1 # Copyright (C) 1991-2018 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, see
16 # <http://www.gnu.org/licenses/>.
19 # Master Makefile for the GNU C library
22 This makefile requires GNU Make.
28 # This is the default target; it makes everything except the tests.
32 ifneq ($(AUTOCONF),no)
36 $(AUTOCONF) $(ACFLAGS) $< > $@.new
37 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
41 configure: configure.ac aclocal.m4; $(autoconf-it)
42 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
43 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
45 endif # $(AUTOCONF) = no
48 # We don't want to run anything here in parallel.
51 # These are the targets that are made by making them in each subdirectory.
52 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean \
53 subdir_clean subdir_distclean subdir_realclean \
55 subdir_update-abi subdir_check-abi \
56 subdir_update-all-abi \
59 subdir_objs subdir_stubs subdir_testclean \
60 $(addprefix install-, no-libc.a bin lib data headers others)
62 headers := limits.h values.h features.h gnu-versions.h \
63 bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
64 bits/libc-header-start.h
66 echo-headers: subdir_echo-headers
68 # The headers are in the include directory.
70 vpath %.h $(subdir-dirs)
73 install-others = $(inst_includedir)/gnu/stubs.h
76 ifeq (yes,$(build-shared))
77 headers += gnu/lib-names.h
82 ifeq ($(build-programs),yes)
83 others: $(addprefix $(objpfx),$(install-bin-script))
86 # Install from subdirectories too.
87 install: subdir_install
89 # Explicit dependency so that `make install-headers' works
90 install-headers: install-headers-nosubdir
92 # Make sure that the dynamic linker is installed before libc.
93 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
95 .PHONY: elf/ldso_install
97 $(MAKE) -C $(@D) $(@F)
99 # Create links for shared libraries using the `ldconfig' program if possible.
100 # Ignore the error if we cannot update /etc/ld.so.cache.
101 ifeq (no,$(cross-compiling))
102 ifeq (yes,$(build-shared))
103 install: install-symbolic-link
104 .PHONY: install-symbolic-link
105 install-symbolic-link: subdir_install
106 $(symbolic-link-prog) $(symbolic-link-list)
107 rm -f $(symbolic-link-list)
110 -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
111 $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
114 ifeq (/usr,$(prefix))
115 ifeq (,$(install_root))
116 LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
123 # Build subdirectory lib objects.
124 lib-noranlib: subdir_lib
126 ifeq (yes,$(build-shared))
127 # Build the shared object from the PIC object library.
128 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
129 endif # $(build-shared)
132 # This is a handy script for running any dynamically linked program against
133 # the current libc build for testing.
134 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
135 $(..)Makeconfig $(..)Makefile
137 echo 'builddir=`dirname "$$0"`'; \
138 echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
139 echo 'exec $(subst $(common-objdir),"$${builddir}",\
140 $(test-program-prefix)) $${1+"$$@"}'; \
144 postclean-generated += testrun.sh
146 others: $(common-objpfx)testrun.sh
148 # Makerules creates a file `stubs' in each subdirectory, which
149 # contains `#define __stub_FUNCTION' for each function defined in that
150 # directory which is a stub.
151 # Here we paste all of these together into <gnu/stubs.h>.
153 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
156 installed-stubs = $(inst_includedir)/gnu/stubs.h
158 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
160 $(inst_includedir)/gnu/stubs.h: $(+force)
161 $(make-target-directory)
163 echo '/* This file is automatically generated.';\
164 echo " This file selects the right generated file of \`__stub_FUNCTION' macros";\
165 echo ' based on the architecture being compiled for. */'; \
167 $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
169 $(foreach v,$(abi-variants),\
170 $(if $(abi-$(v)-condition),\
171 echo '#if $(abi-$(v)-condition)'; \
172 echo '# include <gnu/stubs-$(v).h>'); \
173 $(if $(abi-$(v)-condition),echo '#endif';) \
174 rm -f $(@:.d=.h).new$(v); \
177 mv -f $(@:.d=.h).new $(@:.d=.h)
179 install-others-nosubdir: $(installed-stubs)
183 # Since stubs.h is never needed when building the library, we simplify the
184 # hairy installation process by producing it in place only as the last part
185 # of the top-level `make install'. It depends on subdir_install, which
186 # iterates over all the subdirs; subdir_install in each subdir depends on
187 # the subdir's stubs file. Having more direct dependencies would result in
188 # extra iterations over the list for subdirs and many recursive makes.
189 $(installed-stubs): include/stubs-prologue.h subdir_install
190 $(make-target-directory)
191 @rm -f $(objpfx)stubs.h
192 (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
193 if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
194 then echo 'stubs.h unchanged'; \
195 else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
196 rm -f $(objpfx)stubs.h
198 # This makes the Info or DVI file of the documentation from the Texinfo source.
199 .PHONY: info dvi pdf html
201 $(MAKE) $(PARALLELMFLAGS) -C manual $@
203 # This makes all the subdirectory targets.
205 # For each target, make it depend on DIR/target for each subdirectory DIR.
206 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
208 # Compute a list of all those targets.
209 all-subdirs-targets := $(foreach dir,$(subdirs),\
210 $(addprefix $(dir)/,$(+subdir_targets)))
212 # The action for each of those is to cd into the directory and make the
214 $(all-subdirs-targets):
215 $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
217 define subdir-target-args
218 subdir=$(@D)$(if $($(@D)-srcdir),\
219 -C $($(@D)-srcdir) ..=`pwd`/,\
223 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
225 # Targets to clean things up to various degrees.
227 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
230 # Subroutines of all cleaning targets.
231 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
232 -rm -f $(foreach o,$(object-suffixes-for-libc),\
233 $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
234 $(addprefix $(objpfx),$(install-lib))
235 parent-clean: parent-mostlyclean common-clean
237 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
238 $(addprefix $(objpfx),sysd-dirs sysd-rules) \
239 $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
242 # This is done this way rather than having `subdir_clean' be a
243 # dependency of this target so that libc.a will be removed before the
244 # subdirectories are dealt with and so they won't try to remove object
245 # files from it when it's going to be removed anyway.
246 @$(MAKE) subdir_clean no_deps=t
248 mostlyclean: parent-mostlyclean
249 @$(MAKE) subdir_mostlyclean no_deps=t
253 @$(MAKE) subdir_testclean no_deps=t
256 vpath c++-types.data $(+sysdep_dirs)
258 tests-special += $(objpfx)c++-types-check.out
259 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
260 scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
264 tests-special += $(objpfx)check-local-headers.out
265 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
266 AWK='$(AWK)' scripts/check-local-headers.sh \
267 "$(includedir)" "$(objpfx)" < /dev/null > $@; \
270 ifneq "$(headers)" ""
271 # Special test of all the installed headers in this directory.
272 tests-special += $(objpfx)check-installed-headers-c.out
273 libof-check-installed-headers-c := testsuite
274 $(objpfx)check-installed-headers-c.out: \
275 scripts/check-installed-headers.sh $(headers)
276 $(SHELL) $(..)scripts/check-installed-headers.sh c \
277 "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
282 tests-special += $(objpfx)check-installed-headers-cxx.out
283 libof-check-installed-headers-cxx := testsuite
284 $(objpfx)check-installed-headers-cxx.out: \
285 scripts/check-installed-headers.sh $(headers)
286 $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
287 "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
293 define summarize-tests
294 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
295 @echo "Summary of test results$2:"
296 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
297 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
300 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
301 tests: $(tests-special)
302 $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
303 $(sort $(tests-special-notdir:.out=)) \
304 > $(objpfx)subdir-tests.sum
305 $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
306 $(sort $(subdirs) .) \
308 $(call summarize-tests,tests.sum)
310 $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
312 > $(objpfx)xtests.sum
313 $(call summarize-tests,xtests.sum, for extra tests)
315 # The realclean target is just like distclean for the parent, but we want
316 # the subdirs to know the difference in case they care.
317 realclean distclean: parent-clean
318 # This is done this way rather than having `subdir_distclean' be a
319 # dependency of this target so that libc.a will be removed before the
320 # subdirectories are dealt with and so they won't try to remove object
321 # files from it when it's going to be removed anyway.
322 @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
323 sysdep-subdirs="$(sysdep-subdirs)"
326 # Subroutine of distclean and realclean.
327 distclean-1: subdir_$(distclean-1)
328 -rm -f $(config-generated)
329 -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
330 -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
332 -rm -f $(objpfx)Makefile
334 -rm -f $(sysdep-$(distclean-1))
336 # Make the TAGS file for Emacs users.
340 scripts/list-sources.sh | sed -n -e '/Makefile/p' \
341 $(foreach S,[chsSyl] cxx sh bash pl,\
342 $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
345 # Make the distribution tarfile.
346 .PHONY: dist dist-prepare
348 generated := $(generated) stubs.h
350 files-for-dist := README INSTALL configure ChangeLog NEWS
352 # Regenerate stuff, then error if these things are not committed yet.
353 dist-prepare: $(files-for-dist)
354 conf=`find sysdeps -name configure`; \
356 git diff --stat HEAD -- $^ $$conf \
357 | $(AWK) '{ print; rc=1 } END { exit rc }'
360 git archive --prefix=$*/ $* > $@.new
363 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
365 ifneq (,$(strip $(dist-version)))
366 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
370 @if v=`git describe`; then \
371 echo Distribution version $$v; \
372 $(MAKE) dist dist-version=$$v; \
378 INSTALL: manual/install-plain.texi manual/macros.texi \
379 $(common-objpfx)manual/pkgvers.texi manual/install.texi
380 makeinfo --no-validate --plaintext --no-number-sections \
381 -I$(common-objpfx)manual $< -o $@-tmp
382 $(AWK) 'NF == 0 { ++n; next } \
383 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
388 $(common-objpfx)manual/%: FORCE
389 $(MAKE) $(PARALLELMFLAGS) -C manual $@
392 iconvdata/% localedata/% po/%: FORCE
393 $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)