sysdirs)' ; \
346 | LC_ALL=C $(AWK) -v buildroot=$(common-objpfx) -v defsfile=$< \
347 -v move_if_change='$(move-if-change)' \
351 endif # avoid-generated
352 endif # $(versioning) = yes
353 endif # sysd-sorted-done
355 # Generate .dT files as we compile.
356 compile-mkdep-flags = -MD -MP -MF $@.dt
357 compile-command.S = $(compile.S) $(OUTPUT_OPTION) $(compile-mkdep-flags)
358 compile-command.s = $(COMPILE.s) $< $(OUTPUT_OPTION) $(compile-mkdep-flags)
359 compile-command.c = $(compile.c) $(OUTPUT_OPTION) $(compile-mkdep-flags)
361 # GCC can grok options after the file name, and it looks nicer that way.
362 compile.c = $(CC) $< -c $(CFLAGS) $(CPPFLAGS)
363 compile.S = $(CC) $< -c $(CPPFLAGS) $(S-CPPFLAGS) \
364 $(ASFLAGS) $(ASFLAGS-$(suffix $@))
365 COMPILE.S = $(CC) -c $(CPPFLAGS) $(S-CPPFLAGS) \
366 $(ASFLAGS) $(ASFLAGS-$(suffix $@))
367 COMPILE.s = $(filter-out -pipe,$(CC)) -c $(ASFLAGS)
369 # We need this for the output to go in the right place. It will default to
370 # empty if make was configured to work with a cc that can't grok -c and -o
371 # together. You can't compile the C library with such a compiler.
372 OUTPUT_OPTION = -o $@
374 # We need the $(CFLAGS) to be in there to have the right predefines during
375 # the dependency run for C sources. But having it for assembly sources can
376 # get the wrong predefines.
377 S-CPPFLAGS = -DASSEMBLER $(asm-CPPFLAGS)
380 $(make-target-directory)
381 $(+mkdep) $< $(if $(filter %.c,$<),$(CFLAGS)) \
382 $(CPPFLAGS) $($(patsubst .%,%,$(suffix $(<F)))-CPPFLAGS) | sed \
383 -e 's,$(subst .,\.,$*)\.o,$(foreach o,$(all-object-suffixes),$(@:.d=$o)) $@,' \
384 $(sed-remove-objpfx) > $(@:.d=.T)
385 mv -f $(@:.d=.T) $@ $(generate-md5)
389 # Continuation lines here are dangerous because they introduce spaces!
390 define sed-remove-objpfx
391 -e 's@ $(subst .,\.,$(subst @,\@,$(common-objpfx)))@ $$(common-objpfx)@g' \
392 -e 's@^$(subst .,\.,$(subst @,\@,$(common-objpfx)))@$$(common-objpfx)@g'
396 # Modify the list of routines we build for different targets
398 ifeq (yesyes,$(build-shared)$(elf))
399 ifndef libc.so-version
400 # Undefine this because it can't work when we libc.so is unversioned.
401 static-only-routines =
405 # Bounded pointer thunks are only built for *.ob
406 elide-bp-thunks = $(addprefix $(bppfx),$(bp-thunks))
408 elide-routines.oS += $(filter-out $(static-only-routines),\
409 $(routines) $(aux) $(sysdep_routines)) \
411 elide-routines.os += $(static-only-routines) $(elide-bp-thunks)
413 # If we have versioned code we don't need the old versions in any of the
415 elide-routines.o += $(shared-only-routines) $(elide-bp-thunks)
416 elide-routines.op += $(shared-only-routines) $(elide-bp-thunks)
417 elide-routines.og += $(shared-only-routines) $(elide-bp-thunks)
418 elide-routines.ob += $(shared-only-routines)
420 # Shared library building.
422 ifeq (yes,$(build-shared))
424 # Reference map file only when versioning is selected and a map file name
426 ifeq ($(versioning),yes)
427 map-file = $(firstword $($(@F:.so=-map)) \
428 $(addprefix $(common-objpfx), \
429 $(filter $(@F:.so=.map),$(version-maps))))
430 load-map-file = $(map-file:%=-Wl,--version-script=%)
433 # Pattern rule to build a shared object from an archive of PIC objects.
434 # This must come after the installation rules so Make doesn't try to
435 # build shared libraries in place from the installed *_pic.a files.
436 # $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies
437 # on other shared objects.
438 lib%.so: lib%_pic.a $(+preinit) $(+postinit) $(+interp)
439 ifneq (,$(findstring aix,$(config-os)))
441 dump -g $< | sed '1,6d' | cut -f2 | sort | uniq) > $(<:a=exp)
446 define build-shlib-helper
447 $(LINK.o) -shared $(static-libgcc) -Wl,-O1 $(sysdep-LDFLAGS) \
448 $(if $($(@F)-no-z-defs)$(no-z-defs),,-Wl,-z,defs) $(config-LDFLAGS) \
449 $(extra-B-$(@F:lib%.so=%).so) -B$(csu-objpfx) \
450 $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
451 -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \
452 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
453 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
456 ifneq (,$(findstring aix,$(config-os)))
457 define build-shlib-helper
458 $(LINK.o) -Wl,-G,-bM:SRE,-bnoentry,-bE:$(<:a=exp) \
459 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(extra-B-$(@F:lib%.so=%).so) \
460 $(extra-B-$(@F:lib%.so=%).so) $(load-map-file) \
461 $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \
462 -L$(subst :, -L,$(rpath-link))
469 # binutils only position loadable notes into the first page for binaries,
470 # not for shared objects
471 $(common-objpfx)shlib.lds: $(common-objpfx)config.make $(..)Makerules
472 $(LINK.o) -shared -Wl,-O1 \
473 $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
474 -Wl,--verbose 2>&1 | \
476 -e '/^=========/,/^=========/!d;/^=========/d' \
477 -e 's/^.*\.hash[ ]*:.*$$/ .note.ABI-tag : { *(.note.ABI-tag) } &/' \
478 -e 's/^.*\*(\.dynbss).*$$/& \
479 PROVIDE(__start___libc_freeres_ptrs = .); \
480 *(__libc_freeres_ptrs) \
481 PROVIDE(__stop___libc_freeres_ptrs = .);/'
483 common-generated += shlib.lds
486 $(build-shlib-helper) -o $@ -T $(common-objpfx)shlib.lds \
487 $(csu-objpfx)abi-note.o $(build-shlib-objlist)
490 ifneq (,$(findstring aix,$(config-os)))
492 $(build-shlib-helper) \
494 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
495 $(no-whole-archive) $(LDLIBS-$(@F:lib%.so=%).so)
498 $(build-shlib-helper) \
499 $(build-shlib-objlist)
504 ifneq (,$(findstring aix,$(config-os)))
505 define build-module-helper
506 $(LINK.o) -Wl,-G -Wl,-bM:SRE -Wl,-bnoentry -Wl,-bexpall \
507 $(sysdep-LDFLAGS) $(config-LDFLAGS) \
509 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
510 -L$(subst :, -L,$(rpath-link)) -Wl,-L=$(rpath-link)
513 define build-module-helper
514 $(LINK.o) -shared $(static-libgcc) $(sysdep-LDFLAGS) $(config-LDFLAGS) \
515 -B$(csu-objpfx) $(load-map-file) \
516 $(LDFLAGS.so) $(LDFLAGS-$(@F:%.so=%).so) \
517 -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link)
521 # This macro is similar to build-shlib but it does not define a soname
522 # and it does not depend on the destination name to start with `lib'.
524 # binutils only position loadable notes into the first page for binaries,
525 # not for shared objects
527 $(build-module-helper) -o $@ -T $(common-objpfx)shlib.lds \
528 $(csu-objpfx)abi-note.o $(build-module-objlist)
531 ifneq (,$(findstring aix,$(config-os)))
533 $(build-module-helper) \
535 $(filter-out $(map-file) $(+preinit) $(+postinit),$^) \
536 $(no-whole-archive) $(LDLIBS-$(@F:%.so=%).so)
541 $(build-module-helper) \
543 $(build-module-objlist)
548 build-module-helper-objlist = \
549 $(patsubst %_pic.a,$(whole-archive) %_pic.a $(no-whole-archive),\
550 $(filter-out %.lds $(map-file) $(+preinit) $(+postinit),$^))
551 whole-archive := -Wl,--whole-archive
553 build-module-objlist = $(build-module-helper-objlist) $(LDLIBS-$(@F:%.so=%).so)
554 build-shlib-objlist = $(build-module-helper-objlist) \
555 $(LDLIBS-$(@F:lib%.so=%).so)
557 # Don't try to use -lc when making libc.so itself.
558 # Also omits crti.o and crtn.o, which we do not want
559 # since we define our own `.init' section specially.
560 LDFLAGS-c.so = -nostdlib -nostartfiles
561 # But we still want to link libc.so against $(gnulib).
562 LDLIBS-c.so += $(gnulib)
563 # Give libc.so an entry point and make it directly runnable itself.
564 LDFLAGS-c.so += -e __libc_main
565 # Force the backward compatibility EH functions to be linked.
566 LDFLAGS-c.so += -u __register_frame
567 # Pre-link the objects of libc_pic.a so that we can locally resolve
568 # COMMON symbols before we link against ld.so. This is because ld.so
569 # contains some of libc_pic.a already, which will prevent the COMMONs
570 # from being allocated in libc.so, which introduces evil dependencies
571 # between libc.so and ld.so, which can make it impossible to upgrade.
573 $(common-objpfx)libc_pic.os: $(common-objpfx)libc_pic.a
574 $(LINK.o) -nostdlib -nostartfiles -r -o $@ \
575 $(LDFLAGS-c_pic.os) -Wl,-d -Wl,--whole-archive $^
576 # Use our own special initializer and finalizer files for libc.so.
577 $(common-objpfx)libc.so: $(elfobjdir)/soinit.os \
578 $(common-objpfx)libc_pic.os \
579 $(elfobjdir)/sofini.os \
580 $(elfobjdir)/interp.os $(elfobjdir)/ld.so \
581 $(common-objpfx)shlib.lds
583 ifeq ($(versioning),yes)
584 $(common-objpfx)libc.so: $(common-objpfx)libc.map
586 common-generated += libc.so libc_pic.os
587 ifdef libc.so-version
588 $(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so
590 common-generated += libc.so$(libc.so-version)
594 ifneq (,$(findstring aix,$(config-os)))
595 $(common-objpfx)libc.so: $(common-objpfx)libc_pic.a
598 dump -g $^ | sed '1,6d' | cut -f2 | sort | uniq) > $(^:a=exp)
599 sed '/__mulh/d;/__mull/d;/__divss/d;/__divus/d;/__quoss/d;/__quous/d' \
600 /lib/syscalls.exp > $(common-objpfx)syscalls.exp
601 $(LINK.o) -G -bM:SRE -bnoentry -bE:$(^:a=exp) \
602 -bE:$(common-objpfx)syscalls.exp \
603 -bI:$(common-objpfx)syscalls.exp \
604 -L$(common-objpfx) -o $@ $^
605 # AIX runtime ld wants libc.so to be libc.a(shr.o) hardwired
606 cp $@ $(common-objpfx)shr.o
607 $(AR) $(ARFLAGS) $(common-objpfx)libc.a $(common-objpfx)shr.o
611 # Figure out the source filenames in this directory.
613 override sources := $(addsuffix .c,\
614 $(filter-out $(elided-routines),\
617 sysdep_routines := $(sysdep_routines)
619 headers := $(headers) $(sysdep_headers)
621 # This is the list of all object files, gotten by
622 # replacing every ".c" in `sources' with a ".o".
623 # We also add bounded-pointer thunks, which are later
624 # elided for all suffixes except for `.ob'.
625 override objects := $(addprefix $(objpfx),$(sources:.c=.o) \
626 $(patsubst %,$(bppfx)%.o,\
627 $(filter $(routines) $(sysdep_routines),$(bp-thunks))))
630 # The makefile may define $(extra-libs) with `libfoo libbar'
631 # to build libfoo.a et al from the modules listed in $(libfoo-routines).
633 # extra-lib.mk is included once for each extra lib to define rules
634 # to build it, and to add its objects to the various variables.
635 # During its evaluation, $(lib) is set to the name of the library.
636 extra-libs-left := $(extra-libs)
637 include $(patsubst %,$(..)extra-lib.mk,$(extra-libs))
640 +depfiles := $(sources:.c=.d) \
641 $(patsubst %.o,%.d,$(filter %.o,$(extra-objs:.os=.o))) \
642 $(addsuffix .d,$(tests) $(xtests) $(test-srcs))
643 ifeq ($(build-programs),yes)
644 +depfiles += $(addsuffix .d,$(others) $(sysdep-others))
646 +depfiles := $(addprefix $(objpfx),\
647 $(filter-out $(addsuffix .d,$(omit-deps)),\
649 all-dt-files := $(foreach o,$(object-suffixes-for-libc),$(+depfiles:.d=$o.dt))
650 +depfiles := $(patsubst %.dt,%.d,$(wildcard $(all-dt-files))) \
651 $(wildcard $(all-dt-files:.dt=.d))
653 # This is a funny rule in that it removes its input file.
655 @sed $(sed-remove-objpfx) $< > $(@:.d=.T) && \
656 mv -f $(@:.d=.T) $@ && \
659 # Avoid the .h.d files for any .sym files whose .h files don't exist yet.
660 # They will be generated when they're needed, and trying too early won't work.
661 +gen-as-const := $(gen-as-const-headers:%.sym=$(common-objpfx)%.h)
662 +depfiles += $(addsuffix .d,$(filter $(wildcard $(+gen-as-const)),\
667 -include $(+depfiles)
671 # Maximize efficiency by minimizing the number of rules.
672 .SUFFIXES: # Clear the suffix list. We don't use suffix rules.
673 # Don't define any builtin rules.
674 MAKEFLAGS := $(MAKEFLAGS)r
676 # Generic rule for making directories.
678 # mkdir isn't smart enough to strip a trailing /.
681 # Make sure that object files are not removed
682 # when they are intermediates between sources and library members.
683 .PRECIOUS: $(addprefix $(objpfx)%,$(all-object-suffixes))
685 # Make sure that the parent library archive is never removed.
686 .PRECIOUS: $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
688 # Use the verbose option of ar and tar when not running silently.
689 ifeq "$(findstring s,$(MAKEFLAGS))" "" # if not -s
695 ARFLAGS := r$(verbose)
696 CREATE_ARFLAGS := cru$(verbose)
698 # This makes all the object files in the parent library archive.
700 .PHONY: lib lib-noranlib
701 lib: lib-noranlib $(foreach l,$(libtypes),$(patsubst %,$(common-objpfx)$l,c))
702 lib-noranlib: libobjs
704 # For object-suffix $o, the list of objects with that suffix.
705 # Makefiles can define `elide-routines.so = foo' to leave foo.so out.
706 o-objects = $(patsubst %.o,%$o,$(filter-out $(patsubst %,$(objpfx)%.o,\
707 $(elide-routines$o)),\
709 $(addprefix $(objpfx),$(o-objects$o))
711 others: $(addprefix $(objpfx),$(install-lib))
715 # Create the stamp$o files to keep the parent makefile happy.
716 subdir_lib: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
717 $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o):
718 $(make-target-directory)
722 # Define explicit rules to update each $(objpfx)stamp.SUFFIX
723 # timestamp file; these rules (one explicit rule is generated for each
724 # object suffix) write a list of objects to update in the stamp file.
725 # The parent will then actually add them all to the archive in the
726 # archive rule, below.
727 define o-iterator-doit
728 $(objpfx)stamp$o: $(o-objects); $$(do-stamp)
731 echo '$(patsubst $(objpfx)%,$(addsuffix /,$(subdir))%,$^)' > $@T
734 object-suffixes-left := $(object-suffixes-for-libc)
735 include $(o-iterator)
739 # Now define explicit rules to build the library archives; these depend
740 # on the stamp files built above.
741 define o-iterator-doit
742 $(common-objpfx)$(patsubst %,$(libtype$o),c): \
743 $(subdirs-stamp-o) $(common-objpfx)stamp$o; $$(do-makelib)
746 cd $(common-objdir) && \
747 $(AR) $(CREATE_ARFLAGS) $(@F) `cat $(patsubst $(common-objpfx)%,%,$^)`
750 subdirs-stamps := $(foreach d,$(subdirs),$(common-objpfx)$d/stamp%)
751 subdirs-stamp-o = $(subst %,$o,$(subdirs-stamps))
753 $(subdirs-stamps): subdir_lib;
755 object-suffixes-left = $(object-suffixes-for-libc)
756 include $(o-iterator)
759 # This makes all the object files.
760 .PHONY: objects objs libobjs extra-objs
761 objects objs: libobjs extra-objs
762 libobjs: $(foreach o,$(object-suffixes-for-libc),$(objpfx)stamp$o)
763 extra-objs: $(addprefix $(objpfx),$(extra-objs))
765 # Canned sequence for building an extra library archive.
766 define build-extra-lib
767 $(patsubst %/,cd % &&,$(objpfx)) \
768 $(AR) $(CREATE_ARFLAGS) $(@:$(objpfx)%=%) \
769 $(patsubst $(objpfx)%,%,$^)
775 .PHONY: force-install
778 # $(install-lib) are installed from the object directory into $(libdir);
779 # files in $(install-lib) matching `lib%.a' are ranlib'd after installation
780 # unless they also appear in $(non-lib.a). $(install-data) are installed
781 # as they are into $(datadir). $(headers) are installed as they are in
782 # $(includedir). $(install-bin), $(install-bin-script) and $(install-sbin)
783 # are installed from the object directory into $(bindir), $(bindir) and
784 # $(sbindir), respectively. $(install-others) are absolute path names of
785 # files to install; rules to install them are defined elsewhere.
787 # The simple library name to install libc.a under.
788 # This could be defined by a sysdep Makefile.
794 $(make-target-directory)
795 $(INSTALL_DATA) $< $@
798 # Make the target directory if it doesn't exist, using the `mkinstalldirs'
799 # script that does `mkdir -p' even if `mkdir' doesn't support that flag.
800 define make-target-directory
801 $(addprefix $(..)./scripts/mkinstalldirs ,\
802 $(filter-out $(wildcard $(@D:%/=%)),$(@D:%/=%)))
805 # Any directory (parent or subdir) should install libc.a; this way
806 # "make install" in a subdir is guaranteed to install everything it changes.
807 installed-libcs := $(foreach o,$(filter-out .os,$(object-suffixes-for-libc)),\
808 $(inst_libdir)/$(patsubst %,$(libtype$o),\
809 $(libprefix)$(libc-name)))
810 install: $(installed-libcs)
811 $(installed-libcs): $(inst_libdir)/lib$(libprefix)%: lib $(+force)
812 $(make-target-directory)
813 $(INSTALL_DATA) $(common-objpfx)lib$(*:$(libc-name)%=c%) $@
814 # Running ranlib after installing makes the __.SYMDEF time stamp up to
815 # date, which avoids messages from some linkers.
818 define do-install-program
819 $(make-target-directory)
820 $(INSTALL_PROGRAM) $< $@.new
824 define do-install-script
825 $(make-target-directory)
826 $(INSTALL_SCRIPT) $< $@.new
830 install-lib.so := $(filter %.so,$(install-lib:%_pic.a=%.so))
831 install-lib := $(filter-out %.so %_pic.a,$(install-lib))
833 ifeq (yes,$(build-shared))
834 # Find which .so's have versions.
835 versioned := $(strip $(foreach so,$(install-lib.so),\
836 $(patsubst %,$(so),$($(so)-version))))
838 install-lib.so-versioned := $(filter $(versioned), $(install-lib.so))
839 install-lib.so-unversioned := $(filter-out $(versioned), $(install-lib.so))
841 # For versioned libraries, we install three files:
842 # $(inst_libdir)/libfoo.so -- for linking, symlink or ld script
843 # $(inst_slibdir)/libfoo.so.NN -- for loading by SONAME, symlink
844 # $(inst_slibdir)/libfoo-X.Y.Z.so -- the real shared object file
845 V := $(firstword $($(subdir)-version) $(version))
846 install-lib-nosubdir: $(install-lib.so-unversioned:%=$(inst_slibdir)/%) \
847 $(foreach L,$(install-lib.so-versioned),\
849 $(inst_slibdir)/$(L:.so=)-$V.so \
850 $(inst_slibdir)/$L$($L-version))
852 # Install all the unversioned shared libraries.
853 $(install-lib.so-unversioned:%=$(inst_slibdir)/%): $(inst_slibdir)/%.so: \
854 $(objpfx)%.so $(+force)
855 $(do-install-program)
857 ifneq ($(findstring -s,$(LN_S)),)
860 $(SHELL) $(..)scripts/rellns-sh $< $@.new
864 # If we have no symbolic links don't bother with rellns-sh.
872 ifeq (yes,$(build-shared))
873 ifeq (no,$(cross-compiling))
874 symbolic-link-prog := $(common-objpfx)elf/sln
875 symbolic-link-list := $(common-objpfx)elf/symlink.list
876 define make-shlib-link
877 echo $(<F) $@ >> $(symbolic-link-list)
879 else # cross-compiling
880 # We need a definition that can be used by elf/Makefile's install rules.
881 symbolic-link-prog = $(LN_S)
884 ifndef make-shlib-link
885 define make-shlib-link
891 ifdef libc.so-version
892 # For a library specified to be version N, install three files:
893 # libc.so -> libc.so.N (e.g. libc.so.6)
894 # libc.so.6 -> libc-VERSION.so (e.g. libc-1.10.so)
896 $(inst_slibdir)/libc.so$(libc.so-version): $(inst_slibdir)/libc-$(version).so \
899 $(inst_slibdir)/libc-$(version).so: $(common-objpfx)libc.so $(+force)
900 $(do-install-program)
901 install: $(inst_slibdir)/libc.so$(libc.so-version)
903 # This fragment of linker script gives the OUTPUT_FORMAT statement
904 # for the configuration we are building. We put this statement into
905 # the linker scripts we install for -lc et al so that they will not be
906 # used by a link for a different format on a multi-architecture system.
907 $(common-objpfx)format.lds: $(..)scripts/output-format.sed \
908 $(common-objpfx)config.make \
909 $(common-objpfx)config.h $(..)Makerules
910 $(LINK.o) -shared $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
911 -x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
912 | sed -n -f $< > $@.new
915 common-generated += format.lds
918 # What we install as libc.so for programs to link against is in fact a
919 # link script. It contains references for the various libraries we need.
920 # The libc.so object is not complete since some functions are only defined
921 # in libc_nonshared.a.
922 # We need to use absolute paths since otherwise local copies (if they exist)
923 # of the files are taken by the linker.
924 install: $(inst_libdir)/libc.so
925 $(inst_libdir)/libc.so: $(common-objpfx)format.lds \
926 $(common-objpfx)libc.so$(libc.so-version) \
927 $(inst_libdir)/$(patsubst %,$(libtype.oS),\
928 $(libprefix)$(libc-name)) \
930 (echo '/* GNU ld script';\
931 echo ' Use the shared library, but some functions are only in';\
932 echo ' the static library, so try that secondarily. */';\
934 echo 'GROUP ( $(slibdir)/libc.so$(libc.so-version)' \
935 '$(libdir)/$(patsubst %,$(libtype.oS),$(libprefix)$(libc-name))'\
943 install: $(inst_slibdir)/libc.so
944 $(inst_slibdir)/libc.so: $(common-objpfx)libc.so $(+force)
945 $(do-install-program)
948 ifneq (,$(versioned))
949 # Produce three sets of rules as above for all the smaller versioned libraries.
951 define o-iterator-doit
952 $(inst_libdir)/$o: $(inst_slibdir)/$o$($o-version) $(+force); $$(make-link)
954 object-suffixes-left := $(filter-out $(install-lib-ldscripts),$(versioned))
955 ifneq (,$(object-suffixes-left))
956 include $(o-iterator)
959 # Make symlinks in the build directory, because the versioned names might
960 # be referenced by a DT_NEEDED in another library.
961 define o-iterator-doit
962 $(objpfx)$o$($o-version): $(objpfx)$o; $$(make-link)
964 object-suffixes-left := $(versioned)
965 include $(o-iterator)
967 generated += $(foreach o,$(versioned),$o$($o-version))
969 ifeq (,$($(subdir)-version))
970 define o-iterator-doit
971 $(inst_slibdir)/$o$($o-version): $(inst_slibdir)/$(o:.so=)-$(version).so \
975 object-suffixes-left := $(versioned)
976 include $(o-iterator)
978 define o-iterator-doit
979 $(inst_slibdir)/$(o:.so=)-$(version).so: $(objpfx)$o $(+force);
980 $$(do-install-program)
982 object-suffixes-left := $(versioned)
983 include $(o-iterator)
985 define o-iterator-doit
986 $(inst_slibdir)/$o$($o-version): \
987 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so $(+force);
990 object-suffixes-left := $(versioned)
991 include $(o-iterator)
993 define o-iterator-doit
994 $(inst_slibdir)/$(o:.so=)-$($(subdir)-version).so: $(objpfx)$o $(+force);
995 $$(do-install-program)
997 object-suffixes-left := $(versioned)
998 include $(o-iterator)
1002 define do-install-so
1003 $(do-install-program)
1004 $(patsubst %,ln -s -f $(@F) $(@D)/$(patsubst %$*.so,%,$(<F))$(libprefix)$*.so,\
1005 $(filter-out %.so,$@))
1008 so-versions := $(sort $(foreach so,$(install-lib.so),.so$($(so)-version)))
1009 $(foreach v,$(so-versions),\
1010 $(inst_slibdir)/lib$(libprefix)%$v): $(common-objpfx)lib%.so \
1013 $(foreach v,$(so-versions),\
1014 $(inst_slibdir)/$(libprefix)%$v): $(common-objpfx)%.so $(+force)
1019 $(addprefix $(inst_bindir)/,$(install-bin)): \
1020 $(inst_bindir)/%: $(objpfx)% $(+force)
1021 $(do-install-program)
1023 ifdef install-bin-script
1024 $(addprefix $(inst_bindir)/,$(install-bin-script)): \
1025 $(inst_bindir)/%: $(objpfx)% $(+force)
1026 $(do-install-script)
1028 ifdef install-rootsbin
1029 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin)): \
1030 $(inst_rootsbindir)/%: $(objpfx)% $(+force)
1031 $(do-install-program)
1034 $(addprefix $(inst_sbindir)/,$(install-sbin)): \
1035 $(inst_sbindir)/%: $(objpfx)% $(+force)
1036 $(do-install-program)
1039 install-lib.a := $(filter lib%.a,$(install-lib))
1040 install-lib-non.a := $(filter-out lib%.a,$(install-lib))
1041 ifdef install-lib-non.a
1042 $(addprefix $(inst_libdir)/$(libprefix),$(install-lib-non.a)): \
1043 $(inst_libdir)/$(libprefix)%: $(objpfx)% $(+force)
1047 $(install-lib.a:lib%.a=$(inst_libdir)/lib$(libprefix)%.a): \
1048 $(inst_libdir)/lib$(libprefix)%.a: $(objpfx)lib%.a $(+force)
1050 $(patsubst %,$(RANLIB) $@,$(filter-out $(non-lib.a),$(<F)))
1054 $(addprefix $(inst_datadir)/,$(install-data)): $(inst_datadir)/%: % $(+force)
1057 headers := $(strip $(headers))
1059 $(addprefix $(inst_includedir)/,$(headers)): $(inst_includedir)/%: % $(+force)
1063 .PHONY: install-bin-nosubdir install-bin-script-nosubdir \
1064 install-rootsbin-nosubdir install-sbin-nosubdir install-lib-nosubdir \
1065 install-data-nosubdir install-headers-nosubdir
1066 install-bin-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin))
1067 install-bin-script-nosubdir: $(addprefix $(inst_bindir)/,$(install-bin-script))
1068 install-rootsbin-nosubdir: \
1069 $(addprefix $(inst_rootsbindir)/,$(install-rootsbin))
1070 install-sbin-nosubdir: $(addprefix $(inst_sbindir)/,$(install-sbin))
1071 install-lib-nosubdir: $(addprefix $(inst_libdir)/,\
1072 $(patsubst lib%.a,lib$(libprefix)%.a,$(install-lib.a)) \
1073 $(addprefix $(libprefix),$(install-lib-non.a)))
1074 install-data-nosubdir: $(addprefix $(inst_datadir)/,$(install-data))
1075 install-headers-nosubdir: $(addprefix $(inst_includedir)/,$(headers))
1076 install-others-nosubdir: $(install-others)
1078 # We need all the `-nosubdir' targets so that `install' in the parent
1079 # doesn't depend on several things which each iterate over the subdirs.
1080 # This rule makes `install-FOO' always use `install-FOO-nosubdir' as a
1081 # subroutine. Then in the parent `install-FOO' also causes subdir makes.
1082 install-%:: install-%-nosubdir ;
1084 .PHONY: install install-no-libc.a-nosubdir
1085 ifeq ($(build-programs),yes)
1086 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1087 install-bin-nosubdir install-bin-script-nosubdir \
1088 install-lib-nosubdir install-others-nosubdir \
1089 install-rootsbin-nosubdir install-sbin-nosubdir
1091 install-no-libc.a-nosubdir: install-headers-nosubdir install-data-nosubdir\
1092 install-lib-nosubdir install-others-nosubdir
1094 install: install-no-libc.a-nosubdir
1096 # Command to compile $< in $(objdir) using the native libraries.
1097 define native-compile
1098 $(make-target-directory)
1099 $(patsubst %/,cd % &&,$(objpfx)) \
1100 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1101 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(@F)
1104 # Command to compile $< in $(common-objdir) using the native libraries.
1105 # We must cd to $(objdir) anyway so that $(..)config.h is valid.
1106 define common-objdir-compile
1107 $(patsubst %/,cd % &&,$(objpfx)) \
1108 $(BUILD_CC) $($(basename $(<F))-CFLAGS) $(ALL_BUILD_CFLAGS) \
1109 $(firstword $(filter /%,$< $(shell pwd)/$<)) -o $(..)$(@F)
1112 # We always want to use configuration definitions.
1113 # Note that this is only used for commands running in $(objpfx).
1114 ALL_BUILD_CFLAGS = $(BUILD_CFLAGS) -include $(..)config.h
1116 # Support the GNU standard name for this target.
1119 # Special target to run tests which cannot be run unconditionally.
1120 # Maintainers should use this target.
1124 all-nonlib = $(strip $(tests) $(xtests) $(test-srcs) $(test-extras) $(others))
1125 ifneq (,$(all-nonlib))
1126 cpp-srcs-left = $(all-nonlib:=.c)
1128 include $(patsubst %,$(..)cppflags-iterator.mk,$(all-nonlib))
1131 # The include magic above causes those files to use this variable for flags.
1132 CPPFLAGS-nonlib = -DNOT_IN_libc=1
1135 ifeq ($(versioning),yes)
1136 # Generate normalized lists of symbols, versions, and data sizes.
1137 # This is handy for checking against existing library binaries.
1139 %.symlist: $(..)scripts/abilist.awk %.dynsym
1140 LC_ALL=C $(AWK) -f $^ > $@T
1144 $(OBJDUMP) --dynamic-syms $< > $@T
1147 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1148 $(..)abilist/%.abilist $(objpfx)%.symlist
1150 check-abi-%: $(..)scripts/extract-abilist.awk $(common-objpfx)config.make \
1151 $(..)abilist/%.abilist $(common-objpfx)%.symlist
1155 $(AWK) -f $< -v 'config=$(check-abi-config)' \
1156 $(filter %.abilist,$^) \
1157 | { diff -pu0 - $(filter %.symlist,$^) $(check-abi-warn) ; }
1159 ifeq ($(enable-check-abi),warn)
1160 check-abi-warn = || echo '*** WARNING: $*.so failed ABI check'
1163 ifeq ($(firstword $(sysd-sorted-done) f)$(firstword $(generating) f),tf)
1164 -include $(common-objpfx)tls.make
1166 ifeq ($(use-tls),yes)
1169 ifeq ($(use-thread),yes)
1170 config-tls := thread
1172 check-abi-config := \
1173 $(config-machine)-$(config-vendor)-$(config-os)/$(config-tls)
1176 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1179 update-abi-%: $(..)scripts/merge-abilist.awk $(..)abilist/%.abilist \
1180 $(common-objpfx)%.symlist
1182 ifndef update-abi-config
1184 @echo 'Run $(MAKE) $@ update-abi-config=REGEXP'; exit 2
1188 LC_ALL=C $(AWK) -v config='$(update-abi-config)' -f $^ \
1189 > $(..)abilist/$*.abilist.new
1190 @if cmp -s $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist 2> /dev/null; \
1191 then rm -f $(..)abilist/$*.abilist.new; \
1192 echo '+++ $(..)abilist/$*.abilist is unchanged'; \
1193 else mv -f $(..)abilist/$*.abilist.new $(..)abilist/$*.abilist; \
1194 echo '*** Now check $*.abilist changes for correctness ***'; \
1199 .PHONY: update-abi check-abi
1200 update-abi: $(patsubst %.so,update-abi-%,$(install-lib.so-versioned))
1201 check-abi: $(patsubst %.so,check-abi-%,$(install-lib.so-versioned))
1203 subdir_check-abi: check-abi
1204 subdir_update-abi: update-abi
1206 check-abi: subdir_check-abi
1207 update-abi: subdir_update-abi
1210 ifeq ($(subdir),elf)
1211 check-abi: check-abi-libc
1212 update-abi: update-abi-libc
1213 common-generated += libc.symlist
1216 ifeq ($(build-shared),yes)
1217 ifneq ($(enable-check-abi),no)
1226 # There's no good place to put this - here will do.
1227 # The dependencies are wrong if it's run from the top level.
1228 ifeq ($(filter %posix, $(sysdirs)),)
1239 stdio_lim = $(common-objpfx)bits/stdio_lim.h
1241 $(stdio_lim:lim.h=%.h) $(stdio_lim:lim.h=%.d): $(stdio_lim:lim.h=%.st); @:
1242 $(stdio_lim:h=st): $(..)stdio-common/stdio_lim.h.in $(..)Rules \
1243 $(common-objpfx)config.make
1244 $(make-target-directory)
1245 echo '#include "$(..)posix/bits/posix1_lim.h"' | \
1246 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1247 $(CC) $(+includes) -E -dM -xc - -o $(@:st=hT)
1248 echo '#include "$(..)misc/sys/uio.h"' | \
1249 SUNPRO_DEPENDENCIES='$(@:st=dT) $@' \
1250 $(CC) -D_LIBC=1 $(+includes) -E -dM -xc - | cat - >> $(@:st=hT)
1251 ifdef sed-remove-objpfx
1252 sed $(sed-remove-objpfx) $(@:st=dT) > $(@:st=dt)
1253 cat $(@:st=dt) >> $(@:st=d)
1255 cat $(@:st=dT) >> $(@:st=d)
1257 fopen_max=`sed -n 's/^#define OPEN_MAX //1p' $(@:st=hT)`; \
1258 filename_max=`sed -n 's/^#define PATH_MAX //1p' $(@:st=hT)`; \
1259 iov_max=`sed -n 's/^#define UIO_MAXIOV //p' $(@:st=hT)`; \
1260 fopen_max=$${fopen_max:-16}; \
1261 filename_max=$${filename_max:-1024}; \
1262 if [ -z $$iov_max ]; then \
1263 define_iov_max="# undef IOV_MAX"; \
1265 define_iov_max="# define IOV_MAX $$iov_max"; \
1267 sed -e "s/@FOPEN_MAX@/$$fopen_max/" \
1268 -e "s/@FILENAME_MAX@/$$filename_max/" \
1269 -e "s/@L_tmpnam@/$(L_tmpnam)/" \
1270 -e "s/@TMP_MAX@/$(TMP_MAX)/" \
1271 -e "s/@L_ctermid@/$(L_ctermid)/" \
1272 -e "s/@L_cuserid@/$(L_cuserid)/" \
1273 -e "s/@define_IOV_MAX@/$$define_iov_max/" \
1275 $(move-if-change) $(@:st=h.new) $(@:st=h)
1276 # Remove these last so that they can be examined if something went wrong.
1277 rm -f $(@:st=hT) $(@:st=dT) $(@:st=dt)
1281 -include $(stdio_lim:h=d)
1283 common-generated += bits/stdio_lim.h bits/stdio_lim.d bits/stdio_lim.st
1286 TAGS: $(objpfx)distinfo $(..)MakeTAGS
1287 $(MAKE) $(addprefix -f ,$^) $@
1289 $(..)po/%.pot: $(objpfx)distinfo $(..)MakeTAGS FORCE
1290 $(MAKE) $(addprefix -f ,$(filter-out FORCE,$^)) $@
1294 .PHONY: echo-headers
1299 # Common cleaning targets.
1301 .PHONY: common-mostlyclean common-clean mostlyclean clean do-tests-clean
1303 mostlyclean: common-mostlyclean
1306 -rm -f $(addprefix $(objpfx),$(addsuffix .out,$(tests) $(xtests) \
1308 $(addsuffix -bp.out,$(tests) $(xtests) \
1311 # Remove the object files.
1313 -rm -f $(addprefix $(objpfx),$(tests) $(xtests) $(test-srcs) \
1314 $(others) $(sysdep-others) stubs \
1315 $(addsuffix .o,$(tests) $(xtests) \
1316 $(test-srcs) $(others) \
1318 $(addsuffix -bp,$(tests) $(xtests) \
1320 $(addsuffix .out,$(tests) $(xtests) \
1322 $(addsuffix -bp.out,$(tests) $(xtests) \
1324 -rm -f $(addprefix $(objpfx),$(extra-objs) $(install-lib) \
1326 $(install-lib.so:%.so=%_pic.a))
1328 -rm -f $(objpfx)rtld-*.os
1331 $(foreach o,$(object-suffixes-for-libc),
1332 -rm -f $(objpfx)stamp$o $(o-objects))
1335 # Also remove the dependencies and generated source files.
1336 common-clean: common-mostlyclean
1337 -rm -f $(addprefix $(objpfx),$(generated))
1338 -rm -f $(objpfx)*.d $(objpfx)*.dt
1339 -rm -fr $(addprefix $(objpfx),$(generated-dirs))
1340 -rm -f $(addprefix $(common-objpfx),$(common-generated))
1341 -rm -f $(objpfx)distinfo
1343 # Produce a file `stubs' which contains `#define __stub_FUNCTION'
1344 # for each function which is a stub. We grovel over all the .d files
1345 # looking for references to <stub-tag.h>. Then we grovel over each
1346 # referenced source file to see what stub function it defines.
1349 .PHONY: stubs # The parent Makefile calls this target.
1350 stubs: $(objpfx)stubs
1352 $(objpfx)stubs: $(+depfiles)
1353 # Use /dev/null since `...` might expand to empty.
1354 (s=`cd $(sysdep_dir) && $(PWD_P)`; \
1355 $(patsubst %/,cd % &&,$(objpfx)) \
1356 sed -n 's/^stub_warning *(\([^)]*\).*$$/#define __stub_\1/p' \
1357 `sed -n -e 's@$(sysdep_dir)/@'"$$s"'/@g' \
1358 -e 's@\$$(common-objpfx)@$(..)@g' -e 's@\$$(objpfx)@@g' \
1359 -e '/: *[^ ]/{s@^.*: *\([^ ]*\) .*$$@\1@; h; }' \
1361 -e '/stub-tag\.h/{; g; p; }' \
1362 $(patsubst $(objpfx)%,%,$^) /dev/null` \
1366 # Make the distribution tar file.
1369 dist: $(objpfx)distinfo $(..)Make-dist
1370 $(MAKE) -f $< -f $(word 2,$^) $(Make-dist-args)
1372 # Avoid depending on source files found in sysdeps dirs,
1373 # because the references affect implicit rule selection.
1374 dist: $(filter-out %.c %.S %.s,$(distribute))
1376 # We used to simply export all these variables, but that frequently made the
1377 # environment get too large. Instead, we write all the information into
1378 # a generated makefile fragment `distinfo', and then include it with -f in
1379 # the sub-make that makes the distribution (above).
1380 $(objpfx)distinfo: Makefile $(..)Makerules \
1381 $(wildcard $(foreach dir,$(sysdirs),$(dir)/Makefile))
1382 $(make-target-directory)
1385 .PHONY: subdir_distinfo
1386 subdir_distinfo: $(objpfx)distinfo
1388 define distinfo-vars
1390 echo > $@.new 'subdir := $(subdir)'
1391 $(foreach var,subdir-dirs sources elided-routines sysdep_routines \
1392 headers sysdep_headers distribute dont_distribute generated \
1393 others tests xtests test-srcs extra-libs versioned \
1394 $(extra-libs:%=%-routines) \
1395 $(addprefix install-,lib lib.so data bin bin-script sbin others),
1396 echo >> $@.new '$(subdir)-$(var) := $($(var))'
1397 echo >> $@.new '$(var) = $$($(subdir)-$(var))')
1400 ifneq (,$(strip $(gpl2lgpl)))
1401 ifneq (,$(wildcard $(..)gpl2lgpl.sed))
1402 # Snarf from the master source and frob the copying notice.
1403 $(gpl2lgpl): %: $(..)gpl2lgpl.sed /home/gd/gnu/lib/%
1405 # So I don't edit them by mistake.
1408 ifeq ($(with-cvs),yes)
1409 test ! -d CVS || cvs $(CVSOPTS) commit -m'Updated from $^' $@