Makefile

   1 # Copyright (C) 1991-2022 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 # <https://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 help minihelp
  30 all: minihelp lib others
  31
  32 help:
  33         @sed '0,/^help-starts-here$$/d' Makefile.help
  34
  35 minihelp:
  36         @echo
  37         @echo type \"make help\" for help with common glibc makefile targets
  38         @echo
  39
  40 \f
  41 ifneq ($(AUTOCONF),no)
  42
  43 define autoconf-it
  44 @-rm -f $@.new
  45 $(AUTOCONF) $(ACFLAGS) $< > $@.new
  46 chmod a-w$(patsubst %,$(comma)a+x,$(filter .,$(@D))) $@.new
  47 mv -f $@.new $@
  48 endef
  49
  50 configure: configure.ac aclocal.m4; $(autoconf-it)
  51 %/configure: %/configure.ac aclocal.m4; $(autoconf-it)
  52 %/preconfigure: %/preconfigure.ac aclocal.m4; $(autoconf-it)
  53
  54 endif # $(AUTOCONF) = no
  55
  56
  57 # We don't want to run anything here in parallel.
  58 .NOTPARALLEL:
  59
  60 # These are the targets that are made by making them in each subdirectory.
  61 +subdir_targets := subdir_lib objects objs others subdir_mostlyclean    \
  62                    subdir_clean subdir_distclean subdir_realclean       \
  63                    tests xtests                                         \
  64                    subdir_update-abi subdir_check-abi                   \
  65                    subdir_update-all-abi                                \
  66                    subdir_echo-headers                                  \
  67                    subdir_install                                       \
  68                    subdir_objs subdir_stubs subdir_testclean            \
  69                    $(addprefix install-, no-libc.a bin lib data headers others)
  70 \f
  71 headers := limits.h values.h features.h features-time64.h gnu-versions.h \
  72            bits/xopen_lim.h gnu/libc-version.h stdc-predef.h \
  73            bits/libc-header-start.h
  74
  75 echo-headers: subdir_echo-headers
  76
  77 # The headers are in the include directory.
  78 subdir-dirs = include
  79 vpath %.h $(subdir-dirs)
  80
  81 # What to install.
  82 install-others = $(inst_includedir)/gnu/stubs.h
  83 install-bin-script =
  84
  85 ifeq (yes,$(build-shared))
  86 headers += gnu/lib-names.h
  87 endif
  88
  89 include Makerules
  90
  91 ifeq ($(build-programs),yes)
  92 others: $(addprefix $(objpfx),$(install-bin-script))
  93 endif
  94
  95 # Install from subdirectories too.
  96 install: subdir_install
  97
  98 # Explicit dependency so that `make install-headers' works
  99 install-headers: install-headers-nosubdir
 100
 101 # Make sure that the dynamic linker is installed before libc.
 102 $(inst_slibdir)/libc-$(version).so: elf/ldso_install
 103
 104 .PHONY: elf/ldso_install
 105 elf/ldso_install:
 106         $(MAKE) -C $(@D) $(@F)
 107
 108 # Create links for shared libraries using the `ldconfig' program if possible.
 109 # Ignore the error if we cannot update /etc/ld.so.cache.
 110 ifeq (no,$(cross-compiling))
 111 ifeq (yes,$(build-shared))
 112 install:
 113         -test ! -x $(elf-objpfx)ldconfig || LC_ALL=C \
 114           $(elf-objpfx)ldconfig $(addprefix -r ,$(install_root)) \
 115                                 $(slibdir) $(libdir)
 116 ifneq (no,$(PERL))
 117 ifeq (/usr,$(prefix))
 118 ifeq (,$(install_root))
 119         LD_SO=$(ld.so-version) CC="$(CC)" $(PERL) scripts/test-installation.pl $(common-objpfx)
 120 endif
 121 endif
 122 endif
 123 endif
 124 endif
 125
 126 # Build subdirectory lib objects.
 127 lib-noranlib: subdir_lib
 128
 129 ifeq (yes,$(build-shared))
 130 # Build the shared object from the PIC object library.
 131 lib: $(common-objpfx)libc.so $(common-objpfx)linkobj/libc.so
 132 endif # $(build-shared)
 133
 134 # Used to build testrun.sh.
 135 define testrun-script
 136 #!/bin/bash
 137 builddir=`dirname "$$0"`
 138 GCONV_PATH="$${builddir}/iconvdata"
 139
 140 usage () {
 141 cat << EOF
 142 Usage: $$0 [OPTIONS] <program> [ARGUMENTS...]
 143
 144   --tool=TOOL  Run with the specified TOOL. It can be strace, rpctrace,
 145                valgrind or container. The container will run within
 146                support/test-container.
 147 EOF
 148
 149   exit 1
 150 }
 151
 152 toolname=default
 153 while test $$# -gt 0 ; do
 154   case "$$1" in
 155     --tool=*)
 156       toolname="$${1:7}"
 157       shift
 158       ;;
 159     --*)
 160       usage
 161       ;;
 162     *)
 163       break
 164       ;;
 165   esac
 166 done
 167
 168 if test $$# -eq 0 ; then
 169   usage
 170 fi
 171
 172 case "$$toolname" in
 173   default)
 174     exec $(subst $(common-objdir),"$${builddir}", $(test-program-prefix)) \
 175       $${1+"$$@"}
 176     ;;
 177   strace)
 178     exec strace $(patsubst %, -E%, $(run-program-env)) \
 179       $(test-via-rtld-prefix) $${1+"$$@"}
 180     ;;
 181   rpctrace)
 182     exec rpctrace $(patsubst %, -E%, $(run-program-env)) \
 183       $(test-via-rtld-prefix) $${1+"$$@"}
 184     ;;
 185   valgrind)
 186     exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
 187     ;;
 188   container)
 189     exec env $(run-program-env) $(test-via-rtld-prefix) \
 190       $(common-objdir)/support/test-container \
 191       env $(run-program-env) $(test-via-rtld-prefix) $${1+"$$@"}
 192     ;;
 193   *)
 194     usage
 195     ;;
 196 esac
 197 endef
 198
 199 # This is a handy script for running any dynamically linked program against
 200 # the current libc build for testing.
 201 $(common-objpfx)testrun.sh: $(common-objpfx)config.make \
 202                             $(..)Makeconfig $(..)Makefile
 203         $(file >$@T,$(testrun-script))
 204         chmod a+x $@T
 205         mv -f $@T $@
 206 postclean-generated += testrun.sh
 207
 208 define debugglibc
 209 #!/bin/bash
 210
 211 SOURCE_DIR="$(CURDIR)"
 212 BUILD_DIR="$(common-objpfx)"
 213 CMD_FILE="$(common-objpfx)debugglibc.gdb"
 214 CONTAINER=false
 215 DIRECT=true
 216 STATIC=false
 217 SYMBOLSFILE=true
 218 unset TESTCASE
 219 unset BREAKPOINTS
 220 unset ENVVARS
 221
 222 usage()
 223 {
 224 cat << EOF
 225 Usage: $$0 [OPTIONS] <program>
 226
 227    Or: $$0 [OPTIONS] -- <program> [<args>]...
 228
 229   where <program> is the path to the program being tested,
 230   and <args> are the arguments to be passed to it.
 231
 232 Options:
 233
 234   -h, --help
 235         Prints this message and leaves.
 236
 237   The following options require one argument:
 238
 239   -b, --breakpoint
 240         Breakpoints to set at the beginning of the execution
 241         (each breakpoint demands its own -b option, e.g. -b foo -b bar)
 242   -e, --environment-variable
 243         Environment variables to be set with 'exec-wrapper env' in GDB
 244         (each environment variable demands its own -e option, e.g.
 245         -e FOO=foo -e BAR=bar)
 246
 247   The following options do not take arguments:
 248
 249   -c, --in-container
 250         Run the test case inside a container and automatically attach
 251         GDB to it.
 252   -i, --no-direct
 253         Selects whether to pass the --direct flag to the program.
 254         --direct is useful when debugging glibc test cases. It inhibits the
 255         tests from forking and executing in a subprocess.
 256         Default behaviour is to pass the --direct flag, except when the
 257         program is run with user specified arguments using the "--" separator.
 258   -s, --no-symbols-file
 259         Do not tell GDB to load debug symbols from the program.
 260 EOF
 261 }
 262
 263 # Parse input options
 264 while [[ $$# > 0 ]]
 265 do
 266   key="$$1"
 267   case $$key in
 268     -h|--help)
 269       usage
 270       exit 0
 271       ;;
 272     -b|--breakpoint)
 273       BREAKPOINTS="break $$2\n$$BREAKPOINTS"
 274       shift
 275       ;;
 276     -e|--environment-variable)
 277       ENVVARS="$$2 $$ENVVARS"
 278       shift
 279       ;;
 280     -c|--in-container)
 281       CONTAINER=true
 282       ;;
 283     -i|--no-direct)
 284       DIRECT=false
 285       ;;
 286     -s|--no-symbols-file)
 287       SYMBOLSFILE=false
 288       ;;
 289     --)
 290       shift
 291       TESTCASE=$$1
 292       COMMANDLINE="$$@"
 293       # Don't add --direct when user specifies program arguments
 294       DIRECT=false
 295       break
 296       ;;
 297     *)
 298       TESTCASE=$$1
 299       COMMANDLINE=$$TESTCASE
 300       ;;
 301   esac
 302   shift
 303 done
 304
 305 # Check for required argument and if the testcase exists
 306 if [ ! -v TESTCASE ] || [ ! -f $${TESTCASE} ]
 307 then
 308   usage
 309   exit 1
 310 fi
 311
 312 # Container tests needing locale data should install them in-container.
 313 # Other tests/binaries need to use locale data from the build tree.
 314 if [ "$$CONTAINER" = false ]
 315 then
 316   ENVVARS="GCONV_PATH=$${BUILD_DIR}/iconvdata $$ENVVARS"
 317   ENVVARS="LOCPATH=$${BUILD_DIR}/localedata $$ENVVARS"
 318   ENVVARS="LC_ALL=C $$ENVVARS"
 319 fi
 320
 321 # Expand environment setup command
 322 if [ -v ENVVARS ]
 323 then
 324   ENVVARSCMD="set exec-wrapper env $$ENVVARS"
 325 fi
 326
 327 # Expand direct argument
 328 if [ "$$DIRECT" == true ]
 329 then
 330   DIRECT="--direct"
 331 else
 332   DIRECT=""
 333 fi
 334
 335 # Check if the test case is static
 336 if file $${TESTCASE} | grep "statically linked" >/dev/null
 337 then
 338   STATIC=true
 339 else
 340   STATIC=false
 341 fi
 342
 343 # Expand symbols loading command
 344 if [ "$$SYMBOLSFILE" == true ]
 345 then
 346   SYMBOLSFILE="add-symbol-file $${TESTCASE}"
 347 else
 348   SYMBOLSFILE=""
 349 fi
 350
 351 # GDB commands template
 352 template ()
 353 {
 354 cat <<EOF
 355 set environment C -E -x c-header
 356 set auto-load safe-path $${BUILD_DIR}/nptl_db:\$$debugdir:\$$datadir/auto-load
 357 set libthread-db-search-path $${BUILD_DIR}/nptl_db
 358 __ENVVARS__
 359 __SYMBOLSFILE__
 360 break _dl_start_user
 361 run --library-path $(rpath-link):$${BUILD_DIR}/nptl_db \
 362 __COMMANDLINE__ __DIRECT__
 363 __BREAKPOINTS__
 364 EOF
 365 }
 366
 367 # Generate the commands file for gdb initialization
 368 template | sed \
 369   -e "s|__ENVVARS__|$$ENVVARSCMD|" \
 370   -e "s|__SYMBOLSFILE__|$$SYMBOLSFILE|" \
 371   -e "s|__COMMANDLINE__|$$COMMANDLINE|" \
 372   -e "s|__DIRECT__|$$DIRECT|" \
 373   -e "s|__BREAKPOINTS__|$$BREAKPOINTS|" \
 374   > $$CMD_FILE
 375
 376 echo
 377 echo "Debugging glibc..."
 378 echo "Build directory  : $$BUILD_DIR"
 379 echo "Source directory : $$SOURCE_DIR"
 380 echo "GLIBC Testcase   : $$TESTCASE"
 381 echo "GDB Commands     : $$CMD_FILE"
 382 echo "Env vars         : $$ENVVARS"
 383 echo
 384
 385 if [ "$$CONTAINER" == true ]
 386 then
 387 # Use testrun.sh to start the test case with WAIT_FOR_DEBUGGER=1, then
 388 # automatically attach GDB to it.
 389 WAIT_FOR_DEBUGGER=1 $(common-objpfx)testrun.sh --tool=container $${TESTCASE} &
 390 gdb -x $${TESTCASE}.gdb
 391 elif [ "$$STATIC" == true ]
 392 then
 393 gdb $${TESTCASE}
 394 else
 395 # Start the test case debugging in two steps:
 396 #   1. the following command invokes gdb to run the loader;
 397 #   2. the commands file tells the loader to run the test case.
 398 gdb -q \
 399   -x $${CMD_FILE} \
 400   -d $${SOURCE_DIR} \
 401   $${BUILD_DIR}/elf/ld.so
 402 fi
 403 endef
 404
 405 # This is another handy script for debugging dynamically linked program
 406 # against the current libc build for testing.
 407 $(common-objpfx)debugglibc.sh: $(common-objpfx)config.make \
 408                             $(..)Makeconfig $(..)Makefile
 409         $(file >$@T,$(debugglibc))
 410         chmod a+x $@T
 411         mv -f $@T $@
 412 postclean-generated += debugglibc.sh debugglibc.gdb
 413
 414 others: $(common-objpfx)testrun.sh $(common-objpfx)debugglibc.sh
 415 \f
 416 # Makerules creates a file `stubs' in each subdirectory, which
 417 # contains `#define __stub_FUNCTION' for each function defined in that
 418 # directory which is a stub.
 419 # Here we paste all of these together into <gnu/stubs.h>.
 420
 421 subdir-stubs := $(foreach dir,$(subdirs),$(common-objpfx)$(dir)/stubs)
 422
 423 ifndef abi-variants
 424 installed-stubs = $(inst_includedir)/gnu/stubs.h
 425 else
 426 installed-stubs = $(inst_includedir)/gnu/stubs-$(default-abi).h
 427
 428 $(inst_includedir)/gnu/stubs.h: $(+force)
 429         $(make-target-directory)
 430         { \
 431          echo '/* This file is automatically generated.';\
 432          echo "   This file selects the right generated file of \`__stub_FUNCTION' macros";\
 433          echo '   based on the architecture being compiled for.  */'; \
 434          echo ''; \
 435          $(foreach h,$(abi-includes), echo '#include <$(h)>';) \
 436          echo ''; \
 437          $(foreach v,$(abi-variants),\
 438          $(if $(abi-$(v)-condition),\
 439          echo '#if $(abi-$(v)-condition)'; \
 440          echo '# include <gnu/stubs-$(v).h>'); \
 441          $(if $(abi-$(v)-condition),echo '#endif';) \
 442          rm -f $(@:.d=.h).new$(v); \
 443          ) \
 444         } > $(@:.d=.h).new
 445         mv -f $(@:.d=.h).new $(@:.d=.h)
 446
 447 install-others-nosubdir: $(installed-stubs)
 448 endif
 449
 450
 451 # Since stubs.h is never needed when building the library, we simplify the
 452 # hairy installation process by producing it in place only as the last part
 453 # of the top-level `make install'.  It depends on subdir_install, which
 454 # iterates over all the subdirs; subdir_install in each subdir depends on
 455 # the subdir's stubs file.  Having more direct dependencies would result in
 456 # extra iterations over the list for subdirs and many recursive makes.
 457 $(installed-stubs): include/stubs-prologue.h subdir_install
 458         $(make-target-directory)
 459         @rm -f $(objpfx)stubs.h
 460         (sed '/^@/d' $<; LC_ALL=C sort $(subdir-stubs)) > $(objpfx)stubs.h
 461         if test -r $@ && cmp -s $(objpfx)stubs.h $@; \
 462         then echo 'stubs.h unchanged'; \
 463         else $(INSTALL_DATA) $(objpfx)stubs.h $@; fi
 464         rm -f $(objpfx)stubs.h
 465 \f
 466 # This makes the Info or DVI file of the documentation from the Texinfo source.
 467 .PHONY: info dvi pdf html
 468 info dvi pdf html:
 469         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 470 \f
 471 # This makes all the subdirectory targets.
 472
 473 # For each target, make it depend on DIR/target for each subdirectory DIR.
 474 $(+subdir_targets): %: $(addsuffix /%,$(subdirs))
 475
 476 # Compute a list of all those targets.
 477 all-subdirs-targets := $(foreach dir,$(subdirs),\
 478                                  $(addprefix $(dir)/,$(+subdir_targets)))
 479
 480 # The action for each of those is to cd into the directory and make the
 481 # target there.
 482 $(all-subdirs-targets):
 483         $(MAKE) $(PARALLELMFLAGS) $(subdir-target-args) $(@F)
 484
 485 define subdir-target-args
 486 subdir=$(@D)$(if $($(@D)-srcdir),\
 487 -C $($(@D)-srcdir) ..=`pwd`/,\
 488 -C $(@D) ..=../)
 489 endef
 490
 491 .PHONY: $(+subdir_targets) $(all-subdirs-targets)
 492 \f
 493 # Targets to clean things up to various degrees.
 494
 495 .PHONY: clean realclean distclean distclean-1 parent-clean parent-mostlyclean \
 496         tests-clean
 497
 498 # Subroutines of all cleaning targets.
 499 parent-mostlyclean: common-mostlyclean # common-mostlyclean is in Makerules.
 500         -rm -f $(foreach o,$(object-suffixes-for-libc),\
 501                    $(common-objpfx)$(patsubst %,$(libtype$o),c)) \
 502                $(addprefix $(objpfx),$(install-lib))
 503 parent-clean: parent-mostlyclean common-clean
 504
 505 postclean = $(addprefix $(common-objpfx),$(postclean-generated)) \
 506             $(addprefix $(objpfx),sysd-dirs sysd-rules) \
 507             $(addprefix $(objpfx),sysd-sorted soversions.mk soversions.i)
 508
 509 clean: parent-clean
 510 # This is done this way rather than having `subdir_clean' be a
 511 # dependency of this target so that libc.a will be removed before the
 512 # subdirectories are dealt with and so they won't try to remove object
 513 # files from it when it's going to be removed anyway.
 514         @$(MAKE) subdir_clean no_deps=t
 515         -rm -f $(postclean)
 516 mostlyclean: parent-mostlyclean
 517         @$(MAKE) subdir_mostlyclean no_deps=t
 518         -rm -f $(postclean)
 519
 520 tests-clean:
 521         @$(MAKE) subdir_testclean no_deps=t
 522
 523 ifneq (,$(CXX))
 524 vpath c++-types.data $(+sysdep_dirs)
 525
 526 tests-special += $(objpfx)c++-types-check.out
 527 $(objpfx)c++-types-check.out: c++-types.data scripts/check-c++-types.sh
 528         scripts/check-c++-types.sh $< $(CXX) $(filter-out -std=gnu11 $(+gccwarn-c),$(CFLAGS)) $(CPPFLAGS) > $@; \
 529         $(evaluate-test)
 530 endif
 531
 532 tests-special += $(objpfx)check-local-headers.out
 533 $(objpfx)check-local-headers.out: scripts/check-local-headers.sh
 534         AWK='$(AWK)' scripts/check-local-headers.sh \
 535           "$(includedir)" "$(objpfx)" < /dev/null > $@; \
 536         $(evaluate-test)
 537
 538 ifneq "$(headers)" ""
 539 # Special test of all the installed headers in this directory.
 540 tests-special += $(objpfx)check-installed-headers-c.out
 541 libof-check-installed-headers-c := testsuite
 542 $(objpfx)check-installed-headers-c.out: \
 543     scripts/check-installed-headers.sh $(headers)
 544         $(SHELL) $(..)scripts/check-installed-headers.sh c \
 545           "$(CC) $(filter-out -std=%,$(CFLAGS)) -D_ISOMAC $(+includes)" \
 546           $(headers) > $@; \
 547         $(evaluate-test)
 548
 549 ifneq "$(CXX)" ""
 550 tests-special += $(objpfx)check-installed-headers-cxx.out
 551 libof-check-installed-headers-cxx := testsuite
 552 $(objpfx)check-installed-headers-cxx.out: \
 553     scripts/check-installed-headers.sh $(headers)
 554         $(SHELL) $(..)scripts/check-installed-headers.sh c++ \
 555           "$(CXX) $(filter-out -std=%,$(CXXFLAGS)) -D_ISOMAC $(+includes)" \
 556           $(headers) > $@; \
 557         $(evaluate-test)
 558 endif # $(CXX)
 559
 560 tests-special += $(objpfx)check-wrapper-headers.out
 561 $(objpfx)check-wrapper-headers.out: scripts/check-wrapper-headers.py $(headers)
 562         $(PYTHON) $< --root=. --subdir=. $(headers) \
 563           --generated $(common-generated) > $@; $(evaluate-test)
 564 endif # $(headers)
 565
 566 define summarize-tests
 567 @egrep -v '^(PASS|XFAIL):' $(objpfx)$1 || true
 568 @echo "Summary of test results$2:"
 569 @sed 's/:.*//' < $(objpfx)$1 | sort | uniq -c
 570 @! egrep -q -v '^(X?PASS|XFAIL|UNSUPPORTED):' $(objpfx)$1
 571 endef
 572
 573 # The intention here is to do ONE install of our build into the
 574 # testroot.pristine/ directory, then rsync (internal to
 575 # support/test-container) that to testroot.root/ at the start of each
 576 # test.  That way we can promise each test a "clean" install, without
 577 # having to do the install for each test.
 578 #
 579 # In addition, we have to copy some files (which we build) into this
 580 # root in addition to what glibc installs.  For example, many tests
 581 # require additional programs including /bin/sh, /bin/true, and
 582 # /bin/echo, all of which we build below to limit library dependencies
 583 # to just those things in glibc and language support libraries which
 584 # we also copy into the into the rootfs.  To determine what language
 585 # support libraries we need we build a "test" program in either C or
 586 # (if available) C++ just so we can copy in any shared objects
 587 # (which we do not build) that GCC-compiled programs depend on.
 588
 589
 590 ifeq (,$(CXX))
 591 LINKS_DSO_PROGRAM = links-dso-program-c
 592 else
 593 LINKS_DSO_PROGRAM = links-dso-program
 594 endif
 595
 596 $(tests-container) $(addsuffix /tests,$(subdirs)) : \
 597                 $(objpfx)testroot.pristine/install.stamp
 598 $(objpfx)testroot.pristine/install.stamp :
 599         test -d $(objpfx)testroot.pristine || \
 600           mkdir $(objpfx)testroot.pristine
 601         # We need a working /bin/sh for some of the tests.
 602         test -d $(objpfx)testroot.pristine/bin || \
 603           mkdir $(objpfx)testroot.pristine/bin
 604         # We need the compiled locale dir for localedef tests.
 605         test -d $(objpfx)testroot.pristine/$(complocaledir) || \
 606           mkdir -p $(objpfx)testroot.pristine/$(complocaledir)
 607         cp $(objpfx)support/shell-container $(objpfx)testroot.pristine/bin/sh
 608         cp $(objpfx)support/echo-container $(objpfx)testroot.pristine/bin/echo
 609         cp $(objpfx)support/true-container $(objpfx)testroot.pristine/bin/true
 610 ifeq ($(run-built-tests),yes)
 611         # Copy these DSOs first so we can overwrite them with our own.
 612         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 613                 $(rtld-prefix) \
 614                 $(objpfx)testroot.pristine/bin/sh \
 615                 | sed -n '/\//{s@.*=> /@/@;s/^[^/]*//;s/ .*//p;}'` ;\
 616           do \
 617             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 618               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 619             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 620           done
 621         for dso in `$(test-wrapper-env) LD_TRACE_LOADED_OBJECTS=1  \
 622                 $(rtld-prefix) \
 623                 $(objpfx)support/$(LINKS_DSO_PROGRAM) \
 624                 | sed -n '/\//{s@.*=> /@/@;s/^[^/]*//;s/ .*//p;}'` ;\
 625           do \
 626             test -d `dirname $(objpfx)testroot.pristine$$dso` || \
 627               mkdir -p `dirname $(objpfx)testroot.pristine$$dso` ;\
 628             $(test-wrapper) cp $$dso $(objpfx)testroot.pristine$$dso ;\
 629           done
 630 endif
 631         # $(symbolic-link-list) is a file that encodes $(DESTDIR) so we
 632         # have to purge it
 633         rm -f $(symbolic-link-list)
 634         # Setting INSTALL_UNCOMPRESSED causes localedata/Makefile to
 635         # install the charmaps uncompressed, as the testroot does not
 636         # provide a gunzip program.
 637         $(MAKE) install DESTDIR=$(objpfx)testroot.pristine \
 638           INSTALL_UNCOMPRESSED=yes subdirs='$(sorted-subdirs)'
 639         rm -f $(symbolic-link-list)
 640         touch $(objpfx)testroot.pristine/install.stamp
 641
 642 tests-special-notdir = $(patsubst $(objpfx)%, %, $(tests-special))
 643 tests: $(tests-special)
 644         $(..)scripts/merge-test-results.sh -s $(objpfx) "" \
 645           $(sort $(tests-special-notdir:.out=)) \
 646           > $(objpfx)subdir-tests.sum
 647         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-tests.sum \
 648           $(sort $(subdirs) .) \
 649           > $(objpfx)tests.sum
 650         $(call summarize-tests,tests.sum)
 651 xtests:
 652         $(..)scripts/merge-test-results.sh -t $(objpfx) subdir-xtests.sum \
 653           $(sort $(subdirs)) \
 654           > $(objpfx)xtests.sum
 655         $(call summarize-tests,xtests.sum, for extra tests)
 656
 657 # The realclean target is just like distclean for the parent, but we want
 658 # the subdirs to know the difference in case they care.
 659 realclean distclean: parent-clean
 660 # This is done this way rather than having `subdir_distclean' be a
 661 # dependency of this target so that libc.a will be removed before the
 662 # subdirectories are dealt with and so they won't try to remove object
 663 # files from it when it's going to be removed anyway.
 664         @$(MAKE) distclean-1 no_deps=t distclean-1=$@ avoid-generated=yes \
 665                  sysdep-subdirs="$(sysdep-subdirs)"
 666         -rm -f $(postclean)
 667
 668 # Subroutine of distclean and realclean.
 669 distclean-1: subdir_$(distclean-1)
 670         -rm -f $(config-generated)
 671         -rm -f $(addprefix $(objpfx),config.status config.cache config.log)
 672         -rm -f $(addprefix $(objpfx),config.make config-name.h config.h)
 673 ifdef objdir
 674         -rm -f $(objpfx)Makefile
 675 endif
 676         -rm -f $(sysdep-$(distclean-1))
 677 \f
 678 # Make the TAGS file for Emacs users.
 679
 680 .PHONY: TAGS
 681 TAGS:
 682         scripts/list-sources.sh | sed -n -e '/Makefile/p' \
 683           $(foreach S,[chsSyl] cxx sh bash pl,\
 684                     $(subst .,\.,-e '/.$S\(.in\)*$$/p')) \
 685         | $(ETAGS) -o $@ -
 686 \f
 687 # Make the distribution tarfile.
 688 .PHONY: dist dist-prepare
 689
 690 generated := $(generated) stubs.h
 691
 692 files-for-dist := README INSTALL configure NEWS
 693
 694 # Regenerate stuff, then error if these things are not committed yet.
 695 dist-prepare: $(files-for-dist)
 696         conf=`find sysdeps -name configure`; \
 697         $(MAKE) $$conf && \
 698         git diff --stat HEAD -- $^ $$conf \
 699         | $(AWK) '{ print; rc=1 } END { exit rc }'
 700
 701 %.tar: FORCE
 702         git archive --prefix=$*/ $* > $@.new
 703         mv -f $@.new $@
 704
 705 # Do `make dist dist-version=X.Y.Z' to make tar files of an older version.
 706
 707 ifneq (,$(strip $(dist-version)))
 708 dist: $(foreach Z,.bz2 .gz .xz,$(dist-version).tar$Z)
 709         md5sum $^
 710 else
 711 dist: dist-prepare
 712         @if v=`git describe`; then \
 713           echo Distribution version $$v; \
 714           $(MAKE) dist dist-version=$$v; \
 715         else \
 716           false; \
 717         fi
 718 endif
 719
 720 INSTALL: manual/install-plain.texi manual/macros.texi \
 721          $(common-objpfx)manual/pkgvers.texi manual/install.texi
 722         makeinfo --no-validate --plaintext --no-number-sections \
 723                  -I$(common-objpfx)manual $< -o $@-tmp
 724         $(AWK) 'NF == 0 { ++n; next } \
 725                 NF != 0 { while (n-- > 0) print ""; n = 0; print }' \
 726           < $@-tmp > $@-tmp2
 727         rm -f $@-tmp
 728         -chmod a-w $@-tmp2
 729         mv -f $@-tmp2 $@
 730 $(common-objpfx)manual/%: FORCE
 731         $(MAKE) $(PARALLELMFLAGS) -C manual $@
 732 FORCE:
 733
 734 iconvdata/% localedata/% po/%: FORCE
 735         $(MAKE) $(PARALLELMFLAGS) -C $(@D) $(@F)
 736
 737 # Convenience target to rerun one test, from the top of the build tree
 738 # Example: make test t=wcsmbs/test-wcsnlen
 739 .PHONY: test
 740 test :
 741         @-rm -f $(objpfx)$t.out
 742         $(MAKE) subdir=$(patsubst %/,%,$(dir $t)) -C $(dir $t) ..=../ $(objpfx)$t.out
 743         @cat $(objpfx)$t.test-result
 744         @cat $(objpfx)$t.out