Makefile

   1 # Copyright (C) 1991-2015 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_echo-headers                                  \
  57                    subdir_install                                       \
  58                    subdir_objs subdir_stubs subdir_testclean            \
  59                    $(addprefix install-, no-libc.a bin lib data headers others)
  60 \f
  61 headers := limits.h values.h features.h gnu-versions.h \
  62            bits/xopen_lim.h gnu/libc-version.h stdc-predef.h
  63
  64 echo-headers: subdir_echo-headers
  65
  66 # The headers are in the include directory.
  67 subdir-dirs = include
  68 vpath %.h $(subdir-dirs)
  69
  70 # What to install.
  71 install-others = $(inst_includedir)/gnu/stubs.h
  72 install-bin-script =
  73
  74 ifeq (yes,$(build-shared))
  75 headers += gnu/lib-names.h
  76 endif
  77
  78 include Makerules
  79
  80 ifeq ($(build-programs),yes)
  81 others: $(addprefix $(objpfx),$(install-bin-script))
  82 endif
  83
  84 # Install from subdirectories too.
  85 install: subdir_install
  86
  87 # Explicit dependency so that `make install-headers' works
  88 install-headers: install-headers-nosubdir
  89
  90 # Make sure that the dynamic linker is installed before libc.
  91 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
  92
  93 .PHONY: elf/ldso_install
  94 elf/ldso_install:
  95         $(MAKE) -C $(@D) $(@F)
  96
  97 # Create links for shared libraries using the `ldconfig' program if possible.
  98 # Ignore the error if we cannot update /etc/ld.so.cache.
  99 ifeq (no,$(cross-compiling))
 100 ifeq (yes,$(build-shared))
 101 install: install-symbolic-link
 102 .PHONY: install-symbolic-link
 103 install-symbolic-link: subdir_install
 104         $(symbolic-link-prog) $(symbolic-link-list)
 105         rm -f $(symbolic-link-list)
 106
 107 install:
 108         -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
 109           $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
 110                                 $(slibdir) $(libdir)
 111 ifneq (no,$(PERL))
 112 ifeq (/usr,$(prefix))
 113 ifeq (,$(install_root))
 114         LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 115 endif
 116 endif
 117 endif
 118 endif
 119 endif
 120
 121 # Build subdirectory lib objects.
 122 lib-noranlib: subdir_lib
 123
 124 ifeq (yes,$(build-shared))
 125 # Build the shared object from the PIC object library.
 126 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
 127 endif # $(build-shared)
 128
 129
 130 # This is a handy script for running any dynamically linked program against
 131 # the current libc build for testing.
 132 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 133                             $(..)Makeconfig $(..)Makefile
 134         (echo '#!/bin/sh'; \
 135          echo 'builddir=`dirname "$$0"`'; \
 136          echo 'GCONV_PATH="$${builddir}/iconvdata" \'; \
 137          echo 'exec $(subst $(common-objdir),"$${builddir}",\
 138                             $(test-program-prefix)) $${1+"$$@"}'; \
 139         ) > $@T
 140         chmod a+x $@T
 141         mv -f $@T $@
 142 postclean-generated += testrun.sh
 143
 144 others: $(common-objpfx)testrun.sh
 145 \f
 146 # Makerules creates a file `stubs' in each subdirectory, which
 147 # contains `#define __stub_FUNCTION' for each function defined in that
 148 # directory which is a stub.
 149 # Here we paste all of these together into <gnu/stubs.h>.
 150
 151 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 152
 153 ifndef abi-variants
 154 installed-stubs = $(inst_includedir)/gnu/stubs.h
 155 else
 156 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
 157
 158 $(inst_includedir)/gnu/stubs.h: $(+force)
 159         $(make-target-directory)
 160         { \
 161          echo '/* This file is automatically generated.';\
 162          echo "   This file selects the right generated file of \`__stub_FUNCTION' macros";\
 163          echo '   based on the architecture being compiled for.  */'; \
 164          echo ''; \
 165          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
 166          echo ''; \
 167          $(foreach v,$(abi-variants),\
 168          $(if $(abi-$(v)-condition),\
 169          echo '#if $(abi-$(v)-condition)'; \
 170          echo '# include <gnu/stubs-$(v).h>'); \
 171          $(if $(abi-$(v)-condition),echo '#endif';) \
 172          rm -f $(@:.d=.h).new$(v); \
 173          ) \
 174         } > $(@:.d=.h).new
 175         mv -f $(@:.d=.h).new $(@:.d=.h)
 176
 177 install-others-nosubdir: $(installed-stubs)
 178 endif
 179
 180
 181 # Since stubs.h is never needed when building the library, we simplify the
 182 # hairy installation process by producing it in place only as the last part
 183 # of the top-level `make install'.  It depends on subdir_install, which
 184 # iterates over all the subdirs; subdir_install in each subdir depends on
 185 # the subdir's stubs file.  Having more direct dependencies would result in
 186 # extra iterations over the list for subdirs and many recursive makes.
 187 $(installed-stubs): include/stubs-prologue.h subdir_install
 188         $(make-target-directory)
 189         @rm -f $(objpfx)stubs.h
 190         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 191         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 192         then echo 'stubs.h unchanged'; \
 193         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 194         rm -f $(objpfx)stubs.h
 195 \f
 196 # This makes the Info or DVI file of the documentation from the Texinfo source.
 197 .PHONY: info dvi pdf html
 198 info dvi pdf html:
 199         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 200 \f
 201 # This makes all the subdirectory targets.
 202
 203 # For each target, make it depend on DIR/target for each subdirectory DIR.
 204 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 205
 206 # Compute a list of all those targets.
 207 all-subdirs-targets := $(foreach dir,$(subdirs),\
 208                                  $(addprefix $(dir)/,$(+subdir_targets)))
 209
 210 # The action for each of those is to cd into the directory and make the
 211 # target there.
 212 $(all-subdirs-targets):
 213         $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
 214
 215 define subdir-target-args
 216 subdir=$(@D)$(if $($(@D)-srcdir),\
 217 -C $($(@D)-srcdir) ..=`pwd`/,\
 218 -C $(@D) ..=../)
 219 endef
 220
 221 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 222 \f
 223 # Targets to clean things up to various degrees.
 224
 225 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 226         tests-clean
 227
 228 # Subroutines of all cleaning targets.
 229 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 230         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 231                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 232                $(addprefix $(objpfx),$(install-lib))
 233 parent-clean: parent-mostlyclean common-clean
 234
 235 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 236             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 237             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 238
 239 clean: parent-clean
 240 # This is done this way rather than having `subdir_clean' be a
 241 # dependency of this target so that libc.a will be removed before the
 242 # subdirectories are dealt with and so they won't try to remove object
 243 # files from it when it's going to be removed anyway.
 244         @$(MAKE) subdir_clean no_deps=t
 245         -rm -f $(postclean)
 246 mostlyclean: parent-mostlyclean
 247         @$(MAKE) subdir_mostlyclean no_deps=t
 248         -rm -f $(postclean)
 249
 250 tests-clean:
 251         @$(MAKE) subdir_testclean no_deps=t
 252
 253 tests-special += $(objpfx)c++-types-check.out $(objpfx)check-local-headers.out
 254 ifneq ($(CXX),no)
 255
 256 vpath c++-types.data $(+sysdep_dirs)
 257
 258 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
 259         scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu99 -Wstrict-prototypes,$(CFLAGS)) $(CPPFLAGS) > $@; \
 260         $(evaluate-test)
 261 endif
 262
 263 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 264         AWK='$(AWK)' scripts/check-local-headers.sh \
 265           "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 266         $(evaluate-test)
 267
 268 ifneq ($(PERL),no)
 269 installed-headers = argp/argp.h assert/assert.h catgets/nl_types.h \
 270                     crypt/crypt.h ctype/ctype.h debug/execinfo.h \
 271                     dirent/dirent.h dlfcn/dlfcn.h elf/elf.h elf/link.h \
 272                     gmon/sys/gmon.h gmon/sys/gmon_out.h gmon/sys/profil.h \
 273                     grp/grp.h gshadow/gshadow.h iconv/iconv.h iconv/gconv.h \
 274                     $(wildcard inet/netinet/*.h) \
 275                     $(wildcard inet/arpa/*.h inet/protocols/*.h) \
 276                     inet/aliases.h inet/ifaddrs.h inet/netinet/ip6.h \
 277                     inet/netinet/icmp6.h intl/libintl.h io/sys/stat.h \
 278                     io/sys/statfs.h io/sys/vfs.h io/sys/statvfs.h \
 279                     io/fcntl.h io/sys/fcntl.h io/poll.h io/sys/poll.h \
 280                     io/utime.h io/ftw.h io/fts.h io/sys/sendfile.h \
 281                     libio/stdio.h libio/libio.h locale/locale.h \
 282                     locale/langinfo.h locale/xlocale.h login/utmp.h \
 283                     login/lastlog.h login/pty.h malloc/malloc.h \
 284                     malloc/obstack.h malloc/mcheck.h math/math.h \
 285                     math/complex.h math/fenv.h math/tgmath.h misc/sys/uio.h \
 286                     $(wildcard nis/rpcsvc/*.h) nptl_db/thread_db.h \
 287                     sysdeps/nptl/pthread.h sysdeps/pthread/semaphore.h \
 288                     nss/nss.h posix/sys/utsname.h posix/sys/times.h \
 289                     posix/sys/wait.h posix/sys/types.h posix/unistd.h \
 290                     posix/glob.h posix/regex.h posix/wordexp.h posix/fnmatch.h\
 291                     posix/getopt.h posix/tar.h posix/sys/unistd.h \
 292                     posix/sched.h posix/re_comp.h posix/wait.h \
 293                     posix/cpio.h posix/spawn.h pwd/pwd.h resolv/resolv.h \
 294                     resolv/netdb.h $(wildcard resolv/arpa/*.h) \
 295                     resource/sys/resource.h resource/sys/vlimit.h \
 296                     resource/sys/vtimes.h resource/ulimit.h rt/aio.h \
 297                     rt/mqueue.h setjmp/setjmp.h shadow/shadow.h \
 298                     signal/signal.h signal/sys/signal.h socket/sys/socket.h \
 299                     socket/sys/un.h stdio-common/printf.h \
 300                     stdio-common/stdio_ext.h stdlib/stdlib.h stdlib/alloca.h \
 301                     stdlib/monetary.h stdlib/fmtmsg.h stdlib/ucontext.h \
 302                     sysdeps/generic/inttypes.h sysdeps/generic/stdint.h \
 303                     stdlib/errno.h stdlib/sys/errno.h string/string.h \
 304                     string/strings.h string/memory.h string/endian.h \
 305                     string/argz.h string/envz.h string/byteswap.h \
 306                     $(wildcard sunrpc/rpc/*.h sunrpc/rpcsvc/*.h) \
 307                     sysvipc/sys/ipc.h sysvipc/sys/msg.h sysvipc/sys/sem.h \
 308                     sysvipc/sys/shm.h termios/termios.h \
 309                     termios/sys/termios.h termios/sys/ttychars.h time/time.h \
 310                     time/sys/time.h time/sys/timeb.h wcsmbs/wchar.h \
 311                     wctype/wctype.h
 312
 313 tests-special += $(objpfx)begin-end-check.out
 314 $(objpfx)begin-end-check.out: scripts/begin-end-check.pl
 315         $(PERL) scripts/begin-end-check.pl $(installed-headers) > $@; \
 316         $(evaluate-test)
 317 endif
 318
 319 define summarize-tests
 320 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 321 @echo "Summary of test results$2:"
 322 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
 323 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
 324 endef
 325
 326 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 327 tests: $(tests-special)
 328         $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
 329           $(sort $(tests-special-notdir:.out=)) \
 330           > $(objpfx)subdir-tests.sum
 331         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 332           $(sort $(subdirs) .) \
 333           > $(objpfx)tests.sum
 334         $(call summarize-tests,tests.sum)
 335 xtests:
 336         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 337           $(sort $(subdirs)) \
 338           > $(objpfx)xtests.sum
 339         $(call summarize-tests,xtests.sum, for extra tests)
 340
 341 # The realclean target is just like distclean for the parent, but we want
 342 # the subdirs to know the difference in case they care.
 343 realclean distclean: parent-clean
 344 # This is done this way rather than having `subdir_distclean' be a
 345 # dependency of this target so that libc.a will be removed before the
 346 # subdirectories are dealt with and so they won't try to remove object
 347 # files from it when it's going to be removed anyway.
 348         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 349                  sysdep-subdirs="$(sysdep-subdirs)"
 350         -rm -f $(postclean)
 351
 352 # Subroutine of distclean and realclean.
 353 distclean-1: subdir_$(distclean-1)
 354         -rm -f $(config-generated)
 355         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 356         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 357 ifdef objdir
 358         -rm -f $(objpfx)Makefile
 359 endif
 360         -rm -f $(sysdep-$(distclean-1))
 361 \f
 362 # Make the TAGS file for Emacs users.
 363
 364 .PHONY: TAGS
 365 TAGS:
 366         scripts/list-sources.sh | sed -n -e '/Makefile/p' \
 367           $(foreach S,[chsSyl] cxx sh bash pl,\
 368                     $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
 369         | $(ETAGS) -o $@ -
 370 \f
 371 # Make the distribution tarfile.
 372 .PHONY: dist dist-prepare
 373
 374 generated := $(generated) stubs.h
 375
 376 files-for-dist := README INSTALL configure ChangeLog NEWS
 377
 378 # Regenerate stuff, then error if these things are not committed yet.
 379 dist-prepare: $(files-for-dist)
 380         conf=`find sysdeps $(addsuffix /sysdeps,$(sysdeps-add-ons)) \
 381                    -name configure`; \
 382         $(MAKE) $$conf && \
 383         git diff --stat HEAD -- $^ $$conf \
 384         | $(AWK) '{ print; rc=1 } END { exit rc }'
 385
 386 %.tar: FORCE
 387         git archive --prefix=$*/ $* > $@.new
 388         mv -f $@.new $@
 389
 390 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 391
 392 ifneq (,$(strip $(dist-version)))
 393 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
 394         md5sum $^
 395 else
 396 dist: dist-prepare
 397         @if v=`git describe`; then \
 398           echo Distribution version $$v; \
 399           $(MAKE) dist dist-version=$$v; \
 400         else \
 401           false; \
 402         fi
 403 endif
 404
 405 INSTALL: manual/install-plain.texi manual/macros.texi \
 406          $(common-objpfx)manual/pkgvers.texi manual/install.texi
 407         makeinfo --no-validate --plaintext --no-number-sections \
 408                  -I$(common-objpfx)manual $< -o $@-tmp
 409         $(AWK) 'NF == 0 { ++n; next } \
 410                 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 411           < $@-tmp > $@-tmp2
 412         rm -f $@-tmp
 413         -chmod a-w $@-tmp2
 414         mv -f $@-tmp2 $@
 415 $(common-objpfx)manual/%: FORCE
 416         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 417 FORCE:
 418
 419 iconvdata/% localedata/% po/%: FORCE
 420         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 421
 422 # glibc 2.0 contains some header files which aren't used with glibc 2.1
 423 # anymore.
 424 # These rules should remove those headers
 425 ifeq (,$(install_root))
 426 ifeq ($(old-glibc-headers),yes)
 427 install: remove-old-headers
 428 endif
 429 endif
 430
 431 headers2_0 :=   __math.h bytesex.h confname.h direntry.h elfclass.h     \
 432                 errnos.h fcntlbits.h huge_val.h ioctl-types.h           \
 433                 ioctls.h iovec.h jmp_buf.h libc-lock.h local_lim.h      \
 434                 mathcalls.h mpool.h nan.h ndbm.h posix1_lim.h           \
 435                 posix2_lim.h posix_opt.h resourcebits.h schedbits.h     \
 436                 selectbits.h semaphorebits.h sigaction.h sigcontext.h   \
 437                 signum.h sigset.h sockaddrcom.h socketbits.h stab.def   \
 438                 statbuf.h statfsbuf.h stdio-lock.h stdio_lim.h          \
 439                 syscall-list.h termbits.h timebits.h ustatbits.h        \
 440                 utmpbits.h utsnamelen.h waitflags.h waitstatus.h        \
 441                 xopen_lim.h gnu/types.h sys/ipc_buf.h                   \
 442                 sys/kernel_termios.h sys/msq_buf.h sys/sem_buf.h        \
 443                 sys/shm_buf.h sys/socketcall.h sigstack.h
 444
 445 .PHONY: remove-old-headers
 446 remove-old-headers:
 447         rm -f $(addprefix $(inst_includedir)/, $(headers2_0))