Makefile

   1 # Copyright (C) 1991-2016 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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/>.
  17
  18 #
  19 #       Master Makefile for the GNU C library
  20 #
  21 ifneq (,)
  22 This makefile requires GNU Make.
  23 endif
  24
  25 include Makeconfig
  26
  27
  28 # This is the default target; it makes everything except the tests.
  29 .PHONY: all
  30 all: lib others
  31 \f
  32 ifneq ($(AUTOCONF),no)
  33
  34 define autoconf-it
  35 @-rm -f $@.new
  36 $(AUTOCONF) $(ACFLAGS) $< > $@.new
  37 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
  38 mv -f $@.new $@
  39 endef
  40
  41 configure: configure.ac aclocal.m4; $(autoconf-it)
  42 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
  43 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
  44
  45 endif # $(AUTOCONF) = no
  46
  47
  48 # We don't want to run anything here in parallel.
  49 .NOTPARALLEL:
  50
  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       \
  54                    tests xtests                                         \
  55                    subdir_update-abi subdir_check-abi                   \
  56                    subdir_update-all-abi                                \
  57                    subdir_echo-headers                                  \
  58                    subdir_install                                       \
  59                    subdir_objs subdir_stubs subdir_testclean            \
  60                    $(addprefix install-, no-libc.a bin lib data headers others)
  61 \f
  62 headers := limits.h values.h features.h gnu-versions.h \
  63            bits/xopen_lim.h gnu/libc-version.h stdc-predef.h
  64
  65 echo-headers: subdir_echo-headers
  66
  67 # The headers are in the include directory.
  68 subdir-dirs = include
  69 vpath %.h $(subdir-dirs)
  70
  71 # What to install.
  72 install-others = $(inst_includedir)/gnu/stubs.h
  73 install-bin-script =
  74
  75 ifeq (yes,$(build-shared))
  76 headers += gnu/lib-names.h
  77 endif
  78
  79 include Makerules
  80
  81 ifeq ($(build-programs),yes)
  82 others: $(addprefix $(objpfx),$(install-bin-script))
  83 endif
  84
  85 # Install from subdirectories too.
  86 install: subdir_install
  87
  88 # Explicit dependency so that `make install-headers' works
  89 install-headers: install-headers-nosubdir
  90
  91 # Make sure that the dynamic linker is installed before libc.
  92 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
  93
  94 .PHONY: elf/ldso_install
  95 elf/ldso_install:
  96         $(MAKE) -C $(@D) $(@F)
  97
  98 # Create links for shared libraries using the `ldconfig' program if possible.
  99 # Ignore the error if we cannot update /etc/ld.so.cache.
 100 ifeq (no,$(cross-compiling))
 101 ifeq (yes,$(build-shared))
 102 install: install-symbolic-link
 103 .PHONY: install-symbolic-link
 104 install-symbolic-link: subdir_install
 105         $(symbolic-link-prog) $(symbolic-link-list)
 106         rm -f $(symbolic-link-list)
 107
 108 install:
 109         -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
 110           $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
 111                                 $(slibdir) $(libdir)
 112 ifneq (no,$(PERL))
 113 ifeq (/usr,$(prefix))
 114 ifeq (,$(install_root))
 115         LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 116 endif
 117 endif
 118 endif
 119 endif
 120 endif
 121
 122 # Build subdirectory lib objects.
 123 lib-noranlib: subdir_lib
 124
 125 ifeq (yes,$(build-shared))
 126 # Build the shared object from the PIC object library.
 127 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
 128 endif # $(build-shared)
 129
 130
 131 # This is a handy script for running any dynamically linked program against
 132 # the current libc build for testing.
 133 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 134                             $(..)Makeconfig $(..)Makefile
 135         (echo '#!/bin/sh'; \
 136          echo 'builddir=`dirname "$$0"`'; \
 137          echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
 138          echo 'exec $(subst $(common-objdir),"$${builddir}",\
 139                             $(test-program-prefix)) $${1+"$$@"}'; \
 140         ) > $@T
 141         chmod a+x $@T
 142         mv -f $@T $@
 143 postclean-generated += testrun.sh
 144
 145 others: $(common-objpfx)testrun.sh
 146 \f
 147 # Makerules creates a file `stubs' in each subdirectory, which
 148 # contains `#define __stub_FUNCTION' for each function defined in that
 149 # directory which is a stub.
 150 # Here we paste all of these together into <gnu/stubs.h>.
 151
 152 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 153
 154 ifndef abi-variants
 155 installed-stubs = $(inst_includedir)/gnu/stubs.h
 156 else
 157 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
 158
 159 $(inst_includedir)/gnu/stubs.h: $(+force)
 160         $(make-target-directory)
 161         { \
 162          echo '/* This file is automatically generated.';\
 163          echo "   This file selects the right generated file of \`__stub_FUNCTION' macros";\
 164          echo '   based on the architecture being compiled for.  */'; \
 165          echo ''; \
 166          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
 167          echo ''; \
 168          $(foreach v,$(abi-variants),\
 169          $(if $(abi-$(v)-condition),\
 170          echo '#if $(abi-$(v)-condition)'; \
 171          echo '# include <gnu/stubs-$(v).h>'); \
 172          $(if $(abi-$(v)-condition),echo '#endif';) \
 173          rm -f $(@:.d=.h).new$(v); \
 174          ) \
 175         } > $(@:.d=.h).new
 176         mv -f $(@:.d=.h).new $(@:.d=.h)
 177
 178 install-others-nosubdir: $(installed-stubs)
 179 endif
 180
 181
 182 # Since stubs.h is never needed when building the library, we simplify the
 183 # hairy installation process by producing it in place only as the last part
 184 # of the top-level `make install'.  It depends on subdir_install, which
 185 # iterates over all the subdirs; subdir_install in each subdir depends on
 186 # the subdir's stubs file.  Having more direct dependencies would result in
 187 # extra iterations over the list for subdirs and many recursive makes.
 188 $(installed-stubs): include/stubs-prologue.h subdir_install
 189         $(make-target-directory)
 190         @rm -f $(objpfx)stubs.h
 191         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 192         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 193         then echo 'stubs.h unchanged'; \
 194         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 195         rm -f $(objpfx)stubs.h
 196 \f
 197 # This makes the Info or DVI file of the documentation from the Texinfo source.
 198 .PHONY: info dvi pdf html
 199 info dvi pdf html:
 200         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 201 \f
 202 # This makes all the subdirectory targets.
 203
 204 # For each target, make it depend on DIR/target for each subdirectory DIR.
 205 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 206
 207 # Compute a list of all those targets.
 208 all-subdirs-targets := $(foreach dir,$(subdirs),\
 209                                  $(addprefix $(dir)/,$(+subdir_targets)))
 210
 211 # The action for each of those is to cd into the directory and make the
 212 # target there.
 213 $(all-subdirs-targets):
 214         $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
 215
 216 define subdir-target-args
 217 subdir=$(@D)$(if $($(@D)-srcdir),\
 218 -C $($(@D)-srcdir) ..=`pwd`/,\
 219 -C $(@D) ..=../)
 220 endef
 221
 222 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 223 \f
 224 # Targets to clean things up to various degrees.
 225
 226 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 227         tests-clean
 228
 229 # Subroutines of all cleaning targets.
 230 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 231         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 232                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 233                $(addprefix $(objpfx),$(install-lib))
 234 parent-clean: parent-mostlyclean common-clean
 235
 236 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 237             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 238             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 239
 240 clean: parent-clean
 241 # This is done this way rather than having `subdir_clean' be a
 242 # dependency of this target so that libc.a will be removed before the
 243 # subdirectories are dealt with and so they won't try to remove object
 244 # files from it when it's going to be removed anyway.
 245         @$(MAKE) subdir_clean no_deps=t
 246         -rm -f $(postclean)
 247 mostlyclean: parent-mostlyclean
 248         @$(MAKE) subdir_mostlyclean no_deps=t
 249         -rm -f $(postclean)
 250
 251 tests-clean:
 252         @$(MAKE) subdir_testclean no_deps=t
 253
 254 ifneq (,$(CXX))
 255 vpath c++-types.data $(+sysdep_dirs)
 256
 257 tests-special += $(objpfx)c++-types-check.out
 258 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
 259         scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
 260         $(evaluate-test)
 261 endif
 262
 263 tests-special += $(objpfx)check-local-headers.out
 264 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 265         AWK='$(AWK)' scripts/check-local-headers.sh \
 266           "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 267         $(evaluate-test)
 268
 269 ifneq ($(PERL),no)
 270 installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \
 271                     crypt/crypt.h ctype/ctype.h debug/execinfo.h \
 272                     dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \
 273                     gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \
 274                     grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \
 275                     $(wildcard inet/netinet/*.h) \
 276                     $(wildcard inet/arpa/*.h inet/protocols/*.h) \
 277                     inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \
 278                     inet/netinet/icmp6.h intl/libintl.h io/sys/stat.h \
 279                     io/sys/statfs.h io/sys/vfs.h io/sys/statvfs.h \
 280                     io/fcntl.h io/sys/fcntl.h io/poll.h io/sys/poll.h \
 281                     io/utime.h io/ftw.h io/fts.h io/sys/sendfile.h \
 282                     libio/stdio.h libio/libio.h locale/locale.h \
 283                     locale/langinfo.h locale/xlocale.h login/utmp.h \
 284                     login/lastlog.h login/pty.h malloc/malloc.h \
 285                     malloc/obstack.h malloc/mcheck.h math/math.h \
 286                     math/complex.h math/fenv.h math/tgmath.h misc/sys/uio.h \
 287                     $(wildcard nis/rpcsvc/*.h) nptl_db/thread_db.h \
 288                     sysdeps/nptl/pthread.h sysdeps/pthread/semaphore.h \
 289                     nss/nss.h posix/sys/utsname.h posix/sys/times.h \
 290                     posix/sys/wait.h posix/sys/types.h posix/unistd.h \
 291                     posix/glob.h posix/regex.h posix/wordexp.h posix/fnmatch.h\
 292                     posix/getopt.h posix/tar.h posix/sys/unistd.h \
 293                     posix/sched.h posix/re_comp.h posix/wait.h \
 294                     posix/cpio.h posix/spawn.h pwd/pwd.h resolv/resolv.h \
 295                     resolv/netdb.h $(wildcard resolv/arpa/*.h) \
 296                     resource/sys/resource.h resource/sys/vlimit.h \
 297                     resource/sys/vtimes.h resource/ulimit.h rt/aio.h \
 298                     rt/mqueue.h setjmp/setjmp.h shadow/shadow.h \
 299                     signal/signal.h signal/sys/signal.h socket/sys/socket.h \
 300                     socket/sys/un.h stdio-common/printf.h \
 301                     stdio-common/stdio_ext.h stdlib/stdlib.h stdlib/alloca.h \
 302                     stdlib/monetary.h stdlib/fmtmsg.h stdlib/ucontext.h \
 303                     sysdeps/generic/inttypes.h sysdeps/generic/stdint.h \
 304                     stdlib/errno.h stdlib/sys/errno.h string/string.h \
 305                     string/strings.h string/memory.h string/endian.h \
 306                     string/argz.h string/envz.h string/byteswap.h \
 307                     $(wildcard sunrpc/rpc/*.h sunrpc/rpcsvc/*.h) \
 308                     sysvipc/sys/ipc.h sysvipc/sys/msg.h sysvipc/sys/sem.h \
 309                     sysvipc/sys/shm.h termios/termios.h \
 310                     termios/sys/termios.h termios/sys/ttychars.h time/time.h \
 311                     time/sys/time.h time/sys/timeb.h wcsmbs/wchar.h \
 312                     wctype/wctype.h
 313
 314 tests-special += $(objpfx)begin-end-check.out
 315 $(objpfx)begin-end-check.out: scripts/begin-end-check.pl
 316         $(PERL) scripts/begin-end-check.pl $(installed-headers) > $@; \
 317         $(evaluate-test)
 318 endif
 319
 320 define summarize-tests
 321 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 322 @echo "Summary of test results$2:"
 323 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
 324 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
 325 endef
 326
 327 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 328 tests: $(tests-special)
 329         $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
 330           $(sort $(tests-special-notdir:.out=)) \
 331           > $(objpfx)subdir-tests.sum
 332         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 333           $(sort $(subdirs) .) \
 334           > $(objpfx)tests.sum
 335         $(call summarize-tests,tests.sum)
 336 xtests:
 337         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 338           $(sort $(subdirs)) \
 339           > $(objpfx)xtests.sum
 340         $(call summarize-tests,xtests.sum, for extra tests)
 341
 342 # The realclean target is just like distclean for the parent, but we want
 343 # the subdirs to know the difference in case they care.
 344 realclean distclean: parent-clean
 345 # This is done this way rather than having `subdir_distclean' be a
 346 # dependency of this target so that libc.a will be removed before the
 347 # subdirectories are dealt with and so they won't try to remove object
 348 # files from it when it's going to be removed anyway.
 349         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 350                  sysdep-subdirs="$(sysdep-subdirs)"
 351         -rm -f $(postclean)
 352
 353 # Subroutine of distclean and realclean.
 354 distclean-1: subdir_$(distclean-1)
 355         -rm -f $(config-generated)
 356         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 357         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 358 ifdef objdir
 359         -rm -f $(objpfx)Makefile
 360 endif
 361         -rm -f $(sysdep-$(distclean-1))
 362 \f
 363 # Make the TAGS file for Emacs users.
 364
 365 .PHONY: TAGS
 366 TAGS:
 367         scripts/list-sources.sh | sed -n -e '/Makefile/p' \
 368           $(foreach S,[chsSyl] cxx sh bash pl,\
 369                     $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
 370         | $(ETAGS) -o $@ -
 371 \f
 372 # Make the distribution tarfile.
 373 .PHONY: dist dist-prepare
 374
 375 generated := $(generated) stubs.h
 376
 377 files-for-dist := README INSTALL configure ChangeLog NEWS
 378
 379 # Regenerate stuff, then error if these things are not committed yet.
 380 dist-prepare: $(files-for-dist)
 381         conf=`find sysdeps $(addsuffix /sysdeps,$(sysdeps-add-ons)) \
 382                    -name configure`; \
 383         $(MAKE) $$conf && \
 384         git diff --stat HEAD -- $^ $$conf \
 385         | $(AWK) '{ print; rc=1 } END { exit rc }'
 386
 387 %.tar: FORCE
 388         git archive --prefix=$*/ $* > $@.new
 389         mv -f $@.new $@
 390
 391 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 392
 393 ifneq (,$(strip $(dist-version)))
 394 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
 395         md5sum $^
 396 else
 397 dist: dist-prepare
 398         @if v=`git describe`; then \
 399           echo Distribution version $$v; \
 400           $(MAKE) dist dist-version=$$v; \
 401         else \
 402           false; \
 403         fi
 404 endif
 405
 406 INSTALL: manual/install-plain.texi manual/macros.texi \
 407          $(common-objpfx)manual/pkgvers.texi manual/install.texi
 408         makeinfo --no-validate --plaintext --no-number-sections \
 409                  -I$(common-objpfx)manual $< -o $@-tmp
 410         $(AWK) 'NF == 0 { ++n; next } \
 411                 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 412           < $@-tmp > $@-tmp2
 413         rm -f $@-tmp
 414         -chmod a-w $@-tmp2
 415         mv -f $@-tmp2 $@
 416 $(common-objpfx)manual/%: FORCE
 417         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 418 FORCE:
 419
 420 iconvdata/% localedata/% po/%: FORCE
 421         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)